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Nataliya D. Shcherban,Svitlana M. Filonenko,Pavel S. Yaremov,Mykola Skoryk,Vladimir G. Ilyin,Atte Aho,Dmitry Yu. Murzin 한국공업화학회 2016 Journal of Industrial and Engineering Chemistry Vol.34 No.-
The samples of nonstoichiometric carbon nitride characterized by spatial ordering, large pore volume(up to 0.8 cm3/g) and specific surface area (up to 585 m2/g) were obtained via matrix carbonization ofethylenediamine in the presence of carbon tetrachloride in mesoporous molecular sieves KIT-6 and MCFas exotemplates. In contrast to nitrogen-containing carbons (obtained by modification of carbon sampleswith nitrogen in the result of compatible thermal treatment of the initial porous carbon with melamine)nonstoichiometric carbon nitride contains much more nitrogen (up to 13.7 wt.% (C/N = 6), comparedwith preceding 0.6 wt.%) and increased the quantity of basic nitrogen-containing groups (in particular,amino groups)—up to 0.68 mmol/g (vs. 0.46 mmol/g). The increase of adsorption capacity towardshydrogen and carbon dioxide: adsorption potential, differential heat of CO2 adsorption, specificadsorption on the pore surface—from 5.4 to 7.3 mmol H2/m2 and from 2.2 to 5.4 mmol CO2/m2 for carbonand synthesized samples of nonstoichiometric carbon nitride, respectively, due to the incorporation ofnitrogen atoms into the carbon framework was noticed.
Valentin N. Sapunov,Antonina A. Stepacheva,Esther M. Sulman,Johan Wärnåc,Päivi Mäki-Arvela,Mikhail G. Sulman,Alexander I. Sidorov,Barry D. Stein,Dmitry Yu. Murzin,Valentina G. Matveeva 한국공업화학회 2017 Journal of Industrial and Engineering Chemistry Vol.46 No.-
Stearic acid hydrodeoxygenation into n-heptadecane on the catalyst containing Pd nanoparticlesincorporated in the hypercrosslinked polystyrene matrix was studied. The used catalysts werecharacterized using TEM, CO chemisorption, low-temperature nitrogen physisorption and XPS. A clearhydrogen pressure dependent induction period was noticed. Kinetic regularities were studied for theindicated reaction in the presence of polymer based catalysts. A mathematical model for decarboxylationwas suggested which was able to adequately describe experimental data at different temperatures,hydrogen pressures and initial concentrations of stearic acid. Kinetic constants were calculated and theirstatistical analysis was performed.