Abstract
Herein, bimetallic sulphide CoSe2-FeSe2 anchored on the surface of carbon nanotube (CNT) networks are prepared via a selenization and subsequent annealing process. The CoSe2- FeSe2/CNT hybrid shows excellent property for electrocatalytic hydrogen evolution reaction, featured by a low Tafel slope of 39 mV dec−1, an overpotential of 205 mV (10 mA cm−2), as well as good long-term stability in 0.5M H2SO4 electrolyte. The outstanding HER performance is mainly due to the synergistic effects of the bi-metallization and its unique porous nanoarchitecture: the bi-metallization causes strong coupling interaction between CoSe2 and FeSe2, which facilitates the charge transfer at the interfaces and the reconfiguration of the partial electron structure; the porous nanoarchitecture enable the close contact between electrolyte and active site as well accelerate the evolved gas bubbles releasing. This work provides insight into facile fabrication of bi-metallic selenide electrocatalysts with excellent HER performance in acid medium.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
