Layer-by-layer fabrication of montmorillonite coating immobilizing Cu<sub>2</sub>O nanoparticles for continuously catalyzing glycerol to dihydroxyacetone

Kejin Li; Jiahui Liu; Dajian Li; Xiaolan Chen; Chunhui Zhou

doi:10.1016/j.cjche.2023.11.024

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Layer-by-layer fabrication of montmorillonite coating immobilizing Cu₂O nanoparticles for continuously catalyzing glycerol to dihydroxyacetone

Updated：2026-01-06

- Layer-by-layer fabrication of montmorillonite coating immobilizing Cu₂O nanoparticles for continuously catalyzing glycerol to dihydroxyacetone
- Layer-by-layer fabrication of montmorillonite coating immobilizing Cu₂O nanoparticles for continuously catalyzing glycerol to dihydroxyacetone
- 中国化学工程学报（英文版） 2024年68卷第4期页码：263-275
- Affiliations：
  
  1. Research Group for Advanced Materials & Sustainable Catalysis (AMSC), State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology,Hangzhou,China,310032
  2. Engineering Research Center of Non-metallic Minerals of Zhejiang Province, Zhejiang Institute of Geology and Mineral Resources,Hangzhou,China,310007
  3. Qing Yang Institute for Industrial Minerals,Qingyang,China,242804
- Author bio：
- Funds：
  
  The authors wish to acknowledge the financial support from the National Natural Science Foundation of China (22072136;41672033), the research grants from Engineering Research Center of Non-metallic Minerals of Zhejiang Province (ZD2023K01), and the projects from Qing Yang Institute for Industrial Minerals (KYY-HX-20220336;KYY- HX-20170557).
- DOI：10.1016/j.cjche.2023.11.024
  中图分类号：
- 纸质出版：2024
- Accepted：
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Kejin Li, Jiahui Liu, Dajian Li, 等. Layer-by-layer fabrication of montmorillonite coating immobilizing Cu₂O nanoparticles for continuously catalyzing glycerol to dihydroxyacetone[J]. 中国化学工程学报（英文版）, 2024,68(4):263-275. DOI: 10.1016/j.cjche.2023.11.024.

O nanoparticles for continuously catalyzing glycerol to dihydroxyacetone[J]. 中国化学工程学报, 2024, 68(4): 263-275.
Kejin Li, Jiahui Liu, Dajian Li, 等. Layer-by-layer fabrication of montmorillonite coating immobilizing Cu₂O nanoparticles for continuously catalyzing glycerol to dihydroxyacetone[J]. 中国化学工程学报（英文版）, 2024,68(4):263-275. DOI: 10.1016/j.cjche.2023.11.024. DOI：

O nanoparticles for continuously catalyzing glycerol to dihydroxyacetone[J]. 中国化学工程学报, 2024, 68(4): 263-275. DOI： 10.1016/j.cjche.2023.11.024.

摘要

Abstract

Microreactors are increasingly used for green and safe chemical processes owing to their benefits of superior mass and heat transfer

increased yield

safety

and simplicity of control. However

immobilizing catalysts in microreactors remains challenging. In this investigation

a technique for creating Cu

O/montmorillonite catalyst coating

using electrostatic attraction for layer-by-layer self-assembly

was proposed. The montmorillonite film's morphology and thickness could be efficiently regulated by adjusting the degree of exfoliation and surface charge of montmorillonite

alongside layer-by-layer coating times. The Cu

O nanoparticles were immobilized using the flow deposition approach. The resulting Cu

O@montmorillonite-film-coated capillary microreactor successfully transformed glycerol into dihydroxyacetone. The conversion of glycerol and product selectivity could be controlled by adjusting the molar ratio of reactants

temperature

residence time

and Cu

O loading. The maximum glycerol conversion observed was 47.6%

with a 27% selectivity toward dihydroxyacetone. The study presents a technique for immobilizing montmorillonite-based catalyst coatings in capillary tubing

which can serve as a foundation for the future application of microreactors in glycerol conversion.

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Layer-by-layer fabrication of montmorillonite coating immobilizing Cu2O nanoparticles for continuously catalyzing glycerol to dihydroxyacetone

Layer-by-layer fabrication of montmorillonite coating immobilizing Cu2O nanoparticles for continuously catalyzing glycerol to dihydroxyacetone

DOI：10.1016/j.cjche.2023.11.024

摘要

Abstract

关键词

Keywords

references

Layer-by-layer fabrication of montmorillonite coating immobilizing Cu₂O nanoparticles for continuously catalyzing glycerol to dihydroxyacetone

Layer-by-layer fabrication of montmorillonite coating immobilizing Cu₂O nanoparticles for continuously catalyzing glycerol to dihydroxyacetone