Data · dataset · 2025
Study of Mesostructured CeO2 Synthesis via Nanocasting Using SBA-15 as a Template: Influence of the Cerium Precursor
Listed in e-cienciaDatos
Mesoporous materials with high surface area, large pore volume, and adjustable pore size are promising in the fields of adsorption and heterogeneous catalysis.
Description
In this work, ordered meso-porous ceria structures were successfully prepared via nanocasting using SBA-15 as a template with Ce(NO3)3·6H2O or CeCl3·7H2O as ceria precursors. The materials were characterized before and after template removal.
CeO2 crystallite size in the CeO2/SBA-15 composites increases with successive impregnations until they reach the pore size of the SBA 15. Upon removal of the SBA-15 template, the synthesized materials exhibit pore diameters corresponding to the wall thickness of the SBA-15, evidencing that the inverted structure is obtained. Mesoporous ceria exhibits in-creasingly ordered structure up to 5 successive impregnations with 1.3 mmolCe/gSBA-15.
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Using ce-rium chloride as a precursor, highly ordered structures are reached after only 3 impregnations. The feasibility of this synthesis in fewer steps (1, 3, and 5) employing the same amount of Ce precursor (6.7 mmolCe/gSBA-15) was also studied. Results show a higher ordering degree and oxygen mobility capacity at higher impregnation steps.
The mesostructured ceria samples exhibit significantly higher oxygen mobility than commercial bulk ceria, along with high thermal stability, which high-lights the usefulness of these structures.
Links
Where it is published
- Dataverse dataset page edatos.consorciomadrono.es/dataset.xhtml?persistentId=doi%3A10.21950%2FO8CMEE ↗
landing page · from edatos consorciomadrono es
- DOI doi.org/10.21950/o8cmee ↗
DOI / persistent id · from edatos consorciomadrono es
Catalogue records · 1
- Dataverse API edatos.consorciomadrono.es/api/datasets/:persistentId/?persistentId=doi%3A10.21950%2FO8CM… ↗
metadata API · from edatos consorciomadrono es
Topics
- Stated by source
- Ingeniería · Química
- From keywords
- Chemistry
- Inferred from text
- Macromolecular and materials chemistry 74%
Provenance · 1 source records, 10 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| e-cienciaDatos | doi:10.21950/O8CMEE | 11 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| concepts[field].anzsrc:group:3403 | enrichment · edatos consorciomadrono es | taxonomy-embedding@1.1.0 | title+keywords+description (74%) |
| concepts[field].dataverse_subject:ingenier-a | source · edatos consorciomadrono es | connector:edatos_consorciomadrono_es@1.0.0 | /subjects |
| concepts[field].dataverse_subject:qu-mica | source · edatos consorciomadrono es | connector:edatos_consorciomadrono_es@1.0.0 | /subjects |
| concepts[field].local:field:chemistry | mapping · edatos consorciomadrono es | connector:edatos_consorciomadrono_es@1.0.0 | /subjects |
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