Influence of synthesis routes on the performance of Ni nano-sized catalyst supported on CeO2-Al2O3 in the dry reforming of methane. (1st September 2022)

• Record Type: Journal Article
• 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
• Is Part Of: Advances in natural sciences. Volume 13:Number 3(2022)
• Publication Date: 2022-09-01
• Subjects: methane dry reforming -- hydrogen -- syngas -- nickel catalyst -- synthetic routes; 2.03 -- 4.02 -- 5.06; Nanotechnology -- Periodicals; Nanoscience -- Periodicals; 620.5
• DOI: 10.1088/2043-6262/ac8de7
• Languages: English
• ISSNs: 2043-6254

Abstract

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 -Al2 O3 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.