RTI uses cookies to offer you the best experience online. By clicking “accept” on this website, you opt in and you agree to the use of cookies. If you would like to know more about how RTI uses cookies and how to manage them please view our Privacy Policy here. You can “opt out” or change your mind by visiting: http://optout.aboutads.info/. Click “accept” to agree.
Water electrolysis with a homogeneous catalyst in an electrochemical cell
Bonino, C., Concepcion, J., Trainham, J., Meyer, T., & Newman, J. (2013). Water electrolysis with a homogeneous catalyst in an electrochemical cell. ECS Transactions, 58(2), 3-13. https://doi.org/10.1149/05802.0003ecst
[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.