Confined catalysis under two-dimensional materials
文献类型：期刊论文
| 作者 | Li, Haobo; Xiao, Jianping; Fu, Qiang; Bao, Xinhe |
| 刊名 | PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
 |
| 出版日期 | 2017-06-06 |
| 卷号 | 114页码:5930-5934 |
| 关键词 | Confined Catalysis Two-dimensional Materials Density Functional Theory Oxygen Reduction Reaction Graphene |
| DOI | 10.1073/pnas.1701280114 |
| 英文摘要 | Confined 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. |
| 语种 | 英语 |
| WOS记录号 | WOS:000402703800049 |
| 源URL | [http://cas-ir.dicp.ac.cn/handle/321008/152213]  |
| 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 | Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Collaborat Innovat Ctr Chem Energy Mat iChEM, Dalian 116023, Peoples R China |
| 推荐引用方式 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. |
入库方式： OAI收割
来源：大连化学物理研究所
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