Hydrodeoxygenation of Guaiacol Catalyzed by High-Loading Ni Catalysts Supported on SiO2-TiO2 Binary Oxides

Mohong Lu; Yu Sun; Peng Zhang; Jie Zhu; Mingshi Li; Yuhua Shan; Jianyi Shen; Chunshan Song

doi:10.1021/acs.iecr.8b04517

Hydrodeoxygenation of Guaiacol Catalyzed by High-Loading Ni Catalysts Supported on SiO₂-TiO₂ Binary Oxides

Mohong Lu
, Yu Sun
, Peng Zhang
, Jie Zhu
, Mingshi Li
, Yuhua Shan
, Jianyi Shen
, Chunshan Song

Research output: Contribution to journal › Article › peer-review

77 Scopus citations

Abstract

A series of SiO₂-TiO₂ binary oxides supported high loading Ni catalysts were prepared using the co-precipitation method and tested in guaiacol hydrodeoxygenation (HDO). The catalysts were characterized using N₂ adsorption-desorption, XRD, TEM, FT-IR, XPS, H₂-TPD, and NH₃-TPD. The formation of Si-O-Ti bond in the SiO₂-TiO₂ binary oxides was verified by XPS, which can increase the total amount of acidic sites and enhance the interaction between metal Ni and TiO₂. The oxygen defect sites of TiO₂ were formed near the perimeter of the metal-support interface, leading to generation of Ni^δ--O_V-Ti³⁺ interface sites, which play the role of active centers to catalyze guaiacol HDO. These positive factors promoted HDO activity over Ni catalysts supported on binary oxides, compared to Ni loaded on single oxide supports. The selectivity of products indicates relatively high temperature and low H₂ pressure are beneficial for producing oxygen-free aromatics in HDO of guaiacol.

Original language	English (US)
Pages (from-to)	1513-1524
Number of pages	12
Journal	Industrial and Engineering Chemistry Research
Volume	58
Issue number	4
DOIs	https://doi.org/10.1021/acs.iecr.8b04517
State	Published - Jan 30 2019

All Science Journal Classification (ASJC) codes

General Chemistry
General Chemical Engineering
Industrial and Manufacturing Engineering

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10.1021/acs.iecr.8b04517

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@article{9748ce2916fd49fdb3bf14580c437bca,

title = "Hydrodeoxygenation of Guaiacol Catalyzed by High-Loading Ni Catalysts Supported on SiO2-TiO2 Binary Oxides",

abstract = "A series of SiO2-TiO2 binary oxides supported high loading Ni catalysts were prepared using the co-precipitation method and tested in guaiacol hydrodeoxygenation (HDO). The catalysts were characterized using N2 adsorption-desorption, XRD, TEM, FT-IR, XPS, H2-TPD, and NH3-TPD. The formation of Si-O-Ti bond in the SiO2-TiO2 binary oxides was verified by XPS, which can increase the total amount of acidic sites and enhance the interaction between metal Ni and TiO2. The oxygen defect sites of TiO2 were formed near the perimeter of the metal-support interface, leading to generation of Niδ--OV-Ti3+ interface sites, which play the role of active centers to catalyze guaiacol HDO. These positive factors promoted HDO activity over Ni catalysts supported on binary oxides, compared to Ni loaded on single oxide supports. The selectivity of products indicates relatively high temperature and low H2 pressure are beneficial for producing oxygen-free aromatics in HDO of guaiacol.",

author = "Mohong Lu and Yu Sun and Peng Zhang and Jie Zhu and Mingshi Li and Yuhua Shan and Jianyi Shen and Chunshan Song",

note = "Funding Information: This work was financially supported by the National Natural Science Foundation of China (Grants 21761132006 and 21676029). The authors also acknowledge the Natural Science Foundation of Jiangsu Higher Education Institutions (Grant 12KJB530001) and the Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD) for the financial support. Publisher Copyright: {\textcopyright} 2019 American Chemical Society.",

year = "2019",

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doi = "10.1021/acs.iecr.8b04517",

language = "English (US)",

volume = "58",

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journal = "Industrial and Engineering Chemistry Research",

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T1 - Hydrodeoxygenation of Guaiacol Catalyzed by High-Loading Ni Catalysts Supported on SiO2-TiO2 Binary Oxides

AU - Lu, Mohong

AU - Sun, Yu

AU - Zhang, Peng

AU - Zhu, Jie

AU - Li, Mingshi

AU - Shan, Yuhua

AU - Shen, Jianyi

AU - Song, Chunshan

N1 - Funding Information: This work was financially supported by the National Natural Science Foundation of China (Grants 21761132006 and 21676029). The authors also acknowledge the Natural Science Foundation of Jiangsu Higher Education Institutions (Grant 12KJB530001) and the Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD) for the financial support. Publisher Copyright: © 2019 American Chemical Society.

PY - 2019/1/30

Y1 - 2019/1/30

N2 - A series of SiO2-TiO2 binary oxides supported high loading Ni catalysts were prepared using the co-precipitation method and tested in guaiacol hydrodeoxygenation (HDO). The catalysts were characterized using N2 adsorption-desorption, XRD, TEM, FT-IR, XPS, H2-TPD, and NH3-TPD. The formation of Si-O-Ti bond in the SiO2-TiO2 binary oxides was verified by XPS, which can increase the total amount of acidic sites and enhance the interaction between metal Ni and TiO2. The oxygen defect sites of TiO2 were formed near the perimeter of the metal-support interface, leading to generation of Niδ--OV-Ti3+ interface sites, which play the role of active centers to catalyze guaiacol HDO. These positive factors promoted HDO activity over Ni catalysts supported on binary oxides, compared to Ni loaded on single oxide supports. The selectivity of products indicates relatively high temperature and low H2 pressure are beneficial for producing oxygen-free aromatics in HDO of guaiacol.

AB - A series of SiO2-TiO2 binary oxides supported high loading Ni catalysts were prepared using the co-precipitation method and tested in guaiacol hydrodeoxygenation (HDO). The catalysts were characterized using N2 adsorption-desorption, XRD, TEM, FT-IR, XPS, H2-TPD, and NH3-TPD. The formation of Si-O-Ti bond in the SiO2-TiO2 binary oxides was verified by XPS, which can increase the total amount of acidic sites and enhance the interaction between metal Ni and TiO2. The oxygen defect sites of TiO2 were formed near the perimeter of the metal-support interface, leading to generation of Niδ--OV-Ti3+ interface sites, which play the role of active centers to catalyze guaiacol HDO. These positive factors promoted HDO activity over Ni catalysts supported on binary oxides, compared to Ni loaded on single oxide supports. The selectivity of products indicates relatively high temperature and low H2 pressure are beneficial for producing oxygen-free aromatics in HDO of guaiacol.

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U2 - 10.1021/acs.iecr.8b04517

DO - 10.1021/acs.iecr.8b04517

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Hydrodeoxygenation of Guaiacol Catalyzed by High-Loading Ni Catalysts Supported on SiO₂-TiO₂ Binary Oxides

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