检索结果-内蒙古大学图书馆

SSRN 2025年

作者： Zhao, Wenxuan Chen, Yuzhe Wu, Xiaopei Dong, Xianzheng Dai, Honglian State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan430070 China Wuhan University of Technology Advanced Engineering Technology Research Institute of Zhongshan City Zhongshan528400 China State Key Laboratory of New Textile Materials and Advanced Processing Wuhan Textile University Wuhan430200 China

Peripheral nerve regeneration is impeded by an imbalanced microenvironment involving inflammation, oxidative stress, and inadequate vascularization. Traditional drug therapies are limited by poor blood-nerve barrier penetration and lack of multifunctional efficacy. Nitric oxide (NO), a critical gasotransmitter, promotes nerve repair by enhancing axonal growth, synaptic plasticity, and cell survival, while exerting anti-inflammatory, antioxidant, and pro-angiogenic effects. However, uncontrolled NO release risks cytotoxicity. To address this, we engineered a multifunctional hydrogel by grafting RGDC peptides onto chitosan to create an oriented microstructure, incorporating glutathione as a precursor for S-nitrosoglutathione (GSNO), a sustained NO donor. This design combines structural guidance with controlled NO delivery and antioxidant activity. The hydrogel demonstrated excellent biocompatibility and sustained NO release, avoiding cytotoxic levels. The RGDC peptide enhanced cell adhesion and migration, while GSNO effectively reduced intracellular reactive oxygen species (ROS) and promoted human umbilical vein endothelial cell (HUVEC) angiogenesis. The integrated system synergistically modulates the regenerative microenvironment by mitigating oxidative stress, supporting vascularization, and guiding cellular behavior. This strategy overcomes limitations of conventional treatments by combining structural alignment, controlled gasotransmitter release, and multifunctional bioactivity, offering a promising translational solution for peripheral nerve repair. © 2025, The Authors. All rights reserved.

关键词： Scaffolds

来源：评论

学校读者我要写书评

暂无评论

Stoichiometry design in hierarchical CoNiFe phosphide for highly efficient water oxidation

引用

Science China materials 2022年第10期65卷 2685-2693页

作者： Jiangbo Chen Jie Ying Yuxuan Xiao Yuan Dong Kenneth IOzoemena Silvia Lenaerts Xiaoyu Yang State Key Laboratory of Advanced Technology for Materials Synthesis and Processing School of Materials Science and Engineering&Shenzhen Research Institute&Joint Laboratory for Marine Advanced Materials in Pilot National Laboratory for Marine Science and Technology(Qingdao)Wuhan University of TechnologyWuhan 430070China School of Chemical Engineering and Technology Sun Yat-sen UniversityZhuhai 519082China Molecular Sciences Institute School of ChemistryUniversity of the WitwatersrandPrivate Bag 3Johannesburg 2050South Africa Research Group Sustainable Energy Air and Water TechnologyDepartment of Bioscience EngineeringUniversity of AntwerpAntwerp 2020Belgium School of Engineering and Applied Sciences Harvard UniversityCambridgeMassachusetts 02138USA

Rational composition design of trimetallic phosphide catalysts is of significant importance for enhanced surface reaction and efficient catalytic ***,hierarchical Co_(x)Ni_(y)Fe_(z)P with precise control of stoichiometric metallic elements(x:y:z=(1-10):(1-10):1)has been synthesized,and Co_(1.3)Ni_(0.5)Fe_(0.2)P,as the most optimal composition,exhibits remarkable catalytic activity(η=320 mV at 10 mA cm^(−2))and long-term stability(ignorable decrease after 10 h continuous test at the current density of 10 mA cm^(−2))toward oxygen evolution reaction(OER).It is found that the surface P in Co_(1.3)Ni_(0.5)Fe_(0.2)P was replaced by O under the OER *** density function theory calculations before and after long-term stability tests suggest the clear increasing of the density of states near the Fermi level of Co_(1.3)Ni_(0.5)Fe_(0.2)P/Co_(1.3)Ni_(0.5)Fe_(0.2)O,which could enhance the OH−adsorption of our electrocatalysts and the corresponding OER performance.

