Fluorine Passivated Perovskite SrNbO2N Photocatalyst for Robust Sunlight-Driven Water Splitting
文献类型：期刊论文
| 作者 | Yu, Jinxing1,2; Huang, Jie3; Wang, Ran1,2; Konysheva, Elena Yu4; Liu, Gang3; Xu, Xiaoxiang1,2 |
| 刊名 | ADVANCED ENERGY MATERIALS
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| 出版日期 | 2024-12-05 |
| 页码 | 12 |
| 关键词 | passivation photocatalyst photoelectrochemistry SrNbO2N water splitting |
| ISSN号 | 1614-6832 |
| DOI | 10.1002/aenm.202404811 |
| 通讯作者 | Liu, Gang(gangliu@imr.ac.cn) ; Xu, Xiaoxiang(xxxu@tongji.edu.cn) |
| 英文摘要 | SrNbO2N is a promising narrow-bandgap semiconductor for sunlight-driven water splitting but is generally subject to insufficient photocarrier separation and severe photocorrosion. Here, the targeted single-crystalline SrNbO2N nanobelts are passivated by consecutive annealing in O-2 and N-2/NH4F to approach the right N/O ratio (1/2) and anion content (O + N = 60 at%). The passivation measures lead to both a low concentration (approximate to 2.2 x 10(15) cm(-3)) of defects including V-O, Nb3+, Nb4+ for efficient photocarrier separation and unique fluorine-rich, nitrogen-poor surface with low surface energy for high stability against photocorrosion. Notably, the passivated SrNbO2N nanobelts deliver the highest values of photocurrent density of 4.5 mA cm(-2) at 1.23 V versus RHE and stable photocatalytic (PC) Z-scheme overall water splitting activity of approximate to 10 mu mol h(-1) H-2 evolution under AM 1.5G illumination when used as photoanode materials for photoelectrochemical (PEC) water oxidation and the photocatalytic O-2-evolution moiety, respectively. These findings provide not only an effective guideline to upgrade the activity and stability of SrNbO2N but also fresh mechanistic insights into the role of passivation measures. |
| 资助项目 | National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities ; National Key Research and Development Program of China[2021YFA1500800] ; New Cornerstone Science Foundation through the XPLORER PRIZE ; [52172225] ; [52332009] ; [51825204] |
| WOS研究方向 | Chemistry ; Energy & Fuels ; Materials Science ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:001371172900001 |
| 出版者 | WILEY-V C H VERLAG GMBH |
| 资助机构 | National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities ; National Key Research and Development Program of China ; New Cornerstone Science Foundation through the XPLORER PRIZE |
| 源URL |  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Liu, Gang; Xu, Xiaoxiang |
| 作者单位 | 1.Tongji Univ, Putuo Peoples Hosp, Clin & Cent Lab, Shanghai 200060, Peoples R China 2.Tongji Univ, Sch Chem Sci & Engn, Shanghai Key Lab Chem Assessment & Sustainabil, Shanghai 200092, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Peoples R China 4.Russian Acad Sci, Ural Branch, Inst Met, Ekaterinburg 620016, Russia |
| 推荐引用方式 GB/T 7714 | Yu, Jinxing,Huang, Jie,Wang, Ran,et al. Fluorine Passivated Perovskite SrNbO2N Photocatalyst for Robust Sunlight-Driven Water Splitting[J]. ADVANCED ENERGY MATERIALS,2024:12. |
| APA | Yu, Jinxing,Huang, Jie,Wang, Ran,Konysheva, Elena Yu,Liu, Gang,&Xu, Xiaoxiang.(2024).Fluorine Passivated Perovskite SrNbO2N Photocatalyst for Robust Sunlight-Driven Water Splitting.ADVANCED ENERGY MATERIALS,12. |
| MLA | Yu, Jinxing,et al."Fluorine Passivated Perovskite SrNbO2N Photocatalyst for Robust Sunlight-Driven Water Splitting".ADVANCED ENERGY MATERIALS (2024):12. |
入库方式： OAI收割
来源：金属研究所
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