کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
62895 47662 2007 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Spherical polyelectrolyte brushes as carriers for platinum nanoparticles in heterogeneous hydrogenation reactions
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی کاتالیزور
پیش نمایش صفحه اول مقاله
Spherical polyelectrolyte brushes as carriers for platinum nanoparticles in heterogeneous hydrogenation reactions
چکیده انگلیسی

Platinum nanoparticles generated on the surface of spherical polyelectrolyte brush particles were investigated with regard to their catalytic behavior in hydrogenation reactions. No surface-active agent was needed to stabilize the platinum particles. Transmission electron microscopy demonstrated that the Pt nanoparticles are well defined with a diameter of approximately 2 nm. The catalytic activity of the immobilized Pt particles, as well as the colloidal stability of the carrier particles, were preserved over many runs. These data demonstrate that the generation and immobilization of bare metallic nanoparticles on spherical polyelectrolyte brushes generate a very robust, water-based catalyst system. Pseudo-first-order kinetics with respect to the aldehyde were observed.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Catalysis - Volume 246, Issue 1, 15 February 2007, Pages 10–14
نویسندگان
, , , , , , ,