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Zhao Q, Ni Y, Wei H, Duan Y, Chen J, Xiao Q, Gao J, Yu Y, Cui Y, Ouyang S, Miron RJ, Zhang Y, Wu C. Ion incorporation into bone grafting materials. Periodontol 2000 2024; 94:213-230. [PMID: 37823468 DOI: 10.1111/prd.12533] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 09/13/2023] [Accepted: 09/14/2023] [Indexed: 10/13/2023]
Abstract
The use of biomaterials in regenerative medicine has expanded to treat various disorders caused by trauma or disease in orthopedics and dentistry. However, the treatment of large and complex bone defects presents a challenge, leading to a pressing need for optimized biomaterials for bone repair. Recent advances in chemical sciences have enabled the incorporation of therapeutic ions into bone grafts to enhance their performance. These ions, such as strontium (for bone regeneration/osteoporosis), copper (for angiogenesis), boron (for bone growth), iron (for chemotaxis), cobalt (for B12 synthesis), lithium (for osteogenesis/cementogenesis), silver (for antibacterial resistance), and magnesium (for bone and cartilage regeneration), among others (e.g., zinc, sodium, and silica), have been studied extensively. This review aims to provide a comprehensive overview of current knowledge and recent developments in ion incorporation into biomaterials for bone and periodontal tissue repair. It also discusses recently developed biomaterials from a basic design and clinical application perspective. Additionally, the review highlights the importance of precise ion introduction into biomaterials to address existing limitations and challenges in combination therapies. Future prospects and opportunities for the development and optimization of biomaterials for bone tissue engineering are emphasized.
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Affiliation(s)
- Qin Zhao
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, China
- Taikang Center for Life and Medical Sciences, Wuhan University, Wuhan, China
- School of Medicine, Medical Research Institute, Wuhan University, Wuhan, China
| | - Yueqi Ni
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, China
- Taikang Center for Life and Medical Sciences, Wuhan University, Wuhan, China
- School of Medicine, Medical Research Institute, Wuhan University, Wuhan, China
| | - Hongjiang Wei
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, China
- Taikang Center for Life and Medical Sciences, Wuhan University, Wuhan, China
- School of Medicine, Medical Research Institute, Wuhan University, Wuhan, China
| | - Yiling Duan
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, China
- Taikang Center for Life and Medical Sciences, Wuhan University, Wuhan, China
- School of Medicine, Medical Research Institute, Wuhan University, Wuhan, China
| | - Jingqiu Chen
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, China
- Taikang Center for Life and Medical Sciences, Wuhan University, Wuhan, China
- School of Medicine, Medical Research Institute, Wuhan University, Wuhan, China
| | - Qi Xiao
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, China
- Taikang Center for Life and Medical Sciences, Wuhan University, Wuhan, China
- School of Medicine, Medical Research Institute, Wuhan University, Wuhan, China
| | - Jie Gao
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, China
- Taikang Center for Life and Medical Sciences, Wuhan University, Wuhan, China
- School of Medicine, Medical Research Institute, Wuhan University, Wuhan, China
| | - Yiqian Yu
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, China
- Taikang Center for Life and Medical Sciences, Wuhan University, Wuhan, China
- School of Medicine, Medical Research Institute, Wuhan University, Wuhan, China
| | - Yu Cui
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, China
- Taikang Center for Life and Medical Sciences, Wuhan University, Wuhan, China
- School of Medicine, Medical Research Institute, Wuhan University, Wuhan, China
| | - Simin Ouyang
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, China
- Taikang Center for Life and Medical Sciences, Wuhan University, Wuhan, China
- School of Medicine, Medical Research Institute, Wuhan University, Wuhan, China
| | - Richard J Miron
- Department of Periodontology, University of Bern, Bern, Switzerland
| | - Yufeng Zhang
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, China
- Taikang Center for Life and Medical Sciences, Wuhan University, Wuhan, China
- School of Medicine, Medical Research Institute, Wuhan University, Wuhan, China
| | - Chengtie Wu
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, China
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Montini D, Cara C, D’Arienzo M, Di Credico B, Mostoni S, Nisticò R, Pala L, Scotti R. Recent Advances on Porous Siliceous Materials Derived from Waste. Materials (Basel) 2023; 16:5578. [PMID: 37629869 PMCID: PMC10456868 DOI: 10.3390/ma16165578] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 08/01/2023] [Accepted: 08/08/2023] [Indexed: 08/27/2023]
Abstract
In recent years, significant efforts have been made in view of a transition from a linear to a circular economy, where the value of products, materials, resources, and waste is maintained as long as possible in the economy. The re-utilization of industrial and agricultural waste into value-added products, such as nanostructured siliceous materials, has become a challenging topic as an effective strategy in waste management and a sustainable model aimed to limit the use of landfill, conserve natural resources, and reduce the use of harmful substances. In light of these considerations, nanoporous silica has attracted attention in various applications owing to the tunable pore dimensions, high specific surface areas, tailorable structure, and facile post-functionalization. In this review, recent progress on the synthesis of siliceous materials from different types of waste is presented, analyzing the factors influencing the size and morphology of the final product, alongside different synthetic methods used to impart specific porosity. Applications in the fields of wastewater/gas treatment and catalysis are discussed, focusing on process feasibility in large-scale productions.
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Affiliation(s)
- Daniele Montini
- Department of Materials Science, University of Milano-Bicocca, INSTM, Via R. Cozzi 55, 20125 Milano, Italy; (D.M.); (M.D.); (B.D.C.); (S.M.)
| | - Claudio Cara
- Fluorsid S.p.A., Strada Macchiareddu 2a, 09032 Assemini, Italy; (C.C.); (L.P.)
| | - Massimiliano D’Arienzo
- Department of Materials Science, University of Milano-Bicocca, INSTM, Via R. Cozzi 55, 20125 Milano, Italy; (D.M.); (M.D.); (B.D.C.); (S.M.)
| | - Barbara Di Credico
- Department of Materials Science, University of Milano-Bicocca, INSTM, Via R. Cozzi 55, 20125 Milano, Italy; (D.M.); (M.D.); (B.D.C.); (S.M.)
| | - Silvia Mostoni
- Department of Materials Science, University of Milano-Bicocca, INSTM, Via R. Cozzi 55, 20125 Milano, Italy; (D.M.); (M.D.); (B.D.C.); (S.M.)
| | - Roberto Nisticò
- Department of Materials Science, University of Milano-Bicocca, INSTM, Via R. Cozzi 55, 20125 Milano, Italy; (D.M.); (M.D.); (B.D.C.); (S.M.)
| | - Luca Pala
- Fluorsid S.p.A., Strada Macchiareddu 2a, 09032 Assemini, Italy; (C.C.); (L.P.)
| | - Roberto Scotti
- Department of Materials Science, University of Milano-Bicocca, INSTM, Via R. Cozzi 55, 20125 Milano, Italy; (D.M.); (M.D.); (B.D.C.); (S.M.)
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Woods-Robinson R, Horton MK, Persson KA. A method to computationally screen for tunable properties of crystalline alloys. Patterns (N Y) 2023; 4:100723. [PMID: 37223274 PMCID: PMC10201207 DOI: 10.1016/j.patter.2023.100723] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Revised: 12/19/2022] [Accepted: 03/08/2023] [Indexed: 05/25/2023]
Abstract
Conventionally, high-throughput computational materials searches start from an input set of bulk compounds extracted from material databases, but, in contrast, many real functional materials are heavily engineered mixtures of compounds rather than single bulk compounds. We present a framework and open-source code to automatically construct and analyze possible alloys and solid solutions from a set of existing experimental or calculated ordered compounds, without requiring additional metadata except crystal structure. As a demonstration, we apply this framework to all compounds in the Materials Project to create a new, publicly available database of > 600,000 unique "alloy pair" entries that can be used to search for materials with tunable properties. We exemplify this approach by searching for transparent conductors and reveal candidates that might have been excluded in a traditional screening. This work lays a foundation from which materials databases can go beyond stoichiometric compounds and approach a more realistic description of compositionally tunable materials.
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Affiliation(s)
- Rachel Woods-Robinson
- Applied Science and Technology Graduate Group, University of California at Berkeley, Berkeley, CA 94720, USA
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Matthew K. Horton
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Kristin A. Persson
- Department of Materials Science and Engineering, University of California at Berkeley, Berkeley, CA 94720, USA
- Molecular Foundry Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
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Hwang ET. Management of the poultry red mite Dermanyssus gallinae with physical control methods by inorganic material and future perspectives. Poult Sci 2023; 102:102772. [PMID: 37245438 DOI: 10.1016/j.psj.2023.102772] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Revised: 05/01/2023] [Accepted: 05/02/2023] [Indexed: 05/30/2023] Open
Abstract
Poultry red mite (PRM), the ectoparasitic mite Dermanyssus gallinae found in laying hen farms, is a significant threat to poultry production and human health worldwide. It is a suspected disease vector and attacks hosts' other than chickens, including humans, and its economic importance has increased greatly. Different strategies to control PRM have been widely tested and investigated. In principle, several synthetic pesticides have been applied to control PRM. However, recent alternative control methods to avoid the side effects of pesticides have been introduced, although many remain in the early stage of commercialization. In particular, advances in material science have made various materials more affordable as alternatives for controlling PRM through physical interactions between PRM. This review provides a summary of PRM infestation, and then includes a discussion and comparison of different conventional approaches: 1) organic substances, 2) biological approaches, and 3) physical inorganic material treatment. The advantages of inorganic materials are discussed in detail, including the classification of materials, as well as the physical mechanism-induced effect on PRM. In this review, we also consider the perspective of using several synthetic inorganic materials to suggest novel strategies for improved monitoring and better information regarding treatment interventions.
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Affiliation(s)
- Ee Taek Hwang
- Department of Food Biotechnology, Dong-A University, Busan 49315, Republic of Korea.
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5
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Auvray T, Friščić T. Shaking Things from the Ground-Up: A Systematic Overview of the Mechanochemistry of Hard and High-Melting Inorganic Materials. Molecules 2023; 28. [PMID: 36677953 DOI: 10.3390/molecules28020897] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Revised: 01/08/2023] [Accepted: 01/09/2023] [Indexed: 01/17/2023]
Abstract
We provide a systematic overview of the mechanochemical reactions of inorganic solids, notably simple binary compounds, such as oxides, nitrides, carbides, sulphides, phosphides, hydrides, borides, borane derivatives, and related systems. Whereas the solid state has been traditionally considered to be of little synthetic value by the broader community of synthetic chemists, the solid-state community, and in particular researchers focusing on the reactions of inorganic materials, have thrived in building a rich and dynamic research field based on mechanically-driven transformations of inorganic substances typically seen as inert and high-melting. This review provides an insight into the chemical richness of such mechanochemical reactions and, at the same time, offers their tentative categorisation based on transformation type, resulting in seven distinct groupings: (i) the formation of adducts, (ii) the reactions of dehydration; (iii) oxidation-reduction (redox) reactions; (iv) metathesis (or exchange) reactions; (v) doping and structural rearrangements, including reactions involving the reaction vessel (the milling jar); (vi) acid-base reactions, and (vii) other, mixed type reactions. At the same time, we offer a parallel description of inorganic mechanochemical reactions depending on the reaction conditions, as those that: (i) take place under mild conditions (e.g., manual grinding using a mortar and a pestle); (ii) proceed gradually under mechanical milling; (iii) are self-sustained and initiated by mechanical milling, i.e., mechanically induced self-propagating reactions (MSRs); and (iv) proceed only via harsh grinding and are a result of chemical reactivity under strongly non-equilibrium conditions. By elaborating on typical examples and general principles in the mechanochemistry of hard and high-melting substances, this review provides a suitable complement to the existing literature, focusing on the properties and mechanochemical reactions of inorganic solids, such as nanomaterials and catalysts.
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Cui J, Yu X, Shen Y, Sun B, Guo W, Liu M, Chen Y, Wang L, Zhou X, Shafiq M, Mo X. Electrospinning Inorganic Nanomaterials to Fabricate Bionanocomposites for Soft and Hard Tissue Repair. Nanomaterials (Basel) 2023; 13:204. [PMID: 36616113 PMCID: PMC9823959 DOI: 10.3390/nano13010204] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 12/27/2022] [Accepted: 12/29/2022] [Indexed: 06/17/2023]
Abstract
Tissue engineering (TE) has attracted the widespread attention of the research community as a method of producing patient-specific tissue constructs for the repair and replacement of injured tissues. To date, different types of scaffold materials have been developed for various tissues and organs. The choice of scaffold material should take into consideration whether the mechanical properties, biodegradability, biocompatibility, and bioresorbability meet the physiological properties of the tissues. Owing to their broad range of physico-chemical properties, inorganic materials can induce a series of biological responses as scaffold fillers, which render them a good alternative to scaffold materials for tissue engineering (TE). While it is of worth to further explore mechanistic insight into the use of inorganic nanomaterials for tissue repair, in this review, we mainly focused on the utilization forms and strategies for fabricating electrospun membranes containing inorganic components based on electrospinning technology. A particular emphasis has been placed on the biological advantages of incorporating inorganic materials along with organic materials as scaffold constituents for tissue repair. As well as widely exploited natural and synthetic polymers, inorganic nanomaterials offer an enticing platform to further modulate the properties of composite scaffolds, which may help further broaden the application prospect of scaffolds for TE.
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Affiliation(s)
- Jie Cui
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, College of Biological Science and Medical Engineering, Donghua University, Shanghai 201620, China
| | - Xiao Yu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, College of Biological Science and Medical Engineering, Donghua University, Shanghai 201620, China
| | - Yihong Shen
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, College of Biological Science and Medical Engineering, Donghua University, Shanghai 201620, China
| | - Binbin Sun
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, College of Biological Science and Medical Engineering, Donghua University, Shanghai 201620, China
| | - Wanxin Guo
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, College of Biological Science and Medical Engineering, Donghua University, Shanghai 201620, China
| | - Mingyue Liu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, College of Biological Science and Medical Engineering, Donghua University, Shanghai 201620, China
| | - Yujie Chen
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, College of Biological Science and Medical Engineering, Donghua University, Shanghai 201620, China
| | - Li Wang
- College of Science, Donghua University, Shanghai 201620, China
| | - Xingping Zhou
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, College of Biological Science and Medical Engineering, Donghua University, Shanghai 201620, China
| | - Muhammad Shafiq
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, College of Biological Science and Medical Engineering, Donghua University, Shanghai 201620, China
- Department of Chemical Engineering, Faculty of Engineering, Graduate School, Kyushu University, 744 Motooka, Nishi-Ku, Fukuoka 819-0395, Japan
- Department of Biotechnology, Faculty of Science and Technology (FOST), University of Central Punjab (UCP), Lahore 54000, Pakistan
| | - Xiumei Mo
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, College of Biological Science and Medical Engineering, Donghua University, Shanghai 201620, China
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Choi YW, Kim CG, Nam EJ, Oh SR. An Experimental Study on the Healing Performance of Complex Capsules Using Multiphase Inorganic Materials for Crack Self-Healing of Cement Mortars. Materials (Basel) 2022; 15:8819. [PMID: 36556625 PMCID: PMC9786765 DOI: 10.3390/ma15248819] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Revised: 11/19/2022] [Accepted: 11/24/2022] [Indexed: 06/17/2023]
Abstract
Recently, a self-healing technique capable of repairing cracks in structures has emerged. Among various self-healing technologies, self-healing capsules can be largely classified into two types, depending on the phase of the core material: solid capsules, in which the core material is a powder; and microcapsules, in which the core material is a liquid. Solid capsules and microcapsules have different mechanisms, and their capsule sizes are also distinctly different. This suggests that each has advantages and disadvantages. Most of the studies known to date have utilized single capsules. However, if one uses a mixture of the two types of capsules, it is possible to highlight the strengths of each capsule and compensate for the weaknesses. Therefore, in this study, the first research on complex capsules that mixed solid capsules and microcapsules was attempted. As a result of the experiment, the complex capsule slightly reduced the fluidity of the mortar, but the effect was not significant. Moreover, the complex capsule tended to reduce the compressive strength of the mortar. In particular, it was found that the effect of solid capsules on the reduction in compressive strength among complex capsules was greater than that of microcapsules. Conversely, the healing performance increased when the ratio of solid capsules in the complex capsules was large.
