Results 41 to 50 of about 1,512,380 (172)
Dianci bileiqi, 1994 不同烧成气氛条件下电瓷制品的烧成实验结果表明：含铁量较高、含钛量较低的电瓷制品，还原气氛下烧成制品的机械性能与电性能均优于氧化气氛下烧成制品的机械性能与电性能，而且在一定的还原烧成气氛浓度范围内，还原气氛浓度越高，制品的性能越好。研究结果还表明：适当提高电瓷制品氧化气氛烧成温度对制品的性能有利，但提高烧成温度而在氧化气氛下烧成制品的性能仍比不上较高还原气氛浓度下烧成制品的性能。
宛良德, 刘振群
doaj
Rare Metals, Volume 45, Issue 10, October 2026.ABSTRACT Regulating oxygen vacancies (Ov) in SnO2 to facilitate high‐efficiency carbon dioxide electroreduction reduction reaction (CO2RR) is still a significant challenge. Therefore, a strategy based on Ag‐induced interfacial electron transfer was proposed to modulate Ov in SnO2 for CO2 electroreduction. The prepared Ag/SnO2 with an optimal Ov content
Haoyu Qi +7 more
wiley +1 more source
, 2012 膜电极（MEA）是聚合物电解质膜燃料电池的核心部件，其结构直接影响电池的性能、稳定性及使用寿命。本论文针对阳极和阴极电化学反应特性，对MEA结构进行了设计与优化。主要研究结果如下： 采用EG/H2O，EtOH/H2O和EtOH/H2O/NaOH为分散剂制备了Nafion®聚合物溶液及催化剂层，研究了溶剂与抗衡离子对浆液中Nafion®聚合物分散度及其制备的阴极催化层的性能和稳定性的影响。结果表明，增大Nafion®聚合物的分散度有助于提高所制备的氧气阴极的放电性能，而减小Nafion ...
朱珊
core
Rare Metals, Volume 45, Issue 10, October 2026.ABSTRACT Biomass‐based hydrogels are widely regarded as ideal substrates for self‐powered wearable sensors. However, the practical applications of hydrogels are commonly limited by their inherent low strength and toughness, which restrict their capacity to withstand repeated stretching, bending and other mechanical loads arising from human motion in ...
Boyu Du +9 more
wiley +1 more source
, 2018 锂离子电池的能量密度及其安全问题是限制其在电动汽车应用中的主要障碍。随着能量密度的不断提升,当务之急是有效解决锂离子电池的安全性问题。锂离子电池安全问题本质上与当前电解液中使用的高挥发性、易燃的有机溶剂有关。因此,本文主要从电解液的燃烧性角度,介绍了电解液在锂离子电池材料安全性方面的研究现状,包括阻燃添加剂、不燃性氟代有机溶剂、高浓度电解液及固液混合电解质的应用等,分析其对安全性能提升的机理 ...
张小颂, 夏永高
core
Rare Metals, Volume 45, Issue 10, October 2026.ABSTRACT Reflection loss (RL) ≤ −15 dB (corresponding to 96.875% electromagnetic energy absorption), a core metric for moderate‐ to high‐temperature (< 600°C) electromagnetic protection materials, is critical for ensuring the reliability of aerospace high‐temperature structural components.
Chunyan Ding +10 more
wiley +1 more source
, 2011 本发明公开了一种锌/多卤化物储能电池，以导电惰性材料为电极，以氯化锌和溴化锌溶液为电解质溶液，构成锌/多卤化物储能电池。锌/多卤化物储能电池采用电化当量较小、析氢过电位高的锌及多卤化物作为电池的活性物质，正负极电对间具有较高的电位差，两者共同决定了该电池技术具有较高的能量密度和功率密度。相对于锌溴液流电池，新体系储能电池能量密度提升30％，功率密度提升10％，明显提升了电池的可移动性，降低了电池系统的成本。该电池正、负极采用元素组成相同的电解液，避免了由于电解液交叉污染对电池性能和寿命带来的负面影响 ...
赖秦志, 张华民, 张立群
core
Rare Metals, Volume 45, Issue 10, October 2026.ABSTRACT Lightweight metallic materials with high irradiation tolerance are essential for aerospace systems operating in extreme irradiation environments. However, the irradiation behavior of particle‐reinforced aluminum matrix composites and underlying irradiation damage mechanisms remain insufficiently understood.
Yuyao Chen +7 more
wiley +1 more source
四川大学学报. 自然科学版, 1995 研究了一种新型的人工生物压电陶瓷复合种植材料─—ＨＡＢＴ生物压电陶瓷．对该种材料的压电性能、力学性能、热学性能、化学性能和生物学性能进行了初步考察和动物试验．结果表明，该材料既具有与人体组织相近的生物相容性和力学相容性，又具有相似于人体自然骨的压电性．该材料还能诱导骨组织的生长，符合生物安全性检测要求．
李继红 +4 more
doaj
Rare Metals, Volume 45, Issue 10, October 2026.ABSTRACT A central challenge in high‐performance photoelectrochemical (PEC) systems is mitigating the intrinsic limitations in photogenerated carrier separation and transport, while enabling efficient broad‐spectrum solar harvesting. Inspired by the synergistic effect between plasmonic resonance and heterojunction built‐in electric fields, a ternary ...
Yuhan Zhang +8 more
wiley +1 more source