Results 21 to 30 of about 13,340 (119)

Enhanced Oxygen Reduction Reaction Performance of Fe‐N4 Single‐Atom Catalysts Through Fe3C Coupling

Rare Metals, Volume 45, Issue 9, September 2026.
ABSTRACT Understanding the electronic factors contributing to the high oxygen reduction reaction (ORR) activity of Fe‐N4 sites remains a significant challenge due to the localized Fe 3d orbitals and their sensitivity to the coordination environment.
Shichang Cai, Yapeng Cheng, Chaoqi Zhang, Qian Xue, Jiachen Ma, Jiawei Zhu, Fanglin Wu, Siqi Sun, Zihan Meng, Ding Chen, Qing Wang, Yagang Feng, Meng Liu, Hanlu Zhang, Xiaoxiao Li, Di Lu, Naying Zhang, Chaoqun Chen, Haining Zhang, Andreu Cabot   +19 more
wiley   +1 more source

A Green Strategy for the Ultrafast Synthesis of Functional Hydrogels Toward Intelligent Human–Machine Interfaces

Rare Metals, Volume 45, Issue 9, September 2026.
ABSTRACT With the rapid development of flexible electronics, there is an increasing demand for hydrogel‐based sensors with rapid fabrication, robust mechanical performance, and stable sensing behavior. Herein, a green and ultrafast self‐catalytic strategy is developed to fabricate a multifunctional hydrogel based on tannic acid‐coated cellulose ...
Jin Qian, Shuzhen Ni, Yongchao Zhang, Xiaoqian Chen, Tairan Pang, Ting Xu, Chuanling Si   +6 more
wiley   +1 more source

Multifunctional Hydrogels Based on MXene@NiFe2O4 Conductive‐Magnetic Composites for Electromagnetic Shielding, Thermal Insulation, and Wearable Sensors

Rare Metals, Volume 45, Issue 9, September 2026.
ABSTRACT Traditional electromagnetic shielding materials mainly focus on attenuating electromagnetic interference (EMI), but they still fail to meet the growing demands of modern flexible electronic devices and Internet‐related information technologies.
Zhi Lei, Maoxia Lu, Bin Yang, Dongju Liu, Daohai Zhang, Chang Li, Wei Gong   +6 more
wiley   +1 more source

二次电流为1A的高压电流互感器

Gaoya dianqi, 1996
一、前言 我国的电力系统一直采用二次电流为5A的电流互感器,和5A的测量、保护用仪表以及继电器。但从近几年引进工程中的成套配电装置来看,采用二次电流为1A的电流互感器越来越多。如南京扬子石化公司从日本引进的低压聚乙烯装置和聚丙烯装置变电所,6kV及380V电流互感器几乎都是二次电流为1A的。南京化学工业公司年产5万吨已内酰胺装置引进设备中的奥地利产电流互感器全为1A的。 目前世界上许多国家在电流互感器技术标准中明确规定出额定二次电流为1A及5A。如西德国家标准中规定1A的电流互感器为标准型互感器 ...
李和, 李天泰, 常修平
doaj  

Toward a New Generation of AI‐Enabled Wearable Sensors

Rare Metals, Volume 45, Issue 9, September 2026.
ABSTRACT Wearable sensors have emerged as important platforms for noninvasive, real‐time, and continuous monitoring of physiological information, with growing applications in personalized healthcare, human‐machine interfaces (HMIs), and robotic empowerment.
Tianqi Yang, Hang Zhu, Zhihui Pan, Jiawei Yang, Yi Liu, Wenqing Yan, Hossam Haick, Yan Wang   +7 more
wiley   +1 more source

架空配电线路感应雷过电压仿真分析

Dianci bileiqi, 2012
架空配电线路绝缘水平较低,因此雷电感应过电压引起的雷击跳闸率很高。为了分析配电线路感应雷过电压的特性,介绍了感应过电压的计算方法,使用二阶时域有限差分法（FDTD）计算感应过电压,以实际线路为例,分析了线路结构、雷电流参数、大地电导率及负载对感应过电压的影响。结果表明,线路高度的增加会使感应过电压增大;雷电参数对感应过电压计算结果影响较大;当大地电导率小于,其对感应过电压的影响不可忽略,计算分析时应予以考虑;需要对短时呈容性的设备做好防雷保护工作。
刘金亮, 杨彩梅, 林国华
doaj  

Synergistic Effect of Hydrophilic Surface and Nano‐Ag2O in TiO2‐Based Composites Coating on Antibacterial and Osteogenic Properties of Low Modulus Ti‐Mo‐Ag Alloy

Rare Metals, Volume 45, Issue 9, September 2026.
ABSTRACT Ti‐15Mo‐2.5Ag alloy exhibited a low modulus and strong antibacterial ability but poor bioactivity. To resolve this problem, sandblasting and anodization were used to create a hydrophilic and nano‐Ag2O‐containing TiO2 coating. Subsequently, the microstructure and physicochemical properties were investigated by scanning electron microscopy, X ...
Yanchun Xie, Junfan Chen, Ming Zhang, Zixin Lin, Hailong Yu, Anwu Xuan, Yi Lian, Lei Yang, Yong Wang, Yuxin Liu, Erlin Zhang, Bing Bai   +11 more
wiley   +1 more source

MXene‐Boosted Nickel‐Based Metal‐Organic Framework Composite With Enhanced Conductivity and Catalytic Activity for Highly Sensitive Glucose Detection

Rare Metals, Volume 45, Issue 8, August 2026.
ABSTRACT The design and synthesis of highly efficient electrochemical sensors are pivotal to electrochemical conversion technologies. This study successfully synthesized a composite material comprising two‐dimensional (2D) conductive MXene and nickel‐based metal–organic framework (Ni‐MOF) by stirring at room temperature.
Hai‐Xia Wu, Yuan Li, Ling‐Ling Chen, Jin‐Liang Hu, Fang Wang, Song‐Tao Zhang, Kai‐Lu Guo, Feng Yu, Huan Pang   +8 more
wiley   +1 more source

储能电容器组保护电感结构与保护方法的研究

Gaoya dianqi, 2012
在脉冲功率系统中,储能电容器的保护至关重要,采用保护电感是目前主要使用的方法之一。笔者对保护电感在使用中出现的炸裂问题进行了研究,结果表明,电容器短路和电感本身的结构都可能导致电感损坏,通过对电感损坏的2种原因进行分析讨论,得出了在电路中加装避雷器和改变电感引线结构2种解决方式,并对新的方案进行了试验和仿真,结果表明,新的电感运行状态良好。
彭波, 林福昌, 黄福勇, 王成, 王峰, 郭锐, 韩永霞   +6 more
doaj  

Rational Design of Bimetallic MOF‐Derived Cu/Co@N‐C Nanocubes for Ultrasensitive Electrochemical Nitrite Detection

Rare Metals, Volume 45, Issue 8, August 2026.
ABSTRACT A facile coprecipitation‐pyrolysis strategy was employed to fabricate Cu/Co nanoparticles (NPs) embedded in nitrogen‐doped carbon matrices (Cu/Co@N‐C) through the carbonization of CuCo‐MOF precursors. Moreover, monometallic counterparts of Cu@N‐C and Co@N‐C were also prepared via carbonization of bimetallic CuZn‐MOF and CoZn‐MOF, respectively.
Weinan Yao, Wenzhuo Sun, Mengjiao Wu, Nana Li, Wenting Li, Xiaotian Guo, Bin He, Huan Pang   +7 more
wiley   +1 more source