ZSM-23-Supported Nickel Phosphide Catalysts for n-Alkane Hydroisomerization Full article
| Journal |
Catalysis Letters
ISSN: 1011-372X , E-ISSN: 1572-879X |
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| Output data | Year: 2025, Volume: 155, Number: 2, Article number : 60, Pages count : 11 DOI: 10.1007/s10562-024-04895-5 | ||||
| Tags | Hydroisomerization; Nickel phosphide; ZSM-23 zeolite | ||||
| Authors |
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| Affiliations |
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Funding (1)
| 1 | Ministry of Science and Higher Education of the Russian Federation | FWUR-2024-0037 |
Abstract:
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.
Cite:
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. 60 :1-11. DOI: 10.1007/s10562-024-04895-5 WOS Scopus РИНЦ AN OpenAlex publication_identifier_short.sciact_skif_identifier_type
ZSM-23-Supported Nickel Phosphide Catalysts for n-Alkane Hydroisomerization
Catalysis Letters. 2025. V.155. N2. 60 :1-11. DOI: 10.1007/s10562-024-04895-5 WOS Scopus РИНЦ AN OpenAlex publication_identifier_short.sciact_skif_identifier_type
Dates:
| Submitted: | Sep 19, 2024 |
| Accepted: | Nov 16, 2024 |
| Published online: | Jan 2, 2025 |
| Published print: | Feb 1, 2025 |
Identifiers:
| Web of science: | WOS:001389943500009 |
| Scopus: | 2-s2.0-85213949005 |
| Elibrary: | 81403219 |
| Chemical Abstracts: | 2025:58200 |
| OpenAlex: | W4406002870 |
| publication_identifier.sciact_skif_identifier_type: | 3655 |
Citing:
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