DOI: 10.1002/cssc.201200262. Evaluation of the Catalytic Performance of Gas‐Evolving Electrodes using Local Electrochemical Noise Measurements

Evaluation of the Catalytic Performance of Gas‐Evolving Electrodes using Local Electrochemical Noise Measurements

10.1002/cssc.201200262

Crossref journal-article

Wiley

ChemSusChem (311)

Abstract

AbstractCharacterization of gas evolution reactions at the electrode/electrolyte boundary is often difficult due to the dynamic behavior of interfacial processes. Electrochemical noise measurements determined by scanning electrochemical microscopy were used to characterize Cl2 evolution at gas‐evolving electrodes (GEEs). Analysis of the electrochemical noise is a powerful method to evaluate the efficiency of the catalyst layer at a GEE. The high sensitivity of the developed measurement system enabled accurate monitoring of the current fluctuations caused by gas‐bubble detachment from the electrode surface. Fourier transform analysis of the obtained current responses allows extraction of the characteristic frequency, which is the main parameter of the macrokinetics of GEEs. The characteristic frequency was used as part of a methodology to evaluate the catalyst performance and, in particular, to estimate the fraction of the catalyst layer that is active during the gas evolution reaction.

Bibliography

Zeradjanin, A. R., Ventosa, E., Bondarenko, A. S., & Schuhmann, W. (2012). Evaluation of the Catalytic Performance of GasâEvolving Electrodes using Local Electrochemical Noise Measurements. ChemSusChem, 5(10), 1905â1911. Portico.

Authors 4

Aleksandar R. Zeradjanin (first)
Edgar Ventosa (additional)
Alexander S. Bondarenko (additional)
Wolfgang Schuhmann (additional)

References 29 Referenced 61

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{'key': 'e_1_2_6_14_2', 'first-page': '23', 'volume-title': 'Measurements and Correction of Electrolyte Resistance in Electrochemical Tests', 'author': 'Hack H. P.', 'year': '1990'} / Measurements and Correction of Electrolyte Resistance in Electrochemical Tests by Hack H. P. (1990)
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Dates

Type	When
Created	12 years, 11 months ago (Sept. 23, 2012, 7 p.m.)
Deposited	1 year, 10 months ago (Oct. 16, 2023, 1:13 a.m.)
Indexed	1 hour, 57 minutes ago (Sept. 6, 2025, 4:23 p.m.)
Issued	12 years, 11 months ago (Sept. 23, 2012)
Published	12 years, 11 months ago (Sept. 23, 2012)
Published Online	12 years, 11 months ago (Sept. 23, 2012)
Published Print	12 years, 11 months ago (Oct. 1, 2012)

Funders 0

None

BibTeX

@article{Zeradjanin_2012, title={Evaluation of the Catalytic Performance of Gas‐Evolving Electrodes using Local Electrochemical Noise Measurements}, volume={5}, ISSN={1864-564X}, url={http://dx.doi.org/10.1002/cssc.201200262}, DOI={10.1002/cssc.201200262}, number={10}, journal={ChemSusChem}, publisher={Wiley}, author={Zeradjanin, Aleksandar R. and Ventosa, Edgar and Bondarenko, Alexander S. and Schuhmann, Wolfgang}, year={2012}, month=sep, pages={1905–1911} }

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