Quantitative determination of acidic groups in functionalized graphene by direct titration

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388980%3A_____%2F16%3A00459061" target="_blank" >RIV/61388980:_____/16:00459061 - isvavai.cz</a>
Alternative codes found
RIV/61389013:_____/16:00459061 RIV/44555601:13520/16:43887669 RIV/62690094:18470/16:50004726
Result on the web
<a href="http://dx.doi.org/10.1016/j.reactfunctpolym.2016.03.021" target="_blank" >http://dx.doi.org/10.1016/j.reactfunctpolym.2016.03.021</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.reactfunctpolym.2016.03.021" target="_blank" >10.1016/j.reactfunctpolym.2016.03.021</a>

Result language
angličtina
Original language name
Quantitative determination of acidic groups in functionalized graphene by direct titration
Original language description
Direct titration with NaOH was used to quantify the acidic functional group content in graphene oxide (GO). Three different methods were used to evaluate the experimental data: the first derivation of the titration curve, Gran linearization and an empirical approach suggested by Ritchie and Perdue for the evaluation of the titration data for humic substances. Two types of acidic functional groups were identified and classified, more or less arbitrarily, as being either carboxylic or phenolic. Typically, the carboxylic acid group contents ranged from ca. 0.80 to 1.70 mmol/g, except for the carboxylated GO prepared by the reaction with chloroacetic acid, which contained significantly more carboxylic acid groups. The titration results are consistent with those obtained by instrumental methods such as X-ray diffraction (XRD), infrared spectroscopy (IR), Raman spectroscopy and X-ray photoelectron spectroscopy (XPS). For modelling purposes (proton binding and metal binding), a bimodal continuous distribution model was proposed, and its parameters were estimated from the titration data.
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
CA - Inorganic chemistry
OECD FORD branch
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Project
<a href="/en/project/GA14-05146S" target="_blank" >GA14-05146S: Study of graphene – ionic liquid interactions for preparation of polymer composites</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2016
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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