检索结果-内蒙古大学图书馆

SSRN 2023年

作者： Alahmadi, M. El-Dek, Engy Moselhy, Mostafa A. AbdelMonem, M. Neair, Shereen H. Refai, H.S. El-Desoky, Mohamed M. Yang, Xiao-Yu Sheha, Eslam Chemistry Department College of Science Taibah University P.O. Box 344 Madinah Saudi Arabia Chemistry Department Faculty of Science Benha University Benha13518 Egypt Physics Department Faculty of Science Benha University Benha13518 Egypt Reactor Physics Department Nuclear Research Center Egyptian Atomic Energy Authority Cairo13759 Egypt Physics Department Faculty of Science Suez University Suez43518 Egypt State Key Laboratory of Advanced Technology for Materials Synthesis and Processing State Key Laboratory of Silicate Materials for Architectures Shenzhen Research Institute School of Materials Science and Engineering Wuhan University of Technology Wuhan430070 China

Magnesium batteries are promising post-lithium storms for their low cost and high energy density. Engineering novel cathodic materials compensates the charge imbalance due to the introduction of the bivalent magnesium cation in the framework of the cathode is one of the key solutions for realizing practical Mg battery. Herein, crystal engineering of WS2 using Al doping strategy are conducted to regulate magnesium storage and electrochemical reaction kinetics of WS2 cathodes. tungsten disulfide (WS2) and Al-doped WS2 (WS2@Alx, x=0, 2 and 4 wt.%) are prepared by a one-step hydrothermal technique and used as a cathode material for magnesium batteries. We explore the Mg2+ insertion/extraction process on the WS2@Alx in the presence of halogen free electrolyte (HFE) based on 0.69 M Mg(NO3)2·6H2O dissolved in acetonitrile (ACN):tetra ethylene glycol dimethyl ether (G4) (∼2: 1). The Mg/WS2 full battery containing Al delivered high initial discharge capacity compared with the Al free cell. The introduction of anode/electrolyte polymer interface inhibits the passivation of Mg anode, via insulation between the liquid electrolyte and Mg anode. This study provides an effective method to design a practical Mg cathode and a new understanding of crystal engineering of WS2 by Al doping which may help in constructing high performance cathode for Mg batteries applications. © 2023, The Authors. All rights reserved.

关键词： Cathodes

来源：评论

学校读者我要写书评

暂无评论

Preface to Special Issue in Honor of the 80th Birthday of Professor Mingyuan He

引用

Chinese Journal of Catalysis 2020年第7期41卷 1029-1031页

作者： Zai-Ku Xie Bao-Lian Su Haichao Liu China Petroleum&Chemical Corporation Beijing 100728China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070HubeiChina College of Chemistry and Molecular Engineering Peking UniversityBeijing 100871China

This special issue of Chinese Journal of Catalysis is dedicated to Professor Mingyuan He on the occasion of his 80th birthday,in recognition of his distinguished contributions to many aspects in the field of catalytic science and *** He was born on February 8,1940 in Shanghai,*** 1961,he graduated from East China Textile Engineering Institute(now Donghua University),and earned his *** in applied *** then joined the Research Institute of Petroleum processing,*** 1982?1984,he worked as a visiting scholar at the Northwestern University and the University of Texas at *** 2000,he became an adjunct professor at East China Normal University,and established the Shanghai key laboratory of Green Chemistry and Chemical Processes in 2003.

关键词：中国科学院院士科学技术进步奖中国科学院学部香山科学会议终身成就奖高水平学术炼油催化剂中国化学会

来源：评论

学校读者我要写书评

暂无评论

Addendum: Solution epitaxy of polarization-gradient ferroelectric oxide films with colossal photovoltaic current

引用

Nature communications 2024年第1期15卷 3878-3878页

作者： Lin, Chen Zhang, Zijun Dai, Zhenbang Wu, Mengjiao Liu, Shi Chen, Jialu Hua, Chenqiang Lu, Yunhao Zhang, Fei Lou, Hongbo Dong, Hongliang Zeng, Qiaoshi Ma, Jing Pi, Xiaodong Zhou, Dikui Wu, Yongjun Tian, He Rappe, Andrew M. Ren, Zhaohui Han, Gaorong State Key Laboratory of Silicon and Advanced Semiconductor Materials School of Materials Science and Engineering Zhejiang University Hangzhou 310027 China Center of Electron Microscope School of Materials Science and Engineering Zhejiang University Hangzhou 310027 China Department of Chemistry University of Pennsylvania Philadelphia PA United States Oden Institute for Computational Engineering and Sciences University of Texas at Austin Austin 78712 TX United States Key Laboratory for Quantum Materials of Zhejiang Province Department of Physics School of Science Westlake University Hangzhou 310024 China Zhejiang Province Key Laboratory of Quantum Technology and Device Department of physics Zhejiang University Hangzhou 310027 China Center for High Pressure Science and Technology Advanced Research 201203 Shanghai China State Key Lab of New Ceramics and Fine Processing School of Materials Science and Engineering Tsinghua University 100091 Beijing China Institute of Advanced Semiconductors & Zhejiang Provincial Key Laboratory of Power Semiconductor Materials and Devices ZJU-Hangzhou Global Scientific and Technological Innovation Center Zhejiang University Hangzhou 311215 China Research Center for Intelligent Sensing Zhejiang Lab Hangzhou 311100 China State Key Laboratory of Silicon and Advanced Semiconductor Materials School of Materials Science and Engineering Zhejiang University Hangzhou 310027 China

