Cobalt/nitrogen-Co-doped nanoscale hierarchically porous composites derived from octahedral metal-organic framework for efficient oxygen reduction in microbial fuel cells

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • Kengqiang Zhong
  • Linzhe Huang
  • Meng Li
  • Yi Dai
  • Yan Wang
  • Jianliang Zuo
  • Hongguo Zhang
  • Bopeng Zhang
  • Jinfeng Tang
  • Jia Yan
  • Minhua Su

Related Research Unit(s)

Detail(s)

Original languageEnglish
Pages (from-to)30127-30140
Journal / PublicationInternational Journal of Hydrogen Energy
Volume44
Issue number57
Online published21 Oct 2019
Publication statusPublished - 15 Nov 2019

Abstract

Microbial fuel cell, a promising energy conversion technology, plays a crucial role in the field of renewable and sustainable energy. In an air-cathode microbial fuel cell, the oxygen reduction reaction catalytic activity of cathode catalyst is a critical factor that determines the performance of microbial fuel cell. This work reports a facile route for the synthesis of Co/N incorporated carbonaceous electrocatalyst using a Zr-based metal-organic framework UiO66-NH2 as a template. This electrocatalyst exhibits outstanding activity and stability toward four-electron mechanism. In the microbial fuel cell application, Co/UiO66-900 shows superb electrochemical performance with a stable output voltage of 395 mV and maximum power density of 299.62 mW/m2, which is 95.8% of the power density achieved in microbial fuel cell catalyzed by Pt/C catalyst (312.59 mW/m2). Co/UiO66-900 possesses high-performance catalytic activity because of its 3D-structured micropores, nitrogen-coordinated cobalt species and the synergistic effects between carbon and metal ion center. These unique properties can facilitate the oxygen reduction reaction by exposing abundant efficient active sites and accelerating mass transfer at oxygen reduction reaction interfaces. This work suggests that Co/UiO66-900 catalyst with superb electrocatalytic ORR activity is a promising alternative which can replace the expensive Pt/C in air-cathode MFC.

Research Area(s)

  • Co/N-incorporated carbonaceous materials, Metal organic framework, Microbial fuel cell, Oxygen reduction reaction

Citation Format(s)

Cobalt/nitrogen-Co-doped nanoscale hierarchically porous composites derived from octahedral metal-organic framework for efficient oxygen reduction in microbial fuel cells. / Zhong, Kengqiang; Huang, Linzhe; Li, Meng et al.
In: International Journal of Hydrogen Energy, Vol. 44, No. 57, 15.11.2019, p. 30127-30140.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review