Results 121 to 130 of about 25,659 (229)
Phosphothermal (high F-, low OH-) Synthesis and Characterization of the Novel Transition-Metal Fluorophosphates [PDF]
, 2015 过渡金属氟磷酸盐在锂离子电池、多孔吸附、磁性和催化等领域均有着广泛的应用，但过渡金属氟磷酸盐体系经历了几十年的发展，却因合成方法上一直未有突破而进展缓慢。由此，本文作者提出一种有效的合成氟磷酸盐的富F-贫OH-的磷酸溶剂热法，并运用此方法合成出30余种新化合物晶体。主要结果如下： （1）该论文探索总结出一种合成混合高价锰的新方法，合成出首个具有特异多级类clathrate结构的新型混合高价锰（Mn3+/Mn4+）氟磷酸盐MnIII6F12(PO3(OH))8[Na8K3.74((H3O)0.26(H2O)
任伟健
core
Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT Chemically self‐charging aqueous zinc‐ion batteries (AZIBs) have emerged as promising candidates for energy storage technologies owing to their environmental autonomy and structural simplicity. Nonetheless, the self‐charging performance is significantly compromised by the limited potential difference between cathodes and oxygen, as well as the
Yan Wang +5 more
wiley +1 more source
, 2013 金属探测器作为一种高科技产品,凭借其优越的性能,已广泛使用于考古勘探,并逐步与公众考古结合起来,成为文物发掘和保护的重要武器。本文通过介绍金属探测器的考古勘探原理、优越性及其在英美公众考古领域的应用情况 ...
杜晓俊, 汪常明
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Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT Platinum (Pt)‐based catalysts are crucial for the commercialization of hydrogen/metal air batteries, but they suffer from Pt scarcity, high cost, and nanoparticle dissolution/agglomeration, mainly leading to performance degradation. We address this by synthesizing a PtFe alloy catalyst (PtFe–PA–NC) via a phytic acid (PA) assisted pyrolysis ...
Chenyang Shu +9 more
wiley +1 more source
Study on Microstructure and properties of melting and casting and hot rolling process of 8079 high precision aluminum foil stock [PDF]
, 2015 本文以8079高精铝箔坯料的工艺流程为主线，结合自身在A公司近20年的工作经验和材料科学理论，采用ICP、Alscan在线测氢、金相显微分析、拉伸试验、TEM、SEM、EDS和离线板形检测仪等现代材料分析测试技术，同时运用SPSS软件对测试数据进行统计分析，研究不同制备工艺对铸造组织、均热组织和热轧形变组织的形成规律，以改善8079高精铝板坯的轧制性能和力学性能，使国内企业早日用8079合金替代1235合金生产高品质的双零铝箔提供应用数据，具有一定的理论和实际应用价值。研究工作及结果如下 ...
吴天华
core
Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT Tellurium (Te), emerging as a promising alternative to sulfur (S) and selenium (Se), offers significant advantages for potassium (K) ion storage due to its comparable theoretical volumetric capacity (2619 mAh cm−3) and higher electronic conductivity (∼102 S m−1), which promotes rapid charge transfer and improves reaction kinetics.
Sung Woo Cho +7 more
wiley +1 more source
Dianci bileiqi, 2019 纳米碳纤维材料由于耐腐蚀特性和导电性能较优而成为接地材料发展的新方向。然而,纳米碳纤维材料电气性能仍未得到充分的试验研究。纳米碳纤维材料的电阻率、磁导率、热稳定性能、耐受冲击电流能力等电气性能指标是纳米碳纤维接地网设计和评估的基础,对上述参数进行测量。测量结果表明:编织型和硬质型纳米碳纤维材料的电阻率分别是121. 3μΩ·m和46. 71μΩ·m左右,相对磁导率均为1,但其热稳定性能较差,热稳定系数分别为13. 058和41.
赵建利, 李冠男, 张鹏, 赵建坤
doaj
Construction of Controlled Drug Release System based on Photothermal Conversion Property of Polypyrrole [PDF]
, 2016 聚吡咯（PPy）是一种有机导电聚合物，利用其优异的导电性、生物相容性以及较强的机械性能，可用作药物载体，并用电控制药物释放。此外，聚吡咯还具有较强的近红外吸收和理想的光热转换能力，聚吡咯纳米粒子（PPyNPs）的光热转化效率可达44.7%。结合这些优异性能，可实现聚吡咯材料在药物输送、生物传感及光热治疗等多个领域的应用。 本论文利用聚吡咯的光热转换性质，构建了两类基于近红外激光触发释药的药物释放体系： （1）月桂酸和聚乳酸复合的药物载体点阵，点阵中每一个点由两部分组成，包括内层药物核心和外部保护层 ...
王诗卉
core
Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT Emerging as attractive alternatives for sustainable, low‐cost, and high‐performance electromagnetic interference (EMI) shielding, biomass‐derived carbon is nonetheless constrained by a limited repertoire of shielding mechanisms. Herein, a straightforward method was employed to synthesize self‐supporting Co nanoparticles embedded in porous N ...
Yingjie Xu +6 more
wiley +1 more source