Quantification of thickness and wrinkling of exfoliated two-dimensional zeolite nanosheets

Kumar, Prashant; Agrawal, Kumar Varoon; Tsapatsis, Michael; Mkhoyan, K. Andre

doi:10.1038/ncomms8128

Title: Quantification of thickness and wrinkling of exfoliated two-dimensional zeolite nanosheets

Abstract

Some two-dimensional (2D) exfoliated zeolites are single- or near single-unit cell thick silicates that can function as molecular sieves. Although they have already found uses as catalysts, adsorbents and membranes precise determination of their thickness and wrinkling is critical as these properties influence their functionality. Here we demonstrate a method to accurately determine the thickness and wrinkles of a 2D zeolite nanosheet by comprehensive 3D mapping of its reciprocal lattice. Since the intensity modulation of a diffraction spot on tilting is a fingerprint of the thickness, and changes in the spot shape are a measure of wrinkling, this mapping is achieved using a large-angle tilt-series of electron diffraction patterns. As a result, application of the method to a 2D zeolite with MFI structure reveals that the exfoliated MFI nanosheet is 1.5 unit cells (3.0 nm) thick and wrinkled anisotropically with up to 0.8 nm average surface roughness.

Authors:

Kumar, Prashant ^[1]; Agrawal, Kumar Varoon ^[1]; Tsapatsis, Michael ^[1]; Mkhoyan, K. Andre ^[1]

Univ. of Minnesota, Minneapolis, MN (United States)

Publication Date:: Mon May 11 00:00:00 EDT 2015

Research Org.:: Energy Frontier Research Centers (EFRC) (United States). Catalysis Center for Energy Innovation (CCEI)

Sponsoring Org.:: USDOE Office of Science (SC), Basic Energy Sciences (BES)

OSTI Identifier:: 1210705

Grant/Contract Number:: SC0001004

Resource Type:: Accepted Manuscript

Journal Name:: Nature Communications

Additional Journal Information:: Journal Volume: 6; Journal Issue: 1; Related Information: CCEI partners with the University of Delaware (lead); Brookhaven National Laboratory; California Institute of Technology; Columbia University; University of Delaware; Lehigh University; University of Massachusetts, Amherst; Massachusetts Institute of Technology; University of Minnesota; Pacific Northwest National Laboratory; University of Pennsylvania; Princeton University; Rutgers University; Journal ID: ISSN 2041-1723

Publisher:: Nature Publishing Group

Country of Publication:: United States

Language:: English

Subject:: 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; catalysis (homogeneous); catalysis (heterogeneous); biofuels (including algae and biomass); bio-inspired; hydrogen and fuel cells; materials and chemistry by design; synthesis (novel materials); synthesis (self-assembly); synthesis (scalable processing)

Citation Formats


                    Kumar, Prashant, Agrawal, Kumar Varoon, Tsapatsis, Michael, and Mkhoyan, K. Andre. Quantification of thickness and wrinkling of exfoliated two-dimensional zeolite nanosheets.  United States: N. p., 2015. 
Web.  doi:10.1038/ncomms8128.

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                    Kumar, Prashant, Agrawal, Kumar Varoon, Tsapatsis, Michael, & Mkhoyan, K. Andre. Quantification of thickness and wrinkling of exfoliated two-dimensional zeolite nanosheets.  United States.  https://doi.org/10.1038/ncomms8128

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                    Kumar, Prashant, Agrawal, Kumar Varoon, Tsapatsis, Michael, and Mkhoyan, K. Andre. Mon .  
"Quantification of thickness and wrinkling of exfoliated two-dimensional zeolite nanosheets".  United States.  https://doi.org/10.1038/ncomms8128.  https://www.osti.gov/servlets/purl/1210705.

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@article{osti_1210705,

  title        = {Quantification of thickness and wrinkling of exfoliated two-dimensional zeolite nanosheets},

  author       = {Kumar, Prashant and Agrawal, Kumar Varoon and Tsapatsis, Michael and Mkhoyan, K. Andre},

