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Chen L, Wang B, Zhang W, Zheng S, Chen Z, Zhang M, Dong C, Pan F, Li S. Crystal Structure Assignment for Unknown Compounds from X-ray Diffraction Patterns with Deep Learning. J Am Chem Soc 2024; 146:8098-8109. [PMID: 38477574 DOI: 10.1021/jacs.3c11852] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/14/2024]
Abstract
Determining the structures of previously unseen compounds from experimental characterizations is a crucial part of materials science. It requires a step of searching for the structure type that conforms to the lattice of the unknown compound, which enables the pattern matching process for characterization data, such as X-ray diffraction (XRD) patterns. However, this procedure typically places a high demand on domain expertise, thus creating an obstacle for computer-driven automation. Here, we address this challenge by leveraging a deep-learning model composed of a union of convolutional residual neural networks. The accuracy of the model is demonstrated on a dataset of over 60,000 different compounds for 100 structure types, and additional categories can be integrated without the need to retrain the existing networks. We also unravel the operation of the deep-learning black box and highlight the way in which the resemblance between the unknown compound and a structure type is quantified based on both local and global characteristics in XRD patterns. This computational tool opens new avenues for automating structure analysis on materials unearthed in high-throughput experimentation.
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Affiliation(s)
- Litao Chen
- School of Advanced Materials, Peking University, Shenzhen Graduate School, Shenzhen 518055, People's Republic of China
| | - Bingxu Wang
- School of Advanced Materials, Peking University, Shenzhen Graduate School, Shenzhen 518055, People's Republic of China
| | - Wentao Zhang
- School of Advanced Materials, Peking University, Shenzhen Graduate School, Shenzhen 518055, People's Republic of China
| | - Shisheng Zheng
- School of Advanced Materials, Peking University, Shenzhen Graduate School, Shenzhen 518055, People's Republic of China
| | - Zhefeng Chen
- School of Advanced Materials, Peking University, Shenzhen Graduate School, Shenzhen 518055, People's Republic of China
| | - Mingzheng Zhang
- School of Advanced Materials, Peking University, Shenzhen Graduate School, Shenzhen 518055, People's Republic of China
| | - Cheng Dong
- School of Advanced Materials, Peking University, Shenzhen Graduate School, Shenzhen 518055, People's Republic of China
| | - Feng Pan
- School of Advanced Materials, Peking University, Shenzhen Graduate School, Shenzhen 518055, People's Republic of China
| | - Shunning Li
- School of Advanced Materials, Peking University, Shenzhen Graduate School, Shenzhen 518055, People's Republic of China
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2
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Yun Q, Ge Y, Shi Z, Liu J, Wang X, Zhang A, Huang B, Yao Y, Luo Q, Zhai L, Ge J, Peng Y, Gong C, Zhao M, Qin Y, Ma C, Wang G, Wa Q, Zhou X, Li Z, Li S, Zhai W, Yang H, Ren Y, Wang Y, Li L, Ruan X, Wu Y, Chen B, Lu Q, Lai Z, He Q, Huang X, Chen Y, Zhang H. Recent Progress on Phase Engineering of Nanomaterials. Chem Rev 2023. [PMID: 37962496 DOI: 10.1021/acs.chemrev.3c00459] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2023]
Abstract
As a key structural parameter, phase depicts the arrangement of atoms in materials. Normally, a nanomaterial exists in its thermodynamically stable crystal phase. With the development of nanotechnology, nanomaterials with unconventional crystal phases, which rarely exist in their bulk counterparts, or amorphous phase have been prepared using carefully controlled reaction conditions. Together these methods are beginning to enable phase engineering of nanomaterials (PEN), i.e., the synthesis of nanomaterials with unconventional phases and the transformation between different phases, to obtain desired properties and functions. This Review summarizes the research progress in the field of PEN. First, we present representative strategies for the direct synthesis of unconventional phases and modulation of phase transformation in diverse kinds of nanomaterials. We cover the synthesis of nanomaterials ranging from metal nanostructures such as Au, Ag, Cu, Pd, and Ru, and their alloys; metal oxides, borides, and carbides; to transition metal dichalcogenides (TMDs) and 2D layered materials. We review synthesis and growth methods ranging from wet-chemical reduction and seed-mediated epitaxial growth to chemical vapor deposition (CVD), high pressure phase transformation, and electron and ion-beam irradiation. After that, we summarize the significant influence of phase on the various properties of unconventional-phase nanomaterials. We also discuss the potential applications of the developed unconventional-phase nanomaterials in different areas including catalysis, electrochemical energy storage (batteries and supercapacitors), solar cells, optoelectronics, and sensing. Finally, we discuss existing challenges and future research directions in PEN.
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Affiliation(s)
- Qinbai Yun
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong, China
- Department of Chemical and Biological Engineering & Energy Institute, The Hong Kong University of Science and Technology, Hong Kong, China
| | - Yiyao Ge
- School of Materials Science and Engineering, Peking University, Beijing 100871, China
| | - Zhenyu Shi
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong, China
| | - Jiawei Liu
- Institute of Sustainability for Chemicals, Energy and Environment, Agency for Science, Technology and Research (A*STAR), Singapore, 627833, Singapore
| | - Xixi Wang
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong, China
| | - An Zhang
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong, China
| | - Biao Huang
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong, China
- Hong Kong Branch of National Precious Metals Material Engineering Research Center (NPMM), City University of Hong Kong, Hong Kong, China
| | - Yao Yao
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong, China
| | - Qinxin Luo
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong, China
| | - Li Zhai
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong, China
- Hong Kong Branch of National Precious Metals Material Engineering Research Center (NPMM), City University of Hong Kong, Hong Kong, China
| | - Jingjie Ge
- Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong SAR
| | - Yongwu Peng
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou 310014, China
| | - Chengtao Gong
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou 310014, China
| | - Meiting Zhao
- Institute of Molecular Aggregation Science, Department of Chemistry, Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Tianjin University, Tianjin 300072, China
| | - Yutian Qin
- Institute of Molecular Aggregation Science, Department of Chemistry, Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Tianjin University, Tianjin 300072, China
| | - Chen Ma
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, Hong Kong, China
| | - Gang Wang
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, Hong Kong, China
| | - Qingbo Wa
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong, China
| | - Xichen Zhou
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong, China
| | - Zijian Li
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong, China
| | - Siyuan Li
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong, China
| | - Wei Zhai
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong, China
| | - Hua Yang
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong, China
| | - Yi Ren
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong, China
| | - Yongji Wang
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong, China
| | - Lujing Li
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong, China
| | - Xinyang Ruan
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong, China
| | - Yuxuan Wu
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong, China
| | - Bo Chen
- State Key Laboratory of Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors, Institute of Advanced Materials, School of Chemistry and Life Sciences, Nanjing University of Posts and Telecommunications, Nanjing 210023, China
| | - Qipeng Lu
- School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Zhuangchai Lai
- Department of Applied Physics, The Hong Kong Polytechnic University, Hong Kong SAR, China
| | - Qiyuan He
- Department of Materials Science and Engineering, City University of Hong Kong, Hong Kong SAR, China
| | - Xiao Huang
- Institute of Advanced Materials (IAM), School of Flexible Electronics (SoFE), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (NanjingTech), Nanjing 211816, China
| | - Ye Chen
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, Hong Kong, China
| | - Hua Zhang
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong, China
- Hong Kong Branch of National Precious Metals Material Engineering Research Center (NPMM), City University of Hong Kong, Hong Kong, China
- Shenzhen Research Institute, City University of Hong Kong, Shenzhen 518057, China
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Yu H, Ke J, Shao Q. Two Dimensional Ir-Based Catalysts for Acidic OER. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2304307. [PMID: 37534380 DOI: 10.1002/smll.202304307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Revised: 07/20/2023] [Indexed: 08/04/2023]
Abstract
Electrochemical water splitting in acidic media is one of the most promising hydrogen production technologies, yet its practical applications in proton exchange membrane (PEM) water electrolyzers are limited by the anodic oxygen evolution reaction (OER). Iridium (Ir)-based materials are considered as the state-of-the-art catalysts for acidic OER due to their good stability under harsh acidic conditions. However, their activities still have much room for improvement. Two-dimensional (2D) materials are full of the advantages of high-surface area, unique electrical properties, facile surface modification, and good stability, making the development of 2D Ir-based catalysts more attractive for achieving high catalytic performance. In this review, first, the unique advantages of 2D catalysts for electrocatalysis are reviewed. Thereafter, the classification, synthesis methods, and recent OER achievements of 2D Ir-based materials, including pure metals, alloys, oxides, and perovskites are introduced. Finally, the prospects and challenges of developing 2D Ir-based catalysts for future acidic OER are discussed.
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Affiliation(s)
- Hao Yu
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, Jiangsu, 215123, China
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, 199 Ren'ai Road, Suzhou, Jiangsu, 215123, China
| | - Jia Ke
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, Jiangsu, 215123, China
| | - Qi Shao
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, Jiangsu, 215123, China
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4
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Su J, Wang Q, Fang M, Wang Y, Ke J, Shao Q, Lu J. Metastable Hexagonal-Phase Nickel with Ultralow Pt Content for an Efficient Alkaline/Seawater Hydrogen Evolution Reaction. ACS APPLIED MATERIALS & INTERFACES 2023. [PMID: 37883154 DOI: 10.1021/acsami.3c11303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2023]
Abstract
Hydrogen has been hailed as the core of the world's future energy architecture. It is imperative to develop catalysts with an efficient and sustained hydrogen evolution reaction (HER) to scale up alkaline/seawater electrolysis, yet significant difficulties and challenges, such as the high usage of precious metals, still remain. In this paper, a metastable-phase hexagonal close-packed (hcp) Ni-based catalyst with ultralow Pt content (3.1 at %) was designed, which has excellent catalytic performance in the alkaline/seawater HER. The optimal catalyst offers low overpotentials of 21 and 137 mV at 10 mA cm-2 and remains stable during operation for 100 and 300 h at this current density in 1.0 M KOH and real seawater, respectively. A mechanistic study shows that the metastable-phase Ni acts as an anchor site for OH-, which promotes the dissociation of water and greatly improves the formation rate of H2.
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Affiliation(s)
- Jiaqi Su
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
| | - Qun Wang
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou 215123, China
| | - Miaomiao Fang
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
| | - Yue Wang
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
| | - Jia Ke
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
| | - Qi Shao
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
| | - Jianmei Lu
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
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5
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Zhang B, Liang Q, Yong X, Wu H, Chu Z, Ma Y, Brovelli S, Manna L, Lu S. Facet-Defect Tolerant Bi-Doped Cs 2Ag xNa 1-xInCl 6 Nanoplatelets with a Near-Unity Photoluminescence Quantum Yield. NANO LETTERS 2023; 23:9050-9055. [PMID: 37756015 DOI: 10.1021/acs.nanolett.3c02830] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/28/2023]
Abstract
We report the colloidal synthesis of Bi-doped Cs2AgxNa1-xInCl6 double perovskite nanoplatelets (NPLs) exhibiting a near-unity photoluminescence quantum yield (PLQY), a record emission efficiency for nanoscale lead-free metal halides. A combination of optical spectroscopies revealed that nonradiative decay processes in the NPL were suppressed, indicating a well-passivated surface. By comparison, nanocubes with the same composition and surface ligands as the NPLs had a PLQY of only 40%. According to our calculations, the type of trap states arising from the presence of surface defects depends on their specific location: defects located on the facets of nanocubes generate only shallow traps, while those at the edges result in deep traps. In NPLs, due to their extended basal facets, most of the surface defects are facet defects. This so-called facet-defect tolerant behavior of double perovskites explains the more efficient optical emission of NPLs compared to that of nanocubes.
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Affiliation(s)
- Baowei Zhang
- Green Catalysis Center and College of Chemistry, Zhengzhou University, Zhengzhou 450000, China
| | - Qi Liang
- Green Catalysis Center and College of Chemistry, Zhengzhou University, Zhengzhou 450000, China
| | - Xue Yong
- Department of Chemistry, University of Sheffield, Sheffield S3 7HF, U.K
| | - Han Wu
- Green Catalysis Center and College of Chemistry, Zhengzhou University, Zhengzhou 450000, China
| | - Zhaoyang Chu
- School of Physical Science and Technology and Shanghai Key Laboratory of High-resolution Electron Microscopy, ShanghaiTech University, Shanghai 201210, P. R. China
| | - Yanhang Ma
- School of Physical Science and Technology and Shanghai Key Laboratory of High-resolution Electron Microscopy, ShanghaiTech University, Shanghai 201210, P. R. China
| | - Sergio Brovelli
- Department of Materials Science, University of Milano-Bicocca, via R. Cozzi 55, I-20126 Milan, Italy
| | - Liberato Manna
- Nanochemistry, Istituto Italiano di Tecnologia, via Morego 30, 16163 Genova, Italy
| | - Siyu Lu
- Green Catalysis Center and College of Chemistry, Zhengzhou University, Zhengzhou 450000, China
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6
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Bera S, Sahu P, Dutta A, Nobile C, Pradhan N, Cozzoli PD. Partial Chemicalization of Nanoscale Metals: An Intra-Material Transformative Approach for the Synthesis of Functional Colloidal Metal-Semiconductor Nanoheterostructures. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023:e2305985. [PMID: 37724799 DOI: 10.1002/adma.202305985] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Revised: 09/09/2023] [Indexed: 09/21/2023]
Abstract
Heterostructuring colloidal nanocrystals into multicomponent modular constructs, where domains of distinct metal and semiconductor phases are interconnected through bonding interfaces, is a consolidated approach to advanced breeds of solution-processable hybrid nanomaterials capable of expressing richly tunable and even entirely novel physical-chemical properties and functionalities. To meet the challenges posed by the wet-chemical synthesis of metal-semiconductor nanoheterostructures and to overcome some intrinsic limitations of available protocols, innovative transformative routes, based on the paradigm of partial chemicalization, have recently been devised within the framework of the standard seeded-growth scheme. These techniques involve regiospecific replacement reactions on preformed nanocrystal substrates, thus holding great synthetic potential for programmable configurational diversification. This review article illustrates achievements so far made in the elaboration of metal-semiconductor nanoheterostructures with tailored arrangements of their component modules by means of conversion pathways that leverage on spatially controlled partial chemicalization of mono- and bi-metallic seeds. The advantages and limitations of these approaches are discussed within the context of the most plausible mechanisms underlying the evolution of the nanoheterostructures in liquid media. Representative physical-chemical properties and applications of chemicalization-derived metal-semiconductor nanoheterostructures are emphasized. Finally, prospects for developments in the field are outlined.
