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Title:Iron phosphide as an efficient electrocatalysts for hydrogen evolution : abstract
Authors:ID Chouki, Takwa, Materials Research Laboratory, University of Nova Gorica, Vipavska 11c, 5270, Ajdovščina, Slovenia (Author)
ID Machreki, Manel, Materials Research Laboratory, University of Nova Gorica, Vipavska 11c, 5270, Ajdovščina, Slovenia (Author)
ID Emin, Saim, Materials Research Laboratory, University of Nova Gorica, Vipavska 11c, 5270, Ajdovščina, Slovenia (Author)
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Language:English
Work type:Not categorized
Typology:1.12 - Published Scientific Conference Contribution Abstract
Organization:UNG - University of Nova Gorica
Abstract:We report the solvothermal synthesis of iron phosphide electrocatalysts using a low-cost phosphorus precursor. The synthetic protocol allows for the preparation of a Fe2P phase at 300°C and FeP phase at 350°C. To enhance the catalytic activities of obtained iron phosphide particles, heat-treatments were carried out at elevated temperatures. Annealing at 500°C induced structural changes in the samples: (i) Fe2P provided a pure Fe3P phase (Fe3P−500°C) and (ii) FeP transformed into a mixture of iron phosphide phases (Fe2P/FeP−500°C). The electrocatalytic activities of heat-treated Fe2P−450°C, Fe3P−500°C, and Fe2P/FeP−500°C catalysts were studied for hydrogen evolution reaction (HER) in 0.5 M sulfuric acid (H2SO4). The lowest recorded overpotential of 110 mV at 10 mA cm−2 vs. a reversible hydrogen electrode was achieved with Fe2P/FeP−500°C catalyst. The present approach allows preparation of immobilized iron phsphide catalyst onto carbon support which is essential for application purpose. The procedure developed by us is an elegant approach to tune the composition of iron phosphide catalyst and control the morphology of particles
Keywords:solvothermal synthesis iron phosphide electrocatalysis HER
Year of publishing:2020
PID:20.500.12556/RUNG-7910 New window
COBISS.SI-ID:140838403 New window
NUK URN:URN:SI:UNG:REP:RDR63L5U
Publication date in RUNG:06.02.2023
Views:2640
Downloads:0
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CHOUKI, Takwa, MACHREKI, Manel and EMIN, Saim, 2020, Iron phosphide as an efficient electrocatalysts for hydrogen evolution : abstract. In : Iron phosphide as an efficient electrocatalysts for hydrogen evolution [online]. Published Scientific Conference Contribution Abstract. online. 2020. [Accessed 24 April 2025]. Retrieved from: https://repozitorij.ung.si/IzpisGradiva.php?lang=eng&id=7910
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Title:Iron phosphide as an efficient electrocatalysts for hydrogen evolution
Place of publishing:online
Year of publishing:2020
Conference organizer:International Online Conference on Functional Nanomaterials

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