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- Title
Fabrication of TNU-9 catalysts containing copper by organic–inorganic hybrid method for the selective catalytic reduction in NO<sub>x</sub> by NH<sub>3</sub>.
- Authors
Yu, Miao; Li, Zhifang; Zhang, Qian; Zhou, Boyang; Yang, Changlong
- Abstract
Organic–inorganic hybrid materials with highly ordered pore structure are based on the introduction of organic bridging groups on the channel walls of the pore structure. The introduction of organic bridging groups not only modulates the physical and chemical properties of the prepared mesoporous materials, but also improves the functionalization of the mesoporous materials. In this thesis, we mainly prepared TNU-9 catalysts containing copper by organic–inorganic hybrid method and investigated the NH3-SCR properties of the materials. The results showed that the NOx conversion of Cu@PMO-TNU-9-2% was more than 99% at 350 °C, and N2 selectivity was nearly 99% at 300–450 °C. In addition, the resistance test results showed that the conversion of NOx could still reach more than 90% within 7 h with the introduction of 100 ppm SO2 at 300 °C and a gas flow rate of 100 ml/min. Furthermore, the NOx conversion of Cu@PMO-TNU-9–2% catalyst decreased to 90.5% and then was stabilized when 100 ppm water vapor was introduced.
- Subjects
CATALYTIC reduction; COPPER catalysts; CHEMICAL properties; POROSITY; HYBRID materials
- Publication
Research on Chemical Intermediates, 2024, Vol 50, Issue 3, p1355
- ISSN
0922-6168
- Publication type
Article
- DOI
10.1007/s11164-023-05170-9