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Affiliation(s)
- Suman Bera
- School of Materials Sciences, Indian Association for the Cultivation of Sciences (IACS), Kolkata, 700032, India
| | - Puspanjali Sahu
- School of Materials Sciences, Indian Association for the Cultivation of Sciences (IACS), Kolkata, 700032, India
| | - Anirban Dutta
- School of Materials Sciences, Indian Association for the Cultivation of Sciences (IACS), Kolkata, 700032, India
| | - Concetta Nobile
- CNR NANOTEC - Institute of Nanotechnology, UOS di Lecce, Lecce, 73100, Italy
| | - Narayan Pradhan
- School of Materials Sciences, Indian Association for the Cultivation of Sciences (IACS), Kolkata, 700032, India
| | - P Davide Cozzoli
- Department of Mathematics and Physics "Ennio De Giorgi", University of Salento, Lecce, 73100, Italy
- UdR INSTM di Lecce, c/o Università del Salento, Lecce, 73100, Italy
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7
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Al Mahfuz MM, Park J, Islam R, Ko DK. Colloidal Ag 2Se intraband quantum dots. Chem Commun (Camb) 2023; 59:10722-10736. [PMID: 37606169 DOI: 10.1039/d3cc02203j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/23/2023]
Abstract
With the emergence of the Internet of Things, wearable electronics, and machine vision, the exponentially growing demands for miniaturization, energy efficiency, and cost-effectiveness have imposed critical requirements on the size, weight, power consumption and cost (SWaP-C) of infrared detectors. To meet this demand, new sensor technologies that can reduce the fabrication cost associated with semiconductor epitaxy and remove the stringent requirement for cryogenic cooling are under active investigation. In the technologically important spectral region of mid-wavelength infrared, intraband colloidal quantum dots are currently at the forefront of this endeavor, with wafer-scale monolithic integration and Auger suppression being the key material capabilities to minimize the sensor's SWaP-C. In this Feature Article, we provide a focused review on the development of sensors based on Ag2Se intraband colloidal quantum dots, a heavy metal-free colloidal nanomaterial that has merits for wide-scale adoption in consumer and industrial sectors.
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Affiliation(s)
- Mohammad Mostafa Al Mahfuz
- Department of Electrical and Computer Engineering, New Jersey Institute of Technology, Newark, New Jersey 07102, USA.
| | - Junsung Park
- Department of Electrical and Computer Engineering, New Jersey Institute of Technology, Newark, New Jersey 07102, USA.
| | - Rakina Islam
- Department of Electrical and Computer Engineering, New Jersey Institute of Technology, Newark, New Jersey 07102, USA.
| | - Dong-Kyun Ko
- Department of Electrical and Computer Engineering, New Jersey Institute of Technology, Newark, New Jersey 07102, USA.
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8
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Meng L, Vu TV, Criscenti LJ, Ho TA, Qin Y, Fan H. Theoretical and Experimental Advances in High-Pressure Behaviors of Nanoparticles. Chem Rev 2023; 123:10206-10257. [PMID: 37523660 DOI: 10.1021/acs.chemrev.3c00169] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/02/2023]
Abstract
Using compressive mechanical forces, such as pressure, to induce crystallographic phase transitions and mesostructural changes while modulating material properties in nanoparticles (NPs) is a unique way to discover new phase behaviors, create novel nanostructures, and study emerging properties that are difficult to achieve under conventional conditions. In recent decades, NPs of a plethora of chemical compositions, sizes, shapes, surface ligands, and self-assembled mesostructures have been studied under pressure by in-situ scattering and/or spectroscopy techniques. As a result, the fundamental knowledge of pressure-structure-property relationships has been significantly improved, leading to a better understanding of the design guidelines for nanomaterial synthesis. In the present review, we discuss experimental progress in NP high-pressure research conducted primarily over roughly the past four years on semiconductor NPs, metal and metal oxide NPs, and perovskite NPs. We focus on the pressure-induced behaviors of NPs at both the atomic- and mesoscales, inorganic NP property changes upon compression, and the structural and property transitions of perovskite NPs under pressure. We further discuss in depth progress on molecular modeling, including simulations of ligand behavior, phase-change chalcogenides, layered transition metal dichalcogenides, boron nitride, and inorganic and hybrid organic-inorganic perovskites NPs. These models now provide both mechanistic explanations of experimental observations and predictive guidelines for future experimental design. We conclude with a summary and our insights on future directions for exploration of nanomaterial phase transition, coupling, growth, and nanoelectronic and photonic properties.
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Affiliation(s)
- Lingyao Meng
- Department of Chemistry & Chemical Biology, University of New Mexico, Albuquerque, New Mexico 87106, United States
| | - Tuan V Vu
- Geochemistry Department, Sandia National Laboratories, Albuquerque, New Mexico 87185, United States
| | - Louise J Criscenti
- Geochemistry Department, Sandia National Laboratories, Albuquerque, New Mexico 87185, United States
| | - Tuan A Ho
- Geochemistry Department, Sandia National Laboratories, Albuquerque, New Mexico 87185, United States
| | - Yang Qin
- Department of Chemical & Biomolecular Engineering, Institute of Materials Science, University of Connecticut, Mansfield, Connecticut 06269, United States
| | - Hongyou Fan
- Geochemistry Department, Sandia National Laboratories, Albuquerque, New Mexico 87185, United States
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9
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Geng S, Ji Y, Su J, Hu Z, Fang M, Wang D, Liu S, Li L, Li Y, Chen J, Lee J, Huang X, Shao Q. Homogeneous Metastable Hexagonal Phase Iridium Enhances Hydrogen Evolution Catalysis. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2206063. [PMID: 36775850 PMCID: PMC10104624 DOI: 10.1002/advs.202206063] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 01/21/2023] [Indexed: 06/18/2023]
Abstract
Catalytic reactions are surface-sensitive processes. Fabrication of homogeneous metastable metals can be used to promote phase-dependent catalytic performance; however, this has been a challenging task. Herein, homogeneous metastable hexagonal close-packed (hcp) Ir is epitaxially grown onto metastable phase hcp Ni, as demonstrated using spherical aberration electron microscopy. The as-fabricated metastable hcp Ir exhibits high intrinsic activity for the alkaline hydrogen evolution reaction (HER). In particular, metastable hcp Ir delivers a low overpotential of 17 mV at 10 mA cm-2 and presents a high specific activity of 8.55 mA cm-2 and a high turnover frequency of 38.26 s-1 at -0.07 V versus the reversible hydrogen electrode. Owing to its epitaxially grown structure, metastable hcp Ir is highly stable. Theoretical calculations reveal that metastable hcp Ir promotes H2 O adsorption and fast H2 O dissociation, which contributes to its remarkable HER activity. Findings can elucidate the crystal phase-controlled synthesis of advanced noble metal nanomaterials for the fundamental catalytic applications.
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Affiliation(s)
- Shize Geng
- College of ChemistryChemical Engineering and Materials ScienceSoochow UniversityJiangsu215123China
- College of EnergyXiamen UniversityXiamen361102P. R. China
| | - Yujin Ji
- Institute of Functional Nano & Soft Materials (FUNSOM)Soochow UniversityJiangsu215123P. R. China
| | - Jiaqi Su
- College of ChemistryChemical Engineering and Materials ScienceSoochow UniversityJiangsu215123China
| | - Zhiwei Hu
- Max Planck Institute for Chemical Physics of SolidsNothnitzer Strasse 4001187DresdenGermany
| | - Miaomiao Fang
- College of ChemistryChemical Engineering and Materials ScienceSoochow UniversityJiangsu215123China
| | - Dan Wang
- College of EnergySoochow UniversityJiangsu215123P. R. China
| | - Shangheng Liu
- College of ChemistryChemical Engineering and Materials ScienceSoochow UniversityJiangsu215123China
| | - Ling Li
- College of ChemistryChemical Engineering and Materials ScienceSoochow UniversityJiangsu215123China
| | - Youyong Li
- Institute of Functional Nano & Soft Materials (FUNSOM)Soochow UniversityJiangsu215123P. R. China
| | - Jin‐Ming Chen
- National Synchrotron Radiation Research Center101 Hsin‐Ann RoadHsinchu30076Taiwan
| | - Jyh‐Fu Lee
- National Synchrotron Radiation Research Center101 Hsin‐Ann RoadHsinchu30076Taiwan
| | - Xiaoqing Huang
- State Key Laboratory of Physical Chemistry of Solid SurfacesCollege of Chemistry and Chemical EngineeringXiamen UniversityXiamen361005China
| | - Qi Shao
- College of ChemistryChemical Engineering and Materials ScienceSoochow UniversityJiangsu215123China
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10
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Wang Q, Cheng Y, Tao HB, Liu Y, Ma X, Li DS, Yang HB, Liu B. Long-Term Stability Challenges and Opportunities in Acidic Oxygen Evolution Electrocatalysis. Angew Chem Int Ed Engl 2023; 62:e202216645. [PMID: 36546885 DOI: 10.1002/anie.202216645] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Revised: 12/21/2022] [Accepted: 12/22/2022] [Indexed: 12/24/2022]
Abstract
Polymer electrolyte membrane water electrolysis (PEMWE) has been regarded as a promising technology for renewable hydrogen production. However, acidic oxygen evolution reaction (OER) catalysts with long-term stability impose a grand challenge in its large-scale industrialization. In this review, critical factors that may lead to catalyst's instability in couple with potential solutions are comprehensively discussed, including mechanical peeling, substrate corrosion, active-site over-oxidation/dissolution, reconstruction, oxide crystal structure collapse through the lattice oxygen-participated reaction pathway, etc. Last but not least, personal prospects are provided in terms of rigorous stability evaluation criteria, in situ/operando characterizations, economic feasibility and practical electrolyzer consideration, highlighting the ternary relationship of structure evolution, industrial-relevant activity and stability to serve as a roadmap towards the ultimate application of PEMWE.
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Affiliation(s)
- Qilun Wang
- School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, Singapore, 637459, Singapore
| | - Yaqi Cheng
- School of Materials Science and Engineering, National University of Singapore, Singapore, 117575, Singapore
| | - Hua Bing Tao
- College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Yuhang Liu
- School of Materials Science and Engineering, Suzhou University of Science and Technology, Suzhou, 215009, China
| | - Xuehu Ma
- Liaoning Key Laboratory of Clean Utilisation of Chemical Resources, Institute of Chemical Engineering, Dalian University of Technology, Dalian, 116024, China
| | - Dong-Sheng Li
- College of Materials and Chemical Engineering, Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials, China Three Gorges University, Yichang, 443002, China
| | - Hong Bin Yang
- School of Materials Science and Engineering, Suzhou University of Science and Technology, Suzhou, 215009, China
| | - Bin Liu
- School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, Singapore, 637459, Singapore.,Department of Materials Science and Engineering, City University of Hong Kong, Hong Kong SAR, 999077, China
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11
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Liao F, Yin K, Ji Y, Zhu W, Fan Z, Li Y, Zhong J, Shao M, Kang Z, Shao Q. Iridium oxide nanoribbons with metastable monoclinic phase for highly efficient electrocatalytic oxygen evolution. Nat Commun 2023; 14:1248. [PMID: 36871002 PMCID: PMC9985653 DOI: 10.1038/s41467-023-36833-1] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Accepted: 02/14/2023] [Indexed: 03/06/2023] Open
Abstract
Metastable metal oxides with ribbon morphologies have promising applications for energy conversion catalysis, however they are largely restricted by their limited synthesis methods. In this study, a monoclinic phase iridium oxide nanoribbon with a space group of C2/m is successfully obtained, which is distinct from rutile iridium oxide with a stable tetragonal phase (P42/mnm). A molten-alkali mechanochemical method provides a unique strategy for achieving this layered nanoribbon structure via a conversion from a monoclinic phase K0.25IrO2 (I2/m (12)) precursor. The formation mechanism of IrO2 nanoribbon is clearly revealed, with its further conversion to IrO2 nanosheet with a trigonal phase. When applied as an electrocatalyst for the oxygen evolution reaction in acidic condition, the intrinsic catalytic activity of IrO2 nanoribbon is higher than that of tetragonal phase IrO2 due to the low d band centre of Ir in this special monoclinic phase structure, as confirmed by density functional theory calculations.
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Affiliation(s)
- Fan Liao
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, 199 Ren'ai Road, Suzhou, 215123, Jiangsu, China
| | - Kui Yin
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, 199 Ren'ai Road, Suzhou, 215123, Jiangsu, China.,College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, Jiangsu, 215123, China
| | - Yujin Ji
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, 199 Ren'ai Road, Suzhou, 215123, Jiangsu, China
| | - Wenxiang Zhu
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, 199 Ren'ai Road, Suzhou, 215123, Jiangsu, China
| | - Zhenglong Fan
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, 199 Ren'ai Road, Suzhou, 215123, Jiangsu, China
| | - Youyong Li
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, 199 Ren'ai Road, Suzhou, 215123, Jiangsu, China
| | - Jun Zhong
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, 199 Ren'ai Road, Suzhou, 215123, Jiangsu, China
| | - Mingwang Shao
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, 199 Ren'ai Road, Suzhou, 215123, Jiangsu, China
| | - Zhenhui Kang
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, 199 Ren'ai Road, Suzhou, 215123, Jiangsu, China.,Macao Institute of Materials Science and Engineering, Macau University of Science and Technology, Taipa, 999078, Macau, SAR, China
| | - Qi Shao
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, Jiangsu, 215123, China.
