Abstract
The simultaneous utilization of morphological engineering, electronic structure modulation and heterojunction formation to improve the HER catalytic performance of the TMNs in alkaline media remain challenging. Herein, one-two-dimensional in situ Mo-doped Co4N/Co heterostructures on three-dimensional nickel foam (NF) (denoted NF/MCC) is developed by simply tuning the chemical composition of ammonium molybdate tetrahydrate via hydrothermal and ammonia treatment. The Mo incorporation in the hybrid exhibits the function of controllable one-two-dimensional morphology, fast charge transport channels, and increasing the electrochemically active surface area. The as-prepared NF/MCC exhibits the highest HER activity with lower overpotentials of 29 mV @ 10 mA cm−2 and Tafel slope of 40 mV dec−1 compared to the pristine NF/Co4N (171 mV vs. 139 mV dec−1) and even close to the benchmark Pt/C/NF catalysts (24 mV vs. 36 mV dec−1) in 1 M KOH. This work can bring a new prospect for fabricating highly-active and new structure 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.
