检索结果-内蒙古大学图书馆

ChemPhysMater 2025年第1期4卷 78-85页

作者： Longqi Zhu Runze Wang Chen Wang Shuhan Yang Haizhen Liu Bo Xing Honghui Cheng Kuikui Wang Institute of Materials for Energy and Environment Laboratory of New Fiber Materials and Modern TextileGrowing Basis for State Key LaboratoryCollege of Materials Science and EngineeringQingdao UniversityQingdao 266071China MOE Key Laboratory of New Processing Technology for Non-ferrous Metals and Materials Guangxi Key Laboratory of Processing for Non-ferrous Metals and Featured MaterialsGuangxi UniversityNanning 530004China National Engineering Laboratory of Circular Economy Sichuan University of Science and EngineeringZigong 643000China School of Mechanical Engineering Yangzhou UniversityYangzhou 225127China Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology Changzhou UniversityChangzhou 213164China

Metal-cation doping is a fundamental strategy for enhancing catalyst ***-doped Ni_(0.85)Se/NF(Fe-Ni_(0.85)Se/NF)nanoparticles were prepared at 80°C via Fe^(2+)etching *** addition of Fe altered the coordination environment of the Ni species along with the catalyst's morphology,creating additional active ***,the synergistic interaction between the bimetallic components augmented the built-in activity and accelerated reaction *** Fe-Ni_(0.85)Se/NF electrocatalysts demonstrated remarkable catalytic activity for the oxygen evolution reaction(OER),with an acceptable overpotential of 276 mV and a Tafel slope of 58.1 mV dec^(−1)at 100 mA cm^(−2).Moreover,they demonstrated exceptional *** situ Raman and X-ray photoelectron spectroscopy(XPS)analyses showed that the excellent OER performance stemmed from the reconstruction-induced hydroxyl *** study offers a novel approach for streamlining the synthesis procedures and reducing the experimental costs for developing high-efficiency electrocatalysts.

关键词： Doping Selenylation Hydrothermal reaction Oxygen evolution reaction Electrocatalysts

来源：评论

学校读者我要写书评

暂无评论

Niobium oxide/MXene heterostructure for simultaneous production of ammonia and energy via rechargeable Zn-N_(2)battery system

引用

Journal of Energy Chemistry 2025年第4期103卷 448-457页

作者： Xinyu Dai Wei Zhang Ying Sun Zhenyi Du Zhanliang Tao Jingang Wang Wenhui Fang Xuehan Xing Yang Chen Hui Li Hao Zheng Jieshan Qiu Tianyi Ma Institute of Clean Energy Chemistry Key Laboratory for Green Synthesis and Preparative Chemistry of Advanced Materials of Liaoning ProvinceCollege of ChemistryLiaoning UniversityShenyang 110036LiaoningChina State Key Laboratory of Clean and Efficient Coal Utilization Taiyuan University of TechnologyTaiyuan 030024ShanxiChina Key Laboratory of Advanced Energy Materials Chemistry(Ministry of Education) Renewable Energy Conversion and Storage CenterCollege of ChemistryNankai UniversityTianjin 300071China College of Science Liaoning Petrochemical UniversityFushun 113001LiaoningChina College of Chemical Engineering State Key Laboratory of Chemical Resource EngineeringBeijing University of Chemical TechnologyBeijing 100029China Centre for Atomaterials and Nanomanufacturing(CAN) School of ScienceRMIT UniversityMelbourne VIC 3000Australia ARC Industrial Transformation Research Hub for Intelligent Energy Efficiency in Future Protected Cropping(E2Crop) Melbourne VIC 3000Australia College of Chemical State Key Laboratory of Chemical Resource EngineeringBeijing University of Chemical TechnologyBeijing 100029China

Aqueous Zn-N_(2)batteries with unique configuration are of potential for simultaneous N_(2)electro reduction and electricity generation,in which the electrocatalysts are critical for improving the NH_(3)yield and the energy ***,a heterostructure Nb_(2)O_5/Nb_(2)CT_(x)with abundant exposed Nb active sites and tuned electron density has been synthesized by in situ formation and anchoring of Nb_(2)O_5 nanoparticles on the surface of Nb_(2)CT_(x)MXene,which shows an enhanced N_(2)adsorption/activation *** heterostructure Nb_(2)O_(5/)Nb_(2)CT_(x)was used as the cathode of Zn-N_(2)battery that can deliver a peak power density of 1.25 mW cm^(-2)in 1.0 M KOH and can continuously produce NH_(3)with a yield of3.62μg h^(-1)mg_(ca)^(t-1).The NH_(3)formed in the battery system can be easily collected as a net product without circulating the ***,the Nb_(2)O_(5/)Nb_(2)CT_(x)has a long durability,evidenced by 70 h of operation at-0.4 V *** hydrogen electrode,which is the highest among the MXene-based electrocatalysts reported thus *** work may provide a new methodology based on Zn-N_(2)battery for sustainable and large-scale NH_(3)production with minimal energy consumption.

关键词： NH_(3)production Zn-N_(2)battery N_(2)Electroreduction Nb_(2)O_5/Nb_(2)CT_(x)heterostructure

来源：评论

学校读者我要写书评

暂无评论

Influences of particle size and composition on the hydrolysis behavior of MgO·nAl2O3 spinel

引用

Ceramics International 2025年

作者： Cao, Mengying Tu, Guangsheng Huang, Qing Liao, Jiaxing Jing, Zhengyang Chen, Bowen Tu, Bingtian Wang, Hao Wang, Weimin Fu, Zhengyi State Key Lab of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Hubei Wuhan430070 China Hubei Longzhong Laboratory Hubei Xiangyang441000 China

The hydrolysis characteristic of MgO·nAl2O3 powders poses significant challenges for fabricating large-sized and complex-shaped transparent ceramic components. In this work, the hydrolysis behavior of MgO·nAl2O3 powders with designed particle size and chemical composition was systematically investigated. The results ascertained that coarse MgAl2O4 powders synthesized at higher temperatures exhibited reduced surface-active sites, and alumina-rich spinel surfaces exposed decreased unsaturated Mg atoms that catalyze water dissociation. The OH− concentrations in MgAl2O4-coarse and MgO·1.8Al2O3 suspensions were 63 % and 32 % of that in MgAl2O4-fine one, respectively, indicating an effective inhibition of the hydrolysis reaction. Ultimately, the hydrolysis mechanism of MgO·nAl2O3 was elucidated, where the boehmite protective layer (∼15 nm) formed on the particle surface after hydrolysis. This study provides a fundamental understanding of the surface properties and hydrolysis behavior of MgO·nAl2O3, which is of great significance for the preparation of spinel transparent ceramics using aqueous gel-casting. © 2025 Elsevier Ltd and Techna Group S.r.l.

关键词： Surface reactions

来源：评论

学校读者我要写书评

暂无评论

Durable ruthenium oxide catalysts for water oxidation reaction

引用

Science China Chemistry 2025年第6期 2217-2233页

作者： Jixiang Jiao Ding Chen Hongyu Zhao Ying Dong Shichun Mu State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology

Water electrolysis is an important way for high-purity hydrogen production. However, the oxygen evolution reaction（OER）, as a key reaction, has a high energy barrier, and the associated catalyst is prone to failure. Therefore, efficient and stable OER catalysts are urgently required. Compared with commercial iridium oxide（IrO2）, ruthenium oxide（RuO2） has a lower price and higher catalytic activity for OER due to its location at the near-top of the volcano plot, but has lower structural stability. Thus, an in-depth understanding of the failure mechanism of RuO2is conducive to the reaction pathway design and structural modulation for obtaining higher stable Ru O2catalysts. Here, we discuss recent advances in the enhancement of the stability of RuO2catalysts. First, we analyze in depth the three failure modes of RuO2, including the oxidation of Ru, the lattice oxygen evolution,and the catalyst exfoliation during the OER process. Second, to improve the durability of RuO2catalysts, five modification strategies, comprising defective engineering, strain engineering, phase engineering, interface engineering and microenvironmental engineering, are summarized, and corresponding enhancement mechanisms are also discussed. Finally, the challenges and possible solutions for further breakthroughs of RuO2catalysts are proposed, and the future research trends and prospects of RuO2catalysts are also envisioned. Undoubtedly, this work will contribute to the understanding and design of highly stable OER catalysts and beyond.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Efficient separation of layered oxide cathode materials and Al collectors in spent lithium-ion batteries