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Dong R, Zhao Y, Song Y, Fu N, Omee SS, Dey S, Li Q, Wei L, Hu J. DeepXRD, a Deep Learning Model for Predicting XRD spectrum from Material Composition. ACS Appl Mater Interfaces 2022; 14:40102-40115. [PMID: 36018289 DOI: 10.1021/acsami.2c05812] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
One of the long-standing problems in materials science is how to predict a material's structure and then its properties given only its composition. Experimental characterization of crystal structures has been widely used for structure determination, which is, however, too expensive for high-throughput screening. At the same time, directly predicting crystal structures from compositions remains a challenging unsolved problem. Herein we propose a deep learning algorithm for predicting the XRD spectrum given only the composition of a material, which can then be used to infer key structural features for downstream structural analysis such as crystal system or space group classification or crystal lattice parameter determination or materials property prediction. Benchmark studies on two data sets show that our DeepXRD algorithm can achieve good performance for XRD prediction as evaluated over our test sets. It can thus be used in high-throughput screening in the huge materials composition space for materials discovery.
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Affiliation(s)
- Rongzhi Dong
- Department of Computer Science and Engineering, University of South Carolina, Columbia, South Carolina 29201, United States
| | - Yong Zhao
- Department of Computer Science and Engineering, University of South Carolina, Columbia, South Carolina 29201, United States
| | - Yuqi Song
- Department of Computer Science and Engineering, University of South Carolina, Columbia, South Carolina 29201, United States
| | - Nihang Fu
- Department of Computer Science and Engineering, University of South Carolina, Columbia, South Carolina 29201, United States
| | - Sadman Sadeed Omee
- Department of Computer Science and Engineering, University of South Carolina, Columbia, South Carolina 29201, United States
| | - Sourin Dey
- Department of Computer Science and Engineering, University of South Carolina, Columbia, South Carolina 29201, United States
| | - Qinyang Li
- Department of Computer Science and Engineering, University of South Carolina, Columbia, South Carolina 29201, United States
| | - Lai Wei
- Department of Computer Science and Engineering, University of South Carolina, Columbia, South Carolina 29201, United States
| | - Jianjun Hu
- Department of Computer Science and Engineering, University of South Carolina, Columbia, South Carolina 29201, United States
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Odziomek M, Thorimbert F, Boissiere C, Drisko GL, Parola S, Sanchez C, Faustini M. Periodic Nanoporous Inorganic Patterns Directly Made by Self-Ordering of Cracks. Adv Mater 2022; 34:e2204489. [PMID: 35797893 DOI: 10.1002/adma.202204489] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Revised: 06/21/2022] [Indexed: 06/15/2023]
Abstract
Solution-processed inorganic nanoporous films are key components for the vast spectrum of applications ranging from dew harvesting to solar cells. Shaping them into complex architectures required for advanced functionality often needs time-consuming or expensive fabrication. In this work, crack formation is harnessed to pattern porous inorganic films in a single step and without using lithography. Aqueous inks, containing inorganic precursors and polymeric latexes enable evaporation-induced, defect-free periodic arrays of cracks with tunable dimensions over several centimeters. The ink formulation strategy is generalized to more than ten inorganic materials including simple and binary porous oxide and metallic films covering a whole spectrum of properties including insulating, photocatalytic, electrocatalytic, conductive, or electrochromic materials. Notably, this approach enables 3D self-assembly of cracks by stacking several layers of different compositions, yielding periodic assemblies of polygonal shapes and Janus-type patterns. The crack patterned periodic arrays of nanoporous TiO2 diffract light, and are used as temperature-responsive diffraction grating sensors. More broadly, this method represents a unique example of a self-assembly process leading to long-range order (over several centimeters) in a robust and controlled way.
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Affiliation(s)
- Mateusz Odziomek
- Sorbonne Université, CNRS, Collège de France, UMR 7574, Chimie de la Matière Condensée de Paris, Paris, F-75005, France
- Université de Paris, CNRS, UMR 7086, ITODYS, 15 rue J-A de Baïf, Paris, F-75013, France
| | - Fanny Thorimbert
- Sorbonne Université, CNRS, Collège de France, UMR 7574, Chimie de la Matière Condensée de Paris, Paris, F-75005, France
| | - Cedric Boissiere
- Sorbonne Université, CNRS, Collège de France, UMR 7574, Chimie de la Matière Condensée de Paris, Paris, F-75005, France
| | - Glenna L Drisko
- CNRS Université de Bordeaux, Bordeaux INP, Université de Bordeaux, UMR 5026, ICMCB, Pessac, F-33600, France
| | - Stephane Parola
- Ecole Normale Supérieure de Lyon, Université Lyon 1, CNRS UMR 5182, Laboratoire de Chimie, 46 allée d'Italie, Lyon, F69364, France
| | - Clement Sanchez
- Sorbonne Université, CNRS, Collège de France, UMR 7574, Chimie de la Matière Condensée de Paris, Paris, F-75005, France
| | - Marco Faustini
- Sorbonne Université, CNRS, Collège de France, UMR 7574, Chimie de la Matière Condensée de Paris, Paris, F-75005, France
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10
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Skjærvø SH, Karlsen MA, Comin R, Billinge SJL. Refining perovskite structures to pair distribution function data using collective Glazer modes as a basis. IUCrJ 2022; 9:705-712. [PMID: 36071796 PMCID: PMC9438497 DOI: 10.1107/s2052252522007680] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Accepted: 07/28/2022] [Indexed: 06/15/2023]
Abstract
Structural modelling of octahedral tilts in perovskites is typically carried out using the symmetry constraints of the resulting space group. In most cases, this introduces more degrees of freedom than those strictly necessary to describe only the octahedral tilts. It can therefore be a challenge to disentangle the octahedral tilts from other structural distortions such as cation displacements and octahedral distortions. This paper reports the development of constraints for modelling pure octahedral tilts and implementation of the constraints in diffpy-CMI, a powerful package to analyse pair distribution function (PDF) data. The model in the program allows features in the PDF that come from rigid tilts to be separated from non-rigid relaxations, providing an intuitive picture of the tilting. The model has many fewer refinable variables than the unconstrained space group fits and provides robust and stable refinements of the tilt components. It further demonstrates the use of the model on the canonical tilted perovskite CaTiO3 which has the known Glazer tilt system α+β-β-. The Glazer model fits comparably to the corresponding space-group model Pnma below r = 14 Å and becomes progressively worse than the space-group model at higher r due to non-rigid distortions in the real material.
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Affiliation(s)
- Sandra Helen Skjærvø
- Department of Applied Physics and Applied Mathematics, Columbia University, New York, NY 10027, USA
| | - Martin A. Karlsen
- Department of Physics, Chemistry and Pharmacy, University of Southern Denmark, 5230 Odense M, Denmark
| | - Riccardo Comin
- Physics Department, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Simon J. L. Billinge
- Department of Applied Physics and Applied Mathematics, Columbia University, New York, NY 10027, USA
- Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory, Upton , NY 11973, USA
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Zhao D, Xu J, Sun Y, Li M, Zhong G, Hu X, Sun J, Li X, Su H, Li M, Zhang Z, Zhang Y, Zhao L, Zheng C, Sun X. Composition and Structure Progress of the Catalytic Interface Layer for Bipolar Membrane. Nanomaterials (Basel) 2022; 12:2874. [PMID: 36014740 PMCID: PMC9416193 DOI: 10.3390/nano12162874] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 08/17/2022] [Accepted: 08/18/2022] [Indexed: 06/15/2023]
Abstract
Bipolar membranes, a new type of composite ion exchange membrane, contain an anion exchange layer, a cation exchange layer and an interface layer. The interface layer or junction is the connection between the anion and cation exchange layers. Water is dissociated into protons and hydroxide ions at the junction, which provides solutions to many challenges in the chemical, environmental and energy fields. By combining bipolar membranes with electrodialysis technology, acids and bases could be produced with low cost and high efficiency. The interface layer or junction of bipolar membranes (BPMs) is the connection between the anion and cation exchange layers, which the membrane and interface layer modification are vital for improving the performance of BPMs. This paper reviews the effect of modification of a bipolar membrane interface layer on water dissociation efficiency and voltage across the membrane, which divides into three aspects: organic materials, inorganic materials and newly designed materials with multiple components. The structure of the interface layer is also introduced on the performance of bipolar membranes. In addition, the remainder of this review discusses the challenges and opportunities for the development of more efficient, sustainable and practical bipolar membranes.
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Affiliation(s)
- Di Zhao
- School of Chemical Engineering, Tianjin Key Laboratory of Green Chemical Technology and Process Engineering, State Key Laboratory of Separation Membrane and Membrane Processes, Tiangong University, Tianjin 300387, China
| | - Jinyun Xu
- School of Chemical Engineering, Tianjin Key Laboratory of Green Chemical Technology and Process Engineering, State Key Laboratory of Separation Membrane and Membrane Processes, Tiangong University, Tianjin 300387, China
| | - Yu Sun
- School of Chemical Engineering, Tianjin Key Laboratory of Green Chemical Technology and Process Engineering, State Key Laboratory of Separation Membrane and Membrane Processes, Tiangong University, Tianjin 300387, China
| | - Minjing Li
- School of Chemical Engineering, Tianjin Key Laboratory of Green Chemical Technology and Process Engineering, State Key Laboratory of Separation Membrane and Membrane Processes, Tiangong University, Tianjin 300387, China
| | - Guoqiang Zhong
- School of Chemical Engineering, Tianjin Key Laboratory of Green Chemical Technology and Process Engineering, State Key Laboratory of Separation Membrane and Membrane Processes, Tiangong University, Tianjin 300387, China
| | - Xudong Hu
- School of Materials Science and Engineering, Key Laboratory of Advanced Ceramics and Machining Technology, Ministry of Education, Tianjin University, Tianjin 300072, China
| | - Jiefang Sun
- Beijing Key Laboratory of Diagnostic and Traceability Technologies for Food Poisoning, Beijing Center for Disease Prevention and Control, Beijing 100013, China
| | - Xiaoyun Li
- Advanced Materials Research Laboratory, CNOOC Tianjin Chemical Research and Design Institute, Tianjin 300131, China
| | - Han Su
- School of Chemical Engineering, Tianjin Key Laboratory of Green Chemical Technology and Process Engineering, State Key Laboratory of Separation Membrane and Membrane Processes, Tiangong University, Tianjin 300387, China
| | - Ming Li
- School of Chemical Engineering, Tianjin Key Laboratory of Green Chemical Technology and Process Engineering, State Key Laboratory of Separation Membrane and Membrane Processes, Tiangong University, Tianjin 300387, China
| | - Ziqi Zhang
- School of Chemical Engineering, Tianjin Key Laboratory of Green Chemical Technology and Process Engineering, State Key Laboratory of Separation Membrane and Membrane Processes, Tiangong University, Tianjin 300387, China
| | - Yu Zhang
- School of Chemical Engineering, Tianjin Key Laboratory of Green Chemical Technology and Process Engineering, State Key Laboratory of Separation Membrane and Membrane Processes, Tiangong University, Tianjin 300387, China
| | - Liping Zhao
- School of Chemical Engineering, Tianjin Key Laboratory of Green Chemical Technology and Process Engineering, State Key Laboratory of Separation Membrane and Membrane Processes, Tiangong University, Tianjin 300387, China
| | - Chunming Zheng
- School of Chemical Engineering, Tianjin Key Laboratory of Green Chemical Technology and Process Engineering, State Key Laboratory of Separation Membrane and Membrane Processes, Tiangong University, Tianjin 300387, China
| | - Xiaohong Sun
- School of Materials Science and Engineering, Key Laboratory of Advanced Ceramics and Machining Technology, Ministry of Education, Tianjin University, Tianjin 300072, China
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12
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Wu D, Liu D, Tian X, Lei C, Chen X, Zhang S, Chen F, Wu K, Fu Q. A Universal Mechanochemistry Allows On-Demand Synthesis of Stable and Processable Liquid Metal Composites. Small Methods 2022; 6:e2200246. [PMID: 35615947 DOI: 10.1002/smtd.202200246] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Revised: 05/12/2022] [Indexed: 06/15/2023]
Abstract
Gallium-based liquid metal (LM) is regarded as one of the most promising candidates for the new-generation jigsaw of stretchable electronics. Nonetheless, the obstacle for the LM application lies in its high surface tension and easy fluidity which leads to great difficulty in handling and processing. Herein, a cross-mechanochemistry between liquid metal and inorganic solid, mediated via the coordination binding between the empty electronic orbits of the former and the lone electron pair of the latter is reported. The mechanism is validated via density functional theory calculation and electron energy loss spectroscopy, and experimentally proven to be universally applicable for various liquid metals and inorganic solids. With the unique mechanochemistry, simple ball milling allows on-demand transformation of the liquid metal into a low-surface-tension liquid, semi-solid paste, or even solid powder. The overcoming of the intrinsic high surface tension of the liquid metal with this approach unleashes the freedom to easily process the liquid metal composites into polymer composites or as direct molding processable paste and printable electronic ink.
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Affiliation(s)
- Die Wu
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China
| | - Dingyao Liu
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China
- Department of Electrical and Electronic Engineering, The University of Hong Kong, Hongkong, China
| | - Xinyu Tian
- Department of Electrical and Electronic Engineering, The University of Hong Kong, Hongkong, China
| | - Chuxin Lei
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China
- Materials Science and Engineering Program, Walker Department of Mechanical Engineering, The University of Texas at Austin, Austin, TX, 78712, USA
| | - Xianchun Chen
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China
| | - Shiming Zhang
- Department of Electrical and Electronic Engineering, The University of Hong Kong, Hongkong, China
| | - Feng Chen
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China
| | - Kai Wu
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China
| | - Qiang Fu
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China
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13
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Shan P, Long X. Symmetry of antiferroelectric crystals crystallized in polar point groups. IUCrJ 2022; 9:516-522. [PMID: 35844473 PMCID: PMC9252155 DOI: 10.1107/s2052252522006017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Accepted: 06/06/2022] [Indexed: 06/15/2023]
Abstract
Symmetry is an essential concept in physics, chemistry and materials science. Comprehensive, authoritative and accessible symmetry theory can provide a strong impetus for the development of related materials science. Through the sustained efforts of physicists and crystallographers, researchers have mastered the relationship between structural symmetry and ferroelectricity, which demands crystallization in the 10 polar point groups. However, the symmetry requirement for antiferroelectricity is still ambiguous, and polar crystals possessing antiferroelectricity seem contradictory. This work systematically and comprehensively studies the transformation of dipole moments under symmetry operations, using accessible geometric methods and group theory. The results indicate crystals that crystallize in polar point groups 2 (C 2), m (C 1h), mm2 (C 2v), 4 (C 4), 4mm (C 4v), 3m (C 3v), 6 (C 6) and 6mm (C 6v) also possess anti-polar structure and are capable of Kittel-type antiferroelectricity. The anti-polar direction of each point group is also highlighted, which could provide a straightforward guide for antiferroelectric property measurement. Like ferroelectric crystals, antiferroelectric crystals belonging to polar point groups have great potential to become a family of important multifunctional electroactive and optical materials. This contribution refines antiferroelectric theory, will help facilitate and stimulate the discovery and rational design of novel antiferroelectric crystals, and enrich the potential functional applications of antiferroelectric materials.
