A New Composite Electrode Applied for Studying the Electrochemistry of Insoluble Particles: α‐HgS | Zendy

Yang Minjun | Zendy; Compton Richard G. | Zendy

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A New Composite Electrode Applied for Studying the Electrochemistry of Insoluble Particles: α‐HgS

Author(s) -

Yang Minjun,

Compton Richard G.

Publication year - 2018

Publication title -

chemistry – a european journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.687

H-Index - 242

eISSN - 1521-3765

pISSN - 0947-6539

DOI - 10.1002/chem.201801609

Subject(s) - polyvinylidene fluoride , carbon black , electrochemistry , composite number , mercury (programming language) , electrode , redox , metal , materials science , inorganic chemistry , fluoride , carbon fibers , ion , metal ions in aqueous solution , chemical engineering , chemistry , composite material , metallurgy , organic chemistry , polymer , natural rubber , computer science , programming language , engineering

The redox chemistry of solid α‐HgS particles is revealed using a carbon/PVDF composite containing α‐HgS, carbon black, polyvinylidene fluoride (PVDF). The electrochemical behaviour of the carbon/PVDF composite is first characterised with three water insoluble organic solids. Then the reduction of solid α‐HgS particles is investigated and found to occur at a high negative potential, −1.82 V versus saturated mercury sulphate reference electrode, to form metallic mercury and sulphide ions. The subsequent oxidation of metallic mercury and sulphide occurs at +0.24 and −0.49 V versus MSE respectively.

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