Deng, Y. J.; Wiberg, Gustav; Zana, Alessandro; Sun, S. G.; Arenz, Matthias (2017). Tetrahexahedral Pt Nanoparticles: Comparing the Oxygen Reduction Reaction under Transient vs Steady-State Conditions. ACS Catalysis, 7(1), pp. 1-6. American Chemical Society 10.1021/acscatal.6b02201
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In this work, we have synthesized tetrahexahedral (THH) Pt nanoparticles (NPs) enclosed with {730} high-index facets using a one-step square wave potential procedure. The catalytic activity of the THH NPs toward the oxygen reduction reaction (ORR) is studied under both transient and steady-state conditions. As a benchmark, the ORR activity is compared with those of polycrystalline Pt and a commercial Pt/C catalyst. The results show that, under transient conditions, the catalytic performance of the THH Pt NPs and Pt/C are approximately the same and about 2 times lower than that of polycrystalline Pt. However, under steady-state conditions the THH Pt NPs perform considerably better than Pt/C. Under steadystate conditions THH Pt NPs are even slightly more active than polycrystalline Pt.
Item Type: |
Journal Article (Original Article) |
|---|---|
Division/Institute: |
08 Faculty of Science > Department of Chemistry, Biochemistry and Pharmaceutical Sciences (DCBP) |
UniBE Contributor: |
Wiberg, Gustav Karl Henrik, Zana, Alessandro, Arenz, Matthias |
Subjects: |
500 Science > 570 Life sciences; biology 500 Science > 540 Chemistry |
ISSN: |
2155-5435 |
Publisher: |
American Chemical Society |
Language: |
English |
Submitter: |
Matthias Arenz |
Date Deposited: |
16 Apr 2018 16:11 |
Last Modified: |
02 Mar 2023 23:30 |
Publisher DOI: |
10.1021/acscatal.6b02201 |
Related URLs: |
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Web of Science ID: |
000391783200001 |
Additional Information: |
Notes: Eh4zu Times Cited:3 Cited References Count:61 |
Uncontrolled Keywords: |
thh pt nanoparticles oxygen reduction reaction steady-state conditions high-index facets shape-controlled synthesis deep eutectic solvents automotive fuel-cells platinum nanocrystals alloy electrocatalysts anisotropic growth alkaline-solution pemfc catalysts pt-catalysts |
BORIS DOI: |
10.7892/boris.111624 |
URI: |
https://boris.unibe.ch/id/eprint/111624 |
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