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Affiliation(s)
- Pai Shan
- Key Laboratory of Optoelectronic Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, People’s Republic of China
| | - Xifa Long
- Key Laboratory of Optoelectronic Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, People’s Republic of China
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14
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Abstract
Conducting polymers (CPs) are conductive materials composed of organic polymers. CPs have excellent properties such as easy synthesis and effortless fabrication, tunable electrical property, high environmental stability, high mechanical and optical properties. These unique properties have attracted researchers to discover a wide variety of uses, such as batteries, solar cells, sensors, supercapacitors, electrochromic devices, and biochemical applications. Although CPs have many limitations in their pristine form, hybridization with other materials overcomes these limitations. Here in this review article, we discuss different CPs based chemosensors for colorimetric and fluorimetric detection and determination of noble metal ions (Ag+, Pd2+, Pt2+/4+, and Au3+) in different environmental, agricultural, and biological samples. Further, the sensing performances of these chemosensors have been compared and discussed. We hope this article will help the readers with the future design of CPs based optical sensor (colorimetric and fluorescent) for detecting noble metal cations.
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Affiliation(s)
- Sara A Alqarni
- Department of Chemistry, College of Science, University of Jeddah, Jeddah, Saudi Arabia
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15
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Lau HS, Lau SK, Soh LS, Hong SU, Gok XY, Yi S, Yong WF. State-of-the-Art Organic- and Inorganic-Based Hollow Fiber Membranes in Liquid and Gas Applications: Looking Back and Beyond. Membranes (Basel) 2022; 12:539. [PMID: 35629866 PMCID: PMC9144028 DOI: 10.3390/membranes12050539] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Revised: 05/19/2022] [Accepted: 05/20/2022] [Indexed: 11/16/2022]
Abstract
The aggravation of environmental problems such as water scarcity and air pollution has called upon the need for a sustainable solution globally. Membrane technology, owing to its simplicity, sustainability, and cost-effectiveness, has emerged as one of the favorable technologies for water and air purification. Among all of the membrane configurations, hollow fiber membranes hold promise due to their outstanding packing density and ease of module assembly. Herein, this review systematically outlines the fundamentals of hollow fiber membranes, which comprise the structural analyses and phase inversion mechanism. Furthermore, illustrations of the latest advances in the fabrication of organic, inorganic, and composite hollow fiber membranes are presented. Key findings on the utilization of hollow fiber membranes in microfiltration (MF), nanofiltration (NF), reverse osmosis (RO), forward osmosis (FO), pervaporation, gas and vapor separation, membrane distillation, and membrane contactor are also reported. Moreover, the applications in nuclear waste treatment and biomedical fields such as hemodialysis and drug delivery are emphasized. Subsequently, the emerging R&D areas, precisely on green fabrication and modification techniques as well as sustainable materials for hollow fiber membranes, are highlighted. Last but not least, this review offers invigorating perspectives on the future directions for the design of next-generation hollow fiber membranes for various applications. As such, the comprehensive and critical insights gained in this review are anticipated to provide a new research doorway to stimulate the future development and optimization of hollow fiber membranes.
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Affiliation(s)
- Hui Shen Lau
- School of Energy and Chemical Engineering, Xiamen University Malaysia, Sepang 43900, Selangor, Malaysia; (H.S.L.); (S.K.L.); (L.S.S.); (S.U.H.); (X.Y.G.)
| | - Siew Kei Lau
- School of Energy and Chemical Engineering, Xiamen University Malaysia, Sepang 43900, Selangor, Malaysia; (H.S.L.); (S.K.L.); (L.S.S.); (S.U.H.); (X.Y.G.)
| | - Leong Sing Soh
- School of Energy and Chemical Engineering, Xiamen University Malaysia, Sepang 43900, Selangor, Malaysia; (H.S.L.); (S.K.L.); (L.S.S.); (S.U.H.); (X.Y.G.)
| | - Seang Uyin Hong
- School of Energy and Chemical Engineering, Xiamen University Malaysia, Sepang 43900, Selangor, Malaysia; (H.S.L.); (S.K.L.); (L.S.S.); (S.U.H.); (X.Y.G.)
| | - Xie Yuen Gok
- School of Energy and Chemical Engineering, Xiamen University Malaysia, Sepang 43900, Selangor, Malaysia; (H.S.L.); (S.K.L.); (L.S.S.); (S.U.H.); (X.Y.G.)
| | - Shouliang Yi
- U.S. Department of Energy, National Energy Technology Laboratory, 626 Cochrans Mill Rd, Pittsburgh, PA 15236, USA;
| | - Wai Fen Yong
- School of Energy and Chemical Engineering, Xiamen University Malaysia, Sepang 43900, Selangor, Malaysia; (H.S.L.); (S.K.L.); (L.S.S.); (S.U.H.); (X.Y.G.)
- College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
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16
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Ramakrishnan S, Kotla SR, Rekis T, Bao JK, Eisele C, Noohinejad L, Tolkiehn M, Paulmann C, Singh B, Verma R, Bag B, Kulkarni R, Thamizhavel A, Singh B, Ramakrishnan S, van Smaalen S. Orthorhombic charge density wave on the tetragonal lattice of EuAl 4. IUCrJ 2022; 9:378-385. [PMID: 35546799 PMCID: PMC9067112 DOI: 10.1107/s2052252522003888] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Accepted: 04/10/2022] [Indexed: 06/15/2023]
Abstract
EuAl4 possesses the BaAl4 crystal structure type with tetragonal symmetry I4/mmm. It undergoes a charge density wave (CDW) transition at T CDW = 145 K and features four consecutive antiferromagnetic phase transitions below 16 K. Here we use single-crystal X-ray diffraction to determine the incommensurately modulated crystal structure of EuAl4 in its CDW state. The CDW is shown to be incommensurate with modulation wave vector q = (0,0,0.1781 (3)) at 70 K. The symmetry of the incommensurately modulated crystal structure is orthorhombic with superspace group Fmmm(00σ)s00, where Fmmm is a subgroup of I4/mmm of index 2. Both the lattice and the atomic coordinates of the basic structure remain tetragonal. Symmetry breaking is entirely due to the modulation wave, where atoms Eu and Al1 have displacements exclusively along a, while the fourfold rotation would require equal displacement amplitudes along a and b. The calculated band structure of the basic structure and interatomic distances in the modulated crystal structure both indicate the Al atoms as the location of the CDW. The tem-per-ature dependence of the specific heat reveals an anomaly at T CDW = 145 K of a magnitude similar to canonical CDW systems. The present discovery of orthorhombic symmetry for the CDW state of EuAl4 leads to the suggestion of monoclinic instead of orthorhombic symmetry for the third AFM state.
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Affiliation(s)
- Sitaram Ramakrishnan
- Laboratory of Crystallography, University of Bayreuth, 95447 Bayreuth, Germany
- Department of Quantum Matter, Hiroshima University, 739-8530, Higashi-Hiroshima, Japan
| | - Surya Rohith Kotla
- Laboratory of Crystallography, University of Bayreuth, 95447 Bayreuth, Germany
| | - Toms Rekis
- Laboratory of Crystallography, University of Bayreuth, 95447 Bayreuth, Germany
| | - Jin-Ke Bao
- Laboratory of Crystallography, University of Bayreuth, 95447 Bayreuth, Germany
- Department of Physics, Materials Genome Institute and International Center for Quantum and Molecular Structures, Shanghai University, Shanghai 200444, People’s Republic of China
| | - Claudio Eisele
- Laboratory of Crystallography, University of Bayreuth, 95447 Bayreuth, Germany
| | - Leila Noohinejad
- P24, PETRA III, Deutsches Elektronen-Synchrotron DESY, Notkestrasse 85, 22607 Hamburg, Germany
| | - Martin Tolkiehn
- P24, PETRA III, Deutsches Elektronen-Synchrotron DESY, Notkestrasse 85, 22607 Hamburg, Germany
| | - Carsten Paulmann
- P24, PETRA III, Deutsches Elektronen-Synchrotron DESY, Notkestrasse 85, 22607 Hamburg, Germany
- Mineralogisch-Petrographisches Institut, Universität Hamburg, 20146 Hamburg, Germany
| | - Birender Singh
- Department of Condensed Matter Physics and Materials Science, Tata Institute of Fundamental Research, Mumbai 400005, India
| | - Rahul Verma
- Department of Condensed Matter Physics and Materials Science, Tata Institute of Fundamental Research, Mumbai 400005, India
| | - Biplab Bag
- Department of Condensed Matter Physics and Materials Science, Tata Institute of Fundamental Research, Mumbai 400005, India
| | - Ruta Kulkarni
- Department of Condensed Matter Physics and Materials Science, Tata Institute of Fundamental Research, Mumbai 400005, India
| | - Arumugam Thamizhavel
- Department of Condensed Matter Physics and Materials Science, Tata Institute of Fundamental Research, Mumbai 400005, India
| | - Bahadur Singh
- Department of Condensed Matter Physics and Materials Science, Tata Institute of Fundamental Research, Mumbai 400005, India
| | - Srinivasan Ramakrishnan
- Department of Condensed Matter Physics and Materials Science, Tata Institute of Fundamental Research, Mumbai 400005, India
| | - Sander van Smaalen
- Laboratory of Crystallography, University of Bayreuth, 95447 Bayreuth, Germany
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17
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Wang J, Wang Y, Chen Y. Inverse Design of Materials by Machine Learning. Materials (Basel) 2022; 15:ma15051811. [PMID: 35269043 PMCID: PMC8911677 DOI: 10.3390/ma15051811] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Revised: 02/13/2022] [Accepted: 02/24/2022] [Indexed: 02/04/2023]
Abstract
It is safe to say that every invention that has changed the world has depended on materials. At present, the demand for the development of materials and the invention or design of new materials is becoming more and more urgent since peoples' current production and lifestyle needs must be changed to help mitigate the climate. Structure-property relationships are a vital paradigm in materials science. However, these relationships are often nonlinear, and the pattern is likely to change with length scales and time scales, posing a huge challenge. With the development of physics, statistics, computer science, etc., machine learning offers the opportunity to systematically find new materials. Especially by inverse design based on machine learning, one can make use of the existing knowledge without attempting mathematical inversion of the relevant integrated differential equation of the electronic structure but by using backpropagation to overcome local minimax traps and perform a fast calculation of the gradient information for a target function concerning the design variable to find the optimizations. The methodologies have been applied to various materials including polymers, photonics, inorganic materials, porous materials, 2-D materials, etc. Different types of design problems require different approaches, for which many algorithms and optimization approaches have been demonstrated in different scenarios. In this mini-review, we will not specifically sum up machine learning methodologies, but will provide a more material perspective and summarize some cut-edging studies.
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Affiliation(s)
- Jia Wang
- School of Space and Environment, Beihang University, Beijing 102206, China;
| | - Yingxue Wang
- National Engineering Laboratory for Risk Perception and Prevention, Beijing 100081, China
- Correspondence:
| | - Yanan Chen
- School of Materials Science and Engineering, Tianjin University, Tianjin 300072, China;
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18
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Grigoriev MV, Solovyov LA, Ruseikina AV, Aleksandrovsky AS, Chernyshev VA, Velikanov DA, Garmonov AA, Molokeev MS, Oreshonkov AS, Shestakov NP, Matigorov AV, Volkova SS, Ostapchuk EA, Kertman AV, Schleid T, Safin DA. Quaternary Selenides EuLnCuSe 3: Synthesis, Structures, Properties and In Silico Studies. Int J Mol Sci 2022; 23:1503. [PMID: 35163428 DOI: 10.3390/ijms23031503] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Revised: 01/20/2022] [Accepted: 01/25/2022] [Indexed: 01/25/2023] Open
Abstract
In this work, we report on the synthesis, in-depth crystal structure studies as well as optical and magnetic properties of newly synthesized heterometallic quaternary selenides of the Eu+2Ln+3Cu+1Se3 composition. Crystal structures of the obtained compounds were refined by the derivative difference minimization (DDM) method from the powder X-ray diffraction data. The structures are found to belong to orthorhombic space groups Pnma (structure type Ba2MnS3 for EuLaCuSe3 and structure type Eu2CuS3 for EuLnCuSe3, where Ln = Sm, Gd, Tb, Dy, Ho and Y) and Cmcm (structure type KZrCuS3 for EuLnCuSe3, where Ln = Tm, Yb and Lu). Space groups Pnma and Cmcm were delimited based on the tolerance factor t', and vibrational spectroscopy additionally confirmed the formation of three structural types. With a decrease in the ionic radius of Ln3+ in the reported structures, the distortion of the (LnCuSe3) layers decreases, and a gradual formation of the more symmetric structure occurs in the sequence Ba2MnS3 → Eu2CuS3 → KZrCuS3. According to magnetic studies, compounds EuLnCuSe3 (Ln = Tb, Dy, Ho and Tm) each exhibit ferrimagnetic properties with transition temperatures ranging from 4.7 to 6.3 K. A negative magnetization effect is observed for compound EuHoCuSe3 at temperatures below 4.8 K. The magnetic properties of the discussed selenides and isostructural sulfides were compared. The direct optical band gaps for EuLnCuSe3, subtracted from the corresponding diffuse reflectance spectra, were found to be 1.87-2.09 eV. Deviation between experimental and calculated band gaps is ascribed to lower d states of Eu2+ in the crystal field of EuLnCuSe3, while anomalous narrowing of the band gap of EuYbCuSe3 is explained by the low-lying charge-transfer state. Ab initio calculations of the crystal structures, elastic properties and phonon spectra of the reported compounds were performed.
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19
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Bersweiler M, Adams MP, Peral I, Kohlbrecher J, Suzuki K, Michels A. Unraveling the magnetic softness in Fe-Ni-B-based nanocrystalline material by magnetic small-angle neutron scattering. IUCrJ 2022; 9:65-72. [PMID: 35059211 PMCID: PMC8733879 DOI: 10.1107/s2052252521010605] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Accepted: 10/13/2021] [Indexed: 06/14/2023]
Abstract
Magnetic small-angle neutron scattering is employed to investigate the magnetic interactions in (Fe0.7Ni0.3)86B14 alloy, a HiB-NANOPERM-type soft magnetic nanocrystalline material, which exhibits an ultrafine microstructure with an average grain size below 10 nm. The neutron data reveal a significant spin-misalignment scattering which is mainly related to the jump of the longitudinal magnetization at internal particle-matrix interfaces. The field dependence of the neutron data can be well described by micromagnetic small-angle neutron scattering theory. In particular, the theory explains the 'clover-leaf-type' angular anisotropy observed in the purely magnetic neutron scattering cross section. The presented neutron data analysis also provides access to the magnetic interaction parameters, such as the exchange-stiffness constant, which plays a crucial role towards the optimization of the magnetic softness of Fe-based nanocrystalline materials.
