1
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Li X, Fang YG, Bai Q, Jiang J, Zeng XC, Francisco JS, Zhu C, Fang W. Two-dimensional ice-like water adlayers on a mica surface with and without a graphene coating under ambient conditions. NANOSCALE 2024. [PMID: 38787689 DOI: 10.1039/d4nr00748d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2024]
Abstract
Water tends to wet all hydrophilic surfaces under ambient conditions, and the first water adlayers on solids are important for a broad range of physicochemical phenomena and technological processes, including corrosion, wetting, lubrication, anti-icing, catalysis, and electrochemistry. Unfortunately, challenges in characterizing the first water adlayer in the laboratory have hampered molecular-level understanding of the contact water structure. Herein, we present the first ab initio molecular dynamics simulation evidence of a previously unreported ice-like adlayer structure (named as Ice-AL-II) on a prototype mica surface under ambient conditions. Calculation showed that the newly identified Ice-AL-II structure is more stable than the widely recognized ice-adlayer structure on mica surfaces (named as Ice-AL-I). Ice-AL-II exhibited a face-centered corner-cut tetragon (or a face-centered irregular pentagon) pattern of a hydrogen-bonded network. The center of the corner-cut tetragon was occupied by either a K+ cation or a water molecule with two H atoms pinned by the mica (100) via double hydrogen bonds. Our simulation also suggested that bilayer Ice-AL-II favors AA stacking rather than AB stacking. Interestingly, when a graphene sheet was coated on top of the ice-like adlayer, the stability of Ice-AL-II was further enhanced. In contrast, due to its strongly puckered structure, the Ice-AL-I structure could be crushed into a near-Ice-AL-II structure by the graphene coating. Ice-AL-II is thus proposed as a promising candidate for the ice-like structure on a mica surface detected by scanning polarization force microscopy and by atomic force microscopy between a graphene coating and a mica surface.
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Affiliation(s)
- Xiaojiao Li
- Key Laboratory of Theoretical and Computational Photochemistry, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing 100875, China.
| | - Ye-Guang Fang
- Laboratory of Theoretical and Computational Nanoscience, CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, China
| | - Qi Bai
- Key Laboratory of Theoretical and Computational Photochemistry, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing 100875, China.
| | - Jian Jiang
- Department of Materials Science and Engineering, City University of Hong Kong, Kowloon 999077, Hong Kong Special Administrative Region.
| | - Xiao Cheng Zeng
- Department of Materials Science and Engineering, City University of Hong Kong, Kowloon 999077, Hong Kong Special Administrative Region.
- Department of Chemistry, University of Nebraska-Lincoln, Lincoln, NE 68588, USA
| | - Joseph S Francisco
- Department of Earth and Environmental Science and Department of Chemistry, University of Pennsylvania, Philadelphia, PA 19104, USA.
| | - Chongqin Zhu
- Key Laboratory of Theoretical and Computational Photochemistry, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing 100875, China.
| | - Weihai Fang
- Key Laboratory of Theoretical and Computational Photochemistry, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing 100875, China.
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2
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Lin X, Zhang C, Hu S, Chen R. Heterogeneous ice nucleation of salt solution in porous media. J Chem Phys 2024; 160:094501. [PMID: 38426515 DOI: 10.1063/5.0190862] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2023] [Accepted: 02/12/2024] [Indexed: 03/02/2024] Open
Abstract
Water ubiquitously exists with dissolved salt in both natural and engineered porous media, such as soil, rock, concrete, and tissue; therefore, its freezing temperature depression behavior is of particular interest to various scientific communities tackling with mechanics and physics of porous media. To date, it remains elusive which physical mechanism accounts for its freezing temperature depression and how dissolved ions affect it. Herein, a series of pore-scale experiments were designated to investigate the freezing temperature of salt solutions in tubes with varying pore diameters, pore solution volumes, solid-liquid interfacial areas, ion concentrations, and ion types. The results reveal two main findings: (i) the freezing temperature depression of pore solutions is governed by the heterogeneous ice nucleation (HIN) at the water-solid interface, as evidenced by the observation that the freezing temperature decreases with the decreasing solid-liquid interfacial areas, regardless of pore diameter and pore solution volume; (ii) the dissolved salts alter HIN processes via changing the osmotic potential across the ice embryo-liquid water interface, as indicated by the observation that the freezing temperature is mainly determined by the salt concentration irrespective of salt types. Furthermore, the classical nucleation theory model is adapted for the freezing behavior of pore solutions by including an osmotic potential term. The model shows excellent performance in capturing experimental data with various pore solution concentrations, further substantiating the HIN as the physical mechanism governing pore solution freezing.
