Fabrication of Cobalt Porphyrin. Electrochemically Reduced Graphene Oxide Hybrid Films for Electrocatalytic Hydrogen Evolution in Aqueous Solution

Dekang Huang, Jianfeng Lu, Shaohui Li, Yanping Luo, Chen Zhao, Bin Hu, Mingkui Wang, Yan Shen

Research output: Contribution to journalArticleResearchpeer-review

56 Citations (Scopus)

Abstract

Here we report on an experimental study of an electrocatalyst for the hydrogen evolution reaction (HER) based on cobalt porphyrin and electrochemically reduced graphene oxide (ERGO) functional multilayer films, which are prepared by the alternating layer-by-layer (LBL) assembly of negatively charged graphene oxide (GO) and positively charged [tetrakis (N-methylpyridyl) porphyrinato] cobalt (CoTMPyP) in combination with an electrochemical reduction procedure. The resulting [ERGO@CoTMPyP]n multilayer films display relatively high electrocatalytic activity and superior stability toward HER in alkaline media. Electrochemical studies indicate that CoTMPyP in the multilayer films is the active catalyst for the reduction of protons to dihydrogen.

Original languageEnglish
Pages (from-to)6990-6998
Number of pages9
JournalLangmuir
Volume30
Issue number23
DOIs
Publication statusPublished - 17 Jun 2014
Externally publishedYes

Cite this