In the seminar of Thursday June 6th at 16:00 CET Prof. Umit B. Demirci deliveres an interesting talk on “BH, BNH and BNCH materials”.

 LINK: https://us06web.zoom.us/j/85133470601?pwd=b40WDpc04Elpkl8S9jlUYKXjDMcTp4.1

 

Meeting-ID: 851 3347 0601
Kenncode: 358425

  

 

BH, BNH and BNCH materials

Umit B. DEMIRCI
University of Montpellier, France

 

Abstract:
More than two decades ago, BH and BNH materials were rediscovered in the context of the announced energy transition. A typical example of BH materials is sodium borohydride NaBH4, which carries 10.8 wt% of hydrogen and can spontaneously produce molecular hydrogen by hydrolysis at 20 °C. A typical example of BNH material is ammonia borane NH3BH3; it is made up of three protic hydrogens and three hydride hydrogens that interact at 80-100°C to produce molecular hydrogen; this is then called thermolysis or thermolytic dehydrogenation. It is in this context that our research activities on BH and BNH materials, and later BNCH materials, were launched in 2005. We have focused on their synthesis, complete characterization and property evaluation for hydrogen storage mainly. We have also explored other applications such as liquid fuel cells, which led us to explore closoboranes such as dodecaborane Na2B12H12 (another BH material) and borocarbonitrides which were developed by nanostructuring amine boranes (i.e. BNCH materials). This seminar will therefore be an opportunity for me to give you an overview of our BH, BNH and BNCH materials, while emphasizing their (nano-)structuring which allows the production of porous ceramics and could allow the production of nanostructured thin films.

 

HB11 S2.8 photo DEMIRCI

Umit B. Demirci,educated at the University of Strasbourg (France) earned a PhD in physical chemistry, specializing in heterogeneous catalysis, in 2002. Then, through various experiences from 2002 to 2007, he gained experience as a research engineer and postdoctoral fellow, working on catalysis applied to automotive exhaust gas post-treatment, fuel cells, and hydrogen production. In 2007, he obtained a permanent position of associate professor in materials chemistry at the University of Lyon 1 (France). He worked on chemistry and materials for energy, focusing on hydrogen (storage/production), inorganic (transition metals and their oxides) materials for catalysis, and especially boron-based hydrogen storage materials. In 2011, he transferred to the University of Montpellier 2 (France) as associate professor in materials chemistry. He kept the same research topics. Currently a professor at the University of Montpellier (since September 2015), his research focuses on boron chemistry, hydrogen storage using boron-containing materials, hydrogen purification (from ammonia), and boron-based materials for other applications such as DLFC fuels, energetic materials, and carbon dioxide capture and conversion. In parallel, he teaches undergraduate students at the Faculty of Sciences and the Department of Chemistry of the University of Montpellier. As of May 2024, he has co-authored and published over 160 articles in peer-reviewed international journals, delivered more than 30 presentations at international meetings, and co-supervised over 20 PhD students. Additionally, he serves on the editorial boards of scientific journals, including the International Journal of Hydrogen Energy.

 


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