Synergetic electrochemical HNO3 reduction on the activated-CFP supported nano-Pt electrodes.

The electrochemical activated-CFP supported nano-Pt electrode was designed for degrading concentrated HNO 3. The influence of pre-thermal treatment of the activated-CFP on the electrodeposition of Pt was investigated, indicating that the decrease in surface oxygen content is beneficial to the electrodeposition of Pt nanoparticles. The nano-Pt/activated-CFP was directly used as a highly reactive electrode for electroreduction of HNO 3 , showing a high current density for the formation of ammonia ions. This study will provide a possibility for the electrochemical treatment of concentrated HNO 3 with the formation of low- and non-toxic byproducts. Unlabelled Image • The influence of pre-thermal treatment on the electrodeposition of Pt was investigated. • The Pt/activated-CFP was applied to the electrocatalytic reduction of concentrated HNO 3. • It shows a high reactivity towards the formation of ammonia ions. [ABSTRACT FROM AUTHOR]