Gamma aluminaSpinelCation vacanciesSurface reconstructionThe structure of γ-Al2O3, the most important catalyst support, is still under discussion; especially the positions of the Alcations and vacancies are debated. One model proposes that γ-Al2O3 consists of irregularly stacked nanocrystals with ...
Anderson-type heteropolyoxomolybdates in catalysis:: 2. EXAFS study on [gamma]-Al2O3-supported Mo, Co and Ni sulfided phases as HDS catalysts The nature of the Co (or Ni) and Mo sulfided species obtained starting from 纬-Al 2O 3-supported Anderson heteropolyoxomolybdates (CoMo 6 and ...
摘要: The density increased with La2O3additional concentrations.The radiation shielding studies showed improved behavior with La2O3additives.The HVL values of the glass samples are comparatively lower than the HVL of some standard ionizing radiation shielding materials.关键词:...
We present a Density Functional Theory (DFT) study of the adsorption of small organic molecules, taken as models of biodiesel autoxidation products, on stainless steel and aluminum surfaces. The anhydrous and fully wetted (0001) α-Al2O
We have investigated the structure of epitaxial layers of A-type and B-type NiSi2 on Si(111) with x-ray standing waves. Several samples of each type were used for the measurements with thicknesses of the silicides ranging from 6.3 to 97... J.,Zegenhagen,K.-G.,... - 《Physical Rev...
PdIn/Al2O3 Intermetallic Catalyst: Structure and Catalytic Characteristics in Selective Hydrogenation of Acetylene The structure and catalytic characteristics of a bimetallic catalyst containing Pd1In1 nanoparticles deposited on the surface of gamma-Al2O3 were studied. ... Markov, P., VBukhtiyarov,...
and Applications of Graphene on γ-Al2O3 catalysts Jaehyun Park1, Joohwi Lee2, Jung-Hae Choi2, Do Kyung Hwang1 & Yong-Won Song1 The possibilities offered by catalytic γ-Al2O3 substrates are explored, and the mechanism governing graphene formation thereon is elucidated using ...
Structure–property correlations in the SiO2–PbO–Bi2O3 glasses 2O glasses having the composition of 35SiO–PbO–(65)BiO (where =5, 10, 15, 20, 25, 35, 45; in mol%) have been prepared using the conventional melting and ... SM Abo-Naf,RL Elwan,MA Marzouk - 《Journal of Material...
High quality ZnO films have been successfully grown on a Si (100) substrate by metal organic chemical vapour deposition with a gamma-Al2O3 buffer. The crystal structure, surface morphology and optical properties of the ZnO films were characterized by x-ray diffraction, Raman spectroscopy, atomic...
(a) Detail of the TEM image of the oxide shell where a crystalline structure can be seen. (b) XRD analysis of the sample after exposure to high temperature (280 °C, 3 h). Full size image Nanoencapsulation stability after thermal cycling and maximum working temperature The phase-change...