关键词： trimetallic phosphides hierarchical structures stoichiometry design charge transfer oxygen evolution reaction

来源：评论

学校读者我要写书评

暂无评论

A facile synthesis of hierarchically porous graphene for high-performance lithium storage

引用

New Journal of Chemistry 2022年第21期46卷 9999-10003页

作者： Chenming Feng Yi Lu Yixuan Liu Xiaoyu Yang Ge Tian State Key Laboratory of Advanced Technology for Materials Synthesis and Processing & Shenzhen Research Institute & Joint Laboratory for Marine Advanced Materials in Pilot National Laboratory for Marine Science and Technology (Qingdao) Wuhan University of Technology Wuhan China Institut für Anorganische Chemie und Strukturchemie Heinrich-Heine-Universität Düsseldorf Universitätsstraße 1 Düsseldorf 40225 Germany

Hierarchically porous graphene with macro-mesopores is highly desired for enhancing lithium storage. However, it is still not easy to construct such materials with hierarchical porosity. Herein, hierarchical porous graphene was successfully fabricated via two-step calcination. The as-prepared sample exhibits an excellent reversible capacity of 545 mA h g⁻¹ at 5 A g⁻¹ after 700 cycles.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Rapid synthesis of Pd single‐atom/cluster as highly active catalysts for Suzuki coupling reactions

引用

Chinese Journal of Catalysis 2022年第4期43卷 1058-1065页

作者： Hehe Wei Xiaoyang Li Bohan Deng Jialiang Lang Ya Huang Xingyu Hua Yida Qiao Binghui Ge Jun Ge Hui Wu State Key Laboratory of New Ceramics and Fine Processing School of Materials Science and EngineeringTsinghua UniversityBeijing 100084China Key Lab for Industrial Biocatalysis Ministry of EducationDepartment of Chemical EngineeringTsinghua UniversityBeijing 100084China Institutes of Physical Science and Information Technology Anhui UniversityHefei 230601AnhuiChina Key Laboratory for Advanced Materials Center for Computational Chemistry and Research Institute of Industrial CatalysisEast China University of Science and TechnologyShanghai 200237China

Palladium(Pd)‐based catalysts are essential to drive high‐performance Suzuki coupling reactions,which are powerful tools for the synthesis of functional organic ***,we developed a solution‐rapid‐annealing process to stabilize nitrogen‐mesoporous carbon supported Pd single‐atom/cluster(Pd/NMC)material,which provided a catalyst with superior performance for Suzuki coupling *** comparison with commercial palladium/carbon(Pd/C)catalysts,the Pd/NMC catalyst exhibited significantly boosted activity(100%selectivity and 95%yield)and excellent stability(almost no decay in activity after 10 reuse cycles)for the Suzuki coupling reactions of chlorobenzenes,together with superior yield and excellent selectivity in the fields of the board scope of the ***,our newly developed rapid annealing process of precursor solutions is applied as a generalized method to stabilize metal clusters(***,Pt,Ru),opening new possibilities in the construction of efficient highly dispersed metal atom and sub‐nanometer cluster catalysts with high performance.

