Results 21 to 30 of about 88,587 (169)
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
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
Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT Dielectric polymers commonly suffer from severe performance degradation above 150°C, hindering advanced power systems. Herein, we demonstrate a polyetherimide (PEI) nanocomposite that overcomes this by mimicking the gradient architecture of nacre and bamboo, incorporating a continuous vertical gradient of fluorinated boron nitride nanosheets ...
Jian Wang +8 more
wiley +1 more source
Dianci bileiqi, 2017 飘弧和弧道在湿污表面沿泄漏距离的延伸是局部电弧演变的主要环节。利用高速摄像机观测了不同极性直流局部电弧在湿污表面的演变过程,并从气体放电理论分析和解释了出现上述现象的原因。观测结果表明,负极性电弧比正极性电弧飘弧更严重,且负极性电弧延伸速率高于正极性电弧;电弧延伸过程中,正极性电弧更容易出现分叉和并列弧道的现象,负极性电弧更易出现尖状的头部。负极性电弧更易飘弧是由于电弧与污层之间的流注更易发展,使负极性电弧和污层之间更易保持良好的导电通道,所以飘弧更易维持,也更严重;正极性电弧端部紧贴污层表面 ...
金巧芳, 李亚伟
doaj
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 +12 more
wiley +1 more source
Gaoya dianqi, 1998 针对电磁轨道炮炮膛导电轨道电极表面受高密度电弧烧蚀的现象,计算了电弧中带电粒子轰击电极表面时,传输给电极表面的能流密度。结果表明:电弧中带电粒子轰击电极表面时,将携带的热运动动能、鞘层电位差势能、离子复合能和冷凝热传输给弧根处的电极表面区域,是引起电极表面烧蚀、产生宏观熔坑的主要能量来源。
陈小川
doaj
Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT Aqueous zinc‐ion batteries (AZIBs) have attracted increasing attention in energy storage owing to their high energy density, low redox potential, and cost‐effectiveness. Nevertheless, uncontrolled dendrite accumulation, gas generation, and severe side‐reaction problems hinder the cycling lifespan, which prevents their commercial applications ...
Xiangzhong Kong +8 more
wiley +1 more source
, 2007 一种质子交换膜燃料电池电极和膜电极的制法：A)制备催化剂浆液：将聚合物电解质溶液、去离子水以及第一主族碱金属氢氧化物或其盐类化合物溶液混合均匀；将PtRu黑等阳极电催化剂加入到上述溶液中，混合均匀，得到阳极催化剂浆液；将Pt黑等阴极电催化剂加入到上述溶液中，混合均匀，得到阴极催化剂浆液；B)制备燃料电池的电极：将催化剂浆液分散/沉积到导电基底、导质子基底、或非导电基底薄膜上。本发明通过在催化剂浆液中加入第一主族碱金属的氢氧化物或其盐类化合物溶液，可有效避免聚合物电解质磺酸根基团之间静电作用引起的团聚 ...
孙公权 +7 more
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