| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 179676 | Electrochemistry Communications | 2012 | 4 Pages |
Cobalt[tetrakis(o-aminophenyl)porphyrin] (CoTAPP) was covalently anchored (CA) onto the surface of three carbon nanomaterials (CNMs; graphene, single-walled carbon nanotubes (SWCNT), and multi-walled carbon nanotubes (MWCNT)) via diazonium salt reactions, which is a simple and effective method to improve the electrocatalytic activity of CoTAPP for combination with CNMs. The electrocatalytic reduction of O2 on glassy carbon electrodes (GCEs) modified with these CoTAPP-anchored CNMs established a pathway of four-electron transfer reductions to H2O. Among the CoTAPP-anchored CNMs, anchored graphene with CoTAPP showed the best electro-catalytic effect and the most efficient electrocatalytic performance for oxygen reduction reaction (ORR) without any precious metals.
► CoTAPP was covalently anchored on CNMs (CA-CNMs-CoTAPP) via diazonium salt reactions. ► Electrocatalytic acticivity were established by oxygen reduction reaction. ► CA-CNMs-CoTAPP significantly improved electrocatalytic effect.
