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Information × Registration Number 0216U005890, 0111U007235 , R & D reports Title Nanocomposite porous materials on the basis of titanium dioxide and carbon for technologies of using and accumulation of hydrogen. popup.stage_title Head Manorik Petro Andrievich; Ilyin Volodimir Georgievich, Registration Date 01-03-2016 Organization L.V.Pysarzhevsky Institute of Physical Chemistry of National Academy of Science of Ukraine popup.description2 The influence of the extent of humidity and dopant concentration on the current-voltage characteristics of composite membranes Nafion®/TiO2 and Nafion®/TiO2, including films of palladium deposited on the surface of the membrane, in the range of relative humidity 23-70% were investigated. It was found that for composite membrane (Nafion®/TiO2 and Nafion®/TiO2 with films of palladium) current strength is by the one and two orders of magnitude higher, respectively, than the obtained for pure Nafion® at RH 30%. It was shown that the current-voltage characteristics of the composite Nafion®/TiO2 consist of three regions, that may indicate about different mechanism of the charge transfer in the measured voltage range. The possibility of using porous silicon layers to develop hydrogen micro fuel cells with composite proton membrane Nafion was demonstrated. On the basis of the results of research showed high adsorption capacity for hydrogen (energy | ??o |, specific adsorption on the surface of the pores ?) nanoporous (Vpor - to 1.0 cm3 / g, SBET - up to 600 m2 / g) of crystalline modifications of carbon nitride, and silicide obtained by using matrix synthesis according CN- (EDTA,CCl4) and C- (sucrose and polimetylcarbosylane) as precursors and as exotemplates mesoporous molecular sieves SBA-3 type, SBA-15 and KIT-6, MCF. Revealed growth | ??o | and ? for crystalline forms CN-samples compared to amorphous (| ??o | - from 5.1 to 5.6 kJ / mol, ? - from 5.5 to 7.3 mmol / m2) and the maximum among the investigated porous materials, specific adsorption of hydrogen in SiC-samples (? - up to 15 mmol / m2, 1.2% wt. h 2 for SiC sample with specific surface 410 m2 / g). These effects associated with hydrogen adsorption activated in semiconductors, including a noticable growth ? in the presence of excess C (N) in the framework of crystalline modifications of carbon nitride, and carbon silicide. Product Description popup.authors Бараков Р.Ю. Леоненко Є.В. Тельбіз Г.М. Філоненко С.М. Щербань Н.Д. Яремов П.С. popup.nrat_date 2020-04-02 Close