Ordered Mesoporous Zeolite Thin Films with Perpendicular Reticular Nanochannels of Wafer Size Area

Hsueh Jen Chang, Tzu Ying Chen, Zi Ping Zhao, Zih Jyun Dai, Yu Lin Chen, Chung Yuan Mou, Yi Hsin Liu

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Highly ordered mesoporous zeolite thin films (MZTFs) are grown at rigid substrates via molecular interaction from ternary structure-directing agents (SDAs) in a Stöber-like condition. The ultrathin films (10-20 nm) were deposited layer-by-layer via self-assembly of β-zeolite seeds and SDAs at 40-50 °C, resulting reticular cellular pores and perpendicular nanochannels with average pore sizes (6.7 ± 1.1 nm). The walls of the nanochannels consist of zeolitic structures in microcrystallines. Compared to cylindrical mesochannels of amorphous silica thin films, the MZTFs with reticular mesochannels demonstrate 5R/6R stretching modes (550-650 cm-1) and significantly enhanced hydrothermal stability. The MZTFs were characterized in top-view and cross-sectional electron microscopies (SEM/HRSEM/HRTEM) as well as X-ray scattering techniques (GIXRD/GISAXS), which confirm a body-centered tetragonal (Im3m) unit cell with unique Moiré patterns. Upon calcination, the film thickness is reduced to 10.6 nm with a structure transformation to a hexagonal phase. The hydrothermally stable MZTFs can serve as excellent hard templates for growing dense nanoparticle arrays and confining their diameters to well-defined sizes (4.8 ± 1.3 nm).

Original languageEnglish
Pages (from-to)8303-8313
Number of pages11
JournalChemistry of Materials
Volume30
Issue number22
DOIs
Publication statusPublished - 2018 Nov 27

Fingerprint

Zeolites
Thin films
Molecular interactions
Ultrathin films
X ray scattering
Silicon Dioxide
Calcination
Self assembly
Electron microscopy
Stretching
Pore size
Film thickness
Seed
Silica
Nanoparticles
Scanning electron microscopy
Substrates

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Materials Chemistry

Cite this

Ordered Mesoporous Zeolite Thin Films with Perpendicular Reticular Nanochannels of Wafer Size Area. / Chang, Hsueh Jen; Chen, Tzu Ying; Zhao, Zi Ping; Dai, Zih Jyun; Chen, Yu Lin; Mou, Chung Yuan; Liu, Yi Hsin.

In: Chemistry of Materials, Vol. 30, No. 22, 27.11.2018, p. 8303-8313.

Research output: Contribution to journalArticle

Chang, Hsueh Jen ; Chen, Tzu Ying ; Zhao, Zi Ping ; Dai, Zih Jyun ; Chen, Yu Lin ; Mou, Chung Yuan ; Liu, Yi Hsin. / Ordered Mesoporous Zeolite Thin Films with Perpendicular Reticular Nanochannels of Wafer Size Area. In: Chemistry of Materials. 2018 ; Vol. 30, No. 22. pp. 8303-8313.
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