检索结果-内蒙古大学图书馆

arXiv 2023年

作者： Yang, Allen Jian Wu, Liang Liu, Yanran Zhang, Xinyu Han, Kun Huang, Ying Li, Shengyao Loh, Xian Jun Zhu, Qiang Su, Rui Nan, Ce-Wen Wang, Xiao Renshaw Division of Physics and Applied Physics School of Physical and Mathematical Sciences Nanyang Technological University 637371 Singapore Faculty of Material Science and Engineering Kunming University of Science and Technology Yunnan Kunming650093 China Information Materials and Intelligent Sensing Laboratory of Anhui Province Institutes of Physical Science and Information Technology Anhui University Hefei230601 China State Key Laboratory of Environment-friendly Energy Materials Southwest University of Science and Technology Mianyang621010 China A*STAR Innovis 2 Fusionopolis Way 138634 Singapore School of Chemistry Chemical Engineering and Biotechnology Nanyang Technological University 21 Nanyang Link 637371 Singapore School of Electrical and Electronic Engineering Nanyang Technological University 637371 Singapore MajuLab International Joint Research Unit UMI 3654 CNRS Université Côte d’Azur Sorbonne Université National University of Singapore Nanyang Technological University 637371 Singapore State Key Laboratory of New Ceramics and Fine Processing School of Materials Science and Engineering Tsinghua University Beijing100084 China

Correlated oxides and related heterostructures are intriguing for developing future multifunctional devices by exploiting their exotic properties, but their integration with other materials, especially on Si-based platforms, is challenging. Here we demonstrate van der Waals heterostructures of La0.7Sr0.3MnO3 (LSMO), a correlated manganite perovskite, and MoS2 on Si substrates with multiple functions. To overcome the problems due to the incompatible growth process, technologies involving freestanding LSMO membranes and van der Waals force-mediated transfer were used to fabricate the LSMO-MoS2 heterostructures. The LSMO-MoS2 heterostructures exhibit a gate-tunable rectifying behaviour, based on which metal-semiconductor field-effect transistors (MESFETs) with on-off ratios of over 104 can be achieved. The LSMO-MoS2 heterostructures can function as photodiodes displaying considerable open-circuit voltages and photocurrents. In addition, the colossal magnetoresistance of LSMO endows the LSMO-MoS2 heterostructures with an electrically tunable magnetoresponse at room temperature. Our work not only proves the applicability of the LSMO-MoS2 heterostructure devices on Si-based platform but also demonstrates a paradigm to create multifunctional heterostructures from materials with disparate properties. © 2023, CC BY-NC-SA.

关键词： Heterojunctions

来源：评论

学校读者我要写书评

暂无评论

Huazhong University of Science and technology

引用

China Foundry 2019年第1期16卷 80-81页

作者： state key laboratory of materials processing and Die&Mould technology State Key Laboratory of Materials Processing and Die & Mould Technology

Since 1952,Huazhong University of Science and technology(HUST)was founded,or even further back,the German doctor Erich Paulun founded Tongji Medical University(TMU)in Shanghai in *** 2000,the former HUST and the forme... 详细信息

关键词： Huazhong University of Science and technology

来源：评论

学校读者我要写书评

暂无评论

Junction performance in sensing NO 2 at room temperature with a Mn-doped TiO 2 /TiO 2 bilayer structure

引用

Sensors and Actuators B: Chemical 2025年 443卷

作者： Jun Min Yangbo Chen Zhuoya He Wen Cheng Xinyi Li Xuankun Zan Hanru Jiang Tianyu Ma Yuwen Bao Haoshuang Gu Kevin Homewood Yun Gao Fengxiang Chen Ming Lei Lakmini Jayasingha Xiaohong Xia Ministry-of-Education Key Laboratory for the Green Preparation and Application of Functional Materials School of Materials Science & Engineering Hubei University Wuhan 430062 China State Key Laboratory of New Textile Materials and Advanced Processing Technologies Wuhan Textile University No.1 Sunshine Avenue Jiangxia District Wuhan 430200 China Wuhan Micro & Nano Sensor Technology Co. Ltd. Xingye Building Wuda Science and Technology Park Donghu New Technology Development Zone Wuhan Hubei 430223 China Department of Instrumentation and Automation Technology Faculty of Technology University of Colombo Colombo 03 Sri Lanka

