Table · dataset · 2026
<b>Corrosion Behavior of CeOx-Pd/C HOR Catalyst in Alkaline Electrolyte</b>
Listed in figshare and Loughborough Research Repository — shown once because both records carry DOI 10.6084/m9.figshare.33289713.v1
<p dir="ltr">This contribution investigates the corrosion behavior (stability) of CeO<sub>x</sub>-Pd/C and Pd/C catalysts in 0.10 M aqueous KOH solution saturated with reactive (H<sub>2</sub> or O<sub>2</sub>) or neutral (N<sub>2</sub>) gases using potentiodynamic polarization (PDP).
Description
These catalysts are characterized by advanced electron microscopy, and the results demonstrate a uniform distribution of Pd and CeO<sub>x</sub>-Pd nanoparticles on the carbon support.
For comparative analysis, the corrosion parameters, namely the corrosion current and corrosion potential, <i>I</i><sub>corr</sub> and <i>E</i><sub>corr</sub>, are determined in the presence of N<sub>2</sub>(g) and O<sub>2</sub>(g) for the CeO<sub>x</sub>-Pd/C and Pd/C catalysts. An order of magnitude higher<i> I</i><sub>corr</sub> is obtained in the presence of O<sub>2</sub>(g) as compared to N<sub>2</sub>(g) in PDP anodic scans.
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Additionally, lower <i>I</i><sub>corr</sub> values are observed for the CeO<sub>x</sub>-Pd/C catalysts in anodic scans in the presence of both N<sub>2</sub>(diss) and O<sub>2</sub>(diss) as compared to the monometallic Pd/C, thus further highlighting its stability as a promising alkaline hydrogen oxidation reaction catalyst. Determination of <i>I</i><sub>corr</sub> and <i>E</i><sub>corr</sub> in the presence of H<sub>2</sub>(diss) is challenging due to the significantly high hydrogen oxidation current.
Interestingly, cyclic voltammograms recorded before and after the PDP measurements in the three gaseous environments show that the CeO<sub>x</sub>-Pd/C catalysts demonstrate better stability than Pd/C.</p>
Links
Where it is published
- DOI doi.org/10.6084/m9.figshare.33289713.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
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- Inferred from text
- Microscopy 75%
Provenance · 2 source records, 33 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| figshare | oai:figshare.com:article/33289713 | 4 d ago | JSON v1 |
| Loughborough Research Repository | oai:figshare.com:article/33289713 | 3 d ago | JSON v1 |
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|---|---|---|---|
| access_level | source · figshare com | connector:figshare_com@1.0.0 | |
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| concepts[field].anzsrc:field:340103 | mapping · repository lboro ac uk | vocabulary-mapper@1.0.0 | keywords['Electroanalytical chemistry'] |
| concepts[field].anzsrc:field:340604 | mapping · repository lboro ac uk | vocabulary-mapper@1.0.0 | keywords['Electrochemistry'] |
| concepts[field].anzsrc:field:340604 | mapping · figshare com | vocabulary-mapper@1.0.0 | keywords['Electrochemistry'] |
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| concepts[field].local:field:economics-finance | mapping · figshare com | connector:figshare_com@1.0.0 | |
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| 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 | source · figshare com | connector:figshare_com@1.0.0 | /metadata/dc/rights |
| publication_date | source · figshare com | connector:figshare_com@1.0.0 | |
| title | source · figshare com | connector:figshare_com@1.0.0 | /metadata/dc/title |