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Gold Particle Size Effect in Biomass-Derived Lignan Hydroxymatairesinol Oxidation over Au/Al2O3 Catalysts Научная публикация

Журнал Applied Catalysis A: General
ISSN: 0926-860X
Вых. Данные Год: 2015, Том: 504, Страницы: 248-255 Страниц : 8 DOI: 10.1016/j.apcata.2014.12.051
Авторы Lopez Martín 1 , Simakova Olga A. 2 , Murzina Elena V. 2 , Willfor Stefan M. 3 , Prosvirin Igor 4 , Simakov Andrey 5 , Murzin Dmitry Yu. 2
Организации
1 Posgrado de Ciencia e Ingeniería de Materiales de la UNAM, Centro de Nanociencias y Nanotecnología, C.P. 22860, Ensenada, Baja California, Mexico
2 Laboratory of Industrial Chemistry and Reaction Engineering, Process Chemistry Centre, Åbo Akademi University, FI-20500 Åbo/Turku, Finland
3 Laboratory of Wood and Paper Chemistry, Process Chemistry Centre, Åbo Akademi University, FI-20500 Åbo/Turku, Finland
4 Boreskov Institute of Catalysis, Lavrentieva 5, Novosibirsk 630090, Russia
5 Universidad Nacional Autónoma de México, Centro de Nanociencias y Nanotecnología, km. 107 Carretera Tijuana-Ensenada, C.P. 22860, Ensenada, Baja California, Mexico
Реферат: The heterogeneously catalyzed aerobic selective oxidation of naturally occurring lignan hydroxy-matairesinol (HMR) to another lignan oxomatairesinol (oxoMAT) was carried out at 70◦C and atmosphericpressure over gold nanoparticles with different sizes supported on alumina prepared from organo-metallic precursor by the sol–gel method. Precursor of gold nanoparticles (i.e. gold hydroxide) wassupported on alumina by deposition–precipitation with urea from HAuCl4aqueous solution followed bywashing with ammonium hydroxide. The size of the supported gold nanoparticles was changed by eithertreatment under hydrogen flow at different temperatures or exposure to ultraviolet (UV) irradiation at thewavelength of 254 nm. The catalysts were characterized by inductively coupled plasma atomic emissionspectroscopy (ICP-AES), nitrogen adsorption, X-ray diffraction (XRD), transmission electron microscopy(TEM), X-ray photoelectron spectra (XPS), and UV–visible spectroscopy (UV–vis). Structure sensitivity inHMR oxidation was studied showing that the reaction rate passes through a maximum when the goldcluster size is ca. 4 nm.
Библиографическая ссылка: Lopez M. , Simakova O.A. , Murzina E.V. , Willfor S.M. , Prosvirin I. , Simakov A. , Murzin D.Y.
Gold Particle Size Effect in Biomass-Derived Lignan Hydroxymatairesinol Oxidation over Au/Al2O3 Catalysts
Applied Catalysis A: General. 2015. V.504. P.248-255. DOI: 10.1016/j.apcata.2014.12.051 WOS Scopus РИНЦ CAPlusCA OpenAlex Sciact
Даты:
Поступила в редакцию: 15 сент. 2014 г.
Принята к публикации: 29 дек. 2014 г.
Опубликована online: 6 янв. 2015 г.
Опубликована в печати: 1 сент. 2015 г.
Идентификаторы БД:
Web of science: WOS:000362604200029
Scopus: 2-s2.0-84942373422
РИНЦ: 24952511
Chemical Abstracts: 2015:56180
Chemical Abstracts (print): 163:397176
OpenAlex: W1974585324
Sciact: 8146
Цитирование в БД:
БД Цитирований
Scopus 8
OpenAlex 8
Альметрики: