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一种水冷空腔电弧阴极 [PDF]

, 1983
大电流电子源是高功率氩离子激光器、离子镀膜装置、真空冶炼设备等的关键部件。目前多数是采用热阴极,现在介绍一种水冷杯状空腔电弧阴极。 设计空腔电弧阴极主要考虑:散热、绝缘、防止烧蚀、消除污染、限制弧斑运动、稳定电弧、启动电弧等因素。 本文设计的阴极如图1所示。图中1是水冷杯状金属空腔,其内壁面是阴极的发射面。在阴极出口孔内,装有自加热衬套2,用它来把阴极斑约束在空腔内 ...
王殿儒, 张福, 曹尔研, 田大准
core   +2 more sources

Competitive Anion Coordination Modulates Anode Interfacial Chemistry for Wide‐Temperature Sodium Batteries

Rare Metals, Volume 45, Issue 10, October 2026.
ABSTRACT Sodium‐ion batteries (SIBs) offer a promising, cost‐effective alternative for large‐scale energy storage due to the abundance of sodium. However, their practical deployment is challenged by sluggish interfacial kinetics and unstable interphase formation, which severely limit performance across wide temperature ranges. Here, we demonstrate that
Mingxing Zhang, Tengfei Jiang, Fuang Liu, Huang Zhang, Saisai Qiu, Jian Wang, Hongxu Qu, Jingxuan Wang, Sailei Shao, Minghua Chen, Huihua Li   +10 more
wiley   +1 more source

Revealing the Roles of Electrolyte Concentration on Transition Metal Dissolution and Reaction Pathway of Anion Adsorption Pseudocapacitance

Rare Metals, Volume 45, Issue 8, August 2026.
ABSTRACT Conventional lithium‐ion battery cathodes predominantly rely on reversible lithium intercalation in bulk, which inevitably induces phase transitions, transition metal migration, and voltage decay. Electrolytic anion adsorption pseudocapacitance provides a chance for bypassing these issues via a surface‐dominated reaction, especially in ...
Hongjin Ren, Xing Cheng, Yuan Wang, Jiahao Jiao, Tianwei Cui, Huiying Zhang, Yilong Niu, Yue Zhou, Xiayan Wang, Biao Li, Li An   +10 more
wiley   +1 more source

Divergent Electrochemical Behaviors of O2 and O3 Phases in Li‐Rich Layered Oxides

Rare Metals, Volume 45, Issue 8, August 2026.
ABSTRACT Lithium‐ion batteries (LIBs) have dominated the landscape of electrochemical energy storage for decades. The growing market demands for higher energy densities are pushing against the limitations of conventional cathode materials. Li‐rich layered oxides (LLOs) present a promising path forward by harnessing both cationic and anionic redox ...
Juncheng Huang, Yijia Fu, Jiming Peng, Xiaoqiong Li, Gemeng Liang, Qichang Pan, Fenghua Zheng, Qingyu Li, Hongqiang Wang, Sijiang Hu   +9 more
wiley   +1 more source

Ce Modification Induces Interfacial Electron Reconstruction to Stabilize Co(OH)2 Framework and Enhance Hydrogen Evolution Reaction Kinetics

Rare Metals, Volume 45, Issue 8, August 2026.
ABSTRACT A central challenge in alkaline water electrolysis is the development of hydrogen evolution reaction (HER) electrocatalysts that simultaneously maintain high activity and structural stability at industrial current densities. Hydroxide‐based supports that facilitate water dissociation are particularly susceptible to over‐reduction and ...
Feng Chen, Jing Jin, Zikang Zhao, Qian Liu, Tianxiao Xie, Yubin Yuan, Hong Pan, Yuanzhe Wang, Junshuang Zhou, Faming Gao   +9 more
wiley   +1 more source

Interstitial Pt–Pd Bimetallic Sites Enable Cooperative Intermediate Regulation for Methanol‐Assisted Hydrogen Generation

Rare Metals, Volume 45, Issue 7, July 2026.
ABSTRACT Methanol‐assisted hydrogen generation reduces energy consumption while maintaining high hydrogen productivity. However, constructing bifunctional catalysts with high hydrogen evolution reaction (HER) activity, CO tolerance, and long‐term stability remains challenging.
Xiaoyu Zheng, Minghui Li, Xiaotao Zhang, Ziqi Wang, Lin Zhang, Yao Zhou   +5 more
wiley   +1 more source

Prenatal diagnosis of cardiac rhabdomyoma: implications for predicting tuberous sclerosis complex and guiding perinatal management

Ultrasound in Obstetrics &Gynecology, Volume 68, Issue 1, Page 88-98, July 2026.
ABSTRACT Objective To identify prenatal predictors of tuberous sclerosis complex (TSC) in fetuses with one or more cardiac rhabdomyomas (CR), evaluate an integrated multimodal diagnostic workflow using fetal magnetic resonance imaging (MRI) and trio whole‐exome sequencing (trio‐WES) and characterize perinatal outcomes.
X. Cai, J. Liu, W. Zheng, Y. Jiao, Y. Lou, M. Deng, W. Zhao, K. Yan, L. Sun   +8 more
wiley   +1 more source

Synergizing Multi‐Chemisorption Sites and Micropore Confinement in Porous Carbon for High‐Performance Zinc‐Ion Hybrid Capacitors

Rare Metals, Volume 45, Issue 6, June 2026.
ABSTRACT Aqueous zinc‐ion hybrid capacitors (ZICs) bridge the gap between high‐energy batteries and high‐power supercapacitors, yet their performance is fundamentally bottlenecked by the micropore confinement effect in carbon cathodes, which restricts hydrated Zn2+ transport and active site utilization.
Qian Li, Ting Han, Zhengkai Guo, Xiaoyu Feng, Xiaoyi Pan, Qianzhi Gou, Bingye Song, Dan Zhang, Jianxin Wang, Ziyi Wang, Sida Zhang, Xianzhong Yang, Le Li   +12 more
wiley   +1 more source

A Dual Co‐Reactant Accelerator Based On Nanoreactor‐Encapsulated CeO2 Nanozymes to Drive Potentiated Luminol Cathodic Electrochemiluminescence for Ultrasensitive Immunoassay

Rare Metals, Volume 45, Issue 5, May 2026.
ABSTRACT The precise quantification of cytokines is crucial for monitoring disease onset and progression. Herein, we developed a synergistic signal amplification approach by utilizing nanoreactor‐encapsulated CeO2 nanozymes, which were in situ electrodeposited within the mesoporous silica nanochannel film (SNF) grown on indium tin oxide (ITO ...
Yu Cui, Liuyi Huang, Jingwen Zhao, Jiyang Liu, Wei Hu   +4 more
wiley   +1 more source

Defect‐Regulated Electronic and Lattice Evolution in Na4VMn(PO4)3 Toward High‐Performance Sodium Storage

Rare Metals, Volume 45, Issue 5, May 2026.
ABSTRACT NASICON‐type Na4VMn(PO4)3 (NVMP) is a promising high‐capacity cathode for sodium‐ion batteries, yet its practical deployment is hindered by Mn3+‐driven lattice distortion, persistent oxygen vacancy defects, and sluggish Na+ transport, collectively resulting in accelerated performance degradation.
Deyi Zhang, Fan Li, Lin Zhou, Weiliang Xu, Shuoshuo Cheng, Xiaohui Rong, Weihe Kong, Shiyu Li, Quan Zhou, Junmei Zhao, Ying Bai   +10 more
wiley   +1 more source