WO3 nanorods-modified carbon electrode for sustained electron uptake from Shewanella oneidensis MR-1 with suppressed biofilm formation

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

18 Scopus Citations
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Author(s)

  • Feng Zhang
  • Shi-Jie Yuan
  • Wen-Wei Li
  • Jie-Jie Chen
  • Han-Qing Yu

Detail(s)

Original languageEnglish
Pages (from-to)1-5
Journal / PublicationElectrochimica Acta
Volume152
Online published18 Nov 2014
Publication statusPublished - 10 Jan 2015

Abstract

Carbon materials are widely used as electrodes for bioelectrochemical systems (BES). However, a thick biofilm tends to grow on the electrode surface during continuous operation, resulting in constrained transport of electrons and nutrients at the cell-electrode interface. In this work, we tackled this problem by adopting a WO3-nanorods modified carbon electrode (C-WO3 nanorods), which completely suppressed the biofilm growth of Shewanella Oneidensis MR-1. Moreover, the C-WO3 nanorods exhibited high electric conductivity and strong response to riboflavin. These two factors together make it possible for the C-WO3 nanorods to maintain a sustained, efficient process of electron transfer from the MR-1 planktonic cells. As a consequence, the microbial fuel cells with C-WO3 nanorods anode showed more stable performance than the pure carbon paper and WO3-nanoparticles systems in prolonged operation. This work suggests that WO3 nanorods have the potential to be used as a robust and biofouling-resistant electrode material for practical bioelectrochemical applications.

Research Area(s)

  • Biofilms, Microbial fuel cells (MFCs), Riboflavin, Shewanella oneidensis MR-1, WO3 nanorods

Citation Format(s)

WO3 nanorods-modified carbon electrode for sustained electron uptake from Shewanella oneidensis MR-1 with suppressed biofilm formation. / Zhang, Feng; Yuan, Shi-Jie; Li, Wen-Wei; Chen, Jie-Jie; Ko, Chi-Chiu; Yu, Han-Qing.

In: Electrochimica Acta, Vol. 152, 10.01.2015, p. 1-5.

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