关键词： Pd single‐atom/cluster catalyst Suzuki coupling reactions Solution rapid annealing Energy barrier High yield

来源：评论

学校读者我要写书评

暂无评论

One-pot K+ and PO43− co-doping enhances electrochemical performance of Li-rich Li1.2Ni0.13Co0.13Mn0.54O2 cathode for Li-ion battery

引用

Electrochimica Acta 2023年第1期454卷

作者： Peng, Yan Wu, Liang Li, Chao-Fan Luo, Bi-Cheng Feng, Xiang-Yu Hu, Zhi-Yi Li, Yu Su, Bao-Lian State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology 122 Luoshi Road Hubei Wuhan430070 China School of Automotive Engineering Xiangyang Polytechnic 18 Longzhong Road Hubei Xiangyang441050 China Wuhan University of Technology 122 Luoshi Road Hubei Wuhan430070 China University of Namur 61 Rue de Bruxelles Namur B-5000 Belgium

The high specific capacity and voltage of Li-rich Mn-based oxides make them promising cathode materials for high-energy-density lithium-ion batteries (LIBs). However, the problems such as low initial coulombic efficiency, fast capacity and voltage fading, poor kinetics, large voltage hysteresis, and poor safety performance hamper their fast commercialization. Herein, we report one-pot K+ and PO43− co-doping Li-rich Mn-based oxides Li1.2Ni0.13Co0.13Mn0.54O2 cathode material to improve the electrochemical performance of the lithium-ion battery. On the one hand, K+ doping can stabilize the bulk structure and enlarge the Li slab. to facilitate the diffusion of Li+, resulting in enhanced cycling and rate performance. On the other hand, PO43− doping changes the electronic structure of the material and weakens the covalency of TM-O, decreasing the irreversible loss of lattice oxygen and stabilizing the structure. As a result, the K+ and PO43− co-doping can effectively alleviate the capacity and voltage decay and the modified sample shows better cycling stability (88.6%@0.5 C@250 cycles) and rate performance (155.5 mAh g −1@5 C) compared to the pristine material. Our strategy here provides a facile one-pot method to modify Li-rich Mn-based oxides cathode material for high-performance LIBs. © 2023

关键词： Electronic structure

来源：评论

学校读者我要写书评

暂无评论

Effect of Gradient Multilayer on Tribological Performance of Tin/Tisin Coatings Prepared by Cathodic Arc Ion Plating

SSRN

引用

SSRN 2023年

作者： Tu, Rong Jiao, Jiao Jiang, Mingquan Yang, Mai Ji, Baifeng Gao, Tenghua Li, Qizhong Zhang, Song Zhang, Lianmeng Chaozhou Branch of Chemistry and Chemical Engineering Guangdong Laboratory Chaozhou521000 China State Key Lab of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan430070 China Wuhan University of Technology Advanced Engineering Technology Research Institute of Zhongshan City Xiangxing Road 6 Zhongshan528400 China School of Civil Engineering and Architecture Wuhan University of Technology Wuhan430070 China Department of Applied Physics and Physico-Informatics Keio University Yokohama223-8522 Japan Hubei Key Laboratory of Advanced Technology for Automotive Components Wuhan University of Technology Wuhan430070 China

Hard coatings such as transition metal nitrides have been widely applied to improve the mechanical properties and tribological performance of cutting tools. The coatings in various multilayer structures or gradient structures have been designed to meet the demands of more severe service environments and more precise processing requirements. In this work, TiN/TiSiN coatings in several gradient&multilayered structures were deposited on cemented carbide by cathodic arc ion plating using TiSi alloy and Ti targets. The modulation period (Λ) of the multilayer varies gradually with thickness, ranging from 6 to 46 nm. The gradient multilayer coatings consist of nanocrystalline-amorphous composite with compact growth. The coating with modulation period first increasing and then decreasing has the highest hardness of 38 GPa and the maximum residual compressive stress of -2.71 GPa as well as the minimum coefficient of friction (COF) and wear rate. Gradient and multilayer structures moderate the brittleness caused by the presence of amorphous SiNx phase, and optimizes the mechanical properties and tribological performances of the coatings. © 2023, The Authors. All rights reserved.

