The exchange reaction of CH 4 with D 2 was carried out over 13 kinds of metal oxide catalysts. Among them, a series of alkaline earth metal oxides (MgO, CaO, SrO, and BaO) and La 2O 3 exhibited activity at 300 °C. The variations of the activities of these catalysts as a function...
A method for forming protective aluminide coating on metal base is realized by application of reaction element on metal base in the form of powder of oxide of this element with subsequent forming the protective coating. Applied is also metal base provided with protective coating. The invention ...
Additionally, the results of ICP-OES presented in Table S3 indicate that in single metal ZIFs, such as ZIF-67 and ZIF-8, the respective total contents of metal are 34% and 33%,. In polymetallic specimens with Ni, the contents of Nickel were lower in comparison with those of Zn and Co...
2.2. Synthesis of Ni-Cu NPs via surfactant-free method Ni-Cu metallic nanoparticles with a Ni:Cu molar ratio equal to 3:1 were synthesized via surfactant-free method described elsewhere [11]. In a typical synthesis, the metal precursor solution (total 25 mM; 100 ml) was added to a NaOH...
Photoredox nickel catalysis has emerged as a powerful strategy for cross-coupling reactions. Although the involvement of paramagnetic Ni(I)/Ni(III) species as active intermediates in the catalytic cycle has been proposed, a thorough spectroscopic investi
oxidation of an aluminum parent metal to form a polycrystalline ceramic material by providing a filler having a coating of a silicon source on at least a portion of said filler different in composition from the primary composition of said filler, said silicon source possessing intrinsic doping ...
Competing Pathways in the Reaction of Bis(pentafluorophenyl)borane with Bis(<IMG src="http://www3.interscience.wiley.com/giflibrary/12b/eta.gif" border=0><SUP><FONT size=-1>5</FONT></SUP>-cyclopentadienyl)dimethylzirconium: Methane Elimination versus Methyl-Hydride Exchange and an Example of ...
H2 evolution on RuO2, IrO2 and CO3O4 prepared by thermal decomposition of suitable precursors at temperatures between 300 and 500°C has been studied in alkaline solution (1 mol dm- NaOH) by means of quasi stationary potentiostatic curves and reaction order determination. The electrodes have be...
Significant progress has been demonstrated in the development of bifunctional oxide-zeolite catalyst concept to tackle the selectivity challenge in syngas chemistry. Despite general recognition on the importance of defect sites of metal oxides for CO/H2
The exceptional electrocatalytic properties mainly results from the formation of the unique ultra small 2D structures of Cr–FeNi LDH, metal ions with multivalent oxidation state (such as Fe3+, Fe4+, Ni3+, Ni4+, Cr3+, and Cr4+), which promote the exposure of active sites and thus ...