引用

Journal of Cleaner Production 2025年 510卷

作者： Fu, Zhiyue Zeng, Weihao Wang, Juan Li, Yu Mu, Shichun State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Hubei Wuhan430070 China

With the growing scale of the lithium-ion battery market, the number of retired lithium-ion batteries (LIBs) increase exponentially. The recycling of spent LIBs not only reduces environmental pressure but also achieves resource recycling, making the necessity of recycling indispensable. Wherein the separation of cathode active materials from current collectors is a key step in the recycling process of spent LIBs, which directly affects the recycling efficiency and the reuse value of materials. Moreover, by recycling spent LIBs and extracting valuable metals from them, it is possible to alleviate the shortage of resources and realize the sustainable economic development. Among cathode materials, layered lithium nickel cobalt manganese oxide (NCM) has the highest recycling value as it contains more valuable metals such as lithium (Li), nickel (Ni), cobalt (Co) and manganese (Mn). Therefore, in this review we mainly summarize and analyze the latest research progress in the field of NCM cathode material separating from aluminum (Al) foil by focusing on its methods, principles, advantages and limitations. Also, it provides solutions to existing challenges, which have important reference significance to promote the sustainable recycling and use of spent LIBs. © 2025 Elsevier Ltd

关键词： Recycling

来源：评论

学校读者我要写书评

暂无评论

Unassisted CsPbBr₃-Cu₂O Tandem Devices for Solar-Driven Overall Water Splitting

引用

ChemCatChem 2025年

作者： Zheng, Chunyang Wang, Jize Zheng, Huiren Cao, Shaowen Peng, Yong State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Hubei Wuhan 430070 China

Generating sufficient photovoltage for solar-driven overall water splitting is challenging for a single photoelectrode. Herein, a face-to-face type unbiased tandem solar overall water splitting device based on CsPbBr₃-Cu₂O dual-photoelectrodes is reported. To realize the face-to-face configuration, the semitransparent CsPbBr₃ photoanode has been firstly prepared by integrating a transparent Ni-based multifunctional layer on a perovskite light-absorbing device, which achieves a low oxygen evolution reaction onset potential (E_on) of 0.14 V versus RHE. Subsequently, the hydrogen evolution reaction (HER) E_on and fill factor of the Cu₂O photocathode have been improved by constructing buried heterojunctions, which positively shifts it's HER E_on to 0.91 V versus RHE. The tandem device achieves a solar-to-hydrogen efficiency of 5.42%, a result of the matched E_on between the semitransparent CsPbBr₃ photoanode and the Cu₂O photocathode. This face-to-face tandem structure maximizes the utilization of solar energy and provides a viable strategy for the future development of solar water splitting systems based on perovskite-based photoelectrodes. © 2025 Wiley-VCH GmbH.

关键词： Cu2O photocathode Ni-based multifunctional layer Overall water splitting Semitransparent CsPbBr3 photoanode Unbiased tandem

来源：评论

学校读者我要写书评

暂无评论

Solar-driven H₂O₂ production by S-scheme heterojunction photocatalyst

引用

Chinese Journal of Catalysis 2025年第5期72卷 24-47页

作者： Li, Han Wang, Wang Xu, Kaiqiang Cheng, Bei Xu, Jingsan Cao, Shaowen School of Automotive Materials Hubei University of Automotive Technology Hubei Shiyan 442020 China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Hubei Wuhan 430070 China Hubei Technology Innovation Center for Advanced Composites Wuhan University of Technology Hubei Wuhan 430070 China School of Chemical and Environmental Engineering Shanghai Institute of Technology Shanghai 201418 China School of Chemistry and Physics & Centre for Materials Science Queensland University of Technology Brisbane 4001 QLD Australia

