The influence of the support basicity, according to Lewis and Brønsted definition, was investigated for CO2 methanation over isostructural Ru catalysts.

(IPI)Ru(II)(OH)(n)(H(2)O)(m), 2, where IPI is the NNN-pincer ligand, 2,6-diimidizoylpyridine, is shown to catalyze H/D exchange between hydrocarbons and strongly basic solvents at higher rates than in the case of the solvent alone. Significantly, catalysis by 2 is accelerated rather than inhibited by increasing solvent basicity. The evidence is consistent with the reaction proceeding by base mo...

The catalytic activity of racemic thiourea derivatives of Tröger’s base (±)-2–4 in Michael additions of malonate derivatives to trans-β-nitrostyrene was studied. Due to the low basicity of Tröger’s base, the outcome of the addition reactions was strongly dependent on the pKa of the nucleophile. Thiourea catalysts (±)-2, 3 were resolved on the chiral stationary phase Whelk O1. Unfortunately, ena...

Most of the air pollutants in steel industry come from sintering process, and produced by process mainly sinter fuel (coke breeze). The S N content biomass is low; therefore, used instead coke breeze for to reduce emission flue gas pollutants. However, use reduces layer temperature, which results deterioration properties. In order ensure quality base on fuel, thermodynamic calculation related e...

As a result of the depletion high-grade manganese reserves, it has become necessary to consider exploitation low-grade ores. The main problem ore is low Mn/Fe ratio, which makes unfit for production ferroalloys. In this work, selective reduction technique was used smelting low-manganese in presence coke and fluxing material an electric submerged arc furnace obtain rich slag pig iron. product bl...

a novel rice-husk-silica supported n-propyl bipyridinium chloride (rhprbpcl) has been prepared. due to the basicity of rhprbpcl, it was decided to evaluate its catalytic activity in the one-pot preparation of tetrahydrobenzo[b]pyran, dihydropyrano[3,2-c]chromene and dihydropyrano[4,3-b]pyran derivatives. the catalyst was characterized by ft-ir, sem and tga analyses. this methodology offers seve...

Triple-conducting perovskites: Fe 3d–O 2p hybridization affects proton uptake – a larger O → electron transfer decreases 2− basicity. O-XRS elucidates effects of oxidation state and oversized dopants.