Dr. Joshua L. Hertz

Assistant Professor
Department of Mechanical Engineering
University of Delaware
329 Spencer Lab
Newark, DE 19716

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Executive Summary

Prof. Joshua Hertz earned a B.S. in Ceramic Engineering from Alfred University in 1999 and then a Ph.D. in Materials Science and Engineering from the Massachusetts Institute of Technology in 2006. His thesis was on the topic of thin films for micro solid oxide fuel cells, with discoveries in the processing of nanocomposites and the electrochemical effects of surface impurities. Following this, he worked at the National Institute of Standards and Technology where he was awarded a postdoctoral fellowship by the National Research Council. His postdoctoral work was on metal oxide chemical sensors built on microhotplates. He joined the Department of Mechanical Engineering at the University of Delaware as an Assistant Professor in September 2008. He now runs the Nanomaterials for Energy Lab, with funding from the University of Delaware Research Foundation, U.S. Department of Energy, and NASA. His current research is focused on gaining a fundamental understanding of the role that composition and nano/microstructure plays in determining ionic conduction and surface exchange in ceramic materials, with additional work examining similar topics in polymer fuel cells, thin film batteries, and tribofilms.

Key Publications

J.L. Hertz, H.L. Tuller, Micro-Fuel Cells, in Microfabricated Power Generation Devices: Design and Technology, editors: P.I. Barton and A. Mitsos, Wiley-VCH (2009).

J.L. Hertz, A. Rothschild, H.L. Tuller, Highly enhanced electrochemical performance of silicon-free platinum/yttria stabilized zirconia interfaces, J. Electroceramics, 22, p. 428 (2009).

W.C. Jung, J.L. Hertz, H.L.Tuller, Enhanced ionic conductivity and phase meta-stability of nano-sized thin film yttria-doped zirconia, Acta Mater., 57, p. 1399 (2009).

B. Raman, J.L. Hertz, K. D. Benkstein, S. Semancik, Bioinspired methodology for artificial olfaction, Anal. Chem., 80, p. 8364 (2008).

C.D. Baertsch, et al., Fabrication and structural characterization of self-supporting electrolyte membranes for a micro-solid oxide fuel cell, J. Mater. Res., 19, p. 2604 (2004).

Research Areas

Clean Energy
Fuel cells; Solid oxide fuel cells; Thin film batteries; TiO2-based solar cells

Thin film growth; Physical vapor deposition; Nanocomposites; Multilayer and epitaxial oxides; Micro-power sources

Materials Engineering
Ceramic materials; Oxides; Powder processing; Thin film processing; Materials for microdevices

Fuel cells; advanced batteries; solar cells

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