Please use this identifier to cite or link to this item:
http://hdl.handle.net/10397/88181
| Title: | Atomically deviated Pd-Te nanoplates boost methanol-tolerant fuel cells | Authors: | Zhang, Y Huang, BL Luo, G Sun, T Feng, YG Wang, YC Ma, YH Shao, Q Li, YF Zhou, ZY Huang, XQ |
Issue Date: | 29-Jul-2020 | Source: | Science advances, 29 July 2020, v. 6, no. 31, eaba9731, p. 1-9 | Abstract: | The methanol crossover effect in direct methanol fuel cells (DMFCs) can severely reduce cathodic oxygen reduction reaction (ORR) performance and fuel efficiency. As a result, developing efficient catalysts with simultaneously high ORR activity and excellent antipoisoning methanol capability remains challenging. Here, we report a class of Pd-Te hexagonal nanoplates (HPs) with a Pd20Te7 phase that simultaneously overcome the activity and methanol-tolerant issues in alkaline DMFC. Because of the specific arrangement of Pd atoms deviated from typical hexagonal close-packing, Pd-Te HPs/C displays extraordinary methanol tolerance with high ORR performance compared with commercial Pt/C. DFT calculations reveal that the high performance of Pd-Te HPs can be attributed to the breakthrough of the linear relationship between OOH* and OH* adsorption, which leaves sufficient room to improve the ORR activity but suppresses the methanol oxidation reaction. The concurrent high ORR activity and excellent methanol tolerance endow Pd-Te HPs as practical electrocatalysts for DMFC and beyond. | Publisher: | American Association for the Advancement of Science (AAAS) | Journal: | Science advances | ISSN: | 2375-2548 | DOI: | 10.1126/sciadv.aba9731 | Rights: | Copyright © 2020 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC)(https://creativecommons.org/licenses/by-nc/4.0/). This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial license (https://creativecommons.org/licenses/by-nc/4.0/), which permits use, distribution, and reproduction in any medium, so long as the resultant use is not for commercial advantage and provided the original work is properly cited. The following publication Zhang, Y., Huang, B. L., Luo, G., Sun, T., Feng, Y. G., Wang, Y. C., . . . Huang, X. Q. (2020). Atomically deviated Pd-Te nanoplates boost methanol-tolerant fuel cells. Science Advances, 6(31), 1-9 is available at https://dx.doi.org/10.1126/sciadv.aba9731 |
| Appears in Collections: | Journal/Magazine Article |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| Zhang_Atomically_Deviated_Pd-Te.pdf | 4.36 MB | Adobe PDF | View/Open |
Access
View full-text via PolyU eLinks 
Page views
45
Last Week
0
0
Last month
Citations as of Jun 4, 2023
Downloads
5
Citations as of Jun 4, 2023
SCOPUSTM
Citations
49
Citations as of Jun 8, 2023
WEB OF SCIENCETM
Citations
48
Citations as of Jun 8, 2023
Google ScholarTM
Check
Altmetric
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.