Reversible structural transformation of FeOx nanostructures on Pt under cycling redox conditions and its effect on oxidation catalysis
文献类型：期刊论文
| 作者 | Fu, Qiang1; Yao, Yunxi1; Guo, Xiaoguang1; Wei, Mingming1; Ning, Yanxiao1; Liu, Hongyang1,2; Yang, Fan1; Liu, Zhi3; Bao, Xinhe1 |
| 刊名 | physical chemistry chemical physics
 |
| 出版日期 | 2013 |
| 卷号 | 15期号:35页码:14708-14714 |
| 产权排序 | 待补充 |
| 通讯作者 | 傅强 ; 包信和 |
| 合作状况 | 英 |
| 英文摘要 | understanding dynamic changes of catalytically active nanostructures under reaction conditions is a pivotal challenge in catalysis research, which has been extensively addressed in metal nanoparticles but is less explored in supported oxide nanocatalysts. here, structural changes of iron oxide (feox) nanostructures supported on pt in a gaseous environment were examined by scanning tunneling microscopy, ambient pressure x-ray photoelectron spectroscopy, and in situ x-ray absorption spectroscopy using both model systems and real catalysts. o-fe (feo) bilayer nanostructures can be stabilized on pt surfaces in reductive environments such as vacuum conditions and h-2-rich reaction gas, which are highly active for low temperature co oxidation. in contrast, exposure to h-2-free oxidative gases produces a less active o-fe-o (feo2) trilayer structure. reversible transformation between the feo bilayer and feo2 trilayer structures can be achieved under alternating reduction and oxidation conditions, leading to oscillation in the catalytic oxidation performance. |
| WOS标题词 | science & technology ; physical sciences |
| 学科主题 | 物理化学 |
| 类目[WOS] | chemistry, physical ; physics, atomic, molecular & chemical |
| 研究领域[WOS] | chemistry ; physics |
| 关键词[WOS] | temperature co oxidation ; oxide-films ; photoelectron-spectroscopy ; ferrous centers ; pt(111) surface ; in-situ ; nanoparticles ; chemistry ; au(111) ; growth |
| 收录类别 | SCI |
| 资助信息 | 1，1 |
| 原文出处 | 14714 |
| 语种 | 英语 |
| WOS记录号 | WOS:000323196800018 |
| 公开日期 | 2014-09-11 |
| 源URL | [http://159.226.238.44/handle/321008/119185]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 作者单位 | 1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 3.Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Adv Light Source, Berkeley, CA 94720 USA |
| 推荐引用方式 GB/T 7714 | Fu, Qiang,Yao, Yunxi,Guo, Xiaoguang,et al. Reversible structural transformation of FeOx nanostructures on Pt under cycling redox conditions and its effect on oxidation catalysis[J]. physical chemistry chemical physics,2013,15(35):14708-14714. |
| APA | Fu, Qiang.,Yao, Yunxi.,Guo, Xiaoguang.,Wei, Mingming.,Ning, Yanxiao.,...&Bao, Xinhe.(2013).Reversible structural transformation of FeOx nanostructures on Pt under cycling redox conditions and its effect on oxidation catalysis.physical chemistry chemical physics,15(35),14708-14714. |
| MLA | Fu, Qiang,et al."Reversible structural transformation of FeOx nanostructures on Pt under cycling redox conditions and its effect on oxidation catalysis".physical chemistry chemical physics 15.35(2013):14708-14714. |
入库方式： OAI收割
来源：大连化学物理研究所
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。