The invention relates to a catalyst, especially for hydrogenating functional groups of organic compositions in the presence of water. Said catalyst contains nickel on a carrier, is reduced and stabilised and is provided with nickel crystallites with a monomodal nickel crystallite size distribution, a...
Publisher’s noteSpringer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations. About this article Cite this article Ni, W., Wang, T., Héroguel, F.et al.An efficient nickel hydrogen oxidation catalyst for hydroxide exchange membrane fuel cells...
Results can be explained due to the Ce effect in inhibition of secondary dehydration reactions forming unsaturated hydrocarbons that are coke precursors generating fast catalyst deactivation. 展开 关键词: Steam reforming Hydrogen Supported nickel
The catalytic performance is highly related to the catalyst structure. Herein, a series of Ni nanoparticles supported on Y2O3with different morphologies were successfully synthesized via hydrothermal process screening different pH environments. These Ni/Y2O3catalysts were applied to efficiently produce COx-fr...
[6] The process consists of heating the gas to 700–1,100 °C (1,300–2,000 °F) in the presence of steam over a nickel catalyst. The resulting endothermic reaction forms carbon monoxide and molecular hydrogen (H2).[7] 【参考译文】蒸汽甲烷重整(SMR)从天然气(主要是甲烷(CH4))和水生产...
The NiCuCr/C catalysts were synthesized by impregnation. Nickel nitrate, copper nitrate, and chromium nitrate were used as the metal sources, and Ketjen ECP600 carbon was selected as carbon support. Citric acid and urea were added to regulate the particle sizes. The final NiCuCr/C catalyst was...
which is lower than that of Raney-Ni and nickel net electrodes. The Tafel results show that the Volmer reaction is the rate determining step of HER for nickel net and Raney-Ni, while the hydrogen evolution reaction is controlled by a peculiar model for deposited Ni-Sn alloy. The energy con...
The invention relates to a method for producing a nickel supported catalyst comprising a solid substrate and nickel metal, said method comprising a step of impregnating a solid substrate with a solution of at least one nickel salt in a reaction solvent in the presence of a reducing agent. The...
On hydrogenation and dehydrogenation catalysts. XIII. Hydrogenation of octines with hydrogen sorbed on a nickel catalyst 来自 Semantic Scholar 喜欢 0 阅读量: 50 作者:ZAPLETAL, V,KOPPOVA, A,RUZICKA, V,SOUKUP, J 摘要: No abstract is available for this article.关键词: reduction, hydrogenation ...
appears as the most stable catalyst with a H2 selectivity, thanks to the promotion of WGS and the limitation of ethanol dehydration by ceria [42]. Also, in the case of ethanol ATR, Youn et al. [43] showed that nickel catalysts supported by the basic supports, ZrO2 and TiO2, had impro...