Table · dataset · 2026
Data for Evaluating Pt Nanoparticle Electrocatalyst Stability under High Anodic Potential Accelerated Stress Test Conditions Using Identical-Location TEM
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Probing platinum (Pt) nanoparticle (NP) stability, free from convolution with corrosion of the underlying carbon support, under the start-stop conditions of a proton exchange membrane fuel cell, is challenging.
Description
To address this problem with a focus on tracking NP morphology changes, we use identical-location transmission electron microscopy, in combination with corrosion-resistant, electron-transparent, boron-doped diamond electrodes.
Automated image analysis is developed to enable faster and easier processing. Information concerning NP area, positional changes, and relationship to nearest neighbor distance is extracted on an NP-by-NP basis by tracking the same NPs, pre- and post-accelerated stress testing in perchloric acid under conditions which promote carbon corrosion for sp2 carbons. Measurements are made in several locations with ca. 200 NPs analyzed per image.
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A significant fraction of the NPs, 40%–50%, are found to be area stable, with only a small number growing and the remaining decreasing very slightly in area (less than a single atom layer) due to transient dissolution. The average distance of travel of an NP after accelerated stress testing is ∼0.36 nm (n = 545). This data highlights both the stability of the Pt-BDD interaction and the potential for BDD use as an electrocatalyst support, under high anodic potentials.<br><br>This archive will cover all relevant raw data, code, and licenses for "Evaluating Pt Nanoparticle Electrocatalyst Stability under High Anodic Potential Accelerated Stress Test Conditions Using Identical-Location TEM" paper to be submitted
Links
Where it is published
- DOI doi.org/10.82444/warw.33907171.v1 ↗
DOI / persistent id · from figshare com
Catalogue records · 1
- OAI-PMH record api.figshare.com/v2/oai?verb=GetRecord&metadataPrefix=oai_dc&identifier=oai%3Af… ↗
metadata API · from figshare com
Topics
- From keywords
- Astronomy & Astrophysics · Chemistry · Computer Science & AI · Earth & Environmental Science · Economics & Finance · Engineering · Humanities · Life Sciences · Medicine & Health · Ocean & Atmospheric Science · Social Science
- Inferred from text
- Image 75% · Microscopy 75% · Nanoscale characterisation 76%
Provenance · 1 source records, 18 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| figshare | oai:figshare.com:article/33907171 | 10 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| concepts[field].anzsrc:field:401810 | enrichment · figshare com | taxonomy-embedding@1.0.0 | title+keywords+description (76%) |
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| concepts[field].local:field:chemistry | mapping · figshare com | connector:figshare_com@1.0.0 | |
| concepts[field].local:field:computer-science-ai | mapping · figshare com | connector:figshare_com@1.0.0 | |
| concepts[field].local:field:earth-environmental | mapping · figshare com | connector:figshare_com@1.0.0 | |
| concepts[field].local:field:economics-finance | mapping · figshare com | connector:figshare_com@1.0.0 | |
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| concepts[field].local:field:humanities | mapping · figshare com | connector:figshare_com@1.0.0 | |
| concepts[field].local:field:life-sciences | mapping · figshare com | connector:figshare_com@1.0.0 | |
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| concepts[field].local:field:ocean-atmospheric | mapping · figshare com | connector:figshare_com@1.0.0 | |
| concepts[field].local:field:social-science | mapping · figshare com | connector:figshare_com@1.0.0 | |
| concepts[modality].local:modality:image | enrichment · figshare com | keyword-concept-rules@1.0.0 | title+description (75%) |
| concepts[modality].local:modality:microscopy | enrichment · figshare com | keyword-concept-rules@1.0.0 | title+description (75%) |
| description | source · figshare com | connector:figshare_com@1.0.0 | /metadata/dc/description |
| license_text | source · figshare com | connector:figshare_com@1.0.0 | |
| publication_date | source · figshare com | connector:figshare_com@1.0.0 | |
| title | source · figshare com | connector:figshare_com@1.0.0 | /metadata/dc/title |