Ordered nanoporous silica with periodic 30–60 nm pores as an effective support for gold nanoparticle catalysts with enhanced lifetime
Abstract
We demonstrate that supermolecular templating allows tuning the pore size of ordered mesoporous materials in the once elusive range from 30 nm to more than 60 nm through simple control of synthetic variables (salt/supermolecule concentration and hydrothermal temperature). Gold nanoparticles (AuNPs) within the extra-large pores exhibit dramatically increased lifetime compared to those located within relatively small mesopores due to the enhanced mass diffusion that suppresses coke deposition on AuNPs.
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Larger pore size allows the loading of metal catalyst particles.
“Larger pore size facilitates a more efficient diffusion of guest molecules within the pores [136], and also allows the loading of metal catalyst particles [154,155].”
From Block Copolymers: Synthesis, Self-Assembly, and Applications (2017) · cites this paper as [154]
Cites
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Block Copolymers: Synthesis, Self-Assembly, and Applications
Feng, H., Lu, X., Wang, W., Kang, N.-G., & Mays, J. (2017) · Polymers · doi:10.3390/polym9100494 · Cited by 467 · see citing works
“Larger pore size facilitates a more efficient diffusion of guest molecules within the pores [136], and also allows the loading of metal catalyst particles [154,155].”
BackgroundLarge-pore ordered mesoporous materials templated from non-pluronic amphiphilic block copolymers
Deng, Y., Wei, J., Sun, Z., & Zhao, D. (2013) · Chem. Soc. Rev. · doi:10.1039/c2cs35426h · Cited by 447 · see citing works
- Authors
- Ma, G., Yan, X., Li, Y., Xiao, L., Huang, Z., Lu, Y., & Fan, J.
- Affiliations
- Zhejiang University (CN)
- Corresponding author
- Fan, Jie
- Venue
- Journal of the American Chemical Society
- Publisher
- American Chemical Society (ACS)
- Published
- 2010-06-28
- Volume
- 132
- Issue
- 28
- Pages
- 9596-9597
- ISSN
- 0002-7863 (ISSN-L)
- 1520-5126
- OpenAlex
- W2045509967
- Cited by
- 119
- References
- 14
- Citations by year
- 2026: 1 · 2024: 8 · 2023: 2 · 2022: 6 · 2021: 10 · 2020: 7 · 2019: 9 · 2018: 4 · 2017: 10 · 2016: 11 · 2015: 10 · 2014: 9 · 2013: 14 · 2012: 7
- FWCI
- 5.03
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Journal of the American Chemical Society (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Physical Sciences › Materials Science › Materials Chemistry › Mesoporous Materials and Catalysis
- Physical Sciences › Materials Science › Materials Chemistry › Catalytic Processes in Materials Science
- Physical Sciences › Chemistry › Organic Chemistry › Nanomaterials for catalytic reactions
- Keywords
- ordered mesoporous silica, gold nanoparticles, nanocatalysts, pore size control, catalyst lifetime, coke formation, mass diffusion, hydrothermal synthesis
- MeSH terms
- Catalysis, Gold, Microscopy, Electron, Scanning, Microscopy, Electron, Transmission, Metal Nanoparticles
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