Graphene with Covalently Grafted Amino Acid as a Route Toward Eco-Friendly and Sustainable Supercapacitors

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27640%2F21%3A10247747" target="_blank" >RIV/61989100:27640/21:10247747 - isvavai.cz</a>
Alternative codes found
RIV/61989100:27740/21:10247747 RIV/61989592:15640/21:73608076 RIV/61989592:15310/21:73608076
Result on the web
<a href="https://chemistry-europe.onlinelibrary.wiley.com/doi/epdf/10.1002/cssc.202101039" target="_blank" >https://chemistry-europe.onlinelibrary.wiley.com/doi/epdf/10.1002/cssc.202101039</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1002/cssc.202101039" target="_blank" >10.1002/cssc.202101039</a>

Result language
angličtina
Original language name
Graphene with Covalently Grafted Amino Acid as a Route Toward Eco-Friendly and Sustainable Supercapacitors
Original language description
Eco-friendly, electrochemically active electrode materials based on covalent graphene derivatives offer enormous potential for energy storage applications. However, covalent grafting of functional groups onto the graphene surface is challenging due to its low reactivity. Here, fluorographene chemistry was employed to graft an arginine moiety via its guanidine group homogeneously on both sides of graphene. By tuning the reaction conditions and adding a non-toxic pore-forming agent, an optimum degree of functionalization and hierarchical porosity was achieved in the material. This tripled the specific surface area and yielded a high capacitance value of approximately 390 F gMINUS SIGN 1 at a current density of 0.25 A gMINUS SIGN 1. The applicability of the electrode material was investigated under typical operating conditions by testing an assembled supercapacitor device for up to 30000 charging/discharging cycles, revealing capacitance retention of 82.3 %. This work enables the preparation of graphene derivatives with covalently grafted amino acids for technologically important applications, such as supercapacitor-based energy storage. (C) 2021 The Authors. ChemSusChem published by Wiley-VCH GmbH
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
10400 - Chemical sciences

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
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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