The phase diagrams of the CH 3 CH 2 OH + Cs 2 SO 4 + H 2 O system were determined at (10, 30, and 50) °C. The binodal curves were given using a five-parameter equation. The tie lines were correlated by the Othmer-Tobias and Bancroft equations. Samples of the solid phase analyzed by thermogravimetric analysis showed that it was the anhydrous salt.

The development of efficient catalysts with high activity and selectivity for the direct synthesis of H 2 O 2 from H 2 and O 2 is highly desirable yet challenging. Herein, a series of Pd−Sn bimetallic nanocrystals with hollow structure have been successfully created as highly active and selective catalysts for direct H 2 O 2 synthesis. We found that the introduction of Sn played an important role on the morphology evolution and composition control of the hollow Pd−Sn nanocrystals. Significantly, after rapid thermal treatment, the obtained hollow Pd−Sn/TiO 2 catalysts can deliver complete inhibition of H 2 O 2 decomposition/hydrogenation, resulting in a large activity enhancement for the H 2 O 2 production. The H 2 selectivity could be further improved by using water as the reaction solvent. Further investigation showed that the large activity enhancement of hollow Pd−Sn/TiO 2 catalysts for the direct H 2 O 2 synthesis can be attributed to the presence of PdO, the ensemble effect between the Pd and Sn, and the interface effect of Pd/SnO x and PdO/SnO x .

A porous MOF platform (SNNU-65s) formed by creatively combining paddle-wheel-like [Cu(COO)] and trigonal prismatic [M(μ-O)(COO)] building blocks was designed herein. The mixed and high-density open metal sites and the OH-functionalized pore surface promote SNNU-65s to exhibit ultra-high CH uptake and separation performance. Impressively, SNNU-65-Cu-Ga stands out for the highest CH/CO (18.7) and CH/CH (120.6) selectivity among all the reported MOFs at room temperature.

The phase diagram was determined for the PEG + Cs2SO4 + H2O system at 25 °C using PEG (poly(ethylene glycol)) with a molecular weight of 4000. Compositions of the liquid−liquid and the liquid−liquid−solid equilibrium were determined using calibration curves for the index of refraction of the solutions; atomic absorption (AA) and TG analyses were made on the solids. The solid phase in equilibrium with the biphasic region was Cs2SO4. The binodal curves were correlated using a four-parameter equation. Tie lines were satisfactorily described using the Othmer−Tobias and Bancroft equations. The effects of temperature (25 °C, 35 °C and 45 °C) and molecular weight of the PEG (1000, 4000, and 10 000) on the binadol curve were also investigated. It was observed that the effect of the temperature was insignificant within the investigated range and an increase in the molecular weight of the PEG produced a displacement of the binodal curve toward the origin.