文献类型：期刊文献

英文题名：Ni supported on MgO modified attapulgite as catalysts for hydrogen production from glycerol steam reforming

作者：Xu Qingli[1];Zhang Zhengdong[1];Huang Kai[2];Xin Shanzhi[3];Mao Chuang[1];Chen Chenge[1];Yang Huan[1];Yue Yang[1];Yan Yongjie[1]

机构：[1]East China Univ Sci & Technol, Res Ctr Biomass Energy, Shanghai, Peoples R China;[2]Guangxi Acad Sci, Natl Engn Res Ctr Nonfood Biorefinery, Guangxi Key Lab Biorefinery, Nanning, Peoples R China;[3]Jianghan Univ, Hubei Key Lab Ind Fume & Dust Pollut Control, Wuhan, Peoples R China

年份：2021

卷号：46

期号：54

起止页码：27380

外文期刊名：INTERNATIONAL JOURNAL OF HYDROGEN ENERGY

收录：;EI(收录号：20212910655163);WOS:【SCI-EXPANDED(收录号:WOS:000679997300010)】；

基金：This project was financially supported by the National Natural Science Foundation of China (No.21376084), Guangxi Key Laboratory of Bio-refinery (GXKLB20-02), Guangdong Guangxi Joint Fund -Key Projects (2020B1515420005) and Hubei Key Laboratory of Industrial Fume and Dust Pollution Control (HBIK2020-04). The authors thank Research Center of Analysis and Test of East China University of Science and Technology for the help on the characterization.

语种：英文

外文关键词：Hydrogen; Steam reforming; Attapulgite; Catalysts; MgO; Modified

摘要：A series of Mg-modified Ni/Attapulgite (ATP) catalysts have been prepared by impregnation method for glycerol steam reforming to produce hydrogen. The physicochemical proper ties of catalysts were characterized using various techniques including N-2 physical adsorption analysis, XRD, H-2-TPR, SEM, TEM and NH3-TPD. The results of N-2 physical adsorption indicated MgO modified Ni-based catalysts had unique mesostructure, resulting in the high metal dispersion and interaction between active metal and support as proven by XRD, TEM and H-2-TPR. Results of glycerin reforming experiments showed that Ni/10MgO/ATP catalyst had the highest activity than that of the other catalysts. Ni/10MgO/ATP catalyst had the smallest Ni average crystal size (10.1 nm) and the highest surface area (110.31 m(2)/g). These excellent properties made it show the enhanced glycerol conversion (94.71%) and a higher H-2 yield (88.45%) and the longest stability (30 h) during glycerol steam reforming (GSR) at 600 degrees C, W/G = 3, and WHSV = 1 h(-1). The used catalysts after 60 h of glycerin reforming experiments were also investigated by XRD, SEM, TEM, Roman and TG-DTG. The results indicated that the addition of Mg significantly inhibited the sintering of nickel grains and the formation of amorphous carbon. Therefore, Ni/10MgO/ATP catalyst increased the activity of the catalyst and extended the life of the catalyst. (C) 2021 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.