Abstract: The morphology, dispersion and localization of coke in coked alumina and silica have been investigated by a newly developed technique, which can be applied generally for studies of other systems of ‘support+modifier’ type. It is shown that, at the considered amounts of coke, deposited coke clusters partially cover the surface of silica leading to a mosaic-like structure of the resulting carbon–mineral material surface. These clusters are predominantly located in the pores of silica gel. Probably the pores filled with coke are formed by the tetrahedron packed SiO2 globules. On the other hand, the intensity of coke formation on the alumina surface is considerably higher then on the silica surface, so coke formation is accompanied by the total surface coverage at low amounts of coke deposited. Possible reasons for these differences are considered.

Cite: Melʹgunov M.S. , Fenelonov V.B. , Leboda R. , Charmas B.
Coke Dispersion in Carbon–Mineral Porous Adsorbents
Carbon. 2001. V.39. N3. P.357-367. DOI: 10.1016/S0008-6223(00)00129-9 WOS Scopus РИНЦ ANCAN OpenAlex

Dates:

Submitted:	May 26, 1999
Accepted:	Apr 20, 2000
Published online:	Feb 16, 2001
Published print:	Mar 1, 2001

Identifiers:

Web of science:	WOS:000166920500004
Scopus:	2-s2.0-0035121407
Elibrary:	13387781
Chemical Abstracts:	2001:92129
Chemical Abstracts (print):	134:165227
OpenAlex:	W1992981908

Citing:

DB	Citing
Web of science	12
Scopus	15
Elibrary	17
OpenAlex	12

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