Data · dataset · 2023
Catalytic combustion of toluene over cerium modified CuMn/Al2O3/cordierite monolithic catalyst
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X-ray diffraction (XRD) patterns from 5 to 85° were performed on Rigaku D/Max 2500 instrument equipped with X-ray source of Cu-Kα (λ=1.54056 Å).
Description
The N2 adsorption-desorption isotherms were obtained at 77 K using Micromeritics 3H-2000PS2. The standard Brunauer-Emmett-Teller (BET) and Barrett-Joyner-Halenda (BJH) methods to calculate the specific surface and pore size, respectively.
The morphology and elemental composition of the samples were observed by scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDX). X-ray photoelectron spectroscopy (XPS) experiments were operated using a ESCALAB 250 with Al Kα (hν = 1486.6 eV) excitation source. The reducibility of sample was characterized by hydrogen temperature-programmed reduction (H2-TPR). Typically, samples (150 mg) were pretreated at 300 °C for 1 h in Ar.
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The samples were heated from 30 °C to 900 °C in 5% H2/Ar (30 ml/min) at 10 °C/min after cooling to room temperature. For O2-TPD, 100 mg of sample was pretreated under argon at 120 °C for 60 min with a heating ramp of 10 °C/min to remove physisorbed gases and residual feed gas. After naturally cooling to room temperature, the gas was switched to 5 vol% O2/Ar and maintained 1 h.
Finally, the catalyst was heated with a rate of 10 °C/min from room temperature to 900 °C. In order to evaluate the mechanical stability of the catalyst, the adhesion of the active components of CuMnCex/Al2O3/Cor was tested by ultrasonic vibration method.
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Where it is published
- DOI doi.org/10.57760/sciencedb.j00124.00029 ↗
DOI / persistent id · from scidb cn
Catalogue records · 1
- OAI-PMH record scidb.cn/oai?verb=GetRecord&metadataPrefix=oai_dc&identifier=10.57760%2… ↗
metadata API · from scidb cn
Topics
- From keywords
- Earth & Environmental Science · Engineering · Humanities · Life Sciences · Social Science
- Inferred from text
- Microscopy 75%
Provenance · 1 source records, 11 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| ScienceDB | 10.57760/sciencedb.j00124.00029 | 11 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · scidb cn | connector:scidb_cn@1.0.0 | |
| concepts[field].local:field:earth-environmental | mapping · scidb cn | connector:scidb_cn@1.0.0 | |
| concepts[field].local:field:engineering | mapping · scidb cn | connector:scidb_cn@1.0.0 | |
| concepts[field].local:field:humanities | mapping · scidb cn | connector:scidb_cn@1.0.0 | |
| concepts[field].local:field:life-sciences | mapping · scidb cn | connector:scidb_cn@1.0.0 | |
| concepts[field].local:field:social-science | mapping · scidb cn | connector:scidb_cn@1.0.0 | |
| concepts[modality].local:modality:microscopy | enrichment · scidb cn | keyword-concept-rules@1.0.0 | title+description (75%) |
| description | source · scidb cn | connector:scidb_cn@1.0.0 | /metadata/dc/description |
| license | source · scidb cn | connector:scidb_cn@1.0.0 | /metadata/dc/rights |
| publication_date | source · scidb cn | connector:scidb_cn@1.0.0 | |
| title | source · scidb cn | connector:scidb_cn@1.0.0 | /metadata/dc/title |