Study of SWCNTs-Supported Pd and Pt Catalyst by K Filled
نویسندگان
چکیده
منابع مشابه
Investigation of Activity and Selectivity of n-Heptane by Reforming Pt-Ta Catalyst Supported on y-Alumina
The catalyst Pt-Ta supported on 7-alumina was prepared by impregnation with solution containing compoundsof II21K1.0. and Ta205 The Pt concentration was kept constant at 0.2 vet% while the concentration of thetantalum was 0,4 wt%. The activity and selectivity of catalyst were determined under conditions at 450-500 °Cand 15-30 atm.. with molar ratio H2/C[H,e5 and WH=1.5mL/h for converted n-hepta...
متن کاملEthylene hydrogenation on supported Ni, Pd and Pt nanoparticles: Catalyst activity, deactivation and the d-band model
Keywords: Model catalysis Nickel Palladium Platinum d-band Ethylene de-/hydrogenation a b s t r a c t Ethylene hydrogenation catalyzed at 300 K by 1–1.5 nm nanoparticles of Ni, Pd and Pt supported on MgO (1 0 0) with a narrow size-distribution, as well as the deactivation under reaction conditions at 400 K, was investigated with pulsed molecular beam experiments. Ni nanoparticles deactivate rea...
متن کاملTuning supported catalyst reactivity with dendrimer-templated Pt-Cu nanoparticles.
The effects of particle composition on heterogeneous catalysis were studied using dendrimer-encapsulated nanoparticles (DENs) as precursors to supported Pt-Cu catalysts. Bimetallic Pt-Cu DENs with varying Pt/Cu ratios were prepared in an anaerobic aqueous solution and deposited onto a high-purity commercial alumina support. The dendrimer template was then thermally removed to yield supported na...
متن کاملDimethyl ether combustion catalyzed by supported Pd, Rh, and Pt clusters: Site requirements and reaction pathways
Clusters of Pt and Pd catalyze dimethyl ether (DME) combustion to CO2 and H2O at 400–600 K without detectable formation of byproducts. Rh clusters are less active and also form CO, HCHO, and CH3OH in this temperature range. On Pd, isotopic and kinetic studies have shown that DME–O2 reactions proceed via redox cycles limited by hydrogen abstraction from chemisorbed DME molecules without the invo...
متن کاملNitrogen functionalized carbon nanostructures supported Pd and Au-Pd NPs as catalyst for alcohols oxidation
Two different carbon nanotubes (CNTs) PR24-PS and Baytubes were functionalized by oxidation with nitric acid and further amination with gaseous NH3. Thus Au and Au-Pd nanoparticles were prepared by PVA/NaBH4 system and anchored on the surface of pristine CNTs and NCNTs (Nitrogen functionalized carbon nanotubes). TEM analysis revealed that the introduction of nitrogen functionalities improves th...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Asian Journal of Chemistry
سال: 2013
ISSN: 0970-7077,0975-427X
DOI: 10.14233/ajchem.2013.14570