1
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Chen Z, Wang X, Han Z, Zhang S, Pollastri S, Fan Q, Qu Z, Sarker D, Scheu C, Huang M, Cölfen H. Revealing the Formation Mechanism and Optimizing the Synthesis Conditions of Layered Double Hydroxides for the Oxygen Evolution Reaction. Angew Chem Int Ed Engl 2023; 62:e202215728. [PMID: 36588090 DOI: 10.1002/anie.202215728] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 12/27/2022] [Accepted: 12/30/2022] [Indexed: 01/03/2023]
Abstract
Layered double hydroxides (LDHs), whose formation is strongly related to OH- concentration, have attracted significant interest in various fields. However, the effect of the real-time change of OH- concentration on LDHs' formation has not been fully explored due to the unsuitability of the existing synthesis methods for in situ characterization. Here, the deliberately designed combination of NH3 gas diffusion and in situ pH measurement provides a solution to the above problem. The obtained results revealed the formation mechanism and also guided us to synthesize a library of LDHs with the desired attributes in water at room temperature without using any additives. After evaluating their oxygen evolution reaction performance, we found that FeNi-LDH with a Fe/Ni ratio of 25/75 exhibits one of the best performances so far reported.
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Affiliation(s)
- Zongkun Chen
- University of Konstanz, 78457, Konstanz, Germany
| | - Xingkun Wang
- School of Materials Science and Engineering, Ocean University of China, 266100, Qingdao, China
| | - Zhongkang Han
- Fritz-Haber-Institut der Max-Planck-Gesellschaft, 14195, Berlin, Germany
| | - Siyuan Zhang
- Max-Planck-Institut für Eisenforschung GmbH, 40237, Düsseldorf, Germany
| | | | - Qiqi Fan
- University of Konstanz, 78457, Konstanz, Germany
| | - Zhengyao Qu
- Agency for Science, Technology and Research, Singapore, 138634, Singapore
| | - Debalaya Sarker
- Fritz-Haber-Institut der Max-Planck-Gesellschaft, 14195, Berlin, Germany
| | - Christina Scheu
- Max-Planck-Institut für Eisenforschung GmbH, 40237, Düsseldorf, Germany
| | - Minghua Huang
- School of Materials Science and Engineering, Ocean University of China, 266100, Qingdao, China
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2
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Yu J, Qi D, Mäkilä E, Lassila L, Papageorgiou AC, Peurla M, Rosenholm JM, Zhao Z, Vallittu P, Jalkanen S, Jia C, Li J. Small-Molecule-based Supramolecular Plastics Mediated by Liquid-Liquid Phase Separation. Angew Chem Int Ed Engl 2022; 61:e202204611. [PMID: 35929612 PMCID: PMC9804437 DOI: 10.1002/anie.202204611] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Indexed: 01/05/2023]
Abstract
Plastics are one of the most widely used polymeric materials. However, they are often undegradable and non-recyclable due to the very stable covalent bonds of macromolecules, causing environmental pollution and health problems. Here, we report that liquid-liquid phase separation (LLPS) could drive the formation of robust, stable, and sustainable plastics using small molecules. The LLPS process could sequester and concentrate solutes, strengthen the non-covalent association between molecules and produce a bulk material whose property was highly related to the encapsulated water amounts. It was a robust plastic with a remarkable Young's modulus of 139.5 MPa when the water content was low while became adhesive and could instantly self-heal with more absorbed water. Finally, responsiveness enabled the material to be highly recyclable. This work allowed us to understand the LLPS at the molecular level and demonstrated that LLPS is a promising approach to exploring eco-friendly supramolecular plastics that are potential substitutes for conventional polymers.
