Carbon-in-Silica Matrices for the Preparation of Heterogeneous Biocatalysts: The Synthesis of Carbon Nanofibers on a Ni/SiO2 Catalyst and the Characterization of the Resulting Adsorbents for the Immobilization of Thermostable Lipase Full article
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Kinetics and Catalysis
ISSN: 0023-1584 , E-ISSN: 1608-3210 |
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| Output data | Year: 2013, Volume: 54, Number: 6, Pages: 749-760 Pages count : 12 DOI: 10.1134/S0023158413050078 | ||||
| Tags | Lipase; Aerosil; Carbon Nanofibers; Tributyrine; Silica Xerogel | ||||
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Abstract:
Comparative studies of nanocarbons and nanocarbon-in-silica adsorbents for the immobilization of enzymes, for example, thermostable lipase from Thermomyces lanuginosus, were performed. Carbon nanotubes (CNTs) with different diameters, specific surface areas, and concentrations of surface carboxy groups were studied as the nanocarbon adsorbents. The nanocarbon-in-silica adsorbents were prepared by the synthesis of carbon nanofibers (CNFs) in SiO2 xerogel in the course of the pyrolysis of C3-C4 alkanes on Ni catalysts; their physicochemical and textural characteristics were studied by thermal analysis, scanning electron microscopy, and nitrogen porosimetry. It was found that carbon nanofibers of different diameters were synthesized in the bulk of a silica matrix only at Ni contents higher than 1–1.5%. The CNFs-in-silica supports were nanoporous: the mean pore diameter and the specific surface area were ∼10 nm and 250–300 m2/g, respectively. The heterogeneous biocatalysts prepared by the adsorption of thermostable lipase on the CNTs and CNFs-in-silica supports were investigated in the reaction of triglyceride (tributyrine) hydrolysis; the physicochemical properties of biocatalysts and their enzymatic activity and stability were studied depending on the hydrophobicity-hydrophilicity of the support/matrix.
Cite:
Kovalenko G.A.
, Perminova L.V.
, Chuenko T.V.
, Rudina N.A.
, Moseenkov S.I.
, Kuznetsov V.L.
Carbon-in-Silica Matrices for the Preparation of Heterogeneous Biocatalysts: The Synthesis of Carbon Nanofibers on a Ni/SiO2 Catalyst and the Characterization of the Resulting Adsorbents for the Immobilization of Thermostable Lipase
Kinetics and Catalysis. 2013. V.54. N6. P.749-760. DOI: 10.1134/S0023158413050078 WOS Scopus РИНЦ ANCAN OpenAlex
Carbon-in-Silica Matrices for the Preparation of Heterogeneous Biocatalysts: The Synthesis of Carbon Nanofibers on a Ni/SiO2 Catalyst and the Characterization of the Resulting Adsorbents for the Immobilization of Thermostable Lipase
Kinetics and Catalysis. 2013. V.54. N6. P.749-760. DOI: 10.1134/S0023158413050078 WOS Scopus РИНЦ ANCAN OpenAlex
Original:
Коваленко Г.А.
, Перминова Л.В.
, Чуенко Т.В.
, Рудина Н.А.
, Мосеенков С.И.
, Кузнецов В.Л.
Углерод-силикатные матрицы для приготовления гетерогенных биокатализаторов. Синтез нановолокнистого углерода на катализаторе Ni/SiO2 и исследование полученных адсорбентов для иммобилизации термостабильной липазы
Кинетика и катализ. 2013. Т.54. №6. С.792-804. DOI: 10.7868/S0453881113050079 РИНЦ OpenAlex
Углерод-силикатные матрицы для приготовления гетерогенных биокатализаторов. Синтез нановолокнистого углерода на катализаторе Ni/SiO2 и исследование полученных адсорбентов для иммобилизации термостабильной липазы
Кинетика и катализ. 2013. Т.54. №6. С.792-804. DOI: 10.7868/S0453881113050079 РИНЦ OpenAlex
Dates:
| Submitted: | Dec 17, 2012 |
| Published print: | Nov 1, 2013 |
| Published online: | Nov 15, 2013 |
Identifiers:
| Web of science: | WOS:000327091100016 |
| Scopus: | 2-s2.0-84892148808 |
| Elibrary: | 21906747 |
| Chemical Abstracts: | 2013:1785860 |
| Chemical Abstracts (print): | 161:579280 |
| OpenAlex: | W1978897501 |