ZSM-5||Ag/γ-Al₂O₃ Tandem Catalyst

100% HCHO conversion at 55 °C

Strong metal-support interaction regulates Ag nanoparticle growth, suppressing migration and coalescence to maintain highly dispersed active sites for efficient tandem catalytic oxidation of formaldehyde at low temperature.

Ding, Yue · Wang, Hui · Huang, Bin · Yuchun, Chang · Yang, Hua · Qu, Zhenping

ACS Catalysis 2025

Specifications

at C vs
{'zh': '100', 'en': '32'} %

Advantages

Strong MSI and high diffusion barrier trigger slow Ostwald ripening, while weak MSI and low barrier promote particle migration and coalescence

Activity difference is strongly related to Ag NP size-controlled activation of intermediates and O₂