نتایج جستجو برای: impregnation reduction method
تعداد نتایج: 2051733 فیلتر نتایج به سال:
Highly ordered mesoporous Cr(2)O(3) materials with high specific surface area and narrow pore size distribution were successfully prepared by a vacuum assisted impregnation method. Both 2-dimensional hexagonal and 3-dimensional cubic Cr(2)O(3) mesoporous replicas from SBA-15 and KIT-6 templates exhibit enhanced performance for gas sensors and lithium ion batteries, compared to the bulk Cr(2)O(3...
Methods The Biogard√ paper substrate was treated by impregnation with patented harmless active compounds. Antibacterial activity against Eschericha coli and Staphylococcus aureus was determined using ISO 20743 (transfer method) standard, antifungal activity using AATCC 30 (part III) against Aspergillus niger and antiviral activity using EN 1447666+A1 standard against H1H1 influenza A virus. Bio...
Two novel hydrodesulfurization (HDS) catalysts: FeN4/C and FeN2/C, were prepared using an impregnation-pyrolysis method. The two materials were investigated as catalysts for hydrodesulfurization (HDS) and hydrodearomitization (HDA) of model compounds. The turnover frequency of the two FeN catalysts is comparable to (FeN4/C) or even higher (FeN2/C) than that of MoNi/Al2O3. The FeN4/C catalyst al...
Egg-shell, egg-yolk and egg-white types of Co/SiO2 catalysts were prepared by utilizing entrapped air to inhibit the entrance of impregnation or leaching solution into the cores of catalyst pellets during the preparation procedure; the entrapped air played the important role because the capillary pressure was reduced to a suitable range by adjusting the concentration of ethanol in the impregnat...
In her article "Genocidal Rape, Enforced Impregnation, and the Discourse of Serbian National Identity" Tatjana Takševa analyzes two main processes which contributed to the systematic rape and enforced impregnation of Bosniak women during the Balkan conflict: the discourse of Serbian nationalism articulated in response to the sexual violence that took place in Kosovo preceding the war and the si...
Nanocrystallized ceria-based coatings were prepared on TA6V titanium alloy by using a three-step procedure: substrate pretreatment, electrochemical impregnation and final heat treatment. UV–vis and Raman in situ spectroscopies performed at the substrate interface during the electrochemical impregnation, showed experimentally for the first time that the interfacial deposit is made up of cerium h...
In order to enhance bioactive functionalities of ginseng, an acid impregnation processing was applied as a pre-treatment in producing red ginseng. Acid impregnation studies were conducted, and acids (ascorbic, malic, and citric acid) were selected. The optimal concentration of each acid was investigated in this study in terms of ginsenoside contents. The most concerned ginsenoside, Rg3 was incr...
Two-dimensional porous nanosheet heterostructure materials, which combine the advantages of both architecture and components, are expected to feature a significant photocatalytic performance toward CO2 conversion into useful fuels. Herein, we provide facile strategy for fabricating sulfur-doped C3N4 nanosheets with embedded SnO2-SnS2 nanojunctions (S-C3N4/SnO2-SnS2) via liquid impregnation-pyro...
Abstract Mn-WO 3 /TiO 2 catalysts were investigated for Selective Catalytic Reduction (SCR) of NO with NH . The synthesized by wetness impregnation method different Mn loadings (1.5-3-12 wt%) on 8wt%WO All three compared and bare MnO x oxide, used as references. 1.5wt%Mn-8wt%WO exhibited the highest performance in conversion N selectivity. A commercial catalyst, based titania supported vanadia ...
Statistical analysis of non-normal data is usually more complicated than that for normaldistribution. In this paper, a simple root/power transformation technique developed by Niaki, et al [1]is extended to transform right and left skewed distributions to nearly normal. The value of theroot/power is explored such that the skewness of the transformed data becomes almost zero with anacceptable err...
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