نتایج جستجو برای: pechini method
تعداد نتایج: 1630137 فیلتر نتایج به سال:
Differential thermal analysis (DTA) and electrical conductivity calculated from AC impedance measurements are discussed for binary ternary eutectics: (Li 0.52 Na 0.48 ) 2 CO 3 (LN) 0.435 0.315 K 0.25 (LNK), coexisting with nanosized CeO ceria-based oxides such as :Sm 3+ (samarium doped ceria: SDC) particles prepared by the Pechini method. The influence of surface properties smooth surfaces, nar...
all analytical methods are generally based on the measurement of a parameter or parameters which are somehow related to the concentration of the species.an ideal analytical method is one in which the concentration of a species can be measured to a high degree precision and accuracy and with a high sensitivity. unfortunately finding such a method is very difficult or sometimes even impossible.in...
for several years, researchers in familiarity of efl teachers with post-method and its role in second and foreign language learners’ productions have pointed out that the opportunity to plan for a task generally develops language learners’ development (ellis, 2005). it is important to mention that the critical varies in language teaching was shown is the disappearances of the concept of method ...
Here, we combine CO2 laser heating and an ionic liquid solvent (i.e., methylimidazolium hydrogensulfate HMIM+ HSO4–) as innovative route to produce Ti/Ru0.3Ti0.7O2 anodes. For comparison purposes, the anodes were also prepared using conventional thermal treatment (in a furnace), by standard polymeric precursor method (also known Pechini method). heating, heated at power density of 0.4 W mm?2 up...
in the area of vocabulary teaching and learning although much research has been done, only some of it has led to effective techniques of vocabulary teaching and many language learners still have problem learning vocabulary. the urge behind this study was to investigate three methods of teaching words. the first one was teaching words in context based on a traditional method of teaching that is,...
study of catalytic performance of lamno3 and lamno3-zsm-5 nanocatalysts toward 2-propanol conversion
lamno3 and lamno3/zsm-5 nano catalysts were synthesized by pechini method and their physical-chemical properties were characterized using xrd, ftir, sem-edx, uv-vis drs, bet surface area and tpr. the correlation between characteristic properties and activity of catalysts were investigated. the catalytic performance of the catalysts was evaluated in combustion of 2-propanol and compared with 1% ...
The steam reforming of methane (SRM) reaction is a significant process for efficient syngas generation and promising distributed hydrogen production. In this work, series LaNiO3 oxides were prepared using the Pechini method, calcined from 600 °C to 900 tested SRM reaction. Fresh, reduced, used samples characterized STA-MS-FTIR, in situ ex XRD, N2 physical adsorption, H2-TPR, TEM, TPO, Raman. re...
Abstract We present here an investigation aimed at exploring the role of microstructure on magnetic properties nanostructured cobalt ferrite. Bulk, almost fully dense, nanograined ferrites have been obtained starting from nanopowders prepared by a simple, inexpensive, water-based, modified Pechini method. This synthesis yielded largely aggregated, pure single-phase ferrite nanoparticles ca. 35 ...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید