Effect of Preparation Methods on the Physicochemical and Functional Properties of Ni/CeO2 Catalysts | Sciact - CRIS-система Института катализа

Effect of Preparation Methods on the Physicochemical and Functional Properties of Ni/CeO2 Catalysts Научная публикация

Журнал

Kinetics and Catalysis
ISSN: 0023-1584 , E-ISSN: 1608-3210

Вых. Данные

Год: 2019, Том: 60, Номер: 2, Страницы: 221-230 Страниц : 10 DOI: 10.1134/s002315841902006x

Ключевые слова

Ni catalysts, cerium dioxide, preparation method, ethanol, reforming

Авторы

Matus E.V. ^1,2 , Shlyakhtina A.S. ^1,2 , Sukhova O.B. ¹ , Ismagilov I.Z. ¹ , Ushakov V.A. ¹ , Yashnik S.A. ¹ , Nikitin A.P. ³ , Bharali P. ⁴ , Kerzhentsev M.A. ¹ , Ismagilov Z.R. ^1,3

Организации

1	Boreskov Institute of Catalysis, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630090 Russia
2	Novosibirsk State Technical University, Novosibirsk, 630073 Russia
3	Institute of Coal Chemistry and Material Science FRS CCC, Siberian Branch, Russian Academy of Sciences, Kemerovo, 650000 Russia
4	Tezpur University, Napaam, Tezpur, 784 028 Assam, India

Информация о финансировании (1)

Российский фонд фундаментальных исследований

18-53-45012

The effect of preparation procedures (a polymer ester precursor method and incipient wetness impregnation) on the physicochemical and functional properties of Ni/CeO2 catalysts with different nickel contents (0–15 wt %) was studied in order to develop highly active and carbonization-resistant catalysts for hydrocarbon reforming. Based on the results of studying the samples by low-temperature nitrogen adsorption, X-ray phase analysis, Raman spectroscopy, transmission electron microscopy and temperature-programmed reduction with hydrogen, it was found that the textural, structural, and redox properties of the materials depend on the method of their synthesis. As compared with the samples prepared by impregnation, the Ni/CeO2 catalysts obtained by the polymer ester precursor method were characterized by different active component stabilization forms (a Ce1 –xNixOy solid solution phase and NiO particles <5 nm in size vs. a NiO phase with a particle size of 5–50 nm), a smaller average size of CeO2 crystallites (5.5 vs. 11 nm), a high specific surface area (105 vs. 75 m2/g), a defect structure, and a decreased reducibility. It was found that the samples of both series provided comparable yields of hydrogen (to 50% at 600°C) in an autothermal ethanol reforming reaction, but the Ni/CeO2 catalysts synthesized by the polymer ester precursor method were more resistant to the formation of carbonaceous deposits.

Matus E.V. , Shlyakhtina A.S. , Sukhova O.B. , Ismagilov I.Z. , Ushakov V.A. , Yashnik S.A. , Nikitin A.P. , Bharali P. , Kerzhentsev M.A. , Ismagilov Z.R.
Effect of Preparation Methods on the Physicochemical and Functional Properties of Ni/CeO2 Catalysts
Kinetics and Catalysis. 2019. V.60. N2. P.221-230. DOI: 10.1134/s002315841902006x WOS Scopus РИНЦ CAPlus OpenAlex

Матус Е.В. , Шляхтина А.С. , Сухова О.Б. , Исмагилов И.З. , Ушаков В.А. , Яшник С.А. , Никитин А.П. , Bharali P. , Керженцев М.А. , Исмагилов З.Р.
Влияние метода приготовления на физико-химические и функциональные свойства Ni/CeO2 -катализаторов
Кинетика и катализ. 2019. Т.60. №2. С.245-255. DOI: 10.1134/s0453881119020072 РИНЦ OpenAlex

Поступила в редакцию:	29 нояб. 2018 г.
Принята к публикации:	29 нояб. 2018 г.
Опубликована в печати:	1 мар. 2019 г.
Опубликована online:	16 мая 2019 г.

Web of science:	WOS:000468190900013
Scopus:	2-s2.0-85065920123
РИНЦ:	39006508
Chemical Abstracts:	2019:989515
OpenAlex:	W2946377926

БД	Цитирований
Scopus	21
Web of science	21
РИНЦ	23
OpenAlex	21