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arXiv 2018年

作者： Wang, Qisheng Li, Jie Besbas, Jean Hsu, Chuang-Han Cai, Kaiming Yang, Li Cheng, Shuai Wu, Yang Zhang, Wenfeng Wang, Kaiyou Chang, Tay-Rong Lin, Hsin Chang, Haixin Yang, Hyunsoo Department of Electrical and Computer Engineering NUSNNI National University of Singapore Singapore117576 Singapore Center for Joining and Electronic Packaging State Key Laboratory of Material Processing and Die And Mould Technology School of Materials Science and Engineering Huazhong University of Science and Technology Wuhan430074 China Centre for Advanced 2D Materials National University of Singapore 6 Science Drive 2 117546 Singapore SKLSM Institute of Semiconductors Chinese Academy of Sciences P. O. Box 912 Beijing100083 China Department of Physics National Tsing Hua University Hsinchu30013 Taiwan

The Weyl semimetal WTe2and MoTe2show great potential in generating large spin currents since they possess topologically-protected spin-polarized states and can carry a very large current density. In addition, the intrinsic noncentrosymmetry of WTe2and MoTe2endows with a unique property of crystal symmetry-controlled spin-orbit torques. An important question to be answered for developing spintronic devices is how spins relax in WTe2and MoTe2. Here, we report a room-temperature spin relaxation time of 1.2 ns (0.4 ns) in WTe2(MoTe2) thin film using the time-resolved Kerr rotation (TRKR). Based on ab initio calculation, we identify a mechanism of long-lived spin polarization resulting from a large spin splitting around the bottom of the conduction band, low electron-hole recombination rate and suppression of backscattering required by timereversal and lattice symmetry operation. In addition, we find the spin polarization is firmly pinned along the strong internal out-of-plane magnetic field induced by large spin splitting. Our work provides an insight into the physical origin of long-lived spin polarization in Weyl semimetals which could be useful to manipulate spins for a long time at room temperature. Copyright © 2018, The Authors. All rights reserved.

关键词： Spin polarization

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P‐Dopant: LiTFSI‐Free Spiro‐OMeTAD‐Based Perovskite Solar Cells with Power Conversion Efficiencies Exceeding 19% (Adv. Energy Mater. 32/2019)

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advanced Energy materials 2019年第32期9卷

作者： Boer Tan Sonia R. Raga Anthony S. R. Chesman Sebastian O. Fürer Fei Zheng David P. McMeekin Liangcong Jiang Wenxin Mao Xiongfeng Lin Xiaoming Wen Jianfeng Lu Yi‐Bing Cheng Udo Bach Department of Chemical Engineering Monash University Clayton Victoria 3800 Australia ARC Center of Excellence in Exciton Science Monash University Clayton Victoria 3800 Australia CSIRO Manufacturing Clayton Victoria 3168 Australia Melbourne Centre for Nanofabrication Australian National Fabrication Facility Clayton Victoria 3168 Australia Centre for Micro‐Photonics Swinburne University of Technology Hawthorn Victoria 3122 Australia Department of Materials Science and Engineering Monash University Clayton Victoria 3800 Australia State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan 430070 P. R. China

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Integrating triple intracellular metabolic pathways in living yeast cells for dual-functionalized cell beacons

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Nanomedicine: Nanotechnology, Biology and Medicine 2018年第5期14卷 1874-1874页

作者： Ran Cui Ming-Xi Zhang Zhi-Ling Zhang Dai-Wen Pang Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education) College of Chemistry and Molecular Sciences Research Center for Nanobiology and Nanomedicine (MOE 985 Innovative Platform) State Key Laboratory of Virology and Wuhan Institute of Biotechnology Wuhan University Wuhan 430072 PR China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan P. R. China

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A novel bioactive nerve conduit for the repair of peripheral nerve injury

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Neural Regeneration Research 2016年第1期11卷 150-155页

作者： Bin-bin Li Yi-xia Yin Qiong-jiao Yan Xin-yu Wang Shi-pu Li State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Biomedical Materials and Engineering Research Center of Hubei Province Wuhan University of Technology

The use of a nerve conduit provides an opportunity to regulate cytokines,growth factors and neurotrophins in peripheral nerve regeneration and avoid autograft *** constructed a poly-D-L-lactide(PDLLA)-based nerve conduit that was modified using poly{(lactic acid)-co-[(glycolic acid)-alt-(L-lysine)]}andβ-tricalcium *** effectiveness of this bioactive PDLLA-based nerve conduit was compared to that of PDLLA-only conduit in the nerve regeneration following a 10-mm sciatic nerve injury in *** observed the nerve morphology in the early period of regeneration,35 days post injury,using hematoxylin-eosin and methylene blue *** with the PDLLA conduit,the nerve fibers in the PDLLA-based bioactive nerve conduit were thicker and more regular in *** fibers in the soleus muscle had greater diameters in the PDLLA bioactive group than in the PDLLA only *** PDLLA-based bioactive nerve conduit is a promising strategy for repair after sciatic nerve injury.

