ChemInform Abstract: Catalysis by Metal Colloids: Trajectories for Atom Assembling in Pd and Pt Colloids

Abstract

Catalysis by Metal Colloids: Trajectories for Atom Assembling in Pd and Pt Colloids -[77 refs.]. -(VARGAFTIK, M. N.; KOZITSYNA, N. YU.; CHERKASHINA, N. V.; RUDYI, R. I.; KOCHUBEI, D. I.; NOV-GORODOV, B. N.; MOISEEV, I. I.; Kinet.

Environmentally Friendly Synthesis of γ-Valerolactone by Direct Catalytic Conversion of Renewable Sources

“…Homogeneous Catalysts. Several homogeneous or quasi-homogeneous catalysts, 42 namely, molecular metal complexes and colloidal metal nanoparticles (MNP), have been used to convert LA substrate into GVL. Recent data are summarized in Table 1, in which catalyst lifetime and activity are reported as turnover number (TON) and turnover frequency (TOF), respectively.…”

Stability and thermal evolution of transition metal and silicon clusters

“…Ð chemical thermal decomposition of metal salts, 6 organometallic synthesis from a solution with stabilizing ligands; 48 Ð mechanochemical synthesis by long-term (up to 300 h) grinding in ball and planetary mills of powders of pure metals or refractory compounds Ð metal borides, carbides and nitrides (e.g., 7 ± 10 nm Ti 44 C 56 nanoclusters are prepared by mechanochemical activation over a period of *150 h); 49 Ð electric explosion and detonation synthesis. 4 The regular close-packed clusters of pure metals (for example, Au 55 , Ni 147, Pt 309 and Pd 561 ) are highly reactive; upon the reactions, they form new structures.…”