The Flower-like Co<sub>3</sub>O<sub>4</sub> Hierarchical Microspheres for Methane Catalytic Oxidation
The development of non-noble Co<sub>3</sub>O<sub>4</sub> catalysts exposing highly active crystal planes to low-temperature methane oxidation is still a challenge. Hence, a facile solvothermal method was adapted to construe flower-like Co<sub>3</sub>O<sub>4&...
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MDPI AG
2022-04-01
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| Series: | Inorganics |
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| Online Access: | https://www.mdpi.com/2304-6740/10/4/49 |
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| author | Changpeng Lv Dan Du Chao Wang Yingyue Qin Jinlong Ge Yansong Han Junjie Zhu Muxin Liu |
| author_facet | Changpeng Lv Dan Du Chao Wang Yingyue Qin Jinlong Ge Yansong Han Junjie Zhu Muxin Liu |
| author_sort | Changpeng Lv |
| collection | DOAJ |
| description | The development of non-noble Co<sub>3</sub>O<sub>4</sub> catalysts exposing highly active crystal planes to low-temperature methane oxidation is still a challenge. Hence, a facile solvothermal method was adapted to construe flower-like Co<sub>3</sub>O<sub>4</sub> hierarchical microspheres (Co<sub>3</sub>O<sub>4</sub>-FL), which are composed of nanosheets with dominantly exposed {112} crystal planes. The flower-like hierarchical structure not only promotes the desorption of high levels of active surface oxygen and enhances reducibility, but also facilitates an increase in lattice oxygen as the active species. As a result, Co<sub>3</sub>O<sub>4</sub>-FL catalysts offer improved methane oxidation, with a half methane conversion temperature (<i>T</i><sub>50</sub>) of 380 °C (21,000 mL g<sup>−1</sup> h<sup>−1</sup>), which is much lower than that of commercial Co<sub>3</sub>O<sub>4</sub> catalysts (Co<sub>3</sub>O<sub>4</sub>-C). This study will provide guidance for non-noble metal catalyst design and preparation for methane oxidation and other oxidative reactions. |
| first_indexed | 2024-03-09T10:34:02Z |
| format | Article |
| id | doaj.art-5c6019abedd8468789b8717fd5f1672d |
| institution | Directory Open Access Journal |
| issn | 2304-6740 |
| language | English |
| last_indexed | 2024-03-09T10:34:02Z |
| publishDate | 2022-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Inorganics |
| spelling | doaj.art-5c6019abedd8468789b8717fd5f1672d2023-12-01T21:05:31ZengMDPI AGInorganics2304-67402022-04-011044910.3390/inorganics10040049The Flower-like Co<sub>3</sub>O<sub>4</sub> Hierarchical Microspheres for Methane Catalytic OxidationChangpeng Lv0Dan Du1Chao Wang2Yingyue Qin3Jinlong Ge4Yansong Han5Junjie Zhu6Muxin Liu7Anhui Provincial Engineering Laboratory of Silicon-Based Materials, School of Materials and Chemical Engineering, Bengbu University, Bengbu 233030, ChinaYankuang Technology Co., Ltd., Shandong Energy Group Co., Ltd., Jinan 250101, ChinaYankuang Technology Co., Ltd., Shandong Energy Group Co., Ltd., Jinan 250101, ChinaAnhui Provincial Engineering Laboratory of Silicon-Based Materials, School of Materials and Chemical Engineering, Bengbu University, Bengbu 233030, ChinaAnhui Provincial Engineering Laboratory of Silicon-Based Materials, School of Materials and Chemical Engineering, Bengbu University, Bengbu 233030, ChinaAnhui Provincial Engineering Laboratory of Silicon-Based Materials, School of Materials and Chemical Engineering, Bengbu University, Bengbu 233030, ChinaAnhui Provincial Engineering Laboratory of Silicon-Based Materials, School of Materials and Chemical Engineering, Bengbu University, Bengbu 233030, ChinaAnhui Provincial Engineering Laboratory of Silicon-Based Materials, School of Materials and Chemical Engineering, Bengbu University, Bengbu 233030, ChinaThe development of non-noble Co<sub>3</sub>O<sub>4</sub> catalysts exposing highly active crystal planes to low-temperature methane oxidation is still a challenge. Hence, a facile solvothermal method was adapted to construe flower-like Co<sub>3</sub>O<sub>4</sub> hierarchical microspheres (Co<sub>3</sub>O<sub>4</sub>-FL), which are composed of nanosheets with dominantly exposed {112} crystal planes. The flower-like hierarchical structure not only promotes the desorption of high levels of active surface oxygen and enhances reducibility, but also facilitates an increase in lattice oxygen as the active species. As a result, Co<sub>3</sub>O<sub>4</sub>-FL catalysts offer improved methane oxidation, with a half methane conversion temperature (<i>T</i><sub>50</sub>) of 380 °C (21,000 mL g<sup>−1</sup> h<sup>−1</sup>), which is much lower than that of commercial Co<sub>3</sub>O<sub>4</sub> catalysts (Co<sub>3</sub>O<sub>4</sub>-C). This study will provide guidance for non-noble metal catalyst design and preparation for methane oxidation and other oxidative reactions.https://www.mdpi.com/2304-6740/10/4/49flower-liketricobalt tetroxidemethaneoxidation |
| spellingShingle | Changpeng Lv Dan Du Chao Wang Yingyue Qin Jinlong Ge Yansong Han Junjie Zhu Muxin Liu The Flower-like Co<sub>3</sub>O<sub>4</sub> Hierarchical Microspheres for Methane Catalytic Oxidation Inorganics flower-like tricobalt tetroxide methane oxidation |
| title | The Flower-like Co<sub>3</sub>O<sub>4</sub> Hierarchical Microspheres for Methane Catalytic Oxidation |
| title_full | The Flower-like Co<sub>3</sub>O<sub>4</sub> Hierarchical Microspheres for Methane Catalytic Oxidation |
| title_fullStr | The Flower-like Co<sub>3</sub>O<sub>4</sub> Hierarchical Microspheres for Methane Catalytic Oxidation |
| title_full_unstemmed | The Flower-like Co<sub>3</sub>O<sub>4</sub> Hierarchical Microspheres for Methane Catalytic Oxidation |
| title_short | The Flower-like Co<sub>3</sub>O<sub>4</sub> Hierarchical Microspheres for Methane Catalytic Oxidation |
| title_sort | flower like co sub 3 sub o sub 4 sub hierarchical microspheres for methane catalytic oxidation |
| topic | flower-like tricobalt tetroxide methane oxidation |
| url | https://www.mdpi.com/2304-6740/10/4/49 |
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