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Bifunctional rare metal-free electrocatalysts synthesized entirely from biomass resources.

ABSTRACT: The oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) are important processes for various energy devices, including polymer electrolyte fuel cells, rechargeable metal-air batteries, and water electrolyzers. We herein report the preparation of a rare metal-free and highly efficient ORR/OER electrocatalyst by calcination of a mixture of blood meal and ascidian-derived cellulose nanofibers. The obtained carbon alloys showed high ORR/OER performances and proved to be promising electrocatalysts. The carbon alloys synthesized entirely from biomass resources not only lead to a new electrocatalyst fabrication process but also contribute to CO₂ reduction and the realization of a good life-cycle assessment value in fabrication of a sustainable energy device.

SUBMITTER: Yabu H

PROVIDER: S-EPMC8774140 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature

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Bifunctional rare metal-free electrocatalysts synthesized entirely from biomass resources.

Yabu Hiroshi H Ishibashi Kosuke K Grewal Manjit Singh MS Matsuo Yasutaka Y Shoji Naoki N Ito Koju K

Science and technology of advanced materials 20220118 1

The oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) are important processes for various energy devices, including polymer electrolyte fuel cells, rechargeable metal-air batteries, and water electrolyzers. We herein report the preparation of a rare metal-free and highly efficient ORR/OER electrocatalyst by calcination of a mixture of blood meal and ascidian-derived cellulose nanofibers. The obtained carbon alloys showed high ORR/OER performances and proved to be promising elec ...[more]

PMID: 35069011

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