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Affiliation(s)
- Xin Lin
- College of Civil Engineering, Hunan University, Changsha 410082, China
| | - Chao Zhang
- Ministry of Education Key Laboratory of Building Safety and Energy Efficiency, College of Civil Engineering, Hunan University, Changsha 410082, China
| | - Shaojie Hu
- Ministry of Education Key Laboratory of Building Safety and Energy Efficiency, College of Civil Engineering, Hunan University, Changsha 410082, China
| | - Renpeng Chen
- Research Center for Advanced Underground Space Technologies, Hunan University, Changsha 410082, China; Ministry of Education Key Laboratory of Building Safety and Energy Efficiency, Hunan University, Changsha 410082, China; and College of Civil Engineering, Hunan University, Changsha 410082, China
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3
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Franceschi G, Brandstetter S, Balajka J, Sokolović I, Pavelec J, Setvín M, Schmid M, Diebold U. Interaction of surface cations of cleaved mica with water in vapor and liquid forms. Faraday Discuss 2024; 249:84-97. [PMID: 37791454 PMCID: PMC10845011 DOI: 10.1039/d3fd00093a] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Accepted: 06/08/2023] [Indexed: 10/05/2023]
Abstract
Natural minerals contain ions that become hydrated when they come into contact with water in vapor and liquid forms. Muscovite mica - a common phyllosilicate with perfect cleavage planes - is an ideal system to investigate the details of ion hydration. The cleaved mica surface is decorated by an array of K+ ions that can be easily exchanged with other ions or protons when immersed in an aqueous solution. Despite the vast interest in the atomic-scale hydration processes of these K+ ions, experimental data under controlled conditions have remained elusive. Here, atomically resolved non-contact atomic force microscopy (nc-AFM) is combined with X-ray photoelectron spectroscopy (XPS) to investigate the cation hydration upon dosing water vapor at 100 K in ultra-high vacuum (UHV). The cleaved surface is further exposed to ultra-clean liquid water at room temperature, which promotes ion mobility and partial ion-to-proton substitution. The results offer the first direct experimental views of the interaction of water with muscovite mica under UHV. The findings are in line with previous theoretical predictions.
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Affiliation(s)
- Giada Franceschi
- Institute of Applied Physics, TU Wien, Wiedner Hauptstraße 8-10/E134, 1040 Wien, Austria.
| | - Sebastian Brandstetter
- Institute of Applied Physics, TU Wien, Wiedner Hauptstraße 8-10/E134, 1040 Wien, Austria.
| | - Jan Balajka
- Institute of Applied Physics, TU Wien, Wiedner Hauptstraße 8-10/E134, 1040 Wien, Austria.
| | - Igor Sokolović
- Institute of Applied Physics, TU Wien, Wiedner Hauptstraße 8-10/E134, 1040 Wien, Austria.
| | - Jiří Pavelec
- Institute of Applied Physics, TU Wien, Wiedner Hauptstraße 8-10/E134, 1040 Wien, Austria.
| | - Martin Setvín
- Department of Surface and Plasma Science, Charles University in Prague, V Holesovickach 2, 180 00 Praha, Czech Republic
| | - Michael Schmid
- Institute of Applied Physics, TU Wien, Wiedner Hauptstraße 8-10/E134, 1040 Wien, Austria.
| | - Ulrike Diebold
- Institute of Applied Physics, TU Wien, Wiedner Hauptstraße 8-10/E134, 1040 Wien, Austria.
