High conductive rGO sheets fabricated by mild, low-cost and scalable plasma-triggered reduction-exfoliation of 3D aerogel-like graphene oxide

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F22%3A00126305" target="_blank" >RIV/00216224:14310/22:00126305 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S2452262722000708?via%3Dihub#" target="_blank" >https://www.sciencedirect.com/science/article/pii/S2452262722000708?via%3Dihub#</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.flatc.2022.100403" target="_blank" >10.1016/j.flatc.2022.100403</a>

Jazyk výsledku

angličtina

Název v původním jazyce

High conductive rGO sheets fabricated by mild, low-cost and scalable plasma-triggered reduction-exfoliation of 3D aerogel-like graphene oxide

Popis výsledku v původním jazyce

The costs associated with the reduced graphene oxide (rGO) reduction process still limit its large-scale production from starting graphene oxide (GO) precursors. As a solution to these problems, we demonstrate a low-cost, chemical-free, fast (∼1 s), and low-temperature (∼140 °C) fabrication of 3D free-standing pure rGO aerogel structure using an electrical plasma-triggered reduction of a casted GO aerogel without destroying of its original 3D physical form. The reduction-exfoliation realized using a Diffuse Coplanar Surface Dielectric Barrier Discharge (DCSBD) plasma source in atmospheric-pressure N2 results in an approximately 105 fold decrease in the GO aerogel resistivity and more than two orders increase of its specific surface area. The basic properties of the rGO thus produced were examined using XPS and SEM and compared with those obtained using a standard thermal reduction method. We believe that the method presented opens new opportunities for low-cost industrial-scale production of porous 3D and 2D rGO structures including their composites and hybrids with temperature-sensitive materials.

Název v anglickém jazyce

High conductive rGO sheets fabricated by mild, low-cost and scalable plasma-triggered reduction-exfoliation of 3D aerogel-like graphene oxide

Popis výsledku anglicky

The costs associated with the reduced graphene oxide (rGO) reduction process still limit its large-scale production from starting graphene oxide (GO) precursors. As a solution to these problems, we demonstrate a low-cost, chemical-free, fast (∼1 s), and low-temperature (∼140 °C) fabrication of 3D free-standing pure rGO aerogel structure using an electrical plasma-triggered reduction of a casted GO aerogel without destroying of its original 3D physical form. The reduction-exfoliation realized using a Diffuse Coplanar Surface Dielectric Barrier Discharge (DCSBD) plasma source in atmospheric-pressure N2 results in an approximately 105 fold decrease in the GO aerogel resistivity and more than two orders increase of its specific surface area. The basic properties of the rGO thus produced were examined using XPS and SEM and compared with those obtained using a standard thermal reduction method. We believe that the method presented opens new opportunities for low-cost industrial-scale production of porous 3D and 2D rGO structures including their composites and hybrids with temperature-sensitive materials.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10305 - Fluids and plasma physics (including surface physics)

Projekt

<a href="/cs/project/LM2018097" target="_blank" >LM2018097: Centrum výzkumu a vývoje plazmatu a nanotechnologických povrchových úprav</a><br>

Návaznosti

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

Rok uplatnění

2022

Kód důvěrnosti údajů

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

Název periodika

FlatChem

ISSN

2452-2627

e-ISSN

2452-2627

Svazek periodika

35

Číslo periodika v rámci svazku

September

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

6

Strana od-do

1-6

Kód UT WoS článku

000865474200001

EID výsledku v databázi Scopus

2-s2.0-85134626064