Dry reforming of methane over Co–Mo/Al2O3 catalyst under low microwave power irradiation
In this work, microwave (MW) irradiation was used to activate Co/Al2O3, Mo/Al2O3, and Co-Mo/Al2O3 catalysts for dry reforming of methane (DRM) reactions. Experimental results indicate that single metallic catalysts of either Co or Mo are inactive for DRM under all the tested conditions due to their...
| Main Authors: | , , , , , |
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| Format: | Journal Article |
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RSC Publications
2018
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| Online Access: | http://purl.org/au-research/grants/arc/LP150101158 http://hdl.handle.net/20.500.11937/72770 |
| _version_ | 1848762837773582336 |
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| author | Nguyen, H. Pham, Gia Ran, R. Vagnoni, R. Pareek, Vishnu Liu, Shaomin |
| author_facet | Nguyen, H. Pham, Gia Ran, R. Vagnoni, R. Pareek, Vishnu Liu, Shaomin |
| author_sort | Nguyen, H. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | In this work, microwave (MW) irradiation was used to activate Co/Al2O3, Mo/Al2O3, and Co-Mo/Al2O3 catalysts for dry reforming of methane (DRM) reactions. Experimental results indicate that single metallic catalysts of either Co or Mo are inactive for DRM under all the tested conditions due to their limited MW-absorbing ability. In contrast, Co-Mo bimetallic catalysts supported by Al2O3 exhibit high catalytic activity due to the formation of a magnetodielectric Co0.82Mo0.18 alloy, which plays the dual role of a good MW acceptor and the provider of active centers for the DRM reaction. The MW power level required to activate such bimetallic catalysts for DRM is significantly dependent on the molar ratio between Co and Mo. The CoMo2 catalyst (with a molar ratio of 2.0 Co to 1.0 Mo) supported on Al2O3 exhibits the best catalytic performance, converting 80% CH4 and 93% CO2 to syngas at a ratio of H2/CO of 0.80 at the total volumetric hourly space velocity (VHSV) of 10 L g-1 h-1 and MW power of 200 W. As compared to the reported C-based catalysts, the Co-Mo/Al2O3 catalyst delivers more favorable stability over 16 time-on-stream (TOS) by virtue of its intrinsic ability to absorb MW without the inclusion of auxiliary MW acceptors. |
| first_indexed | 2025-11-14T10:53:55Z |
| format | Journal Article |
| id | curtin-20.500.11937-72770 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T10:53:55Z |
| publishDate | 2018 |
| publisher | RSC Publications |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-727702022-11-23T06:11:46Z Dry reforming of methane over Co–Mo/Al2O3 catalyst under low microwave power irradiation Nguyen, H. Pham, Gia Ran, R. Vagnoni, R. Pareek, Vishnu Liu, Shaomin In this work, microwave (MW) irradiation was used to activate Co/Al2O3, Mo/Al2O3, and Co-Mo/Al2O3 catalysts for dry reforming of methane (DRM) reactions. Experimental results indicate that single metallic catalysts of either Co or Mo are inactive for DRM under all the tested conditions due to their limited MW-absorbing ability. In contrast, Co-Mo bimetallic catalysts supported by Al2O3 exhibit high catalytic activity due to the formation of a magnetodielectric Co0.82Mo0.18 alloy, which plays the dual role of a good MW acceptor and the provider of active centers for the DRM reaction. The MW power level required to activate such bimetallic catalysts for DRM is significantly dependent on the molar ratio between Co and Mo. The CoMo2 catalyst (with a molar ratio of 2.0 Co to 1.0 Mo) supported on Al2O3 exhibits the best catalytic performance, converting 80% CH4 and 93% CO2 to syngas at a ratio of H2/CO of 0.80 at the total volumetric hourly space velocity (VHSV) of 10 L g-1 h-1 and MW power of 200 W. As compared to the reported C-based catalysts, the Co-Mo/Al2O3 catalyst delivers more favorable stability over 16 time-on-stream (TOS) by virtue of its intrinsic ability to absorb MW without the inclusion of auxiliary MW acceptors. 2018 Journal Article http://hdl.handle.net/20.500.11937/72770 10.1039/c8cy01601a http://purl.org/au-research/grants/arc/LP150101158 http://creativecommons.org/licenses/by/3.0/ RSC Publications fulltext |
| spellingShingle | Nguyen, H. Pham, Gia Ran, R. Vagnoni, R. Pareek, Vishnu Liu, Shaomin Dry reforming of methane over Co–Mo/Al2O3 catalyst under low microwave power irradiation |
| title | Dry reforming of methane over Co–Mo/Al2O3 catalyst under low microwave power irradiation |
| title_full | Dry reforming of methane over Co–Mo/Al2O3 catalyst under low microwave power irradiation |
| title_fullStr | Dry reforming of methane over Co–Mo/Al2O3 catalyst under low microwave power irradiation |
| title_full_unstemmed | Dry reforming of methane over Co–Mo/Al2O3 catalyst under low microwave power irradiation |
| title_short | Dry reforming of methane over Co–Mo/Al2O3 catalyst under low microwave power irradiation |
| title_sort | dry reforming of methane over co–mo/al2o3 catalyst under low microwave power irradiation |
| url | http://purl.org/au-research/grants/arc/LP150101158 http://hdl.handle.net/20.500.11937/72770 |