Decomposition of a Potassium-Based Supersaturated Zincate Solution in Electrolytes with Reduced Zinc Solubility
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26220%2F20%3APU138359" target="_blank" >RIV/00216305:26220/20:PU138359 - isvavai.cz</a>
Result on the web
<a href="https://iopscience.iop.org/article/10.1149/09901.0123ecst/pdf" target="_blank" >https://iopscience.iop.org/article/10.1149/09901.0123ecst/pdf</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1149/09901.0123ecst" target="_blank" >10.1149/09901.0123ecst</a>
Alternative languages
Result language
angličtina
Original language name
Decomposition of a Potassium-Based Supersaturated Zincate Solution in Electrolytes with Reduced Zinc Solubility
Original language description
The decomposition rate of supersaturated zincate electrolytes based on 6 mol·dm-3 KOH was measured and the effect of additives used for reducing zincate solubility (KF, K2CO3, K3PO4) was evaluated. The electrolytes were studied after being aged for 5 years at room temperature. Powder morphology was obtained as a result of recrystallization processes were evaluated. Results indicate that the presence of 1 mol·dm-3 PO43- ions reduced the speed of decomposition to less than half. A study of ZnO recrystallization revealed the changes in particle sizes for all additives. Despite the long time of recrystallization processes, ZnO particles grew to different sizes depending on the type of low solubility electrolyte (LSE) used. While the presence of PO43- and F- ions promote the particle growth in all directions and thus influence both particle lengths and widths. The presence of carbonate ions CO32- reduce the particle sizes and thus could contribute to the growth of a larger active area of electrodes after long-term aging.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
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OECD FORD branch
10405 - Electrochemistry (dry cells, batteries, fuel cells, corrosion metals, electrolysis)
Result continuities
Project
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Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
ECS Transactions
ISBN
978-80-214-5889-5
ISSN
1938-5862
e-ISSN
1938-6737
Number of pages
7
Pages from-to
123-129
Publisher name
Neuveden
Place of publication
Neuveden
Event location
Brno
Event date
Sep 6, 2020
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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