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Related Experiment Video

Updated: Jun 25, 2025

Synthesis and Testing of Supported Pt-Cu Solid Solution Nanoparticle Catalysts for Propane Dehydrogenation

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Published on: July 18, 2017

One-Pot Cu/SAPO-34 for Continuous Methane Selective Oxidation to Methanol.

Lanlan Sun¹, Yu Wang², Xuesong Gu¹

¹Department of Application Chemistry, College of Biotechnology and Food Science, Tianjin University of Commerce, Tianjin 300134, China.

Molecules (Basel, Switzerland)

|May 25, 2024

Summary

This study presents a novel copper-exchanged silicoaluminophosphate (Cu/SAPO-34) catalyst for efficiently converting methane to methanol. The catalyst achieves high yields and selectivity, highlighting the crucial role of trace oxygen in the process.

Keywords:

Cu/SAPO-34 MtM one-pot synthesis physical-phase characterization reaction condition

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Area of Science:

Catalysis
Materials Science
Chemical Engineering

Background:

Methane oxidation to methanol is a key process for converting natural gas into valuable chemicals.
Developing efficient and selective catalysts for this transformation remains a significant challenge.

Purpose of the Study:

To synthesize and characterize a novel Cu/SAPO-34 catalyst for continuous methane to methanol oxidation.
To investigate the catalytic performance and understand the active sites involved.

Main Methods:

One-pot synthesis of Cu/SAPO-34 with low silicon content and copper loading.
Characterization using XRD, SEM, TEM, H2-TPR, NH3-TPD, UV-vis, and FTIR.
Methane oxidation reaction under controlled conditions.

Main Results:

Achieved a methanol space-time yield of 504 μmolCH3OH/gcat/h.
Exceeded 1800 mmolCH3OH/molCu/h methanol yield at 623 K.
Identified Cu2+ in hexagonal rings and elliptical cages as the active center.

Conclusions:

The synthesized Cu/SAPO-34 catalyst demonstrates high efficiency for methane to methanol conversion.
Trace oxygen is essential for maintaining high methanol selectivity.
The location of Cu2+ ions is critical for catalytic activity.