1. Materials
and Process Simulation Center (M/C 139-74), California Institute of Technology, 1200 East California Boulevard, Pasadena, California 91125, United States
2. Chemistry
Department, Brookhaven National Laboratory, Upton, New York 11973, United States
3. Department
of Materials Science and Engineering, National Chiao Tung University, Hsin-Chu 300, Taiwan ROC
4. Department
of Chemical Engineering, California State University, Long Beach, California 90840, United States