articleJournal of the American Chemical SocietyFeb 2, 2017Closed access

Shape-Dependent Electrocatalytic Reduction of CO 2 to CO on Triangular Silver Nanoplates

SLSubiao LiuHTHongbiao TaoLZLi ZengQLQi LiuZXZhenghe Xu

University of Alberta

PubMed
Indexed incrossrefpubmed

Abstract

Electrochemical reduction of CO2 (CO2RR) provides great potential for intermittent renewable energy storage. This study demonstrates a predominant shape-dependent electrocatalytic reduction of CO2 to CO on triangular silver nanoplates (Tri-Ag-NPs) in 0.1 M KHCO3. Compared with similarly sized Ag nanoparticles (SS-Ag-NPs) and bulk Ag, Tri-Ag-NPs exhibited an enhanced current density and significantly improved Faradaic efficiency (96.8%) and energy efficiency (61.7%), together with a considerable durability (7 days). Additionally, CO starts to be observed at an ultralow overpotential of 96 mV, further confirming the superiority of Tri-Ag-NPs as a catalyst for CO2RR toward CO formation. Density functional theory…

Citation impact

686
total citations
FWCI
21.80
Percentile
100%
References
23
Citations per year

Authors

7

Topics & keywords

Topics
Keywords
  • Overpotential
  • Faraday efficiency
  • Chemistry
  • Catalysis
  • Electrochemistry
  • Density functional theory
  • Redox
  • Selectivity
UN Sustainable Development Goals
  • Affordable and clean energy
No related works found for this paper.

Funding