Pd Doped Co3O4 Loaded on Carbon Nanofibers as Highly Efficient Free-Standing Electrocatalyst for Oxygen Reduction and Oxygen Evolution Reactions
Ruyue Wang, Deshuang Hu, Peng Du, Xiaodi Weng, Haolin Tang, Ruiming Zhang, Wei Song, Sen Lin, Kai Huang, Ru Zhang, Yonggang Wang, Dongyu Fan, Xuchao Pan, Ming Lei
Abstract
Self-supporting electrodes usually show excellent electrocatalytic performance which does not require coating steps, additional polymer binders, and conductive additives. Rapid in situ growth of highly active ingredient on self-supporting electric conductors is identified as a straight forward path to prepare binder-free and integrated electrodes. Here, Pd-doped Co 3 O 4 loaded on carbon nanofiber materials through electrospinning and heat treatment was efficiently synthesized, and used as a free-standing electrode. Benefiting from its abundant active sites, high surface area and effective ionic conduction capability from three-dimensional (3D) nanofiber framework, Pd-Co 3 O 4 @CNF works as bifunctional oxygen electrode and exhibits superior activity and stability superior to commercial catalysts.