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12
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Vinci GV, Benzi R, Mattia M. Self-Consistent Stochastic Dynamics for Finite-Size Networks of Spiking Neurons. PHYSICAL REVIEW LETTERS 2023; 130:097402. [PMID: 36930929 DOI: 10.1103/physrevlett.130.097402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Revised: 12/23/2022] [Accepted: 02/09/2023] [Indexed: 06/18/2023]
Abstract
Despite the huge number of neurons composing a brain network, ongoing activity of local cell assemblies is intrinsically stochastic. Fluctuations in their instantaneous rate of spike firing ν(t) scale with the size of the assembly and persist in isolated networks, i.e., in the absence of external sources of noise. Although deterministic chaos due to the quenched disorder of the synaptic couplings underlies this seemingly stochastic dynamics, an effective theory for the network dynamics of a finite assembly of spiking neurons is lacking. Here, we fill this gap by extending the so-called population density approach including an activity- and size-dependent stochastic source in the Fokker-Planck equation for the membrane potential density. The finite-size noise embedded in this stochastic partial derivative equation is analytically characterized leading to a self-consistent and nonperturbative description of ν(t) valid for a wide class of spiking neuron networks. Power spectra of ν(t) are found in excellent agreement with those from detailed simulations both in the linear regime and across a synchronization phase transition, when a size-dependent smearing of the critical dynamics emerges.
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Affiliation(s)
- Gianni V Vinci
- Natl. Center for Radiation Protection and Computational Physics, Istituto Superiore di Sanità, 00161 Roma, Italy
- PhD Program in Physics, Dept. of Physics, "Tor Vergata" University of Rome, 00133 Roma, Italy
| | - Roberto Benzi
- Dept. of Physics and INFN, "Tor Vergata" University of Rome, 00133 Roma, Italy
- Centro Ricerche "E. Fermi," 00184, Roma, Italy
| | - Maurizio Mattia
- Natl. Center for Radiation Protection and Computational Physics, Istituto Superiore di Sanità, 00161 Roma, Italy
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13
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Altowyan AS, Shaban M, Abdelkarem K, El Sayed AM. The Influence of Electrode Thickness on the Structure and Water Splitting Performance of Iridium Oxide Nanostructured Films. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:3272. [PMID: 36234400 PMCID: PMC9565530 DOI: 10.3390/nano12193272] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Revised: 09/10/2022] [Accepted: 09/11/2022] [Indexed: 06/16/2023]
Abstract
For a safe environment, humanity should be oriented towards renewable energy technology. Water splitting (WS), utilizing a photoelectrode with suitable thickness, morphology, and conductivity, is essential for efficient hydrogen production. In this report, iridium oxide (IrOx) films of high conductivity were spin-cast on glass substrates. FE-SEM showed that the films are of nanorod morphology and different thicknesses. UV-Vis spectra indicated that the absorption and reflectance of the films depend on their thickness. The optical band gap (Eg) was increased from 2.925 eV to 3.07 eV by varying the spin speed (SS) of the substrates in a range of 1.5 × 103-4.5 × 103 rpm. It was clear from the micro-Raman spectra that the films were amorphous. The Eg vibrational mode of Ir-O stretching was red-shifted from 563 cm-1 (for the rutile IrO2 single crystal) to 553 cm-1. The IrOx films were used to develop photoelectrochemical (PEC) hydrogen production catalysts in 0.5M of sodium sulfite heptahydrate Na2SO3·7H2O (2-electrode system), which exhibits higher hydrogen evaluation (HE) reaction activity, which is proportional to the thickness and absorbance of the used IrOx photocathode, as it showed an incident photon-to-current efficiency (IPCE%) of 7.069% at 390 nm and -1 V. Photocurrent density (Jph = 2.38 mA/cm2 at -1 V vs. platinum) and PEC hydrogen generation rate (83.68 mmol/ h cm2 at 1 V) are the best characteristics of the best electrode (the thickest and most absorbent IrOx photocathode). At -1 V and 500 nm, the absorbed photon-to-current conversion efficiency (APCE%) was 7.84%. Electrode stability, thermodynamic factors, solar-to-hydrogen conversion efficiency (STH), and electrochemical impedance spectroscopies (EISs) were also studied.
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Affiliation(s)
- Abeer S. Altowyan
- Department of Physics, College of Science, Princess Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia
| | - Mohamed Shaban
- Physics Department, Faculty of Science, Islamic University of Madinah, P.O. Box 170, Madinah 42351, Saudi Arabia
- Nanophotonics and Applications (NPA) Lab, Department of Physics, Faculty of Science, Beni-Suef University, Beni-Suef 62514, Egypt
| | - Khaled Abdelkarem
- Nanophotonics and Applications (NPA) Lab, Department of Physics, Faculty of Science, Beni-Suef University, Beni-Suef 62514, Egypt
| | - Adel M. El Sayed
- Physics Department, Faculty of Science, Fayoum University, El Fayoum 63514, Egypt
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14
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Xiao T, Nagaoka Y, Wang X, Jiang T, LaMontagne D, Zhang Q, Cao C, Diao X, Qiu J, Lu Y, Wang Z, Cao YC. Nanocrystals with metastable high-pressure phases under ambient conditions. Science 2022; 377:870-874. [PMID: 35981022 DOI: 10.1126/science.abq7684] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
The ambient metastability of the rock-salt phase in well-defined model systems comprising nanospheres or nanorods of cadmium selenide, cadmium sulfide, or both was investigated as a function of composition, initial crystal phase, particle structure, shape, surface functionalization, and ordering level of their assemblies. Our experiments show that these nanocrystal systems exhibit ligand-tailorable reversibility in the rock salt-to-zinc blende solid-phase transformation. Interparticle sintering was used to engineer kinetic barriers in the phase transformation to produce ambient-pressure metastable rock-salt structures in a controllable manner. Interconnected nanocrystal networks were identified as an essential structure that hosted metastable high-energy phases at ambient conditions. These findings suggest general rules for transformation-barrier engineering that are useful in the rational design of next-generation materials.
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Affiliation(s)
- Tianyuan Xiao
- Department of Chemistry, University of Florida, Gainesville, FL 32611, USA
| | - Yasutaka Nagaoka
- Department of Chemistry, University of Florida, Gainesville, FL 32611, USA
| | - Xirui Wang
- Department of Chemistry, University of Florida, Gainesville, FL 32611, USA
| | - Tian Jiang
- Department of Chemistry, University of Florida, Gainesville, FL 32611, USA
| | - Derek LaMontagne
- Department of Chemistry, University of Florida, Gainesville, FL 32611, USA
| | - Qiang Zhang
- Department of Chemistry, University of Florida, Gainesville, FL 32611, USA
| | - Can Cao
- Department of Chemistry, University of Florida, Gainesville, FL 32611, USA
| | - Xizheng Diao
- Department of Chemistry, University of Florida, Gainesville, FL 32611, USA
| | - Jiahua Qiu
- Department of Chemistry, University of Florida, Gainesville, FL 32611, USA
| | - Yiruo Lu
- Department of Chemistry, University of Florida, Gainesville, FL 32611, USA
| | - Zhongwu Wang
- Cornell High Energy Synchrotron Source, Cornell University, Ithaca, NY 14853, USA
| | - Y Charles Cao
- Department of Chemistry, University of Florida, Gainesville, FL 32611, USA
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15
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Kim T, Kim Y, Park S, Park K, Wang Z, Oh SH, Jeong S, Kim D. Shape-Tuned Multiphoton-Emitting InP Nanotetrapods. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2110665. [PMID: 35285555 DOI: 10.1002/adma.202110665] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 02/19/2022] [Indexed: 06/14/2023]
Abstract
As the properties of a semiconductor material depend on the fate of the excitons, manipulating exciton behavior is the primary objective of nanomaterials. Although nanocrystals exhibit unusual excitonic characteristics owing to strong spatial confinement, studying the interactions between excitons in a single nanoparticle remains challenging due to the rapidly vanishing multiexciton species. Here, a platform for exciton tailoring using a straightforward strategy of shape-tuning of single-crystalline nanocrystals is presented. Spectroscopic and theoretical studies reveal a systematic transition of exciton confinement orientation from 3D to 2D, which is solely tuned by the geometric shape of material. Such a precise shape-effect triggers a multiphoton emission in single nanotetrapods with arms longer than the exciton Bohr radius of material. In consequence, the unique interplay between the multiple quantum states allows a geometric modulation of the quantum-confined Stark effect and nanocrystal memory effect in single nanotetrapods. These results provide a useful metric in designing nanomaterials for future photonic applications.
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Affiliation(s)
- Taehee Kim
- Department of Chemistry, Yonsei University, Seoul, 03722, Republic of Korea
| | - Youngsik Kim
- Department of Energy Science and Center for Artificial Atoms, Sungkyunkwan University (SKKU), Suwon, 16419, Republic of Korea
| | - Seongmin Park
- Department of Energy Science and Center for Artificial Atoms, Sungkyunkwan University (SKKU), Suwon, 16419, Republic of Korea
| | - Kyoungwon Park
- Display Research Center, Korea Electronics Technology Institute (KETI), Seongnam, 13509, Republic of Korea
| | - Zhen Wang
- Department of Energy Science and Center for Artificial Atoms, Sungkyunkwan University (SKKU), Suwon, 16419, Republic of Korea
| | - Sang Ho Oh
- Department of Energy Science and Center for Artificial Atoms, Sungkyunkwan University (SKKU), Suwon, 16419, Republic of Korea
| | - Sohee Jeong
- Department of Energy Science and Center for Artificial Atoms, Sungkyunkwan University (SKKU), Suwon, 16419, Republic of Korea
| | - Dongho Kim
- Department of Chemistry, Yonsei University, Seoul, 03722, Republic of Korea
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16
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Iqbal M, Ibrar A, Ali A, Rehman F, Jatoi AH, Jatoi WB, Phulpoto SN, Thebo KH. Facile synthesis of Zn-doped CdS nanowires with efficient photocatalytic performance. ENVIRONMENTAL TECHNOLOGY 2022; 43:1783-1790. [PMID: 33180681 DOI: 10.1080/09593330.2020.1850880] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Accepted: 11/07/2020] [Indexed: 06/11/2023]
Abstract
In this study, one-dimensional zinc (Zn)-doped cadmium sulphide (CdS) nanowires were synthesised by a solvothermal method. The Zn doping concentrations were varied from 1 to 5 mol% (ZnxCd1-xS where x = 0.001, 0.003 and 0.005). As-prepared materials were characterised by X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive X-ray (EDX) spectroscopy and UV-visible spectroscopy. Electrochemical impedance spectroscopy (EIS) was conducted to measure the charge transfer resistance. The photocatalytic performance of prepared materials was evaluated by the photodegradation of methylene blue (MB) dye. The result showed that 5% Zn-doped CdS is more photoactive as compared to other corresponding doped and undoped CdS. The increase in photocatalytic performance is due to improvement in the charge separation.
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Affiliation(s)
- Muzaffar Iqbal
- Department of Chemistry, Faculty of Natural Science, The University of Haripur, Haripur, Pakistan
| | - Aliya Ibrar
- Department of Chemistry, Faculty of Natural Science, The University of Haripur, Haripur, Pakistan
| | - Akbar Ali
- CAS State Key Laboratory of Multi-Phase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - Faisal Rehman
- Department of Electrical Engineering, The Sukkur IBA University, Sukkur, Pakistan
| | - Ashique Hussain Jatoi
- Department of Chemistry, Shaheed Benazir Bhutto University, Shaheed Benazirabad, Pakistan
| | - Wahid Bux Jatoi
- Department of Chemistry, Shah Abdul Latif University, Khairpur Mir's, Pakistan
| | - Shah Nawaz Phulpoto
- Department of Physics, Shaheed Benazir Bhutto University, Shaheed Benazirabad, Pakistan
| | - Khalid Hussain Thebo
- Institute of Metal Research, Chinese Academy of Sciences (UCAS), Shenyang, People's Republic of China
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17
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Yue L, Xu D, Wei Z, Zhao T, Lin T, Tenne R, Zak A, Li Q, Liu B. Size and Shape's Effects on the High-Pressure Behavior of WS 2 Nanomaterials. MATERIALS 2022; 15:ma15082838. [PMID: 35454530 PMCID: PMC9024497 DOI: 10.3390/ma15082838] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Revised: 03/31/2022] [Accepted: 04/11/2022] [Indexed: 11/23/2022]
Abstract
Exploring the behavior of nanocrystals with varying shapes and sizes under high pressure is crucial to understanding the relationship between the morphology and properties of nanomaterials. In this study, we investigated the compression behaviors of WS2 nanotubes (NT-WS2) and fullerene-like nanoparticles (IF-WS2) by in situ high-pressure X-ray diffraction (XRD) and Raman spectroscopy. It was found that the bulk modulus of NT-WS2 is 81.7 GPa, which is approximately twice as large as that of IF-WS2 (46.3 GPa). This might be attributed to the fact that IF-WS2 with larger d-spacing along the c-axis and higher defect density are more compressible under isotropic pressure than NT-WS2. Thus, the slender NT-WS2 possess a more stable crystal structure than the IF-WS2. Our findings reveal that the effects of morphology and size play crucial roles in determining the high-pressure properties of WS2 nanoparticles, and provide significant insight into the relationship between structure and properties.
