Cyanographene and Graphene Acid: The Functional Group of Graphene Derivative Determines the Application in Electrochemical Sensing and Capacitors

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F19%3A73594908" target="_blank" >RIV/61989592:15310/19:73594908 - isvavai.cz</a>
Alternative codes found
RIV/60461373:22310/19:43918529
Result on the web
<a href="https://onlinelibrary.wiley.com/doi/full/10.1002/celc.201800675" target="_blank" >https://onlinelibrary.wiley.com/doi/full/10.1002/celc.201800675</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1002/celc.201800675" target="_blank" >10.1002/celc.201800675</a>

Result language
angličtina
Original language name
Cyanographene and Graphene Acid: The Functional Group of Graphene Derivative Determines the Application in Electrochemical Sensing and Capacitors
Original language description
Well-defined, stoichiometric derivatives of graphene afford many opportunities in fine-tuning of graphene properties and hence, extend the application potential of this material. Here, we present the electrochemical properties of cyanographene (G-CN), and graphene acid (G-COOH) in order to understand the role of the covalently attached functional groups on the graphene sheet in electrochemical sensing for the detection of biomarkers. G-CN shows better performance for the negatively charged analytes ascorbic and uric acids when compared to G-COOH. The less-favourable performance of G-COOH is explained by repulsion between negatively charged analytes and negatively charged functional groups of G-COOH. The capacitance of both materials is in a comparable range, but chronopotentiometry reveals that G-CN shows a greater capacitance than G-COOH. The identified differences in electrochemical properties imprinted by the functional group show that its chemical nature can be exploited in fine-tuning of the selectivity of electrochemical sensing and energy storage applications.
Czech name
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Czech description
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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)

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)

Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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