CuII-Mediated Ultra-efficient Electrooxidation of Glucose

Weiran Zheng, Yong Li, Chui Shan Tsang, Liangsheng Hu, Mengjie Liu, Bolong Huang, Yoon Suk Lee, Kwok Yin Wong

Research output: Journal article publicationJournal articleAcademic researchpeer-review

11 Citations (Scopus)

Abstract

KGaA, Weinheim. Electrooxidation of glucose represents an economic conversion of biomass and has gained global interest for applications in fuel cells and sensors. Herein, we report a new, simple, and highly efficient method of glucose electrooxidation without involving any sophisticated electrode modification with biocatalysts or nanostructures. Micromolar-level Cu ions are added to coordinate with glucose in alkaline electrolyte. The coordinated glucose is oxidized by electrochemically generated CuIIIwith excellent conversion efficiency (TOF=18.7 s−1) and ultra-high sensitivity (1,814 mA M−1cm−2) under mild conditions. Both experimental and theoretical investigations show that the CuII-glucose plays a critical role in such high efficiency, which significantly reduces the oxidation potential and avoids catalyst poisoning. Our electrocatalytic system delivers remarkable atomic efficiency with high stability, thus offering great potential for applications in fuel cell and sensor design at low cost.
Original languageEnglish
Pages (from-to)2788-2792
Number of pages5
JournalChemElectroChem
Volume4
Issue number11
DOIs
Publication statusPublished - 1 Nov 2017

Keywords

  • copper-glucose coordination
  • electrocatalyst
  • glucose oxidation
  • homogeneous catalysis

ASJC Scopus subject areas

  • Catalysis
  • Electrochemistry

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