Nanoparticulate Catalysts Formed via Microgel Templating

8 Pd/Ab03 modified with Zn acetate, pyridine and alkali 0.5 1.7 97-98 (100) 

Reaction conditions 70°C, 960 shakings min 1 (regime without diffusion limitations), IPrOH (30mL), C 0.43molr, Q 1.4xl0-=mol PdL .  

NCM-[A1] and C-Pd-NCM-[A1] catalysts is the same (according to Al NMR data), the support influence should also be similar. The higher activity of C-Pd-NCM-[A1] can be explained by a lower fraction of the large particles and a lower Pd content compared to A-Pd-NCM-[A1], The latter factor allows one to avoid shielding the particle surface by other particles located in its vicinity. When a shorter substrate 

On the other hand, in the hydrogenation of DMEC and DHL these catalysts are much less active and selective than PS-l)-P4VP-Pd or PEO-h-P2VP-Pd. The lower activity may be due to the formation of comparatively large particles (compare 2nm nanoparticles in block copolymer-based catalysts and the nanoparticles formed in microgel-templated catalysts). The lower selectivity can be caused by the absence of modifying groups on the nanoparticle surface. 

3 Nanoparticulate Catalysts Formed in Highly-flinctionalized Polymer Colloids 

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