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Do carbon nanotubes catalyse bromine/bromide redox chemistry?

ABSTRACT: The redox chemistries of both the bromide oxidation and bromine reduction reactions are studied at single multi-walled carbon nanotubes (MWCNTs) as a function of their electrical potential allowing inference of the electron transfer kinetics of the Br₂/Br^- redox couple, widely used in batteries. The nanotubes are shown to be mildly catalytic compared to a glassy carbon surface but much less as inferred from conventional voltammetry on porous ensembles of MWCNTs where the mixed transport regime masks the true catalytic response.

SUBMITTER: Kaliyaraj Selva Kumar A

PROVIDER: S-EPMC8372536 | biostudies-literature | 2021 Aug

REPOSITORIES: biostudies-literature

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Do carbon nanotubes catalyse bromine/bromide redox chemistry?

Kaliyaraj Selva Kumar Archana A Miao Ruiyang R Li Danlei D Compton Richard G RG

Chemical science 20210713 32

The redox chemistries of both the bromide oxidation and bromine reduction reactions are studied at single multi-walled carbon nanotubes (MWCNTs) as a function of their electrical potential allowing inference of the electron transfer kinetics of the Br2/Br- redox couple, widely used in batteries. The nanotubes are shown to be mildly catalytic compared to a glassy carbon surface but much less as inferred from conventional voltammetry on porous ensembles of MWCNTs where ...[more]

PMID: 34476067

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