| 第一作者： | Ge, YZ (Ge, Yuanzheng); He, T (He, Tao); Wang, ZQ (Wang, Zhiqi); Han, DZ (Han, Dezhi); Li, JQ (Li, Jianqing); Wu, JL (Wu, Jingli); Wu, JH (Wu, Jinhu); |
|---|---|
| 联系作者： | Ge, YZ (Ge, Yuanzheng); He, T (He, Tao); Wang, ZQ (Wang, Zhiqi); Han, DZ (Han, Dezhi); Li, JQ (Li, Jianqing); Wu, JL (Wu, Jingli); Wu, JH (Wu, Jinhu); |
| 发表年度： | 2021 |
| 页： | - |
| 摘要： | The main challenge of chemical looping dry reforming of methane (CLDRM) is the development of a high-performance redox material. In this study, V2O3 was proved to be a unique redox material possessing high oxygen storage capacity (421.6 mg/g-V2O3, CH4 consumption base) and strong carbon-deposition suppressing capability. It can be reduced to carbide by CH4, and the carbide can be reoxidized to V2O3 with CO2. Based on this redox cycle, CH4 conversion with 99.5% CO selectivity coupled with efficient CO2 splitting to CO was realized successively. However, the CH4 conversion over pristine V2O3 is low (<50%) and not stable, therefore catalytic activation of C-H bonds combined with structural modification of V2O3 was carried out to accelerate the stoichiometric reactions and improve the redox stability. Finally, a maximum CH4 conversion of 81.7% with stable performance during cycles was reached, and further investigation confirmed the series reaction mechanism and identified the rate-controlling step. |
| 刊物名称： | AICHE JOURNAL |
| 影响因子： | 3.463 |
| 全文链接： | https://aiche.onlinelibrary.wiley.com/doi/10.1002/aic.16772 |
