Boosted methane dry reforming for hydrogen generation on cobalt catalyst with small cerium dosage |
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| Affiliation: | 1. Institute of Environmental Technology and Sustainable Development, Nguyen Tat Thanh University, Ho Chi Minh City 700000, Viet Nam;2. Faculty of Environmental and Food Engineering, Nguyen Tat Thanh University, Ho Chi Minh City, Viet Nam;3. Department of Chemistry, Faculty of Science and Technology, Thammasat University, Pathumthani 12120, Thailand;4. Division of Computational Physics, Institute for Computational Science, Ton Duc Thang University, Ho Chi Minh City, Viet Nam;5. Faculty of Applied Sciences, Ton Duc Thang University, Ho Chi Minh City, Viet Nam;6. Institute of Chemical Technology, Viet Nam Academy of Science and Technology, 1A TL 29 Street, Thanh Loc Ward, District 12, Ho Chi Minh City, Viet Nam;7. Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Street, Cau Giay District, Hanoi, Viet Nam;8. Physics in Education Faculty, Thai Nguyen University of Education, Thai Nguyen City, Viet Nam;9. Department of Materials Science and Engineering, Institute of Green Manufacturing Technology, Korea University, Seoul 02841, Republic of Korea;10. Department of Chemical Engineering and Applied Chemistry, Chungnam National University, Daejeon, 34134, Republic of Korea |
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| Abstract: | Metal-support interface influences the catalytic activity and physical properties of heterocatalysts dramatically. Herein, the effect of cerium on material properties and catalytic activity of cobalt over gamma-alumina applied in dry reforming of methane (DRM) was investigated. The dispersion of cobalt over gamma-alumina was noticeably improved with low cerium dosages ranging from 0.1 to 0.5 wt%. In addition, the presence of Ce promoter on catalyst surface led to an enhancement in reducibility of cobalt oxide to cobalt metal in the catalyst activation. Using CO2-temperature programmed desorption technique, the catalyst basicity was found to increase proportionally with cerium loading. At an optimal dosage of 0.3–0.5 wt%, the cerium promoted cobalt supported on gamma catalyst displayed outstanding performance in DRM with noticeable conversion improvements up to 11% in both methane and carbon dioxide. |
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| Keywords: | Mesoporous alumina Cobalt catalyst Hydrogen Syngas Methane dry reforming |
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