检索结果-内蒙古大学图书馆

SSRN 2022年

作者： Huang, Jun Li, Yangyang Yuan, Guohu Liu, Qing Zuo, Tong Xu, Guangqing Lv, Jun Ding, Xiaoyu Hong, Yu Luo, Laima Tan, Xiaoyue Chen, JunLing Wu, Yuchen School of Materials Science and Engineering Hefei University of Technology Hefei230009 China China International S&T Cooperation Base for Advanced Energy and Environmental Materials Hefei University of Technology Hefei230009 China Institute of Laser Advanced Manufacturing Zhejiang University of Technology Hangzhou310014 China Engineering Research Center of High Performance Copper Alloy Materials and Processing Ministry of Education Hefei230009 China Chinese Academy of Sciences HFIPS Institute of Plasma Physics Hefei230031 China Key Laboratory of Advanced Functional Materials and Devices of Anhui Province Anhui Provincial International S&T Cooperation Base for Advanced Energy Materials Hefei University of Technology Hefei230009 China

The microstructure, composition and surface roughness of W-PFMs were analyzed by scanning electron microscopy(SEM), X-ray diffraction(XRD) and atomic force microscopy(AFM) under different He + irradiating conditions. Apparent roughness(damage) evolution in the surfaces of W-PFMs were studied, revealing the forming process of wavy, step-like and fuzz structures under different irradiating doses. The differences in the corrosion resistance of unirradiated as well as irradiated W-PFMs were investigated respectively, by potentiodynamic polarization curves and neutral salt spray tests(NSS). The experimental results showed that the He + irradiated materials(W-FZ60) had better corrosion resistance, with 3.79 times of AC impedance value than that of unirradiated tungsten. After 720 h of neutral salt spray test, the surface of unirradiated specimen showed numbers of continuous cracks in the substrate. In contrast, no apparent micro-cracks and other damages were found in the surface of He + irradiated specimens under the same NSS testing. In this paper, the macro- and micro- bridge had been built to elaborate the damage evolution in irradiating, such as the fuzz-like structures formed in higher irradiations seems to be the "adsorption film" in this study, which played important roles in blocking access to corrosives, further enhancing corrosion resistance of the irradiated W-PFMs. © 2022, The Authors. All rights reserved.

关键词： Corrosion resistance

来源：评论

学校读者我要写书评

暂无评论

In-Situ Growth of Z-Scheme Ag/Ppy/Bivo4 Core-Shell Structure for Efficient Co2 Photoreduction into Hydrocarbon Fuels

SSRN

引用

SSRN 2022年

作者： Guo, Xin Sun, Xiao-Jie Wang, Zhi-Yuan Zhang, Jia-Hui Hu, Yu-Feng Liu, Yan-Duo State Key Laboratory of Heavy Oil Processing and High Pressure Fluid Phase Behavior Property Research Laboratory China University of Petroleum Beijing102249 China School of Chemistry and Materials Science University of Science and Technology of China Hefei Anhui230026 China College of Chemistry and Chemical Engineering Shanxi University Taiyuan030006 China

Photocatalytic reduction of CO2 to hydrocarbons (e.g., CH4) or CO under mild conditions, providing a feasible and promising method for the environmental remediation and utilization of carbon resources. However, since CO2-to-CO is a two‑electron process, and even CO2-to-CH4 is an eight-electron reaction, it is a challenging task to achieve CO2 activation with an extremely short effective charge lifetime. In this paper, a synergistic effect strategy is used to prepare Ag nanoparticles modified PPy/BiVO4 Z-Scheme composites for synergizing the charge separation and surface catalytic processes in CO2 reduction reaction. With the joint efforts of synergy, the optimal photocatalyst achieves an efficient CO2 reduction yield (5.92 μmol·g-1·h-1) with an exceptionally high CO selectivity of 85.8% and the corresponding O2 evolution. Based on the result analysis, it can be clearly proved that the excellent CO2 reduction performance relies on the Z‑Scheme charge transfer mechanism between PPy/BiVO4 composites interface and the strong catalytic effect of Ag nanoparticles on CO2. Furthermore, the detailed processes of deoxygenation and proton acquisition during CO2 reduction is revealed by in-situ DRIFTS and NAP-XPS. This paper demonstrates a strategy for designing efficient photocatalysts toward reduction of CO2 to higher value-added chemicals, and highlights the importance of catalysis and charge separation to the synergy of key steps in catalytic reactions. © 2022, The Authors. All rights reserved.

