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Platinum Deposited Nitrogen-Doped Vertically Aligned Carbon Nanofibers as Methanol Tolerant Catalyst for Oxygen Reduction Reaction with Improved Durability
| Content Provider | MDPI |
|---|---|
| Author | Elangovan, Ayyappan Xu, Jiayi Sekar, Archana Rajendran, Sabari Liu, Bin Li, Jun |
| Copyright Year | 2021 |
| Description | Nitrogen doping in carbon materials can modify the employed carbon material’s electronic and structural properties, which helps in creating a stronger metal-support interaction. In this study, the role of nitrogen doping in improving the durability of Pt catalysts supported on a three-dimensional vertically aligned carbon nanofiber (VACNF) array towards oxygen reduction reaction (ORR) was explored. The nitrogen moieties present in the N-VACNF enhanced the metal-support interaction and contributed to a reduction in the Pt particle size from 3.1 nm to 2.3 nm. The Pt/N-VACNF catalyst showed better durability when compared to Pt/VACNF and Pt/C catalysts with similar Pt loading. DFT calculations validated the increase in the durability of the Pt NPs with an increase in pyridinic N and corroborated the molecular ORR pathway for Pt/N-VACNF. Moreover, the Pt/N-VACNF catalyst was found to have excellent tolerance towards methanol crossover. |
| Ending Page | 318 |
| Page Count | 16 |
| Starting Page | 303 |
| e-ISSN | 26733501 |
| DOI | 10.3390/applnano2040022 |
| Journal | Applied Nano |
| Issue Number | 4 |
| Volume Number | 2 |
| Language | English |
| Publisher | MDPI |
| Publisher Date | 2021-10-17 |
| Access Restriction | Open |
| Subject Keyword | Applied Nano Environmental Engineering Vertically Aligned Carbon Nanofibers N-doped Vacnfs Oxygen Reduction Reaction Pt Catalysts Density Functional Theory |
| Content Type | Text |
| Resource Type | Article |