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Affiliation(s)
- Mathias Bersweiler
- Department of Physics and Materials Science, Université du Luxembourg, 162A avenue de la Faïencerie, L-1511 Luxembourg, Grand Duchy of Luxembourg
| | - Michael P. Adams
- Department of Physics and Materials Science, Université du Luxembourg, 162A avenue de la Faïencerie, L-1511 Luxembourg, Grand Duchy of Luxembourg
| | - Inma Peral
- Department of Physics and Materials Science, Université du Luxembourg, 162A avenue de la Faïencerie, L-1511 Luxembourg, Grand Duchy of Luxembourg
| | - Joachim Kohlbrecher
- Laboratory for Neutron Scattering, ETH Zurich and Paul Scherrer Institut, Villigen PSI 5232, Switzerland
| | - Kiyonori Suzuki
- Department of Materials Science and Engineering, Monash University, Clayton, Victoria 3800, Australia
| | - Andreas Michels
- Department of Physics and Materials Science, Université du Luxembourg, 162A avenue de la Faïencerie, L-1511 Luxembourg, Grand Duchy of Luxembourg
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20
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Zhang T, Doert T, Wang H, Zhang S, Ruck M. Inorganic Synthesis Based on Reactions of Ionic Liquids and Deep Eutectic Solvents. Angew Chem Int Ed Engl 2021; 60:22148-22165. [PMID: 34032351 PMCID: PMC8518931 DOI: 10.1002/anie.202104035] [Citation(s) in RCA: 48] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Indexed: 02/03/2023]
Abstract
Ionic liquids and deep eutectic solvents are of growing interest as solvents for the resource‐efficient synthesis of inorganic materials. This Review covers chemical reactions of various deep eutectic solvents and types of ionic liquids, including metal‐containing ionic liquids, [BF4]−‐ or [PF6]−‐based ionic liquids, basic ionic liquids, and chalcogen‐containing ionic liquids. Cases in which cations, anions, or both are incorporated into the final products are also included. The purpose of this Review is to raise caution about the chemical reactivity of ionic liquids and deep eutectic solvents and to establish a guide for their proper use.
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Affiliation(s)
- Tao Zhang
- Beijing Key Laboratory of Ionic Liquids Clean Process, CAS Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, 100190, Beijing, China.,Innovation Academy for Green Manufacture, Chinese Academy of Sciences, Beijing, 100190, China
| | - Thomas Doert
- Faculty of Chemistry and Food Chemistry, Technische Universität Dresden, 01062, Dresden, Germany
| | - Hui Wang
- Beijing Key Laboratory of Ionic Liquids Clean Process, CAS Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, 100190, Beijing, China.,Innovation Academy for Green Manufacture, Chinese Academy of Sciences, Beijing, 100190, China
| | - Suojiang Zhang
- Beijing Key Laboratory of Ionic Liquids Clean Process, CAS Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, 100190, Beijing, China.,Innovation Academy for Green Manufacture, Chinese Academy of Sciences, Beijing, 100190, China
| | - Michael Ruck
- Faculty of Chemistry and Food Chemistry, Technische Universität Dresden, 01062, Dresden, Germany.,Max Planck Institute for Chemical Physics of Solids, 01187, Dresden, Germany
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21
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Liu H, Chen BQ, Pan YJ, Fu CP, Kankala RK, Wang SB, Chen AZ. Role of supercritical carbon dioxide (scCO 2) in fabrication of inorganic-based materials: a green and unique route. Sci Technol Adv Mater 2021; 22:695-717. [PMID: 34512177 PMCID: PMC8425740 DOI: 10.1080/14686996.2021.1955603] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Revised: 06/29/2021] [Accepted: 07/08/2021] [Indexed: 06/13/2023]
Abstract
In recent times, the supercritical carbon dioxide (scCO2) process has attracted increasing attention in fabricating diverse materials due to the attractive features of environmentally benign nature and economically promising character. Owing to these unique characteristics and high-penetrability, as well as diffusivity conditions of scCO2, this high-pressure technology, with mild operation conditions, cost-effective, and non-toxic, among others, is often applied to fabricate various organic and inorganic-based materials, resulting in the unique crystal architectures (amorphous, crystalline, and heterojunction), tunable architectures (nanoparticles, nanosheets, and aerogels) for diverse applications. In this review, we give an emphasis on the fabrication of various inorganic-based materials, highlighting the recent research on the driving factors for improving the quality of fabrication in scCO2, procedures for production and dispersion in scCO2, as well as common indicators utilized to assess quality and processing ability of materials. Next, we highlight the effects of specific properties of scCO2 towards synthesizing the highly functional inorganic-based nanomaterials. Finally, we summarize this compilation with interesting perspectives, aiming to arouse a more comprehensive utilization of scCO2 to broaden the horizon in exploring the green/eco-friendly processing of such versatile inorganic-based materials. Together, we firmly believe that this compilation endeavors to disclose the latent capability and universal prevalence of scCO2 in the synthesis and processing of inorganic-based materials.
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Affiliation(s)
- Hao Liu
- Institute of Biomaterials and Tissue Engineering, Huaqiao University, Xiamen, P. R. China
- College of Chemical Engineering, Huaqiao University, Xiamen, P. R. China
| | - Biao-Qi Chen
- Institute of Biomaterials and Tissue Engineering, Huaqiao University, Xiamen, P. R. China
- Fujian Provincial Key Laboratory of Biochemical Technology, Huaqiao University, Xiamen, P. R. China
| | - Yu-Jing Pan
- Institute of Biomaterials and Tissue Engineering, Huaqiao University, Xiamen, P. R. China
| | - Chao-Ping Fu
- Institute of Biomaterials and Tissue Engineering, Huaqiao University, Xiamen, P. R. China
- Fujian Provincial Key Laboratory of Biochemical Technology, Huaqiao University, Xiamen, P. R. China
| | - Ranjith Kumar Kankala
- Institute of Biomaterials and Tissue Engineering, Huaqiao University, Xiamen, P. R. China
- College of Chemical Engineering, Huaqiao University, Xiamen, P. R. China
- Fujian Provincial Key Laboratory of Biochemical Technology, Huaqiao University, Xiamen, P. R. China
| | - Shi-Bin Wang
- Institute of Biomaterials and Tissue Engineering, Huaqiao University, Xiamen, P. R. China
- Fujian Provincial Key Laboratory of Biochemical Technology, Huaqiao University, Xiamen, P. R. China
| | - Ai-Zheng Chen
- Institute of Biomaterials and Tissue Engineering, Huaqiao University, Xiamen, P. R. China
- College of Chemical Engineering, Huaqiao University, Xiamen, P. R. China
- Fujian Provincial Key Laboratory of Biochemical Technology, Huaqiao University, Xiamen, P. R. China
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22
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Vaknin U, Sherman D, Gorfman S. Geometrical prediction of cleavage planes in crystal structures. IUCrJ 2021; 8:793-804. [PMID: 34584740 PMCID: PMC8420770 DOI: 10.1107/s2052252521007272] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Accepted: 07/13/2021] [Indexed: 05/19/2023]
Abstract
Cleavage is the ability of single crystals to split easily along specifically oriented planes. This phenomenon is of great interest for materials' scientists. Acquiring the data regarding cleavage is essential for the understanding of brittle fracture, plasticity and strength, as well as for the prevention of catastrophic device failures. Unfortunately, theoretical calculations of cleavage energy are demanding and often unsuitable for high-throughput searches of cleavage planes in arbitrary crystal structures. A simplified geometrical approach (GALOCS = gaps locations in crystal structures) is suggested for predicting the most promising cleavage planes. GALOCS enumerates all the possible reticular lattice planes and calculates the plane-average electron density as a function of the position of the planes in the unit cell. The assessment of the cleavage ability of the planes is based on the width and depth of planar gaps in crystal structures, which appear when observing the planes lengthwise. The method is demonstrated on two-dimensional graphene and three-dimensional silicon, quartz and LiNbO3 structures. A summary of planar gaps in a few more inorganic crystal structures is also presented.
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Affiliation(s)
- Uriel Vaknin
- Department of Materials Science and Engineering, Tel Aviv University, Wolfson Building for Mechanical Engineering, Tel Aviv, 6997801, Israel
| | - Dov Sherman
- Department of Materials Science and Engineering, Tel Aviv University, Wolfson Building for Mechanical Engineering, Tel Aviv, 6997801, Israel
- School of Mechanical Engineering, Tel Aviv University, Wolfson Building for Mechanical Engineering, Tel Aviv, 6997801, Israel
| | - Semën Gorfman
- Department of Materials Science and Engineering, Tel Aviv University, Wolfson Building for Mechanical Engineering, Tel Aviv, 6997801, Israel
- Correspondence e-mail:
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23
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Smith ME. Recent progress in solid-state nuclear magnetic resonance of half-integer spin low-γ quadrupolar nuclei applied to inorganic materials. Magn Reson Chem 2021; 59:864-907. [PMID: 33207003 DOI: 10.1002/mrc.5116] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2020] [Revised: 11/12/2020] [Accepted: 11/13/2020] [Indexed: 06/11/2023]
Abstract
An overview is presented of recent progress in the solid-state nuclear magnetic resonance (NMR) observation of low-γ nuclei, with a focus on applications to inorganic materials. The technological and methodological advances in the last 20 years, which have underpinned the increased accessibility of low-γ nuclei for study by solid-state NMR techniques, are summarised, including improvements in hardware, pulse sequences and associated computational methods (e.g., first principles calculations and spectral simulation). Some of the key initial observations from inorganic materials of these nuclei are highlighted along with some recent (most within the last 10 years) illustrations of their application to such materials. A summary of other recent reviews of the study of low-γ nuclei by solid-state NMR is provided so that a comprehensive understanding of what has been achieved to date is available.
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Affiliation(s)
- Mark E Smith
- Vice-Chancellor and President's Office and Department of Chemistry, University of Southampton, Southampton, UK
- Department of Chemistry, Lancaster University, Bailrigg, Lancaster, UK
- Department of Physics, University of Warwick, Coventry, UK
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24
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Mürer FK, Madathiparambil AS, Tekseth KR, Di Michiel M, Cerasi P, Chattopadhyay B, Breiby DW. Orientational mapping of minerals in Pierre shale using X-ray diffraction tensor tomography. IUCrJ 2021; 8:747-756. [PMID: 34584736 PMCID: PMC8420771 DOI: 10.1107/s205225252100587x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Accepted: 06/07/2021] [Indexed: 06/13/2023]
Abstract
Shales have a complex mineralogy with structural features spanning several length scales, making them notoriously difficult to fully understand. Conventional attenuation-based X-ray computed tomography (CT) measures density differences, which, owing to the heterogeneity and sub-resolution features in shales, makes reliable interpretation of shale images a challenging task. CT based on X-ray diffraction (XRD-CT), rather than intensity attenuation, is becoming a well established technique for non-destructive 3D imaging, and is especially suited for heterogeneous and hierarchical materials. XRD patterns contain information about the mineral crystal structure, and crucially also crystallite orientation. Here, we report on the use of orientational imaging using XRD-CT to study crystallite-orientation distributions in a sample of Pierre shale. Diffraction-contrast CT data for a shale sample measured with its bedding-plane normal aligned parallel to a single tomographic axis perpendicular to the incoming X-ray beam are discussed, and the spatial density and orientation distribution of clay minerals in the sample are described. Finally, the scattering properties of highly attenuating inclusions in the shale bulk are studied, which are identified to contain pyrite and clinochlore. A path forward is then outlined for systematically improving the structural description of shales.
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Affiliation(s)
- Fredrik K. Mürer
- PoreLab, Department of Physics, Norwegian University of Science and Technology, Høgskoleringen 5, Trondheim 7491, Norway
| | - Aldritt Scaria Madathiparambil
- PoreLab, Department of Physics, Norwegian University of Science and Technology, Høgskoleringen 5, Trondheim 7491, Norway
| | - Kim Robert Tekseth
- PoreLab, Department of Physics, Norwegian University of Science and Technology, Høgskoleringen 5, Trondheim 7491, Norway
| | - Marco Di Michiel
- ESRF, The European Synchrotron, 71 Avenue des Martyrs, Grenoble 38000, France
| | - Pierre Cerasi
- Petroleum Department, SINTEF Industry, Trondheim 7465, Norway
| | - Basab Chattopadhyay
- PoreLab, Department of Physics, Norwegian University of Science and Technology, Høgskoleringen 5, Trondheim 7491, Norway
| | - Dag W. Breiby
- PoreLab, Department of Physics, Norwegian University of Science and Technology, Høgskoleringen 5, Trondheim 7491, Norway
- Department of Microsystems, University of South-Eastern Norway, Campus Vestfold, Borre 3184, Norway
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25
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Xin J, Basit A, Li S, Danto S, Tjin SC, Wei L. Inorganic Thermoelectric Fibers: A Review of Materials, Fabrication Methods, and Applications. Sensors (Basel) 2021; 21:3437. [PMID: 34069287 DOI: 10.3390/s21103437] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/25/2021] [Revised: 05/12/2021] [Accepted: 05/13/2021] [Indexed: 01/22/2023]
Abstract
Thermoelectric technology can directly harvest the waste heat into electricity, which is a promising field of green and sustainable energy. In this aspect, flexible thermoelectrics (FTE) such as wearable fabrics, smart biosensing, and biomedical electronics offer a variety of applications. Since the nanofibers are one of the important constructions of FTE, inorganic thermoelectric fibers are focused on here due to their excellent thermoelectric performance and acceptable flexibility. Additionally, measurement and microstructure characterizations for various thermoelectric fibers (Bi-Sb-Te, Ag2Te, PbTe, SnSe and NaCo2O4) made by different fabrication methods, such as electrospinning, two-step anodization process, solution-phase deposition method, focused ion beam, and self-heated 3ω method, are detailed. This review further illustrates that some techniques, such as thermal drawing method, result in high performance of fiber-based thermoelectric properties, which can emerge in wearable devices and smart electronics in the near future.
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26
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Ndayishimiye A, Sengul MY, Akbarian D, Fan Z, Tsuji K, Bang SH, van Duin ACT, Randall CA. Dynamics of the Chemically Driven Densification of Barium Titanate Using Molten Hydroxides. Nano Lett 2021; 21:3451-3457. [PMID: 33852297 DOI: 10.1021/acs.nanolett.1c00069] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Molten hydroxides, often used for crystal growth and nanoparticle synthesis, have recently been applied for the single step densification of several inorganic materials under moderate uniaxial pressures and 1000 °C below their usual sintering temperatures. The latter approach, termed cold sintering process (CSP), is a mechanochemically driven process that enables the densification of inorganic materials through a dissolution-precipitation creep mechanism. In this study, we report the main densification mechanisms of BaTiO3 in a NaOH-KOH eutectic mixture. A chemical insight at the atomistic level, investigated by ReaxFF molecular dynamics simulations, offers plausible ionic complex formation scenarios and reactions at the BaTiO3/molten hydroxide interface, enabling the dissolution-precipitation reactions and the subsequent cold sintering of BaTiO3.
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Affiliation(s)
- Arnaud Ndayishimiye
- Materials Research Institute, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
- Department of Materials Science and Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Mert Y Sengul
- Materials Research Institute, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
- Department of Materials Science and Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Dooman Akbarian
- Department of Mechanical Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Zhongming Fan
- Materials Research Institute, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
- Department of Materials Science and Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Kosuke Tsuji
- Materials Research Institute, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
- Department of Materials Science and Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Sun Hwi Bang
- Materials Research Institute, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
- Department of Materials Science and Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Adri C T van Duin
- Materials Research Institute, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
- Department of Materials Science and Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
- Department of Mechanical Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Clive A Randall
- Materials Research Institute, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
- Department of Materials Science and Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
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27
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Wu Y, Wang D, Liu J, Cai H. Review of Interface Passivation of Perovskite Layer. Nanomaterials (Basel) 2021; 11:775. [PMID: 33803757 PMCID: PMC8003181 DOI: 10.3390/nano11030775] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Revised: 03/06/2021] [Accepted: 03/15/2021] [Indexed: 11/16/2022]
Abstract
Perovskite solar cells (PSCs) are the most promising substitute for silicon-based solar cells. However, their power conversion efficiency and stability must be improved. The recombination probability of the photogenerated carriers at each interface in a PSC is much greater than that of the bulk phase. The interface of a perovskite polycrystalline film is considered to be a defect-rich area, which is the main factor limiting the efficiency of a PSC. This review introduces and summarizes practical interface engineering techniques for improving the efficiency and stability of organic-inorganic lead halide PSCs. First, the effect of defects at the interface of the PSCs, the energy level alignment, and the chemical reactions on the efficiency of a PSC are summarized. Subsequently, the latest developments pertaining to a modification of the perovskite layers with different materials are discussed. Finally, the prospect of achieving an efficient PSC with long-term stability through the use of interface engineering is presented.
