Ni nanoparticles supported on carbon as efficient catalysts for steam reforming of toluene(model tar)

查看全文 作　　者：Chun [1]Shen;Wuqing [1]Zhou;Hao [1]Yu;Le [2]Du

机构地区：[1]Beijing Key Laboratory of Bioprocess,College of Life Science and Technology,Beijing University of Chemical Technology;[2]The State Key Laboratory of Chemical Resource Engineering,Beijing Key Laboratory of Membrane Science and Technology,Beijing University of Chemical Technology

出　　处：《Chinese Journal of Chemical Engineering》索引2018年第26卷第2期,共8页

基　　金：Supported by the National Natural Science Foundation of China(21606008,21436002);the National Basic Research Foundation of China(2013CB733600);the Fundamental Research Funds for the Central Universities(ZY1630,JD1617,buctrc201616,and buctrc201617) 摘　　要：This paper investigated the influences of surface properties of carbon support and nickel precursors(nickel nitrate, nickel chloride and nickel acetate) on Ni nanoparticle sizes and catalytic performances for steam reforming of toluene. Treatment with nitric acid helped to increase the amount of functional groups on the surface and hydrophilic nature of carbon support, leading to a homogeneous distribution of Ni nanoparticles. The thermal decomposition products of nickel precursor also played an important role, Ni nanoparticles supported on carbon treated with acid using nickel nitrate as the precursor exhibited the smallest mean diameter of 4.5 nm. With the loading amount increased from 6 wt% to 18 wt%, the mean particle size of Ni nanoparticles varied from4.5 nm to 9.1 nm. The as-prepared catalyst showed a high catalytic activity and a good stability for toluene steam reforming: 98.1% conversion of toluene was obtained with the Ni content of 12 wt% and the S/C ratio of3, and the conversion only decreased to 92.0% after 700 min. Because of the high activity, good stability, and low cost, the as-prepared catalyst opens up new opportunities for tar removing. 关键词：催化剂 Ni 甲苯焦油蒸气碳模型表面性质

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Ni nanoparticles supported on carbon as efficient catalysts for steam reforming of toluene(model tar)

参考文献(52)

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