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Affiliation(s)
- Lei Yue
- State Key Laboratory of Superhard Materials, Jilin University, Changchun 130012, China; (L.Y.); (D.X.); (Z.W.); (T.Z.); (T.L.); (B.L.)
| | - Dan Xu
- State Key Laboratory of Superhard Materials, Jilin University, Changchun 130012, China; (L.Y.); (D.X.); (Z.W.); (T.Z.); (T.L.); (B.L.)
| | - Ziyu Wei
- State Key Laboratory of Superhard Materials, Jilin University, Changchun 130012, China; (L.Y.); (D.X.); (Z.W.); (T.Z.); (T.L.); (B.L.)
| | - Tingting Zhao
- State Key Laboratory of Superhard Materials, Jilin University, Changchun 130012, China; (L.Y.); (D.X.); (Z.W.); (T.Z.); (T.L.); (B.L.)
| | - Tao Lin
- State Key Laboratory of Superhard Materials, Jilin University, Changchun 130012, China; (L.Y.); (D.X.); (Z.W.); (T.Z.); (T.L.); (B.L.)
| | - Reshef Tenne
- Department of Materials and Interfaces, Weizmann Institute, Rehovot 76100, Israel
- Correspondence: (R.T.); (Q.L.)
| | - Alla Zak
- Faculty of Sciences, HIT—Holon Institute of Technology, 52 Golomb St., Holon 5810201, Israel;
| | - Quanjun Li
- State Key Laboratory of Superhard Materials, Jilin University, Changchun 130012, China; (L.Y.); (D.X.); (Z.W.); (T.Z.); (T.L.); (B.L.)
- Correspondence: (R.T.); (Q.L.)
| | - Bingbing Liu
- State Key Laboratory of Superhard Materials, Jilin University, Changchun 130012, China; (L.Y.); (D.X.); (Z.W.); (T.Z.); (T.L.); (B.L.)
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18
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Fu Y. Stabilization of Metastable Halide Perovskite Lattices in the 2D Limit. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2108556. [PMID: 35043477 DOI: 10.1002/adma.202108556] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Revised: 11/21/2021] [Indexed: 05/18/2023]
Abstract
Metal halide perovskites constitute a new class of semiconductors that are structurally tailorable, exhibiting rich structural polymorphs. In this perspective, the polymorphism in lead halide perovskites is described-a material system currently used for high-performance photovoltaics and optoelectronics. Strategies for stabilizing the metastable perovskite polymorphs based on crystal size reduction and surface functionalization are critically reviewed. Focus is on an unprecedented stabilization of metastable perovskite lattices in the 2D limit (e.g., with a thickness down to a few unit cells) due to the dominance of surface effects. This stabilization allows the incorporation of various A-cations that deemed oversized for 3D perovskites into the 2D perovskite lattices, which bring new insights on the relationships between the crystal structures and optoelectronic properties and lead to emergent ferroelectricity in halide perovskites. A comprehensive understanding is provided on how the A-cations influence the structural, optoelectronic, and ferroelectric properties, with an emphasis on the second order Jahn-Teller distortion caused by the oversized A-cations. Finally, future perspectives on new structure exploration and studies of fundamental photophysical properties using stabilized perovskite lattices are provided.
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Affiliation(s)
- Yongping Fu
- Beijing National Laboratory for Molecular Science, State Key Laboratory of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, China
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19
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Strikos S, Joseph B, Alabarse FG, Valadares G, Costa DG, Capaz RB, ElMassalami M. Structural Metastability and Fermi Surface Topology of SrAl 2Si 2. Inorg Chem 2021; 60:18652-18661. [PMID: 34870977 DOI: 10.1021/acs.inorgchem.1c01656] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
SrAl2Si2 crystallizes into either a semimetallic, CaAl2Si2-type, α phase or a superconducting, BaZn2P2-type, β phase. We explore possible α→Pc,Tcβ transformations by employing pressure- and temperature-dependent free-energy calculations, vibrational spectral calculations, and room-temperature synchrotron powder X-ray diffraction (PXRD) measurements up to 14 GPa using a diamond anvil cell. Our theoretical and empirical analyses together with all reported baric and thermal events on both phases allow us to construct a preliminary P-T diagram of transformations. Our calculations show a relatively low critical pressure for the α-to-β transition (4.9 GPa at 0 K, 5.0 GPa at 300 K, and 5.3 GPa at 900 K); nevertheless, our nonequilibrium analysis indicates that the low-pressure low-temperature α phase is separated from a metastable β phase by a relatively high activation barrier. This analysis is supported by our PXRD data at ambient temperature and P ≤ 14 GPa, which shows an absence of the β phase even after a compression involving three times the critical pressure. Finally, we briefly consider the change in the Fermi surface topology when atomic rearrangement takes place via either transformations among SrAl2Si2 dimorphs or total chemical substitution of Ca by Sr in the isomorphous CaAl2Si2 α phase; empirically, the manifestation of such a topology modification is evident upon comparison of the evolution of the (magneto)transport properties of members of SrAl2Si2 dimorphs and α isomorphs.
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Affiliation(s)
- Stamatios Strikos
- Instituto de Física, Universidade Federal do Rio de Janeiro, CxP 68528, Rio de Janeiro 21945-972, Rio de Janeiro, Brazil
| | - Boby Joseph
- Elettra-Sincrotrone Trieste, S.S. 14, Km 163,5, Area Science Park, Basovizza 34149, Trieste, Italy
| | - Frederico G Alabarse
- Elettra-Sincrotrone Trieste, S.S. 14, Km 163,5, Area Science Park, Basovizza 34149, Trieste, Italy
| | - George Valadares
- Universidade Federal do Acre, Rodovia BR 364, Km 04, Distrito Industrial, Rio Branco 69920-900, Acre, Brazil
| | - Deyse G Costa
- Departamento de Química, Universidade Federal da Viçosa, Caixa Postal 216, Viçosa 36570-900, Minas Gerais, Brazil
| | - Rodrigo B Capaz
- Instituto de Física, Universidade Federal do Rio de Janeiro, CxP 68528, Rio de Janeiro 21945-972, Rio de Janeiro, Brazil
| | - Mohammed ElMassalami
- Instituto de Física, Universidade Federal do Rio de Janeiro, CxP 68528, Rio de Janeiro 21945-972, Rio de Janeiro, Brazil
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20
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Dang Q, Lin H, Fan Z, Ma L, Shao Q, Ji Y, Zheng F, Geng S, Yang SZ, Kong N, Zhu W, Li Y, Liao F, Huang X, Shao M. Iridium metallene oxide for acidic oxygen evolution catalysis. Nat Commun 2021; 12:6007. [PMID: 34650084 PMCID: PMC8516950 DOI: 10.1038/s41467-021-26336-2] [Citation(s) in RCA: 60] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Accepted: 09/30/2021] [Indexed: 11/08/2022] Open
Abstract
Exploring new materials is essential in the field of material science. Especially, searching for optimal materials with utmost atomic utilization, ideal activities and desirable stability for catalytic applications requires smart design of materials' structures. Herein, we report iridium metallene oxide: 1 T phase-iridium dioxide (IrO2) by a synthetic strategy combining mechanochemistry and thermal treatment in a strong alkaline medium. This material demonstrates high activity for oxygen evolution reaction with a low overpotential of 197 millivolt in acidic electrolyte at 10 milliamperes per geometric square centimeter (mA cmgeo-2). Together, it achieves high turnover frequencies of 4.2 sUPD-1 (3.0 sBET-1) at 1.50 V vs. reversible hydrogen electrode. Furthermore, 1T-IrO2 also shows little degradation after 126 hours chronopotentiometry measurement under the high current density of 250 mA cmgeo-2 in proton exchange membrane device. Theoretical calculations reveal that the active site of Ir in 1T-IrO2 provides an optimal free energy uphill in *OH formation, leading to the enhanced performance. The discovery of this 1T-metallene oxide material will provide new opportunities for catalysis and other applications.
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Affiliation(s)
- Qian Dang
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 215123, Jiangsu, P. R. China
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, 215123, Jiangsu, P. R. China
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, 361005, Xiamen, P. R. China
| | - Haiping Lin
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, 215123, Jiangsu, P. R. China
| | - Zhenglong Fan
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, 215123, Jiangsu, P. R. China
| | - Lu Ma
- NSLS-II, Brookhaven National Laboratory, Upton, NY, 11973, USA
| | - Qi Shao
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 215123, Jiangsu, P. R. China.
| | - Yujin Ji
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, 215123, Jiangsu, P. R. China
| | - Fangfang Zheng
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, 215123, Jiangsu, P. R. China
| | - Shize Geng
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 215123, Jiangsu, P. R. China
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, 215123, Jiangsu, P. R. China
| | - Shi-Ze Yang
- Eyring Materials Center, Arizona State University, Tempe, AZ, 85287, USA.
| | - Ningning Kong
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, 215123, Jiangsu, P. R. China
| | - Wenxiang Zhu
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, 215123, Jiangsu, P. R. China
| | - Youyong Li
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, 215123, Jiangsu, P. R. China.
| | - Fan Liao
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, 215123, Jiangsu, P. R. China
| | - Xiaoqing Huang
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, 361005, Xiamen, P. R. China.
| | - Mingwang Shao
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, 215123, Jiangsu, P. R. China.
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21
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Engineering reversible isomerization at the nanoscale via intermolecular interactions. Chem 2021. [DOI: 10.1016/j.chempr.2021.07.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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22
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Giuntini D, Davydok A, Blankenburg M, Domènech B, Bor B, Li M, Scheider I, Krywka C, Müller M, Schneider GA. Deformation Behavior of Cross-Linked Supercrystalline Nanocomposites: An in Situ SAXS/WAXS Study during Uniaxial Compression. NANO LETTERS 2021; 21:2891-2897. [PMID: 33749275 PMCID: PMC8155193 DOI: 10.1021/acs.nanolett.0c05041] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Revised: 03/17/2021] [Indexed: 05/17/2023]
Abstract
With the ever-expanding functional applications of supercrystalline nanocomposites (a relatively new category of materials consisting of organically functionalized nanoparticles arranged into periodic structures), it becomes necessary to ensure their structural stability and understand their deformation and failure mechanisms. Inducing the cross-linking of the functionalizing organic ligands, for instance, leads to a remarkable enhancement of the nanocomposites' mechanical properties. It is however still unknown how the cross-linked organic phase redistributes applied loads, how the supercrystalline lattice accommodates the imposed deformations, and thus in general what phenomena govern the overall material's mechanical response. This work elucidates these aspects for cross-linked supercrystalline nanocomposites through an in situ small- and wide-angle X-ray scattering study combined with uniaxial pressing. Because of this loading condition, it emerges that the cross-linked ligands effectively carry and distribute loads homogeneously throughout the nanocomposites, while the superlattice deforms via rotation, slip, and local defects generation.
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Affiliation(s)
- Diletta Giuntini
- Institute
of Advanced Ceramics, Hamburg University
of Technology, 21073 Hamburg, Germany
| | - Anton Davydok
- Institute
of Materials Physics, Helmholtz-Zentrum
Geesthacht, 21502 Geesthacht, Germany
| | - Malte Blankenburg
- Institute
of Materials Physics, Helmholtz-Zentrum
Geesthacht, 21502 Geesthacht, Germany
| | - Berta Domènech
- Institute
of Advanced Ceramics, Hamburg University
of Technology, 21073 Hamburg, Germany
| | - Büsra Bor
- Institute
of Advanced Ceramics, Hamburg University
of Technology, 21073 Hamburg, Germany
| | - Mingjing Li
- Institute
of Material Systems Modeling, Helmholtz-Zentrum
Geesthacht, 21502 Geesthacht, Germany
| | - Ingo Scheider
- Institute
of Material Systems Modeling, Helmholtz-Zentrum
Geesthacht, 21502 Geesthacht, Germany
| | - Christina Krywka
- Institute
of Materials Physics, Helmholtz-Zentrum
Geesthacht, 21502 Geesthacht, Germany
| | - Martin Müller
- Institute
of Materials Physics, Helmholtz-Zentrum
Geesthacht, 21502 Geesthacht, Germany
| | - Gerold A. Schneider
- Institute
of Advanced Ceramics, Hamburg University
of Technology, 21073 Hamburg, Germany
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23
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Yang X, Zhou S, Huang S, Zhao J. New boron nitride monolith phases from high-pressure compression of double-walled boron nitride nanotubes. J Chem Phys 2021; 154:134702. [PMID: 33832265 DOI: 10.1063/5.0044210] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Pressure-induced phase transition of boron nitride nanotubes (BNNTs) provides an effective approach to develop new boron nitride nanostructures with more desirable functions than those of carbon nanotubes, owing to the unique polar B-N bonds. However, the synthetic BNNTs usually comprise double- or multi-walls, whose structural evolution under pressure is complicated and remains largely elusive. Here, we unveil the complete phase transition behavior of hexagonal bundles of double-walled (DW) BNNTs of different chirality and diameters under hydrostatic pressures of up to 60 GPa. A series of new monolith phases are obtained from the compressed DW-BNNT bundles, whose structures can be well retained even after releasing the pressure. The bonding characters; electronic, optical, and mechanical properties; and Raman signature of these monolith phases are elucidated, which provide essential guidance for synthesis of new boron nitride materials with unprecedented properties for technological applications.
