Hybrid inorganic-organic proton conducting membranes for fuel cells and gas sensors
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388980%3A_____%2F07%3A00096650" target="_blank" >RIV/61388980:_____/07:00096650 - isvavai.cz</a>
Alternative codes found
RIV/60461373:22310/07:00018215 RIV/60461373:22310/07:00020251
Result on the web
—
DOI - Digital Object Identifier
—
Alternative languages
Result language
angličtina
Original language name
Hybrid inorganic-organic proton conducting membranes for fuel cells and gas sensors
Original language description
We developed new fast proton conducting membranes based on a hybrid inorganic-organic phosphosilicate polymer synthesized from othophosphoric acid, dichlorodimethylsi lane, and tetraethoxysilane. The membranes were amorphous, translucent, and flexible. Ahigh concentration of -OH groups and short distances between them promoted fast proton conductivity in dry atmosphere at increased temperatures. The proton conductivity was measured using the electrochemical impedance spectroscopy. Its value increased with rising temperature following the Arrhenius dependence with the activation energy 20 kJ/mol. In dry conditions at 120 degrees C, the conductivity was 1.6S/m. The cell performance significantly improved with increasing temperature. We expect the application of our membrane in intermediate temperature fuel cells and gas sensors operating in dry conditions.
Czech name
Hybridní anorganicko . organické protonově vodivé membrány pro palivové články a plynové sensory
Czech description
Vyvinuli jsme membrány s vysokou protonovou vodivostí na bázi hybridních polymerů syntetizovaných z orthofosforečné kyseliny, dichlorodimethylsilanu a detraethoxysilanu. Membrány byly amorfní, průsvitné a ohebné. V suchém stavu byla jejich měrná vodivost1,65 S/m při 120 stních C. Byly zchopny činnosti v palivovém člnku H2 ? O2 při eplotách 100 až 130 stupňů C. Byly dále testovány v sensorech s TiHx elektrodou pro detekci složení suchých plynů obsahujících H2 nebo O2 nad 100 stupňů C.
Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
CA - Inorganic chemistry
OECD FORD branch
—
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)
Others
Publication year
2007
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of Physics and Chemistry of Solids
ISSN
0022-3697
e-ISSN
—
Volume of the periodical
68
Issue of the periodical within the volume
5-6
Country of publishing house
GB - UNITED KINGDOM
Number of pages
5
Pages from-to
775-779
UT code for WoS article
—
EID of the result in the Scopus database
—