Constructing of hetero/homojunctions is widely recognized as the most promising approach for enhancing the gas sensing performance of semiconductor materials. While direct evidence of the junction performance is rarely reported. Here, we fabricated Mn-doped TiO 2 /TiO 2 bilayer homojunction thin films using a two-step hydrothermal method and applied them to the room-temperature detection of nitrogen dioxide (NO 2 ). The homojunction not only demonstrated excellent sensing performance, with a high response value (23.3) and a fast response time (5 s), but also good repeatability and stability. The sensing performance of the homojunction under back-to-back bias, reverse bias, and forward bias was measured, enabled by the specially designed bilayer structure. The back-to-back bias provided the optimal performance, followed by the reverse bias, and then forward bias. This suggests that all the junctions within the structure contribute to the sensing performance, with the reverse bias being the primary contributor. The barrier heights in air and in the presence of NO 2 were calculated, and the sensing mechanism was accordingly elucidated.

关键词：

来源：评论

学校读者我要写书评

暂无评论

[email protected] @SiO 2 microcapsules with controlled porosity for whole-cell based enantioselective biosynthesis of ( S )−1-phenylethanol

引用

Colloids and Surfaces B: Biointerfaces 2022年 214卷

作者： Li Wang Bo-Bo Zhang Xiao-Yu Yang Bao-Lian Su State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Luoshi Road 122 Wuhan 430070 China Laboratory of Inorganic Materials Chemistry (CMI) University of Namur 61 Rue de Bruxelles Namur 5000 Belgium Guangdong Provincial Key Laboratory of Marine Biotechnology Institute of Marine Sciences Department of Biology College of Science Shantou University Shantou 515063 China

Whole-cell biocatalysis, owing to its high enantioselectivity, environment friendly and mild reaction condition, show a great prospect in chemical, pharmaceutical and fuel industry. However, several problems still limit its wide applications, mainly concerning the low productivity and poor stability. Although the biocatalyst encapsulated in the most-commonly-used alginate hydrogels demonstrate enhanced stability, it still suffers from low biocatalytic productivity, long-term reusability and poor mass diffusion control. In this work, hybrid [email protected] @SiO 2 microcapsules with controlled porosity are designed to encapsulate yeast cells for the asymmetric biosynthesis of ( S )− 1-phenylethonal from acetophenone. The hybrid microcapsules are formed by the ionic cross-linking of alginate, the polymerization of dopamine monomers and the protamine-assisted colloidal packing of uniform-sized silica nanoparticles. Alginate provides the encapsulated cells with highly biocompatible environment. Polydopamine enables to stimulate the biocatalytic productivity of the encapsulated yeast cells. Silica shells can not only regulate the mass diffusion in biocatalysis but also enhance the long-term mechanical and chemical stability of the microcapsules. The morphology, structure, chemical composition, stability and molecular accessibility of the hybrid microcapsules are investigated in detail. The viability and asymmetric bioreduction performance of the cells encapsulated in microcapsules are evaluated. The 24 h product yield of the cells encapsulated in the hybrid microcapsules shows 1.75 times higher than that of the cells encapsulated in pure alginate microcapsules. After 6 batches, the 24 h product yield of the cells encapsulated in the hybrid microcapsules is well maintained and 2 times higher than that of the cells encapsulated in pure alginate microcapsules. Therefore, the hybrid microcapsules designed in this study enable to enhance the asymmetric biocatalytic activity,

关键词： Hybrid hydrogel Surface coating Colloidal packing Ordered porosity Cell encapsulation Asymmetric bioreduction

来源：评论

学校读者我要写书评

暂无评论

Surface Molecular Engineering for Fully Textured Perovskite/Silicon Tandem Solar Cells

引用

Angewandte Chemie 2024年第36期136卷

作者： Jun Chen Shaofei Yang Dr. Long Jiang Ke Fan Zhiliang Liu Wentao Liu Dr. Wei Li Prof. Haitao Huang Prof. Hong Zhang Prof. Kai Yao Institute of Photovoltaics School of Physics and Materials Science Nanchang University Nanchang 330031 China These authors contributed equally: Jun Chen Shaofei Yang Long Jiang and Ke Fan. Suzhou Maxwell Technologies Co. Ltd. Suzhou 215200 China State Key Laboratory of Oil and Gas Equipment CNPC Tubular Goods Research Institute Xi'an Shaanxi 710077 China Department of Applied Physics The Hong Kong Polytechnic University Hung Hom Kowloon Hong Kong 999077 China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan 430070 China State Key Laboratory of Photovoltaic Science and Technology Institute of Optoelectronics Fudan University Shanghai 200433 China

