Graphene-like nanostructures and composites
Development and study of graphene-like nanostructures and related composites
Tech Area / Field
- CHE-THE/Physical and Theoretical Chemistry/Chemistry
- ENV-EHS/Environmental Health and Safety/Environment
- PHY-PLS/Plasma Physics/Physics
3 Approved without Funding
Institute of Chemistry named after V.I.Nikitin, Academy of Sciences, Republic of Tajikistan, Tajikistan, Dushanbe
- Florida A&M University, USA, FL, Tallahassee
Краткое описание проектаNanostructural materials are new direction of creation and development of functional materials with unique properties, which cannot be formed spontaneously in usual natural conditions. It opens new possibilities in the development of electronics, optics, catalysis, biotechnology, medicine. Materials on the graphene base attracts now a great attention because of a great specific surface, unique electrical, thermal and mechanical properties for the creation of the electrodes for supercapacitors, gas sensors, as catalyst supports and absorbents of different gases. But the absence of techniques of synthesis of required big quantities of graphene materials restricts greatly their use. For this reason, the development of effective methods of synthesis of nanosized metal oxides with graphene and nanosized metal oxides and reduced graphene oxide, full characterization of their chemical properties, phase contents, study of their dispersion a dependence of synthesis conditions and thermal treatment and development of composites on their base is a very attractive task.
In connection with the aforesaid, the main purpose of the project is the development of synthesis methods of graphene-like nanostructures and fabrication of the related composites aimed at obtaining new gas absorbents, catalysts supports, and supercapacitors.
To reach the goal of the Project the following tasks will be solved:
1. Graphite oxide and related highly dispersed carbon nanomaterials will be synthesized using modified Hummers method and characterized.
2. Graphene-like nanostructures will be synthesized by the reduction of graphite and graphene oxides and catalytic pyrolysis of hydrocarbons and characterized.
3. Metal-graphene structures will be obtained and their functional properties will be studied.
4. New composite materials will be fabricated; their properties will be studied.
5. The perspectives of the use of the graphene-like nanostructures as gas absorbents, catalyst supports and supercapasitors will be explored.
State of Research in Institute of Chemistry:
● work experience gained and synthesis methods developed in nano-sized rare-earth and transition metal oxides as well as carbon nanomaterials.
● laboratory equipment has been built to fabricate composites based on highly dispersed carbon materials.
● properties and applications of so called 3D graphene foam have been reviewed.
Influence of the proposed Project on progress in the area.
It is known that in recent two decades a variety of nanostructured materials (thin films, particles, fibers, etc.), i.e. which are smaller than a one tenth of a micrometer in at least one dimension, has received much attention of scientists and engineers.
Nano-meter scale can impart novel properties to the matter. Due to this reason nanomaterials are employed in various fields, including medicine, electronics, aerospace, etc.
Therefore, the synthesis and study of new grapheme-like structures will have both scientific and practical importance.
The competence of project participants of the specified area.
The project will be carried in Institute of Chemistry by V.I.Nikitina AS of Republic of Tajikistan ,where for more than 40 years they are engaged in synthesis, reception of powders and crystals of new compounds of rare earth elements and preparation and investigation nano oxides REE.
Research project leader, Prof.Dr. M.N. Abdusalyamova, is an authority in the field of chemistry of rare earth and transition metals. She has published more than 300 scientific articles and three monographs:1.Abdusaljamova M.N., Kh.S.Kabgov, F. Sharopov, Yu.M.Shulga. Content and magnetic properties of nanostructural erbium oxides. Alternative energetics and ecology. 2012 08(112), pp.66-71.2.Volodin A.A., Fursikov P.V., Belmesov A.A., Shulga Yu.M., Khodos I.I., Abdusaljamova M.N., Tarasov B.P. Composites of lanthan oxides with carbon nanomaterials. Alternative energetics and ecology, № 12. pp. 41-49..
She participated in ISTC projects: Т-1597, Т-1598, Т-1882.
Prof.Dr I.I.Khodos is an authority in the field of electron microscopy of nano-sized compounds, he has many publications in this field:;1.Yu.A. Kasumov, I.I. Khodos, V.T. Volkov, V.I. Levashov, V.N. Matveev, A. Shailos, S. Gueron, M. Kobylko, M. Kociak, H. Bouchiat, V. Agache, A.S. Rollier, L. Buchaillot, A.M. BonnotandA.Yu. Kasumov. CVD growth of carbon nanotubes at very low pressure of acetylen. Appl. Phys. A 88, 687–691 (2007).2. Yu.A. Kasumov, I.I. Khodos, M. Kociak and A.Yu. Kasumov. Scanning and transmission electron microscope images of a suspended single-walled carbon nanotube. Appl. Phys. Lett.89, 013120 (2006). He participated in ISTC projects Т-1882, 3836, 2760.
Project participants B.P.Tarasov and Yu.M.Shulga are authorities in the field of the synthesis of nano-sized compounds:
1.Tarasov B.P., Muradjan V.E., Volodin A.A. Synthesis, properties and examples of application of carbon nanomaterials. Izvestija of Russian Academy of Sciences, Chemical serija, 2011, № 7. pp. 1237–1249. 2. Y.M. Shulga, S.A.Baskakov, V.V.Abalyaeva, O.N.Efimov, N.Y.Shulga, A.Michtchenko, L. Lartundo-Rojas, L.A. Moreno-R, J.G. Cabañas-Moreno, V.N. Vasilets, “Composite material for supercapacitors formed by polymerization of aniline in the presence of graphene oxide nanosheets”, Journal of Power Sources, 2013, Volume: 224, Pages: 195-201. They participated in ISTC Projects: Т-1882, 2760
Expected results and their application.
As a result of the work implementation there will be received new nano-materials, which can be applied as laser materials, as luminescent materials, as new catalysts,, as new nano-sorbents, as magnetic nano-particles for diagnostics in medicine.
Project correspondence to ISTC goals.
Scientists (more than 50 %) who earlier have been engaged in development of rocket materials and technologies within the limits of the State programs of the USSR will assist in the project implementation. Implementation of the project will give opportunities of their activity reorientation on peace researches and provide them with workplaces.
During the project implementation previous contacts with leading Science Centers of the Europe, the USA, Japan that are engaged with researches in the field of nano-technologies will be adjusted and continued. It will promote integration of scientists of Tajikistan into the international scientific community and introduction of modern techniques in industry of Tajikistan.
Role of Foreign Collaborators/Partners
Forms of collaboration with foreign collaborators: Joined researches Transmission of samples for study
Interchange of information in the process of project implementation Joined working seminars, consultations. Execution of joined publications Partnership in received materials commercialize
Technical Approach and Methodology
Graphene nanostructures will be synthesized by the thermal or chemical reduction of graphite oxide using hydrazine as a reducing agent, or sodium borohydride, as well as by the catalytic pyrolysis of hydrocarbons on the surface of metal substrates Co, Ni or Cu. The resulting composites will be studied as gas absorbents, catalysts of organic reactions, fuel cell electrode materials, electrochemical sensors, and supercapacitors.