Počet záznamů: 1
p-Doping of Graphene in Hybrid Materials with 3,10-Diazapicenium Dications.
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SYSNO ASEP 0474737 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název p-Doping of Graphene in Hybrid Materials with 3,10-Diazapicenium Dications. Tvůrce(i) Roth, A. (DE)
Schaub, T.A. (DE)
Meinhardt, U. (DE)
Thiel, D. (DE)
Storch, Jan (UCHP-M) RID, ORCID, SAI
Církva, Vladimír (UCHP-M) RID, ORCID, SAI
Jakubík, Pavel (UCHP-M) SAI
Guldi, D.M. (DE)
Kivala, M. (DE)Zdroj.dok. Chemical Science . - : Royal Society of Chemistry - ISSN 2041-6520
Roč. 8, č. 5 (2017), s. 3494-3499Poč.str. 6 s. Jazyk dok. eng - angličtina Země vyd. GB - Velká Británie Klíč. slova diazapicene ; graphene ; molecules Vědní obor RIV CC - Organická chemie Obor OECD Organic chemistry CEP GA17-02578S GA ČR - Grantová agentura ČR Institucionální podpora UCHP-M - RVO:67985858 UT WOS 000400553000023 EID SCOPUS 85021626109 DOI 10.1039/c7sc00533d Anotace N,N'-Didodecyl-substituted 3,10-diazapicenium salts featuring bromide and hexafluorophosphate counterions have been designed as novel dopants to realize individualized graphene sheets in a series of cutting edge experiments and to intrinsically stabilize them via p-doping. Importantly, electrochemical studies revealed two consecutive irreversible one-electron reductions of the N,N'-didodecyl-substituted 3,10-diazapicenium salts to yield the corresponding radical cation and neutral quinoidal species. Formation of both species was accompanied by characteristic changes in the absorption spectra. The 3,10-diazapicenium bromide was found to be a potent dopant to produce hybrid materials with exfoliated graphene. Microscopy based on AFM and TEM imaging and spectroscopy based on Raman probing corroborated that, upon drying, the hybrid material consists of few layer (5-8 layers) turbostratic graphene sheets that are p-doped. Our findings identify the newly synthesized N,N'-dialkylated 3,10-diazapicenium salts as highly promising candidates for the fabrication of functional graphene materials with tailored properties. Pracoviště Ústav chemických procesů Kontakt Eva Jirsová, jirsova@icpf.cas.cz, Tel.: 220 390 227 Rok sběru 2018
Počet záznamů: 1