来源：评论

学校读者我要写书评

暂无评论

Electroresistance mechanism of memristive Cu 2 S thin films

引用

Fundamental Research 2025年

作者： Meiyan Wang Ruifeng Dong Zukang Zhu Zhengzhou Wang Lanhao Qin Yuan Li Jinsong Wu State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan 430070 China Nanostructure Research Center Wuhan University of Technology Wuhan 430070 China School of Information Engineering Wuhan University of Technology Wuhan 430070 China

Cu 2 S has been widely used as the resistive-layer material of memristors with the advantage of low-power consumption since the Cu-ions have high mobility and migrate quickly under the applied electric field or current. However, the resistance switching mechanisms remain unclear as direct experimental evidence is still lacking. Here, we prepare several prototypes of metal-Cu 2 S-metal memristors, where the resistive layer is a thin film of polycrystalline Cu 2 S fabricated by a simple magnetron sputtering process. By fitting the resistive curves, space charge limited conduction (SCLC) and electrochemical metallization (ECM) are identified in devices using different electrodes and compliance currents. The microstructural evolutions of the devices in their working conditions are then studied by in-situ transmission electron microscopy (TEM) to directly observe the formation and rupture of the electrically conductive pathways. We find the resistance switch at small current compliance is caused by the phase transformation between γ (L)-Cu 2 S phase and the Cu-deficiency γ (D)-Cu 2-x S phase (corresponding to SCLC mechanism). Meanwhile, the origin of resistance change at a large current compliance is the formation of metal Cu filaments (corresponding to ECM mechanism). The study reveals the underlying resistive mechanisms of Cu 2 S, providing insights for its potential applications as the resistive material in high-performance memristors.

关键词： Cu 2 S memristor mechanism SCLC ECM

来源：评论

学校读者我要写书评

暂无评论

Dissolution and recrystallization of perovskite induced by N-methyl-2-pyrrolidone in a closed steam annealing method

引用

Journal of Energy Chemistry 2019年第3期28卷 78-83页

作者： Lili Zhi Yanqing Li Xiaobing Cao Yahui Li Xian Cui Lijie Ci Jinquan Wei SDU & Rice Joint Center for Carbon Nanomaterials Key Laboratory for Liquid-Solid Structural Evolution & Processing of Materials (Ministry of Education)School of Materials Science and Engineering Shandong University Department of Physics Changji College State Key Laboratory of Crystal Materials Shandong University State Key Lab of New Ceramic and Fine Processing Education Ministry Key Laboratory for Advanced Materials Processing Technology School of Materials Science and Engineering Tsinghua University

High quality perovskite films with large columnar grains are greatly desired for efficient perovskite solar cells. Here, low volatility N-methyl-2-pyrrolidone(NMP) was added in MAI/IPA solution in a two-step spin-coating method, which promoted the conversion of lead iodide to perovskite. The perovskite films were annealed by a closed-steam annealing method to prolong the recrystallization process of perovskite films assisted by the residual NMP. It leaded to high quality CH_3NH_3PbI_3 perovskite films with large columnar grains due to its enhancement of the Oswald ripening. The large grain perovskite film leaded to efficient carrier transformation and injection, and low recombination. The photovoltaic performance of the perovskite solar cells was improved significantly.

