Nitrogen-Doped Carbon as a Pt Support for Oxygen Reduction...
Fri, Sep 27
1:30 PM — 2:30 PM
Steinman Hall 312
The ChE Department would like to welcome Sujan Shrestha from the Univ. of ConnecticutTitle:
Nitrogen-Doped Carbon as a Pt Support for
Oxygen Reduction Reaction
Electrochemical applications of carbon are wide and varied. It is used as electrode for batteries, capacitors and proton exchange membrane fuel cells (PEMFCs). In PEMFCs, Pt/carbon black is the standard catalyst. However, we need alternative catalyst support to enhance the activity of Pt. One of the candidates is carbon doped with nitrogen heteroatoms. Nitrogen-doped carbon support has improved catalyst size distribution. But, the role of nitrogen is not well-understood. In this talk, I will discuss the promises and challenges of nitrogen-doped carbon as a Pt support. Then, I will present my work on the effect of microstructure and nitrogen content of nitrogen-doped carbon on the oxygen reduction activity of Pt.
Sujan Shrestha graduated from Fairleigh Dickinson University with B.S. in Chemistry in 2008 (Summa Cum Laude). Then he joined Chemical Engineering program at University of Connecticut as a PhD student. His research focuses on nitrogen-doped carbon for electrochemical applications. So far, Sujan’s work has resulted 4 peer-reviewed journal publications as first author, 4 peer-reviewed journal publications as a second author, one review article and one book chapter.