Centre d’Élaboration de Matériaux et d’Etudes Structurales (UPR 8011)


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Prof. Ramaprabhu seminar


Carbon nanomaterials for clean energy generation & storage

Wednesday, May 23 at 10:30 a.m.
conference room at CEMES

S. Ramaprabhu

Institute Chair Professor of Physics

Alternative Energy and Nanotechnology Laboratory (AENL), Nano-Functional Materials Technology Centre (NFMTC), Department of Physics, IITM, CHENNAI 600036, India

Email : ramp chez iitm.ac.in

Abstract :

The last few years have witnessed the development and large-scale manufacturing and production of novel nanocomposites, some of them promise exciting energy and biological related applications. One-dimensional carbon nanotubes (CNTs) and two-dimensional graphene have outstanding properties, which have sparked an abundance of research since their discovery. They possess excellent thermal and chemical stability, high surface area and favorable electronic properties. These remarkable arrays of features have potential applications as biomedical materials and devices, biosensors, drug and vaccine delivery vehicles and novel biomaterials. In addition, they promise a wide range of energy applications such as catalyst supports in fuel cells, Li ion battery, gas sensors, gas-storage media, supercapacitors, nanolubricants, and nanofluids.

 

The continuous consumption of fossil fuels may lead to serious energy crisis in the future due to its depletion. It is suggested that in this scenario of diminishing fossil fuels, solid-state hydrogen-fuel cell can be the future energy resource in hydrogen economy. Fuel cells are the electrochemical devices that can convert chemical energy into electrical energy by electrochemical oxidation and reduction reactions, which give water as the by-product. Proton exchange membrane fuel cells (PEMFC), run by hydrogen stored in hydrogen storage device, have been considered as the future energy converting devices because of its low emission, portability, high operating voltage, quick startup and high efficiency. In Li-ion battery, there is a need to increase the rate capability and bringing a synergy between CNT and reduced graphene oxide can enhance rate capability. Besides, in the lubrication of the industry components, nanolubricants can provide better lubrication effects due to the considerable decrease in the friction and temperature, which depends on the base oil and the carbon nanomaterials used. The present talk offers a concise and focused review of the state-of-the-art in the synthesis and clean energy generation and storage applications of carbon nanotubes and reduced graphene oxide composites.