Results 21 to 30 of about 2,917 (119)
A Multifunctional Reducing Molecular Dopant for 16% Efficient Tin Perovskite Solar Cells
Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT Although lead‐based photovoltaics have seen remarkable progress, tin‐based perovskite solar cells (Sn‐PSCs) continue to face challenges due to their limited power conversion efficiency and insufficient operational stability. The primary cause of this performance gap is the susceptibility of Sn2+ to oxidation, which promotes rapid defect ...
Xianyong Zhou +12 more
wiley +1 more source
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
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Zhongguo shiyan zhenduanxue, 2008 目的为了了解输血对病人血液中一氧化氮浓度的影响,给临床输血提供一些参考。方法取我院因贫血入院病人标本,每位病人输红细胞都在4单位以上。分别在输血前及在输血完毕后2小时内留取血浆标本于-20℃保存,然后用NO检测试剂盒测定各标本及标准品的OD值,并计算的各标本的NO含量。结果病人在输血后血浆一氧化氮浓度有明显升高。根据统计学处理显示,输血后血浆中一氧化氮的浓度与输血前比较有显著性的变化。结论病人输血后NO浓度升高的原因,可能与红细胞作为一氧化氮的储存和运输载体有关,受血者会产生一种免疫应答 ...
严建新 +3 more
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Tailoring Spin States of CuNNi3 via d‐d Orbital Coupling for High Performance Water Splitting
Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT Against the backdrop of escalating global energy crises and environmental challenges, the development of clean and sustainable hydrogen energy has become increasingly imperative. Hydrogen production via water electrolysis is widely regarded as a promising approach due to its green and efficient characteristics.
Weigao Zhong +6 more
wiley +1 more source
Gongye shui chuli, 2019 相对于传统生物脱氮技术，低能耗和低成本的厌氧氨氧化技术迅速成为市政污水脱氮领域的研究热点。介绍了厌氧氨氧化反应机理的最新研究进展，进一步分析和讨论了采用主流及侧流厌氧氨氧化工艺治理市政污水时氮源污染过程中存在的瓶颈。与侧流厌氧氨氧化工艺相比，主流厌氧氨氧化工艺在市政污水脱氮处理上具有更大的优势和潜力。最后，针对市政污水脱氮处理现状给出了厌氧氨氧化技术需解决的问题和未来发展方向。
解云飞 +3 more
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Gongye shui chuli, 2022 厌氧氨氧化工艺作为一种经济高效的新型生物脱氮技术，近年来受到了极大的关注。然而厌氧氨氧化菌世代周期长、对生存环境敏感、容易受抑制等诸多问题导致厌氧氨氧化工艺启动时间长及运行稳定性差，限制了其在实际废水处理中的应用。有效的厌氧氨氧化强化措施有望解决这一问题。介绍了国内外关于厌氧氨氧化强化途径的研究进展，重点评述了无机碳、铁元素、物理场（如电场、磁场、超声波等）在强化厌氧氨氧化菌生长代谢、加速厌氧氨氧化工艺启动以及提升工艺脱氮效能方面的可行性及潜在机理。分析认为 ...
李天皓 +5 more
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Rare Metals, Volume 45, Issue 2, February 2026.ABSTRACT Ni3S2 has emerged as a promising catalyst for the electrochemical oxidation of biomass‐derived 5‐hydroxymethylfurfural (HMF) to 2,5‐furandicarboxylic acid (FDCA), driven by its distinctive physicochemical properties. However, its practical catalytic efficiency is severely hindered by abundant electrochemically inactive surface sites and poor ...
Cheng‐Feng Yi +5 more
wiley +1 more source
Engineering 2D Materials for High‐Current‐Density Electrocatalytic Water Splitting
Rare Metals, Volume 45, Issue 2, February 2026.ABSTRACT Water electrolysis is a key method for sustainable hydrogen production, using water as an abundant resource. However, efficient and stable operation at high current densities remains challenging due to energy losses, catalyst degradation, and limited ion–electron transport.
Tianqi Guan +8 more
wiley +1 more source
Rare Metals, Volume 45, Issue 1, January 2026.ABSTRACT Developing efficient catalytic thermal desorption systems is of great significance in the field of sustainable soil remediation. Herein, novel Mn–Ce solid solution modified Co3O4 nanocrystals were successfully prepared for the removal of perfluorooctanoic acid (PFOA) in soil.
Yu‐Hao Liu +8 more
wiley +1 more source
Dianci bileiqi, 2005 将氧化铝粉体置于高能球磨机中,充入氮气直接进行氮化反应制备氮化铝,用XRD、SEM等仪器对氮化铝进行了表征。研究结果表明,直接氮化法和高能球磨法两者结合起来制备氮化铝是可行的;氧化铝在研磨18h后开始转化成氮化铝;研磨21h,氮化反应已相当完全;高能球磨结合直接氮化合成氮化铝是一种节能的材料制备方法。
江巍, 刘亚云
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