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Nb-doped $TiO_{2}$ support with enhanced durability as a cathode for polymer electrolyte membrane fuel cells
| Content Provider | Scilit |
|---|---|
| Author | Choi, Hyeonji Kim, Jutae Lee, Gibaek Tak, Yongsug |
| Copyright Year | 2019 |
| Description | Journal: Nanotechnology Stability is one of the key requirements of electrocatalyst support materials for polymer electrolyte membrane fuel cells (PEMFCs). To develop a highly stable Pt catalyst support material, in this work, we have synthesized Nb-doped TiO2 electrocatalyst supports. The amount of Nb dopant is measured using inductively coupled plasma mass spectrometry, while the characteristics of the as-prepared Nb-doped TiO2 supports are analyzed by transmission electron microscopy, X-ray diffraction, and X-ray photoelectron spectroscopy. Durability experiments are conducted by high potential cycling using the as-prepared Pt/TiO2-Nbx materials; half-cell cyclic voltammetry and single-cell performance measurements reveal that Pt/TiO2-Nb4 shows superior durability and corrosion resistance with a degradation rate of only 20% while the performance of commercial Pt/C support decreased 55%. |
| Related Links | https://iopscience.iop.org/article/10.1088/1361-6528/ab4a3f/pdf |
| ISSN | 09574484 |
| e-ISSN | 13616528 |
| DOI | 10.1088/1361-6528/ab4a3f |
| Journal | Nanotechnology |
| Issue Number | 3 |
| Volume Number | 31 |
| Language | English |
| Publisher | IOP Publishing |
| Publisher Date | 2019-10-02 |
| Access Restriction | Open |
| Subject Keyword | Journal: Nanotechnology |
| Content Type | Text |
| Resource Type | Article |
| Subject | Chemistry Nanoscience and Nanotechnology Mechanics of Materials Mechanical Engineering Bioengineering Electrical and Electronic Engineering |
