Microwave‐Assisted Rapid Synthesis of Graphene‐Supported Single Atomic Metals
Abstract
Graphene‐supported single atomic metals (G‐SAMs) have recently attracted considerable research interest for their intriguing catalytic, electronic, and magnetic properties. The development of effective synthetic methodologies toward G‐SAMs with monodispersed metal atoms is vital for exploring their fundamental properties and potential applications. A convenient, rapid, and general strategy to synthesize a series of monodispersed atomic transition metals (for example, Co, Ni, Cu) embedded in nitrogen‐doped graphene by two‐second microwave (MW) heating the mixture of amine‐functionalized graphene oxide and metal salts is reported here. The MW heating is able to simultaneously induce the reduction of graphene oxide, the doping of nitrogen, and the incorporation of metal atoms into the graphene lattices in one simple step. The rapid MW process minimizes metal diffusion and aggregation to ensure exclusive single metal atom dispersion in graphene lattices. Electrochemical studies demonstrate that graphene‐supported Co atoms can function as highly active electrocatalysts toward the hydrogen evolution reaction. This MW‐assisted method provides a rapid and efficient avenue to supported metal atoms for wide ranges of applications.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Jul 17, 2018
- Source ID
- 10.1002/adma.201802146
Entities
People
- Chengzhang Wan
- Haotian Liu
- Huilong Fei
- Imran Shakir
- Jun Luo
- Juncai Dong
- Ketao Zang
- Shenglong Zhao
- Wei Hu
- Wensheng Yan
- Xiang Xu
- Xiangfeng Duan
- Yiliu Wang
- Yu Huang
- Zhaoyang Lin
- Zipeng Zhao
Organizations
- Beijing Electron–Positron Collider II
- King Saud University
- National Natural Science Foundation of China
- National Science Foundation
- National Synchrotron Radiation Laboratory
- Office of Naval Research
- University of California, Los Angeles
- University of New South Wales
- Youth Innovation Promotion Association