Knowledge Management System Of Guangzhou Institute of Energy Conversion, CAS
| Copper oxide nanoparticles confined in TiO2 nanotubes for the water-gas shift reaction: promotional effect of potassium | |
Chen, Yaqian1,2; Li, Juan1 ; Li, Xiangnan1; Luo, Fengying1,2; Wang, Zeyu1,2; Wu, Liangpeng1; Li, Xinjun1
| |
| 2021-10-29 | |
| Source Publication | JOURNAL OF MATERIALS RESEARCH
 |
| ISSN | 0884-2914 |
| Pages | 10 |
| Corresponding Author | Li, Juan(lijuan@ms.giec.ac.cn) ; Li, Xinjun(lixj@ms.giec.ac.cn) |
| Abstract | Previous work showed that the copper oxide nanoparticles confined in titania nanotubes (Cu-in-TiO2NT) can effectively enhance the water-gas shift (WGS) activity. The WGS activity is directly related to the concentration of active copper species and oxygen vacancies (O-v). The addition of potassium is found to enhance WGS activity of copper catalysts to some extent. Herein, the K-promoted copper oxide (2 wt% Cu) nanoparticles confined in TiO2 nanotubes catalysts (Cu-in-K/TiO2NT) with different potassium contents were synthesized and investigated for the WGS reaction. The K-promoted catalysts exhibit the enhanced WGS activity. Especially, the Cu-in-K-20/TiO2NT with the molar ratio of K/Cu = 20 displays twofold higher WGS activity compared with the Cu-in-TiO2NT. XRD, Raman, XPS, H-2-TPR and in situ DRIFTS have verified that the addition of appropriate potassium can make active copper species bound with oxygen of the TiO2, leading to a partial reduction of TiO2 to TiO2-x, which is beneficial to form Cu-O-v-Ti site for the WGS reaction. Graphic abstract |
| Keyword | K Cu Nanostructure Defects Water-gas shift reaction |
| DOI | 10.1557/s43578-021-00416-x |
| WOS Keyword | CATALYSTS ; HYDROGEN ; SUPPORT |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | Natural Science Foundation of Guangdong Province, China[2021A1515010445] ; National Natural Science Foundation of China[51802305] ; Science and Technology Program of Guangzhou, China[202102020402] ; Analytical & Testing Center, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, China |
| WOS Research Area | Materials Science |
| Funding Organization | Natural Science Foundation of Guangdong Province, China ; National Natural Science Foundation of China ; Science and Technology Program of Guangzhou, China ; Analytical & Testing Center, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, China |
| WOS Subject | Materials Science, Multidisciplinary |
| WOS ID | WOS:000712722000001 |
| Publisher | SPRINGER HEIDELBERG |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.giec.ac.cn/handle/344007/35166 |
| Collection | 中国科学院广州能源研究所 |
| Corresponding Author | Li, Juan; Li, Xinjun |
| Affiliation | 1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China 2.Univ Chinese Acad Sci, Coll Mat Sci & Optoelect Technol, Beijing 100049, Peoples R China |
| First Author Affilication | GuangZhou Institute of Energy Conversion,Chinese Academy of Sciences |
| Recommended Citation GB/T 7714 | Chen, Yaqian,Li, Juan,Li, Xiangnan,et al. Copper oxide nanoparticles confined in TiO2 nanotubes for the water-gas shift reaction: promotional effect of potassium[J]. JOURNAL OF MATERIALS RESEARCH,2021:10. |
| APA | Chen, Yaqian.,Li, Juan.,Li, Xiangnan.,Luo, Fengying.,Wang, Zeyu.,...&Li, Xinjun.(2021).Copper oxide nanoparticles confined in TiO2 nanotubes for the water-gas shift reaction: promotional effect of potassium.JOURNAL OF MATERIALS RESEARCH,10. |
| MLA | Chen, Yaqian,et al."Copper oxide nanoparticles confined in TiO2 nanotubes for the water-gas shift reaction: promotional effect of potassium".JOURNAL OF MATERIALS RESEARCH (2021):10. |
| Files in This Item: | There are no files associated with this item. | |||||
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment