Abstract
Phase pure, nanostructured V, Mo and W nitrides and carbides were synthesized and characterized in aqueous KOH and H2SO4 electrolytes. Capacitances for most of the materials exceeded that expected for double layer charging and suggested a pseudocapacitive storage mechanism. With the exception of β-Mo2C, the materials were stable in KOH and/or H2SO4 electrolytes. Capacitances for VN in KOH and γ-Mo2N in H2SO4 were the highest and exceeded 200Fg−1. The charge-storage species were interrogated using an ion isolation method. The results provide unambiguous evidence that OH− was the principal charge storage species responsible for the pseudocapacitance demonstrated for VN in KOH while H+ was the principal species for γ-Mo2N in H2SO4.
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.
