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Influence of synthesis routes on the performance of Ni nano-sized catalyst supported on CeO2-Al2O3 in the dry reforming of methane
ChamQPham,AnhNgocTCao,LeKimHoangPham,PhamTTPhuong,ThiTuongViTran,Cao-MinhVo,Hong-HaTNguyen,Quang-AnhNguyen,TungMNguyen,Dai-VietNVo
Advances in Natural Sciences: Nanoscience and Nanotechnology Pub Date : 09/08/2022 00:00:00 , DOI:10.1088/2043-6262/ac8de7
Abstract
The dry reforming of methane is a potential solution to mitigate the global warming effect. In this study, the effects of various preparation methods including the impregnation, coprecipitation, and combined coprecipitation-impregnation on physical characteristics and DRM catalytic performance of Ni-CeO2-Al2O3 were investigated. The synthetic procedure was discovered to have a crucial role in the basicity and reducibility, as well as nickel dispersion of catalyst. With affordable basicity and high reducibility, the combination of coprecipitation-impregnation exhibited the best performance with CH4 and CO2 steady-state conversions of 72% and 82%, respectively. Moreover, the deactivation of catalysts was also studied. The formation of low graphitic type showed less harmful to catalyst.
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