Self-Assembly of Single-Layer CoAl-Layered Double Hydroxide Nanosheets on 3D Graphene Network Used as Highly Efficient Electrocatalyst for Oxygen Evolution Reaction

Jianfeng Ping; Yixian Wang; Qipeng Lu; Bo Chen; Junze Chen; Ying Huang; Qinglang Ma; Chaoliang Tan; Jian Yang; Xiehong Cao; Zhijuan Wang; Jian Wu; Yibin Ying; Hua Zhang

doi:10.1002/adma.201601019

Self-Assembly of Single-Layer CoAl-Layered Double Hydroxide Nanosheets on 3D Graphene Network Used as Highly Efficient Electrocatalyst for Oxygen Evolution Reaction

Adv Mater. 2016 Sep;28(35):7640-5. doi: 10.1002/adma.201601019. Epub 2016 Jun 29.

Authors

Jianfeng Ping^{1

2}, Yixian Wang², Qipeng Lu², Bo Chen², Junze Chen², Ying Huang², Qinglang Ma², Chaoliang Tan², Jian Yang², Xiehong Cao^{2

3}, Zhijuan Wang⁴, Jian Wu¹, Yibin Ying¹, Hua Zhang⁵

Affiliations

¹ School of Biosystems Engineering and Food Science, Zhejiang University, 866 Yuhangtang Road, Hangzhou, 310058, China.
² Center for Programmable Materials, School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore.
³ College of Materials Science and Engineering, Zhejiang University of Technology, 18 Chaowang Road, Hangzhou, 310014, China.
⁴ Institute of Materials Research and Engineering, A*STAR (Agency for Science, Technology and Research), 2 Fusionopolis Way, Innovis 08-03, Singapore, 138634, Singapore.
⁵ Center for Programmable Materials, School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore. hzhang@ntu.edu.sg, hzhang166@gmail.com.

PMID: 27356037
DOI: 10.1002/adma.201601019

Abstract

A non-noble metal based 3D porous electrocatalyst is prepared by self-assembly of the liquid-exfoliated single-layer CoAl-layered double hydroxide nanosheets (CoAl-NSs) onto 3D graphene network, which exhibits higher catalytic activity and better stability for electrochemical oxygen evolution reaction compared to the commercial IrO2 nanoparticle-based 3D porous electrocatalyst.

Keywords: 3D graphene networks; layered double hydroxides; oxygen evolution reactions; water splitting.