Influence of synthesis routes on the performance of Ni nano-sized catalyst supported on CeO 2 -Al 2 O 3 in the dry reforming of methane

• Published in: Advances in natural sciences. Nanoscience and nanotechnology Vol. 13; no. 3; p. 35011
• Main Authors: Pham, Cham Q, Cao, Anh Ngoc T, Pham, Le Kim Hoang, Phuong, Pham TT, Tran, Thi Tuong Vi, Vo, Cao-Minh, Nguyen, Hong-Ha T, Nguyen, Quang-Anh, Nguyen, Tung M, Vo, Dai-Viet N
• Format: Journal Article
• Language: English
• Published: 01.09.2022
• ISSN: 2043-6262; 2043-6262
• 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-CeO 2 -Al 2 O 3 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 CH 4 and CO 2 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.