Results 1 to 10 of about 3,790 (119)
Zhejiang Daxue xuebao. Lixue ban, 2007 采用溶胶凝胶法合成了尖晶石型LiMn2O4正极材料，选取钴、铈和镁作为掺杂元素，考察了钴、铈和镁的掺杂对LiMn2O4正极材料的结构和电化学性能的影响.并运用XRD、IR、BET等方法对所合成的材料进行了表征.实验结果表明，掺杂一定量钴、铈和镁后的LiMn2O4正极材料循环寿命优于未经掺杂的LiMn2O4正极材料，循环50次后，3种掺杂后所得的电池材料的容量保持率均达95%以上.其中以掺杂钴的LiCo0.2Mn1.8O4正极材料循环性能最好，首次充放电容量达到105.6 mAh/g，50次循环后 ...
CHENMin(陈敏) +2 more
doaj +1 more source
Gongye shui chuli, 2022 电吸附除盐技术是一种正在发展的新型的除盐技术，其中电极材料是制约电吸附性能的关键，也是电吸附技术研究的热点。介绍了电吸附技术原理和4类碳基电极材料的研究进展，对比分析了4类电极材料的优缺点，指出单一电极材料的吸附容量小，不能满足其工业要求，在低成本的条件下对电极材料进行改性处理是今后电吸附电极材料的主要研究方向。
董旭明 +4 more
doaj
Gongye shui chuli, 2020 微生物燃料电池能在去除污染物的同时产生电能，但其功率密度差、电子转移效率低。其中阳极是影响微生物燃料电池的一个关键部分，但通常所用的阳极材料对微生物吸附不充分，而且电子传递速率慢，限制了微生物燃料电池的电流密度。因此对阳极改性和开发新型阳极材料成为了研究的重要方向。综述了关于阳极改性和新型阳极材料开发的研究进展，并对阳极材料在未来的研究方向做出展望。
任玉莹, 刘玉香
doaj
Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT With high theoretical capacity and low cost, bismuth sulfide (Bi2S3) demonstrates considerable potential as an anode for sodium/potassium‐ion batteries (SIBs/PIBs). Unfortunately, significant volume variation, low electrical conductivity, and dissolution of polysulfides drastically weaken their intrinsic merits.
Fuyu Xiao +11 more
wiley +1 more source
Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT Electromagnetic wave absorption materials require high dielectric loss and excellent impedance matching performance. However, current conventional biomass‐derived electromagnetic wave absorption materials are still limited by low electrical conductivity and a single structure.
Yue Zhang +9 more
wiley +1 more source
Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT NiTi shape memory alloys (SMAs) show excellent performance in vibration damping and corrosion resistance. However, due to low hardness and lack of self‐lubrication, they suffer severe friction and wear during service. Although various strategies including doping and heterostructure design have been proposed, the effects are unsatisfactory.
Huwen Ma +13 more
wiley +1 more source
Gongye shui chuli, 2021 近些年来活化过硫酸盐在处理水体有机污染物方面得到广泛应用。电化学活化过硫酸盐是一种新型、高效、环境友好且具有良好前景的活化方式。该活化方式能够使目标污染物得到有效降解，而且对pH的适应范围很广。电极材料是影响电化学活化最重要的因素之一。综述了金属电极、金属氧化物电极和碳材料电极在电活化过硫酸盐降解水中有机污染物方面的应用，并讨论了不同电极的活化机理。最后总结了不同材料电极在应用中存在的一些问题，并提出了未来的发展方向。
陈永盛 +5 more
doaj
Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT Semiconductor photocatalysis represents a pivotal frontier in the quest for sustainable energy and environmental remediation. Among the diverse catalytic materials, Bismuth Oxychloride (BiOCl) has emerged as a particularly promising candidate due to its unique layered structure, featuring [Bi2O2]2+ layers intertwined with halogen ions, which ...
Liu Han +5 more
wiley +1 more source
Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT The development of lightweight, high‐attenuation, and broadband carbon‐based electromagnetic wave absorbers is hindered by the intrinsic trade‐off between impedance matching and dielectric dissipation. Herein, we report a facile and scalable synthesis of N‐doped lignin‐derived interconnected porous carbon (Nx‐LIPC) via hydrogen‐bond self ...
Bin‐Peng Zhang +7 more
wiley +1 more source
Gongye shui chuli, 2019 电化学技术广泛用于工业废水的处理。电极材料是影响电化学处理效率的关键因素。因此目前的研究主要集中在对电极材料的开发制备与改性方面。主要从电絮凝、电氧化、电还原、电吸附作用机理来对电极材料进行分类，并介绍相关研究进展。电氧化阳极材料可分为基于吸附态和自由态·OH氧化原理的两类材料；而电还原阴极材料可分为基于直接还原和间接还原的两类材料。最后，对电极材料在水处理方面的发展方向进行了展望。
张思韬 +3 more
doaj