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Affiliation(s)
| | | | | | - Houzhi Cai
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China; (Y.W.); (D.W.); (J.L.)
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28
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Zaszczyńska A, Gradys A, Sajkiewicz P. Progress in the Applications of Smart Piezoelectric Materials for Medical Devices. Polymers (Basel) 2020; 12:E2754. [PMID: 33266424 PMCID: PMC7700596 DOI: 10.3390/polym12112754] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Revised: 11/19/2020] [Accepted: 11/20/2020] [Indexed: 12/19/2022] Open
Abstract
Smart piezoelectric materials are of great interest due to their unique properties. Piezoelectric materials can transform mechanical energy into electricity and vice versa. There are mono and polycrystals (piezoceramics), polymers, and composites in the group of piezoelectric materials. Recent years show progress in the applications of piezoelectric materials in biomedical devices due to their biocompatibility and biodegradability. Medical devices such as actuators and sensors, energy harvesting devices, and active scaffolds for neural tissue engineering are continually explored. Sensors and actuators from piezoelectric materials can convert flow rate, pressure, etc., to generate energy or consume it. This paper consists of using smart materials to design medical devices and provide a greater understanding of the piezoelectric effect in the medical industry presently. A greater understanding of piezoelectricity is necessary regarding the future development and industry challenges.
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Affiliation(s)
- Angelika Zaszczyńska
- Institute of Fundamental Technological Research, Polish Academy of Sciences, Pawinskiego 5b St., 02-106 Warsaw, Poland; (A.G.); (P.S.)
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29
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Wang W, Liu X, Zheng X, Jin HJ, Li X. Biomineralization: An Opportunity and Challenge of Nanoparticle Drug Delivery Systems for Cancer Therapy. Adv Healthc Mater 2020; 9:e2001117. [PMID: 33043640 DOI: 10.1002/adhm.202001117] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 08/29/2020] [Indexed: 12/12/2022]
Abstract
Biomineralization is a common process in organisms to produce hard biomaterials by combining inorganic ions with biomacromolecules. Multifunctional nanoplatforms are developed based on the mechanism of biomineralization in many biomedical applications. In the past few years, biomineralization-based nanoparticle drug delivery systems for the cancer treatment have gained a lot of research attention due to the advantages including simple preparation, good biocompatibility, degradability, easy modification, versatility, and targeting. In this review, the research trends of biomineralization-based nanoparticle drug delivery systems and their applications in cancer therapy are summarized. This work aims to promote future researches on cancer therapy based on biomineralization. Rational design of nanoparticle drug delivery systems can overcome the bottleneck in the clinical transformation of nanomaterials. At the same time, biomineralization has also provided new research ideas for cancer treatment, i.e., targeted therapy, which has significantly better performance.
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Affiliation(s)
- Weicai Wang
- Collaborative Innovation Center of Tumor Marker Detection Technology Equipment and Diagnosis‐Therapy Integration in Universities of Shandong Shandong Province Key Laboratory of Detection Technology for Tumor Makers School of Chemistry and Chemical Engineering Linyi University Linyi Shandong 276005 China
| | - Xiaofan Liu
- Collaborative Innovation Center of Tumor Marker Detection Technology Equipment and Diagnosis‐Therapy Integration in Universities of Shandong Shandong Province Key Laboratory of Detection Technology for Tumor Makers School of Chemistry and Chemical Engineering Linyi University Linyi Shandong 276005 China
| | - Xiangjiang Zheng
- Collaborative Innovation Center of Tumor Marker Detection Technology Equipment and Diagnosis‐Therapy Integration in Universities of Shandong Shandong Province Key Laboratory of Detection Technology for Tumor Makers School of Chemistry and Chemical Engineering Linyi University Linyi Shandong 276005 China
| | - Hyung Jong Jin
- Department of Bioscience and Biotechnology The University of Suwon Hwaseong Gyeonggi‐Do 18323 Republic of Korea
| | - Xuemei Li
- Collaborative Innovation Center of Tumor Marker Detection Technology Equipment and Diagnosis‐Therapy Integration in Universities of Shandong Shandong Province Key Laboratory of Detection Technology for Tumor Makers School of Chemistry and Chemical Engineering Linyi University Linyi Shandong 276005 China
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30
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Kuzman S, Periša J, Đorđević V, Zeković I, Vukoje I, Antić Ž, Dramićanin MD. Surface Plasmon Enhancement of Eu 3+ Emission Intensity in LaPO 4/Ag Nanoparticles. Materials (Basel) 2020; 13:E3071. [PMID: 32664307 DOI: 10.3390/ma13143071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Revised: 07/01/2020] [Accepted: 07/03/2020] [Indexed: 11/16/2022]
Abstract
A promising way to improve the performance of luminescent materials is to combine them with noble metal nanoparticles. Herein, a set of silver/europium-doped lanthanum orthophosphate (Ag/La0.95Eu0.05PO4) nanostructures with different concentrations of silver nanoparticles were prepared and investigated. The presented overlap between the strongest europium (Eu3+) excitation line and the broad silver nanoparticle surface plasmon resonance makes the combination prospective for coupling. X-ray powder diffraction confirmed the monoclinic monazite structure. The transmission electron microscopy revealed particles with a rod-like shape and ~4 aspect ratio. Photoluminescence spectra show characteristic Eu3+ ion red emission. One of the requirements for an enhanced luminescence effect is the precise control of the distance between the noble metal nanoparticles and the emitter ion. The distance is indirectly varied throughout the change of Ag nanoparticle concentration in the La0.95Eu0.05PO4 host. The emission intensity increases with the increase in Ag nanoparticles up to 0.6 mol %, after which the luminescence decreases due to the nanoparticles’ close packing and aggregation leading to the displacement of La0.95Eu0.05PO4 from the vicinity of the metal particles and reabsorption of the emitted light. The emission intensity of La0.95Eu0.05PO4 increases more than three times when the Eu3+ excitation is supported by the localized surface plasmon resonance in the Ag/La0.95Eu0.05PO4 nanostructures.
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31
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Roth N, Zhu T, Iversen BB. A simple model for vacancy order and disorder in defective half-Heusler systems. IUCrJ 2020; 7:673-680. [PMID: 32695414 PMCID: PMC7340261 DOI: 10.1107/s2052252520005977] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Accepted: 04/30/2020] [Indexed: 06/11/2023]
Abstract
Defective half-Heusler systems X 1-x YZ with large amounts of intrinsic vacancies, such as Nb1-x CoSb, Ti1-x NiSb and V1-x CoSb, are a group of promising thermoelectric materials. Even with high vacancy concentrations they maintain the average half-Heusler crystal structure. These systems show high electrical conductivity but low thermal conductivity arising from an ordered YZ substructure, which conducts electrons, while the large amounts of vacancies in the X substructure effectively scatters phonons. Using electron scattering, it was recently observed that, in addition to Bragg diffraction from the average cubic half-Heusler structure, some of these samples show broad diffuse scattering indicating short-range vacancy order, while other samples show sharp additional peaks indicating long-range vacancy ordering. Here it is shown that both the short- and long-range ordering can be explained using the same simple model, which assumes that vacancies in the X substructure avoid each other. The samples showing long-range vacancy order are in agreement with the predicted ground state of the model, while short-range order samples are quenched high-temperature states of the system. A previous study showed that changes in sample stoichiometry affect whether the short- or long-range vacancy structure is obtained, but the present model suggests that thermal treatment of samples should allow controlling the degree of vacancy order, and thereby the thermal conductivity, without changes in composition. This is important as the composition also dictates the amount of electrical carriers. Independent control of electrical carrier concentration and degree of vacancy order should allow further improvements in the thermoelectric properties of these systems.
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Affiliation(s)
- Nikolaj Roth
- Center for Materials Crystallography, Department of Chemistry, Aarhus University, Aarhus 8000, Denmark
| | - Tiejun Zhu
- State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, People’s Republic of China
| | - Bo B. Iversen
- Center for Materials Crystallography, Department of Chemistry, Aarhus University, Aarhus 8000, Denmark
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32
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Krysiak Y, Marler B, Barton B, Plana-Ruiz S, Gies H, Neder RB, Kolb U. New zeolite-like RUB-5 and its related hydrous layer silicate RUB-6 structurally characterized by electron microscopy. IUCrJ 2020; 7:522-534. [PMID: 32431835 PMCID: PMC7201290 DOI: 10.1107/s2052252520003991] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/20/2019] [Accepted: 03/20/2020] [Indexed: 06/11/2023]
Abstract
This study made use of a recently developed combination of advanced methods to reveal the atomic structure of a disordered nanocrystalline zeolite using exit wave reconstruction, automated diffraction tomography, disorder modelling and diffraction pattern simulation. By applying these methods, it was possible to determine the so far unknown structures of the hydrous layer silicate RUB-6 and the related zeolite-like material RUB-5. The structures of RUB-5 and RUB-6 contain the same dense layer-like building units (LLBUs). In the case of RUB-5, these building units are interconnected via additional SiO4/2 tetrahedra, giving rise to a framework structure with a 2D pore system consisting of intersecting 8-ring channels. In contrast, RUB-6 contains these LLBUs as separate silicate layers terminated by silanol/sil-oxy groups. Both RUB-6 and RUB-5 show stacking disorder with intergrowths of different polymorphs. The unique structure of RUB-6, together with the possibility for an interlayer expansion reaction to form RUB-5, make it a promising candidate for interlayer expansion with various metal sources to include catalytically active reaction centres.
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Affiliation(s)
- Yaşar Krysiak
- Institute of Inorganic Chemistry and Analytical Chemistry, Johannes Gutenberg University, Duesbergweg 10-14, Mainz D-55128, Germany
- Department of Materials and Geoscience, Technische Universität Darmstadt, Petersenstrasse 23, Darmstadt D-64287, Germany
- Department of Structure Analysis of the Institute of Physics, Czech Academy of Sciences, Cukrovarnická 10/112, Prague 162 00, Czech Republic
| | - Bernd Marler
- Departure of Geology, Mineralogy and Geophysics, Ruhr University Bochum, Universitätsstrasse 150, Bochum D-44801, Germany
| | - Bastian Barton
- Institute of Inorganic Chemistry and Analytical Chemistry, Johannes Gutenberg University, Duesbergweg 10-14, Mainz D-55128, Germany
| | - Sergi Plana-Ruiz
- Institute of Inorganic Chemistry and Analytical Chemistry, Johannes Gutenberg University, Duesbergweg 10-14, Mainz D-55128, Germany
- LENS, MIND/IN2UB, Engineer department: Electronics section, Universitat de Barcelona, Martí i Franquès 1, Barcelona 08028, Spain
| | - Hermann Gies
- Departure of Geology, Mineralogy and Geophysics, Ruhr University Bochum, Universitätsstrasse 150, Bochum D-44801, Germany
| | - Reinhard B. Neder
- Chair for Crystallography and Structural Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg, Staudtstrasse 3, Erlangen D-91058, Germany
| | - Ute Kolb
- Institute of Inorganic Chemistry and Analytical Chemistry, Johannes Gutenberg University, Duesbergweg 10-14, Mainz D-55128, Germany
- Department of Materials and Geoscience, Technische Universität Darmstadt, Petersenstrasse 23, Darmstadt D-64287, Germany
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Duverger-Nédellec E, Pautrat A, Kolincio KK, Hervé L, Pérez O. Cascading transitions toward unconventional charge density wave states in the quasi-two-dimensional monophosphate tungsten bronze P 4W 16O 56. IUCrJ 2020; 7:184-192. [PMID: 32148847 PMCID: PMC7055383 DOI: 10.1107/s2052252519016695] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/25/2019] [Accepted: 12/12/2019] [Indexed: 06/10/2023]
Abstract
Single crystals of the m = 8 member of the low-dimensional monophosphate tungsten bronzes (PO2)4(WO3)2m family were grown by chemical vapour transport technique and the high crystalline quality obtained allowed a reinvestigation of the physical and structural properties. Resistivity measurements revealed three anomalies at T C1 = 258 K, T C2 = 245 K and T C3 = 140 K, never observed until now. Parallel X-ray diffraction investigations showed a specific signature associated with three structural transitions, i.e. the appearance of different sets of satellite reflections below T C1, T C2 and T C3. Several harmonics of intense satellite reflections were observed, reflecting the non-sinusoidal nature of the structural modulations and a strong electron-phonon coupling in the material. These transitions could be associated with the formation of three successive unconventional charge density wave states.
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Affiliation(s)
- Elen Duverger-Nédellec
- CRISMAT, ENSICAEN/CNRS UMR6508, 6 Boulevard du Maréchal Juin, Caen, Normandie 14050, France
| | - Alain Pautrat
- CRISMAT, ENSICAEN/CNRS UMR6508, 6 Boulevard du Maréchal Juin, Caen, Normandie 14050, France
| | - Kamil K. Kolincio
- Faculty of Applied Physics and Mathematics, Gdansk University of Technology, Narutowicza 11/12, Gdansk 80-233, Poland
| | - Laurence Hervé
- CRISMAT, ENSICAEN/CNRS UMR6508, 6 Boulevard du Maréchal Juin, Caen, Normandie 14050, France
| | - Olivier Pérez
- CRISMAT, ENSICAEN/CNRS UMR6508, 6 Boulevard du Maréchal Juin, Caen, Normandie 14050, France
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Voufack AB, Kibalin I, Yan Z, Claiser N, Gueddida S, Gillon B, Porcher F, Gukasov A, Sugimoto K, Lecomte C, Dahaoui S, Gillet JM, Souhassou M. Spin resolved electron density study of YTiO 3 in its ferromagnetic phase: signature of orbital ordering. IUCrJ 2019; 6:884-894. [PMID: 31576221 PMCID: PMC6760435 DOI: 10.1107/s2052252519009230] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/05/2019] [Accepted: 06/27/2019] [Indexed: 06/10/2023]
Abstract
The present work reports on the charge and spin density modelling of YTiO3 in its ferromagnetic state (T C = 27 K). Accurate polarized neutron diffraction and high-resolution X-ray diffraction (XRD) experiments were carried out on a single crystal at the ORPHÉE reactor (LLB) and SPRING8 synchrotron source. The experimental data are modelled by the spin resolved pseudo-atomic multipolar model (Deutsch et al., 2012 ▸). The refinement strategy is discussed and the result of this electron density modelling is compared with that from XRD measured at 100 K and with density functional theory calculations. The results show that the spin and charge densities around the Ti atom have lobes directed away from the O atoms, confirming the filling of the t 2g orbitals of the Ti atom. The d xy orbital is less populated than d xz and d yz , which is a sign of a partial lift of degeneracy of the t 2g orbitals. This study confirms the orbital ordering at low temperature (20 K), which is already present in the paramagnetic state above the ferromagnetic transition (100 K).
