B.Sc. (Hons), National University of Singapore, 1987; Ph.D. National University of Singapore, 1993.
Tel: (65)-6516-8031 | Fax: (65)-6779-1691
Our research focuses on the fabrication and applications of nanostructures and their hybrids. We explore methodologies to synthesize size-, morphology- and phase-controllable nanomaterials, and to fabricate them into heterostructured or hybrid materials for specific applications. Current projects include synthesis of doped and layered oxide/hydroxide nanocomposites for energy, sensor and photocatalytic applications.
Ref: Loh, P. Y.; Lee, K K.; Ng, Y.; Sow, C. H.; Chin, W. S., Co/Al Layered Double Hydroxides Nanostructures: A Binderless Electrode for Electrochemical Capacitor. Electrochem. Commun. 2014, 43, 9–12.
We prepare Co/Al layered double hydroxides (LDH) nanoflakes supported on Co nanowires as a binderless electrode for electrochemical capacitor. This is the first report AAO template is used as a source of Al3+ to form the LDH directly. Capacitance was found to increase with the amount of Co/Al-LDH. This content is controllable by varying the duration of alkaline treatment. High capacitance of 0.510 F/cm2 was achieved for sample containing 12% Al measured at current density 2.5 mA/cm2 in 1 M KOH. The electrodes also exhibited good stability, maintaining more than 90% of their original capacitance after 3000 continuous charge–discharge cycles.