Abstract
A study is conducted to improve hydrogen evolution reaction (HER) of earth-abundant cobalt-doped iron pyrite catalysts by surface modification with phosphide. To improve the conductivity of earth-abundant materials, electrocatalysts are directly grown on substrates such as reduced graphene oxide sheets, carbon nanotubes, and carbon-fiber papers, resulting in enhanced HER catalytic activities. Doping metal catalysts with additional metal atoms is an alternative approach to improve intrinsic catalytic activities for the HER. Se-doped MoS2 have showed excellent catalytic activity with a lower overpotential of -140 mV and a smaller Tafel slope of 55 mV per decade compared to those of pristine MoS2.
Original language | English |
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Article number | 1603356 |
Journal | Small |
Volume | 13 |
Issue number | 8 |
DOIs | |
Publication status | Published - 2017 Jan 1 |
Externally published | Yes |
Keywords
- catalysts
- earth abundant
- hydrogen evolution reaction
- iron pyrite
- phosphide
ASJC Scopus subject areas
- Biotechnology
- Biomaterials
- Chemistry(all)
- Materials Science(all)