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Bernal Institute Research Forum

Wed, 20 Sep 2017

Date: Wednesday, September 20, 2017
Time: 12:00 to 13:00
Duration: One hour
Contact: Joan O'Riordan -
Location: MSG-025 MSSI Building Extension, Ireland

Dr Grégoire Herzog, Laboratoire de Chimie Physique et Microbiologie pour l’Environnement (LCPME), CNRS-Université de Lorraine, France.

Electroanalysis at Interfaces Modified with Mesoporous Silica.

The quest for faster, more sensitive, more precise and more selective chemical analysis in complex real samples poses great challenges to the analytical chemist. Electrochemical sensors may answer those challenges provided that adequate surface functionalisation is selected. At the LCPME, we have investigated the use of oriented and organised mesoporous silica thin films as sensor substrates for the detection of small redox active molecules (e.g. propranolol and Paraquat). The speaker will present (i) the electrogeneration and the characterisation of mesoporous silica thin films at solid electrodes; (ii) the role of silica mesochannels in the improved detection of Paraquat; and (iii) the transposition of silica electrogeneration to the interface formed between two immiscible electrolyte solutions.

Grégoire Herzog is a CNRS researcher at the Laboratoire de Chimie Physique et Microbiologie pour l’Environnement, a joint research unit between the Université de Lorraine and the CNRS. He joined the CNRS in 2011 after spending 9 years at the Tyndall National Institute (Cork) as a PhD student, post-doc and staff researcher. His research interests are the development of electrochemical sensors and the investigation of charge transfer reaction at the liquid-liquid interface.


Tea/coffee will be available at 11h45.

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