A new sulfate oxide solid acid catalyst SO42-/SnO2-Hangjin2# clay was compounded with Hangjin2#clay, activated by sulfuric acid, as a carrier. In the catalysis of Xanthoceras sorbifolium Bunge, using yield oil and methanol synthesis biodiesel an index, effect SO42-/SnO2–Hangjin2#clay preparation conditions on activity were investigated. The variables included in optimization process concentrati...

Superacids, defined as acids with a Hammett acidity function H0 ≤ -12, are useful materials, but a need exists for new, designable solid state systems. Here, we report superacidity in a sulfated metal-organic framework (MOF) obtained by treating the microcrystalline form of MOF-808 [MOF-808-P: Zr6O5(OH)3(BTC)2(HCOO)5(H2O)2, BTC = 1,3,5-benzenetricarboxylate] with aqueous sulfuric acid to genera...

The synthesis of tris(ortho-carboranyl)borane (BoCb3), a single site neutral Lewis superacid, in one pot from commercially available materials is achieved. high fluoride ion affinity (FIA) confirms its classification as superacid and the Gutmann-Beckett method well adducts with bases indicate stronger acidity over widely used fluorinated aryl boranes. electron withdrawing effect ortho-carborane...

Superacid ternary ZrO2 SiO2 SnO2 oxide has been synthesized by the sol-gel method with a different atomic ratio Zr:Si:Sn. The highest strength of acid sites observed in ranges 20 ≤ Zr4+ 29, 60 Si4+ 67, 11 Sn4+ at.%. According to XPS spectra and 119Sn, 29Si MAS NMR partial shift electron density from zirconium silicon ions was resulting formation superacid Lewis sites. It shown that Zr29Si60Sn11...

Sulfated-zirconia superacid enhances the performance of lithium-metal battery markedly by increasing lithium-ion transference number and modifying interfacial composition.

An anion-doped aluminium chlorofluoride AlCl0.1F2.8(OTeF5)0.1 (ACF-teflate) was synthesized. The material contains pentafluoroorthotellurate (teflate) groups, which mimic fluoride ions electronically, but are sterically more demanding. They embedded into the amorphous structure. latter studied by PDF analysis, EXAFS data and MAS NMR spectroscopy. mesoporous powder is a Lewis superacid, ATR-IR s...

Aromatic polymers containing perfluorosulfonic acid groups show well-developed and interconnected ionic clusters, and thus high proton conductivity at wide humidity range.