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Large Magnetostriction from Morphotropic Phase Boundary in Ferromagnets

Physical Review Letters 2010年第19期104卷 197201-197201页

作者： Sen Yang Huixin Bao Chao Zhou Yu Wang Xiaobing Ren Yoshitaka Matsushita Yoshio Katsuya Masahiko Tanaka Keisuke Kobayashi Xiaoping Song Jianrong Gao Multi-disciplinary Materials Research Center Frontier Institute of Science and Technology State Key Laboratory for Mechanical Behavior of Materials and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter Xi’an Jiaotong University Xi’an 710049 China Ferroic Physics Group National Institute for Materials Science Tsukuba 305-0047 Ibaraki Japan National Institute for Materials Science Beamline BL15XU Spring-8 1-1-1 Kohto Sayo-cho Hyogo 679-5148 Japan Key Lab of Electromagnetic Processing of Material Northeastern University 3-11 Wenhua Road Shenyang 110004 China

For more than half of a century, morphotropic phase boundary (MPB) in ferroelectric materials has drawn constant interest because it can significantly enhance the piezoelectric properties. However, MPB has been studied merely in ferroelectric systems, not in another large class of ferroic systems, the ferromagnets. In this Letter, we report the existence of an MPB in a ferromagnetic system TbCo2−DyCo2. Such a magnetic MPB involves a first-order magnetoelastic transition, at which both magnetization direction and crystal structure change simultaneously. The MPB composition demonstrates a 3–6 times larger “figure of merit” of magnetostrictive response compared with that of the off-MPB compositions. The finding of MPB in ferromagnets may help to discover novel high-performance magnetostrictive and even magnetoelectric materials.

关键词： Ferromagnetism

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Fabrication of Al-W Functionally Graded Impact material via Vacuum Hot-Pressing Sintering Method

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Journal of Physics: Conference Series 2013年第1期419卷

作者： Pingan Chen Guoqiang Luo Yinghu Liu Qiang Shen Lianmeng Zhang State Key Lab of Advanced Technnology for Materials Synthesis and Processing Wuhan University of Technology 122 Luoshi Road Wuhan 430070 P.R.China

Dense graded material as a type of functionally graded material (FGM) changes its wave impedance gradually along the thickness direction. In this investigation, Al-W functionally graded material was fabricated via vacuum hot-pressing sintering method (VHPS). The results showed that densified Al-W composite was fabricated at 550°C-300MPa-120min which the relative density was higher than 98.5% without intermetallic compounds. The density graded material of Al-W FGM was attained at the optimized parameters which the component of Al was from 10% to 100%. The micro structure of Al-W FGM composite indicated that W particles in single-layer composite were distributed homogeneously. The density of each layer in Al-W FGM composite was consistent with the design value.

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二维材料最新研究进展

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物理化学学报 2021年第12期37卷 1-151页

作者：常诚陈伟陈也陈永华陈雨丁峰樊春海范红金范战西龚成宫勇吉何其远洪勋胡晟胡伟达黄维黄元季威李德慧李连忠李强林立凌崇益刘鸣华刘楠刘庄 Kian Ping Loh 马建民缪峰彭海琳邵明飞宋礼苏邵孙硕谭超良唐智勇王定胜王欢王金兰王欣王欣然 Andrew T.S.Wee 魏钟鸣吴宇恩吴忠帅熊杰熊启华徐伟高尹鹏曾海波曾志远翟天佑张晗张辉张其春张铁锐张翔赵立东赵美廷赵伟杰赵运宣周凯歌周兴周喻朱宏伟张华刘忠范 Institute of Science and Technology Austria Am Campus 13400 KlosterneuburgAustria Department of Chemistry National University of Singapore3 Science Drive 3117543Singapore Department of Chemistry The Chinese University of Hong KongShatinNew TerritoriesHong KongChina Key Laboratory of Flexible Electronics and Institute of Advanced Materials Nanjing Tech UniversityNanjing 211816China School of Life Sciences Shanghai UniversityShanghai 200444China Centre for Multidimensional Carbon Materials Institute for Basic ScienceUlsan 44919Korea School of Chemistry and Chemical Engineering Shanghai Jiao Tong UniversityShanghai 200240China School of Physical and Mathematical Sciences Nanyang Technological UniversitySingapore 637371Singapore Department of Chemistry City University of Hong KongKowloonHong KongChina Department of Electrical and Computer Engineering and Quantum Technology Center University of MarylandCollege ParkMaryland 20742USA School of Materials Science and Engineering Beihang UniversityBeijing 100191China Department of Materials Science and Engineering City University of Hong KongKowloonHong KongChina Center of Advanced Nanocatalysis(CAN) Hefei National Laboratory for Physical Sciences at the MicroscaleDepartment of Applied ChemistryUniversity of Science and Technology of ChinaHefei 230026China College of Chemistry and Chemical Engineering State Key Laboratory of Physical Chemistry of Solid SurfacesCollaborative Innovation Center of Chemistry for Energy Materials(iChEM)Xiamen UniversityXiamen361005Fujian ProvinceChina State Key Laboratory of Infrared Physics Shanghai Institute of Technical PhysicsChinese Academy of SciencesShanghai 200083China Advanced Research Institute of Multidisciplinary Science Beijing Institute of TechnologyBeijing100081China Beijing Key Laboratory of Optoelectronic Functional Materials&Micro-Nano Devices Department of PhysicsRenmin University of ChinaBeijing 100872China School of Optical and Electronic Information Wuhan National Laboratory