Hydrogen peroxide (H2O2), as an essential and green chemical, is extensively used in energy and environmental applications. However, the production of H2O2 primarily relies on the anthraquinone method, which is an ene... 详细信息

Hydrogen peroxide (H₂O₂), as an essential and green chemical, is extensively used in energy and environmental applications. However, the production of H₂O₂ primarily relies on the anthraquinone method, which is an energy-intensive method involving multi-step reactions, producing harmful by-product wastes. Solar-driven H₂O₂ production, an alternative route for H₂O₂ generation, is a green and sustainable technology since it only utilizes water and oxygen as feedstock. However, the rapid recombination of charge carriers as well as insufficient redox capability limit the photocatalytic H₂O₂ production performance. Constructing step-scheme (S-scheme) heterojunction photocatalysts has been regarded as an effective strategy to address these drawbacks because it not only achieves spatially separated charge carriers, but also preserves redox capability of the photocatalytic system. This paper covers the recent advances of S-scheme heterojunction photocatalysts for H₂O₂ production in terms of basic principles, characterization techniques, and preparation strategies. Moreover, the mechanism and advantages of S-scheme heterojunction for photocatalytic H₂O₂ generation are systematically discussed. The recent S-scheme heterojunction designs, including inorganic-organic heterojunction, inorganic-inorganic heterojunction, and organic-organic heterojunction, are summarized. Lastly, the challenges and research directions of S-scheme photocatalysts for H₂O₂ generation are presented. © 2025 Dalian Institute of Chemical Physics, the Chinese Academy of Sciences

关键词： Charge migration mechanism H2O2 photosynthesis Solar conversion Step-scheme heterojunction

来源：评论

学校读者我要写书评

暂无评论

materials and devices for high‐density,high‐throughput micro‐electrocorticography arrays

引用

Fundamental Research 2025年第1期5卷 17-28页

作者： Yang Xie Yanxiu Peng Jinhong Guo Muyang Liu Bozhen Zhang Lan Yin He Ding Xing Sheng Department of Electronic Engineering Beijing National Research Center for Information Science and TechnologyInstitute for Precision MedicineLaboratory of Flexible Electronics TechnologyIDG/McGovern Institute for Brain ResearchTsinghua UniversityBeijing 100084China Beijing Engineering Research Center of Mixed Reality and Advanced Display School of Optics and PhotonicsBeijing Institute of TechnologyBeijing 100081China School of Materials Science and Engineering The Key Laboratory of Advanced Materials of Ministry of EducationState Key Laboratory of New Ceramics and Fine ProcessingLaboratory of Flexible Electronics TechnologyTsinghua UniversityBeijing 100084China

The pursuit of precisely recording and localizing neural activities in brain cortical regions drives the development of advanced electrocorticography(ECoG)*** progress has led to the emergence of micro-ECoG(μECoG)devices with sub-millimeter *** review presents the current research status,development directions,potential innovations and applications of high-density,high-throughputμECoG ***,we summarize the challenges associated with accurately recording single or multiple neurons using existingμECoG devices,including passive multielectrode and active transistor ***,we focus on cutting-edge advancements in passiveμECoG devices by discussing the design principles and fabrication strategies to optimize three key parameters:impedance,mechanical flexibility,and ***,recent findings highlight the need for further research and development in active transistor arrays,including silicon,metal oxide,and solution-gated *** active transistor arrays have the potential to unlock the capabilities of high-density,high-throughputμECoG devices and overcome the limitations of passive multielectrode *** review explores the potential innovations and applications ofμECoG devices,showcasing their effectiveness for both brain science research and clinical applications.

