Easily scalable method for the synthesis of large volumes GNP from cyclic hydrocarbons Aleksei Vozniakovskii, Aleksandr Vozniakovskii, Sergey Kidalov FGUP. - презентация

1 Easily scalable method for the synthesis of large volumes GNP from cyclic hydrocarbons Aleksei Vozniakovskii, Aleksandr Vozniakovskii, Sergey Kidalov FGUP NIISK

2 Graphene nanoplatelets (GnP) 2 WHY GnP? Powder nanomaterial with unique properties (graphene like) D=3,5-3,7 A

3 Application of GnP 3 1)Metal composites 2)Polymer composites (plastics, rubber) 3)Ceramic composites 4)Sorbents 5)Microelectronics 6)Medicine 7)Etc. Industry requirements: Large quantities of material at low prices

4 Market of GNP 4 high price 1. industryhttp:// industry 2.xgsciences.com [1] 100 million $

5 Burning speed ( cm/s); The combustion temperature in inorganic systems ( K); in organic The rate of heating of the substance in the wave ( /s); Ignition power ( cal / (cm.sq.sec); Duration of ignition ( s); The ignition temperature of inorganic systems ( ); organic SHS is an exothermic chemical process of the combustion type that proceeds in the autowave mode in powder mixtures and leads to the formation of useful condensed products, materials and products. SHS is a mode of exothermic reaction, in which heat release is localized in a narrow layer (synthesis zone) and transferred from layer to layer by heat transfer. Self-Propagation High-temperature synthesis (SHS) 5

6 Synthesis Initial biopolymers (starch, lignin) oxidizer High Purity GNP SHS_GNP High-temperature synthesis (SHS) Price=30 $/kg 1)High synthesis rates 2)simplicity technical execution 3)Cheapness of reagents 4)The high performance of the method 6

7 The three-step model of the formation of HNP by the SHS method

8 SEMSTEM 20 μm SEM and STEM studies 8

9 20 μm 2θ, deg. Intensity (a.u.) SVSG 1,9 620 X-ray diffractionRaman spectroscopy 9 X-ray, Raman, true density and Specific Surface Area studies

10 Butadiene-nitrile rubber – GNP composite material 10 GNP concentration, mass. %0126 1,621,812,103,19 0,860,891,451, Tear resistance, MPa 7, , ,9-59,4 Thermal conductivity, W/(m*K)0,20,6190,6480,659

11 P8. Accessible method for obtaining a 2D carbon matrix for immobilizing biological objects Immobilizing properties 11

12 Radionuclide sorption 12 SampleSorbed uranium,% of the content in a standard solution The relative content of uranium in the liquid phase after 24 hours of desorption,% of the sorbed SVSG2,4297,20,67 32 SHS_GnP 24 h periodic mixing

13 Conclusion 1)We have proposed a new method for obtaining GNP from biopolymers (such as starch and lignin) by the SHS process. 2)The proposed methodology allows to obtain large volumes of GNP of high quality at a price of about $ 30/kg. 3)The obtained GNP showed its effectiveness as an additive in butadiene-nitrile rubber, as a sorbent of radionuclides, and also as a carrier of bacteria-oil destructors. 13

14 Contacts Vozniakovskii Aleksei Aleksandrovich Thank you for attention! We invite you to cooperation!