Polymer anion-selective membrane for electrolytic water splitting: the impact of a liquid electrolyte composition on the process parameters and long-term stability

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389013%3A_____%2F14%3A00427362" target="_blank" >RIV/61389013:_____/14:00427362 - isvavai.cz</a>
Alternative codes found
RIV/60461373:22310/14:43897597
Result on the web
<a href="http://dx.doi.org/10.1016/j.ijhydene.2014.01.086" target="_blank" >http://dx.doi.org/10.1016/j.ijhydene.2014.01.086</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.ijhydene.2014.01.086" target="_blank" >10.1016/j.ijhydene.2014.01.086</a>

Result language
angličtina
Original language name
Polymer anion-selective membrane for electrolytic water splitting: the impact of a liquid electrolyte composition on the process parameters and long-term stability
Original language description
In the present study the impact of KOH replacement by a NaHCO3 or Na2CO3 solution on the performance of alkaline water electrolysis and the life-time of an anion-selective polymer electrolyte was assessed. In the first instance, the impact of the electrolyte composition on the kinetics of the electrode reactions was studied. Subsequently the ionic conductivity of the membrane, in the form of individual anions, and the efficiency of the alkaline water electrolysis process were evaluated by means of electrochemical impedance spectroscopy and a laboratory single-cell alkaline water electrolyzer. The anion used was observed to make a significant impact both on the ionic conductivity as well as on the kinetics of the anode reaction, resulting in reduced electrolysis efficiency. A stability test revealed kinetics of chemical degradation of the polymer anion-selective membrane in a Na2CO3 solution similar to those in a KOH environment at 70 °C. An alternative approach of decreasing the temper
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
CD - Macromolecular chemistry
OECD FORD branch
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Project
<a href="/en/project/FR-TI2%2F442" target="_blank" >FR-TI2/442: Research and development of advanced hydrogen technologies for power industry and transport</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2014
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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