- EPSRC grant success for Chemical Engineering Professor Asterios Gavriilidis and Dr. Simon Kuhn
- Grant award success for Dr. Paola Lettieri (PI) for a project on "Carbon capture and storage for small scale gas fired combined heat and power schemes"
- “Controlling a Spillover Pathway with the Molecular Cork Effect” co-authored by Dr Stamatakis published by Nature Materials
- IChemE 2013 medal winners announced
- Dr Simon Kuhn awarded the EPSRC First Grant (£99k) on "Process Intensification Using an Advanced Flow Reactor"
- Dr Paola Lettieri attends award ceremony for the Queen Elizabeth Prize for Engineering at Buckingham Palace
- £2.95M funding for UCL in Grid Scale Energy Storage
- "Facet engineered Ag3PO4 for efficient water photooxidation” by J. Tang Group published in Energy & Environmental Science
- Engineers Without Borders’ successful trip to Kenya
- Dr Stamatakis recognized as a Top Reviewer of CACE
- Chemical Engineering Cocktail Party 2013
- Professor Marc-Olivier Coppens at Bloomsbury Festival
- Catalysis Kinetic Monte Carlo Package "Zacros" Released by Dr Stamatakis's Group
- Professor Bruce Hanson joins Chemical Engineering as Honorary Professor to strengthen nuclear fuel cycle research and teaching
- Chemical Engineers climb pay table
- Harry Michalakakis wins award at the National Student Challenge 2013
- Electrochemical Innovation Lab website goes live
- Congratulations to Professor Haroun Mahgerefteh awarded an Eminent Scholar Program grant.
- The Royal Academy of Engineering/The Leverhulme Trust Senior Research Fellowship awarded to Dr Lettieri
- MSc Summer School, 10-11 June 2014
- MSc Bursaries
“Controlling a Spillover Pathway with the Molecular Cork Effect” co-authored by Dr Stamatakis published by Nature Materials
3 June 2013
Hydrogenation processes are of paramount importance in the chemical industry with a vast range of applications in the food, petrochemical and pharmaceutical sectors.
Heterogeneous catalysts are widely used for hydrogenation; however, controlling the spillover of hydrogen on catalytic surfaces is challenging . In this work, Prof. Charles Sykes (Tufts University) shows experimentally that it is possible to achieve this type of control on a Pd/Cu(111) catalyst by reversible adsorption of a spectator molecule, CO. Kinetic Monte Carlo simulations performed by Dr Michail Stamatakis (UCL) shed light into the molecular-level processes occurring on the catalytic surface, and show that hydrogen can only escape from the catalytic centres (Pd atoms) in the absence of CO. This “molecular cork” effect can have profound implications in catalysis. In particular, it is possible to trap hydrogen on the surface of the catalyst at temperatures higher than the normal desorption temperature of this species from Cu/Pd. Due to the higher temperature, adsorbed hydrogen under these conditions can exhibit high reactivity, thereby increasing the rate of hydrogenation reactions.
Page last modified on 03 jun 13 11:50