Summary: Material scientists and engineers are engaged in developing a variety of recipes for producing functional materials,
comprised of particles with uniform morphological features. There is a need to develop conditions for the synthesis
of a number of inorganic and ceramic systems in pure and in core-shell configurations comprising of monodispersed
particles. They are of great relevance and immense technological importance. For example, zinc oxide (ZnO) particles
of reasonable uniformity employed to fabricate planar chemical sensors for the detection of ethanol, ammonia, and
automobile exhaust gases have shown that the sensitivity and response/recovery time of these sensors were better
than those made with commercial ZnO powder. One of the objectives of this collaborative investigation was to
understand the role of starting precursors, experimental conditions and shape-modifying additives that control and
impart exotic morphologies. Another objective is to optimize the process parameters for higher yield. The technique
will be extended to double and higher oxides of relevance and direct impact in the renewable energy arena.
mstructural Evolution in Mono-shaped and Mono-sized
Functional Ceramics: Case Study of ZnO
Ikram Ul Haq* and Abdul-Majeed Azad
*National Center of Excellence in Physical Chemistry, University of Peshawar, Pakistan.
Department of Chemical Engineering, The University of Toledo, Toledo, OH 43606-3390.
RESULTS AND ANALYSES
Acknowledgement: The financial support to Professor Ikram Ul Haq under the auspices of Summer 2010 Visiting Faculty Researcher Program Award by the University of Toledo's Office of Research is gratefully acknowledged.