Developing large-scale monolithic perovskite/silicon tandem devices based on industrial Czochralski silicon wafers will likely have to adopt double-side textured architecture, given their optical benefits and low manufacturing costs. However, the surface engineering strategies that are widely used in solution-processed perovskites to regulate the interface properties are not directly applicable to micrometric textures. Here, we devise a surface passivation strategy by dynamic spray coating (DSC) fluorinated thiophenethylammonium ligands, combining the advantages of providing conformal coverage and suppressing phase conversion on textured surfaces. From the viewpoint of molecular engineering, theoretical calculation and experimental results demonstrate that introducing trifluoromethyl group provide more effective surface passivation through strong interaction and energy alignment by forming a dipole layer. Consequently, the DSC treatment of this bifunctional molecule enables the tandem cells based on industrial silicon wafers to achieve a certified stabilized power conversion efficiency of 30.89 %. In addition, encapsulated devices display excellent operational stability by retaining over 97 % of their initial performance after 600 h continuous illumination.

关键词： perovskite/silicon tandem devices surface passivation bifunctional molecule dipole layer

来源：评论

学校读者我要写书评

暂无评论

Modulating the Bader Charge Transfer in Singlep-Block Atoms Doped Pd Metallene for Enhanced Oxygen Reduction Electrocatalysis

引用

Angewandte Chemie 2024年第44期136卷

作者： Linfeng Xie Jing Wang Kun Wang Zixu He Dr. Jiashun Liang Zijie Lin Prof. Tanyuan Wang Prof. Ruiguo Cao Prof. Feng Yang Prof. Zhao Cai Prof. Yunhui Huang Prof. Qing Li State Key Laboratory of Material Processing and Die & Mould Technology School of Materials Science and Engineering Huazhong University of Science and Technology Wuhan 430074 China Faculty of Materials Science and Chemistry China University of Geosciences (Wuhan) Wuhan 430074 China Department of Chemistry Southern University of Science and Technology Shenzhen 518055 China Hefei National Laboratory for Physical Science at Microscale Key Laboratory of Materials for Energy Conversion Chinese Academy of Science (CAS) Department of Materials Science and Engineering University of Science and Technology of China Hefei 230026 China

Metallene is considered as an emerging family of electrocatalysts due to its atomically layered structure and unique surface stress. Here we propose a strategy to modulate the Bader charge transfer (BCT) between Pd surface and oxygenated intermediates via p - d electronic interaction by introducing single-atom p -block metal (M=In, Sn, Pb, Bi) into Pd metallene nanosheets towards efficient oxygen reduction reaction (ORR). X-ray absorption and photoelectron spectroscopy suggests that doping p -block metals could facilitate electron transfer to Pd sites and thus downshift the d -band center of Pd and weaken the adsorption energy of O intermediates. Among them, the developed Bi−Pd metallene shows extraordinarily high ORR mass activity of 11.34 A mg Pd −1 and 0.86 A mg Pd −1 at 0.9 V and 0.95 V in alkaline solution, respectively, representing the best Pd-based ORR electrocatalysts ever reported. In the cathode of a Zinc-air battery, Bi−Pd metallene could achieve an open-circuit voltage of 1.546 V and keep stable for 760 h at 10 mA cm −2 . Theoretical calculations suggest that the BCT between Pd surface and *OO intermediates greatly affects the bond length between them ( d Pd-*OO ) and Bi doping could appropriately reduce the amount of BCT and stretch the d Pd-*OO, thus enhancing the ORR activity.

关键词： Pd metallene p-d orbital hybridization single-atom site oxygen reduction reaction Bader charge zinc-air battery

来源：评论

学校读者我要写书评

暂无评论

Bioinspired Engineering of Gradient and Hierarchical Architecture into Pressure Sensors Toward High Sensitivity within Ultra-Broad Working Range

SSRN

引用

SSRN 2022年

作者： Song, Shiqiang Zhang, Cuifen Li, Weizhen Wang, Jincheng Rao, Pinhua Wang, Jin Li, Tiantian Zhang, Yong College of Chemistry and Chemical Engineering Shanghai University of Engineering Science Shanghai201620 China The National Engineering Research Center of Novel Equipment for Polymer Processing School of Mechanical & Automotive Engineering South China University of Technology Guangzhou510641 China State Key Laboratory for Metal Matrix Composite Materials School of Chemistry and Chemical Engineering Shanghai Jiao Tong University Shanghai200240 China