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4
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Shi R, Cooper AJ, Tanaka H. Impact of hierarchical water dipole orderings on the dynamics of aqueous salt solutions. Nat Commun 2023; 14:4616. [PMID: 37550299 PMCID: PMC10406952 DOI: 10.1038/s41467-023-40278-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Accepted: 07/13/2023] [Indexed: 08/09/2023] Open
Abstract
Ions exhibit highly ion-specific complex behaviours when solvated in water, which remains a mystery despite the fundamental importance of ion solvation in nature, science, and technology. Here we explain these ion-specific properties by the ion-induced hierarchical dipolar, translational, and bond-orientational orderings of ion hydration shell under the competition between ion-water electrostatic interactions and inter-water hydrogen bonding. We first characterise this competition by a new length λHB(q), explaining the ion-specific effects on solution dynamics. Then, by continuously tuning ion size and charge, we find that the bond-orientational order of the ion hydration shell highly develops for specific ion size and charge combinations. This ordering drastically stabilises the hydration shell; its degree changes the water residence time around ions by 11 orders of magnitude for main-group ions. These findings are fundamental to ionic processes in aqueous solutions, providing a physical principle for electrolyte design and application.
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Affiliation(s)
- Rui Shi
- Zhejiang Province Key Laboratory of Quantum Technology and Device, School of Physics, Zhejiang University, Hangzhou, 310027, China.
- Department of Fundamental Engineering, Institute of Industrial Science, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo, 153-8505, Japan.
| | - Anthony J Cooper
- Department of Fundamental Engineering, Institute of Industrial Science, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo, 153-8505, Japan
- Department of Physics, University of California, Santa Barbara, CA, 93106-9530, USA
| | - Hajime Tanaka
- Department of Fundamental Engineering, Institute of Industrial Science, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo, 153-8505, Japan.
- Research Center for Advanced Science and Technology, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo, 153-8904, Japan.
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5
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Franceschi G, Kocán P, Conti A, Brandstetter S, Balajka J, Sokolović I, Valtiner M, Mittendorfer F, Schmid M, Setvín M, Diebold U. Resolving the intrinsic short-range ordering of K + ions on cleaved muscovite mica. Nat Commun 2023; 14:208. [PMID: 36639388 PMCID: PMC9839703 DOI: 10.1038/s41467-023-35872-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Accepted: 01/04/2023] [Indexed: 01/15/2023] Open
Abstract
Muscovite mica, KAl2(Si3Al)O10(OH)2, is a common layered phyllosilicate with perfect cleavage planes. The atomically flat surfaces obtained through cleaving lend themselves to scanning probe techniques with atomic resolution and are ideal to model minerals and clays. Despite the importance of the cleaved mica surfaces, several questions remain unresolved. It is established that K+ ions decorate the cleaved surface, but their intrinsic ordering - unaffected by the interaction with the environment - is not known. This work presents clear images of the K+ distribution of cleaved mica obtained with low-temperature non-contact atomic force microscopy (AFM) under ultra-high vacuum (UHV) conditions. The data unveil the presence of short-range ordering, contrasting previous assumptions of random or fully ordered distributions. Density functional theory (DFT) calculations and Monte Carlo simulations show that the substitutional subsurface Al3+ ions have an important role for the surface K+ ion arrangement.
