Jump to main content
Jump to site search

Issue 9, 2016
Previous Article Next Article

Cobalt nanoparticles embedded in porous N-rich carbon as an efficient bifunctional electrocatalyst for water splitting

Author affiliations

Abstract

Exploring efficient non-precious electrocatalysts with dual functionality for working in the same electrolyte towards both the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) is crucial for developing various devices for conversion, storage and usage of renewable energy. In this communication, we report a novel bifunctional electrocatalyst based on cobalt nanoparticles (NPs) embedded in porous N-rich carbon (PNC/Co) derived from a cobalt-containing metal–organic framework, which can serve as both active cathode and anode materials to drive the overall water splitting in alkaline media for the simultaneous electrogeneration of hydrogen and oxygen gases. In 1.0 M KOH electrolyte, the PNC/Co achieves small overpotentials at a current density of 10 mA cm−2 and yields high faradaic efficiency towards both the HER and OER. When fabricated as an alkaline water electrolyzer, the bifunctional PNC/Co affords 10 mA cm−2 at a cell voltage of 1.64 V.

Graphical abstract: Cobalt nanoparticles embedded in porous N-rich carbon as an efficient bifunctional electrocatalyst for water splitting

Back to tab navigation

Supplementary files

Publication details

The article was received on 23 Dec 2015, accepted on 29 Jan 2016 and first published on 29 Jan 2016


Article type: Communication
DOI: 10.1039/C6TA00223D
Citation: J. Mater. Chem. A, 2016,4, 3204-3209
  •   Request permissions

    Cobalt nanoparticles embedded in porous N-rich carbon as an efficient bifunctional electrocatalyst for water splitting

    X. Li, Z. Niu, J. Jiang and L. Ai, J. Mater. Chem. A, 2016, 4, 3204
    DOI: 10.1039/C6TA00223D

Search articles by author

Spotlight

Advertisements