Anion-selective materials with 1,4-diazabicyclo[2.2.2]octane functional groups for advanced alkaline water electrolysis
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389013%3A_____%2F17%3A00477342" target="_blank" >RIV/61389013:_____/17:00477342 - isvavai.cz</a>
Alternative codes found
RIV/60461373:22310/17:43913637
Result on the web
<a href="http://dx.doi.org/10.1016/j.electacta.2017.07.165" target="_blank" >http://dx.doi.org/10.1016/j.electacta.2017.07.165</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.electacta.2017.07.165" target="_blank" >10.1016/j.electacta.2017.07.165</a>
Alternative languages
Result language
angličtina
Original language name
Anion-selective materials with 1,4-diazabicyclo[2.2.2]octane functional groups for advanced alkaline water electrolysis
Original language description
In this study a novel alkaline polymer electrolyte membrane is presented, based on polystyrene-block-poly(ethylene-ran-butylene)-block-polystyrene (PSEBS) functionalized by the 1,4-diazabicyclo[2.2.2]octane (DABCO) to be used as an electrode compartment separator as well as a catalytic layer binder in the alkaline water electrolysis process with the aim to reduce the concentration of KOH in the liquid electrolyte and to allow the construction of an efficient zero gap-type cell. This material was selected due to the promising properties of both individual components resulting from their molecular structure. The prepared membrane was thoroughly characterized with regard to its stability in an alkaline environment. The prepared membrane showed an ion-exchange capacity value of 0.76 mmol g-1dry membrane and ionic conductivity of 7.5 S m-1 at 30 °C. Excellent membrane durability was confirmed for a KOH concentration range up to 10 wt.% and temperature up to 50 °C. Subsequently, the polymer electrolyte was tested in a laboratory alkaline water electrolyser using 10 wt.% KOH as a circulating medium showing promising current density of 150 mA cm-2 at 40 °C. In a 150-hour experiment the PSEBS functionalized by DABCO manifested very good stability and high potential for optimization for this process as it showed no signs of chemical degradation.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10405 - Electrochemistry (dry cells, batteries, fuel cells, corrosion metals, electrolysis)
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Electrochimica acta
ISSN
0013-4686
e-ISSN
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Volume of the periodical
248
Issue of the periodical within the volume
10 September
Country of publishing house
GB - UNITED KINGDOM
Number of pages
9
Pages from-to
547-555
UT code for WoS article
000409525300060
EID of the result in the Scopus database
2-s2.0-85026731806