Please use this identifier to cite or link to this item:
http://hdl.handle.net/1843/78178| Type: | Artigo de Periódico |
| Title: | One-pot synthesis of amine-functionalized graphene oxide by microwave-assisted reactions: an outstanding alternative for supporting materials in supercapacitors |
| Authors: | Cristiano Carrareto Caliman Anderson Fuzer Mesquita Daniel Fernandes Cipriano Jair Carlos Checon de Freitas Alexandre Alberto Chaves Cotta Waldemar Augusto de Almeida Macedo Arilza de Oliveira Porto |
| Abstract: | A simple and straightforward method using microwave-assisted reactions is presented for the functionalization of graphene oxide with aromatic and non-aromatic amines, notedly dibenzylamine (DBA), p-phenylenediamine (PPD), diisopropylamine (DPA) and piperidine (PA). The as-synthesized amine-functionalized graphene oxide materials (amine-GO) were characterized using spectroscopic techniques including XRD, FTIR, 13C NMR, XPS, TEM for imaging and thermogravimetric analysis (TGA). The characterization confirmed the functionalization for all amines, reaching relatively high surface nitrogen atomic concentrations of up to 8.8%. The investigations of electrochemical behavior for the amine-GOs show the significant improvement in GO's electrochemical properties through amine functionalization, exhibiting long life cycle stability and reaching specific capacitance values of up to 290 F g−1 and 260 F g−1 for GO-PA and GO-DPA samples, respectively, confirming their potential application as alternative supporting materials in supercapacitors. |
| Subject: | Química Aminas Grafeno Capacitadores Termogravimetria Análise eletroquímica Análise espectral |
| language: | eng |
| metadata.dc.publisher.country: | Brasil |
| Publisher: | Universidade Federal de Minas Gerais |
| Publisher Initials: | UFMG |
| metadata.dc.publisher.department: | ICX - DEPARTAMENTO DE QUÍMICA |
| Rights: | Acesso Aberto |
| metadata.dc.identifier.doi: | https://doi.org/10.1039/C7RA13514A |
| URI: | http://hdl.handle.net/1843/78178 |
| Issue Date: | 2018 |
| metadata.dc.url.externa: | https://pubs.rsc.org/en/content/articlelanding/2018/ra/c7ra13514a |
| metadata.dc.relation.ispartof: | RSC Advances |
| Appears in Collections: | Artigo de Periódico |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| One-pot synthesis of amine-functionalized(1).pdf | 1.78 MB | Adobe PDF | View/Open |
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