中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 广州能源研究所
  3. 中国科学院广州能源研究所
Copper oxide nanoparticles confined in TiO2 nanotubes for the water-gas shift reaction: promotional effect of potassium

文献类型：期刊论文

作者Chen, Yaqian1,2; Li, Juan2; Li, Xiangnan2; Luo, Fengying1,2; Wang, Zeyu1,2; Wu, Liangpeng2; Li, Xinjun2
刊名JOURNAL OF MATERIALS RESEARCH
出版日期2021-10-29
页码10
ISSN号0884-2914
关键词K Cu Nanostructure Defects Water-gas shift reaction
DOI10.1557/s43578-021-00416-x
通讯作者Li, Juan(lijuan@ms.giec.ac.cn) ; Li, Xinjun(lixj@ms.giec.ac.cn)
英文摘要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
WOS关键词CATALYSTS ; HYDROGEN ; SUPPORT
资助项目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研究方向Materials Science
语种英语
出版者SPRINGER HEIDELBERG
WOS记录号WOS:000712722000001
资助机构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
源URL[http://ir.giec.ac.cn/handle/344007/35165]  
专题中国科学院广州能源研究所
通讯作者Li, Juan; Li, Xinjun
作者单位1.Univ Chinese Acad Sci, Coll Mat Sci & Optoelect Technol, Beijing 100049, Peoples R China
2.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China
推荐引用方式
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.

入库方式： OAI收割

来源：广州能源研究所

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。