Altered Electrochemistry at Graphene- or Alumina-Modified Electrodes: Catalysis vs Electrocatalysis in Multistep Electrode Processes

作者：Poon Jeffrey; Lin Qianqi; Batchelor McAuley Christopher^*; Salter Chris; Johnston Colin; Compton Richard G

来源：Journal of Physical Chemistry C, 2015, 119(24): 13777-13784.

DOI：10.1021/acs.jpcc.5b04335

The voltammetric behavior of glassy carbon electrodes modified with either submonolayer quantities of alumina or graphene is examined with respect to the two-electron, two-proton reaction of catechol (1,2-dihydroxybenzene) in aqueous solution. While the voltammetric behavior superficially hints at a change of electron transfer rate, an alternative explanation in terms of the changed thermodynamics of the intermediate species is advanced and rationalized.

• 出版日期2015-6-18