Synthesis of ultrafine NiMoO4 nano-rods for excellent electro-catalytic performance in hydrogen evolution reactions
, Jahangeer Ahmed, Mohd Ubiadullah, Norah Alhokbany, Saad M. Alshehri . 2019
Nickel molybdenum oxide (NiMoO4) nano-rods (NRs) were synthesized using molten salts at 325 C/6 h
with an average diameter of 50 nm. NiMoO4-NRs exhibit excellent electro-catalytic hydrogen evolution
reactions (HER) in alkaline medium at various concentration of KOH (0.1, 0.5 and 1.0 M). Tafel slope and
the onset over-potential of NiMoO4-NRs were found to be 71 mV/dec and 41 mV, respectively, in
1.0 M KOH versus RHE. Moreover, we have observed low potential energy loss and high stability of electrodes during the chronoamperometric studies (current density v/s time) at the fixed potential for 3600 s
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