CeO2-, ZrO2-, and La2O3-supported Rh-Pt catalysts were tested to assess their ability to catalyze the steam reforming of ethanol (SRE) for H2 production. SRE activity tests were performed using EtOH:H2O:N2 (molar ratio 1:3:51) at a gaseous space velocity of 70,600 h−1 between 400 and 700 °C at atmospheric pressure. The SRE stability of the catalysts was tested at 700 °C for 27 h time on stream ...

The optimal process parameters of ultrasonic-assisted processing were studied to further improve the molding quality and mechanical properties Ni60/WC-TiO2+La2O3 composite coating. A single-factor experiment was used explore influences ultrasonic vibration frequencies on microstructure, elemental composition, phase hardness, wear resistance coating using scanning electron microscopy (SEM), an X...

In the present work, an approach of freeze-dry pulsated orifice ejection method (FD-POEM) was utilized to fabricate monodispersed MoSiBTiC-La2O3 composite powders for laser powder bed fusion (L-PBF). The FD-POEM were spherically shaped, possessing a narrow size range and uniform element distribution. As revealed by single-track single-layer experiments, porous particles sufficiently fused under...

xLa2O3-(100 - x)Ga2O3 binary glasses were synthesized by an aerodynamic levitation technique. The glass-forming region was found to be 20 ≤ x ≤ 57. The refractive indices were greater than 1.92 and increased linearly with increasing x. The polarizabilities of oxide ions were estimated to be 2.16-2.41 Å3, indicating that the glasses were highly ionic. The glasses were transparent over a very wid...

Metal–insulator–metal (MIM) capacitors have been fabricated using high-κ La2O3\HfO2 dielectric stacks deposited using Dense Plasma Focus (DPF) and were subsequently studied. DPF is a unique machine used for the very first time to fabricate dielectric stacks within a MIM structure as it can be used both to deposit nano-size thin film as well as can also be used to change the properties of the po...

Known as having a stress self-accommodation characteristic, the laser cladding shape memory alloy (SMA) coatings have been widely used in material failure repair. Nevertheless, their further development is greatly limited by low microhardness (250 HV0.2) and corrosion resistance. Benefiting from capability of refined grain adjusted microstructure, rare earth oxides play key role improving prope...

Lanthanum oxide (La2O3) nanoparticles are widely applied in various fields and have the potential to be made on a fabrication scope. As consequence, feasibility studies for generating industries La2O3 production required, particularly developing countries. The purpose of this research was evaluate investigate prospect nanoparticles. This study carried out determine whether large-scale using sol...