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Affiliation(s)
- Jingjing Yu
- MediCity Research LaboratoryUniversity of TurkuTykistökatu 620520TurkuFinland
| | - Dawei Qi
- MediCity Research LaboratoryUniversity of TurkuTykistökatu 620520TurkuFinland
| | - Ermei Mäkilä
- Laboratory of Industrial PhysicsDepartment of Physics and AstronomyInstitute of DentistryUniversity of Turku20014TurkuFinland
| | - Lippo Lassila
- Department of Biomaterials Science and Turku Clinical Biomaterials Centre, TCBCUniversity of Turku20014TurkuFinland
| | - Anastassios C. Papageorgiou
- Turku Bioscience CentreUniversity of Turku20521TurkuFinland,Turku Bioscience CentreÅbo Akademi University20521TurkuFinland
| | - Markus Peurla
- Institute of Biomedicine and FICAN West Cancer Research LaboratoriesUniversity of Turku20014TurkuFinland
| | - Jessica M. Rosenholm
- Pharmaceutical Sciences LaboratoryFaculty of Science and EngineeringÅbo Akademi UniversityTykistökatu 620520TurkuFinland
| | - Zhao Zhao
- MediCity Research LaboratoryUniversity of TurkuTykistökatu 620520TurkuFinland
| | - Pekka Vallittu
- Department of Biomaterials Science and Turku Clinical Biomaterials Centre, TCBCUniversity of Turku20014TurkuFinland,City of Turku Welfare DivisionPuolalankatu 520101TurkuFinland
| | - Sirpa Jalkanen
- MediCity Research LaboratoryUniversity of TurkuTykistökatu 620520TurkuFinland
| | - Chunman Jia
- Hainan Provincial Key Laboratory of Fine ChemSchool of Chemical Engineering and TechnologyHainan University570228HaikouChina,One Health InstituteHainan University570228HaikouChina
| | - Jianwei Li
- MediCity Research LaboratoryUniversity of TurkuTykistökatu 620520TurkuFinland,Hainan Provincial Key Laboratory of Fine ChemSchool of Chemical Engineering and TechnologyHainan University570228HaikouChina,One Health InstituteHainan University570228HaikouChina
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3
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Wu J, Wu B, Xiong J, Sun S, Wu P. Entropy‐Mediated Polymer–Cluster Interactions Enable Dramatic Thermal Stiffening Hydrogels for Mechanoadaptive Smart Fabrics. Angew Chem Int Ed Engl 2022; 61:e202204960. [DOI: 10.1002/anie.202204960] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Indexed: 11/12/2022]
Affiliation(s)
- Jia Wu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials College of Chemistry Chemical Engineering and Biotechnology & Center for Advanced Low-dimension Materials Donghua University Shanghai 201620 China
| | - Baohu Wu
- Jülich Centre for Neutron Science (JCNS) at Heinz Maier-Leibnitz Zentrum (MLZ) Forschungszentrum Jülich Lichtenbergstr. 1 85748 Garching Germany
| | - Jiaqing Xiong
- Innovation Center for Textile Science and Technology Donghua University Shanghai 201620 China
| | - Shengtong Sun
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials College of Chemistry Chemical Engineering and Biotechnology & Center for Advanced Low-dimension Materials Donghua University Shanghai 201620 China
| | - Peiyi Wu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials College of Chemistry Chemical Engineering and Biotechnology & Center for Advanced Low-dimension Materials Donghua University Shanghai 201620 China
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4
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Yu J, Qi D, Mäkilä E, Lassila L, Papageorgiou A, Peurla M, Rosenholm J, Zhao Z, Vallittu P, Jalkanen S, Jia C, Li J. Small Molecule‐based Supramolecular Plastics Mediated by Liquid‐Liquid Phase Separation. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202204611] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Jingjing Yu
- University of Turku: Turun Yliopisto MediCity FINLAND
| | - Dawei Qi
- University of Turku Faculty of Medicine: Turun yliopisto Laaketieteellinen tiedekunta MediCity Research Laboratory FINLAND
| | - Ermei Mäkilä
- University of Turku Faculty of Mathematics and Natural Sciences: Turun yliopiston luonnontieteiden ja tekniikan tiedekunta Department of Physics and Astronomy FINLAND
| | - Lippo Lassila
- University of Turku: Turun Yliopisto Department of Biomaterials Science and Turku Clinical Biomaterials Centre FINLAND
| | | | - Markus Peurla
- University of Turku: Turun Yliopisto Institute of Biomedicine and FICAN West Cancer Research Laboratories FINLAND
| | - Jessica Rosenholm
- Abo Akademi University: Abo Akademi Pharmaceutical Sciences Laboratory, Faculty of Science and Engineering FINLAND
| | - Zhao Zhao
- University of Turku: Turun Yliopisto MediCity Research Laboratory FINLAND
| | - Pekka Vallittu
- University of Turku: Turun Yliopisto Department of Biomaterials Science and Turku Clinical Biomaterials Centre FINLAND
| | - Sirpa Jalkanen
- University of Turku: Turun Yliopisto MediCity Research Laboratory FINLAND
| | - Chunman Jia
- Hainan University School of Chemical Engineering and Technology FINLAND
| | - Jianwei Li
- Turun Yliopisto MediCity Research Laboratory Tykistökatu 6 A 20520 Turku FINLAND
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5
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Wu J, Wu B, Xiong J, Sun S, Wu P. Entropy‐Mediated Polymer‐Cluster Interactions Enable Dramatic Thermal Stiffening Hydrogels for Mechanoadaptive Smart Fabrics. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202204960] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Jia Wu