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Affiliation(s)
- Xiaowei Yang
- Key Laboratory of Materials Modification by Laser, Ion and Electron Beams, Dalian University of Technology, Ministry of Education, Dalian 116024, China
| | - Si Zhou
- Key Laboratory of Materials Modification by Laser, Ion and Electron Beams, Dalian University of Technology, Ministry of Education, Dalian 116024, China
| | - Shiliang Huang
- Research Center of Energetic Material Genome Science, Institute of Chemical Materials, China Academy of Engineering Physics (CAEP), Mianyang 621900, China
| | - Jijun Zhao
- Key Laboratory of Materials Modification by Laser, Ion and Electron Beams, Dalian University of Technology, Ministry of Education, Dalian 116024, China
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24
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Seth S, Jhulki S. Porous flexible frameworks: origins of flexibility and applications. MATERIALS HORIZONS 2021; 8:700-727. [PMID: 34821313 DOI: 10.1039/d0mh01710h] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Porous crystalline frameworks including zeolites, metal-organic frameworks (MOFs), covalent organic frameworks (COFs) and hydrogen-bonded organic frameworks (HOFs) have attracted great research interest in recent years. In addition to their assembly in the solid-state being fundamentally interesting and aesthetically pleasing, their potential applications have now pervaded in different areas of chemistry, biology and materials science. When framework materials are endowed with 'flexibility', they exhibit some properties (e.g., stimuli-induced pore breathing and reversible phase transformations) that are distinct from their rigid counterparts. Benefiting from flexibility and porosity, these framework materials have shown promise in applications that include separation of toxic chemicals, isotopes and hydrocarbons, sensing, and targeted delivery of chemicals. While flexibility in MOFs has been widely appreciated, recent developments of COFs and HOFs have established that flexibility is not just limited to MOFs. In fact, zeolites-that are considered rigid when compared with MOFs-are also known to exhibit dynamic modes. Despite flexibility may be conceived as being detrimental to the formation and stability of periodic structures, the landscape of flexible framework structures continues to expand with discovery of new materials with promising applications. In this review, we make an account of different flexible framework materials based on their framework types with a more focus on recent examples and delve into the origin of flexibility in each case. This systematic analysis of different flexibility types based on their origins enables understanding of structure-property relationships, which should help guide future development of flexible framework materials based on appropriate monomer design and tailoring their properties by bottom-up approach. In essence, this review provides a summary of different flexibility types extant to framework materials and critical analysis of importance of flexibility in emerging applications.
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Affiliation(s)
- Saona Seth
- Department of Applied Sciences, Tezpur University, Napaam, Assam 784028, India.
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25
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Han H, Yao Y, Robinson RD. Interplay between Chemical Transformations and Atomic Structure in Nanocrystals and Nanoclusters. Acc Chem Res 2021; 54:509-519. [PMID: 33434011 DOI: 10.1021/acs.accounts.0c00704] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
ConspectusChemically induced transformations are postsynthetic processing reactions applied to first generation (as-synthesized) nanomaterials to modify property-defining factors such as atomic structure, chemical composition, surface chemistry, and/or morphology. Compared with conditions for direct synthesis of colloidal nanocrystals, postsynthetic chemical transformations can be conducted in relatively mild conditions with a more controllable process, which makes them suitable for the precise manipulation of nanomaterials and for trapping metastable phases that are typically inaccessible from the conventional synthetic routes. Each of the chemically induced transformations methods can result in substantial restructuring of the atomic structure, but their transformation pathways can be very different. And the converse is also true: the atomic structure of the parent material plays a large role in the pathway toward and the resulting chemically transformed product. Additionally, the characteristic length of the parent material greatly affects the structure, which affects the outcome of the reaction.In this Account, we show how the atomic structure and nanoscale size directs the product formation into materials that are inaccessible from analogous chemically transformations in bulk materials. Through examples from the three chemical transformation processes (cation/anion exchange, redox reactions, and ligand exchange and ligand etching), the effect of the atomic structure on chemical transformations is made apparent, and vice versa. For cation exchange, an anisotropic atomic lattice results in a unidirectional exchange boundary. And because the interface can extend through the full crystal, a substantial strain field can form, influencing the phase of the material. In the redox reaction that leads to the nanoscale Kirkendall effect, the atomic structure is the key to inverting the diffusion rates in a diffusion couple to form the hollow cores. And for ligand etching, if one of the materials in a heterostructure has a defected and\or defect-tolerant atomic structure, it can be preferentially etched and its atomic structure can undergo phase transformations while the other composition remains intact. For length scales, we show how the chemically induced transformations greatly differ between bulk, nanocrystal, and nanocluster characteristic sizes. For instance, the structural transformation on relatively large nanocrystals (2-100 nm) can be a continuous process when the activation volume is smaller than the nanocrystal, while for smaller nanoclusters (<2 nm) the transformation kinetics could be swift resulting in only discrete thermodynamic states. Comparing the two nanosystems (nanocrystals to small nanoclusters), we address how their atomic structural differences can direct the divergent transformation phenomena and the corresponding mechanisms. Understanding the nanoscale mechanisms of chemically induced transformations and how they differ from bulk processes is key to unlocking new science and for implementing this processing for functional materials.
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Affiliation(s)
- Haixiang Han
- Materials Science and Engineering Department, Cornell University, Ithaca, New York 14853, United States
| | - Yuan Yao
- Materials Science and Engineering Department, Cornell University, Ithaca, New York 14853, United States
| | - Richard D. Robinson
- Materials Science and Engineering Department, Cornell University, Ithaca, New York 14853, United States
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26
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Wang D, Liu X, Fang S, Huang C, Kang Y, Yu H, Liu Z, Zhang H, Long R, Xiong Y, Lin Y, Yue Y, Ge B, Ng TK, Ooi BS, Mi Z, He JH, Sun H. Pt/AlGaN Nanoarchitecture: Toward High Responsivity, Self-Powered Ultraviolet-Sensitive Photodetection. NANO LETTERS 2021; 21:120-129. [PMID: 33320006 DOI: 10.1021/acs.nanolett.0c03357] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Energy-saving photodetectors are the key components in future photonic systems. Particularly, self-powered photoelectrochemical-type photodetectors (PEC-PDs), which depart completely from the classical solid-state junction device, have lately intrigued intensive interest to meet next-generation power-independent and environment-sensitive photodetection. Herein, we construct, for the first time, solar-blind PEC PDs based on self-assembled AlGaN nanostructures on silicon. Importantly, with the proper surface platinum (Pt) decoration, a significant boost of photon responsivity by more than an order of magnitude was achieved in the newly built Pt/AlGaN nanoarchitectures, demonstrating strikingly high responsivity of 45 mA/W and record fast response/recovery time of 47/20 ms without external power source. Such high solar-blind photodetection originates from the unparalleled material quality, fast interfacial kinetics, as well as high carrier separation efficiency which suggests that embracement of defect-free wide-bandgap semiconductor nanostructures with appropriate surface decoration offers an unprecedented opportunity for designing future energy-efficient and large-scale optoelectronic systems on a silicon platform.
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Affiliation(s)
- Danhao Wang
- School of Microelectronics, University of Science and Technology of China, Hefei 230029, P.R. China
| | - Xin Liu
- School of Microelectronics, University of Science and Technology of China, Hefei 230029, P.R. China
| | - Shi Fang
- School of Microelectronics, University of Science and Technology of China, Hefei 230029, P.R. China
| | - Chen Huang
- School of Microelectronics, University of Science and Technology of China, Hefei 230029, P.R. China
| | - Yang Kang
- School of Microelectronics, University of Science and Technology of China, Hefei 230029, P.R. China
| | - Huabin Yu
- School of Microelectronics, University of Science and Technology of China, Hefei 230029, P.R. China
| | - Zhongling Liu
- School of Microelectronics, University of Science and Technology of China, Hefei 230029, P.R. China
| | - Haochen Zhang
- School of Microelectronics, University of Science and Technology of China, Hefei 230029, P.R. China
| | - Ran Long
- School of Chemistry and Materials Science, University of Science and Technology of China, Hefei 230029, P.R. China
| | - Yujie Xiong
- School of Chemistry and Materials Science, University of Science and Technology of China, Hefei 230029, P.R. China
| | - Yangjian Lin
- Institute of Physical Science and Information Technology, Anhui University, Hefei 230029, P.R. China
| | - Yang Yue
- Institute of Physical Science and Information Technology, Anhui University, Hefei 230029, P.R. China
| | - Binghui Ge
- Institute of Physical Science and Information Technology, Anhui University, Hefei 230029, P.R. China
| | - Tien Khee Ng
- Computer, Electrical, and Mathematical Sciences, and Engineering Division, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia
| | - Boon S Ooi
- Computer, Electrical, and Mathematical Sciences, and Engineering Division, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia
| | - Zetian Mi
- Department of Electrical Engineering and Computer Science, University of Michigan, 1301 Beal Avenue, Ann Arbor, Michigan 48109, United States
| | - Jr-Hau He
- Department of Materials Science and Engineering, City University of Hong Kong, Kowloon, Hong Kong SAR 999077, P.R. China
| | - Haiding Sun
- School of Microelectronics, University of Science and Technology of China, Hefei 230029, P.R. China
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27
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Della Rocca DG, Victória HFV, Moura-Nickel CD, Scaratti G, Krambrock K, De Noni A, Vilar VJP, José HJ, Moreira RFPM. Peroxidation and photo-peroxidation of pantoprazole in aqueous solution using silver molybdate as catalyst. CHEMOSPHERE 2021; 262:127671. [PMID: 32805651 DOI: 10.1016/j.chemosphere.2020.127671] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Revised: 06/25/2020] [Accepted: 07/09/2020] [Indexed: 06/11/2023]
Abstract
In this study, silver molybdate was used as a catalyst in different oxidation processes to degrade pantoprazole (PAN) from aqueous suspension. The catalyst was synthesized using a controlled precipitation method and characterized by XRD, FTIR spectroscopy, BET analysis, Zeta potential, FEG-SEM/EDS, DRS and EPR. The α- and β-phases of Ag2MoO4 were identified as crystalline structure of the butterfly-shaped particles. The metastable α-phase could be completely converted into β-Ag2MoO4 by thermal treatment at 300 °C. The band gap energy of β-Ag2MoO4 (Eg = 3.25 eV) is slightly higher than for as-prepared catalyst (α-Ag2MoO4 + β-Ag2MoO4) (Eg = 3.09 eV), suggesting that as-prepared catalyst should be active under visible light. PAN is sensible to UV light irradiation, and the addition of H2O2 as electron acceptor enhanced the mineralization rate. In the catalytic UV-based reactions, high PAN oxidation efficiencies were obtained (>85%) but with low mineralization (32-64%). Catalytic peroxidation and photo-catalytic peroxidation under visible light showed the highest PAN oxidation efficiency, leading to its almost complete mineralization (>95%), even under dark conditions (98% in 120 min). Several degradation byproducts were identified and three mechanistic routes of PAN decomposition were proposed. The identified byproducts are less toxic than the parent compound. EPR coupled with the spin trapping method identified •OH radicals as the main ROS species in both photocatalytic and catalytic peroxidation reactions. Ag2MoO4 showed to be a promising catalyst to promote the decomposition of hydrogen peroxide into ROS.1.
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Affiliation(s)
- Daniela G Della Rocca
- Laboratory of Energy and Environment (LEMA), Department of Chemical and Food Engineering, Federal University of Santa Catarina (UFSC), 88040-900, Florianópolis, SC, Brazil.
| | - Henrique F V Victória
- Department of Physics, Federal University of Minas Gerais (UFMG), 31270-901, Belo Horizonte, MG, Brazil.
| | - Camilla Daniela Moura-Nickel
- Laboratory of Energy and Environment (LEMA), Department of Chemical and Food Engineering, Federal University of Santa Catarina (UFSC), 88040-900, Florianópolis, SC, Brazil.
| | - Gidiane Scaratti
- Laboratory of Energy and Environment (LEMA), Department of Chemical and Food Engineering, Federal University of Santa Catarina (UFSC), 88040-900, Florianópolis, SC, Brazil.
| | - Klaus Krambrock
- Department of Physics, Federal University of Minas Gerais (UFMG), 31270-901, Belo Horizonte, MG, Brazil.
| | - Agenor De Noni
- Laboratory of Energy and Environment (LEMA), Department of Chemical and Food Engineering, Federal University of Santa Catarina (UFSC), 88040-900, Florianópolis, SC, Brazil.
| | - Vítor J P Vilar
- Laboratory of Separation and Reaction Engineering - Laboratory of Catalysis and Materials (LSRE-LCM), Department of Chemical Engineering, Faculty of Engineering, University of Porto, Rua Do Dr. Roberto Frias, 4200-465, Porto, Portugal.
| | - Humberto Jorge José
- Laboratory of Energy and Environment (LEMA), Department of Chemical and Food Engineering, Federal University of Santa Catarina (UFSC), 88040-900, Florianópolis, SC, Brazil.
| | - Regina F P M Moreira
- Laboratory of Energy and Environment (LEMA), Department of Chemical and Food Engineering, Federal University of Santa Catarina (UFSC), 88040-900, Florianópolis, SC, Brazil.
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28
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Kagan CR, Bassett LC, Murray CB, Thompson SM. Colloidal Quantum Dots as Platforms for Quantum Information Science. Chem Rev 2020; 121:3186-3233. [DOI: 10.1021/acs.chemrev.0c00831] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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29
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Robinson EH, Dwyer KM, Koziel AC, Nuriye AY, Macdonald JE. Synthesis of vulcanite (CuTe) and metastable Cu 1.5Te nanocrystals using a dialkyl ditelluride precursor. NANOSCALE 2020; 12:23036-23041. [PMID: 33174553 DOI: 10.1039/d0nr06910h] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
This study demonstrates that a dialkyl ditelluride reagent can produce metastable and difficult-to-achieve metal telluride phases in nanocrystal syntheses. Using didodecyl ditelluride and without the need for phosphine precursors, nanocubes of the pseudo-cubic phase (Cu1.5Te) were synthesized at the moderate temperature of 135 °C. At the higher temperature of 155 °C, 2-D nanosheets of vulcanite (CuTe) resulted, a nanomaterial in a phase that has not been previously achieved through thermal decomposition methods. Materials were characterized with TEM, powder XRD and UV-Vis-NIR absorbance spectroscopy.