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Affiliation(s)
- Ariste Bolivard Voufack
- Université de Lorraine, Laboratoire CRM2, UMR CNRS 7036, Boulevard des aiguillettes BP70239, 54506 Vandoeure-les-Nancy, France
- CNRS, Laboratoire CRM2, UMR CNRS 7036, Boulevard des aiguillettes BP70239, 54506 Vandoeure-les-Nancy, France
| | - Iurii Kibalin
- Université de Lorraine, Laboratoire CRM2, UMR CNRS 7036, Boulevard des aiguillettes BP70239, 54506 Vandoeure-les-Nancy, France
- PNPI NRC, Kurcharov Institut, Orlova Rosha, Gatchina, Leningrad region 188300, Russian Federation
| | - Zeyin Yan
- CentraleSupelec, Grande Voie des Vignes, 92295 Chatenay-Malabry Cedex, France
| | - Nicolas Claiser
- Université de Lorraine, Laboratoire CRM2, UMR CNRS 7036, Boulevard des aiguillettes BP70239, 54506 Vandoeure-les-Nancy, France
- CNRS, Laboratoire CRM2, UMR CNRS 7036, Boulevard des aiguillettes BP70239, 54506 Vandoeure-les-Nancy, France
| | - Saber Gueddida
- Université de Lorraine, Laboratoire CRM2, UMR CNRS 7036, Boulevard des aiguillettes BP70239, 54506 Vandoeure-les-Nancy, France
| | - Béatrice Gillon
- LLB, CEA-CNRS, UMR 12, CEA Saclay, 91191 Gif-sur-Yvette Cedex, France
| | - Florence Porcher
- LLB, CEA-CNRS, UMR 12, CEA Saclay, 91191 Gif-sur-Yvette Cedex, France
| | - Arsen Gukasov
- LLB, CEA-CNRS, UMR 12, CEA Saclay, 91191 Gif-sur-Yvette Cedex, France
| | - Kunishisa Sugimoto
- SPring-8, Japan Synchrtron Radiation Research Institut, 1-1-1 Kouto, Sayo, Hyogo 679-5198, Japan
| | - Claude Lecomte
- Université de Lorraine, Laboratoire CRM2, UMR CNRS 7036, Boulevard des aiguillettes BP70239, 54506 Vandoeure-les-Nancy, France
- CNRS, Laboratoire CRM2, UMR CNRS 7036, Boulevard des aiguillettes BP70239, 54506 Vandoeure-les-Nancy, France
| | - Slimane Dahaoui
- Université de Lorraine, Laboratoire CRM2, UMR CNRS 7036, Boulevard des aiguillettes BP70239, 54506 Vandoeure-les-Nancy, France
| | - Jean-Michel Gillet
- SPMS, UMR 8580, CentraleSupelec, Paris Saclay University, 91191 Gif-sur-Yvette, France
| | - Mohamed Souhassou
- Université de Lorraine, Laboratoire CRM2, UMR CNRS 7036, Boulevard des aiguillettes BP70239, 54506 Vandoeure-les-Nancy, France
- CNRS, Laboratoire CRM2, UMR CNRS 7036, Boulevard des aiguillettes BP70239, 54506 Vandoeure-les-Nancy, France
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Jin L, Zhang XM, Dai XF, Wang LY, Liu HY, Liu GD. Screening topological materials with a CsCl-type structure in crystallographic databases. IUCrJ 2019; 6:688-694. [PMID: 31316812 PMCID: PMC6608626 DOI: 10.1107/s2052252519007383] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2019] [Accepted: 05/21/2019] [Indexed: 05/14/2023]
Abstract
CsCl-type materials have many outstanding characteristics, i.e. simple in structure, ease of synthesis and good stability at room temperature, thus are an excellent choice for designing functional materials. Using high-throughput first-principles calculations, a large number of topological semimetals/metals (TMs) were designed from CsCl-type materials found in crystallographic databases and their crystal and electronic structures have been studied. The CsCl-type TMs in this work show rich topological character, ranging from triple nodal points, type-I nodal lines and critical-type nodal lines, to hybrid nodal lines. The TMs identified show clean topological band structures near the Fermi level, which are suitable for experimental investigations and future applications. This work provides a rich data set of TMs with a CsCl-type structure.
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Affiliation(s)
- L. Jin
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300130, People’s Republic of China
| | - X. M. Zhang
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300130, People’s Republic of China
- Correspondence e-mail: ,
| | - X. F. Dai
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300130, People’s Republic of China
| | - L. Y. Wang
- Tianjin Key Laboratory of Low Dimensional Materials Physics and Preparation Technology, School of science, Tianjin University, Tianjin 300354, People’s Republic of China
| | - H. Y. Liu
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300130, People’s Republic of China
| | - G. D. Liu
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300130, People’s Republic of China
- Correspondence e-mail: ,
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Lu T, Tian Y, Studer A, Narayanan N, Li Q, Withers R, Jin L, Mendez-González Y, Peláiz-Barranco A, Yu D, McIntyre GJ, Xu Z, Wei X, Yan H, Liu Y. Symmetry-mode analysis for intuitive observation of structure-property relationships in the lead-free antiferroelectric (1- x)AgNbO 3- xLiTaO 3. IUCrJ 2019; 6:740-750. [PMID: 31316817 PMCID: PMC6608632 DOI: 10.1107/s2052252519007711] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Accepted: 05/28/2019] [Indexed: 06/10/2023]
Abstract
Functional materials are of critical importance to electronic and smart devices. A deep understanding of the structure-property relationship is essential for designing new materials. In this work, instead of utilizing conventional atomic coordinates, a symmetry-mode approach is successfully used to conduct structure refinement of the neutron powder diffraction data of (1-x)AgNbO3-xLiTaO3 (0 ≤ x ≤ 0.09) ceramics. This provides rich structural information that not only clarifies the controversial symmetry assigned to pure AgNbO3 but also explains well the detailed structural evolution of (1-x)AgNbO3-xLiTaO3 (0 ≤ x ≤ 0.09) ceramics, and builds a comprehensive and straightforward relationship between structural distortion and electrical properties. It is concluded that there are four relatively large-amplitude major modes that dominate the distorted Pmc21 structure of pure AgNbO3, namely a Λ3 antiferroelectric mode, a T4+ a - a - c 0 octahedral tilting mode, an H2 a 0 a 0 c +/a 0 a 0 c - octahedral tilting mode and a Γ4- ferroelectric mode. The H2 and Λ3 modes become progressively inactive with increasing x and their destabilization is the driving force behind the composition-driven phase transition between the Pmc21 and R3c phases. This structural variation is consistent with the trend observed in the measured temperature-dependent dielectric properties and polarization-electric field (P-E) hysteresis loops. The mode crystallography applied in this study provides a strategy for optimizing related properties by tuning the amplitudes of the corresponding modes in these novel AgNbO3-based (anti)ferroelectric materials.
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Affiliation(s)
- Teng Lu
- Research School of Chemistry, Australian National University, Canberra, ACT 2601, Australia
| | - Ye Tian
- Research School of Chemistry, Australian National University, Canberra, ACT 2601, Australia
- Electronic Materials Research Laboratory, Xi’an Jiaotong University, Xi’an, Shannxi 710049, People’s Republic of China
- School of Engineering and Materials Science, Queen Mary University of London, London E1 4NS, UK
| | - Andrew Studer
- Australian Nuclear Science and Technology Organisation, New Illawarra Road, Lucas Heights, NSW 2234, Australia
| | - Narendirakumar Narayanan
- Research School of Chemistry, Australian National University, Canberra, ACT 2601, Australia
- Australian Nuclear Science and Technology Organisation, New Illawarra Road, Lucas Heights, NSW 2234, Australia
| | - Qian Li
- Advanced Photon Source, Argonne National Laboratory, Argonne, IL 60439, USA
| | - Ray Withers
- Research School of Chemistry, Australian National University, Canberra, ACT 2601, Australia
| | - Li Jin
- Electronic Materials Research Laboratory, Xi’an Jiaotong University, Xi’an, Shannxi 710049, People’s Republic of China
| | - Y. Mendez-González
- Physics Faculty, Institute of Science and Technology of Materials, Havana University, Cuba
| | - A. Peláiz-Barranco
- Physics Faculty, Institute of Science and Technology of Materials, Havana University, Cuba
| | - Dehong Yu
- Australian Nuclear Science and Technology Organisation, New Illawarra Road, Lucas Heights, NSW 2234, Australia
| | - Garry J. McIntyre
- Australian Nuclear Science and Technology Organisation, New Illawarra Road, Lucas Heights, NSW 2234, Australia
| | - Zhuo Xu
- Electronic Materials Research Laboratory, Xi’an Jiaotong University, Xi’an, Shannxi 710049, People’s Republic of China
| | - Xiaoyong Wei
- Electronic Materials Research Laboratory, Xi’an Jiaotong University, Xi’an, Shannxi 710049, People’s Republic of China
| | - Haixue Yan
- School of Engineering and Materials Science, Queen Mary University of London, London E1 4NS, UK
| | - Yun Liu
- Research School of Chemistry, Australian National University, Canberra, ACT 2601, Australia
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Mansoor H, Harrigan WL, Lehuta KA, Kittilstved KR. Reversible Control of the Mn Oxidation State in SrTiO 3 Bulk Powders. Front Chem 2019; 7:353. [PMID: 31179268 PMCID: PMC6538879 DOI: 10.3389/fchem.2019.00353] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2019] [Accepted: 04/29/2019] [Indexed: 11/18/2022] Open
Abstract
We demonstrate a low-temperature reduction method for exhibiting fine control over the oxidation state of substitutional Mn ions in strontium titanate (SrTiO3) bulk powder. We employ NaBH4 as the chemical reductant that causes significant changes in the oxidation state and oxygen vacancy complexation with Mn2+ dopants at temperatures <350°C where lattice reduction is negligible. At higher reduction temperatures, we also observe the formation of Ti3+ in the lattice by diffuse-reflectance and low-temperature electron paramagnetic resonance (EPR) spectroscopy. In addition to Mn2+, Mn4+, and the Mn2+ complex with an oxygen vacancy, we also observe a sharp resonance in the EPR spectrum of heavily reduced Mn-doped SrTiO3. This sharp signal is tentatively assigned to surface superoxide ion that is formed by the surface electron transfer reaction between Ti3+ and O2. The ability to control the relative amounts of various paramagnetic defects in SrTiO3 provides many possibilities to study in a model system the impact of tunable dopant-defect interactions for spin-based electronic applications or visible-light photocatalysis.
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Affiliation(s)
- Haneen Mansoor
- Department of Chemistry, University of Massachusetts Amherst, Amherst, MA, United States
| | - William L Harrigan
- Department of Chemistry, University of Massachusetts Amherst, Amherst, MA, United States
| | - Keith A Lehuta
- Department of Chemistry, University of Massachusetts Amherst, Amherst, MA, United States
| | - Kevin R Kittilstved
- Department of Chemistry, University of Massachusetts Amherst, Amherst, MA, United States
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38
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Pina S, Ribeiro VP, Marques CF, Maia FR, Silva TH, Reis RL, Oliveira JM. Scaffolding Strategies for Tissue Engineering and Regenerative Medicine Applications. Materials (Basel) 2019; 12:E1824. [PMID: 31195642 PMCID: PMC6600968 DOI: 10.3390/ma12111824] [Citation(s) in RCA: 219] [Impact Index Per Article: 43.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/10/2019] [Revised: 05/31/2019] [Accepted: 06/03/2019] [Indexed: 02/06/2023]
Abstract
During the past two decades, tissue engineering and the regenerative medicine field have invested in the regeneration and reconstruction of pathologically altered tissues, such as cartilage, bone, skin, heart valves, nerves and tendons, and many others. The 3D structured scaffolds and hydrogels alone or combined with bioactive molecules or genes and cells are able to guide the development of functional engineered tissues, and provide mechanical support during in vivo implantation. Naturally derived and synthetic polymers, bioresorbable inorganic materials, and respective hybrids, and decellularized tissue have been considered as scaffolding biomaterials, owing to their boosted structural, mechanical, and biological properties. A diversity of biomaterials, current treatment strategies, and emergent technologies used for 3D scaffolds and hydrogel processing, and the tissue-specific considerations for scaffolding for Tissue engineering (TE) purposes are herein highlighted and discussed in depth. The newest procedures focusing on the 3D behavior and multi-cellular interactions of native tissues for further use for in vitro model processing are also outlined. Completed and ongoing preclinical research trials for TE applications using scaffolds and hydrogels, challenges, and future prospects of research in the regenerative medicine field are also presented.
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Affiliation(s)
- Sandra Pina
- 3B's Research Group, I3Bs-Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco, Guimarães, Portugal.
- ICVS/3B's-PT Government Associate Laboratory, 4805-017 Braga/Guimarães, Portugal.
| | - Viviana P Ribeiro
- 3B's Research Group, I3Bs-Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco, Guimarães, Portugal.
- ICVS/3B's-PT Government Associate Laboratory, 4805-017 Braga/Guimarães, Portugal.
| | - Catarina F Marques
- 3B's Research Group, I3Bs-Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco, Guimarães, Portugal.
- ICVS/3B's-PT Government Associate Laboratory, 4805-017 Braga/Guimarães, Portugal.
| | - F Raquel Maia
- 3B's Research Group, I3Bs-Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco, Guimarães, Portugal.
- ICVS/3B's-PT Government Associate Laboratory, 4805-017 Braga/Guimarães, Portugal.
- The Discoveries Centre for Regenerative and Precision Medicine, Headquarters at University of Minho, Avepark, 4805-017 Barco, Guimarães, Portugal.
| | - Tiago H Silva
- 3B's Research Group, I3Bs-Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco, Guimarães, Portugal.
- ICVS/3B's-PT Government Associate Laboratory, 4805-017 Braga/Guimarães, Portugal.
| | - Rui L Reis
- 3B's Research Group, I3Bs-Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco, Guimarães, Portugal.
- ICVS/3B's-PT Government Associate Laboratory, 4805-017 Braga/Guimarães, Portugal.
- The Discoveries Centre for Regenerative and Precision Medicine, Headquarters at University of Minho, Avepark, 4805-017 Barco, Guimarães, Portugal.
| | - J Miguel Oliveira
- 3B's Research Group, I3Bs-Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco, Guimarães, Portugal.
- ICVS/3B's-PT Government Associate Laboratory, 4805-017 Braga/Guimarães, Portugal.
- The Discoveries Centre for Regenerative and Precision Medicine, Headquarters at University of Minho, Avepark, 4805-017 Barco, Guimarães, Portugal.
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Dippel AC, Roelsgaard M, Boettger U, Schneller T, Gutowski O, Ruett U. Local atomic structure of thin and ultrathin films via rapid high-energy X-ray total scattering at grazing incidence. IUCrJ 2019; 6:290-298. [PMID: 30867926 PMCID: PMC6400183 DOI: 10.1107/s2052252519000514] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2018] [Accepted: 01/09/2019] [Indexed: 05/08/2023]
Abstract
Atomic pair distribution function (PDF) analysis is the most powerful technique to study the structure of condensed matter on the length scale from short- to long-range order. Today, the PDF approach is an integral part of research on amorphous, nanocrystalline and disordered materials from bulk to nanoparticle size. Thin films, however, demand specific experimental strategies for enhanced surface sensitivity and sophisticated data treatment to obtain high-quality PDF data. The approach described here is based on the surface high-energy X-ray diffraction technique applying photon energies above 60 keV at grazing incidence. In this way, reliable PDFs were extracted from films of thicknesses down to a few nanometres. Compared with recently published reports on thin-film PDF analysis from both transmission and grazing-incidence geometries, this work brought the minimum detectable film thickness down by about a factor of ten. Depending on the scattering power of the sample, the data acquisition on such ultrathin films can be completed within fractions of a second. Hence, the rapid-acquisition grazing-incidence PDF method is a major advancement in thin-film technology that opens unprecedented possibilities for in situ and operando PDF studies in complex sample environments. By uncovering how the structure of a layered material on a substrate evolves and transforms in terms of local and average ordering, this technique offers new opportunities for understanding processes such as nucleation, growth, morphology evolution, crystallization and the related kinetics on the atomic level and in real time.
