High-performance photocatalytic nonoxidative conversion of methane to ethane and hydrogen by heteroatoms-engineered TiO 2
文献类型：期刊论文
| 作者 | Wenqing Zhang4; Cenfeng Fu4; Jingxiang Low4; Delong Duan4; Jun Ma4 ; Wenbin Jiang4; Yihong Chen4; Hengjie Liu4; Zeming Qi4; Ran Long4
|
| 刊名 | Nature Communications
 |
| 卷号 | 13 |
| ISSN号 | 2041-1723 |
| 英文摘要 | Nonoxidative coupling of methane (NOCM) is a highly important process to simultaneously produce multicarbons and hydrogen. Although oxide-based photocatalysis opens opportunities for NOCM at mild condition, it suffers from unsatisfying selectivity and durability, due to overoxidation of CH 4 with lattice oxygen. Here, we propose a heteroatom engineering strategy for highly active, selective and durable photocatalytic NOCM. Demonstrated by commonly used TiO 2 photocatalyst, construction of Pd–O 4 in surface reduces contribution of O sites to valence band, overcoming the limitations. In contrast to state of the art, 94.3% selectivity is achieved for C 2 H 6 production at 0.91?mmol?g –1 h –1 along with stoichiometric H 2 production, approaching the level of thermocatalysis at relatively mild condition. As a benchmark, apparent quantum efficiency reaches 3.05% at 350?nm. Further elemental doping can elevate durability over 24?h by stabilizing lattice oxygen. This work provides new insights for high-performance photocatalytic NOCM by atomic engineering. |
| 语种 | 英语 |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/129505]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 作者单位 | 1.中国科学院 2.南京大学 3.中国科学院合肥物质科学研究院 4.中国科学技术大学 5.上海科技大学 |
| 推荐引用方式 GB/T 7714 | Wenqing Zhang,Cenfeng Fu,Jingxiang Low,et al. High-performance photocatalytic nonoxidative conversion of methane to ethane and hydrogen by heteroatoms-engineered TiO 2[J]. Nature Communications,13. |
| APA | Wenqing Zhang.,Cenfeng Fu.,Jingxiang Low.,Delong Duan.,Jun Ma.,...&Yujie Xiong. |
| MLA | Wenqing Zhang,et al."High-performance photocatalytic nonoxidative conversion of methane to ethane and hydrogen by heteroatoms-engineered TiO 2".Nature Communications 13 |
入库方式： OAI收割
来源：合肥物质科学研究院
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。