Skutterudite-Type Ternary Co1–xNixP3 Nanoneedle Array Electrocatalysts for Enhanced Hydrogen and Oxygen Evolution
Source abstract
Abstract
Developing earth-abundant and low-cost electrocatalysts for water splitting is important for the conversion systems of renewable and clean energy. Herein, under the guidance of theoretical calculations, a new type of skutterudite-type ternary cobalt nickel phosphide (Co1–xNixP3) nanoneedle arrays (NAs) is fabricated on carbon cloth for the splitting of water. The electronic structure was tuned by doping an appropriate amount of Ni, and the resultant Co0.93Ni0.07P3 displayed good catalytic activity toward hydrogen evolution reaction (HER) with an overpotential (η10) of 87 mV versus reversible hydrogen electrode (RHE) when the current density reaches −10 mA cm–2 and the Tafel slope of the catalyst is 60.7 mV dec–1 in alkaline electrolyte. In addition, the Co0.93Ni0.07P3 also exhibited an OER activity (η20 of 221 mV vs RHE and the Tafel slope of 83.7 mV dec–1). These skutterudite-based Co1–xNixP3 electrocatalysts show promising potential in the applications of overall water splitting in an alkaline environment.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Electrocatalysts for Energy Conversion · Advanced battery technologies research · Advanced Photocatalysis Techniques
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Physics, Harbin Institute of Technology, Harbin 150001, PR China
Department of Applied Physics, Nanjing University of Science and Technology, Nanjing 210094, PR China
Institute of Petrochemistry, Heilongjiang Academy of Sciences, Harbin 150040, PR China
Centre for Composite Materials and Structures, Harbin Institute of Technology, Harbin 150001, PR China
Academy of Fundamental and Interdisciplinary Sciences, Harbin Institute of Technology, Harbin 150001, PR China
School of Advanced Study, Taizhou University, Taizhou, 317000, China
Funding
Program for New Century Excellent Talents in University · Ministry of Education of the People's Republic of China · Ministry of Science and Technology of the People's Republic of China · Natural Science Foundation of Heilongjiang Province · National Natural Science Foundation of China
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