Effect of the surface charge on the complexing and catalytic properties of Cu2+-containing composite materials based on zirconia and powdered cellulose / Kovaleva E. G.,Molochnikov L. S.,Parshina E. V.,Shishmakov A. B.,Mikushina Yu V.,Kirilyuk I. A.,Grigor'ev I. A. // RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY B. - 2014. - V. 8, l. 3. - P. 317-325.

ISSN/EISSN:

1990-7931 / 1990-7923

Type:

Article

Abstract:

Composite materials (CMs) based on zirconia xerogels and powdered cellulose (PC) were synthesized. The effect of the CM surface charge on their complexing properties with respect to Cu2+ ions and on the catalytic activity of the samples in model reactions of the decomposition of H2O2 and the oxidative dehydrogenation of trimethylhydroquinone with atmospheric oxygen was analyzed. It was experimentally proved that the use of PC for the synthesis of ZrO2-based CMs, as in the case of previously studied CMs based on SiO2 and TiO2, leads to an increase in the specific surface area S (sp) and a decrease in the negative electric potential of their surface. The surface charge, sorption method, and the composition of the buffer solution used for sorption have a significant effect on the copper(II) content in the CM phase, the distribution pattern, and the composition of the sorbed copper(II) compounds and on the catalytic activity of the synthesized Cu2+-containing CMs.

Author keywords:

composite materials; zirconia; powdered cellulose; trimethylhydroquinone; EPR spectroscopy; pH-sensitive nitroxide radicals SPIN PROBES; DIOXIDE; PH; 2,3,5-TRIMETHYL-1,4-HYDROQUINONE; OXIDATION; HYDROGEL; TITANIA; ACIDITY; IONS

DOI:

10.1134/S199079311403021X

Web of Science ID:

ISI:000339338400008

Соавторы в МНС:

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Другие поля

Поле	Значение
Month	MAY
Publisher	MAIK NAUKA/INTERPERIODICA/SPRINGER
Address	233 SPRING ST, NEW YORK, NY 10013-1578 USA
Language	English
EISSN	1990-7923
Keywords-Plus	SPIN PROBES; DIOXIDE; PH; 2,3,5-TRIMETHYL-1,4-HYDROQUINONE; OXIDATION; HYDROGEL; TITANIA; ACIDITY; IONS
Research-Areas	Physics
Web-of-Science-Categories	Physics, Atomic, Molecular \& Chemical
Author-Email	gek1969@bk.ru
ResearcherID-Numbers	Kovaleva, Elena/M-7400-2016 Kirilyuk, Igor/R-1688-2016
ORCID-Numbers	Kovaleva, Elena/0000-0002-3111-345X Kirilyuk, Igor/0000-0001-6033-0368
Funding-Acknowledgement	Russian Foundation for Basic Research {[}14-03-00898]; Program 211 of the Government of the Russian Federation {[}02.03.21.0006]
Funding-Text	This work was supported by the Russian Foundation for Basic Research, (project no. 14-03-00898) and Program 211 of the Government of the Russian Federation (grant no. 02.03.21.0006).
Number-of-Cited-References	30
Usage-Count-Last-180-days	1
Usage-Count-Since-2013	16
Journal-ISO	Russ. J. Phys. Chem. B
Doc-Delivery-Number	AL7TL