Abstract: Carbon xerogels containing various metals are in demand for multiple applications, including electrocatalysis and energy storage systems. Nickel-containing organic xerogels were prepared via a one-pot approach based on sol-gel technology with the addition of citric acid and ethylene glycol during the polycondensation stage. The samples were characterized by several methods, including low-temperature nitrogen adsorption, X-ray diffraction analysis, Raman spectroscopy, and transmission electron microscopy. The pyrolysis of organic xerogels was studied by temperature-programmed carbonization. As found, the pyrolysis procedure performed at temperatures of 800 °C and above resulted in the appearance of partially graphitized carbon xerogels. Partial graphitization of nickel-doped carbon xerogels at Ni content of 2.5 % and such a low temperature as 800 °C is reported for the first time. The specific surface area of the prepared materials exceeded 560 m2/g. Nickel species of 10–100 nm in size were found to be evenly distributed within the carbon matrix.

Cite: Veselov G.B. , Shubin Y.V. , Vedyagin A.A.
Low-Temperature Graphitization of Nickel-Containing Carbon Xerogels Facilitated by the Presence of Citric Acid and Ethylene Glycol in the Resorcinol-Formaldehyde Precursor
Journal of Non-Crystalline Solids. 2025. V.657. 123487 :1-8. DOI: 10.1016/j.jnoncrysol.2025.123487 WOS Scopus AN

Dates:

Submitted:	Dec 18, 2024
Accepted:	Mar 3, 2025
Published online:	Mar 5, 2025
Published print:	Jun 1, 2025

Identifiers:

Web of science:	WOS:001443390100001
Scopus:	2-s2.0-85219665859
Chemical Abstracts:	2025:579006

Citing: Пока нет цитирований

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