关键词： Silver nanoparticles

来源：评论

学校读者我要写书评

暂无评论

Core-Shell Cocuox@Mox (M = Nb, Ti and CE) Catalysts with Outstanding Durability and Resistance to H2o for the Catalytic Combustion of O-Dichlorobenzene

SSRN

引用

SSRN 2022年

作者： Wu, Shixing Zhao, Haijun Zhicheng, Tang Zhang, Jiyi State Key Laboratory for Oxo Synthesis and Selective Oxidation National Engineering Research Center for Fine Petrochemical Intermediates Lanzhou Institute of Chemical Physics Chinese Academy of Sciences Lanzhou730000 China School of Petroleum and Chemical Lanzhou University of Technology Lanzhou730050 China Yantai Zhongke Research Institute of Advanced Materials and Green Chemical Engineering Shandong Laboratory of Yantai Advanced Materials and Green Manufacturing Yantai264006 China

Configuring Co-based catalysts with excellent activity, durability, anti-H2O capability and superior chlorine resistance is an effective strategy for catalytic combustion of CVOCs. In this work, we elaborated a CoCuOx catalysts with core-shell structure. The CoCuOx dodecahedron surface was successfully coated with shells of Nb2O5, TiO2, and CeO2 using a range of conventional synthesis methods. The prepared core-shell catalysts (CoCuOx@TiO2 and CoCuOx@Nb2O5) were found to generate plentiful acid sites as well as abundant lattice oxygen species, indicating a strong interaction between the core and shell layers that resulted in a significant enhancement of catalytic activity. In addition, by-products generation was successfully controlled by acid sites and lattice oxygen species. More importantly, the core-shell structure design significantly improved the thermal stability and anti-H2O capability of the catalysts. Furthermore, the possible formation pathways and reaction mechanisms were proposed based on in-situ FTIR and selectivity analysis. © 2022, The Authors. All rights reserved.

关键词： Titanium dioxide

来源：评论

学校读者我要写书评

暂无评论

In Situ Cation Exchange Enables Air-Processed Inverted Perovskite Solar Cells with over 25% Efficiency and Enhanced Stability

引用

Angewandte Chemie 2025年第26期137卷

作者： Ligang Xu Wei Qian Yuhan Zhou Zijie Wei Hailong Wang Wenzhen Lv Jing Li Wenchao Huang Lin Yao Runfeng Chen Wei Huang State Key Laboratory of Flexible Electronics (LoFE) & Institute of Advanced Materials (IAM) Nanjing University of Posts & Telecommunications 9 Wenyuan Road Nanjing 210023 China State Key Laboratory of Silicon and Advanced Semiconductor Materials Zhejiang University Hangzhou 310027 China National Laboratory of Solid State Microstructures Collaborative Innovation Center of Advanced Microstructures School of Physics Nanjing University Nanjing 210093 China Key Laboratory of Photochemical Conversion and Optoelectronic Materials Technical Institute of Physics and Chemistry Chinese Academy of Sciences Beijing 100190 China Key State Laboratory of Advanced Technology for Materials Synthesis and Processing School of Materials Science and Engineering Wuhan University of Technology Wuhan 430070 China China-UK Low Carbon College Shanghai Jiao Tong University 3 Yinlian Road Lingang Shanghai 201306 China Frontiers Science Center for Flexible Electronics (FSCFE) MIIT Key Laboratory of Flexible Electronics (KLoFE) Northwestern Polytechnical University Xi'an 710072 China

The scalable fabrication of inverted perovskite solar cells (IPSCs) in humid air with an antisolvent-free process is essential for future industrial applications. However, high humidity poses significant challenges for achieving high-quality perovskite films, making it difficult to attain efficient IPSCs under ambient conditions. Here, we present an in situ cation exchange strategy to create a compact and uniform PbI₂ shell on the perovskite surface by using ZnI₂ in acetonitrile (ACN), where Zn 2+ replaces Pb 2+ . This transformation is attributed to the surface defects of the perovskite, which undergo a cation exchange reaction in humid air, forming a compact PbI₂ shell. The n-type PbI₂ shell effectively encapsulates the perovskite films, minimizing air exposure while optimizing energy level alignment, thereby enhancing electron transport and extraction. As a result, we demonstrate IPSCs with efficiencies of 25.2% under ambient conditions (25°–30 °C, 60% ± 10% relative humidity [RH]), on par with state-of-the-art devices fabricated in inert atmospheres. The devices demonstrated remarkable stability, enduring aging tests under the International Summit on Organic Photovoltaic Stability (ISOS) protocols ISOS-D-1I and ISOS-D-2I for over 4770 and 2000 h, respectively.

