نتایج جستجو برای: co promoter
تعداد نتایج: 418156 فیلتر نتایج به سال:
• Self-separable H 2 fuel without forming CO x over 2D SnS/g-C 3 N 4 heterojunction. Selective redox-reactions enabled higher value-added liquid chemicals. Ultra-stable new-record efficiency in producing with low-cost catalyst. Sustainable constructive utilization of elements from alcohols. To reach Paris Agreement’s target 1.5 °C global temperature increase by 2100, low emission strategies are...
Utilization of active and stable catalyst could have enormous advantages in industrial application of biogas reforming. In order to achieve this goal, the effects of Cu and Co as promoters were investigated over physical-chemical properties of Ni/Al2O3-ZrO2 catalyst in reforming of biogas. The sequential impregnation was used for preparation of catalysts. The catalysts were characterized using ...
Promotional nature of Sn on Pt/CeO2 for the oxidative dehydrogenation of propane with carbon dioxide
The oxidative dehydrogenation of propane with CO2 (CO2-ODP) is a promising technology for the efficient production propene in tandem reduction to CO. However, rational design high-performance catalysts this green process still challenged by limited understanding nature active sites and reaction mechanism. In work, effects SnO2 promoter on Pt/CeO2 activity selectivity CO2-ODP are elucidated thro...
Vanadium phosphorus oxides (VPO) has been applied as a heterogeneous catalyst in gas phase oxidation reactions and its application is very limited in liquid phase. In this study a series of cobalt-doped vanadium phosphorus oxides (VPO-Co) catalysts with different loading of Co (0.01-1.0 mol ratio of Co/V) were prepared. Oxidation of benzyl alcohol was studied in the liquid phase over VPO and VP...
OBJECTIVE ADAMTS (a disintegrin and metalloproteinase with thrombospondin type-1 motif) zinc metalloproteinases are important during the synthesis and breakdown of cartilage extracellular matrix. ADAMTS-12 is up-regulated during in vitro chondrogenesis and embryonic limb development; however, the regulation of ADAMTS-12 expression in cartilage remains unknown. The transcription factor c-Maf is ...
The GC box is an important transcriptional regulatory element present in the promoters of many mammalian genes. In the present study we examine the effect of known GC-box-binding proteins on the promoter of the human elongation factor 1 A-1 (hEF1A-1) gene in human HeLa cells and Drosophila SL2 cells. In HeLa cells co-transfection with the GC-box-binding protein BTEB resulted in a 4-10-fold incr...
The studies of PGE2 (prostaglandin E2) biosynthesis have focused primarily on the role of cyclo-oxygenases. Efforts have shifted towards the specific PGE2 terminal synthases, particularly mPGES-1 (microsomal PGE synthase 1), which has emerged as the crucial inducible synthase with roles in pain, cancer and inflammation. mPGES-1 is induced by pro-inflammatory cytokines with studies focusing on t...
The impact of different co-catalytically acting promoters (Pt, ZrOx and SmOx) during COx methanation was investigated on alumina supported Co-based model catalysts. To obtain samples with identical structure morphology independent the presence type promoter added, double flame spray pyrolysis employed for synthesis, which, in contrast to classical catalyst preparation techniques, allows control...
Cotton (Gossypium hirsutum L.) is an important crop in the world and increasing its fiber quality is very cr-ucial for textile industries. Spider silk is the strongest and most elastic fiber ever known in the nature. Cotton is one of the main crops in the world and increasing its fiber quality is very important for textile industries. In this regard, a synt-hetic construct has been designe...
the aim of this study was to analyze the polymorphisms existing in the 5´ flanking region, exonic, and some parts of the intronic regions as well as methylation analysis of the ednrb gene in cattle and goat. these regions were sequenced in three different breeds of cattle including sistani, golpayegani, and holstein and were compared with that of marghoz goat. the results identified that this g...
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