Application of Functionalized Carbon Nanofibers as a Modifying Additive to Motor Oil | Sciact - CRIS-system of Boreskov Institute of Catalysis

Application of Functionalized Carbon Nanofibers as a Modifying Additive to Motor Oil Full article

Journal

Diamond and Related Materials
ISSN: 0925-9635 , E-ISSN: 1879-0062

Output data

Year: 2024, Volume: 146, Article number : 111207, Pages count : 12 DOI: 10.1016/j.diamond.2024.111207

Tags

Carbon nanofibers; Catalytic pyrolysis; Acidic treatment; Oxygen-containing functional groups; Tribological characteristics

Authors

Afonnikova Sofya D. ¹ , Veselov Grigory B. ¹ , Larionov Kirill B. ² , Kibis Lidiya S. ¹ , Selyutin Gennady E. ³ , Mishakov Ilya V. ¹ , Vedyagin Aleksey A. ¹ , Shubin Yury V. ⁴

Affiliations

1	Boreskov Institute of Catalysis SB RAS, 5 Lavrentiev Ave., Novosibirsk 630090, Russia
2	Laboratory of Advanced Materials for Energy Industry, Tomsk Polytechnic University, Tomsk 634050, Russia
3	Institute of Chemistry and Chemical Technology SB RAS, 50 Akademgorodok St., Krasnoyarsk 660036, Russia
4	Nikolaev Institute of Inorganic Chemistry SB RAS, 3 Lavrentiev Ave., Novosibirsk 630090, Russia

Funding (2)

1	The Ministry of Education and Science of the Russian Federation	FWUZ-2021-0002 (121031700315-2)
2	Ministry of Science and Higher Education of the Russian Federation	FWUR-2024-0034

Due to the widespread of lubricants, improving their tribological characteristics remains an important practical task. Among the promising modifying additives, carbon nanomaterials attract special attention. Such materials are found to improve the antifriction characteristics of lubricants and oils. In the present research, carbon nanofibers were synthesized via catalytic pyrolysis of a mixture of light hydrocarbons (C2-C4) over the Nisingle bondCu catalyst. In order to form functional groups on the surface of carbon nanofibers, they were treated with diluted acids HCl, HNO3, and H2SO4 as well as with concentrated HNO3. The functionalized samples were comprehensively characterized by a set of physicochemical methods including atomic absorption spectroscopy, scanning and transmission electron microscopies, low-temperature nitrogen adsorption, X-ray photoelectron spectroscopy, temperature-programmed desorption/oxidation, and Raman spectroscopy. As defined, the surface oxygen concentration in the samples varies from 3.5 to 16.3 at.%. It was shown that the addition of modified carbon nanofibers to a motor oil leads to an improvement in its tribological characteristics. In particular, the most effective additive was the sample treated with diluted HNO3. The motor oil with this modifying additive exhibited the heating temperature decreased by 10 °C and the contact spot area on the stationary body decreased by 20 %.

Afonnikova S.D. , Veselov G.B. , Larionov K.B. , Kibis L.S. , Selyutin G.E. , Mishakov I.V. , Vedyagin A.A. , Shubin Y.V.
Application of Functionalized Carbon Nanofibers as a Modifying Additive to Motor Oil
Diamond and Related Materials. 2024. V.146. 111207 :1-12. DOI: 10.1016/j.diamond.2024.111207 WOS Scopus РИНЦ AN OpenAlex

Submitted:	Dec 5, 2023
Accepted:	May 15, 2024
Published online:	May 17, 2024
Published print:	Jun 3, 2024

Web of science:	WOS:001293352600001
Scopus:	2-s2.0-85193532346
Elibrary:	67922802
Chemical Abstracts:	2024:1138916
OpenAlex:	W4397009301

DB	Citing
OpenAlex	2
Scopus	2
Elibrary	1
Web of science	2