1. Energy Research & Technology Group, CSIR-Central Mechanical Engineering Research Institute, Durgapur 713209, West Bengal, India
2. School of Physical Sciences, Indian Association for the Cultivation of Science, Kolkata 700032, West Bengal, India
3. SUNCAT Center for Interface Science and Catalysis, Department of Chemical Engineering, Stanford University, Stanford, California 94305, United States
4. SUNCAT Center for Interface Science and Catalysis, SLAC National Accelerator Laboratory, Menlo Park, California 94025, United States
5. School of Materials Sciences, Indian Association for the Cultivation of Science, Kolkata 700032, West Bengal, India