Results 21 to 30 of about 4,217 (128)

Acid‐Etched Co‐Vacancy‐Tunable CoFeP/N,P‐Codoped Carbon Nanocages for Highly Efficient Alkaline Water Electrolysis

open access: yesRare Metals, Volume 45, Issue 3, March 2026.
ABSTRACT Efficient and durable bifunctional electrocatalysts are vital for scalable water electrolysis. Here, we realize cobalt‐vacancy (Covac) engineering in CoFeP supported on N,P‐codoped carbon nanocages (Co1‐vacFeP/NPC) through a simple route comprising a CoFe Prussian blue analog precursor, phosphidation–pyrolysis, tannic‐acid etching, and a ...
Yuan‐Liang Yuan   +6 more
wiley   +1 more source

Bimetallic Mo/Fe‐Doped CoP2 Nanoleaf Array as a Bifunctional Electrocatalyst for Overall Water Splitting

open access: yesRare Metals, Volume 45, Issue 3, March 2026.
ABSTRACT The development of efficient and stable bifunctional catalysts remains a key challenge for green hydrogen production via electrochemical water splitting. In this study, a bimetallic Mo/Fe‐doped CoP2 nanoleaf array anchored on carbon cloth (Mo, Fe‐CoP2@CC) was synthesized from zeolitic imidazolate framework‐L (ZIF‐L) via an ion‐exchange and low‐
Xiangqun Zeng   +6 more
wiley   +1 more source

Optimizing the Surface Coordination of Pd‐Cu Nanoalloy Through Chemical Ordering to Enhance Hydrogenation Selectivity

open access: yesRare Metals, Volume 45, Issue 3, March 2026.
ABSTRACT Precise control of chemical ordering in bimetallic nanocatalysts offers a route to decouple activity and selectivity in acetylene hydrogenation, but direct atomic‐scale evidence linking surface order to catalytic performance is scarce. Here, we tune Pd‐Cu nanoalloys from chemically disordered to highly ordered states by composition control and
Fan Xue   +5 more
wiley   +1 more source

Study on the kinetics of dimethyl ether one-step synthesis from syngas(合成气一步法制二甲醚的动力学研究)

open access: yesZhejiang Daxue xuebao. Lixue ban, 2003
采用固定床积分反应器,研究了用浸渍法制备的CuO-ZnO/Y-zeolite双功能催化剂上CO加氢直接合成二甲醚的反应动力学.按一氧化碳加氢先合成甲醇,再由甲醇脱水生成二甲醚两步串联的反应机理,分别建立了动力学模型,并对该催化剂上甲醇合成及甲醇脱水的机理作了探讨.模型的计算值和实验值能较好吻合,两步反应的表观治化能分别为27.98 kJ/mol和30.62kJ ...
JIANGDa-hao(江大好)   +3 more
doaj   +1 more source

Bottom‐Up Strategy Toward 3D Porous MXene/MoS2 Nanosheets/Graphene Nanoarchitectures as Highly‐Efficient Hydrogen Evolution Electrocatalysts

open access: yesRare Metals, Volume 45, Issue 3, March 2026.
ABSTRACT As a core component in the electrochemical water splitting system, the cathode catalyst is capable of boosting the kinetics of the hydrogen evolution reaction (HER), while the scarcity and expenditure of current noble metal‐based electrocatalysts seriously restrict the large‐scale commercial development of hydrogen manufacturing devices. Here,
Haiyan He   +8 more
wiley   +1 more source

金属水合物对硅橡胶耐漏电起痕性能的影响 附视频

open access: yesDianci 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
doaj  

Engineering a Tumor‐Targeted MgH2@Lip/PD‐L1 Nanoplatform for Synergistic Hydrogen Therapy and Immune Activation

open access: yesRare Metals, Volume 45, Issue 3, March 2026.
ABSTRACT Lung cancer remains the leading cause of cancer‐related deaths worldwide, yet immune checkpoint blockade (ICB) is often compromised by an immunosuppressive tumor microenvironment (TME) with acidosis, hypoxia, and poor T cell infiltration. Here, we develop a TME‐responsive nanoplatform (MgH2@Lip/PD‐L1) that couples hydrogen gas therapy with PD ...
Xuyu Gu   +5 more
wiley   +1 more source

Non‐Precious Metals Enhance Hydrogen Evolution in COF/Cd0.9Cu0.1S S‐Scheme Heterojunctions: KPFM Reveals Charge Transfer Pathways

open access: yesRare Metals, Volume 45, Issue 3, March 2026.
ABSTRACT Photocatalytic hydrogen production from water splitting is a promising strategy for sustainable and clean energy generation. However, the design of low‐cost, highly active photocatalysts remains a critical challenge. In this study, covalent organic frameworks (COFs) were loaded onto the surface of Cd0.9Cu0.1S to fabricate COF/Cd0.9Cu0.1S ...
Yue Zhao   +3 more
wiley   +1 more source

Short-chain alcohol hydrogen donor for the hydrodeoxygenation of vanillin(低碳醇用于香兰素加氢脱氧催化反应的研究)

open access: yesZhejiang Daxue xuebao. Lixue ban, 2016
在一系列Mo2C/AC催化剂上,研究了短链低碳醇作为氢供体在香兰素加氢脱氧催化反应中的作用.实验表明,在香兰素的加氢脱氧催化反应过程中,乙醇不仅作为溶剂,同时也是较理想的氢供体.20% Mo2C/AC催化剂具有最佳的催化性能,在200 ℃温度下,香兰素的转化率达28. 2%,4-甲基愈创木酚的选择性高达94. 2%,其加氢脱氧活性主要与催化剂中高分散的β-Mo2C纳米粒子有关.
WANGFenglian(王枫濂)   +2 more
doaj   +1 more source

Vertically Oriented Single‐Layer Grains for a Highly Bifunctional Perovskite Photovoltaic Light‐Emitting Device

open access: yesRare Metals, Volume 45, Issue 3, March 2026.
ABSTRACT The realization of bifunctional perovskite devices integrating photovoltaic (PV) and light‐emitting diode (LED) capabilities requires precisely controlled grain architectures to facilitate dual carrier transport pathways. In this work, sulfaguanidine (SG) molecules were introduced into the perovskite solution to reconstruct the crystallization
Jiong Li   +7 more
wiley   +1 more source

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