Extended characterization methods for covalent functionalization of graphene on copper

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F17%3A00474209" target="_blank" >RIV/61388955:_____/17:00474209 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61388963:_____/17:00474209

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.carbon.2017.03.020" target="_blank" >http://dx.doi.org/10.1016/j.carbon.2017.03.020</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.carbon.2017.03.020" target="_blank" >10.1016/j.carbon.2017.03.020</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Extended characterization methods for covalent functionalization of graphene on copper

Popis výsledku v původním jazyce

Graphene is a material of great potential in a broad range of applications, for each of which specific tuning of the material's properties is required. This can be achieved, for example, by covalent functionalization. We have exploited two protocols for surface grafting, either by diazonium salts or by nucleophilic exchange, to perform graphene covalent modification directly on a copper substrate, which is routinely used for the synthesis of the material, and investigated the difference in reactivity compared with other substrates. The successful functionalization was confirmed by Raman and surface-enhanced Raman spectroscopy, mass spectrometry, X-ray photoelectron spectroscopy and scanning electron microscopy with energy-dispersive X-ray spectroscopy. In addition, we have found that the copper substrate can serve as a plasmonic surface enhancing the Raman spectra. Furthermore, the covalent grafting was shown to tolerate the transfer process, thus allowing ex post transfer from copper to other substrates. This protocol avoids wet processing and enables an all-gas-phase transformation of functionalized graphene, which eliminates the main sources of contamination.

Název v anglickém jazyce

Extended characterization methods for covalent functionalization of graphene on copper

Popis výsledku anglicky

Graphene is a material of great potential in a broad range of applications, for each of which specific tuning of the material's properties is required. This can be achieved, for example, by covalent functionalization. We have exploited two protocols for surface grafting, either by diazonium salts or by nucleophilic exchange, to perform graphene covalent modification directly on a copper substrate, which is routinely used for the synthesis of the material, and investigated the difference in reactivity compared with other substrates. The successful functionalization was confirmed by Raman and surface-enhanced Raman spectroscopy, mass spectrometry, X-ray photoelectron spectroscopy and scanning electron microscopy with energy-dispersive X-ray spectroscopy. In addition, we have found that the copper substrate can serve as a plasmonic surface enhancing the Raman spectra. Furthermore, the covalent grafting was shown to tolerate the transfer process, thus allowing ex post transfer from copper to other substrates. This protocol avoids wet processing and enables an all-gas-phase transformation of functionalized graphene, which eliminates the main sources of contamination.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10403 - Physical chemistry

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název periodika

Carbon

ISSN

0008-6223

e-ISSN

—

Svazek periodika

118

Číslo periodika v rámci svazku

JUL 2017

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

8

Strana od-do

200-207

Kód UT WoS článku

000401120800023

EID výsledku v databázi Scopus

2-s2.0-85015640425