The Use of Diatomite as a Catalyst Carrier for the Synthesis of Carbon Nanotubes
Nazhipkyzy M. Nemkayeva R.R. Nurgain A. Seitkazinova A.R. Dinistanova B.K. Issanbekova A.T. Zhylybayeva N. Bergeneva N.S. Mamatova G.U.
June-1 2022MDPI
Nanomaterials
2022#12Issue 11
In this article, multiwalled carbon nanotubes (MWCNTs) have been synthesized on the surface of a diatomite mineral impregnated with transition metal salts using a propane-butane mixture in a chemical vapor deposition reactor at atmospheric pressure. The catalyst concentration and synthesis temperature have been varied in order to understand their effects on the formation of MWCNTs and their morphology. Diatomite was chosen as a catalyst carrier due to its elemental composition. It is mainly composed of amorphous silica, quartz and also contains such metals as Fe, K, Ca, Mn, Cr, Ti, and Zn, which makes it a promising material for use as a catalyst carrier when synthesizing carbon nanotubes (CNTs) by catalytic chemical vapor deposition (C-CVD). For the synthesis of carbon nanotubes by C-CVD on the surface of the diatomite, the following salts were used as a catalyst: CoCl2·6H2 O; Ni(NO3)2·6H2 O, and the concentrations of the solutions were 0.5; 1.0 and 1.5 M. Natural diatomite was characterized by X-ray diffraction analysis (XRD) and Scanning Electron Microscopy (SEM) analysis.
carbon nanotubes , catalyst , chemical vapor deposition , diatomite , propane-butane gas mixture
Text of the article Перейти на текст статьи
Department of Chemical Physics and Material Science, Al-Farabi Kazakh National University, Almaty, 050040, Kazakhstan
Institute of Combustion Problems, Almaty, 050012, Kazakhstan
National Nanotechnology Laboratory of Open Type, Al-Farabi Kazakh National University, Almaty, 050040, Kazakhstan
Department of Geography and Environmental Sciences, Al-Farabi Kazakh National University, Almaty, 050040, Kazakhstan
Department of Chemical Physics and Material Science
Institute of Combustion Problems
National Nanotechnology Laboratory of Open Type
Department of Geography and Environmental Sciences
10 лет помогаем публиковать статьи Международный издатель
Книга Публикация научной статьи Волощук 2026 Book Publication of a scientific article 2026