Publication:
Synthesis of metallic copper nanowires using dielectric barrier discharge plasma and their application in hydrogen evolution reaction

Placeholder

Departments

School / College / Institute

Program

KU-Authors

KU Authors

Co-Authors

Butt, Faaz Ahmed
Anwar, Mustafa

Publication Date

Language

Embargo Status

Journal Title

Journal ISSN

Volume Title

Alternative Title

Abstract

In this study, metallic copper (Cu) nanowires are synthesized by reducing thermally synthesized CuO nanowires under an indigenously developed hydrogen plasma system. The X-ray diffraction (XRD) results of the plasma-synthesized nanowires indicate the presence of metallic copper [(111) and (200)] and the field emission scanning electron microscopy (FESEM) further affirms the findings by presenting a stark difference in contrast of the nanowires before and after plasma treatment with diameters of 50 and 100 nm, respectively. The nanowires are studied for hydrogen evolution reaction in a neutral medium and they show excellent performance than the previously reported studies on bulk copper, with an overpotential of 210 mV at a current density of 10 mA/cm(2) and an exchange current density of 60 exp-5 A/cm(2) which is an order of magnitude larger than the reported values on bulk copper. X-ray photoelectron spectroscopy (XPS) and Raman spectroscopy indicates that the surface of the nanowires is highly rich in metallic copper resulting in better electrochemical performance of the metallic Cu nanowires in a neutral environment.

Source

Publisher

Pergamon-Elsevier Science Ltd

Subject

Chemistry, physical and theoretical, Electrochemistry, Energy, Fuel

Citation

Has Part

Source

International Journal Of Hydrogen Energy

Book Series Title

Edition

DOI

10.1016/j.ijhydene.2021.03.020

item.page.datauri

Link

Rights

Copyrights Note

Endorsement

Review

Supplemented By

Referenced By

0

Views

0

Downloads

View PlumX Details