关键词： Air-processed Antisolvent-free Cation exchange reaction Inverted perovskite solar cells Stability

来源：评论

学校读者我要写书评

暂无评论

AI4materials: Transforming the landscape of materials science and enigneering

Review of Materials Research

引用

Review of materials Research 2025年第1期1卷

作者： Xue Jiang Dezhen Xue Yang Bai William Yi Wang Jianjun Liu Mingli Yang Yanjing Su Beijing Advanced Innovation Center for Materials Genome Engineering Institute for Advanced Materials and Technology University of Science and Technology Beijing Beijing 100083 China State Key Laboratory for Mechanical Behavior of Materials Xi'an Jiaotong University Xi'an 710049 China State Key Laboratory of Solidification Processing Northwestern Polytechnical University Xi'an 710072 China State Key Laboratory of High Performance Ceramics and Superfine Microstructure Shanghai Institute of Ceramics Chinese Academy of Sciences Shanghai 200050 China Institute for Nanobiomedical Technology and Membrane Biology Sichuan University Chengdu 610041 China Chinese Materials Research Society Beijing 100083 China

New materials, crucial for economic and technological progress, are prioritized globally with strategies to accelerate their advancement through big data and AI. AI for materials (AI4Mater) serves as an overall framework for integrating AI into materials Science and Engineering, which is structured around three main elements: materials data infrastructure, AI4Mater techniques, and applications. This article reviews the development procedure and recent innovations in materials data infrastructure, machine learning in materials, autonomous experiment, intelligent computation, and intelligent manufacture. These efforts aim to foster open access to AI resources and enhance the collective advancement of materials science, ultimately accelerating breakthroughs and elevating the engineering application of new materials in a sustainable manner.

关键词： Intelligent computation Machine learning materials data infrastructure Autonomous experiment Intelligent manufacture

来源：评论

学校读者我要写书评

暂无评论

An Injectable Hydroxyapatite Microsphere Filler Loaded with Ghk-Cu Tripeptide for Anti-Inflammatory and Antioxidant

SSRN

引用

SSRN 2025年

作者： Hu, Die Zhang, Xuexun Gong, Shiwen Ma, Wentao Cheng, Bo Yang, Jing Yan, Lesan Li, Binbin Qiu, Tong Wang, Xinyu State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan430070 China Sanya Science and Education Innovation Park Wuhan University of Technology Sanya572000 China Foshan Xianhu Laboratory of the Advanced Energy Science and Technology Guangdong Laboratory Xianhu hydrogen Valley Foshan528200 China Biomedical Materials and Engineering Research Center of Hubei Province Wuhan University of Technology Wuhan430070 China School of Foreign Languages Wuhan University of Technology Wuhan430070 China Department of Stomatology Zhongnan Hospital of Wuhan University Wuhan430060 China

With the wide application of soft tissue fillers, implant material-induced inflammatory reactions have become a key factor affecting the therapeutic efficacy. This study developed an injectable filler with enhanced anti-inflammatory and antioxidant effects by adsorbing glycyl-L-histidyl-L-lysine copper complex (GHK-Cu) onto hydroxyapatite microspheres (HAPs), marking the first combination of HAPs and GHK-Cu to address inflammation caused by soft tissue fillers. GHK-Cu was successfully loaded onto HAPs by electrostatic adsorption. HAPs were then mixed with carboxymethyl cellulose (CMC), glycerol (GLY), and water to form GHK-Cu@CMHA gel. The study focus on the effective combination of HAPs as a carrier for sustained GHK-Cu delivery and the anti-inflammatory properties of GHK-Cu. GHK-Cu@CMHA exhibits sustained release properties for 7 days, which ensures prolonged therapeutic effects, minimizes peptide waste and reduces injection frequency, with good flowability and injectability. In the model of LPS-induced inflammation model in vivo and in vitro, GHK-Cu@CMHA gel reduced levels of inflammatory factors and Reactive oxygen species (ROS) levels decreased, while superoxide dismutase (SOD) activity was enhanced. In this process, H&E staining and Masson staining revealed significant collagen deposition. These findings further confirm that GHK-Cu@CMHA is a novel injectable soft tissue filler with good anti-inflammatory and antioxidant properties, which holds well potential for inflammation inhibition. © 2025, The Authors. All rights reserved.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Orbital Origin of the Intrinsic Planar Hall Effect

