High-valence Mo doping for promoted water splitting of Ni layered double hydroxide microcrystals
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The oxygen evolution reaction (OER) is the primary challenge in renewable energy storage technologies, specifically electrochemical water splitting for hydrogen generation. We report effects of Mo doping into Ni layered double hydroxide(Ni-LDH) microcrystal on electrocatalytic activities. In this study, Mo doped Ni-LDH were grown on three-dimensional porous nicekl foam (NF) by a facile solvothermal method. Homogeneous LDH structure on the NF was clearly observed. However, the surface microstructure of the nickel foam began to be irregular and collapsed when Mo precursor is doped. Electrocatalytic OER properties were analyzed by Linear sweep voltammetry (LSV) and Electrochemical impedance spectroscopy (EIS). The amount of Mo doping used in the electrocatalytic reaction was found to play a crucial role in improving catalyticactivity. The optimum Mo amount introduced into the Ni LDH was discussed with respect to their OER performance.
Abstract
The oxygen evolution reaction (OER) is the primary challenge in renewable energy storage technologies, specifically electrochemical water splitting for hydrogen generation. We report effects of Mo doping into Ni layered double hydroxide(Ni-LDH) microcrystal on electrocatalytic activities. In this study, Mo doped Ni-LDH were grown on three-dimensional porous nicekl foam (NF) by a facile solvothermal method. Homogeneous LDH structure on the NF was clearly observed. However, the surface microstructure of the nickel foam began to be irregular and collapsed when Mo precursor is doped. Electrocatalytic OER properties were analyzed by Linear sweep voltammetry (LSV) and Electrochemical impedance spectroscopy (EIS). The amount of Mo doping used in the electrocatalytic reaction was found to play a crucial role in improving catalyticactivity. The optimum Mo amount introduced into the Ni LDH was discussed with respect to their OER performance.
참고문헌 (15)
- B. You, "Innovative strategies for electrocatalytic water splitting", Acc. Chem. Res, 51, pp.1571~ (2018)
- Y. Shi, "Recent advances in transition metal phosphide nanomaterials : synthesis and applications in hydrogen evolution reaction", Chem. Soc. Rev, 45, pp.1529~ (2016)
- M. Zeng, "Recent advances in heterogeneous electrocatalysts for the hydrogen evolution reaction", J. Mater. Chem. A, 3, pp.14942~ (2015)
- 이호준, "수전해용 Nd1.5Ba1.5CoFeMnOx 전기촉매 특성 분석", 한국결정성장학회지, 30(1), pp.17~20 (2020), 한국결정성장학회[DOI]
- W. Zhang, "Surface plasmon-driven photoelectrochemical water splitting of aligned ZnO nanorod arrays decorated with loading-controllable au nanoparticles", Sol. Energy Mater. Sol. Cells, 180, pp.25~ (2018)
- R. Kant, "Design and fabrication of sandwich-structured α-Fe2O3", Au, Sol. Energy Mater. Sol. Cells, pp.2018, 178[DOI]
- S. A. Shah, "Thermal synthesis of FeNi@nitrogen-doped graphene dispersed on nitrogendoped carbon matrix as an excellent electrocatalyst for oxygen evolution reaction", ACS Appl. Energy Mater, 2, pp.4075~ (2019)
- T. Zhang, "Engineering oxygen vacancy on NiO nanorod arrays for alkaline hydrogen evolution", Nano Energy, 43, pp.103~ (2018)
- L. Lin, "Hydrothermal fabrication of uniform hexagonal NiO nanoshet: Structure, growth and response", Mater. Lett, 102-103, pp.43~ (2013)
- G-Q. Han, "Three dimensional nickel oxides", nickel structure by in situ electro-oxidation of nickel foam as robust electrocatalyst for oxygen evolution reaction, 2015, pp.359, 172~
- L. Wei, "High-valence Mo doping fo highly promoted water oxidatin of NiFe(oxy)hydroxide", J. Mater. Chem. A, 10, pp.23790~ (2022)
- M. Xu, "Layered double hydroxide-based catalysts : Recent advances in preparation, structure, and applications", Adv. Funct. Mater, 28, pp.1802943~ (2018)
- J. Masa, "Ultrathin high surface area nickel boride(NixB)nanosheets as highly efficient electrocatalyst for oxygen evolution", Adv. Energy Mater, 7, pp.1700381~ (2017)
- C. C. L. McCrory, "Benchmarking heterogeneous electrocatalysts for the oxygen evolution reaction", J. Am. Chem. Soc, 135, pp.16977~ (2013)
- N. T. Suen, "Electrocatalysis for the oxygen evolution reaction : Recent development and future perspectives", Chem. Soc. Rev, 46, pp.337~ (2017)