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Low-cost CoFe₂O₄/biomass carbon hybrid from metal-enriched sulfate reducing bacteria as an electrocatalyst for water oxidation.

ABSTRACT: The development of electrocatalysts for the Oxygen Evolution Reaction (OER) requires extensive and challenging research for the water splitting and fuel cell applications. Herein, we report a low-cost CoFe₂O₄/biomass carbon (CFO@BC/Zn) hybrid from Co-enriched Sulfate Reducing Bacteria (Co-SRB) as an electrocatalyst for OER. The electrocatalyst exhibits a low potential of 1.53 V at a current density 10 mA cm^-2 and Tafel slope of 86 mV dec^-1. This method does not require high-cost or long periods of preparation. The density-functional theory (DFT) calculations show a small barrier for oxygen conversion on Fe³⁺ of CFO (100) surface. The synthesis of CFO@BC/Zn may be a new approach for obtaining low-priced electrocatalysts for OER.

SUBMITTER: Bi S

PROVIDER: S-EPMC9081556 | biostudies-literature | 2018 Jun

REPOSITORIES: biostudies-literature

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Low-cost CoFe2O4/biomass carbon hybrid from metal-enriched sulfate reducing bacteria as an electrocatalyst for water oxidation.

Bi Songhu S Li Jingde J Zhong Qin Q Chen Chuntan C Zhang Qiyi Q Yao Yongyi Y

RSC advances 20180621 40

The development of electrocatalysts for the Oxygen Evolution Reaction (OER) requires extensive and challenging research for the water splitting and fuel cell applications. Herein, we report a low-cost CoFe2O4/biomass carbon (CFO@BC/Zn) hybrid from Co-enriched Sulfate Reducing Bacteria (Co-SRB) as an electrocatalyst for OER. The electrocatalyst exhibits a low potential of 1.53 V at a current density 10 mA cm-2 and Tafel slope of 86 mV dec-1. This method ...[more]

PMID: 35539754

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