引用

Physical Review Letters 2024年第5期132卷 056301-056301页

作者： Hui Wang Yue-Xin Huang Huiying Liu Xiaolong Feng Jiaojiao Zhu Weikang Wu Cong Xiao Shengyuan A. Yang Research Laboratory for Quantum Materials Singapore University of Technology and Design Singapore 487372 Singapore Division of Physics and Applied Physics School of Physical and Mathematical Sciences Nanyang Technological University Singapore 637371 Singapore School of Sciences Great Bay University Dongguan 523000 China Great Bay Institute for Advanced Study Dongguan 523000 China School of Physics Beihang University Beijing 100191 China Max Planck Institute for Chemical Physics of Solids Nöthnitzer Strasse 40 D-01187 Dresden Germany Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials Ministry of Education Shandong University Jinan 250061 China Institute of Applied Physics and Materials Engineering University of Macau Macau China Department of Physics The University of Hong Kong Hong Kong China HKU-UCAS Joint Institute of Theoretical and Computational Physics at Hong Kong Hong Kong China

Recent experiments reported an antisymmetric planar Hall effect, where the Hall current is odd in the in plane magnetic field and scales linearly with both electric and magnetic fields applied. Existing theories rely exclusively on a spin origin, which requires spin-orbit coupling to take effect. Here, we develop a general theory for the intrinsic planar Hall effect (IPHE), highlighting a previously unknown orbital mechanism and connecting it to a band geometric quantity—the anomalous orbital polarizability (AOP). Importantly, the orbital mechanism does not request spin-orbit coupling, so sizable IPHE can occur and is dominated by an orbital contribution in systems with weak spin-orbit coupling. Combined with first-principles calculations, we demonstrate our theory with quantitative evaluation for bulk materials TaSb2, NbAs2, and SrAs3. We further show that AOP and its associated orbital IPHE can be greatly enhanced at topological band crossings, offering a new way to probe topological materials.

关键词： Anomalous Hall effect Transport phenomena Topological materials First-principles calculations

来源：评论

学校读者我要写书评

暂无评论

Preparation of (1-x) wt% (Mg0.4Zn0.6)2SiO4-x wt% CaTiO3 composite ceramics and microstrip antenna application design

引用

materials Science and Engineering: B 2025年 321卷

作者： Zhang, Miao Liu, Xiangchun Zhang, Kai Wei, Ziyao Liu, Zhongsheng Jiang, Weibo Chen, Danni Guan, Jiayan Zhang, Hanbi Wang, Jiahui Liu, Jiahao Gao, Feng Department of Materials Science and Engineering Xi'an University of Science and Technology Xi'an710054 China State Key Laboratory of Solidification Processing School of Materials Science and Engineering Northwestern Polytechnical University Xi'an710072 China 727031 China

In this paper, (1-x) wt% (Mg0.4Zn0.6)2SiO4-x wt% CaTiO3 composite ceramics were prepared by the solid-phase method. Adding CaTiO3 reduces the sintering temperature of the ceramics, and the resonance frequency temperature coefficient of the composite ceramics can be brought close to 0 value by adjusting the x value in the (1-x) wt% (Mg0.4Zn0.6)2SiO4-x wt% CaTiO3 composite ceramics. When the sintering temperature was 1175 °C, the 95 wt% (Mg0.4Zn0.6)2SiO4-5 wt% CaTiO3 composite ceramics had the largest bulk density and relatively good dielectric (1 MHz) properties and microwave dielectric properties: ρ = 3.70 g/cm3, tanδ = 8.97 × 10−4, Εr = 8.79, Q × f = 8959 GHz, and τf = −17.95 ppm/oC. A microstrip patch antenna is designed. The simulation results show that the S11 parameter is −26.20 dB, the antenna gain is 5.50 dB, and the radiation efficiency is about 91.4 % when the resonant frequency is 2.45 GHz. © 2025 Elsevier B.V.

