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The aim of this investigation is recycling, reusability and stability of the KCC-1 as a suport's catalyst. KCC-1 and its functionalized derivatives of aminopropyltriethoxysilane and tripolyphosphate (ATPP) have been synthesized, and applied to one-pot synthesis of 3-Acyloxylindolines for first time from 2-aminostyrene with carboxylic acid. [ABSTRACT FROM AUTHOR]

Novel nano catalyst systems comprised of PbS nanoparticles immobilized into the nanospaces of ionic liquid (IL)-based KCC-1 (KCC-1/IL/PbS) have been described for the dehydrogenation of aqueous solutions of HCOOH/HCOONa to H 2 and CO 2 gas due to not only the unique dendritic fibrous morphology of the support, which made the active sites accessible, but also the synergistic effect between KCC-1/IL and the small PbS NPs. KCC-1 with high surface area was functionalized with ionic liquid (IL) acting as the robust anchors so that the nanoparticles were well-dispersed on the fibers of the KCC-1 microspheres, without aggregation. Because of the amplification effect of IL, high loading capacities of the nanocatalysts were achieved. The synthesized KCC-1/IL/PbS nanocatalyst exhibited excellent catalytic activity in dehydrogenation of aqueous solutions of HCOOH/HCOONa to H 2 and CO 2 under mild conditions to the easy accessibility of the active sites. [ABSTRACT FROM AUTHOR]

Abstract Inspired by the high accessibility and low diffusion limitations of fibrous silica nanoparticles (KCC‐1), fibrous phosphosilicate (FPS) was engineered using a microemulsion system. In this work, we report design and synthesis of high-surface-area FPS using tripolyphosphate (TPP) and tetraethyl orthosilicate (TEOS). The FPS nanocatalyst was thoroughly characterized by Fourier transform infrared spectra (FTIR), Powder X-ray diffraction (XRD), Field emission scanning electron microscopy (FESEM), Transmission electron microscopy (TEM), Energy dispersive X-ray spectroscopy (EDX), and N 2 adsorption/desorption study. Considering the large ionic internal character, high mechanical and thermal stability as well as long-term colloidal stability, this system could be considered as perfect nanocatalyst by using the host–guest approach. Then palladium nanoparticles (Pd NPs) supported on fibrous phosphosilicat to the cycloaddition of CO 2 to epoxides. Graphical abstract Image 1 Highlights • A new family of high surface area phosphosilicat nanosheet (FPS) with fibrous morphology was prepared. • Palladium nanoparticles (Pd NPs) supported on fibrous phosphosilicat. • FPS was characterized and employed as nanocatalyst to the cycloaddition of CO 2 to epoxides. • This system could be considered as perfect nanocatalyst by using the host–guest approach. [ABSTRACT FROM AUTHOR]