Benner
حازم عبدالرزاق الزبيدي ( مدرس )
كلية
[email protected]
07713858804
 
 
 
Facile design of bimetallic nanoparticles for biomass conversion
تحميل
بحث النوع:
علوم التخصص العام:
Hazim Al-Zubaidi اسم الناشر:
Sherine O Obare اسماء المساعدين:
251st ACS National Meeting & Exposition الجهة الناشرة:
American Chemical Society  
2016 سنة النشر:

الخلاصة

We report the aq. phase catalytic hydrogenation pyruvic acid, acetone, nitrobenzene, Alanine and 6-bromo-1-hexene using three immobilized nanoparticles: Ru NPs, Pd NPs and Pd/Ru bimetallic NPs. Triruthenium dodecacarbonyl and palladium acetate were used as precursors for ruthenium nanoparticles Ru (NPs) and palladium nanoparticles Pd (NPs) resp. Pd/Ru bimetallic nanoparticles was stabilized using n-dodecyl sulfide, and synthesized by pyrolysis method. Ru NPs, Pd NPs and Pd/Ru bimetallic NPs were immobilized on silica (SiO2). The nanoparticles were characterized using Scanning Electron microscope (SEM), transmission electron microscope (TEM) and X-ray diffraction (XRD). All reactions were conducted at 328K and approx. 5 MPa of hydrogen gas pressure, with 0.10 g catalyst in 30 mL of substrate (20 mM pyruvic acid in water). Pd and Ru monometallic nanoparticles showed low to moderate catalytic activity. In spite of the low catalyst-SiO2 loading, about 99% of all target compds. were converted to the desired product when Pd/Ru bimetallic nanoparticles was used within 24 h.