Spindle-shaped CeO2/biochar carbon with oxygen-vacancy as an effective and highly durable electrocatalyst for oxygen reduction reaction

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dc.contributor.authorBhuvanendran, N
dc.contributor.authorRavichandran, S
dc.contributor.authorKandasamy, S
dc.date.accessioned2021-06-15T10:01:18Z
dc.date.available2021-06-15T10:01:18Z
dc.date.issued2021
dc.description.abstractHighly durable and active CeO2 on biochar carbon (CeO2/BC) derived from Spirulina platensis microalgae and synthesized by simple one-pot hydrothermal treatment and further activated through pyrolysis approach. A spindle-shaped morphology of CeO2 with predominant (111) facet was evidently observed from X-ray diffraction patterns and electron microscopy images. The structural features such as high specific surface area, defect-rich carbon with N & P atoms, increased oxygen vacancy and π-electron transfer play an important role for the improved oxygen reduction reaction (ORR). The considerable amount of Ce3+ and higher proportion of pyridinic N and graphitic N species are substantially contributed to the superior ORR performance of CeO2/BC700, which surpasses other similar catalysts and competing with Pt/C. Hence, the significant kinetic ORR parameters and extended stability (no loss after 5000 potential cycles) of the CeO2/BC700 catalysts provides the promising insight to develop the rare-earth metal oxide nanostructures as a possible candidate for ORR in alkaline medium.en_US
dc.identifier.citationBhuvanendran, N. et al. (2021). Spindle-shaped CeO2/biochar carbon with oxygen-vacancy as an effective and highly durable electrocatalyst for oxygen reduction reaction. International Journal of Hydrogen Energy, 46(2), 2128-2142en_US
dc.identifier.issn03603199
dc.identifier.uri10.1016/j.ijhydene.2020.10.115
dc.identifier.urihttp://hdl.handle.net/10566/6283
dc.language.isoenen_US
dc.publisherElsevier Ltden_US
dc.subjectOxygen reduction reactionen_US
dc.subjectP-Carbonen_US
dc.subjectSpindle-shaped CeO2en_US
dc.subjectSpirulina platensis microalgaeen_US
dc.subjectStabilityen_US
dc.titleSpindle-shaped CeO2/biochar carbon with oxygen-vacancy as an effective and highly durable electrocatalyst for oxygen reduction reactionen_US
dc.typeArticleen_US

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