Direct, single-step synthesis of hierarchical zeolites without secondary templating
Journal Article
·
· Journal of Materials Chemistry. A
- Univ. of Massachusetts, Amherst, MA (United States)
- Univ. of Massachusetts, Amherst, MA (United States); South China Univ. of Technology (SCUT), Guangzhou (China)
- Department of Chemical Engineering; University of Massachusetts Amherst; USA
- Lehigh Univ., Bethlehem, PA (United States)
Here, hierarchical ZSM-5 was directly synthesized by controlling the nucleation, growth and template-free self-assembly of zeolite precursors formed in the initial stage of the zeolite crystallization process. The facile synthesis results in spherical particles primarily composed of a micro-mesoporous core of aggregated 30–50 nm MFI nanocrystals, and a thin crystalline shell. MFI nanocrystal assembly coupled with a possible dissolution–crystallization mechanism results in a template-free route to broadly distributed mesopores and, thereby, a ca. 25 nm diffusion length in a micrometer-sized particle. The materials exhibit enhanced mass transport and superior catalytic activity for bulky molecules.
- Research Organization:
- Energy Frontier Research Centers (EFRC) (United States). Catalysis Center for Energy Innovation (CCEI)
- Sponsoring Organization:
- Chinese Scholarship Council (CSC); USDOE Office of Science (SC), Basic Energy Sciences (BES)
- Grant/Contract Number:
- SC0001004
- OSTI ID:
- 1210431
- Journal Information:
- Journal of Materials Chemistry. A, Journal Name: Journal of Materials Chemistry. A Journal Issue: 3 Vol. 3; ISSN 2050-7488
- Publisher:
- Royal Society of ChemistryCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
bio-inspired
biofuels (including algae and biomass)
catalysis (heterogeneous)
catalysis (homogeneous)
hydrogen and fuel cells
materials and chemistry by design
synthesis (novel materials)
synthesis (scalable processing)
synthesis (self-assembly)
bio-inspired
biofuels (including algae and biomass)
catalysis (heterogeneous)
catalysis (homogeneous)
hydrogen and fuel cells
materials and chemistry by design
synthesis (novel materials)
synthesis (scalable processing)
synthesis (self-assembly)