关键词： Electrocorticography Micro-electrocorticography Flexible electronics Bioelectronics Neural electrode array

来源：评论

学校读者我要写书评

暂无评论

Research on the burst failure analysis method of type IV cylinders based on the fiber strength reduction effect

引用

Fuhe Cailiao Xuebao/Acta Materiae Compositae Sinica 2025年第5期42卷 2567-2582页

作者： Li, Ruiqi Hu, Haixiao Li, Shuxin Chen, Hongda Cao, Dongfeng Liu, Hao Zheng, Kaidong Zhang, Yu Liu, Rui State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan430070 China National Energy Key Laboratory for New Hydrogen-ammonia Energy Technologies Foshan Xianhu Laboratory Foshan528200 China School of Science Wuhan University of Technology Wuhan430070 China School of Materials Science and Engineering Wuhan University of Technology Wuhan430070 China General Research and Development Institute China FAW Co. Changchun130000 China

Composite material hydrogen storage cylinders are the most effective solution for high-pressure gaseous hydrogen storage. The carbon fiber fully wrapped plastic liner cylinder (Type IV cylinder) is the most important potential in the development of hydrogen storage. Accurately predicting the burst pressure and failure mode of type IV cylinders is basement for the lightweight design of these cylinders. Current burst failure prediction methods are developed base on traditional laminated structural models, where the influence of fiber bundles cross undulation that occurs during the helical winding process are not considered. This paper comprehensively investigated the influence of fiber bundles cross undulation on the fiber strength by combining numerical and experimental approaches, and a failure prediction method which takes into account of the strength knock-down effect was developed for type IV cylinders. The burst pressures and failure locations of three different types of IV cylinders were predicted and compared with the ones that predicted by traditional method which does not consider the strength knock-down effect. The physical bursting experiments were conducted, and the results validate that the numerical analysis method considering the strength knock-down effect can give more accurate prediction of the failure location and reduce the prediction error of the bursting pressure, the maximum error is reduced from +15.42% to +6.07%. © 2025 Beijing University of Aeronautics and Astronautics (BUAA). All rights reserved.

关键词： Convergence of numerical methods

来源：评论

学校读者我要写书评

暂无评论

Optimization of vat photopolymerization resin formulation for digital light processing three-dimensional printing of Si3N4 ceramics

引用

International Journal of Applied Ceramic technology 2025年

作者： Wang, Xuye Duan, Wenyan Li, Shan Liu, Bingshan Wang, Gong Chen, Fei State Key Laboratory of Advanced Technology for Materials Synthesis and Processing International School of Materials Science and Engineering Wuhan University of Technology Wuhan China Technology and Engineering Centre of Space Utilization Chinese Academy of Sciences Beijing China

This study aims to optimize the formulation of vat photopolymerization resin for digital light processing (DLP) three-dimensional (3D) printing of Si3N4 ceramics to address the challenges posed by their high refractive index. Initially, we evaluated nine commonly used monomers and selected acryloyl morpholine, propoxylated neopentyl glycol diacrylate, and trimethylolpropane ethoxylated triacrylate based on their quantitative performance. We then employed a formulation experimental design to determine the optimal monomer ratio of 25:60.9:14.1. Furthermore, we optimized the prepolymer (epoxy acrylate) and plasticizer (2,2,4-trimethyl-1,3-pentanediol diisobutyrate) contents to minimize monomer shrinkage, selecting optimal values of 20 wt.% and 10 wt.%, respectively. Based on these optimizations, we determined the ideal concentrations of photoinitiator, dispersant, and thixotropic agent to be 3, 2, and 2 wt.%, respectively. Finally, using the optimized resin formulation, we prepared a high-solid-content Si3N4 slurry and successfully printed high-precision, complex Si3N4 green structures. This demonstrates the practical applicability of the optimized vat photopolymerization resin formulation, laying a solid foundation for the development of Si3N4 ceramics in DLP 3D printing. © 2025 The American Ceramic Society.

关键词： Silicon nitride

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：