Accounts of Materials Research

ConspectusSelf-healing ability is one of the most attractive features of biological tissues, as it helps living creatures to recover physiological functions and prolongs their lifespans after unexpected injuries. Inspired by this feature, self-healing artificial polymers have been developed based on extrinsic and intrinsic designs since the 1950s. In particular, the intrinsic self-healing polymers have received enormous attention since 2001 because of their unlimited self-healing times and easy preparation. Therefore, many excellent works are reported, and our understanding of the self-healing polymer goes deeper and deeper. Self-healing is the process of the rejoining of the dynamic bonds/interactions. Therefore, the healing process involves two critical factors. One is the dynamic nature of dynamic bonds/interactions. The other is the high mobility of the polymer chains. However, the dynamic bonds/interactions are vulnerable to external forces and environmental stimuli because their bond energy is lower than that of the covalent bonds, which leads to several innate drawbacks of intrinsic self-healing polymers, such as poor mechanical properties (low fracture strength, low fracture strain, low modulus, and low fracture toughness) and poor resistance against the external environment (vulnerable to acid, alkali, or moisture). Also, since high chain mobility is also a prerequisite for intrinsic self-healing, most polymers cannot be healed in the glassy state where the polymer chains are frozen. Therefore, it is challenging to develop high-performance self-healing polymers, which not only possess high mechanical strength, toughness, and stability under ambient conditions or severe environments but also manifest high self-healing efficiency in the rubbery state or even in the glassy state. Therefore, how to overcome this challenge has become a hot topic in the field of self-healing polymers.To address the above problem, many high-performance self-healing polymers with high mechanical properties, high self-healing ability, or high environmental stability are published by using different strategies. These strategies are effective at enhancing the mechanical properties or increasing its environmental stability and are worth learning about. Our group has carried out some work in this field. In this Account, we highlight our works toward fabricating high-performance self-healing polymers. We summarize the high-performance self-healing polymers from three aspects: self-healing polymers with high mechanical properties (such as high toughness, tensile strength, stretchability, and modulus), glassy polymers capable of self-healing in the glassy state, and environmentally stable self-healing polymers. In particular, strategies based on tailoring molecular-level structure, condensed structure, and filler reinforcement are discussed in detail to construct self-healing polymers with high mechanical properties. Finally, the future development of intrinsic self-healing polymers is examined from the perspective of practical application and fundamental research.

Yan Peng

Shiyu Gu

Qi Wu

Zhengtian Xie

Jinrong Wu

High-Performance Self-Healing Polymers

Wanpeng Lu

Dukula De Alwis Jayasinghe

Martin Schröder

Sihai Yang

Ammonia Storage in Metal–Organic Framework Materials: Recent Developments in Design and Characterization

金属有机框架材料中的氨存储：设计和表征的最新进展

Zhifang Zhou

Rui Wei

Xuefan Zhou

Yuan Liu

Dou Zhang

Yuan-Hua Lin

Chemical Bonding Engineering: Insights into Physicochemical Performance Optimization for Energy-Storage/Conversion

化学键工程：能源储存/转换物理化学性能优化的见解

CONSPECTUS: Two-dimensional (2D) compound materials are promising materials for use in electronics, optoelectronics, flexible devices, etc. because they are ultrathin and cover a wide range of properties. Among all methods to prepare 2D materials, chemical vapor deposition (CVD) is promising because it produces materials with a high quality and reasonable cost. So far, much efforts have been made to produce 2D compound materials with large domain size, controllable number of layers, fast-growth rate, and high quality features, etc. However, due to the complicated growth mechanism like sublimation and diffusion processes of multiple precursors, maintaining the controllability, repeatability, and high quality of CVD grown 2D binary and ternary materials is still a big challenge, which prevents their widespread use. Here, taking 2D transition metal dichalcogenides (TMDCs) as examples, we review current progress and highlight some promising growth strategies for the growth of 2D compound materials. The key technology issues which affect the CVD process, including non-metal precursor, metal precursor, substrate engineering, temperature, and gas flow, are discussed. Also, methods in improving the quality of CVD-grown 2D materials and current understanding on their growth mechanism are highlighted. Finally, challenges and opportunities in this field are proposed. We believe this review will guide the future design of controllable CVD systems for the growth of 2D compound materials with good controllability and high quality, laying the foundations for their potential applications.

Lei Tang

Junyang Tan

Huiyu Nong

Bilu Liu

Hui-Ming Cheng

Acc. Mater. Res.

