Journal
CRYSTALS
Volume 12, Issue 4, Pages -Publisher
MDPI
DOI: 10.3390/cryst12040545
Keywords
Cu-ZSM-5 catalysts; TPR; green chemistry
Funding
- Autonomous Metropolitan University
- National Council of Science and Technology (CONACyT) [CVU: 749385]
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This study focuses on the development of catalysts in the field of green chemistry. Copper-based catalysts with optimal physicochemical properties were synthesized using two ion exchange methods under controlled conditions, and their characteristics were compared and analyzed.
As catalysis is one of the pillars of green chemistry, this work aimed at continuing the development of synthesized catalysts under controlled conditions that allow the attainment of materials with the best physicochemical properties for the process for which they were designed. Based on this, the synthesis, characterization, and comparison of copper-based catalysts supported on ammonium and acidic ZSM-5-type zeolite by two ion exchange methods, liquid phase and solid state, are presented. The catalysts obtained were characterized by SEM/EDS, FTIR, XRD, and TPR to study the effect of the synthesis method on the physicochemical properties of each catalyst. The SEM/EDS results showed a homogeneous distribution of copper in the zeolite and the TPR led to determining the temperature ranges for the reduction of Cu2+ -> Cu+ -> Cu-0. Furthermore, the X-ray results showed no modification of the structure of the zeolite after ion exchange, heat treatment, and TPR analysis.
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