Research on two-dimensional(2D) materials has been explosively increasing in last seventeen years in varying subjects including condensed matter physics, electronic engineering, materials science, and chemistry since the mechanical exfoliation of graphene in 2004. Starting from graphene, 2D materials now have become a big family with numerous members and diverse categories. The unique structural features and physicochemical properties of 2D materials make them one class of the most appealing candidates for a wide range of potential applications. In particular, we have seen some major breakthroughs made in the field of 2D materials in last five years not only in developing novel synthetic methods and exploring new structures/properties but also in identifying innovative applications and pushing forward commercialisation. In this review, we provide a critical summary on the recent progress made in the field of 2D materials with a particular focus on last five years. After a brief backgroundintroduction, we first discuss the major synthetic methods for 2D materials, including the mechanical exfoliation, liquid exfoliation, vapor phase deposition, and wet-chemical synthesis as well as phase engineering of 2D materials belonging to the field of phase engineering of nanomaterials(PEN). We then introduce the superconducting/optical/magnetic properties and chirality of 2D materials along with newly emerging magic angle 2D superlattices. Following that, the promising applications of 2D materials in electronics, optoelectronics, catalysis, energy storage, solar cells, biomedicine, sensors, environments, etc. are described sequentially. Thereafter, we present the theoretic calculations and simulations of 2D materials. Finally, after concluding the current progress, we provide some personal discussions on the existing challenges and future outlooks in this rapidly developing field.

关键词： Two-dimensional materials Transition metal dichalcogenides Phase engineering of nanomaterials Electronics Optoelectronics Catalysis Energy storage and conversion

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Applications of hierarchically structured porous materials from energy storage and conversion, catalysis, photocatalysis, adsorption, separation, and sensing to biomedicine

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Chemical Society reviews 2016年第12期45卷 3479-563页

作者： Ming-Hui Sun Shao-Zhuan Huang Li-Hua Chen Yu Li Xiao-Yu Yang Zhong-Yong Yuan Bao-Lian Su State Key Laboratory of Advanced Technology for Material Synthesis and Processing Wuhan University of Technology Luoshi Road 122 Wuhan 430070 China. chenlihua@*** baoliansu@***. Collaborat Innovat. Ctr. Chem. Sci. & Engn. Tianjin Key Lab. Adv. Energy Mat. Chem. Minist. Educ. Coll. Chem. Nankai Univ. Tianjin 300071 China. State Key Laboratory of Advanced Technology for Material Synthesis and Processing Wuhan University of Technology Luoshi Road 122 Wuhan 430070 China. chenlihua@*** baoliansu@*** and Laboratory of Inorganic Materials Chemistry (CMI) University of Namur 61 rue de Bruxelles B-5000 Namur Belgium. bao-lian.su@unamur.be and Clare Hall University of Cambridge Cambridge CB2 1EW UK. bls26@cam.ac.uk.

