Insight into the H2S selective catalytic oxidation performance on well-mixed Ce-containing rare earth catalysts derived from MgAlCe layered double hydroxides

One‐Step MOF‐Templated Strategy to Fabrication of Ce‐Doped ZnIn2S4 Tetrakaidecahedron Hollow Nanocages as an Efficient Photocatalyst for Hydrogen Evolution

“…The introduction of Ce 3+ may result from the partial reduction of Ce 4+ by H 2 S, which is generated by the hydrolysis of TAA. [ 42 ] In the high‐resolution XPS spectrum of Zn 2p of ZTNs‐Ce20, the peaks located at 1044.8 and 1021.8 eV are assigned to Zn 2p 1/2 and Zn 2p 3/2 (Figure 4d ), which indicates the Zn (II) oxidation state of ZTNs‐Ce20. The In 3d high‐resolution XPS spectrum shows two peaks at 444.8 eV (In 3d 5/2 ) and 452.4 eV (In 3d 3/2 ) (Figure 4e ), corresponding to the In cation with a valence of +3.…”

Morphology evolution of acetic acid-modulated MIL-53(Fe) for efficient selective oxidation of H2S

“…Hydrogen sulfide (H2S), originating from industrial processes such as coal gasification and oil refining, is one of the most malodorous and toxic gases [1][2][3]. The gas is not only corrosive to metals pipelines, but also hazardous to health and harmful to the environment [4,5]. It is hence imperative to control the emission of H2S.…”

Synthesis and thermal behavior of Co/AlCe layered double hydroxide

“…The large ionic radius as well as easy oxidizability of cerium (III) cations makes this objective quite difficult. Zhang et al reported obtaining Mg/AlCe samples with Ce/(Ce + Al) = 28.6, 37.5, 44.5 and 50 mol% [14]. Another Mg/AlCe LDH with Ce/(Ce + Al) ratio about 50 mol% was synthesized by Rodrigues et al [15].…”

“…A number of publications have shown that the introduction of cerium in the composition of the LDH makes it possible to obtain materials with improved properties. So, Zhang et al reported that the mixed oxides derived by calcination of synthesized LDH precursors demonstrate a higher activity at low temperatures in the reaction of H 2 S selective catalytic oxidation than pure CeO 2 [14]. A study of Zhu et al showed that in comparison with undoped sample, the materials obtained from the LDH of the cerium doped precursor exhibit higher catalytic activity in the photodegradation of rhodamine B [16].…”