Preparation of graphite carbon/Prussian blue analogue/palladium (GC/PBA/pd) synergistic-effect electrocatalyst with high activity for ethanol oxidation reaction. (1st February 2022)

• Record Type: Journal Article
• Authors: Yu, Mei; Li, Zesheng; Shi, Hui; Lin, Songwei; Zhang, Xiaohui; Mo, Fuwang; Lai, Feiyan; Liang, Dongmei
• Is Part Of: International journal of hydrogen energy. Volume 47:Number 10(2022)
• Page Start: 6721
• Page End: 6733
• Publication Date: 2022-02-01
• Subjects: Graphite carbon -- Prussian blue analogue -- Palladium -- Synergistic effect -- Ethanol oxidation reaction; Hydrogen as fuel -- Periodicals; Hydrogène (Combustible) -- Périodiques; Hydrogen as fuel; Periodicals; 665.81
• DOI: 10.1016/j.ijhydene.2021.12.059
• Languages: English
• ISSNs: 0360-3199

Abstract

Abstract: In this paper, newly graphite carbon/Prussian blue analogue/palladium (GC/PBA/Pd) synergistic-effect electrocatalyst for ethanol oxidation reaction were developed, with Co-based PBA (Co3 [Co(CN)6 ]2 ) as a co-catalyst. Structural analysis shows that the Co3 (Co(CN)6 )2 nanoparticles were highly dispersed and inlaid on surface of GC nanosheets with outstanding structural stability. The GC/Co3 (Co(CN)6 )2 /Pd electrocatalyst exhibits significantly enhanced electrocatalytic activity towards ethanol oxidation with a maximum mass activity of 2644 A g −1 Pd GC/Pd, which is more than double that of GC/Pd electrocatalyst (1249 A g −1 ). Excellent electrochemical stability is also demonstrated for this GC/Co3 (Co(CN)6 )2 /Pd electrocatalyst. The enhanced electrocatalytic activity can be attributed to the synergistic effects of GC support and Co3 (Co(CN)6 )2 promoter on the Pd electrocatalysts, in which Co3 (Co(CN)6 )2 acts as a co-catalyst and GC acts as a conductive support. Highlights: Co3 (Co(CN)6 )2 nanoparticles inlaid on surface of GC nanosheets was successfully fabricated. GC/Co3 (Co(CN)6 )2 /Pd synergistic-effect electrocatalyst for ethanol oxidation was developed. Excellent electrocatalytic activity and durability were demonstrated for the synergistic catalyst. Synergistic effects from GC support and Co3 (Co(CN)6 )2 promoter on Pd catalyst was discussed.