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Affiliation(s)
- Ann-Christin Dippel
- Deutsches Elektronen-Synchrotron DESY, Notkestraße 85, 22607 Hamburg, Germany
| | - Martin Roelsgaard
- Center for Materials Crystallography, Department of Chemistry, Aarhus University, Langelandsgade 140, 8000 Aarhus C, Denmark
| | - Ulrich Boettger
- Institute for Materials in Electrical Engineering (IWE-2), RWTH Aachen University, Sommerfeldstraße 24, 52074 Aachen, Germany
| | - Theodor Schneller
- Institute for Materials in Electrical Engineering (IWE-2), RWTH Aachen University, Sommerfeldstraße 24, 52074 Aachen, Germany
| | - Olof Gutowski
- Deutsches Elektronen-Synchrotron DESY, Notkestraße 85, 22607 Hamburg, Germany
| | - Uta Ruett
- Advanced Photon Source, Argonne National Laboratory, 9700 S. Cass Avenue, Argonne, IL 60439, USA
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Wu M, Han Y, Bouhemadou A, Cheng Z, Khenata R, Kuang M, Wang X, Yang T, Yuan H, Wang X. Site preference and tetragonal distortion in palladium-rich Heusler alloys. IUCrJ 2019; 6:218-225. [PMID: 30867919 PMCID: PMC6400188 DOI: 10.1107/s2052252518017578] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/25/2018] [Accepted: 12/12/2018] [Indexed: 06/09/2023]
Abstract
In this work, two kinds of competition between different Heusler structure types are considered, one is the competition between XA and L21 structures based on the cubic system of full-Heusler alloys, Pd2 YZ (Y = Co, Fe, Mn; Z = B, Al, Ga, In, Tl, Si, Ge, Sn, Pb, P, As, Sb). Most alloys prefer the L21 structure; that is, Pd atoms tend to occupy the a (0, 0, 0) and c (0.5, 0.5, 0.5) Wyckoff sites, the Y atom is generally located at site b (0.25, 0.25, 0.25), and the main group element Z has a preference for site d (0.75, 0.75, 0.75), meeting the well known site-preference rule. The difference between these two cubic structures in terms of their magnetic and electronic properties is illustrated further by their phonon dispersion and density-of-states curves. The second type of competition that was subjected to systematic study was the competitive mechanism between the L21 cubic system and its L10 tetragonal system. A series of potential tetragonal distortions in cubic full-Heusler alloys (Pd2 YZ) have been predicted in this work. The valley-and-peak structure at, or in the vicinity of, the Fermi level in both spin channels is mainly attributed to the tetragonal ground states according to the density-of-states analysis. ΔE M is defined as the difference between the most stable energy values of the cubic and tetragonal states; the larger the value, the easier the occurrence of tetragonal distortion, and the corresponding tetragonal structure is stable. Compared with the ΔE M values of classic Mn2-based tetragonal Heusler alloys, the ΔE M values of most Pd2CoZ alloys in this study indicate that they can overcome the energy barriers between cubic and tetragonal states, and possess possible tetragonal transformations. The uniform strain has also been taken into consideration to further investigate the tetragonal distortion of these alloys in detail. This work aims to provide guidance for researchers to further explore and study new magnetic functional tetragonal materials among the full-Heusler alloys.
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Affiliation(s)
- Mengxin Wu
- School of Physical Science and Technology, Southwest University, Chongqing 400715, People’s Republic of China
| | - Yilin Han
- School of Physical Science and Technology, Southwest University, Chongqing 400715, People’s Republic of China
| | - A. Bouhemadou
- Laboratory for Developing New Materials and Their Characterization, University Ferhat Abbas Setif 1, Setif 19000, Algeria
| | - Zhenxiang Cheng
- Institute for Superconducting and Electronic Materials (ISEM), University of Wollongong, Wollongong 2500, Australia
| | - R. Khenata
- Laboratoire de Physique Quantique de la Matière et de Modélisation Mathématique (LPQ3M), Université de Mascara, Mascara 29000, Algeria
| | - Minquan Kuang
- School of Physical Science and Technology, Southwest University, Chongqing 400715, People’s Republic of China
| | - Xiangjian Wang
- Applied Physics, Division of Materials Science, Department of Engineering Sciences and Mathematics, Luleå University of Technology, Luleå SE-971 87, Sweden
| | - Tie Yang
- School of Physical Science and Technology, Southwest University, Chongqing 400715, People’s Republic of China
| | - Hongkuan Yuan
- School of Physical Science and Technology, Southwest University, Chongqing 400715, People’s Republic of China
| | - Xiaotian Wang
- School of Physical Science and Technology, Southwest University, Chongqing 400715, People’s Republic of China
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Quintana C, Morshedi M, Wang H, Du J, Cifuentes MP, Humphrey MG. Exceptional Two-Photon Absorption in Alkynylruthenium-Gold Nanoparticle Hybrids. Nano Lett 2019; 19:756-760. [PMID: 30620605 DOI: 10.1021/acs.nanolett.8b03825] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Ruthenium alkynyl "star" complexes with tri(2-thienyl)-, tris(1,2,3-triazolyl)-, or triphenyl-benzene cores stabilize gold nanoparticles (AuNPs). Cyclic voltammetry, transmission electron microscopy, molecular modeling, dynamic light scattering, X-ray photoelectron spectroscopy, and energy-dispersive X-ray spectroscopy studies are consistent with ca. 5 trithienyl- or triazolyl-benzene-cored star complexes decorating the exterior of each AuNP. The ca. 2.5 nm diameter (by transmission electron microscopy) trithienylbenzene-cored gold nanoparticle hybrids are significantly less absorbent than classical Brust nanoparticles stabilized by 1-dodecanethiol; with femtosecond pulsed radiation, they exhibit exceptionally strong saturable absorption and two-photon absorption across the visible range and into the near-infrared region (3 000 000 GM at 500 nm and 46 000 GM at 750 nm; 1 GM is equal to 10-50 cm4 s photon-1).
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Affiliation(s)
- Cristóbal Quintana
- Research School of Chemistry , Australian National University , Canberra , ACT 2601 , Australia
| | - Mahbod Morshedi
- Research School of Chemistry , Australian National University , Canberra , ACT 2601 , Australia
| | - Huan Wang
- Research School of Chemistry , Australian National University , Canberra , ACT 2601 , Australia
| | - Jun Du
- Research School of Chemistry , Australian National University , Canberra , ACT 2601 , Australia
| | - Marie P Cifuentes
- Research School of Chemistry , Australian National University , Canberra , ACT 2601 , Australia
| | - Mark G Humphrey
- Research School of Chemistry , Australian National University , Canberra , ACT 2601 , Australia
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Li CM, Wang XP, Jiao ZH, Zhang YS, Yin XB, Cui XM, Wei YZ. Functionalized Porous Silica-Based Nano/Micro Particles for Environmental Remediation of Hazard Ions. Nanomaterials (Basel) 2019; 9:nano9020247. [PMID: 30759816 PMCID: PMC6409687 DOI: 10.3390/nano9020247] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Revised: 02/01/2019] [Accepted: 02/02/2019] [Indexed: 11/21/2022]
Abstract
The adsorption and separation of hazard metal ions, radioactive nuclides, or minor actinides from wastewater and high-level radioactive waste liquids using functional silica-based nano/micro-particles modified with various inorganic materials or organic groups, has attracted significant attention since the discovery of ordered mesoporous silica-based substrates. Focusing on inorganic and organic modified materials, the synthesis methods and sorption performances for specific ions in aqueous solutions are summarized in this review. Three modification methods for silica-based particles, the direct synthesis method, wetness impregnation method, and layer-by-layer (LBL) deposition, are usually adopted to load inorganic material onto silica-based particles, while the wetness impregnation method is currently used for the preparation of functional silica-based particles modified with organic groups. Generally, the specific synthesis method is employed based on the properties of the loading materials and the silicon-based substrate. Adsorption of specific toxic ions onto modified silica-based particles depends on the properties of the loaded material. The silicon matrix only changes the thermodynamic and mechanical properties of the material, such as the abrasive resistance, dispersibility, and radiation resistance. In this paper, inorganic loads, such as metal phosphates, molybdophosphate, titanate-based materials, and hydrotalcite, in addition to organic loads, such as 1,3-[(2,4-diethylheptylethoxy)oxy]-2,4-crown-6-Calix{4}arene (Calix {4}) arene-R14 and functional 2,6-bis-(5,6-dialkyl-1,2,4-triazin-3-yl)-pyridines(BTP) are reviewed. More specifically, we emphasize on the synthesis methods of such materials, their structures in relation to their capacities, their selectivities for trapping specific ions from either single or multi-component aqueous solutions, and the possible retention mechanisms. Potential candidates for remediation uses are selected based on their sorption capacities and distribution coefficients for target cations and the pH window for an optimum cation capture.
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Affiliation(s)
- Chun Min Li
- School of Resources, Environment and Materials, Guangxi Key Laboratory of Processing for Non-ferrous Metallic and Featured Materials, Guangxi University, Nanning 530004, China.
| | - Xin Peng Wang
- School of Resources, Environment and Materials, Guangxi Key Laboratory of Processing for Non-ferrous Metallic and Featured Materials, Guangxi University, Nanning 530004, China.
| | - Zi Hao Jiao
- School of Resources, Environment and Materials, Guangxi Key Laboratory of Processing for Non-ferrous Metallic and Featured Materials, Guangxi University, Nanning 530004, China.
| | - Yu Sheng Zhang
- School of Resources, Environment and Materials, Guangxi Key Laboratory of Processing for Non-ferrous Metallic and Featured Materials, Guangxi University, Nanning 530004, China.
| | - Xiang Biao Yin
- Laboratory for Advanced Nuclear Energy, Tokyo Institute of Technology, 2-12-1, Ookayama, Meguro-ku, Tokyo 152-8550, Japan.
| | - Xue Min Cui
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China.
| | - Yue Zhou Wei
- School of Resources, Environment and Materials, Guangxi Key Laboratory of Processing for Non-ferrous Metallic and Featured Materials, Guangxi University, Nanning 530004, China.
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43
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Teng F, Hu K, Ouyang W, Fang X. Photoelectric Detectors Based on Inorganic p-Type Semiconductor Materials. Adv Mater 2018; 30:e1706262. [PMID: 29888448 DOI: 10.1002/adma.201706262] [Citation(s) in RCA: 107] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2017] [Revised: 01/18/2018] [Indexed: 05/03/2023]
Abstract
Photoelectric detectors are the central part of modern photodetection systems with numerous commercial and scientific applications. p-Type semiconductor materials play important roles in optoelectronic devices. Photodetectors based on p-type semiconductor materials have attracted a great deal of attention in recent years because of their unique properties. Here, a comprehensive summary of the recent progress mainly on photodetectors based on inorganic p-type semiconductor materials is presented. Various structures, including photoconductors, phototransistors, homojunctions, heterojunctions, p-i-n junctions, and metal-semiconductor junctions of photodetectors based on inorganic p-type semiconductor materials, are discussed and summarized. Perspectives and an outlook, highlighting the promising future directions of this research field, are also given.
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Affiliation(s)
- Feng Teng
- Department of Materials Science, Fudan University, Shanghai, 200433, P. R. China
| | - Kai Hu
- Department of Materials Science, Fudan University, Shanghai, 200433, P. R. China
| | - Weixin Ouyang
- Department of Materials Science, Fudan University, Shanghai, 200433, P. R. China
| | - Xiaosheng Fang
- Department of Materials Science, Fudan University, Shanghai, 200433, P. R. China
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44
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Martino E, Arakcheeva A, Autès G, Pisoni A, Bachmann MD, Modic KA, Helm T, Yazyev OV, Moll PJW, Forró L, Katrych S. Sr 2Pt 8-x As: a layered incommensurately modulated metal with saturated resistivity. IUCrJ 2018; 5:470-477. [PMID: 30002847 PMCID: PMC6038961 DOI: 10.1107/s2052252518007303] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/26/2018] [Accepted: 05/15/2018] [Indexed: 06/08/2023]
Abstract
The high-pressure synthesis and incommensurately modulated structure are reported for the new compound Sr2Pt8-x As, with x = 0.715 (5). The structure consists of Sr2Pt3As layers alternating with Pt-only corrugated grids. Ab initio calculations predict a metallic character with a dominant role of the Pt d electrons. The electrical resistivity (ρ) and Seebeck coefficient confirm the metallic character, but surprisingly, ρ showed a near-flat temperature dependence. This observation fits the description of the Mooij correlation for electrical resistivity in disordered metals, originally developed for statistically distributed point defects. The discussed material has a long-range crystallographic order, but the high concentration of Pt vacancies, incommensurately ordered, strongly influences the electronic conduction properties. This result extends the range of validity of the Mooij correlation to long-range ordered incommensurately modulated vacancies. Motivated by the layered structure, the resistivity anisotropy was measured in a focused-ion-beam micro-fabricated well oriented single crystal. A low resistivity anisotropy indicates that the layers are electrically coupled and conduction channels along different directions are intermixed.
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Affiliation(s)
- Edoardo Martino
- Laboratory of Physics of Complex Matter, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne CH-1015, Switzerland
- Max-Planck-Institute for Chemical Physics of Solids, Dresden 01187, Germany
| | - Alla Arakcheeva
- Laboratory of Physics of Complex Matter, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne CH-1015, Switzerland
| | - Gabriel Autès
- National Centre for Computational Design and Discovery of Novel Materials MARVEL, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne CH-1015, Switzerland
| | - Andrea Pisoni
- Laboratory of Physics of Complex Matter, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne CH-1015, Switzerland
| | - Maja D. Bachmann
- Max-Planck-Institute for Chemical Physics of Solids, Dresden 01187, Germany
| | - Kimberly A. Modic
- Max-Planck-Institute for Chemical Physics of Solids, Dresden 01187, Germany
| | - Toni Helm
- Max-Planck-Institute for Chemical Physics of Solids, Dresden 01187, Germany
| | - Oleg V. Yazyev
- National Centre for Computational Design and Discovery of Novel Materials MARVEL, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne CH-1015, Switzerland
| | - Philip J. W. Moll
- Max-Planck-Institute for Chemical Physics of Solids, Dresden 01187, Germany
| | - László Forró
- Laboratory of Physics of Complex Matter, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne CH-1015, Switzerland
| | - Sergiy Katrych
- Laboratory of Physics of Complex Matter, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne CH-1015, Switzerland
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45
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Van Zele M, Watté J, Hasselmeyer J, Rijckaert H, Vercammen Y, Verstuyft S, Deduytsche D, Debecker DP, Poleunis C, Van Driessche I, De Buysser K. Thickness Characterization Toolbox for Transparent Protective Coatings on Polymer Substrates. Materials (Basel) 2018; 11:E1101. [PMID: 29958401 DOI: 10.3390/ma11071101] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Accepted: 06/26/2018] [Indexed: 11/27/2022]
Abstract
The thickness characterization of transparent protective coatings on functional, transparent materials is often problematic. In this paper, a toolbox to determine the thicknesses of a transparent coating on functional window films is presented. The toolbox consists of a combination of secondary ion mass spectrometry and profilometry and can be transferred to other transparent polymeric materials. A coating was deposited on designed model samples, which were characterized with cross-sectional views in transmission and in scanning/transmission electron microscopy and ellipsometry. The toolbox was then used to assess the thicknesses of the protective coatings on the pilot-scale window films. This coating was synthesized using straightforward sol-gel alkoxide chemistry. The kinetics of the condensation are studied in order to obtain a precursor that allows fast drying and complete condensation after simple heat treatment. The shelf life of this precursor solution was investigated in order to verify its accordance to industrial requirements. Deposition was performed successfully at low temperatures below 100 °C, which makes deposition on polymeric foils possible. By using roll-to-roll coating, the findings of this paper are easily transferrable to industrial scale. The coating was tested for scratch resistance and adhesion. Values for the emissivity (ε) of the films were recorded to justify the use of the films obtained as infrared reflective window films. In this work, it is shown that the toolbox measures similar thicknesses to those measured by electron microscopy and can be used to set a required thickness for protective coatings.