Introducing hierarchical microstructure on the soft material surface can effectively improve the sensitivity of the pressure sensor, however, the high sensitivity generates only at a low pressure range because of the limited compressibility of the microstructure and the incompressibility of the soft matrix. Herein, we first report a facile strategy of bioinspired engineering of hierarchical and gradient structures that can simultaneously improve the sensitivity and broaden the pressure working range. Such hierarchical and gradient structures feature hemispherical arrays and gradient pores that allow the structural deformation from tiny pressure to high pressure, significantly boosting the sensitivity over the full pressure range. By integrating these unique structures on one sensor, the sensor exhibits an ultrahigh sensitivity over a broad pressure regime (i.e., from 102.3 kPa−1 within 0~1.9 kPa to 0.34 kPa-1 within 169.6~400 kPa), a fast response time (35 ms), low limit detection (0.4 Pa) and excellent stability (>5000). The facile strategy and structure design achieve high sensitivity and broad pressure working range for an advanced pressure sensor, endowing it with wide applications, including pressure/weight monitoring, real-time human pulse wave measurements, joint motion detection and human-computer interaction. (Image Present) © 2022, The Authors. All rights reserved.

关键词： Pressure sensors

来源：评论

学校读者我要写书评

暂无评论

Atomic structure and properties of a perovskite/spinel (111) interface

引用

Physical Review B 2020年第16期102卷 165302-165302页

作者： Yuanmin Zhu Linhan Liu Guoping Cao Wandong Xing Ying-Hao Chu Jing Zhu Rong Yu National Center for Electron Microscopy in Beijing Key Laboratory of Advanced Materials (MOE) The State Key Laboratory of New Ceramics and Fine Processing School of Materials Science and Engineering Tsinghua University Beijing 100084 People's Republic of China Department of Materials Science and Engineering National Chiao Tung University Hsinchu 30010 Taiwan Republic of China

Perovskite and spinel structures are widely found in ferroelectric and magnetic oxides, respectively, making their combination important for multiferroic composites. In this study, the (111) interface between perovskite-type BiFeO3 and spinel-type NiFe2O4, has been systematically investigated at the atomic scale combining aberration-corrected scanning transmission electron microscopy and first-principles calculations. The atomic terminations at the interface were determined to be the BiO3 layer on the BiFeO3 side and the tetrahedral Fe layer on the NiFe2O4 side. The lattice mismatch between BiFeO3 and NiFe2O4 is primarily accommodated by the first and second BiO3 layers inside BiFeO3, indicating a stand-off of misfit dislocations in BiFeO3. A metallic interface is formed between the two insulating phases, with the BiO3 and tetrahedral Fe layer coupled antiferromagnetically across the interface. The magnetic moment in NiFe2O4 and the ferroelectric polarization in BiFeO3 drop slightly at the interface and return to the bulk values within two atomic layers from the interface.

关键词： Interfaces Perovskites Spinels Transition metal oxides First-principles calculations Scanning transmission electron microscopy

来源：评论

学校读者我要写书评

暂无评论

Effect of aluminum phase in the formation process of thaumasite

引用

materials Research Innovations 2019年第6期23卷 369-374页

作者： Kai, Ke Yingbin, Wang Hubei Provincial Key Laboratory of Green Materials for Light Industry Hubei University of Technology Wuhan China Collaborative Innovation Center of Green Light-weight Materials and Processing Hubei University of Technology Wuhan China School of Materials and Chemical Engineering Hubei University of Technology Wuhan China The School of Civil and Architectural Engineering Hubei University of Technology Wuhan China State Key Laboratory of Silicate Materials for Architectures Wuhan University of Technology Wuhan China

Research has shown the presence of aluminum phases can accelerate thaumasite formation. This study examines the thaumasite-ettringite solid solutions to investigate the effect of Al phases on the types and morphologies of products, the role of Al phases in the thaumasite formation and attempt to find a new analysis method. The solid solutions were synthesized at 5°C, with Al/Si ratios from 1:9 to 9:1. X-ray diffraction (XRD), scanning electron microscope-energy dispersive spectrometer (SEM+ EDS), X-ray photoelectron spectroscopy (XPS) and nuclear magnetic resonance (NMR) analyses were performed on the 16-week products. Results indicate: two types of solid solutions were formed in all specimens, and their morphologies were related to their elemental compositions and types;the Al phases in ettringites can be replaced by Si to form thaumasite-ettringite solid solutions. © 2018, © 2018 Informa UK Limited, trading as Taylor & Francis Group.

