Mild generation of surface oxygen vacancies on CeO(2)for improved CO(2)photoreduction activity
文献类型：期刊论文
| 作者 | Wang, M; Shen, M; Jin, XX; Tian, JJ; Zhou, YJ; Shao, YR; Zhang, LX; Li, YS; Shi, JL |
| 刊名 | NANOSCALE
 |
| 出版日期 | 2020-06-21 |
| 期号 | 23页码:12374 |
| ISSN号 | 2040-3364 |
| DOI | 10.1039/d0nr00717j |
| 文献子类 | Article |
| 英文摘要 | The vacancy defects of semiconductor photocatalysts play key roles in enhancing their photocatalytic CO(2)reduction activity. In this work, CeO(2)was chosen as a model catalyst and oxygen vacancies were introduced on its surface by a facile and mild oxalic acid treatment followed by moderate heating in N-2. Such a treatment resulted in a much increased ratio of Ce3+/Ce(4+)in CeO2, and the oxygen vacancy-enriched CeO(2)showed remarkably enhanced photocatalytic activity in CO(2)reduction, with CO being the dominant reduction product, whose yield was about 8 times that on the pristine CeO2.In situFT-IR spectra showed that the abundant oxygen vacancies substantially improved the CO(2)adsorption/activation on the surface of CeO2, which facilitated the subsequent reduction of CO2. However, the carbonates strongly adsorbed on the photocatalyst surface might be the main obstacle to maintaining the high CO(2)reduction activity and stability of CeO(2)with O vacancies. |
| WOS关键词 | CO2 PHOTOREDUCTION ; OXIDATION ; CERIA ; EFFICIENT ; METHANOL |
| WOS研究方向 | Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics |
| 语种 | 英语 |
| 出版者 | ROYAL SOC CHEMISTRY |
| 源URL | [http://ir.sic.ac.cn/handle/331005/27965]  |
| 专题 | 中国科学院上海硅酸盐研究所 |
| 推荐引用方式 GB/T 7714 | Wang, M,Shen, M,Jin, XX,et al. Mild generation of surface oxygen vacancies on CeO(2)for improved CO(2)photoreduction activity[J]. NANOSCALE,2020(23):12374. |
| APA | Wang, M.,Shen, M.,Jin, XX.,Tian, JJ.,Zhou, YJ.,...&Shi, JL.(2020).Mild generation of surface oxygen vacancies on CeO(2)for improved CO(2)photoreduction activity.NANOSCALE(23),12374. |
| MLA | Wang, M,et al."Mild generation of surface oxygen vacancies on CeO(2)for improved CO(2)photoreduction activity".NANOSCALE .23(2020):12374. |
入库方式： OAI收割
来源：上海硅酸盐研究所
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