Noblemetal clusters (Pt, Pd, Rh, Ir, Re, and Ag) are selectively encapsulatedwithin LTA voids via hydrothermal synthesis usingmetal precursorswith ligands (NH3 for Pt and Ir; ethylenediamine for Pd, Rh, Re andAg) that prevent their premature precipitation as colloidal oxyhydroxides. Such stability appears to be necessary and sufficient for successful encapsulation of cationic precursors during ...

In modern condensers of air conditioning systems, heat pumps, evaporators seawater desalination and heaters power plants, the process vapour condensation is carried out mainly inside horizontal tubes channels. Heat transfer processes occurring in have a significant effect on overall energy efficiency mentioned systems. this paper, experimental investigation during freons R22, R406a, R407c plain...

We report here a general synthetic strategy to encapsulate metal clusters within zeolites during their hydrothermal crystallization. Precursors to metal clusters are stabilized against their premature colloidal precipitation as hydroxides during zeolite crystallization using bifunctional (3-mercaptopropyl)trimethoxysilane ligands. Mercapto (-SH) groups in these ligands interact with cationic me...

Acetone is an important solvent and widely used in the synthesis of drugs and polymers. Currently, acetone is mainly generated by the Cumene Process, which employs benzene and propylene as fossil raw materials. Phenol is a co-product of this synthesis. However, this ketone can be generated from ethanol (a renewable feedstock) in one-step. The aim of this work is to describe the influence of phy...