1. School of Energy and Chemical Engineering, Xiamen University Malaysia, Sepang 43900, Selangor Darul Ehsan, Malaysia
2. Center of Excellence for NaNo Energy & Catalysis Technology (CONNECT), Xiamen University Malaysia, Sepang 43900, Selangor Darul Ehsan, Malaysia
3. State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
4. Center of Nanotechnology and Advanced Materials, Faculty of Science and Engineering, University of Nottingham Malaysia Campus, Jalan Broga, Semenyih 43500, Selangor, Malaysia
5. Centre for Functional Materials and Nanotechnology, Universiti Teknologi MARA Shah Alam, Shah Alam 40450, Selangor, Malaysia
6. Electrochemical Materials and Sensor (EMaS) Research Group, Faculty of Applied Sciences, Universiti Teknologi MARA Shah Alam, Shah Alam 40450, Selangor, Malaysia
7. Low Dimensional Materials Research Center, Department of Physics, Faculty of Science, University Malaya, Kuala Lumpur 50603, Malaysia