关键词： Perovskite solar cell N-Methyl-2-pyrrolidone (NMP) Dissolution and recrystallization Closed-steam annealing Oswald ripening

来源：评论

学校读者我要写书评

暂无评论

In Situ Crosslinked Side Chain Polybenzimidazole Based Anion Exchange Membranes for High Performance Alkaline Direct Methanol Fuel Cells

SSRN

引用

SSRN 2022年

作者： Liu, Guoliang Wang, Ailian Ji, Wenxi Zhang, Fangfang Wu, Jianing Zhang, Taoyi Tang, Haolin Zhang, Haining State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Nr. 122 Luoshi Rd. Wuhan430070 China Foshan Xianhu Laboratory of the Advanced Energy Science and Technology Guangdong Laboratory Foshan528200 China Research Institute of Chemical Industry Co. Ltd Beijing100013 China School of Nuclear Technology and Chemistry & Biology Hubei University of Science and Technology Nr. 88 Xianning Avenue Xianning437100 China

The practical application of quaternized polybenzimidazole (PBI) as anion exchange membranes (AEMs) is limited by the crosslinking side reaction induced low hydroxide conductivity during the operation process. In this work, the in situ crosslinking side reaction is ingeniously controlled during the membrane preparationto achieve the balance between mechanical properties and ionic conductivity of quaternized PBI based AEMs with high ion exchange capacity. The results reveal that the in situ crosslinking can not only greatly improve the mechanical properties of quaternized PBI membranes, but the high quaternization degree of ammonium hydroxide end-functionalized alkyl chain also guarantees the reasonable hydroxide conduction. The formed quaternized PBI based membrane with quaternization degree of 190% exhibits the tensile strength of 21.0 MPa under hydrated state with ion exchange capacity of 2.65 mmol g -1 and hydroxide conductivity of 82.4 mS cm -1 at 80 o C. In addition, the membrane maintains 79.7% of its initial conductivity after treating with 1 M KOH at 80 o C for 360 h. The thus-assembled alkaline direct methanol fuel cell delivers a maximum power density of 152.6 mW cm -2 using 5 M KOH and 3 M methanol fuels at 80 o C. After chronopotentiometry test at 450 mA cm -2 for 150 h, the observed 8.7% of voltage loss indicates its potential application in fuel cells. © 2022, The Authors. All rights reserved.

关键词： Ion exchange membranes

来源：评论

学校读者我要写书评

暂无评论

Efficient and stable planar all-inorganic perovskite solar cells based on high-quality CsPbBr3 films with controllable morphology

引用

Journal of Energy Chemistry 2020年第7期29卷 8-15,I0001页

作者： Xiaojing Wan Ze Yu Wenming Tian Fuzhi Huang Shengye Jin Xichuan Yang Yi-Bing Cheng Anders Hagfeldt Licheng Sun State Key Laboratory of Fine Chemicals Institute of Artificial PhotosynthesisDUT-KTH Joint Education and Research Center on Molecular DevicesInstitute of Energy Science and TechnologyDalian University of Technology(DUT)Dalian 116024LiaoningChina State Key Laboratory of Molecular Reaction Dynamics and the Dynamic Research Center for Energy and Environmental Materials Dalian Institute of Chemical PhysicsChinese Academy of SciencesDalian 116023LiaoningChina State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyLuoshi RoadWuhan 430070HubeiChina The Australian Centre for Advanced Photovoltaics(ACAP) Monash UniversityVictoria 3800Australia Laboratory of Photomolecular Science Ecole Polytechnique Federale de LausanneLausanne CH-1015Switzerland Department of Chemistry School of Engineering Sciences in ChemistryBiotechnology and HealthKTH Royal Institute of TechnologyStockholm 10044

All-inorganic cesium lead bromide(CsPbBr3)perovskite is attracting growing interest as functional materials in photovoltaics and other optoelectronic devices due to its superb ***,the fabrication of high-quality CsPbBr3 films still remains a big challenge by solution-process because of the low solubility of the cesium precursor in common ***,we report a facile solution-processed approach to prepare high-quality CsPbBr3 perovskite films via a two-step spin-coating method,in which the Cs Br methanol/H2 O mixed solvent solution is spin-coated onto the lead bromide films,followed by an isopropanol-assisted post-treatment to regulate the crystallization process and to control the film *** this fashion,dense and uniform CsPbBr3 films are obtained consisting of large crystalline domains with sizes up to microns and low defect *** effectiveness of the resulting CsPbBr3 films is further examined in perovskite solar cells(PSCs)with a simplified planar architecture of fluorine–doped tin oxide/compact Ti O2/CsPbBr3/carbon,which deliver a maximum power conversion efficiency of 8.11%together with excellent thermal and humidity *** present work offers a simple and effective strategy in fabrication of high-quality CsPbBr3 films for efficient and stable PSCs as well as other optoelectronic devices.

