Excellent room temperature catalytic activity for formaldehyde oxidation on a single-atom iron catalyst in a moist atmosphere

Abstract

For human safety, efficient removal of formaldehyde in indoor environments is essential. However, removing formaldehyde from indoor environment given the low-temperature and moisture remains a challenge. In this study, a...

Recent Progress on Density Functional Theory Calculations for Catalytic Control of Air Pollution

“…Designing a suitable catalyst based on DFT calculations will be of significant help to optimize and improve the catalyst performance of catalysts. Liu et al proposed a metal–organic framework-based single-atom iron catalyst (Fe SA ) as a potential catalyst for formaldehyde oxidation . Through computational analysis of the adsorption properties and reaction pathways of O 2 on three distinct single-atom Fe catalysts, Fe SA -N 5 -C catalysts were identified as possessing excellent water resistance and high catalytic activity.…”

“…Liu et al proposed a metal−organic framework-based single-atom iron catalyst (Fe SA ) as a potential catalyst for formaldehyde oxidation. 83 Through computational analysis of the adsorption properties and reaction pathways of O 2 on three distinct singleatom Fe catalysts, Fe SA -N 5 -C catalysts were identified as possessing excellent water resistance and high catalytic activity. The computational analysis was found to be in good agreement with the experimental results.…”

Synergistic effect of diatomic materials on efficient formaldehyde sensing and degradation

“…19,20 The interaction of two adjacent atoms in DA structures effectively stabilizes the intermediates, leading to improved activity and selectivity. 21,22 At present, although the adsorption detection and detection of HCHO by SAs has been demonstrated in experiments 23,24 and simulations, 25 DA materials that possibly offer higher performance are still lacking in reports. As a crucial component of DA systems, the substrate plays a vital role.…”

Formaldehyde Adsorption and Degradation at Room Temperature Boosted by Increasing the Specific Surface Area and Surface-Active Oxygen Content of Manganese Oxides

“…Compared with the above methods, thermal catalytic oxidation can be carried out under light-free conditions and has the characteristics of low cost, high efficiency, and no secondary pollution, which makes it stand out among many treatment methods. , Thermal catalytic oxidation can be divided into precious metal-based catalysts and nonprecious metal-based catalysts. Compared with precious metal catalysts, − nonprecious metal catalysts have attracted extensive attention from researchers due to their rich raw materials and better catalytic activity. − For example, Li et al synthesized Co 3 O 4 nanosheets with different thicknesses by the solvothermal method, in which Co 3 O 4 nanosheets with a thickness of 2 nm could achieve >90% formaldehyde removal at room temperature. Lu et al synthesized CeO 2 –Co 3 O 4 mixed-oxide catalysts by a citric acid sol–gel method, and the strong interaction between CeO 2 and Co 3 O 4 enabled the complete oxidation of formaldehyde at 80 °C.…”