Title : ( Direct electrodeposition of platinum nanoparticles@graphene oxide@nickel-copper@nickel foam electrode as a durable and cost-effective catalyst with remarkable performance for electrochemical hydrogen evolution reaction )
Authors: N. Lotfi , T. Shahrabi , Y. Yaghoubinezhad , Ghasem Barati Darband ,Abstract
Development of high-performance catalyst materials with superior activity is among the high challenges in hydrogen production. In this study, the platinum nanoparticles@graphene oxide@nickel-copper@nickel foam (Pt@GO@Ni-Cu@NF) electrode was fabricated using the electrodeposition method. The synthesized electrode demonstrated a high electrocatalytic activity and superior stability in alkaline solution. The required overpotentials for delivering 10, 20, and 100 mA cm−2 were 31, 50, and 128 mV vs. RHE, respectively. The hydrogen evolution reaction (HER) mechanism, affording to the Tafel slope (51 mV dec−1), was Volmer-Heyrovsky mechanism. The electrode was stable at 100 mA cm−2 after 50 h. The high stability and electrocatalytic activity for HER of the Pt@GO@Ni-Cu@NF electrode were assigned to the dendrite Ni-Cu structure and the high electrochemical surface area of the GO nanolayers (2600), as well as its hydrophilic properties, intrinsic properties of the Pt nanoparticles with a dimension of 20–40 nm, and lower H2 bubble size. Because of the excellent electrocatalytic activity and stability, this study introduces an effective electrode material for the large-scale hydrogen production industry.
Keywords
, Hydrogen evolution reactionPt nanoparticlesGO nanolayersElectrocatalytic stabilityVolmer, Heyrovsky mechanism@article{paperid:1087368,
author = {N. Lotfi and T. Shahrabi and Y. Yaghoubinezhad and Barati Darband, Ghasem},
title = {Direct electrodeposition of platinum nanoparticles@graphene oxide@nickel-copper@nickel foam electrode as a durable and cost-effective catalyst with remarkable performance for electrochemical hydrogen evolution reaction},
journal = {Applied Surface Science},
year = {2020},
volume = {505},
number = {505},
month = {March},
issn = {0169-4332},
pages = {144571--144571},
numpages = {0},
keywords = {Hydrogen evolution reactionPt nanoparticlesGO nanolayersElectrocatalytic stabilityVolmer-Heyrovsky mechanism},
}
%0 Journal Article
%T Direct electrodeposition of platinum nanoparticles@graphene oxide@nickel-copper@nickel foam electrode as a durable and cost-effective catalyst with remarkable performance for electrochemical hydrogen evolution reaction
%A N. Lotfi
%A T. Shahrabi
%A Y. Yaghoubinezhad
%A Barati Darband, Ghasem
%J Applied Surface Science
%@ 0169-4332
%D 2020