Over the last decade, significant effort has been devoted to the applications of hierarchically structured porous materials owing to their outstanding properties such as high surface area, excellent accessibility to active sites, and enhanced mass transport and diffusion. The hierarchy of porosity, structural, morphological and component levels in these materials is key for their high performance in all kinds of applications. The introduction of hierarchical porosity into materials has led to a significant improvement in the performance of materials. Herein, recent progress in the applications of hierarchically structured porous materials from energy conversion and storage, catalysis, photocatalysis, adsorption, separation, and sensing to biomedicine is reviewed. Their potential future applications are also highlighted. We particularly dwell on the relationship between hierarchically porous structures and properties, with examples of each type of hierarchically structured porous material according to its chemical composition and physical characteristics. The present review aims to open up a new avenue to guide the readers to quickly obtain in-depth knowledge of applications of hierarchically porous materials and to have a good idea about selecting and designing suitable hierarchically porous materials for a specific application. In addition to focusing on the applications of hierarchically porous materials, this comprehensive review could stimulate researchers to synthesize new advanced hierarchically porous solids.

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Cover Feature: Ultrasensitive, Sustainable, and Selective Electrochemical Hydrazine Detection by ALD-Developed Two-Dimensional WO3(ChemElectroChem 2/2018)

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ChemElectroChem 2017年第2期5卷

作者： Zihan Wei Zhenyin Hai Mohammad Karbalaei Akbari Prof. Jie Hu Lachlan Hyde Prof. Stephen Depuydt Prof. Francis Verpoort Prof. Serge Zhuiykov Ghent University Global Campus Department of Applied Analytical & Physical Chemistry 119 Songdomunhwa-ro Yeonsu-gu Incheon South Korea Micro and Nano System Research Center Key Lab of Advanced Transducers and Intelligent Control System (Ministry of Education) & College of Information Engineering Taiyuan University of Technology Taiyuan 030024 Shanxi PR China Factory of the Future Swinburne University of Technology Hawthorn Australia National Research Tomsk Polytechnic University Lenin Avenue 30 634050 Tomsk Russian Federation Laboratory of Organometallics Catalysis and Ordered Materials State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Center for Chemical and Material Engineering Wuhan University of Technology Wuhan P.R. China

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Fine-structured TiO2 ceramic patterns on the ceramic surface fabricated by replication

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IOP Conference Series: materials Science and Engineering 2011年第1期20卷

作者： H D Kim T Nakayama B J Hong K Imaki T Yoshimura T Suzuki H Suematsu S W Lee Z Fu K Niihara Extreme Energy-Density Research Institute Nagaoka University of Technology 1603-1 Kamitomioka Nagaoka 940-2188 Japan Department of Physics and Electronics Graduate School of Engineering Osaka Prefecture University 1-1 Gakuencho Nakaku Sakai 599-8531 Japan Department of Environmental Engineering Sun Moon University Chungnam 336-708 Korea State Key Lab of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan 430070 China

The ability to fabricate high precision micro- to nanoscale structure in a wide variety of materials is of crucial importance for the advancement of microtechnology, nanotechnology and nanoscience. Also, the ability to create micrometer and sub-micrometer architecture for functional ceramics is a prerequisite of exploring the rich field of ceramic nanotechnology. In this work we fabricated three-dimensional oxide ceramic materials with fine-structure over multiple length scales by combining replication patterning technique, polyvinyl alcohol (PVA), oxide ceramic material (TiO2) nano-sized particles. Our study is based on the idea that PVA can be easily detached from a mold by peeling. We confirmed that micron and sub-micron-sized fine-structured oxide ceramic patterns containing nano-sized pores could be fabricated using this procedure. The results presented demonstrate the compositional and structural diversities that are possible with a facile approach and simple method.

