Modulating Activity through Defect Engineering of Tin Oxides for Electrochemical CO2 Reduction

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

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Author(s)

  • Rahman Daiyan
  • Emma Catherine Lovell
  • Nicholas M. Bedford
  • Wibawa Hendra Saputera
  • Kuang-Hsu Wu
  • Sean Lim
  • Jonathan Horlyck
  • Xunyu Lu
  • Rose Amal

Related Research Unit(s)

Detail(s)

Original languageEnglish
Article number1900678
Journal / PublicationAdvanced Science
Volume6
Issue number18
Early online date4 Jul 2019
Publication statusPublished - 18 Sep 2019

Link(s)

Abstract

The large-scale application of electrochemical reduction of CO2, as a viable strategy to mitigate the effects of anthropogenic climate change, is hindered by the lack of active and cost-effective electrocatalysts that can be generated in bulk. To this end, SnO2 nanoparticles that are prepared using the industrially adopted flame spray pyrolysis (FSP) technique as active catalysts are reported for the conversion of CO2 to formate (HCOO), exhibiting a FEHCOO of 85% with a current density of −23.7 mA cm−2 at an applied potential of −1.1 V versus reversible hydrogen electrode. Through tuning of the flame synthesis conditions, the amount of oxygen hole center (OHC; Sn≡O●) is synthetically manipulated, which plays a vital role in CO2 activation and thereby governing the high activity displayed by the FSP-SnO2 catalysts for formate production. The controlled generation of defects through a simple, scalable fabrication technique presents an ideal approach for rationally designing active CO2 reduction reactions catalysts.

Research Area(s)

  • CO2 reduction, defect engineering, flame spray pyrolysis, formate, oxygen hole centers, oxygen vacancy, SnO2

Citation Format(s)

Modulating Activity through Defect Engineering of Tin Oxides for Electrochemical CO2 Reduction. / Daiyan, Rahman; Lovell, Emma Catherine; Bedford, Nicholas M.; Saputera, Wibawa Hendra; Wu, Kuang-Hsu; Lim, Sean; Horlyck, Jonathan; Ng, Yun Hau; Lu, Xunyu; Amal, Rose.

In: Advanced Science, Vol. 6, No. 18, 1900678, 18.09.2019.

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

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