Role of PVA in synthesis of nano Co3O4 decorated Graphene oxide Surekha S. Jogdand1, Abhishek Das2, Akshay Dhayagude1, Sudhir Kapoor2* and Satyawati S. Joshi1* . 1 Department of Chemistry, Savitribai Phule Pune University (Formerly University of Pune), Ganeshkhind, Pune – 411007, India 2 Radiation & Photochemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400 085, India Telephone: +91-020-25601394-573/569 Fax: +91-020-25691728 Prof. (Mrs.) Satyawati S. Joshi Department of Chemistry, Savitribai Phule Pune University, Ganeshkhind, Pune – 411007, India Telephone: +91-020-25601394-573/569 Fax: +91-020-25691728 E-mail: ssjoshi@chem.unipune.ac.in. Dr.Sudhir Kapoor Radiation & Photochemistry Division, Bhabha Atomic Research Centre,Trombay, Mumbai 400 085, India Email: sudhirk@barc.gov.in, Fax No.: (+)- 91-22-25505151, Tel. No.: (+)- 91-22-25590298 Intensity(a.u.) Supporting Information 200 400 600 800 1000 1200 1400 1600 1800 Raman shift(cm-1) Fig. S1 Raman spectrum of pyrolyzed PVA14000 gel A) B) (311) (220) (111) 10 20 30 Intensity(a.u.) Intensity(a.u.) (311) (400) 40 50 2Ɵ(degree) Fig. S2 XRD of A) 800PV14 and B) 800PV125 (111) 10 20 (220) 30 (400) 40 2Ɵ(degree) 50