Highly Active and Durable Pd/Fe2O3 Catalysts For Wet CO Oxidation under Ambient Conditions | Sciact - CRIS-система Института катализа

Highly Active and Durable Pd/Fe2O3 Catalysts For Wet CO Oxidation under Ambient Conditions Научная публикация

Журнал

Catalysis Science and Technology
ISSN: 2044-4753 , E-ISSN: 2044-4761

Вых. Данные

Год: 2016, Том: 6, Номер: 11, Страницы: 3918-3928 Страниц : 11 DOI: 10.1039/C5CY01588J

Ключевые слова

Catalysts; Dimethylformamide; Nitrates; Organic solvents; Oxidation; Temperature; Water vapor

Авторы

Ivanova A.S. ^1,2 , Slavinskaya E.M. ^1,2 , Stonkus O.A. ^1,2,3 , Gulyaev R.V. ^1,2 , Glazneva T.S. ^1,2 , Noskov A.S. ¹ , Boronin A.I. ^1,2

Организации

1	Boreskov Institute of Catalysis SB RAS, Novosibirsk 630090, Russia
2	Novosibirsk State University, Novosibirsk, 630090, Russia
3	Research and Educational Center for Energy Efficient Catalysis, Novosibirsk State University, Novosibirsk, 630090, Russia

Информация о финансировании (2)

1	Министерство образования и науки Российской Федерации
2	Фонд «Сколково»	3 от 25.12.2014

Pd/Fe2O3(FeOOH) catalysts were prepared in different ways: T – traditional incipient wetness impregnation (IWI) from a solution of palladium nitrate, D – modification of the support surface by dimethylformamide (DMF) prior to IWI, and DF – variant D followed by treatment with a sodium formate solution. These catalysts have been tested for CO oxidation under isothermal conditions at 20 °C in the presence and absence of water vapor and characterized by XRD, TEM, XPS, H2-reduction and adsorption methods. The Pd(T)/Fe2O3 catalyst is highly active in CO oxidation at room temperature under “dry” conditions but is deactivated in the presence of water vapor. The Pd(D)/Fe2O3 catalyst is inactive in low-temperature CO oxidation, whereas Pd(DF)/Fe2O3(FeOOH) catalysts are characterized by high activity at room temperature and ambient humidity. The main state of palladium in the Pd(T)/Fe2O3 catalyst without pretreatment with DMF is in nitrate complexes, where it can be readily reduced to form clusters ∼1.5 nm in size. In the case of Pd(D)/Fe2O3, palladium interacts with dimethylformamide forming complexes which cannot be reduced by hydrogen at room temperature. It is proposed that palladium clusters are located within the interdomain boundaries of the hydrophobic support in (0.5–1.0)% Pd(DF)/Fe2O3 active catalysts. These (0.5–1.0)% Pd(DF)/Fe2O3 catalysts were active towards CO oxidation at ambient temperature and humidity for several hours.

Ivanova A.S. , Slavinskaya E.M. , Stonkus O.A. , Gulyaev R.V. , Glazneva T.S. , Noskov A.S. , Boronin A.I.
Highly Active and Durable Pd/Fe2O3 Catalysts For Wet CO Oxidation under Ambient Conditions
Catalysis Science and Technology. 2016. V.6. N11. P.3918-3928. DOI: 10.1039/C5CY01588J WOS Scopus РИНЦ CAPlusCA OpenAlex

Поступила в редакцию:	21 сент. 2015 г.
Принята к публикации:	23 дек. 2015 г.
Опубликована online:	28 дек. 2015 г.

Web of science:	WOS:000378276100030
Scopus:	2-s2.0-84973094052
РИНЦ:	27098743
Chemical Abstracts:	2015:2089953
Chemical Abstracts (print):	164:608582
OpenAlex:	W2212110344

БД	Цитирований
Web of science	24
Scopus	25
РИНЦ	26
OpenAlex	27