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Growth of MoSe2 thin films and use in electrochemical hydrogen evolution : abstract
Takwa Chouki, Borjana Donkova, Burhan can Aktarla, Plamen Stefanov, Saim Emin, 2020, published scientific conference contribution abstract

Abstract: We present the chemical vapor deposition (CVD) approach to grow MoSe2 thin films using colloidal molybdenum nanoparticles (Mo NPs). The synthetic protocol of Mo NPs was achieved using a wet-chemical method. The obtained Mo NPs were spin-coated on graphite substrates and heat-treated in the presence of selenium vapors at several temperatures (≥750 °C). The electrocatalytic activities of heat-treated MoSe2 thin films were studied for hydrogen evolution reaction (HER) in 0.5 M sulfuric acid (H2SO4). The lowest recorded overpotential of 218 mV at 10 mA cm−2 vs. a reversible hydrogen electrode was achieved with MoSe2−800°C catalyst. In addition, electrochemical impedance spectroscopy (EIS) was performed to access the charge-transfer resistance of the MoSe2 films. The colloidal approach combined with CVD is a promising route to produce carbon supported MoSe2 electrocatalyst for HER.
Keywords: MoSe2 thin films CVD HER
Published in RUNG: 06.02.2023; Views: 1239; Downloads: 0
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