Importance of Size and Distribution of Ni Nanoparticles for the Hydrodeoxygenation of Microalgae Oil

Improved synthetic approaches for preparing small-sized Ni nanoparticles (d=3nm) supported on HBEA zeolite have been explored and compared with the traditional impregnation method. The formation of surface nickel silicate/aluminate involved in the two precipitation processes are inferred to lead to the stronger interaction between the metal and the support. The lower BrOnsted acid concentrations of these two Ni/HBEA catalysts compared with the parent zeolite caused by the partial exchange of BrOnsted acid sites by Ni2+ cations do not influence the hydrodeoxygenation rates, but alter the product selectivity. Higher initial rates and higher stability have been achieved with these optimized catalysts for the hydrodeoxygenation of stearic acid and microalgae oil. Small metal particles facilitate high initial catalytic activity in the fresh sample and size uniformity ensures high catalyst stability.     «

Improved synthetic approaches for preparing small-sized Ni nanoparticles (d=3nm) supported on HBEA zeolite have been explored and compared with the traditional impregnation method. The formation of surface nickel silicate/aluminate involved in the two precipitation processes are inferred to lead to the stronger interaction between the metal and the support. The lower BrOnsted acid concentrations of these two Ni/HBEA catalysts compared with the parent zeolite caused by the partial exchange of BrO...     »

ISI Document Delivery No.: 182TD Times Cited: 1 Cited Reference Count: 55 Song, Wenji Zhao, Chen Lercher, Johannes A. graduate school (Faculty Graduate Center of Chemistry) of the Technische Universitat Munchen; Elitenetzwerk Bayern (graduate school NanoCat); EADS Algenflugkraft project W.S. gratefully acknowledges support from the graduate school (Faculty Graduate Center of Chemistry) of the Technische Universitat Munchen and the Elitenetzwerk Bayern (graduate school NanoCat). We also appreciate the financial support from the EADS Algenflugkraft project. 1 Wiley-v c h verlag gmbh Weinheim     «

ISI Document Delivery No.: 182TD Times Cited: 1 Cited Reference Count: 55 Song, Wenji Zhao, Chen Lercher, Johannes A. graduate school (Faculty Graduate Center of Chemistry) of the Technische Universitat Munchen; Elitenetzwerk Bayern (graduate school NanoCat); EADS Algenflugkraft project W.S. gratefully acknowledges support from the graduate school (Faculty Graduate Center of Chemistry) of the Technische Universitat Munchen and the Elitenetzwerk Bayern (graduate school NanoCat). We also appreci...     »