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Affiliation(s)
- Evan H Robinson
- Department of Chemistry, Vanderbilt University, Nashville, Tennessee 37235, USA.
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30
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Tan X, Geng S, Ji Y, Shao Q, Zhu T, Wang P, Li Y, Huang X. Closest Packing Polymorphism Interfaced Metastable Transition Metal for Efficient Hydrogen Evolution. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e2002857. [PMID: 32864791 DOI: 10.1002/adma.202002857] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Revised: 08/01/2020] [Indexed: 06/11/2023]
Abstract
Metastable materials are promising because of their catalytic properties, high-energy structure, and unique electronic environment. However, the unstable nature inherited from the metastability hinders further performance improvement and practical applications of these materials. Herein, this limitation is successfully addressed by constructing an in situ polymorphism interface (inf) between the metastable hexagonal-close-packed (hcp) phase and its stable counterpart (face-centered cubic, fcc) in cobalt-nickel (CoNi) alloy. Calculations reveal that the interfacial synergism derived from the hcp and fcc phases lowers the formation energy and enhances stability. Consequently, the optimized CoNi-inf exhibits an exceptionally low potential of 72 mV at 10 mA cm-2 and a Tafel slope of 57 mV dec-1 for the hydrogen evolution reaction (HER) in 1.0 m KOH. Furthermore, it is superior to most state-of-the-art non-noble-metal-based HER catalysts. No noticeable activity decay or structural changes are observed even over 14 h of catalysis. The computational simulation further rationalizes that the interface of CoNi-inf with a suitable d-band center provides uniform sites for hydrogen adsorption, leading to a distinguished HER catalytic activity. This work, therefore, presents a new route for designing metastable catalysts for potential energy conversion.
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Affiliation(s)
- Xinyue Tan
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Jiangsu, 215123, China
| | - Shize Geng
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Jiangsu, 215123, China
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Jiangsu, 215123, China
| | - Yujin Ji
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Jiangsu, 215123, China
| | - Qi Shao
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Jiangsu, 215123, China
- Guangdong Provincial Key Laboratory of Energy Materials for Electric Power, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Ting Zhu
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Jiangsu, 215123, China
| | - Pengtang Wang
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Jiangsu, 215123, China
| | - Youyong Li
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Jiangsu, 215123, China
| | - Xiaoqing Huang
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Jiangsu, 215123, China
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31
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Sandeep Arya, Sharma A, Singh A, Ahmed A, Mahajan S. Preparation of CdS and CdS@Zn3(PO4)2 Nanocomposites by Sol-Gel Method: DFT Study and Effect of Temperature on Band Gap. RUSS J INORG CHEM+ 2020. [DOI: 10.1134/s0036023620090016] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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32
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Beimborn JC, Walther LR, Wilson KD, Weber JM. Size-Dependent Pressure-Response of the Photoluminescence of CsPbBr 3 Nanocrystals. J Phys Chem Lett 2020; 11:1975-1980. [PMID: 32066242 DOI: 10.1021/acs.jpclett.0c00174] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
We report the size-dependent pressure response for CsPbBr3 perovskite nanocrystals in the size range 5.7-10.9 nm using photoluminescence spectroscopy in a diamond anvil cell. As the nanocrystal size decreases below ca. 7.5 nm, we observe a decrease in the transition pressure at which there is a change in the mode of deformation concomitant with an isostructural phase transition. We hypothesize that surface fluctuations regarding the tilt and distortion of surface PbBr6 octahedra facilitate the change in the mode of deformation and phase transition at lower pressures for smaller nanocrystals.
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Affiliation(s)
- J Curtis Beimborn
- JILA and the Department of Chemistry, University of Colorado, Boulder, Colorado 80309-0440, United States
| | - Luke R Walther
- JILA and the Department of Chemistry, University of Colorado, Boulder, Colorado 80309-0440, United States
| | - Kenneth D Wilson
- JILA and the Department of Chemistry, University of Colorado, Boulder, Colorado 80309-0440, United States
| | - J Mathias Weber
- JILA and the Department of Chemistry, University of Colorado, Boulder, Colorado 80309-0440, United States
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33
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Park S, Peddigari M, Kim JH, Kim E, Hwang GT, Kim JW, Ahn CW, Choi JJ, Hahn BD, Choi JH, Yoon WH, Park DS, Park KI, Jeong CK, Lee JW, Min Y. Selective Phase Control of Dopant-Free Potassium Sodium Niobate Perovskites in Solution. Inorg Chem 2020; 59:3042-3052. [DOI: 10.1021/acs.inorgchem.9b03385] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Seonhwa Park
- Functional Ceramics Department, Powder and Ceramics Division, Korea Institute of Materials Science (KIMS), Changwon, Gyeongnam, Korea 51508
- Department of Materials Science and Engineering, Pusan National University, Busan, Korea 46241
| | - Mahesh Peddigari
- Functional Ceramics Department, Powder and Ceramics Division, Korea Institute of Materials Science (KIMS), Changwon, Gyeongnam, Korea 51508
| | - Jung Hwan Kim
- Functional Ceramics Department, Powder and Ceramics Division, Korea Institute of Materials Science (KIMS), Changwon, Gyeongnam, Korea 51508
| | - Eunae Kim
- Functional Ceramics Department, Powder and Ceramics Division, Korea Institute of Materials Science (KIMS), Changwon, Gyeongnam, Korea 51508
| | - Geon-Tae Hwang
- Functional Ceramics Department, Powder and Ceramics Division, Korea Institute of Materials Science (KIMS), Changwon, Gyeongnam, Korea 51508
| | - Jong-Woo Kim
- Functional Ceramics Department, Powder and Ceramics Division, Korea Institute of Materials Science (KIMS), Changwon, Gyeongnam, Korea 51508
| | - Cheol-Woo Ahn
- Functional Ceramics Department, Powder and Ceramics Division, Korea Institute of Materials Science (KIMS), Changwon, Gyeongnam, Korea 51508
| | - Jong-Jin Choi
- Functional Ceramics Department, Powder and Ceramics Division, Korea Institute of Materials Science (KIMS), Changwon, Gyeongnam, Korea 51508
| | - Byung-Dong Hahn
- Functional Ceramics Department, Powder and Ceramics Division, Korea Institute of Materials Science (KIMS), Changwon, Gyeongnam, Korea 51508
| | - Joon-Hwan Choi
- Functional Ceramics Department, Powder and Ceramics Division, Korea Institute of Materials Science (KIMS), Changwon, Gyeongnam, Korea 51508
| | - Woon-Ha Yoon
- Functional Ceramics Department, Powder and Ceramics Division, Korea Institute of Materials Science (KIMS), Changwon, Gyeongnam, Korea 51508
| | - Dong-Soo Park
- Functional Ceramics Department, Powder and Ceramics Division, Korea Institute of Materials Science (KIMS), Changwon, Gyeongnam, Korea 51508
| | - Kwi-Il Park
- School of Materials Science and Engineering, Kyungpook National University, Daegu, Korea 41566
| | - Chang Kyu Jeong
- Division of Advanced Materials Engineering, Jeonbuk National University, Jeonju, Korea 54896
| | - Jung Woo Lee
- Department of Materials Science and Engineering, Pusan National University, Busan, Korea 46241
| | - Yuho Min
- Functional Ceramics Department, Powder and Ceramics Division, Korea Institute of Materials Science (KIMS), Changwon, Gyeongnam, Korea 51508
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34
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Yang X, Zhou HL, He CT, Mo ZW, Ye JW, Chen XM, Zhang JP. Flexibility of Metal-Organic Framework Tunable by Crystal Size at the Micrometer to Submillimeter Scale for Efficient Xylene Isomer Separation. RESEARCH 2019; 2019:9463719. [PMID: 31922147 PMCID: PMC6946284 DOI: 10.34133/2019/9463719] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/20/2019] [Accepted: 08/17/2019] [Indexed: 11/16/2022]
Abstract
Understanding, controlling, and utilizing the flexibility of adsorbents are of great importance and difficulty. Analogous with conventional solid materials, downsizing to the nanoscale is emerging as a possible strategy for controlling the flexibility of porous coordination polymers (or metal-organic frameworks). We report a unique flexibility controllable by crystal size at the micrometer to submillimeter scale. Template removal transforms [Cu2(pypz)2]·0.5p-xylene (MAF-36, Hpypz = 4-(1H-pyrazol-4-yl)pyridine) with one-dimensional channels to α-[Cu2(pypz)2] with discrete small cavities, and further heating gives a nonporous isomer β-[Cu2(pypz)2]. Both isomers can adsorb p-xylene to give [Cu2(pypz)2]·0.5p-xylene, meaning the coexistence of guest-driven flexibility and shape-memory behavior. The phase transition temperature from α-[Cu2(pypz)2] to β-[Cu2(pypz)2] decreased from ~270°C to ~150°C by increasing the crystal size from the micrometer to the submillimeter scale, ca. 2-3 orders larger than those of other size-dependent behaviors. Single-crystal X-ray diffraction showed coordination bond reconstitution and chirality inversion mechanisms for the phase transition, which provides a sufficiently high energy barrier to stabilize the metastable phase without the need of downsizing to the nanoscale. By virtue of the crystalline molecular imprinting and gate-opening effects, α-[Cu2(pypz)2] and β-[Cu2(pypz)2] show unprecedentedly high p-xylene selectivities of 16 and 51, respectively, as well as ultrafast adsorption kinetics (<2 minutes), for xylene isomers.
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Affiliation(s)
- Xiao Yang
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, China
| | - Hao-Long Zhou
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, China
| | - Chun-Ting He
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, China
| | - Zong-Wen Mo
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, China
| | - Jia-Wen Ye
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, China
| | - Xiao-Ming Chen
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, China
| | - Jie-Peng Zhang
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, China
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35
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Wang N, Liu G, Dai H, Ma H, Lin M. Spectroscopic evidence for electrochemical effect of mercury ions on gold nanoparticles. Anal Chim Acta 2019; 1062:140-146. [DOI: 10.1016/j.aca.2019.02.037] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2018] [Revised: 02/12/2019] [Accepted: 02/19/2019] [Indexed: 01/09/2023]
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36
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Das P, Devi PS, Blom DA, Vogt T, Lee Y. High-Pressure Phase Transitions of Morphologically Distinct Zn 2SnO 4 Nanostructures. ACS OMEGA 2019; 4:10539-10547. [PMID: 31460152 PMCID: PMC6649287 DOI: 10.1021/acsomega.9b01361] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/11/2019] [Accepted: 06/06/2019] [Indexed: 06/10/2023]
Abstract
Many aspects of nanostructured materials at high pressures are still unexplored. We present here, high-pressure structural behavior of two Zn2SnO4 nanomaterials with inverse spinel type, one a particle with size of ∼7 nm [zero dimensional (0-D)] and the other with a chain-like [one dimensional (1-D)] morphology. We performed in situ micro-Raman and synchrotron X-ray diffraction measurements and observed that the cation disordering of the 0-D nanoparticle is preserved up to ∼40 GPa, suppressing the reported martensitic phase transformation. On the other hand, an irreversible phase transition is observed from the 1-D nanomaterial into a new and dense high-pressure orthorhombic CaFe2O4-type structure at ∼40 GPa. The pressure-treated 0-D and 1-D nanomaterials have distinct diffuse reflectance and emission properties. In particular, a heterojunction between the inverse spinel and quenchable orthorhombic phases allows the use of 1-D Zn2SnO4 nanomaterials as efficient photocatalysts as shown by the degradation of the textile pollutant methylene blue.
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Affiliation(s)
- Partha
Pratim Das
- Department
of Earth System Sciences, Yonsei University, Seoul 120749, Korea
| | - P. Sujatha Devi
- Sensor
and Actuator Division, CSIR-Central Glass
and Ceramic Research Institute, Kolkata 700032, India
| | - Douglas A. Blom
- NanoCenter & Department of Chemical
Engineering,
and NanoCenter &
Department of Chemistry & Biochemistry, University of South Carolina, Columbia, South Carolina 29208, United States
| | - Thomas Vogt
- NanoCenter & Department of Chemical
Engineering,
and NanoCenter &
Department of Chemistry & Biochemistry, University of South Carolina, Columbia, South Carolina 29208, United States
| | - Yongjae Lee
- Department
of Earth System Sciences, Yonsei University, Seoul 120749, Korea
- Center
for High Pressure Science and Technology Advanced Research, Shanghai 201203, China
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37
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Sabet M, Mohammadi M, Googhari F. Prominent Visible Light Photocatalytic and Water Purification Activity of PbS/CdS/CdO Nanocomposite Synthesized via Simple Co-Precipitation Method. ACTA ACUST UNITED AC 2019. [DOI: 10.2174/2210681208666180329152523] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Background:
Due to unique chemical and physical properties and potential application in
many fields, nanostructured materials have attracted many attentions. Cadmium sulfide (CdS) is a semiconductor
that has a wide band gap of 2.42 eV at room temperature and can be served in solar cells
and photoluminescence devices. Cadmium sulfide (CdS) is a kind of attractive semiconductor material,
and it is now widely used for optoelectronic applications. CdS nano and microstructures can be synthesized
via different chemical methods such as microwave-solvothermal synthesis, surfactant-ligand coassisting
solvothermal method and hydrothermal route. Also different morphologies of this semiconductor
such as dendrites, nanorods, sphere-like, flakes, nanowires, flower-like shape triangular and
hexagonal plates, were synthesized.