- Donghua University Chemistry CHINA
| | - Baohu Wu
- Forschungszentrum Julich ICG: Forschungszentrum Julich GmbH JCNS GERMANY
| | - Jiaqing Xiong
- Donghua University Innovation Center for Textile Science and Technology CHINA
| | | | - Peiyi Wu
- Fudan University Department of Macromolecular Science Handan Road 220 200433 Shanghai CHINA
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6
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Yu Y, Mu Z, Jin B, Liu Z, Tang R. Organic–Inorganic Copolymerization for a Homogenous Composite without an Interphase Boundary. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201913828] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Yadong Yu
- Department of ChemistryZhejiang University Hangzhou Zhejiang 310027 China
| | - Zhao Mu
- Department of ChemistryZhejiang University Hangzhou Zhejiang 310027 China
| | - Biao Jin
- Department of ChemistryZhejiang University Hangzhou Zhejiang 310027 China
| | - Zhaoming Liu
- Department of ChemistryZhejiang University Hangzhou Zhejiang 310027 China
| | - Ruikang Tang
- Department of ChemistryZhejiang University Hangzhou Zhejiang 310027 China
- State Key Laboratory for Silicon MaterialsZhejiang University Hangzhou Zhejiang 310027 China
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7
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Yu Y, Mu Z, Jin B, Liu Z, Tang R. Organic-Inorganic Copolymerization for a Homogenous Composite without an Interphase Boundary. Angew Chem Int Ed Engl 2019; 59:2071-2075. [PMID: 31777138 DOI: 10.1002/anie.201913828] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Revised: 11/21/2019] [Indexed: 12/12/2022]
Abstract
Ionic oligomers and their crosslinking implies a possibility to produce novel organic-inorganic composites by copolymerization. Using organic acrylamide monomers and inorganic calcium phosphate oligomers as precursors, uniformly structured polyacrylamide (PAM)-calcium phosphate copolymer is prepared by an organic-inorganic copolymerization. In contrast to the previous PAM-based composites by mixing inorganic components into polymers, the copolymerized material has no interphase boundary owing to the homogenous incorporation of the organic and inorganic units at molecular level, resulting in a complete and continuous hybrid network. The participation of the ionic binding effect in the crosslinking process can substantially improve the mechanical strength; the copolymer can reach a modulus and hardness of 35.14±1.91 GPa and 1.34±0.09 GPa, respectively, which are far superior to any other PAM-based composites.
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Affiliation(s)
- Yadong Yu
- Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang, 310027, China
| | - Zhao Mu
- Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang, 310027, China
| | - Biao Jin
- Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang, 310027, China
| | - Zhaoming Liu
- Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang, 310027, China
| | - Ruikang Tang
- Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang, 310027, China.,State Key Laboratory for Silicon Materials, Zhejiang University, Hangzhou, Zhejiang, 310027, China
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8
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Affiliation(s)
- Huachuan Du
- Soft Materials LaboratoryInstitute of MaterialsEcole Polytechnique Fédérale de Lausanne (EPFL) 1015 Lausanne Schweiz
| | - Esther Amstad
- Soft Materials LaboratoryInstitute of MaterialsEcole Polytechnique Fédérale de Lausanne (EPFL) 1015 Lausanne Schweiz
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9
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Du H, Amstad E. Water: How Does It Influence the CaCO 3 Formation? Angew Chem Int Ed Engl 2019; 59:1798-1816. [PMID: 31081984 DOI: 10.1002/anie.201903662] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Indexed: 11/11/2022]
Abstract
Nature produces biomineral-based materials with a fascinating set of properties using only a limited number of elements. This set of properties is obtained by closely controlling the structure and local composition of the biominerals. We are far from achieving the same degree of control over the properties of synthetic biomineral-based composites. One reason for this inferior control is our incomplete understanding of the influence of the synthesis conditions and additives on the structure and composition of the forming biominerals. In this Review, we provide an overview of the current understanding of the influence of synthesis conditions and additives during different formation stages of CaCO3 , one of the most abundant biominerals, on the structure, composition, and properties of the resulting CaCO3 crystals. In addition, we summarize currently known means to tune these parameters. Throughout the Review, we put special emphasis on the role of water in mediating the formation of CaCO3 and thereby influencing its structure and properties, an often overlooked aspect that is of high relevance.