  abstractNote = {Some two-dimensional (2D) exfoliated zeolites are single- or near single-unit cell thick silicates that can function as molecular sieves. Although they have already found uses as catalysts, adsorbents and membranes precise determination of their thickness and wrinkling is critical as these properties influence their functionality. Here we demonstrate a method to accurately determine the thickness and wrinkles of a 2D zeolite nanosheet by comprehensive 3D mapping of its reciprocal lattice. Since the intensity modulation of a diffraction spot on tilting is a fingerprint of the thickness, and changes in the spot shape are a measure of wrinkling, this mapping is achieved using a large-angle tilt-series of electron diffraction patterns. As a result, application of the method to a 2D zeolite with MFI structure reveals that the exfoliated MFI nanosheet is 1.5 unit cells (3.0 nm) thick and wrinkled anisotropically with up to 0.8 nm average surface roughness.},

  doi          = {10.1038/ncomms8128},

  journal      = {Nature Communications},

  number       = 1,

  volume       = 6,

  place        = {United States},

  year         = {Mon May 11 00:00:00 EDT 2015},

  month        = {Mon May 11 00:00:00 EDT 2015}

}

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Works referenced in this record:

The structure of suspended graphene sheets
journal, March 2007

Meyer, Jannik C.; Geim, A. K.; Katsnelson, M. I.
Nature, Vol. 446, Issue 7131, p. 60-63
DOI: 10.1038/nature05545

Delaminated zeolite precursors as selective acidic catalysts
journal, November 1998

Corma, A.; Fornes, V.; Pergher, S. B.
Nature, Vol. 396, Issue 6709, p. 353-356
DOI: 10.1038/24592

The structure of suspended graphene sheets
journal, March 2007

Meyer, Jannik C.; Geim, A. K.; Katsnelson, M. I.
Nature, Vol. 446, Issue 7131, p. 60-63
DOI: 10.1038/nature05545

Solution-processable exfoliated zeolite nanosheets purified by density gradient centrifugation
journal, May 2013

Agrawal, Kumar Varoon; Topuz, Berna; Jiang, Zheyu
AIChE Journal, Vol. 59, Issue 9, p. 3458-3467
DOI: 10.1002/aic.14099

Intrinsic ripples in graphene
text, January 2007

Fasolino, A.; Los, J. H.; Katsnelson, M. I.
arXiv
DOI: 10.48550/arxiv.0704.1793

Layer Structure Preservation during Swelling, Pillaring, and Exfoliation of a Zeolite Precursor
journal, January 2008

Maheshwari, Sudeep; Jordan, Edgar; Kumar, Sandeep
Journal of the American Chemical Society, Vol. 130, Issue 4, p. 1507-1516
DOI: 10.1021/ja077711i

Controlled ripple texturing of suspended graphene and ultrathin graphite membranes
journal, July 2009

Bao, Wenzhong; Miao, Feng; Chen, Zhen
Nature Nanotechnology, Vol. 4, Issue 9
DOI: 10.1038/nnano.2009.191

Manifestation of ripples in free-standing graphene in lattice images obtained in an aberration-corrected scanning transmission electron microscope
journal, June 2009

Bangert, U.; Gass, M. H.; Bleloch, A. L.
physica status solidi (a), Vol. 206, Issue 6
DOI: 10.1002/pssa.200824453

Intrinsic ripples in graphene
journal, September 2007

Fasolino, A.; Los, J. H.; Katsnelson, M. I.
Nature Materials, Vol. 6, Issue 11
DOI: 10.1038/nmat2011

The structure of suspended graphene sheets
text, January 2007

Meyer, Jannik C.; Geim, A. K.; Katsnelson, M. I.
arXiv
DOI: 10.48550/arxiv.cond-mat/0701379

Synthesis of Self-Pillared Zeolite Nanosheets by Repetitive Branching
journal, June 2012

Zhang, Xueyi; Liu, Dongxia; Xu, Dandan
Science, Vol. 336, Issue 6089
DOI: 10.1126/science.1221111

Ordered porous materials for emerging applications
journal, June 2002

Davis, Mark E.
Nature, Vol. 417, Issue 6891, p. 813-821
DOI: 10.1038/nature00785

Study of focused-ion-beam–induced structural and compositional modifications in nanoscale bilayer systems by combined grazing incidence x ray reflectivity and fluorescence
journal, February 2012

Arac, Erhan; Burn, David M.; Eastwood, David S.
Journal of Applied Physics, Vol. 111, Issue 4
DOI: 10.1063/1.3689016

The scattering of electrons by atoms and crystals. I. A new theoretical approach
journal, October 1957

Cowley, J. M.; Moodie, A. F.
Acta Crystallographica, Vol. 10, Issue 10, p. 609-619
DOI: 10.1107/S0365110X57002194

