Hydrothermally stable mesoporous ZrO2 membranes prepared by a facile nanoparticle deposition process.
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| Title: | Hydrothermally stable mesoporous ZrO2 membranes prepared by a facile nanoparticle deposition process. |
|---|---|
| Authors: | Van Gestel, Tim1 (AUTHOR) t.van.gestel@fz-juelich.de, Sebold, Doris1 (AUTHOR) |
| Source: | Separation & Purification Technology. Aug2019, Vol. 221, p399-407. 9p. |
| Subjects: | Zirconium oxide, Thermal stability, High temperatures, Macroporous polymers, Ultrafiltration |
| Abstract: | • Novel graded thermally stabilized ZrO 2 membranes. • Similar quality, thickness (1–2 μm) and pore size (<5 nm) as γ-Al 2 O 3 membranes. • Able to withstand 700 °C and pH 14, and a hydrothermal environment (300 °C, 15 bar). • Reproducibly dip-coatable on conventional tubular α-Al 2 O 3 supports. • The synthesis method is extensible to other interesting materials, including CeO 2. Stabilized ZrO 2 membranes (e.g. 8YSZ) have great potential due to their excellent thermal stability. In this paper, we present a new synthetic methodology to produce 8YSZ membranes on commercial macroporous α-Al 2 O 3 supports. The resulting membranes have an average pore size of ∼5 nm and ∼3 nm, respectively, and a thickness approaching 2 μm. In various harsh stability tests, these membranes were tolerant to hydrothermal conditions (300 °C, 15 bar), high temperature (700 °C), and a high pH (NaOH, pH 14, 80 °C). They also demonstrated a suitable MWCO (15000 Da PEG; <3000 Da PEG) and permeance (145 kg h−1 m−2 bar−1; 40–50 kg h−1 m−2 bar−1) for commercial ultrafiltration processes. Importantly, they can also be considered for the production of novel graded macro-/meso-/microporous membrane systems, replacing the widely used but unstable mesoporous γ-Al 2 O 3 membranes. At the end of this paper, we demonstrate that the synthetic methodology presented is also useful for producing membranes of other promising materials, including stabilized CeO 2. [ABSTRACT FROM AUTHOR] |
| Copyright of Separation & Purification Technology is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 136647158 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Hydrothermally stable mesoporous ZrO2 membranes prepared by a facile nanoparticle deposition process. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Van+Gestel%2C+Tim%22">Van Gestel, Tim</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> t.van.gestel@fz-juelich.de</i><br /><searchLink fieldCode="AR" term="%22Sebold%2C+Doris%22">Sebold, Doris</searchLink><relatesTo>1</relatesTo> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Separation+%26+Purification+Technology%22">Separation & Purification Technology</searchLink>. Aug2019, Vol. 221, p399-407. 9p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Zirconium+oxide%22">Zirconium oxide</searchLink><br /><searchLink fieldCode="DE" term="%22Thermal+stability%22">Thermal stability</searchLink><br /><searchLink fieldCode="DE" term="%22High+temperatures%22">High temperatures</searchLink><br /><searchLink fieldCode="DE" term="%22Macroporous+polymers%22">Macroporous polymers</searchLink><br /><searchLink fieldCode="DE" term="%22Ultrafiltration%22">Ultrafiltration</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: • Novel graded thermally stabilized ZrO 2 membranes. • Similar quality, thickness (1–2 μm) and pore size (<5 nm) as γ-Al 2 O 3 membranes. • Able to withstand 700 °C and pH 14, and a hydrothermal environment (300 °C, 15 bar). • Reproducibly dip-coatable on conventional tubular α-Al 2 O 3 supports. • The synthesis method is extensible to other interesting materials, including CeO 2. Stabilized ZrO 2 membranes (e.g. 8YSZ) have great potential due to their excellent thermal stability. In this paper, we present a new synthetic methodology to produce 8YSZ membranes on commercial macroporous α-Al 2 O 3 supports. The resulting membranes have an average pore size of ∼5 nm and ∼3 nm, respectively, and a thickness approaching 2 μm. In various harsh stability tests, these membranes were tolerant to hydrothermal conditions (300 °C, 15 bar), high temperature (700 °C), and a high pH (NaOH, pH 14, 80 °C). They also demonstrated a suitable MWCO (15000 Da PEG; <3000 Da PEG) and permeance (145 kg h−1 m−2 bar−1; 40–50 kg h−1 m−2 bar−1) for commercial ultrafiltration processes. Importantly, they can also be considered for the production of novel graded macro-/meso-/microporous membrane systems, replacing the widely used but unstable mesoporous γ-Al 2 O 3 membranes. At the end of this paper, we demonstrate that the synthetic methodology presented is also useful for producing membranes of other promising materials, including stabilized CeO 2. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Separation & Purification Technology is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1016/j.seppur.2019.03.066 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 9 StartPage: 399 Subjects: – SubjectFull: Zirconium oxide Type: general – SubjectFull: Thermal stability Type: general – SubjectFull: High temperatures Type: general – SubjectFull: Macroporous polymers Type: general – SubjectFull: Ultrafiltration Type: general Titles: – TitleFull: Hydrothermally stable mesoporous ZrO2 membranes prepared by a facile nanoparticle deposition process. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Van Gestel, Tim – PersonEntity: Name: NameFull: Sebold, Doris IsPartOfRelationships: – BibEntity: Dates: – D: 15 M: 08 Text: Aug2019 Type: published Y: 2019 Identifiers: – Type: issn-print Value: 13835866 Numbering: – Type: volume Value: 221 Titles: – TitleFull: Separation & Purification Technology Type: main |
| ResultId | 1 |
