文献类型：期刊文献

英文题名：NiCo@NiCo phyllosilicate@CeO2 hollow core shell catalysts for steam reforming of toluene as biomass tar model compound

作者：Li, Ziwei Li, Min Ashok, Jangam Sibudjing, Kawi

第一作者：李自卫;Li, Ziwei

通信作者：Sibudjing, K[1]

机构：[1]Guizhou Inst Technol, Sch Chem Engn, Guiyang 550003, Guizhou, Peoples R China;[2]Guizhou Inst Technol, Sch Civil Engn, Guiyang 550003, Guizhou, Peoples R China;[3]Natl Univ Singapore, Dept Chem & Biomol Engn, Singapore 117585, Singapore

第一机构：贵州理工学院化学工程学院

通信机构：corresponding author), Natl Univ Singapore, Dept Chem & Biomol Engn, Singapore 117585, Singapore.

年份：2019

卷号：180

起止页码：822-830

外文期刊名：ENERGY CONVERSION AND MANAGEMENT

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000457666700062)】；

基金：This work was supported by the National Environment Agency of Singapore (WTE-CRP 1501-103) and A*STAR (R-279-000-509-305). The hollow spheres were prepared and funded by the National Natural Science Foundation of China (21606057) and the Science and Technology Department of Guizhou Province ([2016]1061).

语种：英文

外文关键词：Sintering resistant; Core shell; NiCo@NiCo phyllosilicate@CeO2; Biomass; Steam reforming of toluene

摘要：Developing sintering and carbon resistant tar removal catalysts is crucial for biomass gasification technology. Herein, for the first time, NiCo@NiCo phyllosilicate@CeO2 hollow core shell catalysts have been designed for steam reforming of toluene (SRT) as the biomass tar model compound. They show both good catalytic activity and stability within 45 h of time on stream due to their high sintering resistance of NiCo because of the strong interactions between NiCo and CeO2, high metal exposure as a result of the high specific surface area, high surface metal concentration as well as the high oxygen vacancies as evidenced from the H-2-Temperature-programmed reduction (H-2-TPR), H-2 chemisorption and X-ray photoelectron spectroscopy (XPS) characterizations respectively. Additionally, the synergistic effect between Ni and Co further improves their carbon resistant property. By comparison, Co@Co phyllosilicate@CeO2 catalysts perform the lowest toluene conversion and stability mainly due to their structural instability during reaction resulting from their high Si/Co ratio, leading to their low specific surface area and Co exposure. The outstanding SRT performance of NiCo@NiCo phyllosilicate@CeO2 catalysts indicates their promising application for steam reforming of biomass tar reaction.