Showing papers in "Journal of Molecular Catalysis in 2015"

TL;DR: In this article, a rapid and environmental friendly Attenuated total reflectance Fourier transform infrared (ATR-FTIR) spectroscopic method was developed for monitoring the Rhizopus oryzae lipase (ROL) catalyzed hydrolysis of castor oil in oil-in-water emulsion system.

TL;DR: In this paper, a dextranase from Chaetomium erraticum was purified by a combination of tangential ultrafiltration and ion-exchange chromatography, and then the enzyme was characterized.

TL;DR: A smooth, inexpensive and environmentally friendly method to obtain ribavirin was developed in this study, and this immobilized biocatalyst was stable for more than 580 h without activity loss, significantly improving operational stability and mechanical properties over the conventional agarose matrix.

TL;DR: In this paper, the authors presented the hydrolytic biosynthesis of Jatropha curcas hydrolysate (FFA) for the production of biodiesel using locally produced Candida cylindracea lipase immobilized on functionalized activated carbon support.

TL;DR: In this paper, four fungal strains, Mucor spinosus AS 3.2450, Penicillium urticae IFFI 04015, Cunninghamella echinulata As 3.3400, Aspergillus carbonarius I FFI 02087, and As pergillus Carbonarius IFFi 02086, were used as tools for preparing the hydroxylated derivatives and in vivo metabolites of curcumenol.

TL;DR: In this article, a recombinant oleate hydratase (OHase) from Elizabethkingia meningoseptica expressed in Escherichia coli was purified and immobilized for the first time by different strategies.

TL;DR: In this article, the performance of Pd nanoparticles and Pd/Bi OCl catalyzes the formaldehyde to produce hydrogen under the same response condition, and the activation energy for the hydrogen generation reaction was calculated to be 15.2 k J / mol.

TL;DR: The kinetic models based on Ping-Pong Bi Bi mechanism were proposed in lipase-mediated alcoholysis process for biodiesel production, and it was found that in the process of NS81006-catalyzed methanolysis of soybean oil, the hydrolysis followed by esterification as well as the methnolysis would occur simultaneously.

TL;DR: In this paper, a series of Cu / B / Ca / Al2O3 catalysts with different Ca O contents were prepared by the wet impregnation step-by-step and studied in the hydrogenation of sec-butyl acetate to secbutanol, and the effects of CaO contents on the c atalyst structure,reducibility,acidity and the dispersion of metallic copper were evaluated by XRD,H2-TPR,XPS,NH3-TPD and N2O-H2 redox titration.

TL;DR: In this article, the Pt-Sn bimetallic catalysts supported on Vulcan XC-72 with various Pt/Sn ratios were prepared by one-step reduction process using ethylene glycol as reduction agent and by two-step reducing process using sodium borohydride reduction and PVP as stabilizer to tin colloid and sequential deposition of Pt reduced by ethanol glycol reduction.

TL;DR: Whole cells of Nocardia corallina CGMCC 4.1037 were capable of catalyzing the stereo-inversion of( R)-4-fluorophenylglycine to its( S)-enantiomer, but not in the reverse direction.

TL;DR: In this paper, the preparation factors of Pd catalysts were reviewed, such as precursors, carriers, additives, preparation method, and factors influence on low-temperature oxidation activity,hydrothermal stability and resistance to sulfur poisoning performance.

TL;DR: In this paper, the deactivation process of TS-1 zeolites in the catalytic conversion of ethylene to ethylene glycol in an aqueous solution of H2O2 was studied in detail.

TL;DR: In this article, the effect of different Ce / Mn molar ratio on the SCR performance was investigated, and the results indicated that the Ce O2-Mn Oxcatalysts exhibited the excellent catalytic activity at 50 ~ 150 ℃.

TL;DR: In this article, the effects of preparation methods of Ti O2-Zr O2 on catalytic performance of Ni-WO3/Ti O2ZR O2 for nheptane isomerization were investigated.

TL;DR: The Fe Cl3/Tributyl Phosphate (TBP) ligand was tested in telomerization of tetrachloromethane with chloroethylene promoted by Fe/Fe Cl3 redox catalyst as discussed by the authors.

TL;DR: In this article, the Ni/MgAl O and NiRu / Mg Al O catalysts were prepared by calcined reconstruction method for the dry reforming of methane, and X-ray diffraction,temperature programmed reduction of hydrogen,thermogravimetric analysis,X-ray photoelectron spectroscopy, temperature-programmed desorption of carbon dioxide and transmission electron microscopy were used to investigate the structure and deactivation characteristics of the catalysts.

TL;DR: In this article, supported metallocene catalysts were prepared, in which SiO 2 was used as the carrier, Cp2 ZrC l2 was used to the main catalyst and MAO, B(C6F5)3, HNMe2Ph][B( C6F4), Ph3C][B6F 5] and TMA were used as activators respectively, and the effect of the activators on the catalytic properties in homopolymerization and α-olefins copolymerization was investigated.

TL;DR: Ce-based oxides were prepared by citric acid complex method and characterized by nitrogen physisorption, XRD, BET, H2-TPR and XPS; their catalytic performances in simultaneous removal of diesel soot and NOx were investigated on a thermogravimetric apparatus and a tubular reactor as mentioned in this paper.

TL;DR: In this article, a periodic mesoporous organosilicas with benzene or ethane bridging groups was assembled by using mixed tetrabutyl titanate as the titanium sources and tetraethyl orthosilicate as the inorganic silica sources.

TL;DR: In this article, the impact of potassium promoter on product distribution for CO2 hydrogenation over Cu-Fe-Zn catalyst was investigated, and the results revealed that the addition of a potassium promoter shifted selectivity to high molecular weight compounds and led to the formation of higher alcohols and oxygen containing compounds in the products.

TL;DR: In this paper, the effects of TiO 2loading amount, calcination temperature and time, and water vapor on the activity of photocatalytic oxidation of NO have been investigated.