关键词： Microstrip antennas

来源：评论

学校读者我要写书评

暂无评论

Effects of Ni-Doping on Microstructures and Properties of Zn-20Sn High-Temperature Lead-Free Solders

引用

Chinese Journal of Structural Chemistry 2019年第7期38卷 1107-1115页

作者： TIAN Jun HONG Li-Hua HONG Chun-Fu YAN Xiao-Hui DAI Pin-Qiang School of Materials Science and Engineering Fuzhou University Fuzhou 350116 China School of Materials Science and Engineering Fujian University of Technology Fuzhou 350118 China Fujian Provincial Key Laboratory of Advanced Materials Processing and Application Fuzhou 350118 China

In the present work, the effect of Ni doping on the microstructures and properties of Zn-20 Sn high temperature lead-free solder has been investigated. Interestingly,Ni was present as the form of Ni-Zn compounds in the microstructure of Zn-20 Sn-xNi *** the Ni-doping amount was 0.2~0.4 wt.%, the presence of δ phase was found, and when the doping amoun was 0.8 wt.%, the presence of γ phase was observed. With the increase of Ni content, the liquidus temperature increased but the solidus temperature did not change obviously. In addition, the microhardness and electrical resistivities of Zn-20 Sn-xNi solder increased gradually. And the spreading area and shear strength increased firstly but decreased afterwards. When the content of Ni was 0.4 wt.%, the spreading area and shear strength of solder reached to be maximum. After the addition of 0.4 wt.% Ni, the microstructure of the interfacial intermetallic compound(IMC) layer of the interface didn't change, but the total thickness of the IMC layer reduced. The δ-phase was embedded in the grain boundary of ε-Cu Zn5, which hindered the diffusion of atoms. The thickness of IMC layer at the interface reduced, which led to the improvement of the shear strength of the interface.

关键词： lead-free solder high temperature solders Zn-20Sn alloy Ni intermetallic compounds microstructure

来源：评论

学校读者我要写书评

暂无评论

Electrochemical Hydrophobic Tri-layer Interface Rendered Mechanically Graded Solid Electrolyte Interface for Stable Zinc Metal Anode

引用

Angewandte Chemie 2024年第9期136卷

作者： Dr. Chaozheng Liu Dr. Wangwang Xu Dr. Lei Zhang Daotong Zhang Dr. Weina Xu Dr. Xiaobin Liao Weimin Chen Dr. Yizhong Cao Prof. Mei-Chun Li Prof. Changtong Mei Dr. Kangning Zhao Co-Innovation Center of Efficient Processing and Utilization of Forest Resources College of Materials Science and Engineering Nanjing Forestry University Nanjing 210000 China Mechanical & Industrial Engineering Department Louisiana State University Baton Rouge LA-70803 USA State Key Laboratory of Advanced Technology for Materials Synthesis and Processing International School of Materials Science and Engineering Wuhan University of Technology Wuhan 430070 China School of Materials Science and Engineering Dongguan University of Technology Guangdong 523808 China College of Chemistry and Materials Engineering Zhejiang A&F University Hangzhou 311300 China Laboratory of Advanced Separations (LAS) École Polytechnique Fédérale de Lausanne (EPFL) Sion 1950 Lausanne Switzerland

The aqueous zinc-ion battery is promising as grid scale energy storage device, but hindered by the instable electrode/electrolyte interface. Herein, we report the lean-water ionic liquid electrolyte for aqueous zinc metal batteries. The lean-water ionic liquid electrolyte creates the hydrophobic tri-layer interface assembled by first two layers of hydrophobic OTF − and EMIM + and third layer of loosely attached water, beyond the classical Gouy–Chapman–Stern theory based electrochemical double layer. By taking advantage of the hydrophobic tri-layer interface, the lean-water ionic liquid electrolyte enables a wide electrochemical working window (2.93 V) with relatively high zinc ion conductivity (17.3 mS/cm). Furthermore, the anion crowding interface facilitates the OTF − decomposition chemistry to create the mechanically graded solid electrolyte interface layer to simultaneously suppress the dendrite formation and maintain the mechanical stability. In this way, the lean-water based ionic liquid electrolyte realizes the ultralong cyclability of over 10000 cycles at 20 A/g and at practical condition of N/P ratio of 1.5, the cumulated areal capacity reach 1.8 Ah/cm 2 , which outperforms the state-of-the-art zinc metal battery performance. Our work highlights the importance of the stable electrode/electrolyte interface stability, which would be practical for building high energy grid scale zinc-ion battery.

关键词： Electrochemical Tri-Layer Interface Hydrophobic Ionic Liquid Mechanically Graded Solid Electrolyte Interface Zinc Battery

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：