关键词： Nanocrystals

来源：评论

学校读者我要写书评

暂无评论

Enhanced high-temperature strength of a Mg-4Sn-3Al-1 Zn alloy with good thermal stability via Mg2Sn precipitation

引用

Journal of Magnesium and Alloys 2025年

作者： Sun, Wei Deng, Yangchao Hu, Yuhan Zhan, Hongyi Yan, Kun Shuai, Sansan Guo, Enyu Zheng, Zebang Zeng, Guang School of Materials Science and Engineering Central South University Changsha410083 China China Science Lab General Motors Global Research and Development Shanghai 201206 China Department of Materials The University of Manchester ManchesterM13 9PL United Kingdom State Key Laboratory of Advanced Special Steels School of Materials Science and Engineering Shanghai University Shanghai 200444 China School of Materials Science and Engineering Dalian University of Technology Dalian116024 China State Key Laboratory of Solidification Processing Shaanxi Key Laboratory of High-Performance Precision Forming Technology and Equipment School of Materials Science and Engineering Northwestern Polytechnical University P.O.Box 542 Xi'an710072 China

With the growing demand for rapid and cost-effective solutions for lightweight magnesium alloys with excellent high-temperature mechanical properties, we investigated a heat-treatable RE-free magnesium alloy, Mg-4Sn-3Al-1Zn (TAZ431, wt.%), with remarkable thermal stability. The peak-aged TAZ431 alloy exhibits a 15 % increase in high-temperature (230 °C) yield strength, compared to the traditional commercial magnesium alloy, Mg-3Al-1Zn (AZ31, wt.%). In this work, we demonstrate that the basal Mg2Sn precipitates have a more pronounced hindrance effect on the non-basal slip systems, as evidenced by a combination of experiments (in-situ EBSD and dual beam TEM) and numerical simulations (Orowan model and VPSC). The distribution and morphology of Mg2Sn precipitates and cracks are quantitatively analyzed using a range of techniques including in-situ SEM and synchrotron X-ray tomography. Our results reveal that the decohension of grain boundary precipitates significantly promotes the formation of intergranular cracks, leading to ultimate fracture. The research comprehensively explains the impact of particle morphology, orientation, and distribution on precipitation strengthening and fracture modes at elevated temperatures, which is vital for the future development of high-temperature performance magnesium alloys. © 2025

关键词： Cracks

来源：评论

学校读者我要写书评

暂无评论

Eutectic Monbta(Wc)X Composites with Excellent Elevated Temperature Strength

SSRN

引用

SSRN 2022年

作者： Kang, Kejia Wang, Xiao Zhou, Weibing Li, Peibo Huang, Zihao Luo, Guoqiang Shen, Qiang Zhang, Lianmeng School of Electromechanical Engineering Henan University of Technology Zhengzhou450001 China State Key Lab of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan430070 China Chaozhou Branch of Chemistry and Chemical Engineering Guangdong Laboratory Hanjiang Laboratory Chaozhou521000 China State Key Lab of Silicate Materials for Architecture Wuhan University of Technology Wuhan430070 China National United Engineering Laboratory for Advanced Bearing Tribology Henan University of Science and Technology Luoyang471000 China

To develop materials with promising utilization future in the extreme environments of aerospace, the MoNbTa(WC) x composites were prepared by vacuum arc melting, of which the crystal structure, microstructure, and compression properties at elevated temperature were investigated. The MoNbTa(WC) x composites had eutectic structures that consisted of body-centered cubic (BCC) phase and eutectoid structures. The lamellar fine eutectoid structures were composed of BCC structured high entropy alloy (HEA) Mo-Nb-Ta-W and FCC structured carbide Mo-Nb-Ta-W-C. It was demonstrated that the ductility and elevated temperature strength was enhanced simultaneously combined with the effect of eutectic structures and WC addition. The optimal true yield strength and true fracture strain reached 1205 MPa and 29.2% in MoNbTa(WC) 0.9 at 1200 ℃, meanwhile, the fracture strain at ambient temperature was 13.96%. Distinct strain hardening was observed at the initial deformation stage of MoNbTa(WC) 0.9 at 1200 ℃. The compression performances of MoNbTa(WC) x were superior in comparison with most refractory high entropy alloys. © 2022, The Authors. All rights reserved.

