The main factors affecting the catalytic properties of Ru/Cs-HPA systems in one-pot hydrolysis-hydrogenation of cellulose to sorbitol : научное издание

Тип публикации: статья из журнала

Год издания: 2020

Идентификатор DOI: 10.1016/j.apcata.2020.117489

Ключевые слова: -hydrogenation, Cellulose, Sorbitol, Ruthenium, Cesium salt of heteropoly acid

Аннотация: One-pot conversion of mechanically activated cellulose to sorbitol was investigated over bifunctional catalysts based on Ru (0.6, 1 and 3 wt. 0 /0) and cesium salts of heteropoly acids (HPA) Cs2.1H0.9PW12O40 and Cs3HSiW12O40 (Cs-PW and Cs-SiW, respectively). The maximal yield of sorbitol equal to 59 % and selectivity 94 % were achieved over the 1%Ru/Cs3HSiW12O40 catalyst. Physicochemical and catalytic data showed that the rate-determining step, i.e. the hydrolysis of cellulose, depended on the surface acidity of catalysts, whereas Ru content in catalyst affected both the hydrolysis and the hydrogenation steps. The kinetic parameters for one-pot conversion of cellulose were determined by mathematical modeling approach and were successfully used for the prediction of the yields of sorbitol and mannitol.

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Издание

Журнал: APPLIED CATALYSIS A-GENERAL

Выпуск журнала: Vol.595

ISSN журнала: 0926860X

Место издания: AMSTERDAM

Персоны

Gromov Nikolay (Boreskov Inst Catalysis SB RAS, Lavrentiev Av 5, Novosibirsk 630090, Russia; Novosibirsk State Tech Univ, Karl Marx Av 20, Novosibirsk 630092, Russia)
Medvedeva Tatiana B. (Boreskov Inst Catalysis SB RAS, Lavrentiev Av 5, Novosibirsk 630090, Russia)
Taran Oxana P. (Boreskov Inst Catalysis SB RAS, Lavrentiev Av 5, Novosibirsk 630090, Russia; FRC Krasnoyarsk Sci Ctr SB RAS, Inst Chem & Chem Technol SB RAS, Akademgorodok 50-24, Krasnoyarsk 660036, Russia; Siberian Fed Univ, Svobodny Av 79, Krasnoyarsk 660041, Russia)
Timofeeva Maria N. (Boreskov Inst Catalysis SB RAS, Lavrentiev Av 5, Novosibirsk 630090, Russia; Novosibirsk State Tech Univ, Karl Marx Av 20, Novosibirsk 630092, Russia)
Said-Aizpuru Olivier (Ecole Normale Super Lyon, Allee Italie 46, F-69007 Lyon, France)
Panchenko Valentina N. (Boreskov Inst Catalysis SB RAS, Lavrentiev Av 5, Novosibirsk 630090, Russia; Novosibirsk State Tech Univ, Karl Marx Av 20, Novosibirsk 630092, Russia)
Gerasimov Evgeniy Yu (Boreskov Inst Catalysis SB RAS, Lavrentiev Av 5, Novosibirsk 630090, Russia)
Kozhevnikov Ivan (Univ Liverpool, Dept Chem, Liverpool L69 7ZD, Merseyside, England)
Parmon Valentin N. (Boreskov Inst Catalysis SB RAS, Lavrentiev Av 5, Novosibirsk 630090, Russia)

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