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Heterogeneous Catalysts: Synthesis and Application

A special issue of Molecules (ISSN 1420-3049).

Deadline for manuscript submissions: closed (30 April 2024) | Viewed by 746

Special Issue Editor


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Guest Editor
College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
Interests: environmental catalysis; controllable preparation of nanomaterials; heterogeneous catalytic reaction engineering; process integration and optimization

Special Issue Information

Dear Colleagues,

This special issue will focus on controllable catalyst synthesis with detailed preparation method and procedure thus repeatable by readers, and perfectly with clear characterizations for the structure aiming in atomic levels. It is very encouraging to have theoretical calculation such as DFT to guide the catalyst design. Therefore, basic structure-performance relationship may be set up based on the investigation results.

For application, the catalyst stability and selectivity will be emphasized although activity is still important. It will be excellent if the upstream e.g., feedstock availability and treatments and downstream processes analysis are included in the catalyst developments. Synthesis, development and application of catalyst, fine chemicals are encouraging.

Prof. Dr. Binghui Chen
Guest Editor

Manuscript Submission Information

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Keywords

  • controllable catalyst synthesis
  • catalyst characterizations
  • DFT
  • structure-performance study
  • fine chemicals catalysis
  • green catalytic process

Published Papers (1 paper)

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Research

13 pages, 3711 KiB  
Article
Cu/ZrO2 Catalyst Modified with Y2O3 for Effective and Stable Dehydration of Glycerol to Acetol
by Zhoubing Liang, Huan Li, Jianrong Xie, Songshou Ye, Jinbao Zheng and Nuowei Zhang
Molecules 2024, 29(2), 356; https://doi.org/10.3390/molecules29020356 - 11 Jan 2024
Viewed by 588
Abstract
Glycerol is a main by-product of biodiesel production, and its further processing is essential for the biorefinery. In this paper, a highly active and stable catalyst for the catalytic dehydration of glycerol to acetol is obtained by modifying a Cu-Zr (ZrO2 supported [...] Read more.
Glycerol is a main by-product of biodiesel production, and its further processing is essential for the biorefinery. In this paper, a highly active and stable catalyst for the catalytic dehydration of glycerol to acetol is obtained by modifying a Cu-Zr (ZrO2 supported Cu) catalyst with Y2O3 using a co-precipitation method. It is found that the addition of Y2O3 effectively enhances the catalytic performance of Cu-Zr. Cu-Zr reaches the highest selectivity (82.4%) to acetol at 24 h. However, the selectivity decreases to 70.1% at 36 h. The conversion also decreases from 99.2 to 91.1%. Cu-Zr-Y exhibits very high activity and very good stability. During a 250 h reaction, no deactivation is observed, and the conversion and selectivity remains ~100% and ~85%, respectively. The catalysts are characterized by XRD, TEM, H2-TPR, and NH3-TPD. The results reveal that Y2O3 not only improves the dispersion of Cu and the acidity of the catalyst but also restrains the agglomeration of Cu particles and assists retaining the main structure of support under reaction conditions. The high dispersion, high acidity content, and stable structure contributes to the excellent catalytic performance of Cu-Zr-Y. Full article
(This article belongs to the Special Issue Heterogeneous Catalysts: Synthesis and Application)
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