Water electrolysis with a homogeneous catalyst in an electrochemical cell

C. A. Bonino, J. J. Concepcion, James A Trainham, T. J. Meyer, J. Newman

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

[Ru(Mebimpy)(bpy)OH2]2+[Mebimpy=2,6-bis(1- methylbenzimidazol-2-yl)pyridine; bpy =2,2'-bipyridine], a homogeneous molecular catalyst for water oxidation, is examined using an electrochemical flow cell. A homogeneous catalyst can reduce corrosion by operating at near-neutral pH and is easy to replace when degraded. Traditional alkaline electrolyzers are not free of these issues. The electrochemical flow cell, which is based on a fuel-cell design, includes a zero-gap configuration to minimize ohmic losses. The homogeneous-catalyst kinetics is elucidated by means of electrochemical methods, including Tafel plots. Current efficiencies are measured from the evolved gases. Relationships between catalyst performance and concentration, and anode material are discussed.

Original languageEnglish
Title of host publicationECS Transactions
PublisherElectrochemical Society Inc.
Pages3-13
Number of pages11
Volume58
Edition2
DOIs
Publication statusPublished - 2013

Fingerprint

Electrochemical cells
Electrolysis
Catalysts
Water
Pyridine
Fuel cells
Anodes
Corrosion
Oxidation
Kinetics
Gases

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Bonino, C. A., Concepcion, J. J., Trainham, J. A., Meyer, T. J., & Newman, J. (2013). Water electrolysis with a homogeneous catalyst in an electrochemical cell. In ECS Transactions (2 ed., Vol. 58, pp. 3-13). Electrochemical Society Inc.. https://doi.org/10.1149/05802.0003ecst

Water electrolysis with a homogeneous catalyst in an electrochemical cell. / Bonino, C. A.; Concepcion, J. J.; Trainham, James A; Meyer, T. J.; Newman, J.

ECS Transactions. Vol. 58 2. ed. Electrochemical Society Inc., 2013. p. 3-13.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Bonino, CA, Concepcion, JJ, Trainham, JA, Meyer, TJ & Newman, J 2013, Water electrolysis with a homogeneous catalyst in an electrochemical cell. in ECS Transactions. 2 edn, vol. 58, Electrochemical Society Inc., pp. 3-13. https://doi.org/10.1149/05802.0003ecst
Bonino CA, Concepcion JJ, Trainham JA, Meyer TJ, Newman J. Water electrolysis with a homogeneous catalyst in an electrochemical cell. In ECS Transactions. 2 ed. Vol. 58. Electrochemical Society Inc. 2013. p. 3-13 https://doi.org/10.1149/05802.0003ecst
Bonino, C. A. ; Concepcion, J. J. ; Trainham, James A ; Meyer, T. J. ; Newman, J. / Water electrolysis with a homogeneous catalyst in an electrochemical cell. ECS Transactions. Vol. 58 2. ed. Electrochemical Society Inc., 2013. pp. 3-13
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