Pt supported on doped CeO2/Al2O3 as catalyst for dry reforming of methane |
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| Affiliation: | 1. Military Institute of Engineering, Chemical Engineering Department, Praça Gal. Tiburcio 80, Rio de Janeiro, 22290-270, Brazil;2. National Institute of Technology, Catalysis Division, Av. Venezuela 82, Rio de Janeiro, 20081-312, Brazil;3. Fluminense Federal University, Chemical Engineering and Petroleum Department, Rua Passo da Pátria, 156, Niterói 24210-240, Brazil;1. Laboratory of Energy and Environment Interface Engineering, National University of Singapore Suzhou Research Institute, 377 Linquan Street, Suzhou 215123, PR China;2. Department of Chemistry, National University of Singapore, 3 Science Drive 3, 117543, Singapore;3. Department of Chemistry, Shanghai Normal University, Shanghai 200234, PR China;4. Singapore-Peking University Research Centre for a Sustainable Low-Carbon Future, 1CREATE Way, #15-01, CREATE Tower, 138602, Singapore;5. BNLMS, SKLSCUSS, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, PR China;6. Department of Physics, National University of Singapore, 2 Science Drive 3, 117543, Singapore;1. Department of Chemistry, Heterogeneous Catalysis Laboratory, University of Cyprus, 1 University Avenue, University Campus, P.O. Box 20537, CY 2109, Nicosia, Cyprus;2. Laboratory of Electron Microscopy and Microanalysis, School of Natural Sciences, University of Patras, Patras, Greece;1. Postgraduate Program in Chemical Engineering, State University of Maringá, Maringá, PR, Brazil;2. Laboratory of Catalysis and Biofuel Production (LabCatProBio), Federal University of Paraná - Setor Palotina, Palotina, PR, Brazil;3. Chemistry Institute, Federal University of Goiás, Goiânia, GO, Brazil;1. Chemical Engineering Department, College of Engineering, King Saud University, P.O. Box 800, Riyadh 11421, Saudi Arabia;2. King Abdullah City for Atomic & Renewable Energy, Energy Research & Innovation Center (ERIC) in Riyadh, Riyadh 11451, Saudi Arabia;3. Sankalchand Patel University, Visnagar, Gujarat, 384315, India;4. CNR-ITAE, Istituto di Tecnologie Avanzate per Energia “Nicola Giordano”, Via S. Lucia Sopra Contesse 5, 98126, Messina, Italy;5. School of Chemistry and Chemical Engineering, Queen''s University Belfast, Belfast BT9 5AG, Northern Ireland, UK |
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| Abstract: | This work investigated the effect of the nature of dopant (Pr, Nb and Zr) on the performance of Pt supported on cerium-based oxides deposited on alumina for dry reforming of methane. in situ XRD and XANES analyses showed that the sample doped with Pr exhibited the highest redutibility of ceria (23%). Furthermore, the cyclohexane dehydrogenation reaction revealed that the addition of Pr improved the resistance to metal sintering during the dry reforming reaction. In the absence of doped-ceria oxide, a strong deactivation took place on Pt/Al2O3 catalyst during reaction, which was due to the absence of support reducibility and the highest Pt sintering. Among the doped-ceria samples, Pt/CePr/Al2O3 exhibited the highest activity and stability. These results were attributed to: (i) the oxygen mobility of the supports containing ceria, mainly for the sample doped with Pr, which favors the carbon removal mechanism; and (ii) the absence of Pt sintering during the reaction. |
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| Keywords: | Dry reforming Biogas Platinum |
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