Implementation of Transition Metal Phosphides as Pt-Free Catalysts for PEM Water Electrolysis
نویسندگان
چکیده
Proton Exchange Membrane (PEM) water electrolysis (WE) produces H2 with a high degree of purity, requiring only and energy. If the energy is provided from renewable sources, it releases “Green H2”, CO2-free H2. PEMWE uses expensive rare noble metal catalysts, which hinder their use at large industrial scale. In this work, electrocatalytic properties Transition Metal Phosphides (TMP) catalysts supported on Carbon Black (CB) for Hydrogen Evolution Reaction (HER) were investigated as an alternative to Platinum Group Metals. The physico-chemical catalytic performance synthesized characterized. ex situ experiments, 25% FeP/CB, 50% FeP/CB CoP/CB overpotentials −156.0, −165.9 −158.5 mV current density 100 mA cm−2 showed best properties, thereby progressing tests. those tests, required overpotential 252 10 cm−2, quite close 220 Pt catalyst. This work provides proper approach synthesis characterization TMP carbon materials HER, paving way further research in order replace currently used PGM PEMWE.
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ژورنال
عنوان ژورنال: Energies
سال: 2022
ISSN: ['1996-1073']
DOI: https://doi.org/10.3390/en15051821