This work reports, for the first time, the sintering of the thermally decomposable lead dioxide at a temperature lower than 290 °C.
Such low-temperature processing is necessary to avoid the transformation of the conductive lead dioxide to the non-conductive
lead oxides via the well-known thermal decomposition processes of lead oxides. Such sintering process provides an important
opportunity to find a way toward an efficient and cost-effective alternative for platinum electrodes for the electrochemical
applications. It has been found that 90% of the theoretical density can be achieved, for lead dioxide body, via cold sintering
process with the help of minor additives of saturated lead nitrate solution and 2 M hydrochloric acid solution. The different
characterization analyses could not detect any undesirable phase, while the cyclic voltametery, BET, and the contact angle tests
confirmed the suitability of the synthesized body for the electrochemical applications.


Keywords Lead dioxide . PbO2 . Cold sintering . Electrodes . Platinum . Thermal decomposition