Results 21 to 30 of about 4,150,689 (166)

A Topology‐Guided Design Strategy for Polymerized Naphthoquinone Cathodes in Rechargeable Aluminium‐Ion Batteries

open access: yesRare Metals, Volume 45, Issue 5, May 2026.
ABSTRACT Rechargeable aluminium‐ion batteries (RAIBs) are promising candidates for sustainable energy storage owing to their low cost, safety, and resource abundance. However, the lack of durable cathode materials restricts their development. Here, we propose a topology‐guided design strategy by synthesizing three thioether‐bridged naphthoquinone ...
Jia Qiao   +8 more
wiley   +1 more source

电化学法从给水中除氧

open access: yesGongye shui chuli, 1988
本文介绍了一种可用于工业锅炉和热水锅炉给水系统的电化学除氧技术,内容有电化学除氧的机理,pH值、温度、流速、电流密度和铝剂量对给水除氧的影响。还介绍了二种不同结构的电化学除氧器。
张寿恺
doaj  

含苯胺废水处理技术研究进展

open access: yesGongye shui chuli, 2023
针对苯胺废水,首先介绍了其产生原因、危害及处理方法,重点介绍了物理法、化学法和生物法,包括各种方法的工作原理和技术特点。物理法主要包括吸附法、萃取法、膜分离法等,一般用于预处理阶段;化学法包括湿式氧化法、化学氧化法、电催化氧化法、光催化氧化法、超临界水氧化法等,通过传质与化学反应,将水中的有机污染物分离或分解为无害物质;生物法适合处理低浓度苯胺废水,对废水的pH、物质组成、温度等都有比较严格的要求。其次,介绍了几种用于苯胺废水处理的新型方法以及联用方法,如Fenton氧化法、电子束辐照降解技术等。最后 ...
冯尚华, 蒋波, 张建平, 赵仕华
doaj  

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

open access: yesRare 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   +10 more
wiley   +1 more source

FeCoNiCuPt High‐Entropy Alloy as a Robust Catalytic Shield Against Polysulfide Shuttling in Li–S Batteries

open access: yesRare Metals, Volume 45, Issue 5, May 2026.
ABSTRACT Efficient catalytic materials are vital for addressing the polysulfide shuttle and sluggish redox kinetics in lithium–sulfur batteries. Herein, we report a facile sugar‐blowing method to prepare porous carbon‐supported FeCoNiCuPt high‐entropy alloy (HEA) nanospheres with abundant lattice defects in a single crystalline phase.
Guixiang Zhong   +8 more
wiley   +1 more source

高浓度染料中间体废水湿式电化学处理研究

open access: yesGongye shui chuli, 2006
该湿式电化学氧化技术是湿式空气氧化的改进方法。采用湿式电化学氧化法对染料中间体生产废水进行处理,考察了pH、电流密度、温度、反应时间、过氧化氢量等因素对处理效果的影响。实验结果表明:该法能有效降解废水中有机物质,且电能消耗低,是一种适合于含盐废水处理的新方法。
刘占孟, 聂发辉, 李敬
doaj  

Hierarchical Structured TiO2/Boron‐Doped Diamond for Efficient Photo‐Electrocatalytic Degradation

open access: yesRare Metals, Volume 45, Issue 5, May 2026.
ABSTRACT The discharge of refractory organic dye wastewater poses a significant threat to the ecological environment, necessitating the development of efficient treatment technologies. Herein, a uniform TiO2 array (TiO2‐AR) electrode is fabricated using a combination of magnetron sputtering and a mask plate process with a boron‐doped diamond (BDD ...
Haiming Sun   +10 more
wiley   +1 more source

石墨基二氧化铅阳极室温电生三价钴的研究

open access: yes四川大学学报. 自然科学版, 2005
以库仑分析法为研究手段,考察了在室温下经电化学活化的石墨基二氧化铅阳极电生三价钴的条件及其应用.石墨基二氧化铅电极的电化学活化方法是在0.1mol/L硫酸钠溶液中,在搅拌下于-1.0V还原30s,再于+3.0V氧化5min,反复此过程数次即可.在0.20mol/L硫酸钴0.15mol/L硫酸铁铵5.5mol/L硫酸体系中,氧化电流为20mA、还原电流为40mA时,活化后的电极电生三价钴的库仑效率可达97%以上,三价钴在溶液中的稳定时间可达30min.将电生的三价钴作为氧化剂 ...
徐泽民, 李波
doaj  

Synergistic Engineering of Amorphous Cathode and Hybrid Electrolyte Toward Stable High‐Voltage Aqueous Zn‐Ion Batteries

open access: yesRare Metals, Volume 45, Issue 5, May 2026.
ABSTRACT The development of high‐voltage aqueous zinc‐ion batteries (AZIBs) is primarily hindered by the lack of suitable cathode materials and electrolytes that can work in broad voltage windows. Herein, we propose a synergistic strategy that concurrently addresses these challenges through the integration of an amorphous vanadium oxyphosphate/graphene
Xianyu Liu   +7 more
wiley   +1 more source

金刚石膜电极电化学处理污染物的研究

open access: yesGongye shui chuli, 2005
采用人工合成的金刚石膜电极进行电化学氧化降解处理污染物的探索工作,已成为环境电化学领域中最为关注的国际性研究热点之一。从电催化氧化降解技术处理污染物的研究现状及其存在的问题出发,分析了适用于污染物降解处理的高效电极材料应具有的表面特性及其电化学性质。在综述了金刚石膜电化学研究以及应用于污染物处理的工作基础上,结合近期相关的研究结果,论述了金刚石膜电极的电化学特性以及对污染物氧化降解的应用和降解机理。金刚石膜电极将是未来环保处理中非常适用、高效、稳定的电极材料。
赵国华   +4 more
doaj  

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