Ag-doped Cu nanosheet arrays for efficient hydrogen evolution reaction

A zinc-infiltration process was adopted to prepare silver-doped copper nanosheet arrays. The larger atomic radius of Ag introduces tensile stress, which lowers the electron density at the s-orbitals of Cu atoms and improves the adsorption capability for hydrogen atoms. As a catalyst for hydrogen evo...

Full description

Saved in:
Bibliographic Details
Published inChemical communications (Cambridge, England) Vol. 59; no. 43; pp. 6533 - 6535
Main Authors Kong, Ling-Jie, Xie, Ya-Meng, Chen, Xing-Yu, Xi, Cong, Zhang, Fei-Fei, Wang, Min, Shang, Long, Huang, Yuan, Du, Xi-Wen, Kulinich, Sergei A
Format Journal Article
LanguageEnglish
Published England Royal Society of Chemistry 25.05.2023
Subjects
Arrays
Atomic radius
Copper
Electron density
Hydrogen atoms
Hydrogen evolution reactions
Metal foils
Nanosheets
Silver
Tensile stress
Online AccessGet full text

Cover

More Information
Summary:A zinc-infiltration process was adopted to prepare silver-doped copper nanosheet arrays. The larger atomic radius of Ag introduces tensile stress, which lowers the electron density at the s-orbitals of Cu atoms and improves the adsorption capability for hydrogen atoms. As a catalyst for hydrogen evolution, these silver doped copper nanosheet arrays achieved a low overpotential of 103 mV at 10 mA cm −2 in 1 M KOH, which is 604 mV lower than that of pure copper foil. A zinc-infiltration process was adopted to prepare silver-doped copper nanosheet arrays.
Bibliography:Electronic supplementary information (ESI) available: Details of experimental procedures, data analysis, and DFT calculations. See DOI
https://doi.org/10.1039/d3cc01365k
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:1359-7345
1364-548X
DOI:10.1039/d3cc01365k