Abstract
Preparation of hierarchal structures of various dimensions in a single in-situ step is extremely challenging. However, they have gained huge attention for energy storage to electrocatalysis. Here, self-composed cerium iron oxide hierarchal structures are prepared using a novel in-situ process using urea as a ligand. The formed hierarchal structures are made of sheets, rods, and spherical particles. The deposition of the formed spherical particles on the surface of sheets and rods is observed. The prepared cerium iron oxide hierarchal structures are used as a catalyst for the electrooxidation of methanol. As an electrocatalyst, hierarchal structures showed a high specific current density of ∼274 mA cm–2. The observed onset potential for the cerium iron oxide is ∼0.44 V. The retention of ∼93.5% of the initial current density after 5000 consecutive seconds is observed. The iron present in cerium iron oxide hierarchal structures increases oxygen vacancies responsible for the observed superior methanol oxidation reaction activity. Results confirmed that hierarchal cerium iron oxide structures showed higher electrocatalytic activity than pristine cerium oxide and iron oxide materials.
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.
