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تعداد نتایج: 677 فیلتر نتایج به سال:
Despite the well-known beneficial effect of reactive element dopants on improving oxidation resistance alumina-forming alloys, many open questions remain, including migration and segregation elements at oxide/alloy interface, a key zone in controlling global kinetics interface adhesion. Herein, we elucidate atomic processes governing interfacial dynamics hafnium with γ-Al2O3 θ-Al2O3, two domina...
In this research, artificial neural network (ANN) and genetic algorithm (GA) were used in order to produce and develop the NiAl intermetallic coating with the best wear behavior and the most value of hardness. The effect of variations of current, voltage and gas flow on the hardness and wear resistance were optimized by ANN and GA. In the following, the optimum values of current, voltage and g...
The synthesis and characterization of M2+/Al (M2+=Ni, Mg) layered double hydroxide (LDH) intercalated polyoxometalate is presented. We have reported the growth on Ni/Mg for degradation methylene blue (MB). By considering variables such as pH dye solution, concentration, time variables, efficiency organic parameters (M2+ = Ni, LDH both composite LDH-polyoxometalate has been identified. X-Ray Dif...
Abstract The paper presents a quick method for the quantification of nickel species in spent FFC catalysts; known quantities NiO and $$\hbox{NiAl}_2\hbox{O}_{4}$$ NiAl 2 O 4 is first done matrix fresh ...
The Cover Feature shows high-performing and stable Cu/NiAlOx catalysts derived from NiAl-hydrotalcite for continuous catalytic conversion of ethanol into butanol, which is one the pivotal processes in biorefinery production renewable fuels value-added chemicals. In their Research Article, Y. Tan, W. Luo, Y.-J. Ding co-workers report that significant enhancement performance terms activity, selec...
Carbon-containing tribofilms have attracted significant interest in the lubrication research despite a scarcity of information on their high-temperature performance under severe boundary conditions. In this study, carbon tribofilm produced from cyclopropane carboxylic acid (CPCa) and NiAl-layered double hydroxide (LDH) nanoparticles was evaluated. NiAl-LDH significantly enhanced friction stabil...
Nickel-based layered double hydroxides (LDHs) are promising electrode materials in the fields of energy storage (supercapacitors) and conversion (urea oxidation). The rational construction atomic electronic structure is crucial for nickel-based LDHs to realize their satisfactory electrochemical performance. Herein, we report a facile, ecofriendly, one-step synthesis process construct petal-like...
Clean production of hydrogen from electrochemical water splitting has been known as a green method of fuel production. In this work, electrocatalytic hydrogen evolution reaction (HER) was investigated at new prepared layered double hydroxides (LDH) in acidic solution. NiAl/carbon black (CB) LDH was monitored using x-ray diffraction (XRD), Fourier transform infrared (FT-IR) spectroscopy, scannin...
In this research, artificial neural network (ANN) and genetic algorithm (GA) were used in order to produce and develop the NiAl intermetallic coating with the best wear behavior and the most value of hardness. The effect of variations of current, voltage and gas flow on the hardness and wear resistance were optimized by ANN and GA. In the following, the optimum values of current, voltage and g...
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