Mesoporous anion-cation-codoped Co9S8 nanorings for enhanced electrocatalytic oxygen evolution reactions
- 6 May 2020
- journal article
- research article
- Published by IOP Publishing in Nanotechnology
- Vol. 31 (33), 334001
- https://doi.org/10.1088/1361-6528/ab90b8
Abstract
Recently, the design and synthesis of Co9S8 micro/nanostructures have attracted attention as electrochemical energy storage and conversion devices due to their low cost and environmental friendliness. Herein, Co9S8 nanorings were synthesized via a one-step solvothermal method with the incorporation of Fe ions, subsequently, properly selenized to boost their electrocatalytic performance. The morphology and structure of the series of cation and anion regulated Co9S8 nanorings were characterized and the electrochemical oxygen evolution reaction (OER) properties were assessed. It is worth noting that the as-prepared catalysts, especially the innovative Fe and Se ions double doped Co9S8 nanorings, denoted as Se/Fe-Co9S8-0.14, and exhibited good electrocatalytic OER performance with low overpotential (298 mV) and high durability under alkaline conditions. This work provides a new perspective to develop non-noble metal Co9S8-based OER electrocatalysts with a superior electrocatalytic performance.Keywords
This publication has 68 references indexed in Scilit:
- Boosting the performance of Cu2O photocathodes for unassisted solar water splitting devicesNature Catalysis, 2018
- Nanostructured Metal Chalcogenides for Energy Storage and ElectrocatalysisAdvanced Functional Materials, 2017
- Surface and Interface Engineering of Noble-Metal-Free Electrocatalysts for Efficient Energy Conversion ProcessesAccounts of Chemical Research, 2017
- Recent Progress in Cobalt‐Based Heterogeneous Catalysts for Electrochemical Water SplittingAdvanced Materials, 2015
- Transition Metal Nitrides for Electrocatalytic Energy Conversion: Opportunities and ChallengesChemistry – A European Journal, 2015
- Noble metal-free hydrogen evolution catalysts for water splittingChemical Society Reviews, 2015
- Toward the rational design of non-precious transition metal oxides for oxygen electrocatalysisEnergy & Environmental Science, 2015
- Design of electrocatalysts for oxygen- and hydrogen-involving energy conversion reactionsChemical Society Reviews, 2015
- Oxygen Electrochemistry as a Cornerstone for Sustainable Energy ConversionAngewandte Chemie, 2013
- Water‐Splitting Catalysis and Solar Fuel Devices: Artificial Leaves on the MoveAngewandte Chemie-International Edition, 2013