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Naphthyl Substituted Impurities Induce Efficient Room Temperature Phosphorescence

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Angewandte Chemie 2023年第50期135卷

作者： Weiguo Qiao Ming Yao Jingwen Xu Haiyan Peng Jianlong Xia Xiaolin Xie Zhong'an Li Key Laboratory for Material Chemistry of Energy Conversion and Storage Ministry of Education School of Chemistry and Chemical Engineering State Key Laboratory of Materials Processing and Die & Mould Technology Huazhong University of Science and Technology Wuhan 430074 China Contribution: Conceptualization (supporting) Investigation (lead) Methodology (equal) Resources (lead) Writing - original draft (lead) Writing - review & editing (supporting) Contribution: Investigation (supporting) Methodology (supporting) Resources (supporting) Writing - review & editing (supporting) School of Chemistry Chemical Engineering and Life Science State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan 430070 China Contribution: Investigation (supporting) Methodology (supporting) Writing - review & editing (supporting) Contribution: Investigation (supporting) Project administration (supporting) Supervision (supporting) Writing - review & editing (supporting) Contribution: Investigation (supporting) Project administration (supporting) Writing - review & editing (supporting) Contribution: Project administration (supporting) Resources (supporting) Writing - review & editing (supporting)

Accidentally, it was found that triphenylamine (TPA) from commercial sources shows ultralong yellow-green room temperature phosphorescence (RTP) like commercial carbazole, which however disappears for lab-synthesized TPA with high purity. Herein, we for the first time identify the impurity types that cause RTP of commercial TPA, which are two N , N -diphenyl-naphthylamine isomers. Due to similar molecular polarity and very trace amount (≈0.8 ‰, molar ratio), these naphthyl substituted impurities can be easily overlooked. We further show that even at an extremely low amount (1000000 : 1, mass ratio) of impurities, RTP emission is still generated, attributed to the triplet-to-triplet energy transfer mechanism. Notably, this doping strategy is also applicable to the triphenylphosphine and benzophenone host systems, of which strong RTP emission can be activated by simply doping the corresponding naphthyl substituted analogues into them. This work therefore provides a general and efficient host/guest strategy toward high performance and diverse organic RTP materials.

关键词： Host-Guest System Impurities Room Temperature Phosphorescence Triphenylamine Triplet-to-Triplet Energy Transfer

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Evolution of Stabilized 1T-MoS2by Atomic-Interface Engineering of 2H-MoS2/Fe−Nxtowards Enhanced Sodium Ion Storage

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Angewandte Chemie 2023年第14期135卷

作者： Huicong Xia Lingxing Zan Pengfei Yuan Gan Qu Hongliang Dong Yifan Wei Yue Yu Zeyu Wei Wenfu Yan Jin-Song Hu Dehui Deng Jia-Nan Zhang College of Materials Science and Engineering Zhengzhou University Zhengzhou 450001 P. R. China State Key Laboratory of Catalysis iChEM Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian 116023 P. R. China Key Laboratory of Chemical Reaction Engineering of Shaanxi Province College of Chemistry & Chemical Engineering Yan'an University Yan'an 716000 P. R. China College of Physics and Engineering Zhengzhou University Zhengzhou 450001 P. R. China Center for High Pressure Science and Technology Advanced Research Pudong Shanghai 201203 P. R. China State Key Lab of Inorganic Synthesis & Preparative Chemistry Jilin University Changchun 130012 P. R. China Chinese Academy of Sciences Key Laboratory of Molecular Nanostructure and Nanotechnology Institute of Chemistry Chinese Academy of Science Beijing 100190 P. R. China Key Laboratory of Advanced Energy Catalytic and Functional Material Preparation of Zhengzhou City Zhengzhou 450012 P. R. China

Metallic conductive 1T phase molybdenum sulfide (MoS 2 ) has been identified as promising anode for sodium ion (Na + ) batteries, but its metastable feature makes it difficult to obtain and its restacking during the charge/discharge processing result in part capacity reversibility. Herein, a synergetic effect of atomic-interface engineering is employed for constructing 2H-MoS 2 layers assembled on single atomically dispersed Fe−N−C (SA Fe−N−C) anode material that boosts its reversible capacity. The work-function-driven-electron transfer occurs from SA Fe−N−C to 2H-MoS 2 via the Fe−S bonds, which enhances the adsorption of Na + by 2H-MoS 2 , and lays the foundation for the sodiation process. A phase transfer from 2H to 1T/2H MoS 2 with the ferromagnetic spin-polarization of SA Fe−N−C occurs during the sodiation/desodiation process, which significantly enhances the Na + storage kinetics, and thus the 1T/2H MoS 2 /SA Fe−N−C display a high electronic conductivity and a fast Na + diffusion rate.

关键词： Atomic Interface Engineering Evolution Fe−N−C Phase Transform of MoS2 Sodium Ion Storage

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