Abstract
AbstractSearching desirable cost‐effective electrocatalysts for overall water splitting is of great importance for the hydrogen production industry. Here a facile synthesis of trimetallic carbon nanoflower electrocatalysts is reported which are derived from Co2+/Fe2+/Ni2+ ratio adjustable metal–organic frameworks (MOFs). The unique nanosheet‐assembled multiscale nanoflower morphology can enlarge the catalyst/electrolyte contact area, and the synergistic electronic effects between trimetallic components endow the trimetallic carbon nanoflower electrocatalysts with more oxygen vacancies and a higher degree of graphitization of carbon, thus showing excellent activity. The optimized Co0.2Fe0.8Ni‐OCNF reaches a current density of 10 mA cm−2 at low overpotential of 291 mV with a very small Tafel slope of 36.1 mV dec−1 and 1.65 V@10 mA cm−2 for a two‐electrode water electrolysis in an alkaline solution, outperforming the commercial IrO2 electrocatalysts. The results may pave the way to the development of more efficient multicomponent nanosheet‐assembled multiscale nanomaterials for various catalytic applications.
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.
