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Title: | Methane dry reforming with CO2 over ceria supported Ni catalyst prepared by reverse microemulsion synthesis | Authors: | Rashid, MU Daud, WMAW Mohidem, NA Mohamad, M. Akhtar, J Azam, M Miran, W |
Keywords: | Carbon deposition;CeO2 supported catalyst;Dry reforming;Microemulsion;Oxygen vacancies | Issue Date: | Jun-2022 | Publisher: | ELSEVIER SCI LTD | Journal: | FUEL | Abstract: | Reverse microemulsion synthesis route was employed for the preparation of Ni/CeO 2 catalysts with the aim of their application in dry reforming of methane. The catalytic activity and stability of the prepared catalysts was investigated in the temperature range of 550-800 degrees C with the ratio of CH4/CO2 = 1 and at high gas hourly space velocity (GHSV) of reactants (1.2 x 10(5) ml h(-1) g(-1)). In the prepared series of catalysts (20% Ni/CeO2, 40% Ni/CeO2, 80%Ni/CeO2); 40% Ni/CeO2(NC2) exhibited higher catalytic activity and better stability compared to 20% Ni/CeO2 (NCl) and 80% Ni/CeO2 (NC3). Moreover, results indicated that NC2 was found to be stable catalyst for both gas yield and H-2/CO ratio. This study indicated that proper balance between Ni metal and CeO2 content played a critical role in the achievement of better catalyst performance and in the decrease of carbon deposition. The characterization of fresh and spent catalysts was done by BET, XRD, TPR-H-2, EDX and TEM. |
Description: | Web of Science / Scopus |
URI: | http://hdl.handle.net/123456789/3196 | ISSN: | 0016-2361 | DOI: | 10.1016/j.fuel.2022.123433 |
Appears in Collections: | Faculty of Bioengineering and Technology - Journal (Scopus/WOS) |
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