IHEP OpenIR  > 多学科研究中心
Morphologic effects of nano CeO2-TiO2 on the performance of Au/CeO2-TiO2 catalysts in low-temperature CO oxidation
Li, SN; Zhu, HQ; Qin, ZF; Wang, GF; Zhang, YG; Wu, ZW; Li, ZK; Chen, G; Dong, WW; Wu, ZH; Zheng, LR; Zhang, J; Hu, TD; Wang, JG;吴忠华; Zheng LR(郑黎荣); Zhang J(张静); Hu TD(胡天斗)
2014
发表期刊APPLIED CATALYSIS B-ENVIRONMENTAL
卷号144页码:498-506
摘要CeO2-TiO2 composite nanorods and nanoparticles were synthesized by hydrothermal and co-precipitation methods, respectively; with the CeO2-TiO2 composite of different morphologies as supports, Au/CeO2-TiO2 catalysts were prepared by the colloidal deposition method and used in CO oxidation at ambient temperature. N-2 sorption, XRD, HRTEM, H-2-TPR, XPS and XAS characterizations were used to clarify the relationship between the morphologic properties of CeO2-TiO2 and the catalytic performance of Au/CeO2-TiO2. HRTEM results show that Au/CeO2-TiO2 nanorods are dominated by CeO2 nanocrystals with (1 1 0) and (1 0 0) facets, while the Au/CeO2-TiO2 nanoparticles mainly expose (1 1 1) planes. XPS and XAS results reveal that both Au/CeO2-TiO2 nanorods and Au/CeO2-TiO2 nanoparticles are similar in the state of gold species. H-2-TPR results indicate that the presence of Au strongly promotes the reduction of CeO2 in the Au/CeO2-TiO2 nanorods. The catalytic activity of Au/CeO2-TiO2 in CO oxidation is strongly related to the morphology of CeO2-TiO2; the CeO2-TiO2 nanorods as support endow the Au/CeO2-TiO2 catalyst with much higher activity than the CeO2-TiO2 nanoparticles. The (1 1 0) and (1 0 0) facets of CeO2 dominated in the Au/CeO2-TiO2 nanorods are able to promote the oxygen migration and gold dispersion, which may then evidently enhance the redox capacity and catalytic activity of the Au/CeO2-TiO2 nanorods in CO oxidation at low temperature. (C) 2013 Elsevier B.V. All rights reserved.
关键词Morphology Ceria Titania Gold CO oxidation
学科领域Chemistry; Engineering
DOI10.1016/j.apcatb.2013.07.049
收录类别SCI
WOS记录号WOS:000327686200059
引用统计
被引频次:44[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/224817
专题多学科研究中心
推荐引用方式
GB/T 7714
Li, SN,Zhu, HQ,Qin, ZF,et al. Morphologic effects of nano CeO2-TiO2 on the performance of Au/CeO2-TiO2 catalysts in low-temperature CO oxidation[J]. APPLIED CATALYSIS B-ENVIRONMENTAL,2014,144:498-506.
APA Li, SN.,Zhu, HQ.,Qin, ZF.,Wang, GF.,Zhang, YG.,...&胡天斗.(2014).Morphologic effects of nano CeO2-TiO2 on the performance of Au/CeO2-TiO2 catalysts in low-temperature CO oxidation.APPLIED CATALYSIS B-ENVIRONMENTAL,144,498-506.
MLA Li, SN,et al."Morphologic effects of nano CeO2-TiO2 on the performance of Au/CeO2-TiO2 catalysts in low-temperature CO oxidation".APPLIED CATALYSIS B-ENVIRONMENTAL 144(2014):498-506.
条目包含的文件
文件名称/大小 文献类型 版本类型 开放类型 使用许可
10689.pdf(1436KB)期刊论文作者接受稿开放获取CC BY-NC-SA浏览 请求全文
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Li, SN]的文章
[Zhu, HQ]的文章
[Qin, ZF]的文章
百度学术
百度学术中相似的文章
[Li, SN]的文章
[Zhu, HQ]的文章
[Qin, ZF]的文章
必应学术
必应学术中相似的文章
[Li, SN]的文章
[Zhu, HQ]的文章
[Qin, ZF]的文章
相关权益政策
暂无数据
收藏/分享
文件名: 10689.pdf
格式: Adobe PDF
所有评论 (0)
暂无评论
 

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。