1. Materials Sciences and Technology Division, CSIR-North East Institute of Science and Technology, Jorhat, Assam 785006, India
2. Department of Chemistry, Faculty of Science, Kyushu University 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
3. Coal and Energy Division, CSIR-North East Institute of Science and Technology, Jorhat, Assam 785006, India
4. Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
5. Biological Sciences and Technology Division, CSIR-North East Institute of Science and Technology, Jorhat, Assam 785006, India
6. Physical and Materials Chemistry Division, CSIR-National Chemical Laboratory, Dr Homi Bhabha Road, Pune, MH 411008, India