Edgeless Ag-Pt Bimetallic Nanocages: In Situ Monitor Plasmon-Induced Suppression of Hydrogen Peroxide Formation
| Autor: | Tzu-Yu Liao, Hao Ming Chen, Chia-Shuo Hsu, Shih-Yun Chiu, Sheng-Chih Lin |
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| Rok vydání: | 2017 |
| Předmět: |
In situ
Nanotechnology 02 engineering and technology General Chemistry 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Biochemistry Peroxide Catalysis 0104 chemical sciences chemistry.chemical_compound Colloid and Surface Chemistry Hydrogen peroxide formation Nanocages chemistry 0210 nano-technology Hot electron Bimetallic strip Plasmon |
| Zdroj: | Journal of the American Chemical Society. 139(6) |
| ISSN: | 1520-5126 |
| Popis: | Improvements in the performance of electrocatalysts, along with continuing advances in selective pathway for target reaction, have great potential to offer opportunities in designing competitive reactions especially for using a photophysical process owing to its tunable properties. Herein, we demonstrated a first empirical evidence of suppressing the formation of undesired peroxide intermediate through plasmonic effects, in which plasmonic Ag-Pt bimetallic nanocages were synthesized with an edgeless feature, and a custom-made RDE/RRDE working station was designed to provide unique means by which to in situ realize the plasmon-induced effects toward the target reaction. The edgeless Ag-Pt bimetallic nanocages with hollow interior performed newly plasmon-induced effects, which was characteristic of photodependent nature to suppress the formation of undesired peroxide intermediate. We concluded that the plasmon-induced hot electron transfer governed the suppression of peroxide formation instead of plasmon-induced heating that would cause a negative effect (i.e., increase of peroxide yield), in which the hot electron transfer of Ag nanostructure offered a sufficient energy to populate the antibonding orbital of O |
| Databáze: | OpenAIRE |
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