Methods:
To synthesis of the nanocomposite, a simple co-precipitation method was served. In briefly,
0.1 g of Pb(NO3)2 was dissolved in the distilled water (Solution 1). Also different aqueous solutions
were made from dissolving different mole ratio of Cd(NO3)2.6H2O respect to the lead source in the
water (Solution 2). Two solutions were mixed together under vigorous stirring and then S2- solution
(0.02 g thiourea in the water) was added to the Pb2+/Cd2+ solution. After that 0.1 g of CTAB as
surfactant was added to the final solution. Finally to the synthesis of both sulfide and oxide
nanostructures, NaOH solution was added to the prepared solution to obtain pH= 10. Distilled water
and absolute ethanol were used to wash the obtained precipitate and then it dried at 80 °C for 8 h.
Results:
From the XRD pattern it was found that the peaks placed at 24.9°, 27°, 44.1°, 48°, 52°, 54°,
57.8°, 66.8°, 71.2° are associated to CdS compound with hexagonal phase (JCPDS=00-001-0780) that
belong to (100), (002), (110), (103), (112), (201), (202), (203), (211) Miller indices respectively. The
Other peaks belong to PbS with hexagonal phase (JCPDS=01-078-1897), and CdO with cubic phase
(JCPDS=00-001-1049). From SEM images, it was found by choosing the mole ratio to 1:1, very small
and uniform particles were achieved. By increasing Pb2+/Cd2+ mole ratio to 1:2, very tiny particles aggregated
together were achieved.
Conclusion:
The results showed that the product can adsorb extra 80% of heavy metal ions from the
water. So it can be said that the nanocomposite can be used in the water treatment due to its high photocatalytic
and surface adsorption activities. In other words, it can remove heavy metals from the water
and also decompose organic pollutions.
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Affiliation(s)
- Mohammad Sabet
- Department of Chemistry, Faculty of Science, Vali-e-Asr University of Rafsanjan, Rafsanjan, PO Box: 77176, Iran
| | - Marziyeh Mohammadi
- Department of Chemistry, Faculty of Science, Vali-e-Asr University of Rafsanjan, Rafsanjan, PO Box: 77176, Iran
| | - Fatemeh Googhari
- Department of Chemistry, Faculty of Science, Vali-e-Asr University of Rafsanjan, Rafsanjan, PO Box: 77176, Iran
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38
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Elucidation of flexible metal-organic frameworks: Research progresses and recent developments. Coord Chem Rev 2019. [DOI: 10.1016/j.ccr.2019.03.008] [Citation(s) in RCA: 88] [Impact Index Per Article: 17.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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39
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Bai F, Bian K, Huang X, Wang Z, Fan H. Pressure Induced Nanoparticle Phase Behavior, Property, and Applications. Chem Rev 2019; 119:7673-7717. [PMID: 31059242 DOI: 10.1021/acs.chemrev.9b00023] [Citation(s) in RCA: 89] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Nanoparticle (NP) high pressure behavior has been extensively studied over the years. In this review, we summarize recent progress on the studies of pressure induced NP phase behavior, property, and applications. This review starts with a brief overview of high pressure characterization techniques, coupled with synchrotron X-ray scattering, Raman, fluorescence, and absorption. Then, we survey the pressure induced phase transition of NP atomic crystal structure including size dependent phase transition, amorphization, and threshold pressures using several typical NP material systems as examples. Next, we discuss the pressure induced phase transition of NP mesoscale structures including topics on pressure induced interparticle separation distance, NP coupling, and NP coalescence. Pressure induced new properties and applications in different NP systems are highlighted. Finally, outlooks with future directions are discussed.
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Affiliation(s)
- Feng Bai
- Key Laboratory for Special Functional Materials of the Ministry of Education, Henan University, Kaifeng 475004, P. R. China
| | - Kaifu Bian
- Sandia National Laboratories, Albuquerque, New Mexico 87185, United States
| | - Xin Huang
- Cornell High Energy Synchrotron Source, Cornell University, Ithaca, New York 14853, United States
| | - Zhongwu Wang
- Cornell High Energy Synchrotron Source, Cornell University, Ithaca, New York 14853, United States
| | - Hongyou Fan
- Sandia National Laboratories, Albuquerque, New Mexico 87185, United States.,Department of Chemical and Biological Engineering, Albuquerque, University of New Mexico, Albuquerque, New Mexico 87106, United States.,Center for Integrated Nanotechnologies, Sandia National Laboratories, Albuquerque, New Mexico 87185, United States
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40
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Qammar M, Malik Z, Malik F, Baig T, Chaudhary AJ. Antibacterial activity of Mg1-xNixO(x=0.5) nano-solid solution; experimental and computational approach. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2018.11.040] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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41
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Williamson CB, Nevers DR, Nelson A, Hadar I, Banin U, Hanrath T, Robinson RD. Chemically reversible isomerization of inorganic clusters. Science 2019; 363:731-735. [PMID: 30765565 DOI: 10.1126/science.aau9464] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2018] [Revised: 09/17/2018] [Accepted: 01/16/2019] [Indexed: 01/05/2023]
Abstract
Structural transformations in molecules and solids have generally been studied in isolation, whereas intermediate systems have eluded characterization. We show that a pair of cadmium sulfide (CdS) cluster isomers provides an advantageous experimental platform to study isomerization in well-defined, atomically precise systems. The clusters coherently interconvert over an ~1-electron volt energy barrier with a 140-milli-electron volt shift in their excitonic energy gaps. There is a diffusionless, displacive reconfiguration of the inorganic core (solid-solid transformation) with first order (isomerization-like) transformation kinetics. Driven by a distortion of the ligand-binding motifs, the presence of hydroxyl species changes the surface energy via physisorption, which determines "phase" stability in this system. This reaction possesses essential characteristics of both solid-solid transformations and molecular isomerizations and bridges these disparate length scales.
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Affiliation(s)
- Curtis B Williamson
- Robert F. Smith School of Chemical and Biomolecular Engineering, Cornell University, Ithaca, NY, USA
| | - Douglas R Nevers
- Robert F. Smith School of Chemical and Biomolecular Engineering, Cornell University, Ithaca, NY, USA
| | - Andrew Nelson
- Department of Materials Science and Engineering, Cornell University, Ithaca, NY, USA
| | - Ido Hadar
- Institute of Chemistry and the Center for Nanoscience and Nanotechnology, The Hebrew University, Jerusalem 91904, Israel
| | - Uri Banin
- Institute of Chemistry and the Center for Nanoscience and Nanotechnology, The Hebrew University, Jerusalem 91904, Israel.
| | - Tobias Hanrath
- Robert F. Smith School of Chemical and Biomolecular Engineering, Cornell University, Ithaca, NY, USA.
| | - Richard D Robinson
- Department of Materials Science and Engineering, Cornell University, Ithaca, NY, USA.
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42
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Gribisch P, Schmidt J, Osten HJ, Fissel A. Influence of nanostructure formation on the crystal structure and morphology of epitaxially grown Gd 2O 3 on Si(001). ACTA CRYSTALLOGRAPHICA SECTION B, STRUCTURAL SCIENCE, CRYSTAL ENGINEERING AND MATERIALS 2019; 75:59-70. [PMID: 32830779 DOI: 10.1107/s2052520618017869] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2018] [Accepted: 12/18/2018] [Indexed: 06/11/2023]
Abstract
The influence of growth conditions on the layer orientation, domain structure and crystal structure of gadolinium oxide (Gd2O3) on silicon (001) has been investigated. Gd2O3 was grown at low (250°C) and high (850°C) temperatures with different oxygen partial pressure as well as a temperature ramp up during growth. At low temperature, the cubic bixbyite type of crystal structure with space group Ia{\bar 3} was grown at low oxygen partial pressure. The layers consist of two domains oriented orthogonal to each other. The epitaxial relationships for the two domains were found to be Gd2O3(110)[001]||Si(001)[110] and Gd2O3(110)[001]||Si(001)[{\bar 1}10], respectively. Applying additional oxygen during growth results in a change in crystal and domain structures of the grown layer into the monoclinic Sm2O3-type of structure with space group C2/m with (20\bar 1) orientation and mainly two orthogonal domains with the epitaxial relationship Gd2O3(20\bar 1)[010]||Si(100)〈110〉 and a smooth surface morphology. Some smaller areas have two intermediate azimuthal orientations between these variants, which results in a six-domain structure. The change in crystal structure can be understood based on the Gibbs-Thomson effect caused by the initial nucleation of nanometre-sized islands and its variation in diameter with a change in growth conditions. The crystal structure remains stable even against a temperature ramp up during growth. The layers grown at high temperature exhibit a nanowire-like surface morphology, where the nanowires have a cubic crystal structure and are aligned orthogonal to each other along the 〈110〉 in-plane directions. An increase in oxygen supply results in a reduced length and increased number of nanowires due to lower adatom mobility. The results clearly indicate that both kinetic and thermodynamic factors have a strong impact on the crystal structure, epitaxial relationship and morphology of the grown layers.
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Affiliation(s)
- Philipp Gribisch
- Institute of Electronic Materials and Devices, Leibniz Universität Hannover, Schneiderberg 32, Hannover, 30167, Germany
| | - Jan Schmidt
- Institute of Electronic Materials and Devices, Leibniz Universität Hannover, Schneiderberg 32, Hannover, 30167, Germany
| | - Hans Jörg Osten
- Institute of Electronic Materials and Devices, Leibniz Universität Hannover, Schneiderberg 32, Hannover, 30167, Germany
| | - Andreas Fissel
- Institute of Electronic Materials and Devices, Leibniz Universität Hannover, Schneiderberg 32, Hannover, 30167, Germany
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43
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Liu C, Zheng L, Song Q, Xue Z, Huang C, Liu L, Qiao X, Li X, Liu K, Wang T. A Metastable Crystalline Phase in Two-Dimensional Metallic Oxide Nanoplates. Angew Chem Int Ed Engl 2019; 58:2055-2059. [PMID: 30569617 DOI: 10.1002/anie.201812911] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2018] [Indexed: 11/10/2022]
Abstract
A simple method was adopted in which ultrathin cerium oxide nanoplates (<1.4 nm) were synthesized to increase the surface atomic content, allowing transformation from a face-centered cubic (fcc) phase to a body-centered tetragonal (bct) phase. Three types of cerium oxide nanoparticles of different thicknesses (1.2 nm ultrathin nanoplates, 2.2 nm nanoplates, and 5.4 nm nanocubes) were examined using transmission electron microscopy and X-ray diffraction. The metastable bct phase was observed only in ultrathin nanoplates. Thermodynamic energy analysis confirmed that the surface energy of the ultrathin nanoplates is the cause of the remarkable stabilization of the metastable bct phase. The mechanism of surface energy regulation can be expanded to other metallic oxides, thus providing a new means for manipulating and stabilizing novel materials under ambient conditions that otherwise would not be recovered.
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Affiliation(s)
- Cong Liu
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences(CAS), Beijing, 100190, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Lirong Zheng
- Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Sciences (CAS), Beijing, 100049, China
| | - Qian Song
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences(CAS), Beijing, 100190, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Zhenjie Xue
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences(CAS), Beijing, 100190, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Chuanhui Huang
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences(CAS), Beijing, 100190, China
| | - Lu Liu
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences(CAS), Beijing, 100190, China
| | - Xuezhi Qiao
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences(CAS), Beijing, 100190, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xiao Li
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences(CAS), Beijing, 100190, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Keyan Liu
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences(CAS), Beijing, 100190, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Tie Wang
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences(CAS), Beijing, 100190, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
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44
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Liu C, Zheng L, Song Q, Xue Z, Huang C, Liu L, Qiao X, Li X, Liu K, Wang T. A Metastable Crystalline Phase in Two-Dimensional Metallic Oxide Nanoplates. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201812911] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Cong Liu
- Beijing National Laboratory for Molecular Sciences; Key Laboratory of Analytical Chemistry for Living Biosystems; Institute of Chemistry; Chinese Academy of Sciences(CAS); Beijing 100190 China
- University of Chinese Academy of Sciences; Beijing 100049 China
| | - Lirong Zheng
- Beijing Synchrotron Radiation Facility; Institute of High Energy Physics; Chinese Academy of Sciences (CAS); Beijing 100049 China
| | - Qian Song
- Beijing National Laboratory for Molecular Sciences; Key Laboratory of Analytical Chemistry for Living Biosystems; Institute of Chemistry; Chinese Academy of Sciences(CAS); Beijing 100190 China
- University of Chinese Academy of Sciences; Beijing 100049 China
| | - Zhenjie Xue
- Beijing National Laboratory for Molecular Sciences; Key Laboratory of Analytical Chemistry for Living Biosystems; Institute of Chemistry; Chinese Academy of Sciences(CAS); Beijing 100190 China
- University of Chinese Academy of Sciences; Beijing 100049 China
| | - Chuanhui Huang
- Beijing National Laboratory for Molecular Sciences; Key Laboratory of Analytical Chemistry for Living Biosystems; Institute of Chemistry; Chinese Academy of Sciences(CAS); Beijing 100190 China
| | - Lu Liu
- Beijing National Laboratory for Molecular Sciences; Key Laboratory of Analytical Chemistry for Living Biosystems; Institute of Chemistry; Chinese Academy of Sciences(CAS); Beijing 100190 China
| | - Xuezhi Qiao
- Beijing National Laboratory for Molecular Sciences; Key Laboratory of Analytical Chemistry for Living Biosystems; Institute of Chemistry; Chinese Academy of Sciences(CAS); Beijing 100190 China
- University of Chinese Academy of Sciences; Beijing 100049 China
| | - Xiao Li
- Beijing National Laboratory for Molecular Sciences; Key Laboratory of Analytical Chemistry for Living Biosystems; Institute of Chemistry; Chinese Academy of Sciences(CAS); Beijing 100190 China
- University of Chinese Academy of Sciences; Beijing 100049 China
| | - Keyan Liu
- Beijing National Laboratory for Molecular Sciences; Key Laboratory of Analytical Chemistry for Living Biosystems; Institute of Chemistry; Chinese Academy of Sciences(CAS); Beijing 100190 China
- University of Chinese Academy of Sciences; Beijing 100049 China
| | - Tie Wang
- Beijing National Laboratory for Molecular Sciences; Key Laboratory of Analytical Chemistry for Living Biosystems; Institute of Chemistry; Chinese Academy of Sciences(CAS); Beijing 100190 China
- University of Chinese Academy of Sciences; Beijing 100049 China
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45
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Chen W, Karton A, Hussian T, Javaid S, Wang F, Pang Y, Jia G. Spontaneous shape and phase control of colloidal ZnSe nanocrystals by tailoring Se precursor reactivity. CrystEngComm 2019. [DOI: 10.1039/c9ce00078j] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel synthetic method of shape and phase control of ZnSe nanocrystals by tailoring Se precursor reactivity is reported.
