Abstract
Herein, we demonstrated the highly active and stable composites of molybdenum diselenide/carbon cloth (MoSe2/CC), molybdenum diselenide/nickel foam (MoSe2/NF), molybdenum diselenide (MoSe2/graphene/NF) electrocatalysts. The electrochemical hydrogen evolution reaction (HER) performance revealed that MoSe2/graphene/NF electrocatlyst have a platinum-like activity with overpotential 92 mV at 10 mA cm−2 and a small Tafel slope of 42 mV dec−1 in an acidic medium, which is the best among the non-noble metal hydrogen evolution catalysts. Our experimental findings validated by first-principle calculations using density of states near the Fermi level which increased the carrier concentration of electron and mobility for superior HER performance.
Original language | English |
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Pages (from-to) | 1659-1669 |
Number of pages | 11 |
Journal | Renewable Energy |
Volume | 143 |
DOIs | |
State | Published - Dec 2019 |
Keywords
- Electrocatalyst
- Gibbs energy
- Graphene
- Hybrids
- MoSe