文献类型：期刊文献

英文题名：Highly active and stable Ni@SiO2 catalyst for ammonia decomposition

作者：Li, Shigang[1,2];Liu, Xiaohui[1,2];Guo, Yong[1,2];Wang, Yanqin[1,2]

机构：[1]East China Univ Sci & Technol, State Key Lab Green Chem Engn & Ind Catalysis, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Sch Chem & Mol Engn, Shanghai 200237, Peoples R China

年份：2024

卷号：368

外文期刊名：FUEL

收录：;EI(收录号：20241415832915);WOS:【SCI-EXPANDED(收录号:WOS:001215696200001)】；

基金：This work is supported financially by the NSFC of China (No. 22072041, 21832002) , the National Key Research and Development Program of China (No. 2022YFA1504904) and the Science and Tech- nology Commission of Shanghai Municipality (10dz2220500) .

语种：英文

外文关键词：Ammonia decomposition; Ni@SiO2 catalyst; Sol-gel method; Hydrogen carrier; High dispersion

摘要：Ammonia is considered as a potential hydrogen carrier as its high hydrogen content. Hydrogen release still presents challenges due to the lack of efficient catalyst. In this work, we report a Ni@SiO2 catalyst prepared through a sol-gel method, which displays satisfied catalytic activity and remarkable long-term stability. The origination of activity and stability has been investigated carefully by various characterizations. The strong interaction between nickel species and silica species is responsible for the excellent performance via generating small nickel particle and hindering the sintering of nickel during the high temperature reaction condition. This study offers novel insights into the design and preparation of highly efficient catalysts for ammonia decomposition to produce hydrogen.