吉林大学学报(理学版) ›› 2020, Vol. 58 ›› Issue (4): 977-982.

• 物理 • 上一篇    下一篇

Ptn石墨烯体系氧还原反应的第一性原理计算

曹妙聪1, 徐强1, 师帅2   

  1. 1. 长春工程学院 勘查与测绘工程学院, 长春 130021; 2. 吉林大学 材料科学与工程学院, 长春 130012
  • 收稿日期:2019-10-17 出版日期:2020-07-26 发布日期:2020-07-16
  • 通讯作者: 徐强 E-mail:627287881@qq.com

First-Principle Calculations of ORR on PtGraphene

CAO Miaocong1, XU Qiang1, SHI Shuai2   

  1. 1. School of Prospecting and Surveying, Changchun Institute of Technology, Changchun 130021, China;2. College of Materials Science and Engineering, Jilin University, Changchun 130012, China
  • Received:2019-10-17 Online:2020-07-26 Published:2020-07-16
  • Contact: XU Qiang E-mail:627287881@qq.com

摘要: 通过构建单层六方石墨烯(单空位)超晶胞结构, 用基于密度泛函理论的第一性原理研究Pt石墨烯体系中反应前O2的吸附(脱附)势
垒及反应过程中H2O分子和OH的脱附势垒, 并研究Pt团簇石墨烯体系中(Pt2石墨烯和Pt4石墨烯)氧还原反应(ORR)的中间产物及其吸附能的变化过程, 给出ORR的最优路径.

关键词: 石墨烯, 铂催化剂, 第一性原理

Abstract: We built the supercell model of single layer monovacancy graphene with hexagonal structure. Based on the first-principles of density functional theory, we studied the adsorption energy of O2 and the desorption energy of H2O and OH on Pt graphene. We investigated the intermediate reactant and the corresponding energy change of Pt2graphene and Pt4 graphene in oxygen reduction reaction (ORR), and gave the optimal path of ORR.

Key words: graphene, Pt catalyst, first principle

中图分类号: 

  • O469