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Information × Registration Number 0218U001156, 0117U000022 , R & D reports Title Working out fundamental base for process of nanoporous adsorbents preparation from alkali activated coals of different rank popup.stage_title Head Kucherenko Volodymyr, Registration Date 24-01-2018 Organization LM.Litvinenko Institute of Physical Organic and Coal Chemistry popup.description2 Different rank coals (carbon content range Cdaf=70-96%) structure reorganization under МОН/coal ratio (RMOH=1-30 mmol/g) alkali impregnation was studied. By alkali adsorption kinetic data two processes were detected: 1) rapid ion exchange of OH-acidic groups protons; 2) slow uptake of ions М+ and molecules МОН by coal with formation of intraframework ?-complexes of coal polyarenes with М+ cations, which becomes easier with RMOH and cation polarizability increase and which changes paramagnetic properties and spatial structure of coal. Structure changes intensity decreases with coal rank increase. Alkali intercalation decreases single electron concentration (at 1,1-1,9 times) that proves straight contact between МОН and coal radicals at molecular level. It was stated that associated pares "М+-reactivity centre" into coal framework promote thermoinitiated heterolysis С-О and С-С coal bonds with formation of precursor of nanoporous framework. Product Description popup.authors Єфімова Ірина Владиславівна Абакумов Олександр Олександрович Бован Любов Анатоліївна Волкова Лариса Костянтинівна Кравченко Віктор Васильович Кравченко Галина Григорівна Мисик Роман Дмитрович Раєнко Олена Валентинівна Сабєрова Вікторія Олександрівна Смоляр Олена Федорівна Тамаркіна Юлія Володимирівна Фролова Ірина Борисівна Чернишова Марина Іванівна Шендрік Тетяна Георгіївна Шологон Віктор Іванович popup.nrat_date 2020-04-02 Close