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Abstract Reduced graphene oxide supported nickel tungstate (rGO/NiWO4) nanocomposites (NCs) were synthesized by molten salts followed by hydrothermal treatment at 120 °C. XRD, Raman, FTIR and electron microscopic studies reveal the… Click to show full abstract
Abstract Reduced graphene oxide supported nickel tungstate (rGO/NiWO4) nanocomposites (NCs) were synthesized by molten salts followed by hydrothermal treatment at 120 °C. XRD, Raman, FTIR and electron microscopic studies reveal the formation of rGO/NiWO4-NCs. The prepared rGO/NiWO4-NCs exhibit enhanced hydrogen evolution reactions (HER) than pure NiWO4 nanoparticles. The nanocomposites as the electro-catalysts deliver low onset potential (−1.35 V), low Tafel value (250 mV/dec), high current density (∼40 mA/cm2) and good stability for HER in alkaline medium compared to pure NiWO4.
Journal Title: Materials Letters
Year Published: 2019
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