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Affiliation(s)
- Giada Franceschi
- grid.5329.d0000 0001 2348 4034Institute of Applied Physics, TU Wien, Wiedner Hauptstraβe 8-10/E134, 1040 Vienna, Austria
| | - Pavel Kocán
- grid.4491.80000 0004 1937 116XDepartment of Surface and Plasma Science, Charles University, V Holesovickach 2, 180 00 Prague, Czech Republic
| | - Andrea Conti
- grid.5329.d0000 0001 2348 4034Institute of Applied Physics, TU Wien, Wiedner Hauptstraβe 8-10/E134, 1040 Vienna, Austria
| | - Sebastian Brandstetter
- grid.5329.d0000 0001 2348 4034Institute of Applied Physics, TU Wien, Wiedner Hauptstraβe 8-10/E134, 1040 Vienna, Austria
| | - Jan Balajka
- grid.5329.d0000 0001 2348 4034Institute of Applied Physics, TU Wien, Wiedner Hauptstraβe 8-10/E134, 1040 Vienna, Austria
| | - Igor Sokolović
- grid.5329.d0000 0001 2348 4034Institute of Applied Physics, TU Wien, Wiedner Hauptstraβe 8-10/E134, 1040 Vienna, Austria
| | - Markus Valtiner
- grid.5329.d0000 0001 2348 4034Institute of Applied Physics, TU Wien, Wiedner Hauptstraβe 8-10/E134, 1040 Vienna, Austria
| | - Florian Mittendorfer
- grid.5329.d0000 0001 2348 4034Institute of Applied Physics, TU Wien, Wiedner Hauptstraβe 8-10/E134, 1040 Vienna, Austria
| | - Michael Schmid
- grid.5329.d0000 0001 2348 4034Institute of Applied Physics, TU Wien, Wiedner Hauptstraβe 8-10/E134, 1040 Vienna, Austria
| | - Martin Setvín
- grid.5329.d0000 0001 2348 4034Institute of Applied Physics, TU Wien, Wiedner Hauptstraβe 8-10/E134, 1040 Vienna, Austria ,grid.4491.80000 0004 1937 116XDepartment of Surface and Plasma Science, Charles University, V Holesovickach 2, 180 00 Prague, Czech Republic
| | - Ulrike Diebold
- grid.5329.d0000 0001 2348 4034Institute of Applied Physics, TU Wien, Wiedner Hauptstraβe 8-10/E134, 1040 Vienna, Austria
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6
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Alberstein RG, Prelesnik JL, Nakouzi E, Zhang S, De Yoreo JJ, Pfaendtner J, Tezcan FA, Mundy CJ. Discrete Orientations of Interfacial Waters Direct Crystallization of Mica-Binding Proteins. J Phys Chem Lett 2023; 14:80-87. [PMID: 36573690 DOI: 10.1021/acs.jpclett.2c02948] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Understanding the basis of templated molecular assembly on a solid surface requires a fundamental comprehension of both short- and long-range aqueous response to the surface under a variety of solution conditions. Herein we provide a detailed picture of how the molecular-scale response to different mica surfaces yields distinct solvent orientations that produce quasi-static directional potentials onto which macromolecules can adsorb. We connect this directionality to observed (a)symmetric epitaxial alignment of designed proteins onto these surfaces, corroborate our findings with 3D atomic force microscopy experiments, and identify slight differences in surface structure as the origin of this effect. Our work provides a detailed picture of the intrinsic electrolyte response in the vicinity of mineral interfaces, with clear predictions for experiment, and highlights the role of solvent on the predictive assembly of hierarchical materials on mineral surfaces.
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Affiliation(s)
- Robert G Alberstein
- Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, California 92093, United States
| | - Jesse L Prelesnik
- Department of Chemical Engineering, University of Washington, Seattle, Washington 98195, United States
| | - Elias Nakouzi
- Physical and Computational Sciences Directorate, Pacific Northwest National Laboratory, Richland, Washington 99354, United States
| | - Shuai Zhang
- Physical and Computational Sciences Directorate, Pacific Northwest National Laboratory, Richland, Washington 99354, United States
- Department of Materials Science and Engineering, University of Washington, Seattle, Washington 98195, United States
| | - James J De Yoreo
- Physical and Computational Sciences Directorate, Pacific Northwest National Laboratory, Richland, Washington 99354, United States
- Department of Materials Science and Engineering, University of Washington, Seattle, Washington 98195, United States
| | - Jim Pfaendtner
- Department of Chemical Engineering, University of Washington, Seattle, Washington 98195, United States
- Department of Materials Science and Engineering, University of Washington, Seattle, Washington 98195, United States
| | - F Akif Tezcan
- Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, California 92093, United States
- Materials Science and Engineering, University of California, San Diego, La Jolla, California 92093, United States
| | - Christopher J Mundy
- Department of Chemical Engineering, University of Washington, Seattle, Washington 98195, United States
- Department of Materials Science and Engineering, University of Washington, Seattle, Washington 98195, United States
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7
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Liu Y, Pu Y, Zeng XC. Nanoporous ices: an emerging class in the water/ice family. NANOSCALE 2022; 15:92-100. [PMID: 36484320 DOI: 10.1039/d2nr05759j] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
