12,000

We have over 12,000 students, from over 100 countries, within one of the safest campuses in the UK

93%

93% of Lancaster students go into work or further study within six months of graduating

Home > Research > Publications & Outputs > Pt dissolution and deposition in high concentra...
View graph of relations

« Back

Pt dissolution and deposition in high concentration aqueous tri-Iodide/iodide solutions

Research output: Contribution to journalJournal article

Published

Journal publication date17/08/2013
JournalECS Electrochemistry Letters
Journal number11
Volume2
Number of pages3
PagesD55-D57
Original languageEnglish

Abstract

The feasibility was demonstrated of Pt dissolution in neutral aqueous iodide / tri-iodide solutions, albeit requiring elevated temperatures, and of Pt electrodeposition from such solutions on to carbon, the cathode material to be used in the envisaged scaled process. Reduction of PtI62−(aq) was facile, producing PtI42−(aq) as a stable intermediate that could be further reduced to Pt by a much slower reaction. This system could form the basis of an environmentally benign, energy efficient process for the selective recovery of Pt from secondary materials. It is of importance that efficient recovery processes for strategic materials be developed as demand increases.