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Affiliation(s)
- Huachuan Du
- Soft Materials Laboratory, Institute of Materials, Ecole Polytechnique Fédérale de Lausanne (EPFL), 1015, Lausanne, Switzerland
| | - Esther Amstad
- Soft Materials Laboratory, Institute of Materials, Ecole Polytechnique Fédérale de Lausanne (EPFL), 1015, Lausanne, Switzerland
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10
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Qu G, Li Y, Yu Y, Huang Y, Zhang W, Zhang H, Liu Z, Kong T. Spontaneously Regenerative Tough Hydrogels. Angew Chem Int Ed Engl 2019; 58:10951-10955. [DOI: 10.1002/anie.201904932] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2019] [Revised: 05/24/2019] [Indexed: 01/14/2023]
Affiliation(s)
- Gang Qu
- Guangdong Key Laboratory for Biomedical Measurements and Ultrasound ImagingDepartment of Biomedical EngineeringSchool of MedicineShenzhen University Shenzhen 518060 China
| | - Yang Li
- Department of Gastrointestinal SurgeryShenzhen People's, HospitalSecond Clinical Medical College of Jinan UniversityFirst Affiliated Hospital of Southern University of Science and Technology Shenzhen 518020 China
| | - Yafeng Yu
- Guangdong Key Laboratory for Biomedical Measurements and Ultrasound ImagingDepartment of Biomedical EngineeringSchool of MedicineShenzhen University Shenzhen 518060 China
| | - Yuxing Huang
- School of Materials Science and EngineeringNanchang University Nanchang Jiangxi 330031 China
| | - Wei Zhang
- Guangdong Key Laboratory for Biomedical Measurements and Ultrasound ImagingDepartment of Biomedical EngineeringSchool of MedicineShenzhen University Shenzhen 518060 China
| | - Han Zhang
- Shenzhen Engineering Laboratory of Phosphorene and OptoelectronicsCollege of Optoelectronic EngineeringShenzhen University Shenzhen 518060 China
| | - Zhou Liu
- College of Chemistry and Environmental EngineeringShenzhen University Shenzhen Guangdong 518060 China
| | - Tiantian Kong
- Guangdong Key Laboratory for Biomedical Measurements and Ultrasound ImagingDepartment of Biomedical EngineeringSchool of MedicineShenzhen University Shenzhen 518060 China
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11
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Qu G, Li Y, Yu Y, Huang Y, Zhang W, Zhang H, Liu Z, Kong T. Spontaneously Regenerative Tough Hydrogels. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201904932] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Gang Qu
- Guangdong Key Laboratory for Biomedical Measurements and Ultrasound ImagingDepartment of Biomedical EngineeringSchool of MedicineShenzhen University Shenzhen 518060 China
| | - Yang Li
- Department of Gastrointestinal SurgeryShenzhen People's, HospitalSecond Clinical Medical College of Jinan UniversityFirst Affiliated Hospital of Southern University of Science and Technology Shenzhen 518020 China
| | - Yafeng Yu
- Guangdong Key Laboratory for Biomedical Measurements and Ultrasound ImagingDepartment of Biomedical EngineeringSchool of MedicineShenzhen University Shenzhen 518060 China
| | - Yuxing Huang
- School of Materials Science and EngineeringNanchang University Nanchang Jiangxi 330031 China
| | - Wei Zhang
- Guangdong Key Laboratory for Biomedical Measurements and Ultrasound ImagingDepartment of Biomedical EngineeringSchool of MedicineShenzhen University Shenzhen 518060 China
| | - Han Zhang
- Shenzhen Engineering Laboratory of Phosphorene and OptoelectronicsCollege of Optoelectronic EngineeringShenzhen University Shenzhen 518060 China
| | - Zhou Liu
- College of Chemistry and Environmental EngineeringShenzhen University Shenzhen Guangdong 518060 China
| | - Tiantian Kong
- Guangdong Key Laboratory for Biomedical Measurements and Ultrasound ImagingDepartment of Biomedical EngineeringSchool of MedicineShenzhen University Shenzhen 518060 China
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12
