mullen.126@chemistry.ohio-state.edu
My current research focuses on the development of a platinum replacement electrode for oxygen sensors or fuel cells. The electrode material is Lanthanum Strontium Aluminum Manganite (LSAM), a derivative of lanthanum strontium manganite (LSM), a common electrode material using in conjunction with YSZ. LSAM is made by microwave synthesis and is joined to YSZ by a low temperature hot pressing method whereby a steady state increase in force is applied to join materials by plastic deformation. Characteristics of the joint include low joining temperatures and a pore free junction without use of a green interlayer. Electrical and ionic characterization of LSAM is ongoing as is its testing with YSZ as an oxygen sensor as shown below.
Oxygen Sensor set up using a joined sample in a quartz tube
Vita
2006 – 2012 B.A. Chemistry (ACS Certified), College of Wooster
2010 – 2012 Graduate Teaching Assistant , Department of Chemistry, The Ohio State University
2012 – Present Graduate Research Assistant , Department of Chemistry, The Ohio State University
Publications
1) Bonvallet, P. A.; Mullen, M. R.; Evans, P. J.; Stoltz, K. L.; Story, E. N. Improved functionality and control in the isomerization of a calix[4]arene-capped azobenzene. Tetrahedron Lett. 2011, 52, 1117-1120.