Abstract: We have studied the growth of catalytic filamentary carbon granules formed on methane decomposition over Ni catalysts. As a result, a hundred-fold increase in the particle volume can be obtained. It was established that as Ni concentration in the initial catalyst increases, the solidity of catalytic filamentary carbon (CFC) aggregates, formed on methane decomposition, increases. In the course of CFC formation on the finely-disperse catalyst of high nickel content, the inner structure of the growing granule transforms from the dense agglomerate of nickel particles into a dense carbon filament packing with rather large single internal cavities (cracks). On the granule surface there is a layer whose filament packing remains loose. We propose the physical model of granule formation.

Cite: Kuvshinov G.G. , Mogilnykh Y.I. , Kuvshinov D.G. , Yermakov D.Y. , Yermakova M.A. , Salanov A.N. , Rudina N.A.
Mechanism of Porous Filamentous Carbon Granule Formation on Catalytic Hydrocarbon Decomposition
Carbon. 1999. V.37. N8. P.1239-1246. DOI: 10.1016/S0008-6223(98)00320-0 WOS Scopus РИНЦ ANCAN OpenAlex

Dates:

Submitted:	Jul 29, 1998
Accepted:	Dec 3, 1998
Published print:	Jan 1, 1999
Published online:	Jun 7, 1999

Identifiers:

Web of science:	WOS:000081116500008
Scopus:	2-s2.0-0032678741
Elibrary:	13330760
Chemical Abstracts:	1999:429049
Chemical Abstracts (print):	131:118014
OpenAlex:	W1977342209

Citing:

DB	Citing
Web of science	56
Scopus	73
Elibrary	100
OpenAlex	73

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