关键词： nerve regeneration polylactic acid poly{(lactic acid)-co-[(glycolic acid)-alt-(L-lysine)]} β-tricalcium phosphate nerve conduit nerve fiber neural regeneration

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[email protected] : Catalytic applications and size selective catalysis

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Coordination Chemistry Reviews 2017年 353卷 201-222页

作者： Adriano Zanon Francis Verpoort Laboratory of Organometallics Catalysis and Ordered Materials State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan 430070 China School of Materials Science and Engineering Wuhan University of Technology Wuhan 430070 China National Research Tomsk Polytechnic University Lenin Avenue 30 Tomsk Russian Federation Ghent University Global Campus Songdo 119 Songdomunhwa-Ro Yeonsu-Gu Incheon South Korea

Interest towards metal organic frameworks has experienced an exceedingly fascinating growth in the past decade due to the unique features that these materials exhibit, such as tunable structure and pore size, which made them attractive for many different fields of chemistry. Great potential has been shown during the years for the applications of metal nanoparticles in different fields, especially in catalysis. The deeper understanding of the physicochemical properties of ZIFs along with the possibility of fine tuning the crystalline network provided the researchers with an attracting new support material that can furnish a beneficial environment for the encapsulation of metal nanoparticles. Especially, the pore system resembling those of the zeolites provides a confinement for the growth of the metal species, in which the distribution of pore size is usually in the micropore range and is extremely important for catalytic applications. The synthetic modifications that can be carried out prior- or post-synthetically on the ZIF support offer a wide range of different functionalities that can be introduced into the structure to be finally exploited. These moieties are generally very important in the stabilization of the metal nanoparticles of which control of the dimensions is critical to obtain high catalytically active materials. Hitherto, this review is highlighting the role of ZIFs in different catalytic reactions, especially as support of metal nanoparticles, overlooking the MOFs which have been already extensively discussed.

关键词： [email protected] NPs ZIFs Catalysis Selectivity

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Smart Robots: Self‐Propelled 3D‐Printed “Aircraft Carrier” of Light‐Powered Smart Micromachines for Large‐Volume Nitroaromatic Explosives Removal (Adv. Funct. Mater. 39/2019)

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advanced Functional materials 2019年第39期29卷

作者： Lei Kong Adriano Ambrosi Muhammad Zafir Mohamad Nasir Jianguo Guan Martin Pumera Division of Chemistry and Biological Chemistry School of Physical and Mathematical Sciences Nanyang Technological University Singapore 637371 Singapore State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology 122 Luoshi road Wuhan 430070 P. R. China Department of Inorganic Chemistry University of Chemistry and Technology Prague Technická 5 166 28 Prague 6 Czech Republic Future Energy and Innovation Lab Central European Institute of Technology Brno University of Technology Purkyňova 656/123 Brno CZ‐616 00 Czech Republic Department of Chemical and Biomolecular Engineering Yonsei University 50 Yonsei‐ro Seodaemun‐gu Seoul 03722 Korea

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Ammonium [email protected] @manganese dioxide nanowire arrays with enhanced reversible lithium storage

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Applied Surface Science 2017年 416卷 402-410页

作者： Chang Wang Hui Liu Ming Jiang Yingde Wang Ruina Liu Zhiping Luo Xiaoqing Liu Weilin Xu Chuanxi Xiong Dong Fang College of Material Science and Engineering State Key Lab for New Textile Materials & Advanced Processing Technology Key Laboratory for New Textile Materials and Applications of Hubei Province Wuhan Textile University Wuhan 430070 PR China School of Metallurgy and Environment Central South University Changsha 410083 PR China Science and Technology on Advanced Ceramic Fiber and Composites Laboratory National University of Defense Technology Changsha 410073 PR China Department of Chemistry and Physics Fayetteville State University Fayetteville NC 28301 USA School of Materials Science and Engineering Wuhan University of Technology Wuhan 430070 PR China

Design and fabrication of novel optimized electrode materials are important for the development of new batteries for energy storage applications. Herein, we report on a hierarchical bulk electrode material with a tailored nanostructure that which consists of three components: a NH 4 V 4 O 10 nanowire as an active skeleton, an intermediate polymer layer (polypyrrole, PPy), and a metal oxide layer (MnO 2 ) as the outside shell. The NH 4 V 4 O 10 -PPy-MnO 2 nanowires exhibit present higher capacitance than that of the simple NH 4 V 4 O 10 -PPy [email protected] or NH 4 V 4 O 10 nanowires. The structure of double shells of combined PPy and MnO 2 is a key factor in enhancing their electrochemical performance including high specific capacitance and excellent cycling stability. Our V-based [email protected] @shell structure can serve as freestanding, compressible electrodes for various energy devices.

