Grafting redox-active molecules on graphene oxide through a diamine linker: Length optimization for electron transfer

Rizwan Khan, Yuta Nishina

Research output: Contribution to journalArticlepeer-review

Abstract

A redox-active molecule is grafted on graphene oxide (GO) via successive reactions. In the first step, GO is modified with diamine, which acts as a linker for the redox-active molecule. In the second step, the redox-active molecule is attached to the amino group of the linker by amide bond formation. Through these processes GO is partially reduced, enhancing its electrochemical properties. The structure of the functionalized GO is characterized by XPS, TGA, FTIR, and CV, and applied for electrodes in supercapacitors (SCs). The distance and direction of the redox-active molecule on the electrode affect the SC performance; ethylene diamine is the most promising linker to efficiently transfer electrons from the redox-active molecule to the electrode surface.

Original languageEnglish
Pages (from-to)1874-1878
Number of pages5
JournalDalton Transactions
Volume51
Issue number5
DOIs
Publication statusPublished - Feb 7 2022

ASJC Scopus subject areas

  • Inorganic Chemistry

Fingerprint

Dive into the research topics of 'Grafting redox-active molecules on graphene oxide through a diamine linker: Length optimization for electron transfer'. Together they form a unique fingerprint.

Cite this