Open Positions

Maître de conférences (Chaire d’excellence)

31ème Section : Chimie théorique, physique, analytique

Profil Recherche :

Valorisation de bio-ressources (biogaz, bio-alcools, … ) par des procédés catalytiques avancés pour la production de chaleur et/ou d’électricité

Renforcement de l’équipe « Energies propres et renouvelables » du laboratoire IRCELYON :

Développer les recherches sur la valorisation du biogaz par des procédés catalytiques utilisant des technologies avancées.

Cette thématique s’inscrit dans le cadre du développement éco-conceptuel de nouvelles sources d’énergies en accord avec les objectifs gouvernementaux dictés par le GRENELLE de l’environnement. Le candidat devra mettre en œuvre des procédés de combustion directe de bio-ressources ou de leur transformation en hydrogène, nouveau vecteur énergétique indispensable aux piles à combustibles

Profil Enseignement :

Assurer des enseignements en

• L1-UE « constitution de la matière »,
• L3-UE « Chimie physique » et Catalyse-environnement et en Master.

Domestic activities and cleaning products use generate emissions of volatile organic compounds which can react with atmospheric oxidants coming either from outside or electronic equipments. More specifically, terpenes can react with ozone to form secondary pollutants such as formaldehyde whose carcinogenicity is well-known and secondary organic aerosols (SOAs).

Aerosols impact and effects on health have been observed and confirmed for many years now by epidemiologic studies showing the influence of the aerosol size. The smaller particles are the deepest they can go into the lungs reaching alveolar region. This is the case of Secondary Organic Aerosol (SOA) formed by nucleation and VOC condensation processes. SOA consequently displays a very small particle diameter (< 2.5 µm).

This implies the need to investigate secondary products (gases, SOA) formation pathways and chemical composition whose impact on human health is nowadays poorly known since it is still partly characterized.

The aim of this work is to assess the importance of VOCs reactions and secondary products formation consequently to the use of cleaning products in indoor environments by:

- Characterizing emissions linked to domestic activities and quantifying environmental parameters they are influenced by.

- Estimating secondary products contribution to indoor air quality.

The methodology lies on the combination of real atmospheres experiments (experimental house known as MARIA : Maison Automatisée pour des Recherches Innovantes sur l'Air: automated house for innovative air research) and simulated atmospheres (cleaning products evaluation in emission chambers under realistic, simplified and reproducible conditions). This combination is indispensible for products emissions identification, environmental parameters influence evaluation and secondary products mechanisms of formation understanding.

This study will consist on an alternation of laboratory work to set up the analytical techniques and campaigns in MARIA at CSTB.

For this project financed by ADEME (PRIMEQUAL program), the post-doctorant will be based at IRCELYON (Université Lyon 1 – CNRS) and will perform punctual experiments at CSTB (Champs-sur-Marne), and at INERIS (Verneuil-en-Halatte).

Period: 18 month from June 2010 to December 2011

Salary: 2000 €/ month NETTO

The research group focussing on atmospheric chemistry at the “Institut de Recherches sur la Catalyse et l’Environnement de Lyon” (IRCELYON) invites applications for a postdoctoral fellowship in Atmospheric Chemistry.

This one-year fellowship focuses on the photochemistry of mineral surfaces. The surfaces of uplifted minerals during dust events are suggested to be photochemically active under atmospherically relevant conditions. Such photocatalytical properties may introduce so far unconsidered new chemical pathways that impact on the composition of the atmosphere.

This project includes experimental (laboratory based) and theoretical (atmospheric modelling) studies of the impact of mineral dust and organics on several aspects of atmospheric / environmental science. Near-UV/vis light-absorbing species (such as TiO2, Fe2O3, FeO, MgO) present in mineral dust aerosol interacting with gas trace gases can initiate a new and potentially important photo-induced heterogeneous chemistry, which presently is almost completely undocumented in the atmosphere.

At the interface of physics, chemistry and atmospheric sciences, this project,based on laboratory experiments and/or field studies, will benefit from highly innovative techniques to study photoinduced interactions of atmospheric trace gas species with surfaces representative of dust.