Abstract
The development of highly active and earth-abundant electrocatalysts for the hydrogen evolution reaction (HER) from water holds great promise for clean energy storage and conversion technologies. Pyrite phase transition metal disulfides based electrocatalysts have attracted much attention because of their activity and earth-abundance. In this work we report on the synthesis of in-situ growing quaternary Co0.8Ni0.1Fe0.1S2 nanoparticles decorating on the reduced graphene oxide (CNFS@rGO) as hybrid Pt-free HER catalyst with high-activity as well as durability. Specifically, the additional active sites can attribute to the incorporation of the Ni and Fe, moreover, the enhancement of anti-aggregation and electron transporter efficiently from rGO which is visually verified by the result of electrochemically active area. As a result, the nanohybrid electrocatalysts possess high HER properties with the need of overpotential of only 138 mV to drive 10 mA cm−2, an small Tafel slope of 49 mV dec−1, and superior long-term continuous durability in 0.5 M H2SO4 (over 33 h). This study offers us a pathway to design and fabrication of multicomponent low-cost metal disulfides based electrocatalysts.
Sign-in/Register to access full text options 
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.
