Table · dataset · 2026
Intermetallic Passivation Imparts Corrosion Resistance and Enables Intrinsic Electrocatalytic Activity Promotion
Listed in ZivaHub and Deakin Research Online and DMU Figshare — shown once because both records carry DOI 10.1021/jacs.6c09853.s001
Electrocatalytic technologies are limited by reliance on precious metal catalysts with low activity.
Description
Intermetallics can alleviate these challenges but have limited efficacy due to corrosion susceptibility. Herein, we demonstrate that electrochemical cycling produces a near-surface Pd + Ge intermetallic with corrosion resistance far exceeding that of bulk PdGe.
Corrosion resistance is enhanced by the presence of more cationic Ge at the surface, which acts as an intermetallic passivation layer. This enhanced corrosion resistance enables the material to be utilized as an electrocatalyst under conditions where bulk PdGe rapidly corrodes. The material exhibits exceptional activity for O<sub>2</sub> reduction, which is enhanced by roughly an order of magnitude compared to Pd on a per Pd surface atom basis.
Read the rest (1 more)
Density functional theory suggests that activity promotion occurs via electronic and bifunctional effects. This work demonstrates that electrochemical near-surface alloying can produce remarkably corrosion resistant materials with superior electrocatalytic activity despite a reduced precious metals content.
Links
Where it is published
- DOI doi.org/10.1021/jacs.6c09853.s001 ↗
DOI / persistent id · from zivahub uct ac za
Catalogue records · 1
- OAI-PMH record api.figshare.com/v2/oai?verb=GetRecord&metadataPrefix=oai_dc&identifier=oai%3Af… ↗
metadata API · from zivahub uct ac za
Topics
- From keywords
- Astronomy & Astrophysics · Astronomy & Astrophysics · Astronomy & Astrophysics · Earth & Environmental Science · Earth & Environmental Science · Earth & Environmental Science · Evolutionary biology · Evolutionary biology · Evolutionary biology · Life Sciences · Life Sciences · Life Sciences · Mathematics & Statistics · Mathematics & Statistics · Mathematics & Statistics · Research, science and technology policy · Research, science and technology policy · Research, science and technology policy
- Inferred from text
- Density functional theory 75%
Provenance · 3 source records, 24 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| ZivaHub | oai:figshare.com:article/34033189 | 11 d ago | JSON v1 |
| Deakin Research Online | oai:figshare.com:article/34033189 | 11 d ago | JSON v1 |
| DMU Figshare | oai:figshare.com:article/34033189 | 11 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · zivahub uct ac za | connector:zivahub_uct_ac_za@1.0.0 | |
| concepts[field].anzsrc:field:440710 | mapping · dro deakin edu au | vocabulary-mapper@1.0.0 | keywords['Science Policy'] |
| concepts[field].anzsrc:field:440710 | mapping · figshare dmu ac uk | vocabulary-mapper@1.0.0 | keywords['Science Policy'] |
| concepts[field].anzsrc:field:440710 | mapping · zivahub uct ac za | vocabulary-mapper@1.0.0 | keywords['Science Policy'] |
| concepts[field].anzsrc:group:3104 | mapping · zivahub uct ac za | vocabulary-mapper@1.0.0 | keywords['Evolutionary Biology'] |
| concepts[field].anzsrc:group:3104 | mapping · figshare dmu ac uk | vocabulary-mapper@1.0.0 | keywords['Evolutionary Biology'] |
| concepts[field].anzsrc:group:3104 | mapping · dro deakin edu au | vocabulary-mapper@1.0.0 | keywords['Evolutionary Biology'] |
| concepts[field].local:field:astronomy | mapping · figshare dmu ac uk | connector:figshare_dmu_ac_uk@1.0.0 | |
| concepts[field].local:field:astronomy | mapping · zivahub uct ac za | connector:zivahub_uct_ac_za@1.0.0 | |
| concepts[field].local:field:astronomy | mapping · dro deakin edu au | connector:dro_deakin_edu_au@1.0.0 | |
| concepts[field].local:field:earth-environmental | mapping · figshare dmu ac uk | connector:figshare_dmu_ac_uk@1.0.0 | |
| concepts[field].local:field:earth-environmental | mapping · dro deakin edu au | connector:dro_deakin_edu_au@1.0.0 | |
| concepts[field].local:field:earth-environmental | mapping · zivahub uct ac za | connector:zivahub_uct_ac_za@1.0.0 | |
| concepts[field].local:field:life-sciences | mapping · dro deakin edu au | connector:dro_deakin_edu_au@1.0.0 | |
| concepts[field].local:field:life-sciences | mapping · zivahub uct ac za | connector:zivahub_uct_ac_za@1.0.0 | |
| concepts[field].local:field:life-sciences | mapping · figshare dmu ac uk | connector:figshare_dmu_ac_uk@1.0.0 | |
| concepts[field].local:field:mathematics-statistics | mapping · zivahub uct ac za | connector:zivahub_uct_ac_za@1.0.0 | |
| concepts[field].local:field:mathematics-statistics | mapping · dro deakin edu au | connector:dro_deakin_edu_au@1.0.0 | |
| concepts[field].local:field:mathematics-statistics | mapping · figshare dmu ac uk | connector:figshare_dmu_ac_uk@1.0.0 | |
| concepts[method].local:method:dft | enrichment · zivahub uct ac za | keyword-concept-rules@1.0.0 | title+description (75%) |
| description | source · zivahub uct ac za | connector:zivahub_uct_ac_za@1.0.0 | /metadata/dc/description |
| license | source · zivahub uct ac za | connector:zivahub_uct_ac_za@1.0.0 | /metadata/dc/rights |
| publication_date | source · zivahub uct ac za | connector:zivahub_uct_ac_za@1.0.0 | |
| title | source · zivahub uct ac za | connector:zivahub_uct_ac_za@1.0.0 | /metadata/dc/title |