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Confined catalysis under two-dimensional materials
Li, Haobo; Xiao, Jianping; Fu, Qiang; Bao, Xinhe
KeywordConfined Catalysis Two-dimensional Materials Density Functional Theory Oxygen Reduction Reaction Graphene
Source PublicationPROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
2017-06-06
DOI10.1073/pnas.1701280114
Volume114Pages:5930-5934
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology
WOS SubjectMultidisciplinary Sciences
WOS Research AreaScience & Technology - Other Topics
WOS KeywordHEXAGONAL BORON-NITRIDE ; METAL-ORGANIC FRAMEWORKS ; CO OXIDATION REACTION ; OXYGEN REDUCTION ; CARBON NANOTUBES ; REVERSIBLE HYDROGENATION ; ELECTRONIC CONFINEMENT ; ACTIVE-SITE ; GRAPHENE ; INTERFACE
AbstractConfined microenvironments formed in heterogeneous catalysts have recently been recognized as equally important as catalytically active sites. Understanding the fundamentals of confined catalysis has become an important topic in heterogeneous catalysis. Well-defined 2D space between a catalyst surface and a 2D material overlayer provides an ideal microenvironment to explore the confined catalysis experimentally and theoretically. Using density functional theory calculations, we reveal that adsorption of atoms and molecules on a Pt(111) surface always has been weakened under monolayer graphene, which is attributed to the geometric constraint and confinement field in the 2D space between the graphene overlayer and the Pt(111) surface. A similar result has been found on Pt(110) and Pt(100) surfaces covered with graphene. The microenvironment created by coating a catalyst surface with 2D material overlayer can be used to modulate surface reactivity, which has been illustrated by optimizing oxygen reduction reaction activity on Pt(111) covered by various 2D materials. We demonstrate a concept of confined catalysis under 2D cover based on a weak van der Waals interaction between 2D material overlayers and underlying catalyst surfaces.
Language英语
WOS IDWOS:000402703800049
Citation statistics
Cited Times:51[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/152213
Collection中国科学院大连化学物理研究所
AffiliationChinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Collaborat Innovat Ctr Chem Energy Mat iChEM, Dalian 116023, Peoples R China
Recommended Citation
GB/T 7714
Li, Haobo,Xiao, Jianping,Fu, Qiang,et al. Confined catalysis under two-dimensional materials[J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,2017,114:5930-5934.
APA Li, Haobo,Xiao, Jianping,Fu, Qiang,&Bao, Xinhe.(2017).Confined catalysis under two-dimensional materials.PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,114,5930-5934.
MLA Li, Haobo,et al."Confined catalysis under two-dimensional materials".PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 114(2017):5930-5934.
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