Acid pretreatment of support promotes Pd/SiO₂ activity for formaldehyde oxidation at room temperature

Abstract

Formaldehyde (HCHO) is a major pollutant in indoor air. The development of low-cost and high-efficiency technologies to remove HCHO at room temperature is thus of great importance. Here, we developed...

Cerium modification enhances the performance of Pd/USY for formaldehyde catalytic oxidation at room temperature

“…The experimental conditions for the activity testing of the catalysts for HCHO catalytic oxidation were according to our previous work, 29 but the WHSV was controlled at 300 000 mL g −1 h −1 .…”

Abnormal inhibiting effect of H2O on Pd/SiO2 and Na–Pd/SiO2 catalysts for HCHO oxidation

“…Silica, as an oxide characterized by multiple surface hydroxyl groups, is often used as a catalyst carrier. [23][24][25] Wu et al found that vacuum calcination of the Pt/SiO 2 catalyst could effectively improve the dispersion of Pt on the catalyst, controlling the dispersion of Pt to below 1 nm. 26 Sodiumstabilized Pt/SiO x -TiO 2 nanoparticles can be maintained in a humid microenvironment and exhibit excellent HCHO decomposition performance at low temperature and in a dry environment.…”