关键词： Ammonium vanadate Nanowire array [email protected] @shell structure Lithium ion battery

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High Phase‐Purity 1T‐MoS2Ultrathin Nanosheets by a Spatially Confined Template

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Angewandte Chemie 2019年第49期131卷

作者： Xiaoyu Chen Zumin Wang Yanze Wei Xing Zhang Qinghua Zhang Lin Gu Lijuan Zhang Nailiang Yang Ranbo Yu Department of Physical Chemistry School of Metallurgical and Ecological Engineering University of Science and Technology Beijing No. 30 Xueyuan Road Haidian District Beijing 100083 China State Key Laboratory of Biochemical Engineering Institute of Process Engineering Chinese Academy of Sciences 1 North 2nd Street Zhongguancun Beijing 100190 China Beijing National Laboratory for Condensed Matter Physics Institute of Physics Chinese Academy of Sciences Beijing 100190 China University of Chinese Academy of Sciences 19A Yuquan Road Beijing 10049 P. R. China Key Laboratory of Advanced Material Processing & Mold (Ministry of Education) Zhengzhou University Zhengzhou 450002 P. R. China

The crystal phase plays an important role in controlling the properties of a nanomaterial; however, it is a great challenge to obtain a nanomaterial with high purity of the metastable phase. For instance, the large‐scale synthesis of the metallic phase MoS 2 (1T‐MoS 2 ) is important for enhancing electrocatalytic reaction, but it can only be obtained under harsh conditions. Herein, a spatially confined template method is proposed to synthesize high phase‐purity MoS 2 with a 1T content of 83 %. Moreover, both the confined space and the structure of template will affect the purity of 1T‐MoS 2 ; in this case, this approach was extended to other similar spatially confined templates to obtain the high‐purity material. The obtained ultrathin nanosheets exhibit good electrocatalytic activity and excellent stability in the hydrogen evolution reaction.

关键词： Interkalation Metastabile Phasen Molybdendisulfid Nanoschichten Wasserstoffentwicklungsreaktion

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Multiferroism and Colossal Magneto-Capacitance of La Modified M-type Lead Hexaferrite

Multiferroism and Colossal Magneto-Capacitance of La Modifie...

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2016中国国际功能材料大会(CIFM 2016)暨第九届中国功能材料及其应用学术会议(9th NCFMA)

作者： Guo-Long Tan Haohao Sheng Wei Li Yao Huang State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology

Multiferroic materials with such magnetoelectric properties that are comparable to the useful ferroelectrics and ferromagnets are exceedingly *** report here on integration of ferroelectricity and ferromagnetism in a M-hexaferrite(La0.2Pb0.7Fe12O19),which simultaneously exhibits colossal magnetocapacitance *** polarization and magnetic properties in La modified M-type lead

关键词： Multiferroism and Colossal Magneto-Capacitance of La Modified M-type Lead Hexaferrite

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Simplified synthesis and Luminous Mechanism of Eu2+-Doped Α-Si3N4 Nanowires with Strong Green Luminescent Properties

Simplified Synthesis and Luminous Mechanism of Eu2+-Doped Α...

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2016中国国际功能材料大会(CIFM 2016)暨第九届中国功能材料及其应用学术会议(9th NCFMA)

作者： Rui Su Zhifeng Huang Fei Chen Qiang Shen Lianmeng Zhang State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology

Ultra-long,single crystal,Eu-dopedα-SiN nanowires were prepared by a simple approach involving nitriding Eu-doped cryomilled nanocrystalline Si powder in NH flow at 1350 oC for 4 ***,chemical composition and microcosmic feature were tested by X-ray diffraction（XRD）,field emission scanning electron microscopy（FESEM）,transmission electron microscopy（TEM/HRTEM）,*** results

关键词： Doped Si3N4 Nanowires with Strong Green Luminescent Properties Simplified synthesis and Luminous Mechanism of Eu

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