High activity of NiCo2O4 promoted Pt on three-dimensional graphene-like carbon for glycerol electrooxidation in an alkaline medium

Bo-Cai Liu; Shao-Li Chen; Xiao-Yu Ling; Qiao-Xian Li; Chang-Wei Xu; Zi-Li Liu

doi:10.1039/c9ra09896h

High activity of NiCo₂O₄ promoted Pt on three-dimensional graphene-like carbon for glycerol electrooxidation in an alkaline medium

RSC Adv. 2020 Jun 30;10(41):24705-24711. doi: 10.1039/c9ra09896h. eCollection 2020 Jun 24.

Authors

Bo-Cai Liu¹, Shao-Li Chen¹, Xiao-Yu Ling¹, Qiao-Xian Li¹, Chang-Wei Xu¹, Zi-Li Liu²

Affiliations

¹ School of Chemistry and Chemical Engineering, Guangzhou University Guangzhou 51006 China cwxu@gzhu.edu.cn.
² Guangzhou Key Laboratory for New Energy and Green Catalysis, Guangzhou University Guangzhou 510006 China gzdxlzl@163.com.

Abstract

Spinel oxide NiCo₂O₄ supported on a three-dimensional hierarchically porous graphene-like carbon (3D HPG) material has been firstly used to enhance the activity of Pt for glycerol electrooxidation. The addition of NiCo₂O₄ into the Pt/HPG catalyst can significantly improve the catalytic performance for glycerol oxidation. When NiCo₂O₄ is added to the Pt/HPG catalyst, the onset potential is 25 mV more negative than that on the Pt/HPG catalyst without NiCo₂O₄. The current density at -0.3 V on the Pt-NiCo₂O₄ (wt 10 : 1)/HPG electrode is 1.3 times higher than that on the Pt (30 wt%)/HPG electrode. The Pt-NiCo₂O₄ electrode presented in this work shows great potential as an electrocatalyst for glycerol electrooxidation in an alkaline medium.