February 12, 2002
Journal Article

Structural and chemical characterization of aligned crystalline nanoporous MgO films grown via reactive ballistic deposition

Abstract

Highly-porous (~ 90%), high-surface area (~ 1000 m2/g), thermally stable (1200 K) crystalline films of MgO are synthesized using a novel reactive ballistic deposition technique. The film consists of a tilted array of porous nanoscale crystalline filaments. Surprisingly, the individual filaments exhibit a high degree of crystallographic order with respect to each other. These films have chemical binding sites analogous to those on MgO(100). However the fraction of chemically active, high energy binding sites is greatly enhanced on the nanoporous film. This unique collection of properties makes these materials attractive candidates for chemical applications such as sensors and heterogeneous catalysts.

Revised: January 8, 2009 | Published: February 12, 2002

Citation

Dohnalek Z., G.A. Kimmel, D.E. McCready, J.A. Young, A. Dohnalkova, R.S. Smith, and B.D. Kay. 2002. "Structural and chemical characterization of aligned crystalline nanoporous MgO films grown via reactive ballistic deposition." Journal of Physical Chemistry B 106, no. 14:3526-3529. PNNL-SA-34845. doi:10.1021/jp013801c