CeO 2 –MnO x /ZSM-5 sorbents for H 2 S removal at high temperature

Co3O4/g-C3N4 Hybrids for Gas-Phase Hg0 Removal at Low Temperature

“…The set of peaks between ~1109 and ~1745 cm −1 belong to the aromatic C-N stretch oscillation [32]; the weak bands at ~2143 cm −1 correspond to the cyano C≡N terminal groups [33]. The peaks at ~2352 cm −1 belong to the O=C=O asymmetrical stretch oscillation of the carbon dioxide adhered to the catalyst exterior [34]. The broad bands between 2927 and 3688 cm −1 relate to the N-H stretch oscillation of unpolymerized -NH2 functions and the O-H stretch oscillation of the H2O molecules adhered to the catalyst exterior [35].…”

Fabrication of SiO2@silicalite-1 and its use as a catalyst support

“…16 Panpranot et al used MCM-41 as the support to develop MCM-41-supported CoRu catalysts for CO hydrogenation, in which Co and Ru were well loaded on the pores of MCM-41 and showed high activity. 17 ZSM-5, a kind of crystalline microporous aluminosilicate with the MFI-type framework, has a strong and tunable acidity, excellent shape selectivity and good hydrothermal stability, leading to their wide use as sorbents, [18][19][20] catalysts, such as petrochemical processing for improving gasoline quality and producing important chemical materials. [21][22][23] The properties of ZSM-5 zeolite are great inuenced by the Al 2 O 3 /SiO 2 ratio and the morphology.…”

Fabrication and Fractality of Fe2O3-CeO2/ZSM-5 Composites for High-Temperature Desulfurization

“…The Fe2O3-based sorbents are prepared by using sol-gel approach which has been described in our previous paper [24,25]. Typically, stoichiometric amounts of ferric nitrate Fe(NO3)3·9H2O and cerous nitrate Ce(NO3)3·6H2O are dissolved in 25 mL of nitric acid (~2 mol/L).…”

“…After addition of citric acid with a mole amount of 1.5 times that of the total metal ions, H-ZSM-5 (the content of active components (CeO 2 + Fe 2 O 3 ) with respect to ZSM-5 is 50 wt. %, the Si/Al ratio of the pristine ZSM-5 is 31.65:1 [24], Tianjin, Catalyst Plant of Nankai University) is added to the solution. The mixtures are kept at 60 • C over a water bath until viscous gels form.…”