ZSM-23-Supported Nickel Phosphide Catalysts for n-Alkane Hydroisomerization | Sciact - CRIS-система Института катализа

ZSM-23-Supported Nickel Phosphide Catalysts for n-Alkane Hydroisomerization Научная публикация

Журнал

Catalysis Letters
ISSN: 1011-372X , E-ISSN: 1572-879X

Вых. Данные

Год: 2025, Том: 155, Номер: 2, Страницы: 60 Страниц : 11 DOI: 10.1007/s10562-024-04895-5

Ключевые слова

Hydroisomerization; Nickel phosphide; ZSM-23 zeolite

Авторы

Bogomolova Tatyana S. ¹ , Smirnova Marina Yu. ¹ , Parfenov Mikhail V. ¹ , Cherepanova Svetlana V. ¹ , Panafidin Maxim A. ² , Klimov Oleg V. ¹ , Noskov Alexander S. ¹

Организации

1	Boreskov Institute of Catalysis SB RAS, Novosibirsk 630090, Russia
2	Synchrotron Radiation Facility SKIF, Boreskov Institute of Catalysis SB RAS, Kol’tsovo 630559, Russia

Информация о финансировании (1)

Министерство науки и высшего образования Российской Федерации (с 15 мая 2018)

FWUR-2024-0037

A series of supported Ni phosphide bifunctional hydroisomerization catalysts (Ni2P/ZSM-23/Al2O3) was synthesized by means of Ni hypophosphite reduction at different temperatures. The structure and morphology of Ni phosphide phase were determined by X-ray diffraction (XRD) and transmission electron microscopy (TEM). The surface chemical analysis was performed using X-ray photoelectron spectroscopy (XPS). The hydro/dehydrogenation and acid functions of catalysts were characterized by CO chemisorption, NH3-TPD and IR-spectroscopy of adsorbed pyridine (IR-Py). The reduction of supported precursor at the temperature lying in the range of 550–650 ⁰С resulted in high activity and iso-selectivity in n-decane conversion. The reduction of the supported component at 500 ⁰C or re-reduction of ex-situ reduced and passiv- ated catalysts at 450 ⁰C led to the formation of impurities of other Ni phosphides such as NiP and Ni5P4 and had a negative impact on n-decane conversion. Both the Brønsted acidity and Ni2P dispersion of the catalysts declined with increasing Ni2P content which were accompanied by a drop in their activity without loss of iso-selectivity.

Bogomolova T.S. , Smirnova M.Y. , Parfenov M.V. , Cherepanova S.V. , Panafidin M.A. , Klimov O.V. , Noskov A.S.
ZSM-23-Supported Nickel Phosphide Catalysts for n-Alkane Hydroisomerization
Catalysis Letters. 2025. V.155. N2. P.60. DOI: 10.1007/s10562-024-04895-5 WOS Scopus OpenAlex СКИФ ID

Поступила в редакцию:	19 сент. 2024 г.
Принята к публикации:	16 нояб. 2024 г.
Опубликована online:	2 янв. 2025 г.
Опубликована в печати:	1 февр. 2025 г.

Web of science:	WOS:001389943500009
Scopus:	2-s2.0-85213949005
OpenAlex:	W4406002870
СКИФ ID:	3655

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