关键词： Eutectics

来源：评论

学校读者我要写书评

暂无评论

Efficient full-path optical calculation of scalar and vector diffraction using the Bluestein method

引用

Light(Science & Applications) 2020年第1期9卷 872-882页

作者： Yanlei Hu Zhongyu Wang Xuewen Wang Shengyun Ji Chenchu Zhang Jiawen Li Wulin Zhu Dong Wu Jiaru Chu CAS Key Laboratory of Mechanical Behavior and Design of Materials Key Laboratory of Precision Scientific Instrumentation of Anhui Higher Education InstitutesDepartment of Precision Machinery and Precision InstrumentationUniversity of Science and Technology of ChinaHefei 230026China Department of Mechanical Engineering and Department of Civil and Environmental Engineering Massachusetts Institute of TechnologyCambridgeMA 02139USA State Key Laboratory of Advanced Technology for Materials Synthesis and Processing International School of Materials Science and EngineeringWuhan University of TechnologyWuhan 430070China Institute of Industry and Equipment Technology Hefei University of TechnologyHefei 230009China

Efficient calculation of the light diffraction in free space is of great significance for tracing electromagnetic field propagation and predicting the performance of optical systems such as microscopy,photolithography,and ***,existing calculation methods suffer from low computational efficiency and poor ***,we present a fast and flexible calculation method for computing scalar and vector diffraction in the corresponding optical regimes using the Bluestein *** computation time can be substantially reduced to the sub-second level,which is 105 faster than that achieved by the direct integration approach(~hours level)and 102 faster than that achieved by the fast Fourier transform method(~minutes level).The high efficiency facilitates the ultrafast evaluation of light propagation in diverse optical ***,the region of interest and the sampling numbers can be arbitrarily chosen,endowing the proposed method with superior *** on these results,full-path calculation of a complex optical system is readily demonstrated and verified by experimental results,laying a foundation for real-time light field analysis for realistic optical implementation such as imaging,laser processing,and optical manipulation.

关键词： calculation scalar faster

来源：评论

学校读者我要写书评

暂无评论

Hierarchically structured porous materials: synthesis strategies and applications in energy storage

引用

国家科学评论（英文版） 2020年第11期7卷 1667-1701页

作者： Liang Wu Yu Li Zhengyi Fu Bao-Lian Su State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan 430070 China Laboratory of Inorganic Materials Chemistry (CMI) University of Namur Namur B-5000 Belgium

To address the growing energy demands of sustainable development,it is crucial to develop new materials that can improve the efficiency of energy storage *** structured porous materials have shown their great potential for energy storage applications owing to their large accessible space,high surface area,low density,excellent accommodation capability with volume and thermal variation,variable chemical compositions and well controlled and interconnected hierarchical porosity at different length *** hierarchy benefits electron and ion transport,and mass diffusion and *** electrochemical behavior of hierarchically structured porous materials varies with different pore *** their relationship can lead to the defined and accurate design of highly efficient hierarchically structured porous materials to enhance further their energy storage *** this review,we take the characteristic parameters of the hierarchical pores as the survey object to summarize the recent progress on hierarchically structured porous materials for energy *** is the first of this kind exclusively to survey the performance of hierarchically structured porous materials from different porous *** those who are not familiar with hierarchically structured porous materials,a series of very significant synthesis strategies of hierarchically structured porous materials are firstly and briefly *** will be beneficial for those who want to quickly obtain useful reference information about the synthesis strategies of new hierarchically structured porous materials to improve their performance in energy *** effect of different organizational,structural and geometric parameters of porous hierarchy on their electrochemical behavior is then deeply *** outline the existing problems and development challenges of hierarchically structured porous materials that need to be addressed in renewable energy a

关键词： hierarchically structured porous materials synthesis strategies energy storage porous parameters geometric configuration

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：