1. Faculty of Applied Sciences Universiti Teknologi MARA Shah Alam Selangor 40450 Malaysia
2. NANO‐SciTech Centre, Institute of Science Universiti Teknologi MARA Shah Alam Selangor 40450 Malaysia
3. Fuel Cell Institute (SELFUEL) Universiti Kebangsaan Malaysia Bangi Selangor 43600 Malaysia
4. School of Chemical and Process Engineering, Faculty of Engineering and Built Environment Universiti Kebangsaan Malaysia Bangi Selangor 43600 Malaysia
5. NANO‐Electronic Centre, Faculty of Electrical Engineering Universiti Teknologi MARA Shah Alam Selangor 40450 Malaysia