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Exploring nanoparticle porosity using nano-impacts: platinum nanoparticle aggregates.

Abstract:

The porosity of platinum nanoparticles (PtNPs) is explored for the first time using tag-redox coulometry (TRC). This is achieved by monitoring the reduction of the 4-nitrobenzenethiol (NTP)-tagged PtNPs on carbon electrodes via both immobilisation and nanoimpacts. The average charge per impact is measured and attributed to the reduction of NTP adsorbed on individual PtNPs. The number of NTP molecules and thus the "active surface area" of the PtNPs is calculated and compared with two models: f...

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Publication status:
Published
Peer review status:
Peer reviewed
Version:
Accepted manuscript

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Publisher copy:
10.1039/c6cp07910e

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Department:
Oxford, MPLS, Chemistry, Physical & Theoretical Chem
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Department:
Oxford, MPLS, Chemistry, Physical & Theoretical Chem
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Department:
Oxford, MPLS, Chemistry, Physical & Theoretical Chem
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Department:
Oxford, MPLS, Materials
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Department:
St Johns College
Publisher:
Royal Society of Chemistry Publisher's website
Journal:
Physical Chemistry Chemical Physics Journal website
Publication date:
2016-12-05
Acceptance date:
2016-12-08
DOI:
ISSN:
1463-9084
Pubs id:
pubs:666030
URN:
uri:310b9c1d-0385-4bab-ac2e-223ff7c5796c
UUID:
uuid:310b9c1d-0385-4bab-ac2e-223ff7c5796c
Local pid:
pubs:666030
Language:
English
Keywords:

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