Abstract
Nano-crystalline tungsten carbide thin films were fabricated on pure flake Ni and foam Ni substrates by plasma enhanced chemical vapor deposition. SEM results showed that the films were composed of uniform grains with a diameter of around 10 nm. The electrocatalytic properties of the film for hydrogen evolution reaction in alkaline solution were investigated. The film showed an attractive catalytic activity in hydrogen evolution. The exchange current density of hydrogen evolution reaction was 4.02–4.22 × 10 −4 A cm −2. When the over-potential was 263 mV, the activation energy of hydrogen evolution was 45.62–45.77 kJ mol −1. Nano-crystalline WC thin film electrode had a high catalytic stability according to the result of cyclic voltammetry.
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.
