Natural gas is a suitable alternative to gasoline and diesel fuels decrease the carbon footprint of mobility energy sectors. Unburnt CH4 typically removed from exhaust using palladium-based catalysts, which suffer thermal deactivation as well water sulfur poisoning. In this work, activity Pd/Al2O3 in wet lean oxidation was enhanced by applying repeated short reducing pulses (SRP) leading signif...

The non-sulfided Ni-PTA/Al2O3 catalyst was developed to produce green diesel from the hydroprocessing of Jatropha oil. The Ni-PTA/Al2O3 catalyst was prepared by one-pot synthesis of Ni/Al2O3 with the co-precipitation method and then impregnanting Ni/Al2O3 with PTA solution. The catalysts were characterized with BET, SEM-EDX, TEM, XRD, XPS, TGA and NH3-TPD. The Ni and W species of the Ni-PTA/Al2...

The ability to study in situ the formation and consumption of Pd hydrides (PdH) liquid environments is a significant challenge hampering deeper understanding catalyzed liquid-phase hydrogenation reactions. Here, using quick scanning X-ray absorption spectroscopy (QEXAFS), we present detailed kinetic hydride reactivity on Pd/Al2O3 2-propanol solvent. By calibrating changes QEXAFS spectra with te...

Nb-B-Al-O nanocomposite films with different power of Al2O3 were successfully deposited on the Si substrate via multi-target magnetron co-sputtering method. The influences of Al2O3's content on structure and properties of obtained nanocomposite films through controlling Al2O3's power were investigated. Increasing the power of Al2O3 can influence the bombarding energy and cause the momentum tran...

The glycerol hydrogenolysis to produce 1,2-propanediol without using externally supplied hydrogen was investigated methanol present in crude provide situ via its steam reforming reaction. This paper focuses on the promoting effect of Pd reactivity a Cu/Zn/Al2O3 catalyst. Adding 2 wt% onto Cu/ZnO/Al2O3 catalyst significantly improved selectivity from 63.0% 82.4% and conversion 70.2% 99.4%. enhan...

The promoting effect of Pd on a Cu/ZnO/Al2O3 catalyst for the aqueous glycerol hydrogenolysis process to produce 1,2-propanediol was studied. At lower hydrogen pressure (2.07 MPa), using with 2 wt% doped, could significantly improve conversion (97.2%) and selectivity (93.3%) compared unpromoted (69.4% 89.7%, respectively). A power-law kinetic model, which took into account all elementary reacti...

ALD high-κ dielectrics and TiN metal-gate were successfully incorporated in both Si and Si0.7Ge0.3 surface-channel pMOSFETs. The high-κ gate dielectrics used included Al2O3 /HfAlOx /Al2O3, Al2O3 /HfO2 /Al2O3 and Al2O3. The Si transistors with Al2O3 /HfAlOx /Al2O3 showed a sub-threshold slope of 75 mV/dec. and a density of interface states of 3×10 cmeV. No obvious degradation of the Si channel h...

We have demonstrated a flexible resistive random access memory unit with trilayer structure by atomic layer deposition (ALD). The device unit is composed of Al2O3/HfO2/Al2O3-based functional stacks on TiN-coated Si substrate. The cross-sectional HRTEM image and XPS depth profile of Al2O3/HfO2/Al2O3 on TiN-coated Si confirm the existence of interfacial layers between trilayer structures of Al2O3...