关键词： Aluminum

来源：评论

学校读者我要写书评

暂无评论

DeePMD-kit v3: A Multiple-Backend Framework for Machine Learning Potentials

arXiv

引用

arXiv 2025年

作者： Zeng, Jinzhe Zhang, Duo Peng, Anyang Zhang, Xiangyu He, Sensen Wang, Yan Liu, Xinzijian Bi, Hangrui Li, Yifan Cai, Chun Zhang, Chengqian Du, Yiming Zhu, Jia-Xin Mo, Pinghui Huang, Zhengtao Zeng, Qiyu Shi, Shaochen Qin, Xuejian Yu, Zhaoxi Luo, Chenxing Ding, Ye Liu, Yun-Pei Shi, Ruosong Wang, Zhenyu Bore, Sigbjørn Løland Chang, Junhan Deng, Zhe Ding, Zhaohan Han, Siyuan Jiang, Wanrun Ke, Guolin Liu, Zhaoqing Lu, Denghui Muraoka, Koki Oliaei, Hananeh Singh, Anurag Kumar Que, Haohui Xu, Weihong Xu, Zhangmancang Zhuang, Yong-Bin Dai, Jiayu Giese, Timothy J. Jia, Weile Xu, Ben York, Darrin M. Zhang, Linfeng Wang, Han School of Artificial Intelligence and Data Science Unversity of Science and Technology of China Hefei China AI for Science Institute Beijing100080 China DP Technology Beijing100080 China Academy for Advanced Interdisciplinary Studies Peking University Beijing100871 China State Key Lab of Processors Institute of Computing Technology Chinese Academy of Sciences Beijing100871 China University of Chinese Academy of Sciences Beijing China Baidu Inc. Beijing China Department of Computer Science University of Toronto TorontoON Canada Department of Chemistry Princeton University PrincetonNJ08540 United States University of Chinese Academy of Sciences Beijing100871 China State Key Laboratory of Physical Chemistry of Solid Surfaces iChEM College of Chemistry and Chemical Engineering Xiamen University Xiamen361005 China College of Integrated Circuits Hunan University Changsha410082 China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Center for Smart Materials and Device Integration School of Material Science and Engineering Wuhan University of Technology Wuhan430070 China College of Science National University of Defense Technology Changsha410073 China Hunan Key Laboratory of Extreme Matter and Applications National University of Defense Technology Changsha410073 China ByteDance Research Beijing100098 China Ningbo Institute of Materials Technology and Engineering Chinese Academy of Sciences Ningbo315201 China College of Materials Science and Opto-Electronic Technology University of Chinese Academy of Sciences Beijing100049 China Key Laboratory of Theoretical and Computational Photochemistry of Ministry of Education College of Chemistry Beijing Normal University Beijing100875 China Department of Geosciences Princeton University PrincetonNJ08544 United States Department of Applied Physics and Applied Mathematics Columbia University New YorkNY10027 United States IKKEM Fujian Xiamen361005 China Graduate

In recent years, machine learning potentials (MLPs) have become indispensable tools in physics, chemistry, and materials science, driving the development of software packages for molecular dynamics (MD) simulations and related applications. These packages, typically built on specific machine learning frameworks such as TensorFlow, PyTorch, or JAX, face integration challenges when advanced applications demand communication across different frameworks. The previous TensorFlow-based implementation of DeePMD-kit exemplified these limitations. In this work, we introduce DeePMD-kit version 3, a significant update featuring a multi-backend framework that supports TensorFlow, PyTorch, JAX, and PaddlePaddle backends, and demonstrate the versatility of this architecture through the integration of other MLPs packages and of Differentiable Molecular Force Field. This architecture allows seamless backend switching with minimal modifications, enabling users and developers to integrate DeePMD-kit with other packages using different machine learning frameworks. This innovation facilitates the development of more complex and interoperable workflows, paving the way for broader applications of MLPs in scientific research. Copyright © 2025, The Authors. All rights reserved.

关键词： Molecular dynamics

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

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

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：