1. School of Energy and Chemical Engineering Xiamen University Malaysia Selangor Darul Ehsan 43900 Malaysia
2. Center of Excellence for NaNo Energy & Catalysis Technology (CONNECT) Xiamen University Malaysia Selangor Darul Ehsan 43900 Malaysia
3. State Key Laboratory of Physical Chemistry of Solid Surfaces College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 P. R. China
4. Shenzhen Research Institute of Xiamen University Shenzhen 518057 P. R. China