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Transactions of Tianjin University

, Volume 25, Issue 6, pp 595–602 | Cite as

Hydrogenation of Alkylanthraquinone Over Pore-Expanded and Channel-Shortened Pd/SBA-15

  • Nan Wang
  • Qingqing Ma
  • Enxian Yuan
  • Li WangEmail author
Research Article

Abstract

SBA-15 silica was synthesized by adding normal paraffin and alkyl benzene as swelling agents and using a low-temperature gelation procedure. Pd was then impregnated on SBA-15, yielding a catalyst. Characterizations of the catalyst by X-ray diffraction, N2 adsorption/desorption, scanning electron microscopy, transmission electron micrographs, X-ray photoelectron spectroscopy, in situ FTIR, and a hydrogenation test of 2-ethyl-anthraquinone reveal that the addition of C6‒C9 normal paraffin and 1,3,5-triisopropylbenzene could enlarge the pore diameter without a significant loss of ordered structure. Moreover, the length of SBA-15 pore channels decreased significantly. However, the sizes of Pd particles increase as the pore diameter is enlarged. The largest pore size (13.6 nm) and short length of pore channels (ca. 0.35 μm) are achieved by adding n-hexane. As a result, this catalyst exhibits the highest hydrogenation activity with an approximately 100% improvement, compared with a conventionally synthesized catalyst in the absence of a swelling agent.

Keywords

Hydrogenation Anthraquinone SBA-15 Swelling agent Hydrogen peroxide 

Notes

Acknowledgements

This work is supported by the National Natural Science Foundation of China (No. 21676184).

Supplementary material

12209_2019_199_MOESM1_ESM.docx (1.4 mb)
Supplementary material 1 (DOCX 1384 kb)

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Copyright information

© Tianjin University and Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and TechnologyTianjin UniversityTianjinChina
  2. 2.Collaborative Innovation Center of Chemical Science and EngineeringTianjinChina

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