Multi-level three-dimensional Mg–Al layered double hydroxide hierarchical microstructures with enhanced basic catalytic property

Correlation between the d-value and the M2+:M3+ cation ratio in Mg–Al–CO3 layered double hydroxides

“…These materials are a subject of great technological interest because of their catalytic (Liu et al, 2008;Tong et al, 2010;Xu et al, 2011;Yu et al, 2014;Fan et al, 2014), electrochemical (Indira et al, 1994;Jayashree and Kamath, 2002; and photochemical (He et al, 2004;El-Toni et al, 2006) properties, which have already found many applications in modern industry (Li and Duan, 2006). Moreover LDHs have found applications in pharmacology and biochemistry (Choy et al, 2001;Aisawa et al, 2001;Arco et al, 2004;Nalawade et al, 2009;Conterosito et al, 2013) and are considered as important materials for solution of the number of environmental and agricultural issues (Génin et al 2008(Génin et al , 2013(Génin et al , 2014aZümreoglu-Karan and Ay, 2012;Tiwari and Syvajarvi, 2014;Radha and Navrotsky, 2014;Manohara, 2014;Benício et al, 2015).…”

The role of soft colloidal templates in the shape evolution of flower-like MgAl-LDH hierarchical microstructures

“…These structural features make LDHs a promising candidate for a variety of applications such as catalysis, pollution control, and electrochemistry. 4 For example, the activity of LDH-based materials increases notably with an increase in the surface area, because a large surface area is associated with more catalytically active sites and in turn higher activity. 4 Similarly, in electrochemistry, a large specic surface area and abundant pore structure can expose a greater number of active points, which is advantageous for full contact between the electrolyte and the active substance, but also conducive to rapid electron transfer in the active material and the surface of the electrode.…”

“…4 For example, the activity of LDH-based materials increases notably with an increase in the surface area, because a large surface area is associated with more catalytically active sites and in turn higher activity. 4 Similarly, in electrochemistry, a large specic surface area and abundant pore structure can expose a greater number of active points, which is advantageous for full contact between the electrolyte and the active substance, but also conducive to rapid electron transfer in the active material and the surface of the electrode. 5,6 Recently, various methods including structural reconstruction, 7 in situ growth, 8 exfoliation and assembly, 9 and microwave irradiation, 10 have been developed and attempted to prepare hierarchically structured LDHs with various morphologies for a variety of practical applications.…”

Hierarchical PtIn/Mg(Al)O Derived from Reconstructed PtIn-hydrotalcite-like Compounds for Highly Efficient Propane Dehydrogenation

“…It can be seen that the XRD patterns of HT-F, HT-P and HT-M exhibit strong characteristic diffraction peaks in the HT phase [32], although their preparation processes are different. After calcination, followed by the impregnation of HT-FC, HT-PC and HT-MC with In 3+ ions, the characteristic diffraction peaks of the HT phase appear again in the XRD patterns of InHT-F, InHT-P and InHT-M, without other diffraction peaks.…”