articleAdvanced Energy MaterialsSep 18, 2017GREEN OA

Single‐Crystalline Ultrathin Co 3 O 4 Nanosheets with Massive Vacancy Defects for Enhanced Electrocatalysis

ZCZhao CaiYBYongmin BiEHEnyuan HuWLWen LiuNDNico Dwarica

Brookhaven National Laboratory · Yale University · +2 more institutions

Indexed incrossref

Abstract

Abstract The role of vacancy defects is demonstrated to be positive in various energy‐related processes. However, introducing vacancy defects into single‐crystalline nanostructures with given facets and studying their defect effect on electrocatalytic properties remains a great challenge. Here this study deliberately introduces oxygen defects into single‐crystalline ultrathin Co 3 O 4 nanosheets with O‐terminated {111} facets by mild solvothermal reduction using ethylene glycol under alkaline condition. As‐prepared defect‐rich Co 3 O 4 nanosheets show a low overpotential of 220 mV with a small Tafel slope of 49.1 mV dec −1 for the oxygen evolution reaction (OER), which is among the best Co‐based OER catalysts…

Citation impact

553
total citations
FWCI
15.69
Percentile
100%
References
52
Citations per year

Authors

12

Topics & keywords

Topics
Keywords
  • Overpotential
  • Materials science
  • Vacancy defect
  • Tafel equation
  • Electrocatalyst
  • Oxygen evolution
  • Catalysis
  • Nanotechnology
UN Sustainable Development Goals
  • Affordable and clean energy
No related works found for this paper.

Funding