1. Department of Chemical Engineering; University of New Brunswick; Fredericton, E3B 5A3 NB Canada
2. Department of Chemistry; Northwest University; Xian, 710069 Shaanxi China
3. Atlantic Hydrogen Inc.; 420 Wilsey Road Fredericton, E3B 6E9 NB Canada
4. Institute of Materials and Processes, School of Engineering; University of Edinburgh; Mayfield Road Edinburgh, EH9 3JL UK