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Rodygin KS, Werner I, Ananikov VP. A Green and Sustainable Route to Carbohydrate Vinyl Ethers for Accessing Bioinspired Materials with a Unique Microspherical Morphology. CHEMSUSCHEM 2018; 11:292-298. [PMID: 28898575 DOI: 10.1002/cssc.201701489] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2017] [Revised: 09/07/2017] [Indexed: 06/07/2023]
Abstract
Synthesizing chemicals and materials from renewable sources is one of the main aims of modern science. Carbohydrates represent excellent renewable natural raw materials that are ecofriendly, inexpensive, and biologically compatible. A green procedure has been developed for the vinylation of carbohydrates by using readily available calcium carbide. Various carbohydrates were utilized as starting materials, resulting in mono-, di-, and tetravinyl ethers in high to excellent yields (81-92 %). The synthesized biobased vinyl ethers were utilized as monomers in free radical and cationic polymerizations. A unique combination of a smooth surface and intrinsic microcompartments was achieved in the synthesized materials. Two types of biobased materials were prepared involving microspheres and intrinsic hollow compartments in polymers. Scanning electron microscopy with built-in ion beam cutting was applied to reveal the spatial hierarchical structures in 3D space.
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Affiliation(s)
- Konstantin S Rodygin
- Saint Petersburg State University, Universitetskii prospect, 26, Petergof, Russia
| | - Irina Werner
- Saint Petersburg State University, Universitetskii prospect, 26, Petergof, Russia
| | - Valentine P Ananikov
- Saint Petersburg State University, Universitetskii prospect, 26, Petergof, Russia
- N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospect, 47, Moscow, Russia
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13
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Cao J, Lu C, Zhuang J, Liu M, Zhang X, Yu Y, Tao Q. Multiple Hydrogen Bonding Enables the Self-Healing of Sensors for Human-Machine Interactions. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201704217] [Citation(s) in RCA: 66] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Jie Cao
- State Key Laboratory of Polymer Materials Engineering; Polymer Research Institute of Sichuan University; Chengdu 610065 China
| | - Canhui Lu
- State Key Laboratory of Polymer Materials Engineering; Polymer Research Institute of Sichuan University; Chengdu 610065 China
| | - Jian Zhuang
- College of Computer and Software; Sichuan University Jincheng College; Chengdu 610065 China
| | - Manxiao Liu
- College of Electronics and Information Engineering; Sichuan University; Chengdu 610065 China
| | - Xinxing Zhang
- State Key Laboratory of Polymer Materials Engineering; Polymer Research Institute of Sichuan University; Chengdu 610065 China
| | - Yanmei Yu
- College of Electronics and Information Engineering; Sichuan University; Chengdu 610065 China
| | - Qingchuan Tao
- College of Electronics and Information Engineering; Sichuan University; Chengdu 610065 China
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14
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Cao J, Lu C, Zhuang J, Liu M, Zhang X, Yu Y, Tao Q. Multiple Hydrogen Bonding Enables the Self-Healing of Sensors for Human-Machine Interactions. Angew Chem Int Ed Engl 2017; 56:8795-8800. [DOI: 10.1002/anie.201704217] [Citation(s) in RCA: 320] [Impact Index Per Article: 45.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2017] [Indexed: 11/10/2022]
Affiliation(s)
- Jie Cao
- State Key Laboratory of Polymer Materials Engineering; Polymer Research Institute of Sichuan University; Chengdu 610065 China
| | - Canhui Lu
- State Key Laboratory of Polymer Materials Engineering; Polymer Research Institute of Sichuan University; Chengdu 610065 China
| | - Jian Zhuang
- College of Computer and Software; Sichuan University Jincheng College; Chengdu 610065 China
| | - Manxiao Liu
- College of Electronics and Information Engineering; Sichuan University; Chengdu 610065 China
| | - Xinxing Zhang
- State Key Laboratory of Polymer Materials Engineering; Polymer Research Institute of Sichuan University; Chengdu 610065 China
