DICP OpenIR
Toward Fundamentals of Confined Catalysis in Carbon Nanotubes
Xiao, Jianping; Pan, Xiulian; Guo, Shujing; Ren, Pengju; Bao, Xinhe
刊名JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
2015-01-14
DOI10.1021/ja511498s
137期:1页:477-482
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Physical Sciences
类目[WOS]Chemistry, Multidisciplinary
研究领域[WOS]Chemistry
关键词[WOS]METAL-ORGANIC FRAMEWORK ; EVANS-POLANYI RELATION ; HETEROGENEOUS CATALYSIS ; RU NANOPARTICLES ; VOLCANO CURVE ; CO ; ACTIVATION ; IRON ; DISSOCIATION ; ELECTRODES
英文摘要An increasing number of experimental studies have demonstrated that metal or metal oxide nanoparticles confined inside carbon nanotubes (CNTs) exhibit different catalytic activities with respect to the same metals deposited on the CNT exterior walls, with some reactions enhanced and others hindered. In this article, we describe the concept of confinement energy, which enables prediction of confinement effects on catalytic activities in different reactions. Combining density functional theory calculations and experiments by taking typical transition metals such as Fe, FeCo, RhMn, and Ru as models, we observed stronger strains and deformations within the CNT channels due to different electronic structures and spatial confinement. This leads to downshifted d-band states, and consequently the adsorption of molecules such as CO, N-2, and O-2 is weakened. Thus, the confined space of CNTs provides essentially a unique microenvironment due to the electronic effects, which shifts the volcano curve of the catalytic activities toward the metals with higher binding energies. The extent of the shift depends on the specific metals and the CNT diameters. This concept generalizes the diverse effects observed in experiments for different reactions, and it is anticipated to be applicable to an even broader range of reactions other than redox of metal species, CO hydrogenation, ammonia synthesis and decomposition discussed here.
语种英语
WOS记录号WOS:000348483500078
引用统计
被引频次:62[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/145937
专题中国科学院大连化学物理研究所
作者单位Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
推荐引用方式
GB/T 7714
Xiao, Jianping,Pan, Xiulian,Guo, Shujing,et al. Toward Fundamentals of Confined Catalysis in Carbon Nanotubes[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY,2015,137(1):477-482.
APA Xiao, Jianping,Pan, Xiulian,Guo, Shujing,Ren, Pengju,&Bao, Xinhe.(2015).Toward Fundamentals of Confined Catalysis in Carbon Nanotubes.JOURNAL OF THE AMERICAN CHEMICAL SOCIETY,137(1),477-482.
MLA Xiao, Jianping,et al."Toward Fundamentals of Confined Catalysis in Carbon Nanotubes".JOURNAL OF THE AMERICAN CHEMICAL SOCIETY 137.1(2015):477-482.
条目包含的文件
条目无相关文件。
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
[Xiao, Jianping]的文章
[Pan, Xiulian]的文章
[Guo, Shujing]的文章
百度学术
百度学术中相似的文章
[Xiao, Jianping]的文章
[Pan, Xiulian]的文章
[Guo, Shujing]的文章
必应学术
必应学术中相似的文章
[Xiao, Jianping]的文章
[Pan, Xiulian]的文章
[Guo, Shujing]的文章
相关权益政策
暂无数据
收藏/分享
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。