Journal
APPLIED SURFACE SCIENCE
Volume 574, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.apsusc.2021.151633
Keywords
Hydrogen peroxide reduction reaction; Electrocatalysis; Hybrid material; Palladium; Graphene
Categories
Funding
- Ministry of Education, Science and Technological Development of the Republic of Serbia [451-03-68/2020-14/200124]
- NATO Science for Peace and Security Programme [SPS G5550]
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In this study, the electrocatalytic reduction of hydrogen peroxide in an alkaline solution was investigated on a hybrid material based on palladium particles supported on graphene. The Pd@G exhibited pronounced electrocatalytic activity for the hydrogen peroxide reduction reaction, which involves complex electrode mechanisms and adsorption phenomena on the surface of palladium nanoparticles.
The electrocatalytic reduction of hydrogen peroxide in an alkaline solution has been studied on a hybrid material based on hydrothermally obtained palladium particles supported on graphene (Pd@G). The morphology, structure, and chemical composition of the prepared hybrid material, including spatial distribution of palladium nanoparticles, were examined by SEM, XRD, EDX, elemental mapping, XPS, FTIR, and BET. The hydrogen peroxide reduction reaction (HPRR) was studied by cyclic and square wave voltammetry in an oxygen-free and air-saturated alkaline medium. The Pd@G exhibited pronounced electrocatalytic activity for HPRR, which proceeds via complex electrode mechanisms coupled with adsorption phenomena and hydrogen peroxide disproportionation reaction as a heterogeneous chemical process on the surface of palladium nanoparticles.
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