| | - Yanmei Yu
- College of Electronics and Information Engineering; Sichuan University; Chengdu 610065 China
| | - Qingchuan Tao
- College of Electronics and Information Engineering; Sichuan University; Chengdu 610065 China
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15
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Sun S, Gebauer D, Cölfen H. Ausrichtung amorpher Eisenoxid-Cluster: ein nichtklassischer Mechanismus für die Magnetitbildung. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201610275] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Shengtong Sun
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials; College of Chemistry, Chemical Engineering and Biotechnology; Center for Advanced Low-Dimension Materials; Donghua University; Shanghai 201620 China
| | - Denis Gebauer
- Physikalische Chemie; Universität Konstanz; Universitätsstraße 10 78457 Konstanz Deutschland
| | - Helmut Cölfen
- Physikalische Chemie; Universität Konstanz; Universitätsstraße 10 78457 Konstanz Deutschland
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16
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Sun S, Gebauer D, Cölfen H. Alignment of Amorphous Iron Oxide Clusters: A Non-Classical Mechanism for Magnetite Formation. Angew Chem Int Ed Engl 2017; 56:4042-4046. [PMID: 28252244 DOI: 10.1002/anie.201610275] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2016] [Revised: 01/26/2017] [Indexed: 11/05/2022]
Abstract
Despite numerous studies on the nucleation and crystallization of iron (oxyhydr)oxides, the roles of species developing during the early stages, especially primary clusters and intermediate amorphous particles, are still poorly understood. Herein, both ligand-free and ligand-protected amorphous iron oxide (AIO) clusters (<2 nm) were synthesized as precursors for magnetite formation. Thermal annealing can crystallize the clusters into magnetite particles, and AIO bulk phases with domains of pre-aligned clusters are found to be direct precursors to crystals, suggesting a non-classical aggregation-based pathway that differs from the reported oriented attachment or particle accretion mechanisms.
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Affiliation(s)
- Shengtong Sun
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Chemistry, Chemical Engineering and Biotechnology, Center for Advanced Low-Dimension Materials, Donghua University, Shanghai, 201620, China
| | - Denis Gebauer
- Physical Chemistry, University of Konstanz, Universitätsstrasse 10, 78457, Konstanz, Germany
| | - Helmut Cölfen
- Physical Chemistry, University of Konstanz, Universitätsstrasse 10, 78457, Konstanz, Germany
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17
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Cantaert B, Kuo D, Matsumura S, Nishimura T, Sakamoto T, Kato T. Use of Amorphous Calcium Carbonate for the Design of New Materials. Chempluschem 2016; 82:107-120. [DOI: 10.1002/cplu.201600457] [Citation(s) in RCA: 57] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2016] [Revised: 11/11/2016] [Indexed: 11/09/2022]
Affiliation(s)
- Bram Cantaert
- Department of Chemistry and Biotechnology; School of Engineering; The University of Tokyo; Hongo, Bunkyo-ku Tokyo 113-8656 Japan
| | - David Kuo
- Department of Chemistry and Biotechnology; School of Engineering; The University of Tokyo; Hongo, Bunkyo-ku Tokyo 113-8656 Japan
| | - Shunichi Matsumura
- Department of Chemistry and Biotechnology; School of Engineering; The University of Tokyo; Hongo, Bunkyo-ku Tokyo 113-8656 Japan
| | - Tatsuya Nishimura
- Department of Chemistry and Biotechnology; School of Engineering; The University of Tokyo; Hongo, Bunkyo-ku Tokyo 113-8656 Japan
| | - Takeshi Sakamoto
- Department of Chemistry and Biotechnology; School of Engineering; The University of Tokyo; Hongo, Bunkyo-ku Tokyo 113-8656 Japan
| | - Takashi Kato
- Department of Chemistry and Biotechnology; School of Engineering; The University of Tokyo; Hongo, Bunkyo-ku Tokyo 113-8656 Japan
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