关键词： All-inorganic perovskite solar cells CsPbBr3 Morphology control Solution-processed Stability

来源：评论

学校读者我要写书评

暂无评论

Ionic Liquid Modified Inorganic Nanoparticles for Gaseous Phenol Adsorption

引用

Journal of Wuhan University of technology(materials Science) 2019年第4期34卷 787-790页

作者： SONG Xuyan LI Ran Technology Centre of Hubei China Tobacco Industry Co. Ltd.Wuhan 430051China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070China

Ionic liquid modified silica nanoparticles were synthesized using a simple silane chemistry,followed by substitution reaction. The phenol adsorption performance was tested using temperature programmed desorption technique. The experimental results reveal that the introduction of ionic liquids on the surface of silica nanoparticles can improve the adsorption capacity of phenol compared to the pure silica *** initial adsorption capacity reaches 0.312 mmol·g^-1 at 25 ℃ under total pressure of 0.2 bar and it decreases slightly in the following adsorption-desorption cycles. The results demonstrate that introduction of ionic liquids can improve the phenol adsorption capacity and the simple material preparation process is feasible for industrial applications.

关键词： ionic liquid phenol adsorption grafting self-assembly

来源：评论

学校读者我要写书评

暂无评论

Realization of non-equilibrium process for high thermoelectric performance Sb-doped Ge Te

引用

Science Bulletin 2018年第11期63卷 717-725页

作者： Evariste Nshimyimana Xianli Su Hongyao Xie Wei Liu Rigui Deng Tingting Luo Yonggao Yan Xinfeng Tang State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology

Pristine GeTe shows inferior thermoelectric performance around unit due to the large carrier concentration induced by the presence of intrinsic high concentration of Ge vacancy. In this study, we report a thermoelectric figure of merit ZT of 1.56 at 700 K, realized in Sb-doped GeTe based thermoelectric(TE)materials via combined effect of suppression of intrinsic Ge vacancy and Sb doping. The nonequilibrium nature during melt spinning process plays very important role. For one thing, it promotes the homogeneity in Ge_(1-x)Sb_xTe samples and refines the grain size of the product. Moreover the persistent Ge precipitated as impurity phase in the traditional synthesis process is found to be dissolved back into the GeTe sublattice, accompanying with a drastic suppression of Ge vacancies concentration which in combination with Sb electron doping significantly reduced the inherent carrier concentration in *** carrier concentration, approaching the optimum carrier concentration ～3.74 × 10^(-20) cm^(-3) and a high power factor of 4.01 × 10^(-3) W m^(-1)K^(-2) at 750 K are achieved for Ge_(0.98)Sb_(0.02) Te sample. In addition,the enhanced grain boundary phonon scattering by refining the grain size through melt spinning(MS)process, coupled with the intensified alloying phonon scattering via Sb doping leads to low thermal conductivity of 1.53 W m^(-1) K^(-1) at 700 K for Ge_(0.94) Sb_(0.06) Te sample. All those contribute to a high ZT value,representing over 50% improvement in the ZT value compared to the Sb free samples, which provides an alternative way for ultrafast synthesis of high performance GeTe based thermoelectric material.

关键词： GeTe Sb doping MS-SPS process Thermoelectric properties

来源：评论

学校读者我要写书评

暂无评论

Cross-Link-Functionalized Nanoparticles for Rapid Excretion in Nanotheranostic Applications

引用

Angewandte Chemie 2020年第46期132卷 20733-20741页

作者： Ma Z. Wang F. Zhong Y. Salazar F. Li J. Zhang M. Ren F. Wu A.M. Dai H. Department of Chemistry and Bio-X Stanford University Stanford CA 94305 United States Department of Molecular Imaging and Therapy Beckman Research Institute of the City of Hope Duarte CA United States State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan China

Most NIR-IIb fluorophores are nanoparticle-based probes with long retention (≈1 month or longer) in the body. Here, we applied a novel cross-linked coating to functionalize core/shell lead sulfide/cadmium sulfide quantum dots (PbS/CdS QDs) emitting at ≈1600 nm. The coating was comprised of an amphiphilic polymer followed by three crosslinked amphiphilic polymeric layers (P3 coating), imparting high biocompatibility and >90 % excretion of QDs within 2 weeks of intravenous administration. The P3-QDs were conjugated to an engineered anti-CD8 diabody (Cys-diabody) for in vivo molecular imaging of CD8+ cytotoxic T lymphocytes (CTLs) in response to anti-PD-L1 therapy. Two-plex molecular imaging in combination with down-conversion Er nanoparticles (ErNPs) was performed for real-time in vivo monitoring of PD-L1 positive tumor cells and CTLs with cellular resolution by non-invasive NIR-IIb light sheet microscopy. Imaging of angiogenesis in the tumor microenvironment and of lymph nodes deep in the body with a signal-to-background ratio of up to ≈170 was also achieved using P3-QDs. © 2020 Wiley-VCH GmbH

关键词： excretion imaging agents nanomedicine nanoparticles second near-infrared window

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：