Porous carbon–carbon composite materials obtained by alkaline dehydrochlorination of polyvinyl chloride

Porous carbon–carbon composite materials obtained by alkaline dehydrochlorination of polyvinyl chloride Full article

Journal

Materials
ISSN: 1996-1944

Output data

Year: 2022, Number: 15, Article number : 7636, Pages count : 15 DOI: 10.3390/ma15217636

Tags

polyvinyl chloride dehydrochlorination; carbon nanocomposites; nanoglobular carbon; graphite oxide

Authors

Kryazhev Yury G. ¹ , Anikeeva Irina V. ¹ , Trenikhin Mikhail V. ^1,2 , Gulyaeva Tatiana I. ¹ , Melnikov Valeriy P. ³ , Likholobov Vladimir A. ⁴ , Belskaya Olga B. ^1,2

Affiliations

1	Center of New Chemical Technologies BIC, Boreskov Institute of Catalysis, Siberian Branch, Russian Academy of Sciences
2	Petrochemical Institute, Department Chemistry and Chemical Technology, Omsk State Technical University
3	N.N. Semenov Federal Research Center for Chemical Physics, Russian Academy of Sciences
4	Boreskov Institute of Catalysis, Siberian Branch, Russian Academy of Sciences

Funding (1)

Ministry of Science and Higher Education of the Russian Federation

0239-2021-0004

Porous carbon–carbon composite materials (PCCCM) were synthesized by the alkaline dehydrochlorination of polyvinyl chloride solutions in dimethyl sulfoxide containing the modifying additives of a nanostructured component (NC): graphite oxide (GO), reduced graphite oxide (RGO) or nanoglobular carbon (NGC), with subsequent two-step thermal treatment of the obtained polyvinylene–NC composites (carbonization at 400 ◦C and carbon dioxide activation at 900 ◦C). The focus of the study was on the analysis and digital processing of transmission electron microscopy images to study local areas of carbon composite materials, as well as to determine the distances between graphene layers. TEM and low-temperature nitrogen adsorption studies revealed that the structure of the synthesized PCCCM can be considered as a porous carbon matrix in which either carbon nanoglobules (in the case of NGC) or carbon particles with the “crumpled sheet” morphology (in the case of GO or RGO used as the modifying additives) are distributed. Depending on the features of the introduced 5–7 wt.% nanostructured component, the fraction of mesopores was shown to vary from 11% to 46%, and SBET—from 791 to 1115 m2 g−1. The synthesis of PCCNC using graphite oxide and reduced graphite oxide as the modifying additives can be considered as a method for synthesizing a porous carbon material with the hierarchical structure containing both the micro- and meso/macropores. Such materials are widely applied and can serve as adsorbents, catalyst supports, elements of power storage systems, etc.

Kryazhev Y.G. , Anikeeva I.V. , Trenikhin M.V. , Gulyaeva T.I. , Melnikov V.P. , Likholobov V.A. , Belskaya O.B.
Porous carbon–carbon composite materials obtained by alkaline dehydrochlorination of polyvinyl chloride
Materials. 2022. N15. 7636 :1-15. DOI: 10.3390/ma15217636 WOS Scopus РИНЦ OpenAlex

Submitted:	Sep 21, 2022
Accepted:	Oct 25, 2022
Published print:	Oct 30, 2022

Web of science:	WOS:000882132600001
Scopus:	2-s2.0-85141849839
Elibrary:	50394845
OpenAlex:	W4307945564

DB	Citing
Web of science	1
OpenAlex	2
Scopus	2