The history of scientific research on diverse ice structures dates back to more than a century. To date, 20 three-dimensional crystalline ice phases (ice I-ice XX) have been identified in the laboratory, among which ice XVI and ice XVII belong to a class of low-density nanoporous ices. Nanoporous ices can also be viewed as a special class of porous materials or water ice, as they possess a relatively high fraction of nano-cavities and/or nano-channels built into the hydrogen-bonded water framework. As such, like the prototypical class of porous materials (e.g., MOFs and COFs), nanoporous ices can be named as water oxygen-vertex frameworks (WOFs). Because of their large surface-to-volume ratio, WOFs may be potential media for gas storage, gas purification and separation. They may be applied to the biomedical field owing to their excellent biocompatibility. The field of porous ices is still emerging, as many porous ice structures that are predicted to be stable by computer simulations require future experimental confirmation. For future theoretical/computational studies, as the machine-learning method becomes an increasingly popular research tool in the material science and chemical science fields, more reliable porous ice structures and phase diagrams will be predicted with the development of more accurate machine-learning force fields.
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Affiliation(s)
- Yuan Liu
- School of Chemical Engineering and Technology, Sun Yat-Sen University, Zhuhai 519082, China.
| | - Yangyang Pu
- School of Chemical Engineering and Technology, Sun Yat-Sen University, Zhuhai 519082, China.
| | - Xiao Cheng Zeng
- Department of Materials Science & Engineering, City University of Hong Kong, Kowloon, 999077, Hong Kong.
- Department of Chemistry, University of Nebraska-Lincoln, NE 68588, USA
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8
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Bai G, Li H, Qin S, Gao D. Quantitative Structure-Activity Relationship Studies on Alkane Chemistry Tuning Ice Nucleation. J Phys Chem Lett 2022; 13:11564-11570. [PMID: 36475710 DOI: 10.1021/acs.jpclett.2c03183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Understanding how surface chemistry influences ice nucleation is essential for both forecasting icing phenomena and designing surfaces with desired ice-control abilities. Although alkylating is one of the most common and simplest ways for surface chemical modification, the effect of alkane chemistry on ice nucleation remains ambiguous as a result of the usually accompanying interferences of substrate morphology or heat transfer. Here, we decouple the effect of alkane chemistry on ice nucleation by investigating the ice nucleation behaviors on alkane self-assembled monolayers (SAMs) with atomic-level roughness and (sub)nanoscale thickness. Our results indicate that the introduction of alkane chemistry leads to decreased ice nucleation activities, i.e., increased anti-icing abilities, and the longer alkyl chain endows the SAM surface with the more inert ability to promote ice nucleation. The alkyl-chain-length-dependent ice nucleation activities are found to be correlated with the surface polarity. This work sheds light on a long-standing question of how alkane chemistry influences ice nucleation and offers a useful strategy for tuning ice nucleation.
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Affiliation(s)
- Guoying Bai
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin300401, People's Republic of China
| | - Hang Li
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin300401, People's Republic of China
| | - Sijia Qin
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin300401, People's Republic of China
| | - Dong Gao
- Institute of Biophysics, Hebei University of Technology, Tianjin300401, People's Republic of China
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9
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Jiang S, Diao Y, Yang H. Recent advances of bio-inspired anti-icing surfaces. Adv Colloid Interface Sci 2022; 308:102756. [PMID: 36007284 DOI: 10.1016/j.cis.2022.102756] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Revised: 07/16/2022] [Accepted: 08/11/2022] [Indexed: 11/25/2022]
Abstract
The need for improved anti-icing surfaces is the demand of the time and closely related to many important aspects of our lives as surface icing threatens not only industrial production but also human safety. Freezing on a cold surface is usually a heterogeneous nucleation process induced by the substrate. Creating an anti-icing surface is mainly achieved by changing surface morphology and chemistry to regulate the interaction between the surface and the water/ice to inhibit freezing on the surface. In this paper, recent research progress in the creation of biomimetic anti-icing surfaces is reviewed. Firstly, basic strategies of bionic anti-icing are introduced, and then bionic anti-icing surface strategies are reviewed according to four aspects: the process of ice formation, including condensate self-removing, inhibiting ice nucleation, reducing ice adhesion, and melting accumulated ice on the surface. The remaining challenges and the direction of future development of biomimetic anti-icing surfaces are also discussed.
