Synthesis, characterization and photochemistry of a new heptamolybdate supported magnesium-aqua coordination complex
作者:SAVITA S. KHANDOLKAR、PALLEPOGU RAGHAVAIAH、BIKSHANDARKOIL R SRINIVASAN
DOI:10.1007/s12039-015-0918-7
日期:2015.9
The synthesis, crystal structure, redox characteristics and photochemistry of a new heptamolybdate supported magnesium-aqua coordination complex viz. (hmtH)2[Mg(H2O)5}2Mo7O24}] ⋅3H2O 1 (hmt = hexamethylenetetramine) is reported. The cyclic voltammogram reveals quasireversible redox behaviour while the degradation of rhodamine B (RhB) by 1 under sunlight irradiation indicates its photocatalytic activity
studied for hydrogen transfer of biomass-derived carboxides and exhibited excellent catalytic properties at lowtemperatures, especially for the conversion of furfural (FUR) to furfuryl alcohol (FFA). With the catalyst, the reduction reaction of FUR was efficiently performed at lowtemperatures (below 100 °C) and an FFA yield of 98.66% was obtained even at room temperature. When the temperature reached
Catalysts based on gold nanoclusters supported by different materials have been used for the selective semihydrogenation of phenylacetylene to styrene. The most activespecies were formed by catalyst thermal activation in a reductive atmosphere. It is shown that the activity and selectivity of these catalysts is mainly controlled by the interaction of the gold nanoclusters with the support, as demonstrated
基于由不同材料支撑的金纳米团簇的催化剂已被用于苯乙炔选择性半氢化为苯乙烯。最活跃的物种是通过在还原气氛中的催化剂热活化形成的。结果表明,这些催化剂的活性和选择性主要由金纳米团簇与载体的相互作用控制,如使用具有高表面积和不同酸碱度的材料,即 MgO、Al 2 O 3所证明的那样。和 Mg/Al 水滑石。载体的酸碱性质对选择性有重要影响。负载在碱性材料(MgO 和水滑石)上的金获得了更高的活性,并且负载在 MgAl 水滑石上的 Au 催化剂获得了最好的结果,表现出高活性和对烯烃的最佳选择性。这可以通过支持H 2的异裂裂解同时避免炔烃过度还原为烷烃的中间碱度来解释。
Growth of cubic anhydrous magnesium carbonate single crystal in deep eutectic solvent
作者:Na Li、Zhidong Chang、Yifei Zhan、Hui Dang、Nayab Ali Khan、Wenjun Li、Hualei Zhou、Changyan Sun
DOI:10.1016/j.jssc.2020.121684
日期:2020.12
This strategy of preparing anhydrous MgCO3 (AMC) using the solid source was introduced in this paper. The binary deep eutectic solvent containing MgCl2·6H2O and urea was prepared by simple grind at the room temperature. Subsequently, the prepared deep eutectic solvent of MgCl2·6H2O/urea was used as precursor to synthesize AMC by solvothermal synthesis. The singlecrystal of layered spiral-type AMC