Results 31 to 40 of about 5,396 (208)
Development and Optimization of a Cylindrical Laminated Methanol Steam Reforming Microreactor with Porous Metal as Catalyst Support [PDF]
, 2016 摘要 以低碳醇为燃料的制氢微反应器可为燃料电池等微小型电子装置提供安全可靠的在线氢源，从而引起世界各国研究者的广泛关注。本文以多孔金属材料为载体，设计制造了一种新型层叠式柱形甲醇水蒸气重整制氢微反应器，可获得较佳的制氢效果。论文主要研究内容如下： （1）载体结构甲醇水蒸气重整制氢微反应器设计 利用Solidworks软件设计了一种新型层叠式柱形甲醇水蒸气重整制氢微反应器。其中蒸发腔设计栅板结构，可有效增强反应溶液的汽化效果以及重整腔入口流体分布的均匀性。载体板采用多孔金属材料，降低加工成本 ...
张军鹏
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A High Capacity‐Long Cycling Concurrent Strategy of Ti3C2/MgH2 for Lithium Storage
Rare Metals, EarlyView.ABSTRACT The excellent electrical conductivity and superior cycling stability render Ti3C2 MXene a promising Li ion battery anode. Nevertheless, the practical implementation of Ti3C2 MXene in commercial applications faces significant challenges, predominantly due to the low specific capacity.
Tingting Xu +9 more
wiley +1 more source
The diversity and physiological characteristics of microbes involved in hydrogen metabolism from deep-sea hydrothermal vent fields [PDF]
, 2015 由微生物介导的发酵产氢由于具有众多的优点，在制氢方面可能具有更大的生产潜力。深海热液系统具有特殊生态环境,与陆地和海洋中的其他生物群落有着根本的区别。本研究针对深海热液环境开展氢代谢菌的研究工作,以期获得特殊生境中的氢代谢微生物资源和氢酶资源。 利用西南印度洋，南大西洋，东太平洋等不同来源的深海热液环境样品，进行了氢代谢菌的分离培养工作。共获得7个高温发酵产氢富集培养物。细菌16SrRNA基因序列分析表明，富集培养物中的主要类群是Calroanaerobacter，Clostridium ...
姜丽晶
core
Rare Metals, EarlyView.ABSTRACT Developing low‐energy‐input electrocatalytic systems for efficient hydrogen production is crucial for advancing sustainable energy technologies. The overall hydrazine splitting (OHzS) has emerged as a promising strategy to reduce the overall energy consumption by replacing the sluggish oxygen evolution reaction.
Haozhou Chen +13 more
wiley +1 more source
Advanced NPs catalysts prepared by Nanoparticles Beam Composite Deposition System [PDF]
, 2016 当前社会的发展对能源，尤其是对化石能源的需求日益扩大。化石能源作为一种不可再生资源供需缺口逐渐增大，而且其在利用过程中常伴随着严重的环境污染问题。燃料电池和氢能源作为一种新型绿色能源引起了人们越来越多的重视，具有长远的应用前景和重要的研究意义。直接甲酸燃料电池和电解析氢作为其中关键技术，已得到了大量的关注和长足的发展。目前采用的Pt及Pt基纳米催化剂存在造价高，活性低和寿命短等诸多问题，严重阻碍着燃料电池和氢能源的全面商业化运作。 本文采用课题组自主研发的纳米粒子束流复合沉积系统 ...
林城伟
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Research status and progress of hydrogen embrittlement of hydrogen pipelines [PDF]
, 2023 Hydrogen transportation through pipelines has extremely high economic value in realizing the development of the hydrogen energy industry and promoting efficient energy utilization.
Hongliang MING, Jianqiu WANG, Jianwei DU
core +1 more source
Rare Metals, EarlyView.ABSTRACT TiFe‐based hydrogen storage alloys have garnered significant attention because of their cost‐effectiveness, high hydrogen capacity, and favorable hydrogen absorption/desorption characteristics. However, practical application was limited by activation challenges and sensitivity to environmental poisoning.
Yuehai Li +8 more
wiley +1 more source
Rare Metals, EarlyView.ABSTRACT Converting CO2 to CH4 under mild conditions is a promising strategy for solving environmental and energy problems, but also a challenge. In this work, the low‐temperature CO2 hydrogenation process over Ni/CeO2 catalysts was significantly accelerated by optimizing the H2 dissociation ability of Ni through the size effect, thus A‐Ni/CeO2 with an
Yu Xie +8 more
wiley +1 more source
Progress of dye-sensitized water-splitting for hydrogen production [PDF]
, 2006 The mechanism of dye-sensitized water-splitting for hydrogen production is introduced. Research works on the use of different dye molecules and redox mediators are reviewed.
Leung, MKH, Leung, YC, Ni, M
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Dual‐Stage Heat Treatment for Enhanced Hydrogen Storage Properties of Mg−Ni−Y Alloys
Rare Metals, EarlyView.ABSTRACT Mg−Ni−Y alloy is considered to be one of the most promising hydrogen storage materials, but its high dehydrogenation energy barrier hinders its practical application. A dual‐stage heat treatment (490°C × 4 h + 550°C × 4 h) is applied to optimize the microstructure and hydrogen storage performance of a vacuum‐melted Mg94Ni3Y3 alloy.
You Lv +6 more
wiley +1 more source