Chemical Vapor Deposition Growth of Two-Dimensional Compound Materials: Controllability, Material Quality, and Growth Mechanism

二维化合物材料的化学气相沉积生长：可控性、材料质量和生长机理

ADVERTISEMENT RETURN TO ISSUEPREVViewpointNEXTBattery Materials Design EssentialsM. Rosa Palacin*M. Rosa PalacinInstitut de Ciència de Materials de Barcelona, ICMAB-CSIC, Campus UAB, 08193 Bellaterra, Catalonia, Spain*Email: [email protected]More by M. Rosa PalacinView Biographyhttp://orcid.org/0000-0001-7351-2005Cite this: Acc. Mater. Res. 2021, 2, 5, 319–326Publication Date (Web):April 13, 2021Publication History Received5 February 2021Published online13 April 2021Published inissue 28 May 2021https://pubs.acs.org/doi/10.1021/accountsmr.1c00026https://doi.org/10.1021/accountsmr.1c00026article-commentaryACS PublicationsCopyright © 2021 Accounts of Materials Research. Co-published by ShanghaiTech University and American Chemical Society. All rights reserved. This publication is licensed under CC-BY-NC-ND 4.0. License Summary*You are free to share (copy and redistribute) this article in any medium or format within the parameters below:Creative Commons (CC): This is a Creative Commons license.Attribution (BY): Credit must be given to the creator.Non-Commercial (NC): Only non-commercial uses of the work are permitted. No Derivatives (ND): Derivative works may be created for non-commercial purposes, but sharing is prohibited. View full license*DisclaimerThis summary highlights only some of the key features and terms of the actual license. It is not a license and has no legal value. Carefully review the actual license before using these materials. This publication is Open Access under the license indicated. Learn MoreArticle Views10167Altmetric-Citations17LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InRedditEmail PDF (3 MB) Get e-AlertscloseSUBJECTS:Batteries,Electrodes,Electrolytes,Materials,Redox reactions Get e-Alerts

M. Rosa Palacin

Battery Materials Design Essentials

电池材料设计要点

Xiaofeng Huang

Binghui Wu

Nanfeng Zheng

Optimizing Solvent Chemistry for High-Quality Halide Perovskite Films

优化溶剂化学制备高质量卤化物钙钛矿薄膜

ConspectusMethane (CH4), which is the main component of natural gas, is an abundant and widely available carbon resource. However, CH4 has a low energy density of only 36 kJ L–1 under ambient conditions, which is significantly lower than that of gasoline (ca. 34 MJ L–1). The activation and catalytic conversion of CH4 into value-added chemicals [e.g., methanol (CH3OH), which has an energy density of ca. 17 MJ L–1], can effectively lift its energy density. However, this conversion is highly challenging due to the inert nature of CH4, characterized by its strong C–H bonds and high stability. Consequently, the development of efficient materials that can optimize the binding and activation pathway of CH4 with control of product selectivity has attracted considerable recent interest. Metal–organic framework (MOF) materials have emerged as particularly attractive candidates for the development of efficient sorbents and heterogeneous catalysts due to their high porosity, low density, high surface area and structural versatility. These properties enable MOFs to act as effective platforms for the adsorption, binding and catalytic conversion of CH4 into valuable chemicals. Recent reports have highlighted MOFs as promising materials for these applications, leading to new insights into the structure–activity relationships that govern their performance in various systems.In this Account, we present analysis of state-of-the-art MOF-based sorbents and catalysts, particularly focusing on materials that incorporate well-defined active sites within confined space. The precise control of these active sites and their surrounding microenvironment is crucial as it directly influences the efficiency of CH4 activation and the selectivity of the resulting chemical products. Our discussion covers key reactions involving CH4, including its activation, selective oxidation of CH4 to CH3OH, dry reforming of CH4, nonoxidative coupling of CH4, and borylation of CH4. We analyze the role of active sites and their microenvironment in the binding and activation of CH4 using a wide range of experimental and computational studies, including neutron diffraction, inelastic neutron scattering, and electron paramagnetic resonance, solid-state nuclear magnetic resonance, infrared and X-ray absorption spectroscopies coupled to density functional theory calculations. In particular, neutron scattering has notable advantages in elucidating host–guest interactions and the mechanisms of the conversion and catalysis of CH4 and CD4. In addition to exploring current advances, the limitations and future direction of research in this area are also discussed. Key challenges include improvements in the stability, scalability, and performance of MOFs under practical conditions, as well as achieving higher selectivity and yields of targeted products. The ongoing development of MOFs and related materials holds great promise for the efficient and sustainable utilization of CH4, transforming it from a low-density energy source into a versatile precursor for a wide range of value-added chemicals. This Account summarizes the design and development of functional MOF and related materials for the adsorption and conversion of CH4.