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Affiliation(s)
- Shanshan Jiang
- School of Materials Science and Engineering, Zhengzhou University, 450001 Zhengzhou, Henan, China
| | - Yunhe Diao
- School of Materials Science and Engineering, Zhengzhou University, 450001 Zhengzhou, Henan, China
| | - Huige Yang
- School of Materials Science and Engineering, Zhengzhou University, 450001 Zhengzhou, Henan, China.
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10
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Li L, Yu Y, Li P, Liu J, Liang L, Wang L, Ding Y, Han X, Ji J, Chen S, Li D, Liu P, Zhang S, Zeng M, Fu L. The Universal Growth of Ultrathin Perovskite Single Crystals. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2108396. [PMID: 35306696 DOI: 10.1002/adma.202108396] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Revised: 02/23/2022] [Indexed: 06/14/2023]
Abstract
Perovskites have engaged significant attention owing to rich species and remarkable physical properties as well as optoelectronic applications. Compared to bulk counterparts, ultrathin perovskites exhibit more available compositions due to the breaking of bulk lattice limitation. Coupled with crystal lattice relaxation and quantum confinement, infinite intriguing properties of ultrathin perovskites deserve to be explored. Developing ultrathin perovskites with alterable composition and structure is a necessity to fully explore this versatile family. Herein, a universal strategy is conceived via constructing oriented solvent microenvironment induced by the interfacial electric field originated from the charge separation between solid and liquid phases, which is conducive to controlling the precursor distribution and makes crystals preferentially nucleate and grow in the preferentially lateral mode. From layered to nonlayered, organic to inorganic, and toxic to low-toxic lead-free perovskite, a full-range synthesis is achieved of ultrathin perovskites. This work opens up opportunities both for ultrathin perovskite exploration through compositional engineering and for device miniaturization in energy conversion applications.
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Affiliation(s)
- Linyi Li
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
| | - Yantao Yu
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
| | - Peng Li
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
| | - Jinxin Liu
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
| | - Lihan Liang
- School of Optical and Electronic Information and Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Luyang Wang
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
| | - Yu Ding
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
| | - Xiaocang Han
- Department Shanghai Key Laboratory of Advanced High-temperature Materials and Precision Forming, State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Jiamin Ji
- School of Physics and Technology, Wuhan University, Wuhan, 430072, China
| | - Shengli Chen
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
| | - Dehui Li
- School of Optical and Electronic Information and Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Pan Liu
- Department Shanghai Key Laboratory of Advanced High-temperature Materials and Precision Forming, State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Shunping Zhang
- School of Physics and Technology, Wuhan University, Wuhan, 430072, China
| | - Mengqi Zeng
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
| | - Lei Fu
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
- The Institute for Advanced Studies (IAS), Wuhan University, Wuhan, 430072, China
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11
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Whale TF. Disordering effect of the ammonium cation accounts for anomalous enhancement of heterogeneous ice nucleation. J Chem Phys 2022; 156:144503. [DOI: 10.1063/5.0084635] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Heterogeneous nucleation of ice from supercooled water is the process responsible for triggering nearly all ice formation in the natural environment. Understanding of heterogeneous ice nucleation is particularly key for understanding the formation of ice in clouds, which impacts weather and climate. While many effective ice nucleators are known the mechanisms of their actions remain poorly understood. Some inorganic nucleators have been found to nucleate ice at warmer temperatures in dilute ammonium solution than in pure water. This is surprising, analogous to salty water melting at a warmer temperature than pure water. Here, the magnitude of this effect is rationalized as being due to thermodynamically favorable ammonium-induced disordering of the hydrogen bond network of ice critical clusters formed on inorganic ice nucleators. Theoretical calculations are shown to be consistent with new experimental measurements aimed at finding the maximum magnitude of the effect. The implication of this study is that the ice-nucleating sites and surfaces of many inorganic ice nucleators are either polar or charged and therefore tend to induce formation of hydrogen ordered ice clusters. This work corroborates various literature reports indicating that some inorganic ice nucleators are most effective when nominally neutral and implies a commonality in mechanism between a wide range of inorganic ice nucleators.
