Amine and Carbon-pretreated nickel–molybdenum disulfide as bifunctional electrocatalysts for hydrogen and oxygen gas evolution
نویسندگان
چکیده
We report the synthesis and characterization of a variety nickel molybdenum disulfide (NiMoS 2 ) materials as efficient bifunctional electrocatalysts for both hydrogen evolution oxygen reactions (HER OER, respectively). These catalysts were obtained from pretreated ammonium tetrathiomolybdate (ATM) using ethylenediamine (EDA), diethylenetriamine (DETA), or carbon nanotubes (CNT), which further reacted with Ni(NO 3 . All characterized by scanning electron microscopy (SEM) powder X-ray diffraction ( p XRD), all evaluated HER OER electrocatalysts. The NiMoS synthesized DETA-pretreatment exhibits best catalytic performance lowest overpotential 0.151 V, while CNT-modified shows 0.310 V. show significantly improved activity compared to one prepared directly pristine ATM precursor. • Amine nanotube pretreatment results in high ECSA. acts electrocatalyst aqueous solutions. High ECSA higher electrocatalytic efficiency than pristine. is also more
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ژورنال
عنوان ژورنال: International Journal of Hydrogen Energy
سال: 2022
ISSN: ['0360-3199', '1879-3487']
DOI: https://doi.org/10.1016/j.ijhydene.2022.06.114