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46
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Nakano A, Sugawara K, Tamura S, Katayama N, Matsubayashi K, Okada T, Uwatoko Y, Munakata K, Nakao A, Sagayama H, Kumai R, Sugimoto K, Maejima N, Machida A, Watanuki T, Sawa H. Pressure-induced coherent sliding-layer transition in the excitonic insulator Ta 2NiSe 5. IUCrJ 2018; 5:158-165. [PMID: 29765605 PMCID: PMC5947720 DOI: 10.1107/s2052252517018334] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/08/2017] [Accepted: 12/22/2017] [Indexed: 06/08/2023]
Abstract
The crystal structure of the excitonic insulator Ta2NiSe5 has been investigated under a range of pressures, as determined by the complementary analysis of both single-crystal and powder synchrotron X-ray diffraction measurements. The monoclinic ambient-pressure excitonic insulator phase II transforms upon warming or under a modest pressure to give the semiconducting C-centred orthorhombic phase I. At higher pressures (i.e. >3 GPa), transformation to the primitive orthorhombic semimetal phase III occurs. This transformation from phase I to phase III is a pressure-induced first-order phase transition, which takes place through coherent sliding between weakly coupled layers. This structural phase transition is significantly influenced by Coulombic interactions in the geometric arrangement between interlayer Se ions. Furthermore, upon cooling, phase III transforms into the monoclinic phase IV, which is analogous to the excitonic insulator phase II. Finally, the excitonic interactions appear to be retained despite the observed layer sliding transition.
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Affiliation(s)
- Akitoshi Nakano
- Department of Applied Physics, Nagoya University, Nagoya, 464-8603, Japan
| | - Kento Sugawara
- Department of Applied Physics, Nagoya University, Nagoya, 464-8603, Japan
| | - Shinya Tamura
- Department of Applied Physics, Nagoya University, Nagoya, 464-8603, Japan
| | - Naoyuki Katayama
- Department of Applied Physics, Nagoya University, Nagoya, 464-8603, Japan
| | | | - Taku Okada
- Institute for Solid State Physics (ISSP), University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8581, Japan
| | - Yoshiya Uwatoko
- Institute for Solid State Physics (ISSP), University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8581, Japan
| | - Kouji Munakata
- Comprehensive Research Organization for Science and Society (CROSS), Tokai, Ibaraki 319-1106, Japan
| | - Akiko Nakao
- Comprehensive Research Organization for Science and Society (CROSS), Tokai, Ibaraki 319-1106, Japan
| | - Hajime Sagayama
- Photon Factory, IMSS, KEK, 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan
| | - Reiji Kumai
- Photon Factory, IMSS, KEK, 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan
| | - Kunihisa Sugimoto
- Japan Synchrotron Radiation Research Institute (JASRI), SPring-8, Hyogo 679-5198, Japan
| | - Naoyuki Maejima
- Synchrotron Radiation Research Center (SRRC), National Institutes for Quantum and Radiological Science and Technology (QST), 1-1-1 Kouto, Sayo, Hyogo 679-5148, Japan
| | - Akihiko Machida
- Synchrotron Radiation Research Center (SRRC), National Institutes for Quantum and Radiological Science and Technology (QST), 1-1-1 Kouto, Sayo, Hyogo 679-5148, Japan
| | - Tetsu Watanuki
- Synchrotron Radiation Research Center (SRRC), National Institutes for Quantum and Radiological Science and Technology (QST), 1-1-1 Kouto, Sayo, Hyogo 679-5148, Japan
| | - Hiroshi Sawa
- Department of Applied Physics, Nagoya University, Nagoya, 464-8603, Japan
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47
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Jog M, Patil R, More Y, Kulkarni M, Moharil S. Preliminary results on the photoluminescence and optically stimulated luminescence in Cu-doped and Ag-doped ZnB 2 X 4 (B = Li, Na, K: X = Cl, Br) compounds. LUMINESCENCE 2017; 33:97-103. [PMID: 28816399 DOI: 10.1002/bio.3377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2017] [Revised: 06/04/2017] [Accepted: 06/08/2017] [Indexed: 11/08/2022]
Abstract
Photoluminescence, and optically stimulated luminescence in ZnB2 X4 (B; Li,Na,K: X; Cl,Br) compounds doped with Cu+ or Ag+ were studied. Double humped emission bands attributable to the activators were observed in all the samples. The observed photoluminescence of Cu+ and Ag+ could be identified with 3d9 4s1 ↔3d10 and 4d9 5s1 ↔5d10 transitions respectively. The longer wavelength band (400-500 nm range) could be attributed to the Cu+ or Ag+ ion replacing alkali ion at the octahedral alkali site whereas short wavelength band (340-400 nm range) is attributed to a Cu or Ag ion at tetrahedral zinc site. The short wavelength band was found to be intense compared with long wavelength and gave an indication that most of the Cu or Ag ions prefered a tetrahedral Zn site compared with the octahedral alkali site. All the samples exhibit optically stimulated luminescence (OSL). The sensitivity was found to be lattice dependent. The lowest sensitivity of about 1% compared with Al2 O3 :C was observed in lithium lattices whereas highest the sensitivity of about 290% was observed in the case of Cu-doped ZnNa2 Br4 .
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Affiliation(s)
- Milind Jog
- Kirti M Doongursee College, Mumbai, India
| | - Rajesh Patil
- Institute of Forensic Science, Civil Lines, Nagpur, India
| | - Yogesh More
- Institute of Forensic Science, Civil Lines, Nagpur, India
| | - Mukund Kulkarni
- Radiological Physics and Advisory Division, Bhabha Atomic Research Centre, Mumbai, India
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48
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Eikeland E, Blichfeld AB, Borup KA, Zhao K, Overgaard J, Shi X, Chen L, Iversen BB. Crystal structure across the β to α phase transition in thermoelectric Cu 2-x Se. IUCrJ 2017; 4:476-485. [PMID: 28875034 PMCID: PMC5571810 DOI: 10.1107/s2052252517005553] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2016] [Accepted: 04/12/2017] [Indexed: 05/21/2023]
Abstract
The crystal structure uniquely imparts the specific properties of a material, and thus provides the starting point for any quantitative understanding of thermoelectric properties. Cu2-x Se is an intensely studied high performing, non-toxic and cheap thermoelectric material, and here for the first time, the average structure of β-Cu2-x Se is reported based on analysis of multi-temperature single-crystal X-ray diffraction data. It consists of Se-Cu layers with additional copper between every alternate layer. The structural changes during the peculiar zT enhancing phase transition mainly consist of changes in the inter-layer distance coupled with subtle Cu migration. Just prior to the transition the structure exhibits strong negative thermal expansion due to the reordering of Cu atoms, when approached from low temperatures. The phase transition is fully reversible and group-subgroup symmetry relations are derived that relate the low-temperature β-phase to the high-temperature α-phase. Weak superstructure reflections are observed and a possible Cu ordering is proposed. The structural rearrangement may have a significant impact on the band structure and the Cu rearrangement may also be linked to an entropy increase. Both factors potentially contribute to the extraordinary zT enhancement across the phase transition.
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Affiliation(s)
- Espen Eikeland
- Center for Materials Crystallography, Department of Chemistry and Interdisciplinary Nanoscience Center (iNANO), Aarhus University, Langelandsgade 140, Aarhus 8000-DK, Denmark
| | - Anders B. Blichfeld
- Center for Materials Crystallography, Department of Chemistry and Interdisciplinary Nanoscience Center (iNANO), Aarhus University, Langelandsgade 140, Aarhus 8000-DK, Denmark
| | - Kasper A. Borup
- Center for Materials Crystallography, Department of Chemistry and Interdisciplinary Nanoscience Center (iNANO), Aarhus University, Langelandsgade 140, Aarhus 8000-DK, Denmark
- National Renewable Energy Laboratory, 15013 Denver W Pkwy, Golden, CO 80401, USA
| | - Kunpeng Zhao
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai 200050, People’s Republic of China
| | - Jacob Overgaard
- Center for Materials Crystallography, Department of Chemistry and Interdisciplinary Nanoscience Center (iNANO), Aarhus University, Langelandsgade 140, Aarhus 8000-DK, Denmark
| | - Xun Shi
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai 200050, People’s Republic of China
| | - Lidong Chen
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai 200050, People’s Republic of China
| | - Bo B. Iversen
- Center for Materials Crystallography, Department of Chemistry and Interdisciplinary Nanoscience Center (iNANO), Aarhus University, Langelandsgade 140, Aarhus 8000-DK, Denmark
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Park WB, Chung J, Jung J, Sohn K, Singh SP, Pyo M, Shin N, Sohn KS. Classification of crystal structure using a convolutional neural network. IUCrJ 2017; 4:486-494. [PMID: 28875035 PMCID: PMC5571811 DOI: 10.1107/s205225251700714x] [Citation(s) in RCA: 57] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2017] [Accepted: 05/15/2017] [Indexed: 05/23/2023]
Abstract
A deep machine-learning technique based on a convolutional neural network (CNN) is introduced. It has been used for the classification of powder X-ray diffraction (XRD) patterns in terms of crystal system, extinction group and space group. About 150 000 powder XRD patterns were collected and used as input for the CNN with no handcrafted engineering involved, and thereby an appropriate CNN architecture was obtained that allowed determination of the crystal system, extinction group and space group. In sharp contrast with the traditional use of powder XRD pattern analysis, the CNN never treats powder XRD patterns as a deconvoluted and discrete peak position or as intensity data, but instead the XRD patterns are regarded as nothing but a pattern similar to a picture. The CNN interprets features that humans cannot recognize in a powder XRD pattern. As a result, accuracy levels of 81.14, 83.83 and 94.99% were achieved for the space-group, extinction-group and crystal-system classifications, respectively. The well trained CNN was then used for symmetry identification of unknown novel inorganic compounds.
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Affiliation(s)
- Woon Bae Park
- Faculty of Nanotechnology and Advanced Materials Engineering, Sejong University, Seoul 143-747, Republic of Korea
| | - Jiyong Chung
- Laboratory of Big-data Applications for Public Sector, Chung-Ang University, 221 Heukseok-dong, Dongjak-gu, Seoul 156-756, Republic of Korea
| | - Jaeyoung Jung
- Laboratory of Big-data Applications for Public Sector, Chung-Ang University, 221 Heukseok-dong, Dongjak-gu, Seoul 156-756, Republic of Korea
| | - Keemin Sohn
- Laboratory of Big-data Applications for Public Sector, Chung-Ang University, 221 Heukseok-dong, Dongjak-gu, Seoul 156-756, Republic of Korea
| | - Satendra Pal Singh
- Faculty of Nanotechnology and Advanced Materials Engineering, Sejong University, Seoul 143-747, Republic of Korea
| | - Myoungho Pyo
- Department of Printed Electronics Engineering, Sunchon National University, Chonnam 540-742 Republic of Korea
| | - Namsoo Shin
- Deep Solution Inc., 2636 Nambusunhwan-ro, Seocho-gu, Seoul 06738, Republic of Korea
| | - Kee-Sun Sohn
- Faculty of Nanotechnology and Advanced Materials Engineering, Sejong University, Seoul 143-747, Republic of Korea
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50
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Rozhdestvenskaya IV, Mugnaioli E, Schowalter M, Schmidt MU, Czank M, Depmeier W, Rosenauer A. The structure of denisovite, a fibrous nanocrystalline polytypic disordered 'very complex' silicate, studied by a synergistic multi-disciplinary approach employing methods of electron crystallography and X-ray powder diffraction. IUCrJ 2017; 4:223-242. [PMID: 28512570 PMCID: PMC5414397 DOI: 10.1107/s2052252517002585] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2016] [Accepted: 02/14/2017] [Indexed: 05/20/2023]
Abstract
Denisovite is a rare mineral occurring as aggregates of fibres typically 200-500 nm diameter. It was confirmed as a new mineral in 1984, but important facts about its chemical formula, lattice parameters, symmetry and structure have remained incompletely known since then. Recently obtained results from studies using microprobe analysis, X-ray powder diffraction (XRPD), electron crystallography, modelling and Rietveld refinement will be reported. The electron crystallography methods include transmission electron microscopy (TEM), selected-area electron diffraction (SAED), high-angle annular dark-field imaging (HAADF), high-resolution transmission electron microscopy (HRTEM), precession electron diffraction (PED) and electron diffraction tomography (EDT). A structural model of denisovite was developed from HAADF images and later completed on the basis of quasi-kinematic EDT data by ab initio structure solution using direct methods and least-squares refinement. The model was confirmed by Rietveld refinement. The lattice parameters are a = 31.024 (1), b = 19.554 (1) and c = 7.1441 (5) Å, β = 95.99 (3)°, V = 4310.1 (5) Å3 and space group P12/a1. The structure consists of three topologically distinct dreier silicate chains, viz. two xonotlite-like dreier double chains, [Si6O17]10-, and a tubular loop-branched dreier triple chain, [Si12O30]12-. The silicate chains occur between three walls of edge-sharing (Ca,Na) octahedra. The chains of silicate tetrahedra and the octahedra walls extend parallel to the z axis and form a layer parallel to (100). Water molecules and K+ cations are located at the centre of the tubular silicate chain. The latter also occupy positions close to the centres of eight-membered rings in the silicate chains. The silicate chains are geometrically constrained by neighbouring octahedra walls and present an ambiguity with respect to their z position along these walls, with displacements between neighbouring layers being either Δz = c/4 or -c/4. Such behaviour is typical for polytypic sequences and leads to disorder along [100]. In fact, the diffraction pattern does not show any sharp reflections with l odd, but continuous diffuse streaks parallel to a* instead. Only reflections with l even are sharp. The diffuse scattering is caused by (100) nano-lamellae separated by stacking faults and twin boundaries. The structure can be described according to the order-disorder (OD) theory as a stacking of layers parallel to (100).
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Affiliation(s)
- Ira V. Rozhdestvenskaya
- Department of Crystallography, Institute of Earth Science, Saint Petersburg State University, University emb. 7/9, St Petersburg 199034, Russian Federation
| | - Enrico Mugnaioli
- Department of Physical Sciences, Earth and Environment, University of Siena, Via Laterino 8, Siena 53100, Italy
- Center for Nanotechnology Innovation@NEST, Istituto Italiano di Tecnologia, Piazza San Silvestro 12, Pisa 56127, Italy
- Correspondence e-mail: ,
| | - Marco Schowalter
- Institute of Solid State Physics, University of Bremen, Otto-Hahn-Allee 1, Bremen D-28359, Germany
| | - Martin U. Schmidt
- Institut für Anorganische und Analytische Chemie, Goethe-Universität, Max-von-Laue-Strasse 7, Frankfurt am Main D-60438, Germany
| | - Michael Czank
- Institute of Geosciences, Kiel University, Olshausenstrasse 40, Kiel D-24098, Germany
| | - Wulf Depmeier
- Institute of Geosciences, Kiel University, Olshausenstrasse 40, Kiel D-24098, Germany
- Correspondence e-mail: ,
| | - Andreas Rosenauer
- Institute of Solid State Physics, University of Bremen, Otto-Hahn-Allee 1, Bremen D-28359, Germany
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