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Affiliation(s)
- Thomas F Whale
- Department of Chemistry, University of Warwick, United Kingdom
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12
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Ion-dependent protein-surface interactions from intrinsic solvent response. Proc Natl Acad Sci U S A 2021; 118:2025121118. [PMID: 34172582 DOI: 10.1073/pnas.2025121118] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
The phyllosilicate mineral muscovite mica is widely used as a surface template for the patterning of macromolecules, yet a molecular understanding of its surface chemistry under varying solution conditions, required to predict and control the self-assembly of adsorbed species, is lacking. We utilize all-atom molecular dynamics simulations in conjunction with an electrostatic analysis based in local molecular field theory that affords a clean separation of long-range and short-range electrostatics. Using water polarization response as a measure of the electric fields that arise from patterned, surface-bound ions that direct the adsorption of charged macromolecules, we apply a Landau theory of forces induced by asymmetrically polarized surfaces to compute protein-surface interactions for two muscovite-binding proteins (DHR10-mica6 and C98RhuA). Comparison of the pressure between surface and protein in high-concentration KCl and NaCl aqueous solutions reveals ion-specific differences in far-field protein-surface interactions, neatly capturing the ability of ions to modulate the surface charge of muscovite that in turn selectively attracts one binding face of each protein over all others.
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Backus EHG, Schaefer J, Bonn M. Probing the Mineral-Water Interface with Nonlinear Optical Spectroscopy. Angew Chem Int Ed Engl 2021; 60:10482-10501. [PMID: 32558984 PMCID: PMC8247323 DOI: 10.1002/anie.202003085] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Revised: 05/18/2020] [Indexed: 12/21/2022]
Abstract
The interaction between minerals and water is manifold and complex: the mineral surface can be (de)protonated by water, thereby changing its charge; mineral ions dissolved into the aqueous phase screen the surface charges. Both factors affect the interaction with water. Intrinsically molecular-level processes and interactions govern macroscopic phenomena, such as flow-induced dissolution, wetting, and charging. This realization is increasingly prompting molecular-level studies of mineral-water interfaces. Here, we provide an overview of recent developments in surface-specific nonlinear spectroscopy techniques such as sum frequency and second harmonic generation (SFG/SHG), which can provide information about the molecular arrangement of the first few layers of water molecules at the mineral surface. The results illustrate the subtleties of both chemical and physical interactions between water and the mineral as well as the critical role of mineral dissolution and other ions in solution for determining those interactions.
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Affiliation(s)
- Ellen H. G. Backus
- Max Planck Institute for Polymer ResearchAckermannweg 1055128MainzGermany
- Department of Physical ChemistryUniversity of ViennaWähringer Strasse 421090ViennaAustria
| | - Jan Schaefer
- Max Planck Institute for Polymer ResearchAckermannweg 1055128MainzGermany
| | - Mischa Bonn
- Max Planck Institute for Polymer ResearchAckermannweg 1055128MainzGermany
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Backus EHG, Schaefer J, Bonn M. Untersuchung der Mineral‐Wasser‐Grenzschicht mit nicht‐linearer optischer Spektroskopie. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202003085] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Ellen H. G. Backus
- Max-Planck-Institut für Polymerforschung Ackermannweg 10 55128 Mainz Deutschland
- Institut für Physikalische Chemie Universität Wien Währinger Straße 42 1090 Wien Österreich
| | - Jan Schaefer
- Max-Planck-Institut für Polymerforschung Ackermannweg 10 55128 Mainz Deutschland
| | - Mischa Bonn
- Max-Planck-Institut für Polymerforschung Ackermannweg 10 55128 Mainz Deutschland
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