Results 21 to 30 of about 715,730 (152)
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
Zhejiang Daxue xuebao. Lixue ban, 2019 采用密度泛函理论的B3LYP 方法、微扰理论的MP2 方法和自洽反应场（SCRF） 理论的SMD 模型方法，研究了水环境下羧基与氨基间为单氢键的α-Ala 旋光异构及羟自由基和氢氧根作用的反应。研究发现：α- Ala 的旋光异构可在a 和b 两个通道实现，a 通道为羧基顺反异构后，水分子簇作媒介质子以氨基为桥从α 碳的一侧向另一侧迁移；b 通道为水分子簇作媒介，质子从α 碳向氨基氮的迁移与羧基顺反异构协同进行。在a 通道，羟自由基水分子簇可致α-Ala 损伤。势能面计算表明：水环境下，在a 通道3 ...
YANHongyan(闫红彦) +3 more
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Rare Metals, Volume 45, Issue 10, October 2026.ABSTRACT Photocatalytic acetylene (C2H2) semihydrogenation is a green route for ethylene (C2H4) production, yet the activity–selectivity trade‐off caused by imbalanced adsorption/activation of reactants and products remains a core challenge. Herein, we realize precise regulation of Pd oxidation states (Pd0, Pdδ+, and Pd2+) on anatase TiO2 nanocubes via
Zhidan Wang +7 more
wiley +1 more source
Rare Metals, Volume 45, Issue 10, October 2026.ABSTRACT Magnetic particles coated with carbon shells have been considered as promising electromagnetic wave absorption materials with antibacterial features. However, how to precisely control the monodispersed magnetic nanoparticles on a carbon matrix to manipulate impedance matching and antibacterial performances is still a key challenge.
Xiaofei Li +10 more
wiley +1 more source
四川大学学报. 自然科学版, 2012 采用密度泛函（DFT）中的B3P86方法,结合Dunning的相关一致基组cc-PVTZ,优化计算硼氢化物（BHn）(n=1～5)可能的几何构型,得出最稳定构型的几何参数、电子结构和红外光谱等性质参数,给出了最稳定结构的总能量（ET）、结合能(EBT)、平均结合能(Eav)、电离势(EIP)、能隙（Eg）、费米能级（EF）和氢原子差分吸附能(Ediff)等.结果表明硼氢化物基态稳定结构的电子态分别为:n为奇数为单重态1∑_和1A,n为偶数为双重态2A;由于B原子属于缺电子原子,能与等电子原子H化合 ...
喻凌, 伍冬兰, 曾学锋
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Green Hydrogen in Brazilian Media: Dominant Narratives and Missing Dimensions of the Energy Trilemma
Politics &Policy, Volume 54, Issue 5, October 2026.ABSTRACT Media discourses help shape the visibility and legitimacy of energy transition pathways in the public sphere. This study examines how Brazilian mainstream newspapers framed green hydrogen and assesses the alignment of these narratives with the energy trilemma: energy security, environmental sustainability, and social accessibility. We analyzed
Flávia Mendes de Almeida Collaço +3 more
wiley +1 more source
Rare Metals, Volume 45, Issue 9, September 2026.ABSTRACT Photocatalytic H2 evolution coupled with biomass upgrading offers a sustainable route for clean energy conversion and high‐value chemical synthesis. Herein, an in situ grown S‐scheme MnS/MnB‐MBene heterojunction (denoted as SMx) was fabricated via alkaline etching of Mn2AlB2 followed by controlled sulfurization.
Pei Li +7 more
wiley +1 more source
Rare Metals, Volume 45, Issue 9, September 2026.ABSTRACT Electrosynthesis of hydrogen peroxide (H2O2) via the two‐electron oxygen reduction reaction (2e−ORR) offers a sustainable and decentralized alternative to the anthraquinone process. However, conventional solo‐active‐site catalysts are intrinsically limited by scaling relationships, imposing a trade‐off between activity and selectivity.
Yiqi Ding +12 more
wiley +1 more source
VO2 Hollow Nano‐Reactor: Enabling Near‐Room‐Temperature and Ultrafast Hydrogen Release From α‐AlH3
Rare Metals, Volume 45, Issue 9, September 2026.ABSTRACT α‐phase aluminum trihydride (α‐AlH3) is a promising high‐capacity hydrogen storage material, but its practical application is limited by slow dehydrogenation kinetics and high reaction temperatures. This study demonstrates, for the first time, effective modulation of the hydrogen release kinetics of AlH3 by employing a hollow nanostructured ...
Haoyuan Zheng +8 more
wiley +1 more source
Dianci bileiqi, 1998 研究了氢氧化铝和氢氧化镁两种金属水合物对硅橡胶耐漏电起痕性能的影响，分析了其影响机理。综合氢氧化铝对硅橡胶电气性能和物理机械性能影响的试验结果，得出了氢氧化铝的最佳含量和粒径；氢氧化镁也有助于硅橡胶材料耐漏电起痕性能的改善。
张照前 +3 more
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