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学科主题: 物理化学
题名: Tuning the shape of ceria nanomaterials for catalytic applications
作者: Ta Na1;  Liu (Jimmy) Jingyue1, 2;  Shen Wenjie1
通讯作者: 申文杰
关键词: Cerium dioxide ;  Shape control ;  Nanorod ;  Nanotube ;  Nanocube ;  Crystal facet ;  Gold-ceria interface ;  Nanocatalysis
刊名: CHINESE JOURNAL OF CATALYSIS
发表日期: 2013-05-01
DOI: 10.1016/S1872-2067(12)60573-7
卷: 34, 期:5, 页:838-850
收录类别: SCI
合作性质: 
文章类型: Review
部门归属: 5,DNL20
项目归属: 501,DNL2002
产权排名: 待补充
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Applied ;  Chemistry, Physical ;  Engineering, Chemical
资助者: 1,1
研究领域[WOS]: Chemistry ;  Engineering
英文摘要: The design and fabrication of catalytic materials is a key issue in heterogeneous catalysis to achieve desired performance. Traditionally, the main theme is to reduce the size of the catalyst particles as small as possible for increasing the number of active sites. In recent years, the rapid advancement in materials science has enabled us to fabricate catalyst particles with tunable shape at nanometer level. Through morphology control of nanoparticles by exposing highly reactive crystal planes, their catalytic properties can be drastically enhanced. Therefore, both size modulation and shape control of catalyst nanoparticles can be achieved independently or synergistically to optimize their catalytic behavior. We highlight, in this review, the recent progress in shape control of CeO2 materials that are widely used as crucial components or structural and electronic promoters in heterogeneous catalysts. We first summarize the major synthetic strategies and characteristics of shape-controlled CeO2 nanomaterials. We then survey morphology-dependent nanocatalysis of CeO2 and Au-CeO2 catalysts. We understand now that the enhanced catalytic property of the Au-CeO2 system is closely related to the unique interaction between the gold nanoparticles and the ceria support; such an interaction originates from the particular shape of ceria, especially the exposed facets. Finally, we present our understanding of the morphology-dependent nanocatalysis and provide our perspectives on their future potential and development. The fundamental understanding of the nature of the intrinsic active sites of the shape-tunable ceria nanostructures, enclosed by reactive crystal planes/facets with unique properties, is expected to provide highly efficient nanocatalysts for practical applications. (C) 2013, Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. All rights reserved.
关键词[WOS]: GAS SHIFT REACTION ;  AU NANO-PARTICLES ;  LOW-TEMPERATURE OXIDATION ;  TEMPLATE-FREE SYNTHESIS ;  CO OXIDATION ;  GOLD NANOPARTICLES ;  CEO2 NANOTUBES ;  CARBON-MONOXIDE ;  HYDROTHERMAL SYNTHESIS ;  FACILE SYNTHESIS
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000318744600004
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/119300
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Liaoning, Peoples R China
2.Arizona State Univ, Dept Phys, Tempe, AZ 85287 USA

Recommended Citation:
Ta Na,Liu ,Shen Wenjie. Tuning the shape of ceria nanomaterials for catalytic applications[J]. CHINESE JOURNAL OF CATALYSIS,2013,34(5):838-850.
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