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

Hashemniaye-Torshizi, Reihaneh; Ashraf, Narjes; Arbab-Zavar, Mohammad Hossein; Dianat, Somayeh

doi:10.1039/c9nj02298h

New J. Chem.

2019

DOI: 10.1039/c9nj02298h

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

Reihaneh Hashemniaye-Torshizi

Narjes Ashraf

Mohammad Hossein Arbab-Zavar

et al.

Abstract: Lanthanated tungsten electrodes were shown to be green, durable, low-cost, pH-universal and efficient electrocatalysts for the hydrogen evolution reaction.

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Cited by 4 publications

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Assessing tungsten-based electrodes coated with W and Ce oxides for pH sensing applications

Díaz-Ballote,

Vega-Lizama,

López

et al. 2024

J Solid State Electrochem

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This study assessed tungsten-based materials with and without dispersed CeO2 for potential use as pH sensors. Specifically, three types of tungsten electrodes were characterized: tungsten electrodes without CeO2 but with native oxide, tungsten electrodes without CeO2 that were oxidized, and a tungsten electrode containing dispersed CeO2 that was oxidized, resulting in a mixture of WO3, CeO2, and Ce2O3. The characterization was performed using SEM/EDAX, X-ray photoelectron spectroscopy (XPS), and electrochemical techniques. The oxide coatings showed higher oxygen contents compared to native tungsten. XPS confirmed the presence of a thick layer of WO3 and cerium oxides. The electrodes exhibited good reproducibility and stability in pH measurements. A linear relationship was found between the open circuit potential and pH, with slopes of 44.9, 40.8, and 46.9 mV pH−1 for native oxide, WO3, and WO3 with CeO2 and Ce2O3, respectively. The latter showed the highest sensitivity and lowest hysteresis. The response times ranged from 14.5–23.5 s and were faster in acidic solutions. Overall, the inexpensive tungsten-based electrodes demonstrated promising capabilities for pH sensing, but in particular ceriated tungsten electrodes.

show abstract

Assessing tungsten-based electrodes coated with W and Ce oxides for pH sensing applications

Díaz-Ballote,

Vega-Lizama,

López

et al. 2024

J Solid State Electrochem

View full text Add to dashboard Cite

show abstract

Enhanced electrocatalytic hydrogen evolutions of Co(II)phthalocyanine through axially coordinated pyridine-pyrene

Attatsi

Zhu

et al. 2022

Inorganica Chimica Acta

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Surface functionalized gold electrode by axial ligand exchanged CoIIIcorroles for accelerating electrocatalyzed hydrogen evolutions

Attatsi

Zhu

2022

International Journal of Hydrogen Energy

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

Abstract: Lanthanated tungsten electrodes were shown to be green, durable, low-cost, pH-universal and efficient electrocatalysts for the hydrogen evolution reaction.

Cited by 4 publications

References 122 publications

Assessing tungsten-based electrodes coated with W and Ce oxides for pH sensing applications

Assessing tungsten-based electrodes coated with W and Ce oxides for pH sensing applications

Enhanced electrocatalytic hydrogen evolutions of Co(II)phthalocyanine through axially coordinated pyridine-pyrene

Surface functionalized gold electrode by axial ligand exchanged CoIIIcorroles for accelerating electrocatalyzed hydrogen evolutions

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