Cupric chloride is used as oxidant to synthesize polypyrrole doped with inorganic mineral (ImDPpy). The formation of ImDPpy was confirmed by (HNMR)-H-1, BET, SEM, HRTEM, DSC, FTIR, Raman, XRD, UV-vis and XPS studies. The surface area calculated for ImDPpy is 36.671 m(2)/g. Surface area of IMDPpy is 4.671 m(2)/g higher than the reported value of Ppy in the literature. In DSC, ImDPpy display a peak at 88.07 degrees C (endothermic glass transition temperature, Tg), Tg of ImDPpy is almost identical to that of Ppy-MWCNT composite and is higher than Tg of undoped Ppy. Electrochemical analysis of ImDPpy in 0.01 M NaOH indicated the maximum charge stored in ImDPpy in the form of protons as 8090 mF/g. The maximum hydrogen storage capacity of ImDPpy is found to be 18mAh/g at an applied current density of 1 mA/cm(2). The mineral doped in Ppy during polymerization is identified as [Cu-2(OH)(3)Cl] from XPS and Raman analysis. (C) 2019 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.