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Pulse potential mediated selectivity for the electrocatalytic oxidation of glycerol to glyceric acid.

ABSTRACT: Preventing the deactivation of noble metal-based catalysts due to self-oxidation and poisonous adsorption is a significant challenge in organic electro-oxidation. In this study, we employ a pulsed potential electrolysis strategy for the selective electrocatalytic oxidation of glycerol to glyceric acid over a Pt-based catalyst. In situ Fourier-transform infrared spectroscopy, quasi-in situ X-ray photoelectron spectroscopy, and finite element simulations reveal that the pulsed potential could tailor the catalyst's oxidation and surface micro-environment. This prevents the overaccumulation of poisoning intermediate species and frees up active sites for the re-adsorption of OH adsorbate and glycerol. The pulsed potential electrolysis strategy results in a higher glyceric acid selectivity (81.8%) than constant-potential electrocatalysis with 0.7 V_RHE (37.8%). This work offers an efficient strategy to mitigate the deactivation of noble metal-based electrocatalysts.

SUBMITTER: Chen W

PROVIDER: S-EPMC10948758 | biostudies-literature | 2024 Mar

REPOSITORIES: biostudies-literature

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Pulse potential mediated selectivity for the electrocatalytic oxidation of glycerol to glyceric acid.

Chen Wei W Zhang Liang L Xu Leitao L He Yuanqing Y Pang Huan H Wang Shuangyin S Zou Yuqin Y

Nature communications 20240318 1

Preventing the deactivation of noble metal-based catalysts due to self-oxidation and poisonous adsorption is a significant challenge in organic electro-oxidation. In this study, we employ a pulsed potential electrolysis strategy for the selective electrocatalytic oxidation of glycerol to glyceric acid over a Pt-based catalyst. In situ Fourier-transform infrared spectroscopy, quasi-in situ X-ray photoelectron spectroscopy, and finite element simulations reveal that the pulsed potential could tail ...[more]

PMID: 38499522

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Dataset Information

Pulse potential mediated selectivity for the electrocatalytic oxidation of glycerol to glyceric acid.

Publications

Pulse potential mediated selectivity for the electrocatalytic oxidation of glycerol to glyceric acid.

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