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| Content Provider | Springer Nature Link |
|---|---|
| Author | Terrazas Rodríguez, J. E. Gutiérrez Granados, S. Alatorre Ordaz, M. A. Ponce de León, C. Walsh, F. C. |
| Copyright Year | 2010 |
| Abstract | The reduction of palladium, rhodium and neodymium ions at concentrations of 0.94, 0.97 and 0.69 mol dm$^{−3}$, respectively was studied in 1 mol dm$^{−3}$ HNO$_{3}$ or 1 mol dm$^{−3}$ HCl, at a stainless steel and a vitreous carbon electrode, at 25 °C. At a vitreous carbon electrode in a solution containing rhodium and palladium ions in 1 mol dm$^{−3}$ HCl electrolyte, the reduction of metal ions occurred at a similar potential to the formation of hydrogen gas, which impeded the selective separation of the two metals. At a stainless steel cathode in 1 mol dm$^{−3}$ HNO$_{3}$, palladium deposition occurred at a potential ≈0.35 V less negative than that of rhodium allowing the selective recovery of palladium. Neodymium ions were not electroactive in acidic chloride or nitrate media at pH 0. Using a solution obtained from a catalytic converter manufacturer containing palladium, rhodium and neodymium ions in 1 mol dm$^{−3}$ HNO$_{3}$, palladium ions were preferentially removed at 0.15 V versus SHE at an average cumulative current efficiency of 57%. |
| Starting Page | 89 |
| Ending Page | 97 |
| Page Count | 9 |
| File Format | |
| ISSN | 0021891X |
| Journal | Journal of Applied Electrochemistry |
| Volume Number | 41 |
| Issue Number | 1 |
| e-ISSN | 15728838 |
| Language | English |
| Publisher | Springer Netherlands |
| Publisher Date | 2010-09-28 |
| Publisher Place | Dordrecht |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Catalytic converters Metal recovery Neodymium Platinum group metals Palladium Rhodium Rotating cylinder electrode Industrial Chemistry/Chemical Engineering Physical Chemistry Electrochemistry |
| Content Type | Text |
| Resource Type | Article |
| Subject | Materials Chemistry Chemical Engineering Electrochemistry |
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