- Abstract:
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The porosity of platinum nanoparticle aggregates (PtNPs) is investigated electrochemically via particle-electrode impacts and by XPS. The mean charge per oxidative transient is measured from nanoimpacts; XPS shows the formation of PtO and PtO2 in relative amounts defined by the electrode potential and an average oxidation state is deduced as a function of potential. The number of platinum atoms oxidised per PtNP is calculated and compared with two models: solid and porous spheres, within whic...
Expand abstract - Publication status:
- Published
- Peer review status:
- Peer reviewed
- Version:
- Accepted Manuscript
- Files:
-
-
(pdf, 1.2mb)
-
- Publisher copy:
- 10.1039/C7CP01737E
-
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- Publisher:
- Royal Society of Chemistry Publisher's website
- Journal:
- Physical Chemistry Chemical Physics Journal website
- Volume:
- 19
- Issue:
- 21
- Pages:
- 13547-13552
- Publication date:
- 2017-05-10
- Acceptance date:
- 2017-05-09
- DOI:
- EISSN:
-
1463-9084
- ISSN:
-
1463-9076
- Pubs id:
-
pubs:693918
- URN:
-
uri:a31f4005-85fa-4fd9-9949-7d5c191b9786
- UUID:
-
uuid:a31f4005-85fa-4fd9-9949-7d5c191b9786
- Local pid:
- pubs:693918
- Paper number:
- 21
- Copyright holder:
- Jiao et al.
- Copyright date:
- 2017
- Notes:
-
This is the accepted manuscript version of the article. The final version is available online from the Royal Society of Chemistry at: https://doi.org/10.1039/C7CP01737E
Journal article
Understanding nanoparticle porosity via nanoimpacts and XPS: electro-oxidation of platinum nanoparticle aggregates
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