Dr Camille Petit, Faculty of Engineering, Imperial College, London

Towards the Design of Multi-Purpose Nanomaterials for Sustainability
When Oct 27, 2014
from 02:00 PM to 03:00 PM
Where LR8, IEB Building, Engineering Science
Contact Name
Contact Phone 01865-283302
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Through examples from our research studies, this talk will highlight the pivotal role of hybrid nanomaterials in the development of energy- and environment-related technologies. Specifically, the use of hybrid materials based on Metal-Organic Frameworks (MOFs) and graphite oxide (GO) for toxic gases removal; along with the evaluation of novel organic-inorganic solvents for CO2 capture will be discussed.
The former type of composites exploits the complementary strengths of MOF and GO for separation. Their nanostructure and chemistry are designed to provide strong adsorption forces that allow these adsorbents to greatly surpass the efficiency of conventional physical adsorbents. The second type of hybrid materials consists of a polymeric canopy grafted onto an inorganic core. Here, it is shown that CO2 capture using these materials arises from an enthalpic effect via reaction with task-specific groups, as well as an entropic effect via the specific structural arrangement of the polymer chains. This unique feature in concert with the negligible vapour pressure and high thermal stability of these materials make them potential candidates for the next generation of capture materials.
Beyond enhancing separation capabilities, it is crucial to build integrated and sustainable technologies. Multifunctional materials have a critical role to play towards this goal. This aspect will be illustrated in the area of CO2 capture and conversion to chemicals. Here, we currently explore the use of nanocolloids to serve as dual-purpose materials for simultaneous CO2 capture and electrochemical conversion.