Invited SpeakersProfile Details

Dr. Philip Llewellyn
Dr. Philip Llewellyn Aix-Marseille University & CNRS

Biography

​Dr Philip Llewellyn carried out his PhD on the characterisation of nanoporous zeolite materials using gas adsorption in 1992. This was financed by an EU collaborative program between Brunel University (UK) and the CNRS in Marseille (France). In 1993, he was carried out a Post-Doctoral Fellowship in Mainz University (Germany), dealing with the occlusion of polymers inside mesoporous silica's. He joined the CNRS in 1993 as a Research Assistant and in 1999 received a 'Habilitation to Direct Research'. He was promoted to Research Director in 2009.

He is the author of over 200 peer reviewed papers and 4 patents (Hindex = 57). He received the AFCAT-Setaram, Young Researchers award in 2000 for his work in thermal analysis and calorimetry. In 2005, he received the Scientific Diffusion Prize at the 5th Festival of Science and Technology for his contribution brining Science to the Classroom and General Public.

Dr Philip Llewellyn's research interests lie in the thermodynamic analysis of adsorption at the gas/ solid interface.  Three aspects are considered:

  • Understanding adsorption phenomena in well ordered solids

  • Using gas adsorption for the characterization of heterogenous solids

  • The evaluation of porous materials for their eventual use in applications including the storage and separation of gases.

Various approaches are taken including the development of specific apparatus to follow phenomena under pressure with microcalorimetry, the adsorption of mixtures and a coupled adsorption-Synchtrotron XRD system. These experimental aspects are accompanied by the macroscopic thermodynamic modeling of adsorption for the prediction of mixture behavior.

Much of his current projects lie in the evaluation of nanoporous materials with respect to several topics such as greenhouse gas recovery, hydrogen storage and hydrocarbon separations. Several classes of materials are under investigation in his group including activated carbons, zeolites, mesoporous silicas and metal organic frameworks.

All sessions by Dr. Philip Llewellyn

  • Day 2Tuesday, February 21st
Session 3: Advanced Porous Functional Materials/Modeling II
10:00 am

Flexibility in MOFs: An Academic Curiosity or Real Potential in Applications?

One of the particularities of Metal-Organic Frameworks (MOFs) is their compliancy. One of the forms that this can take is structural flexibility where it is possible to transit from one form to another with potential variations in unit cell volume and accessible porosity. Examples of this range from jungle-jim structures and interdigitated layers with phenomena known as gate opening or breathing for example. A recent study has shown that negative cell expansion can occur gas adsorption.
Several groups have deeply investigated these phenomena and our group has equally made diverse contributions to this topic area. Notably our group has studied :
(i) gas separation,
(ii) gas storage, and
(iii) mechanical energy storage.
This contribution will resume some the authors contributions to this field with the aim to give the audience an honest perspective of the interest of flexibility for the above topics, but also the pitfalls that that such fascination behavior need to overcome. Finally one perspective study will be briefly discussed.

Level 0, between bld. 4 and 5 10:00 - 22:30 Details