Doping with additives in a Li-Mg-N-H system has been regarded as one of the most effective methods of improving hydrogen storage properties. In this paper, we prepared Li3AlH6 and evaluated its effect on the dehydrogenation properties of 2LiNH2-MgH2. Our studies show that doping with Li3AlH6 could effectively lower the dehydrogenation temperatures and increase the hydrogen content of 2LiNH2-MgH...

The applications of carbon nanotubes (CNTs) as catalysts have attracted much interests in catalysis community due to their unique porous microstructure and chemical properties. One of the promising results is the use of CNTs in the oxidative dehydrogenation (ODH) of ethylbenzene to styrene [1,2]. However, only few works were reported on the use of CNTs or other carbonaceous materials to catalyz...

The gas phase reaction of V4O10 with propane is studied by infrared photodissociation spectroscopy combined with density functional calculations. Mass-selected V4O10 clusters react with propane under thermalized, multiple collision conditions in a buffer gas filled ion trap at 100 K. Two main reaction paths are identified: (i) oxidative dehydrogenation forming V4O8(OH)2 + propene and (ii) direc...

The surface chemistry of adsorbed isopropoxy groups on supported vanadia–alumina and vanadia–silica catalysts was investigated with multiple in situ spectroscopic techniques. The in situ FT-IR, Raman and UV–vis spectroscopic measurements provided molecular level information about the surface intermediates and the surface vanadium oxide species as a function of different conditions. The spectros...

Edge functionalization of bottom-up synthesized graphene nanoribbons (GNRs) with anthraquinone and naphthalene/perylene monoimide units has been achieved through a Suzuki coupling of polyphenylene precursors bearing bromo groups, prior to the intramolecular oxidative cyclo-dehydrogenation. High efficiency of the substitution has been validated by MALDI-TOF MS analysis of the functionalized prec...

With regard to the application in a microstructured reactor, a special VOx/Al2O3 catalyst powder (3 μm) was prepared and characterised by BET, XRD, UV/Vis DRS, and Raman spectroscopy. The higher the vanadium content, the higher the degree of polymerisation of the vanadium species on the support surface and the lower the BET surface area. Pelletised powders were tested in conventional tubular re...

Abstract CO2 can be used as a soft oxidant for oxidative dehydrogenation of light alkanes (CO2-ODH), which is beneficial to realize the reuse and meet demand olefins. The core this reaction catalyst. Cr-based catalysts have attracted much attention their excellent catalytic performance in CO2-ODH reactions due various oxidation states local electronic structures. In paper, synthesis modificatio...

Three case studies to demonstrate the ability to characterize oxidation model catalysts and reactions of these systems at the atomic level are reviewed. Firstly, results on small Au aggregates on a clean MgO(100) surface which are interesting model systems for low temperature oxidation are considered. Secondly oxidative dehydrogenation of methanol on alumina supported Pd is addressed. The probl...

O2 reacts with propanediols via homogeneous pathways at 400-500 K. 1,2-Propanediol forms CH3CHO, HCHO, and CO2 via oxidative C--C cleavage and acetone via dehydration routes, while symmetrical 1,3-propanediol undergoes dehydration and oxidative dehydrogenation to form, almost exclusively, acrolein (ca. 90 % selectivity). The products formed and their kinetic dependence on reactant concentration...

The first total syntheses of welwitindolinone A and the most complex members of the fischerindole family, fischerindoles I and G, are reported. Highlights of these short, protecting-group-free syntheses include the application of the recently developed direct indole-carbonyl coupling, a simple approach for installing the quaternary center with neighboring chlorine atom, a regioselective dehydro...