The thermal stability of carbon materials in the air: Quantitative structural investigation of thermal stability of carbon materials in air

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F23%3A00568905" target="_blank" >RIV/61388955:_____/23:00568905 - isvavai.cz</a>

Alternative codes found

RIV/67985891:_____/23:00568905 RIV/00216275:25310/23:39920570

Result on the web

<a href="https://hdl.handle.net/11104/0340185" target="_blank" >https://hdl.handle.net/11104/0340185</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.carbon.2023.02.042" target="_blank" >10.1016/j.carbon.2023.02.042</a>

Result language

angličtina

Original language name

The thermal stability of carbon materials in the air: Quantitative structural investigation of thermal stability of carbon materials in air

Original language description

The variability of the nanostructure of carbon materials results in a uniquely wide range of physical and chemical properties. This work analyses how the nanostructure affects the thermal stability of 2D and 3D graphene-based materials (graphene, fullerenes, nanotubes, zeolite-templated carbon), disordered and 3D ordered mesoporous carbon materials (activated carbons, CMK-3, 3DOMM), and layered carbon materials (few-layer graphene, graphene nanoplatelets, graphite) in the air. Combination of structural, thermogravimetric and calorimetric analyses under identical conditions for all the carbon nanomaterials showed that the most decisive factor increasing the stability is the stacking of graphene layers with long-range order parallel to each other, increasing the onset oxidation temperature (Ton) with the number of graphene layers from 530 °C for graphene up to 800 °C for graphite. The unsaturated carbon atoms at the defects and edges and the bending stress in the 3D graphene layers cause that graphene, the 3D non-defective monolayer in fullerenes and the defective monolayer in zeolite-templated carbon exhibit similar stability to disordered amorphous materials, as well as 3D organised mesoporous materials. All these materials are oxidized in a narrow Ton interval from 485 to 530 °C. The most significant factor for reducing the stability is the presence of specific oxygen-containing functional groups, which decrease Ton for materials with oxidized edges and with predominant hydroxyl groups by up to 150 °C. The relationships between the carbon structure and its stability in the air facilitate targeting the nanostructure of carbon materials in relation to their stability.

Czech name

—

Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10403 - Physical chemistry

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2023

Confidentiality

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

Name of the periodical

Carbon

ISSN

0008-6223

e-ISSN

1873-3891

Volume of the periodical

206

Issue of the periodical within the volume

MAR 2023

Country of publishing house

US - UNITED STATES

Number of pages

15

Pages from-to

211-225

UT code for WoS article

000944530300001

EID of the result in the Scopus database

2-s2.0-85149057491