4.8 Article

Porous Cobalt Phosphide Polyhedrons with Iron Doping as an Efficient Bifunctional Electrocatalyst

Journal

SMALL
Volume 13, Issue 40, Pages -

Publisher

WILEY-V C H VERLAG GMBH
DOI: 10.1002/smll.201701167

Keywords

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Funding

  1. Creative Research Initiative (CRI) program through the National Research Foundation (NRF) of Korea [2014R1A2069102]
  2. BK21 Plus program through the National Research Foundation (NRF) of Korea [10Z20130011057]
  3. Climate Change program through the National Research Foundation (NRF) of Korea [2016M1A2940910]
  4. Science Research Center program through the National Research Foundation (NRF) of Korea [2016R1A5A1009405]
  5. Mid-Career Researcher program through the National Research Foundation (NRF) of Korea [2015R1A2A1A10055886]
  6. Natural Science Foundation of Jiangsu Province [BK20160834]
  7. 59th Chinese Postdoctoral Science Foundation [2016M591850]
  8. Priority Academic Program Development of Jiangsu Higher Education Institutions
  9. National Research Foundation of Korea [2016M1A2A2940910, 2016R1A5A1009405, 2015R1A2A1A10055886] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)

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Iron (Fe)-doped porous cobalt phosphide polyhedrons are designed and synthesized as an efficient bifunctional electrocatalyst for both hydrogen evolution reaction (HER) and oxygen evolution reaction (OER). The synthesis strategy involves one-step route for doping foreign metallic element and forming porous cobalt phosphide polyhedrons. With varying doping levels of Fe, the optimized Fe-doped porous cobalt phosphide polyhedron exhibits significantly enhanced HER and OER performances, including low onset overpotentials, large current densities, as well as small Tafel slopes and good electrochemical stability during HER and OER.

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