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author:

Qiu, J. (Qiu, J..) [1] | Liu, Y. (Liu, Y..) [2] | Zhang, J. (Zhang, J..) [3] | Zhou, B. (Zhou, B..) [4] | Yang, Q. (Yang, Q..) [5] | Zhang, L. (Zhang, L..) [6] | Chen, J. (Chen, J..) [7] | Wang, B. (Wang, B..) [8] | Lin, L. (Lin, L..) [9] | Zeng, X. (Zeng, X..) [10]

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Abstract:

A series of zirconium phosphate (ZrP) loaded H-beta-25 zeolite (i.e., ZrP@HB) multifunctional composite catalysts were synthesized by a simple co-precipitation method, and the one-pot upgrading for the transfer hydrogenation of furfural to γ-valerolactone (GVL) was systematically investigated through various characterizations and catalytic evaluation experiments. Comparative characterization analysis of the ZrP@HB-X(Y) catalysts showed that the ZrP@HB-4(4) catalyst has uniform distribution of elements, exhibiting a large specific surface area and hierarchical mesoporous/microporous structure. Fourier transform infrared spectroscopy of pyridine (Py-FTIR) and NH3 temperature-programmed desorption characterizations indicated the presence of Lewis and Brønsted acid sites, as well as weak, moderate, and strong acid sites in the ZrP@HB-4(4) catalyst. It was confirmed by X-ray photoelectron spectroscopy and FTIR that the main reason for Lewis and Brønsted acid sites formation is the presence of P-O-Zr, P-O-H, and HB zeolite on the ZrP@HB-4(4) catalyst. The HB zeolite as well as Zr and P ratio, can be easily adjusted to efficiently regulate the acidity strength and Lewis and Brønsted acid sites of the ZrP@HB-X(Y) catalysts. The catalytic experiments demonstrated that the physicochemical properties of the ZrP@HB-4(4) catalyst mentioned above significantly enhance the GVL production. Notably, Lewis and Brønsted acid sites as well as transition metal sites of Zr in the ZrP@HB-4(4) catalyst were identified as the main factors that enhance the yield of the target product. By optimizing the reaction conditions, the yield of GVL could be as high as 88.16%. Reusability experiments demonstrate that the ZrP@HB-4(4) catalyst possesses excellent stability. Using levulinic acid as the substrate, the yield of GVL reached 93.92%, suggesting its potential versatility. © 2024 Elsevier B.V.

Keyword:

Efficient upgrading Furfural Levulinic acid Multifunctional catalyst Transfer hydrogenation γ-Valerolactone

Community:

  • [ 1 ] [Qiu J.]School of Advanced Manufacturing, Fuzhou University, Jinjiang, 362251, China
  • [ 2 ] [Qiu J.]Development Center of Science and Education Park of Fuzhou University, Jinjiang, 362251, China
  • [ 3 ] [Liu Y.]School of Advanced Manufacturing, Fuzhou University, Jinjiang, 362251, China
  • [ 4 ] [Zhang J.]School of Advanced Manufacturing, Fuzhou University, Jinjiang, 362251, China
  • [ 5 ] [Zhou B.]School of Advanced Manufacturing, Fuzhou University, Jinjiang, 362251, China
  • [ 6 ] [Yang Q.]School of Advanced Manufacturing, Fuzhou University, Jinjiang, 362251, China
  • [ 7 ] [Zhang L.]School of Advanced Manufacturing, Fuzhou University, Jinjiang, 362251, China
  • [ 8 ] [Zhang L.]Development Center of Science and Education Park of Fuzhou University, Jinjiang, 362251, China
  • [ 9 ] [Chen J.]School of Advanced Manufacturing, Fuzhou University, Jinjiang, 362251, China
  • [ 10 ] [Wang B.]School of Advanced Manufacturing, Fuzhou University, Jinjiang, 362251, China
  • [ 11 ] [Lin L.]College of Energy, Xiamen University, Xiamen, 361102, China
  • [ 12 ] [Zeng X.]College of Energy, Xiamen University, Xiamen, 361102, China

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Source :

Industrial Crops and Products

ISSN: 0926-6690

Year: 2024

Volume: 214

5 . 6 0 0

JCR@2023

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ESI Highly Cited Papers on the List: 0 Unfold All

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Chinese Cited Count:

30 Days PV: 0

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