One‐step Solvent‐free Synthesis and Grafting of Diazonium Ions at Glassy Carbon Electrodes | Zendy

Via Garrhett G. | Zendy; Shugart Chelsea L. | Zendy; Melnyk Sophia L. | Zendy; Hupman Stephanie R. | Zendy; Cline Kristin K. | Zendy

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One‐step Solvent‐free Synthesis and Grafting of Diazonium Ions at Glassy Carbon Electrodes

Author(s) -

Via Garrhett G.,

Shugart Chelsea L.,

Melnyk Sophia L.,

Hupman Stephanie R.,

Cline Kristin K.

Publication year - 2018

Publication title -

electroanalysis

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.574

H-Index - 128

eISSN - 1521-4109

pISSN - 1040-0397

DOI - 10.1002/elan.201800407

Subject(s) - grafting , glassy carbon , cyclic voltammetry , chemistry , inorganic chemistry , amine gas treating , solvent , electrode , diazonium compounds , electrochemistry , polymer chemistry , organic chemistry , polymer

A one‐step method for combined diazonium ion synthesis and electrode grafting was developed. Diazonium salts were synthesized by using a glassy carbon electrode to grind together a water paste of aryl amine, p ‐toluenesulfonic acid, and sodium nitrite. Diazonium ion formation was verified by Raman spectroscopy and by a color change upon reaction of the paste with 2‐naphthol. Cyclic voltammetry after grinding electrodes showed characteristic peaks for grafted groups. Diazonium ion synthesis and grafting was achieved with amines including p ‐nitroaniline, 2‐aminoanthraquinone, and 5‐amino‐2‐nitrobenzoic acid.

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