Bing An

Yujie Ma

Xue Han

Activation and Catalysis of Methane over Metal–Organic Framework Materials

金属有机框架材料对甲烷的活化和催化作用

Shang-Qi Li

Jia-Ning Yang

Kai-Xue Wang

Jie-Sheng Chen

Optimization Strategies for Cathode Materials in Lithium–Oxygen Batteries

锂-氧电池阴极材料的优化策略

Linyuan Wen

Yinglei Wang

Yingzhe Liu

Data-Driven Combinatorial Design of Highly Energetic Materials

数据驱动的组合设计高能材料

Yi-Chen Yin

Jin-Da Luo

Hong-Bin Yao

UCl<sub>3</sub>-Type Solid Electrolytes: Fast Ionic Conduction and Enhanced Electrode Compatibility

UCl<sub>3</sub>型固体电解质：快速离子传导与增强电极兼容性

短名	Acc. Mater. Res.
Journal Impact	13.89
国际分区	MATERIALS SCIENCE, MULTIDISCIPLINARY(Q1)
期刊索引	中科院 1 区

ISSN	2643-6728
h-index	39
国内分区	材料科学(1区)材料科学化学综合(1区)材料科学材料科学综合(1区)

出版信息	出版商: American Chemical Society，出版周期: ，期刊类型: journal，开源期刊: 否
基本数据	创刊年份: 2020，原创研究文献占比: 100.00%，自引率:， Gold OA占比: 3.07%

Accounts of Materials Research

期刊引文格式

有 1 位以上作者的期刊

有 2 位作者的期刊

有 3 位作者的期刊

有 5 位以上作者的期刊

书籍引用格式

学位论文引用格式

网页引用格式

专利引用格式

手工熬夜修改参考文献？研飞自动匹配期刊，一键轻松成稿，支持 Word/WPS

投稿经验分享

High-Performance Self-Healing Polymers

Ammonia Storage in Metal–Organic Framework Materials: Recent Developments in Design and Characterization

Chemical Bonding Engineering: Insights into Physicochemical Performance Optimization for Energy-Storage/Conversion

Chemical Vapor Deposition Growth of Two-Dimensional Compound Materials: Controllability, Material Quality, and Growth Mechanism

Battery Materials Design Essentials

Optimizing Solvent Chemistry for High-Quality Halide Perovskite Films

Activation and Catalysis of Methane over Metal–Organic Framework Materials

Optimization Strategies for Cathode Materials in Lithium–Oxygen Batteries

Data-Driven Combinatorial Design of Highly Energetic Materials

UCl₃-Type Solid Electrolytes: Fast Ionic Conduction and Enhanced Electrode Compatibility

Accounts of Materials Research

期刊引文格式

有 1 位以上作者的期刊

有 2 位作者的期刊

有 3 位作者的期刊

有 5 位以上作者的期刊

书籍引用格式

学位论文引用格式

网页引用格式

专利引用格式

手工熬夜修改参考文献？研飞自动匹配期刊，一键轻松成稿，支持 Word/WPS

投稿经验分享

High-Performance Self-Healing Polymers

Ammonia Storage in Metal–Organic Framework Materials: Recent Developments in Design and Characterization

Chemical Bonding Engineering: Insights into Physicochemical Performance Optimization for Energy-Storage/Conversion

Chemical Vapor Deposition Growth of Two-Dimensional Compound Materials: Controllability, Material Quality, and Growth Mechanism

Battery Materials Design Essentials

Optimizing Solvent Chemistry for High-Quality Halide Perovskite Films

Activation and Catalysis of Methane over Metal–Organic Framework Materials

Optimization Strategies for Cathode Materials in Lithium–Oxygen Batteries

Data-Driven Combinatorial Design of Highly Energetic Materials

UCl3-Type Solid Electrolytes: Fast Ionic Conduction and Enhanced Electrode Compatibility

UCl₃-Type Solid Electrolytes: Fast Ionic Conduction and Enhanced Electrode Compatibility