Aqueous-Phase Reforming of Biogas Slurry over MOF-Derived α-MoO<sub>3</sub> Catalyst for Producing Renewable Hydrogen: Effect of Fermenting Time
Aqueous-phase reforming (APR) is an alternative method for treating and utilizing biogas slurry (BS) to produce renewable hydrogen from organic oxygen-containing wastewater. Considering the fluctuating characteristics of BS with changes in the degree of fermentation, developing an efficient catalyst...
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MDPI AG
2024-11-01
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| Series: | Molecules |
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| Online Access: | https://www.mdpi.com/1420-3049/29/23/5565 |
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| author | Qingguo Bu Jian Wang Yuxuan Chen Junyu Tao Akash Kumar Beibei Yan Guanyi Chen |
| author_facet | Qingguo Bu Jian Wang Yuxuan Chen Junyu Tao Akash Kumar Beibei Yan Guanyi Chen |
| author_sort | Qingguo Bu |
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| description | Aqueous-phase reforming (APR) is an alternative method for treating and utilizing biogas slurry (BS) to produce renewable hydrogen from organic oxygen-containing wastewater. Considering the fluctuating characteristics of BS with changes in the degree of fermentation, developing an efficient catalyst is a major concern for the APR of BS. The novel catalyst based on molybdenum-based metal–organic-framework-derived oxides (Mo-MOF-derived α-MoO<sub>3</sub>) was reported in this study. The results indicated that the variables (e.g., pH, organic load, and salinity) of BS corresponded to the fermentation times and exhibited decreasing trends after APR under the reaction conditions of 225 °C and 30 min. Decarboxylation was identified as the main side reaction in the APR of BS over the catalyst. An optimal yield of 2.17 mL<sub>hydrogen</sub>/mL<sub>BS</sub> was achieved when BS was obtained from 6 days of fermentation. Finally, the Mo-MOF-derived α-MoO<sub>3</sub> catalyst was obtained from the greater specific surface area of MOFs. The catalyst had a weaker acidity than the initial α-MoO<sub>3</sub>, making it more preferred for facilitating the APR of BS. |
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| institution | Kabale University |
| issn | 1420-3049 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | MDPI AG |
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| series | Molecules |
| spelling | doaj-art-1dcb2d0ed8fb4853a8540ca03fe923dd2024-12-13T16:28:18ZengMDPI AGMolecules1420-30492024-11-012923556510.3390/molecules29235565Aqueous-Phase Reforming of Biogas Slurry over MOF-Derived α-MoO<sub>3</sub> Catalyst for Producing Renewable Hydrogen: Effect of Fermenting TimeQingguo Bu0Jian Wang1Yuxuan Chen2Junyu Tao3Akash Kumar4Beibei Yan5Guanyi Chen6School of Environmental Science and Engineering, Tianjin University, Tianjin 300350, ChinaSchool of Energy and Environment, Shenyang Aerospace University, Shenyang 110036, ChinaSchool of Environmental Science and Engineering, Tianjin University, Tianjin 300350, ChinaSchool of Mechanical Engineering, Tianjin University of Commerce, Tianjin 300134, ChinaSchool of Environmental Science and Engineering, Tianjin University, Tianjin 300350, ChinaSchool of Environmental Science and Engineering, Tianjin University, Tianjin 300350, ChinaSchool of Mechanical Engineering, Tianjin University of Commerce, Tianjin 300134, ChinaAqueous-phase reforming (APR) is an alternative method for treating and utilizing biogas slurry (BS) to produce renewable hydrogen from organic oxygen-containing wastewater. Considering the fluctuating characteristics of BS with changes in the degree of fermentation, developing an efficient catalyst is a major concern for the APR of BS. The novel catalyst based on molybdenum-based metal–organic-framework-derived oxides (Mo-MOF-derived α-MoO<sub>3</sub>) was reported in this study. The results indicated that the variables (e.g., pH, organic load, and salinity) of BS corresponded to the fermentation times and exhibited decreasing trends after APR under the reaction conditions of 225 °C and 30 min. Decarboxylation was identified as the main side reaction in the APR of BS over the catalyst. An optimal yield of 2.17 mL<sub>hydrogen</sub>/mL<sub>BS</sub> was achieved when BS was obtained from 6 days of fermentation. Finally, the Mo-MOF-derived α-MoO<sub>3</sub> catalyst was obtained from the greater specific surface area of MOFs. The catalyst had a weaker acidity than the initial α-MoO<sub>3</sub>, making it more preferred for facilitating the APR of BS.https://www.mdpi.com/1420-3049/29/23/5565aqueous-phase reformingMOF derivativesbiogas slurryhydrogenwastewater treatment |
| spellingShingle | Qingguo Bu Jian Wang Yuxuan Chen Junyu Tao Akash Kumar Beibei Yan Guanyi Chen Aqueous-Phase Reforming of Biogas Slurry over MOF-Derived α-MoO<sub>3</sub> Catalyst for Producing Renewable Hydrogen: Effect of Fermenting Time Molecules aqueous-phase reforming MOF derivatives biogas slurry hydrogen wastewater treatment |
| title | Aqueous-Phase Reforming of Biogas Slurry over MOF-Derived α-MoO<sub>3</sub> Catalyst for Producing Renewable Hydrogen: Effect of Fermenting Time |
| title_full | Aqueous-Phase Reforming of Biogas Slurry over MOF-Derived α-MoO<sub>3</sub> Catalyst for Producing Renewable Hydrogen: Effect of Fermenting Time |
| title_fullStr | Aqueous-Phase Reforming of Biogas Slurry over MOF-Derived α-MoO<sub>3</sub> Catalyst for Producing Renewable Hydrogen: Effect of Fermenting Time |
| title_full_unstemmed | Aqueous-Phase Reforming of Biogas Slurry over MOF-Derived α-MoO<sub>3</sub> Catalyst for Producing Renewable Hydrogen: Effect of Fermenting Time |
| title_short | Aqueous-Phase Reforming of Biogas Slurry over MOF-Derived α-MoO<sub>3</sub> Catalyst for Producing Renewable Hydrogen: Effect of Fermenting Time |
| title_sort | aqueous phase reforming of biogas slurry over mof derived α moo sub 3 sub catalyst for producing renewable hydrogen effect of fermenting time |
| topic | aqueous-phase reforming MOF derivatives biogas slurry hydrogen wastewater treatment |
| url | https://www.mdpi.com/1420-3049/29/23/5565 |
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