1. Department of Chemistry; Dibrugarh University; Dibrugarh - 786004, Assam India
2. Academy of Scientific and Innovative Research (AcSIR)-Central Salt and Marine Chemicals Research Institute; Council of Scientific and Industrial Research (CSIR), G. B. Marg; Bhavnagar 364002, Gujarat India
3. Nano catalysis, Catalytic Conversion and Process Division; AcSIR - Indian Institute of Petroleum, Mohkampur; Dehradun - 248005 India