Platinum Deposited on Carbon Supports for the Complete Detoxification of Formaldehyde at Room Temperature under Humid Conditions

Abstract

Uniform platinum nanoparticles are deposited on porous carbon supports using a polymeric precursor method. The presented approach has a high potential since hydrophilic and hydrophobic carbon supports are homogeneously impregnated without any preliminary treatment. The platinum nanoparticles on porous carbon composites show a high catalytic activity in the complete detoxification of formaldehyde. Catalysts with platinum loading as low as 0.75 wt.% enable a complete conversion of 700 ppm formaldehyde into carbon dioxide at a relative humidity up to 60% at room temperature. We assign this remarkable catalytic acitivty to a symbiotic effect of the platinum nanoparticles with the carbon support in terms of an oversolubility of formaldehyde in water confined in the pores of the support material.

Micrometre‐Sized Porous Polymer Beads as Heterogeneous Molecular Catalysts

“…Supporting Information for this article can be found under DOI: https://doi.org/10.1002/cite.202300023. This section includes additional references to primary literature relevant for this research [35][36][37][38].…”