New Journal of Chemistry, Volume (43), No (29), Year (2019-1) , Pages (11529-11542)

Title : ( Tungsten-inert gas welding electrodes as low-cost, green and pH-universal electrocatalysts for the hydrogen evolution reaction )

Authors: Reihaneh Hashemniaye Torshizi , Narjes Ashraf , Mohammad Hossein Arbab Zavar , Somayeh Dianat ,

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Abstract

Large-scale electrolytic production of hydrogen, as the most important energy carrier, requires low-costand easily available electrocatalysts. Herein, different tungsten-inert gas (TIG) welding electrodes,namely, pure tungsten (W), zirconiated tungsten (W-Zr), ceriated tungsten (W-Ce) and lanthanatedtungsten (W-La) electrodes, are introduced as low-cost, green and pH-universal electrocatalysts for thehydrogen evolution reaction (HER). The morphology, microstructure and composition of theseelectrodes have been investigated using field emission scanning electron microscopy (FE-SEM), energydispersive X-ray (EDX) and elemental mapping techniques. The electrocatalytic activity of the electrodeshas been studied under acidic, basic and neutral conditions using linear sweep voltammetry (LSV), opencircuit potential (OCP) measurements and electrochemical impedance spectroscopy (EIS) and the valuesof the onset potential (Eonset), overpotential at 10 mA cm2(Z10), Tafel slope, OCP and charge transferresistance (Rct) have been obtained for each electrode. It can be claimed that among all the studiedelectrodes, the W-La electrode shows the best electrocatalytic performance according to the values ofEonset,Z10, OCP, andRct.

Keywords

, Tungsten-inert gas welding electrodes; electrocatalysts, ; hydrogen evolution reaction
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@article{paperid:1075178,
author = {Hashemniaye Torshizi, Reihaneh and Ashraf, Narjes and Arbab Zavar, Mohammad Hossein and Somayeh Dianat},
title = {Tungsten-inert gas welding electrodes as low-cost, green and pH-universal electrocatalysts for the hydrogen evolution reaction},
journal = {New Journal of Chemistry},
year = {2019},
volume = {43},
number = {29},
month = {January},
issn = {1144-0546},
pages = {11529--11542},
numpages = {13},
keywords = {Tungsten-inert gas welding electrodes; electrocatalysts;; hydrogen evolution reaction},
}

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%0 Journal Article
%T Tungsten-inert gas welding electrodes as low-cost, green and pH-universal electrocatalysts for the hydrogen evolution reaction
%A Hashemniaye Torshizi, Reihaneh
%A Ashraf, Narjes
%A Arbab Zavar, Mohammad Hossein
%A Somayeh Dianat
%J New Journal of Chemistry
%@ 1144-0546
%D 2019

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