Preparation of Ni–P–La alloy as a novel electrocatalysts for hydrogen evolution reaction |
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| Affiliation: | 1. Faculity of Chemistry and Chemical Engineering, Malek-Ashtar University of Technology, Tehran 15875-1774, Iran;2. Department of Applied Chemistry, Malek-Ashtar University of Technology, Isfahan 83145-115, Iran;1. National & Local Engineering Laboratory for Motive Power and Key Materials, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan, 453007, PR China;2. Collaborative Innovation Center of Henan Province for Green Motive Power and Key Materials, Henan Normal University, Xinxiang, Henan, 453007, PR China;1. Qingdao Key Laboratory of Functional Membrane Material and Membrane Technology, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, No. 189 Songling Road, 266101, Qingdao, China;2. University of Chinese Academy of Sciences, 100049, Beijing, China;1. Fuel Cell and Battery Division, CSIR-Central Glass and Ceramic Research Institute, Kolkata, 700032, India;2. Powder Metallurgy Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India;3. Academia of Scientific and Innovative Research (AcSIR), Gaziabad-201002, India;1. School of Chemical Engineering, North China University of Science and Technology, Tangshan 063210, China;2. Hebei Province Key Laboratory of Photocatalytic and Electrocatalytic Materials for Environment, North China University of Science and Technology, Tangshan 063210, China;1. Key Laboratory of Superlight Materials and Surface Technology of Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin, 150001, PR China;2. College of Aerospace and Civil Engineering, Harbin Engineering University, Harbin, 150001, PR China;1. Key Laboratory of Enhanced Heat Transfer and Energy Conservation of Education Ministry, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China;2. State Key Laboratory of Subtropical Building Science, South China University of Technology, Guangzhou 510640, China |
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| Abstract: | Ternary Ni–P–La alloy was synthesized by the co-electrodeposition method on the copper substrate. The energy-dispersive X-ray spectroscopy (EDX), scanning electron microscopy (SEM), and X-ray diffraction (XRD) were used for characterization of the synthesized alloy. The electrochemical performance of the novel alloy was investigated based on electrochemical data obtained from steady-state polarization, Tafel curves, linear sweep voltammetry (LSV), and electrochemical impedance spectroscopy (EIS) in alkaline solution and at ambient temperature. The results showed that the microstructural properties play a vital purpose in determining the electrocatalytic activity of the novel alloys. Also, the HER on investigated alloys was performed via the Volmer-Heyrovsky mechanism and Volmer step as RDS in this work. Ni–P–La catalyst was specified by ?250 = ?139.0 mV, b = ?93.0 mV dec?1, and jo = ?181.0 μA cm?2. The results revealed that the Ni–P–La catalysts have a high potential for HER electrocatalysts in 1M NaOH solution. |
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| Keywords: | Ni–P–La alloy Co-electrodeposition Hydrogen evolution reaction Steady-state polarization Tafel curves |
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