Perforated cenosphere-supported pH-sensitive spin probes

Perforated cenosphere-supported pH-sensitive spin probes Full article

Journal

Russian Chemical Bulletin
ISSN: 1066-5285 , E-ISSN: 1573-9171

Output data

Year: 2008, Volume: 57, Number: 3, Pages: 493-498 Pages count : DOI: 10.1007/s11172-008-0076-x

Tags

cenospheres; nitroxyl radicals; supported spin probes; pH measurement using ESR spectroscopy

Authors

Fomenko E. V. , Bobko A. A. , Salanov A. N. , Kirilyuk I. A. , Grigor'ev I. A. , Khramtsov V. V. , Anshits A. G.

Affiliations

1	(Данные Web of science) Russian Acad Sci, Siberian Branch, Inst Chem & Chem Technol, Krasnoyarsk 660049, Russia
2	(Данные Web of science) Russian Acad Sci, Inst Chem Kinet & Combust, Siberian Branch, Novosibirsk 630090, Russia
3	(Данные Web of science) Ohio State Univ, Dorothy M Davis Heart & Lung Res Inst, Columbus, OH 43210 USA
4	(Данные Web of science) Russian Acad Sci, Siberian Branch, GK Boreskov Inst Catalysis, Novosibirsk 630090, Russia
5	(Данные Web of science) Russian Acad Sci, Siberian Branch, NN Vorozhtsov Inst Organ Chem, Novosibirsk 630090, Russia

Porous supports with an accessible internal volume and a shell providing the diffusive migration of pH-sensitive spin probes were obtained for the first time from hollow aluminosilicate cenospheres isolated from the coal fly ash. Using the methods of scanning electron microscopy and electron spin resonance, the morphology of different porous cenosphere modifications and its influence on the diffusion of spin probes from the internal volume were studied. When supporting aqueous solutions of a radical, the characteristic diffusion time for the mesoporous structure of the support is longer by a factor of 3-5 than that for the macroporous structure. Ferrospinel in a content of 6 wt.% do not virtually affect the diffusion rate of spin probes. A constant rate of radical migration of similar to 1 mu mol min(-1), determined by radical solubility in water, is achieved when a radical in (lie solid aggregate state is Supported oil the magnetic cenospheres.

Fomenko E.V. , Bobko A.A. , Salanov A.N. , Kirilyuk I.A. , Grigor'ev I.A. , Khramtsov V.V. , Anshits A.G.
Perforated cenosphere-supported pH-sensitive spin probes
Russian Chemical Bulletin. 2008. V.57. N3. P.493-498. DOI: 10.1007/s11172-008-0076-x WOS Scopus РИНЦ

Фоменко Е.В. , Бобко А.А. , Саланов А.Н. , Кирилюк И.А. , Григорьев И.А. , Храмцов В.В. , Аншиц А.Г.
Нанесенные рн-чувствительные спиновые зонды на основе перфорированных ценосфер
Известия Академии наук. Серия химическая.(RUSS CHEM B+). 2008. №3. С.482-487. РИНЦ

Published print:	Mar 1, 2008
Published online:	Mar 7, 2009

Web of science	WOS:000263566900006
Scopus	2-s2.0-62249152424
Elibrary	13580328
OpenAlex	W2096990796