Copper oxide and manganese dioxide nanoparticles on corrugated glass-fiber supporters promote thermocatalytic oxidation of formaldehyde

Construction of strongly-coupled CeO2/MnO2 heterogeneous catalysts for highly-efficient removal of formaldehyde

“…3b). 32,33 The Mn 3+ /Mn 4+ ratio in CeMn-0.5 (58.8%) is higher than in MnO 2 (47.5%), as shown in Table S2 (ESI†). A large fraction of Mn 3+ in CeMn-0.5 can promote the formation of surface oxygen vacancies to maintain the charge balance.…”

Rare Earth Dopants Enhance Thermocatalytic Activity of Manganese Oxides on Corrugated Silica Carriers for Formaldehyde Degradation

“…Both the Ce−MnO 2 /CSC(II) and Sm−MnO 2 /CSC(II) achieved the best thermocatalytic activity among the Ce−MnO 2 /CSC groups and Sm−MnO 2 /CSC groups, respectively. Notably, the excessive RE oxides in thermocatalysts would cover the active sites of α‐MnO 2 , leading to the negative effects on the HCHO catalytic oxidation [12] . Figure 6 indicated that Ce−MnO 2 /CSC showed the better low‐temperature catalytic property than Sm−MnO 2 /CSC.…”

“…Although the CSC did not have thermocatalytic activity, it was considered as a promising catalytic carrier due to its hierarchically porous structures and great surface areas (Figures S1 and 3). The hierarchical pores including mesopores and macropores could serve as mass transfer channels for the HCHO adsorption as well as oxidation product desorption [12] . Moreover, the CSC in the RE‐MnO 2 /CSC remarkably improved the specific surface areas, which contributed to capturing the reactants on the catalyst surfaces and subsequently accelerating the heterogeneous thermocatalytic oxidation of formaldehyde (Table S1) [61]…”

Unveiling the mechanism of thermal catalytic oxidation of HCHO from the kiln exhaust gas using Sc-decorated Cr2CO2-MXenes

“…3 Among the various catalytic methods, thermal catalytic degradation of HCHO has been reported as an extremely efficient method in recent years. 4,5 Thermal catalytic oxidation relies on catalysts to oxidatively decompose HCHO by heating and supplying energy. 6 The reported thermal catalysts include noble metals (Pt, Ru 7,8 ) and non-noble metal oxides (TiO 2 , MnO 2 , and Fe 2 O 3 (refs.…”