Total oxidation of ethanol over layered double hydroxide-related mixed oxide catalysts: Effect of cation composition

Recent Advances in the Catalytic Oxidation of Volatile Organic Compounds: A Review Based on Pollutant Sorts and Sources

“…624,625 The performance of such catalysts in this reaction can be further improved by doping these materials with additional co-precipitation from solutions of the corresponding metal nitrates. 626 Of the catalysts synthesized, a CuNiMnOx mixed oxide material was determined to be the most active and the ternary mixed oxide materials which contained Mn were determined to be the more active than the binary CuMnOx, CoMnOx, and NiMnOx catalysts (Fig. 14ii).…”

“…A series of M II −M III LDH precursor materials with M II -to-M III molar ratios of 2 (M II = Cu, Co, Ni, Cu-Ni, Cu-Co, and Co-Ni; M III = Mn or Al) were synthesized by their co-precipitation from solutions of the corresponding metal nitrates. 626 Of the catalysts synthesized, a CuNiMnO x mixed-oxide material was determined to be the most active, and the ternary mixed-oxide materials containing Mn were determined to be more active than the binary CuMnO x , CoMnO x , and NiMnO x catalysts (Figure 14ii). A separate study conducted by Aguilera et al 444 reported that a CoMnMgAlO x oxide catalyst exhibited a 90% ethanol conversion at 252 °C (flow rate of 200 mL•min −1 ), which provided a higher CO 2 yield than a corresponding catalyst containing Cu (CuMnMgAlO x oxide).…”

Recent advance on VOCs oxidation over layered double hydroxides derived mixed metal oxides

“…The mixed oxides normally present better performance than the individual oxide does for the cooperative effects, which induces changes in their structure and redox properties. Jiratova et al [52] analyzed the effect of the cation composition on ethanol oxidation derived from LDHs with M II = Cu, Co, Ni, CuNi, CuCo, CoNi, and M III = Mn or Al by the coprecipitation of nitrate solutions. The Mn-containing ternary mixed oxide catalysts are more active than the ternary Al-containing and the binary Cu-Mn, Co-Mn, and Ni-Mn catalysts are.…”

NOx Removal Performance Optimization of NiMnTi Mixed Oxide Catalysts by Tuning the Redox Capability

“…Layered double hydroxides (LDHs) are one type of multimetal clay materials with laminated structures. It can behave as absorbents, [26] supercapacitors, [27] catalysts [28,29] and catalyst precursors [30] due to the unique structure and outstanding physicochemical properties. During the past several years, the calcined LDHs have emerged and are increasingly being used to explore challenging issues in NH 3 -SCR in virtue of the stable sheet-like morphology, homogeneous distribution of metal oxide species and relatively high surface area.…”