The effects of SMSI on m-Cresol Hydrodeoxygenation over Pt/Nb2O5 and Pt/TiO2 [electronic resource]

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Ngôn ngữ: eng

Ký hiệu phân loại: 660.6 Biotechnology

Thông tin xuất bản: Washington, D.C. : Oak Ridge, Tenn. : United States. Dept. of Energy. Office of Science ; Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy, 2021

Mô tả vật lý: Size: p. 102-108 : , digital, PDF file.

Bộ sưu tập: Metadata

ID: 262516

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The hydrodeoxygenation (HDO) of m-cresol was studied on Pt/Nb
2
O
5
/MgAl
2
O
4
and Pt/TiO
2
/MgAl
2
O
4
catalysts to understand the effects of Strong Metal Support Interactions (SMSI). The Nb
2
O
5
and TiO
2
supports were prepared as 0.7-nm films on MgAl
2
O
4
by Atomic Layer Deposition (ALD) to ensure that the structures of the catalyst were the same. When reduced at 773 K to place Pt in the encapsulated state, Pt/Nb
2
O
5
/MgAl
2
O
4
was much less active than Pt/MgAl
2
O
4
at 573 K but much more active at 623 K. While Pt/MgAl
2
O
4
deactivated rapidly due to coking, Pt/Nb
2
O
5
/MgAl
2
O
4
showed significantly better coke tolerance and was almost 100% selective towards toluene production. Pt/Nb
2
O
5
/MgAl
2
O
4
reduced at lower temperatures exhibited intermediate catalytic properties. The effect of reduction temperature on Pt/TiO
2
/MgAl
2
O
4
was much less and this catalyst was more similar to Pt/MgAl
2
O
4
than its Nb
2
O
5
counterpart. Lastly, the implications of these results for understanding the nature of oxide promoters on HDO of m-cresol are discussed.

1. 09 biomass fuels
2. Cresol
3. Hydrodeoxygenation
4. Platinum
5. Support effects

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The effects of SMSI on m-Cresol Hydrodeoxygenation over Pt/Nb<sub>2</sub>O<sub>5</sub> and Pt/TiO<sub>2</sub> [electronic resource]