Start
Sep 03, 2015 - 17:00
End
Sep 03, 2015 - 18:54
Venue
Room # 118 Chem. Engg. Dept.
Event Type
Speaker
Srinivas Gadipelli Department of Chemistry University College London London WC1H 0AJ UK.
Title
Engineering nano structures with added extra functionalities for carbon capture and energy storage
Abstract: Several energy and environmental technologies require the advance of highly stable porous/nanostructures to enhance the performance of core devices such as in chemical energy storage purification/separation of gaseous molecules and pollutant removal in water and air. Materials with well-controlled particles/pores from a few nanometres to a few hundreds of nanometres are indispensable to solve many energy and environment related problems.This talk describes recent efforts in engineering such nano structures/porous solids with added extra functionalities for efficient Carbon (CO2) Capture and Energy (Hydrogen Methane & Electrochemical) Storage. The research is focussed on multifunctional nanostructured materials such as Metal–Organic Frameworks (MOFs) Carbons (Activated Templated graphene-oxide- MOF -& biomass-derived) and Hydrogen Storage Materials. Particularly demonstrated is a method of obtaining multifunctional carbons with highly tuneable and hierarchical pores of high surface area and ultra-high pore volume.The carbons show outstanding CO2 /Methane adsorption & electrochemical energy storage capacity. The CO2-philicamine impregnated carbon monoliths also show exceptional CO2 sorption kinetics and stable cyclic capacities at the simulated flue-gas conditions significantly outperforming any known sorbents reported to date.1 We also present a facile and effective method of enhancing CO2 uptake binding and selectivity of MOFs. Towards the end we show a strategy for high capacity with rapid kinetics of clean hydrogen generation from the nanostructured chemical hydrides by nano confinement within the stable MOF pores. Overall we aimed to enhance the structure - property relationships and such improvements can only be offered by innovations in materials.Author information: Dr. Srinivas Gadipelli received his Bsc (1999) and Msc(Tech) (2002) degrees from the Osmania University and PhD (2007) from Indian Institute of Technology Madras India. He has worked extensively in the field of hydrogen storage materials and performing research on synthesis of novel nanostructures of graphene/carbons MOFs and complex hydride materials. He has contributed over 45 international peer reviewed journal publications with over 280 impact points and 1200 citations. As a postdoctoral researcher for the past eight years he has been working at London Centre for Nanotechnology & Physics at University College London (UCL) & Rutherford Appleton Laboratory UK and Materials Science & Engineering at University of Pennsylvania & Centre for Neutron Research at National Institute of Standards and Technology USA. Currently he is working at the Department of Chemistry UCL UK.