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Affiliation(s)
- Wei Chen
- Curtin Institute of Functional Molecules and Interfaces
- School of Molecular and Life Sciences
- Curtin University
- Bentley
- Australia
| | - Amir Karton
- School of Molecular Sciences
- The University of Western Australia
- 6009 Perth
- Australia
| | - Tanveer Hussian
- School of Molecular Sciences
- The University of Western Australia
- 6009 Perth
- Australia
| | - Shaghraf Javaid
- Curtin Institute of Functional Molecules and Interfaces
- School of Molecular and Life Sciences
- Curtin University
- Bentley
- Australia
| | - Fei Wang
- Curtin Institute of Functional Molecules and Interfaces
- School of Molecular and Life Sciences
- Curtin University
- Bentley
- Australia
| | - Yingping Pang
- Curtin Institute of Functional Molecules and Interfaces
- School of Molecular and Life Sciences
- Curtin University
- Bentley
- Australia
| | - Guohua Jia
- Curtin Institute of Functional Molecules and Interfaces
- School of Molecular and Life Sciences
- Curtin University
- Bentley
- Australia
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46
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Li Q, Niu W, Liu X, Chen Y, Wu X, Wen X, Wang Z, Zhang H, Quan Z. Pressure-Induced Phase Engineering of Gold Nanostructures. J Am Chem Soc 2018; 140:15783-15790. [DOI: 10.1021/jacs.8b08647] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Qian Li
- Department of Chemistry, Southern University of Science and Technology (SUSTech), Shenzhen, Guangdong 518055, P. R. China
| | - Wenxin Niu
- Center for Programmable Materials, School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore
| | - Xingchen Liu
- Department of Chemistry and Chemical Biology, Baker Laboratory, Cornell University, Ithaca, New York 14853, United States
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, P. R. China
| | - Ye Chen
- Center for Programmable Materials, School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore
| | - Xiaotong Wu
- Department of Chemistry, Southern University of Science and Technology (SUSTech), Shenzhen, Guangdong 518055, P. R. China
| | - Xiaodong Wen
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, P. R. China
| | - Zhongwu Wang
- Cornell High Energy Synchrotron Source (CHESS), Cornell University, Ithaca, New York 14853, United States
| | - Hua Zhang
- Center for Programmable Materials, School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore
| | - Zewei Quan
- Department of Chemistry, Southern University of Science and Technology (SUSTech), Shenzhen, Guangdong 518055, P. R. China
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47
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Osman M, Abd-Elrahim A, Othman A. Size-dependent structural phase transitions and their correlation with photoluminescence and optical absorption behavior of annealed Zn0.45Cd0.55S quantum dots. MATERIALS CHARACTERIZATION 2018; 144:247-263. [DOI: 10.1016/j.matchar.2018.07.020] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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48
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Zhang B, Zhu T, Ou M, Rowell N, Fan H, Han J, Tan L, Dove MT, Ren Y, Zuo X, Han S, Zeng J, Yu K. Thermally-induced reversible structural isomerization in colloidal semiconductor CdS magic-size clusters. Nat Commun 2018; 9:2499. [PMID: 29950666 PMCID: PMC6021431 DOI: 10.1038/s41467-018-04842-0] [Citation(s) in RCA: 62] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2017] [Accepted: 05/30/2018] [Indexed: 01/22/2023] Open
Abstract
Structural isomerism of colloidal semiconductor nanocrystals has been largely unexplored. Here, we report one pair of structural isomers identified for colloidal nanocrystals which exhibit thermally-induced reversible transformations behaving like molecular isomerization. The two isomers are CdS magic-size clusters with sharp absorption peaks at 311 and 322 nm. They have identical cluster masses, but slightly different structures. Furthermore, their interconversions follow first-order unimolecular reaction kinetics. We anticipate that such isomeric kinetics are applicable to a variety of small-size functional nanomaterials, and that the methodology developed for our kinetic study will be helpful to investigate and exploit solid–solid transformations in other semiconductor nanocrystals. The findings on structural isomerism should stimulate attention toward advanced design and synthesis of functional nanomaterials enabled by structural transformations. Few structural isomers of colloids, with identical masses but different structures, have been identified. Here, the authors observe an interesting example of structural isomerism in a pair of semiconductor magic-size clusters, which reversibly transform between one another with first-order unimolecular reaction kinetics.
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Affiliation(s)
- Baowei Zhang
- Institute of Atomic and Molecular Physics, Sichuan University, 610065, Chengdu, PR China
| | - Tingting Zhu
- Institute of Atomic and Molecular Physics, Sichuan University, 610065, Chengdu, PR China
| | - Mingyang Ou
- School of Materials Science and Engineering, Huazhong University of Science & Technology, 430074, Wuhan, PR China
| | - Nelson Rowell
- National Research Council of Canada, Ottawa, Ontario, K1A 0R6, Canada
| | - Hongsong Fan
- Engineering Research Center in Biomaterials, Sichuan University, 610065, Chengdu, PR China
| | - Jiantao Han
- School of Materials Science and Engineering, Huazhong University of Science & Technology, 430074, Wuhan, PR China
| | - Lei Tan
- School of Physics and Astronomy, Queen Mary University of London, London, E1 4NS, UK
| | - Martin T Dove
- School of Physics and Astronomy, Queen Mary University of London, London, E1 4NS, UK.,School of Physical Science and Technology, Sichuan University, 610065, Chengdu, PR China
| | - Yang Ren
- X-ray Science Division, Advanced Photon Source, Argonne National Laboratory, Lemont, IL, 60439, USA
| | - Xiaobing Zuo
- X-ray Science Division, Advanced Photon Source, Argonne National Laboratory, Lemont, IL, 60439, USA
| | - Shuo Han
- Institute of Atomic and Molecular Physics, Sichuan University, 610065, Chengdu, PR China.
| | - Jianrong Zeng
- Shanghai Synchrotron Radiation Facility, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, 201204, Shanghai, PR China.
| | - Kui Yu
- Institute of Atomic and Molecular Physics, Sichuan University, 610065, Chengdu, PR China. .,Engineering Research Center in Biomaterials, Sichuan University, 610065, Chengdu, PR China. .,School of Chemical Engineering, Sichuan University, 610065, Chengdu, PR China.
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49
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Liu X, Li X, Xu W, Zhang X, Huang Z, Wang F, Liu J. Sub-Angstrom Gold Nanoparticle/Liposome Interfaces Controlled by Halides. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:6628-6635. [PMID: 29741377 DOI: 10.1021/acs.langmuir.8b01138] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
A hallmark of nanoscience is size-dependent and distance-dependent physical properties. Although most previous studies focused on optical properties, which are often tuned at nanometer scale, we herein report on the interaction between halide-capped gold nanoparticles (AuNPs) and phosphocholine (PC) liposomes at the sub-Angstrom level. Halide-capped AuNPs are adsorbed by PC liposomes attributable to van der Waals force. Iodide-capped AuNPs interact much more weakly with the liposomes compared with bromide- and chloride-capped AuNPs, as indicated by a liposome leakage assay and differential scanning calorimetry. This is explained by the slightly larger size of iodide separating the AuNP core more from the liposome surface. Cryo-transmission electron microscopy indicates that the liposomes remain intact when mixed with these halide-capped AuNPs of 13 or 70 nm in diameter. Other even larger ligands, including small thiol compounds, DNA oligonucleotides, proteins, and polymers, fully blocked the interaction, whereas AuNPs dispersed in noninteracting ions, including fluoride, phosphate, perchlorate, nitrate, sulfate, and bicarbonate, are still adsorbed strongly by 1,2-dioleoyl- sn-glycero-3-phosphocholine liposomes. Taken together, halides can be used to control interparticle distances at an extremely small scale with remarkable effects on materials properties, allowing surface probing, biosensor development, and fundamental surface science studies.
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Affiliation(s)
- Xiuru Liu
- School of Biological and Medical Engineering , Hefei University of Technology , Hefei , Anhui 230009 , China
| | - Xiaoqiu Li
- Center of Intervention Radiology, Center of Precise Medicine , Zhuhai People's Hospital , No. 79 Kangning Road , Zhuhai , Guangdong Province 519000 , China
| | - Wu Xu
- School of Biological and Medical Engineering , Hefei University of Technology , Hefei , Anhui 230009 , China
| | - Xiaohan Zhang
- Department of Chemistry, Waterloo Institute for Nanotechnology , University of Waterloo , Waterloo , Ontario N2L 3G1 , Canada
| | - Zhicheng Huang
- Department of Chemistry, Waterloo Institute for Nanotechnology , University of Waterloo , Waterloo , Ontario N2L 3G1 , Canada
| | - Feng Wang
- School of Biological and Medical Engineering , Hefei University of Technology , Hefei , Anhui 230009 , China
- Department of Chemistry, Waterloo Institute for Nanotechnology , University of Waterloo , Waterloo , Ontario N2L 3G1 , Canada
| | - Juewen Liu
- Department of Chemistry, Waterloo Institute for Nanotechnology , University of Waterloo , Waterloo , Ontario N2L 3G1 , Canada
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50
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Kim T, Lim S, Hong J, Kwon SG, Okamoto J, Chen ZY, Jeong J, Kang S, Leiner JC, Lim JT, Kim CS, Huang DJ, Hyeon T, Lee S, Park JG. Giant thermal hysteresis in Verwey transition of single domain Fe 3O 4 nanoparticles. Sci Rep 2018; 8:5092. [PMID: 29572467 PMCID: PMC5865112 DOI: 10.1038/s41598-018-23456-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2017] [Accepted: 03/13/2018] [Indexed: 11/10/2022] Open
Abstract
Most interesting phenomena of condensed matter physics originate from interactions among different degrees of freedom, making it a very intriguing yet challenging question how certain ground states emerge from only a limited number of atoms in assembly. This is especially the case for strongly correlated electron systems with overwhelming complexity. The Verwey transition of Fe3O4 is a classic example of this category, of which the origin is still elusive 80 years after the first report. Here we report, for the first time, that the Verwey transition of Fe3O4 nanoparticles exhibits size-dependent thermal hysteresis in magnetization, 57Fe NMR, and XRD measurements. The hysteresis width passes a maximum of 11 K when the size is 120 nm while dropping to only 1 K for the bulk sample. This behavior is very similar to that of magnetic coercivity and the critical sizes of the hysteresis and the magnetic single domain are identical. We interpret it as a manifestation of charge ordering and spin ordering correlation in a single domain. This work paves a new way of undertaking researches in the vibrant field of strongly correlated electron physics combined with nanoscience.
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Affiliation(s)
- Taehun Kim
- Center for Correlated Electron Systems, Institute for Basic Science, Seoul, 08826, Korea.,Department of Physics & Astronomy, Seoul National University, Seoul, 08826, Korea
| | - Sumin Lim
- Department of Physics, Korea Advanced Institute of Science and Technology, Daejeon, 34141, Korea
| | - Jaeyoung Hong
- Center for Nanoparticle Research, Institute for Basic Science, Seoul, 08826, Korea.,School of Chemical and Biological Engineering, Seoul National University, Seoul, 08826, Korea
| | - Soon Gu Kwon
- Center for Nanoparticle Research, Institute for Basic Science, Seoul, 08826, Korea.,School of Chemical and Biological Engineering, Seoul National University, Seoul, 08826, Korea
| | - Jun Okamoto
- National Synchrotron Radiation Research Center, Hsinchu, 30076, Taiwan
| | - Zhi Ying Chen
- Department of Physics, National Tsing Hua University, Hsinchu, 30013, Taiwan
| | - Jaehong Jeong
- Center for Correlated Electron Systems, Institute for Basic Science, Seoul, 08826, Korea.,Department of Physics & Astronomy, Seoul National University, Seoul, 08826, Korea
| | - Soonmin Kang
- Center for Correlated Electron Systems, Institute for Basic Science, Seoul, 08826, Korea.,Department of Physics & Astronomy, Seoul National University, Seoul, 08826, Korea
| | - Jonathan C Leiner
- Center for Correlated Electron Systems, Institute for Basic Science, Seoul, 08826, Korea.,Department of Physics & Astronomy, Seoul National University, Seoul, 08826, Korea
| | - Jung Tae Lim
- Department of Physics, Kookmin University, Seoul, 02703, Korea
| | - Chul Sung Kim
- Department of Physics, Kookmin University, Seoul, 02703, Korea
| | - Di Jing Huang
- National Synchrotron Radiation Research Center, Hsinchu, 30076, Taiwan.,Department of Physics, National Tsing Hua University, Hsinchu, 30013, Taiwan
| | - Taeghwan Hyeon
- Center for Nanoparticle Research, Institute for Basic Science, Seoul, 08826, Korea.,School of Chemical and Biological Engineering, Seoul National University, Seoul, 08826, Korea
| | - Soonchil Lee
- Department of Physics, Korea Advanced Institute of Science and Technology, Daejeon, 34141, Korea
| | - Je-Geun Park
- Center for Correlated Electron Systems, Institute for Basic Science, Seoul, 08826, Korea. .,Department of Physics & Astronomy, Seoul National University, Seoul, 08826, Korea.
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