Intrinsic ripples in graphene
text, January 2007

Fasolino, A.; Los, J. H.; Katsnelson, M. I.
arXiv
DOI: 10.48550/arxiv.0704.1793

Determination of layer-thickness variation in periodic multilayer by x-ray reflectivity
journal, May 2010

Jiang, Hui; Zhu, Jingtao; Xu, Jing
Journal of Applied Physics, Vol. 107, Issue 10
DOI: 10.1063/1.3383037

Radiolysis to knock-on damage transition in zeolites under electron beam irradiation
journal, March 2011

Ugurlu, O.; Haus, J.; Gunawan, A. A.
Physical Review B, Vol. 83, Issue 11
DOI: 10.1103/PhysRevB.83.113408

Influence of layer structure preservation on the catalytic properties of the pillared zeolite MCM-36
journal, June 2010

Maheshwari, Sudeep; Martínez, Cristina; Teresa Portilla, M.
Journal of Catalysis, Vol. 272, Issue 2
DOI: 10.1016/j.jcat.2010.04.011

Understanding the Unusual Adsorption Behavior in Hierarchical Zeolite Nanosheets
journal, May 2014

Bai, Peng; Olson, David H.; Tsapatsis, Michael
ChemPhysChem, Vol. 15, Issue 11
DOI: 10.1002/cphc.201402189

Pillared MFI Zeolite Nanosheets of a Single-Unit-Cell Thickness
journal, March 2010

Na, Kyungsu; Choi, Minkee; Park, Woojin
Journal of the American Chemical Society, Vol. 132, Issue 12, p. 4169-4177
DOI: 10.1021/ja908382n

Understanding the Unusual Adsorption Behavior in Hierarchical Zeolite Nanosheets
journal, May 2014

Bai, Peng; Olson, David H.; Tsapatsis, Michael
ChemPhysChem, Vol. 15, Issue 11
DOI: 10.1002/cphc.201402189

Aperiodic W/B4C multilayer systems for X-ray optics: Quantitative determination of layer thickness by HAADF-STEM and X-ray reflectivity
journal, March 2010

Häussler, D.; Morawe, Ch.; Roß, U.
Surface and Coatings Technology, Vol. 204, Issue 12-13
DOI: 10.1016/j.surfcoat.2009.10.005

Computational characterization of zeolite porous networks: an automated approach
journal, January 2011

First, Eric L.; Gounaris, Chrysanthos E.; Wei, James
Physical Chemistry Chemical Physics, Vol. 13, Issue 38
DOI: 10.1039/c1cp21731c

Stable single-unit-cell nanosheets of zeolite MFI as active and long-lived catalysts
journal, September 2009

Choi, Minkee; Na, Kyungsu; Kim, Jeongnam
Nature, Vol. 461, Issue 7261, p. 246-249
DOI: 10.1038/nature08288

Structure of synthetic zeolite ZSM-5
journal, March 1978

Kokotailo, G. T.; Lawton, S. L.; Olson, D. H.
Nature, Vol. 272, Issue 5652
DOI: 10.1038/272437a0

Ordered porous materials for emerging applications
journal, June 2002

Davis, Mark E.
Nature, Vol. 417, Issue 6891, p. 813-821
DOI: 10.1038/nature00785

Synthesis of Self-Pillared Zeolite Nanosheets by Repetitive Branching
journal, June 2012

Zhang, Xueyi; Liu, Dongxia; Xu, Dandan
Science, Vol. 336, Issue 6089
DOI: 10.1126/science.1221111

Dispersible Exfoliated Zeolite Nanosheets and Their Application as a Selective Membrane
journal, October 2011

Varoon, K.; Zhang, X.; Elyassi, B.
Science, Vol. 334, Issue 6052, p. 72-75
DOI: 10.1126/science.1208891

Thickness and morphology of polyelectrolyte coatings on silica surfaces before and after protein exposure studied by atomic force microscopy
journal, May 2013

Haselberg, Rob; Flesch, Frits M.; Boerke, Arjan
Analytica Chimica Acta, Vol. 779
DOI: 10.1016/j.aca.2013.03.066

Zeolite Thin Films: From Computer Chips to Space Stations
journal, February 2010

Lew, Christopher M.; Cai, Rui; Yan, Yushan
Accounts of Chemical Research, Vol. 43, Issue 2, p. 210-219
DOI: 10.1021/ar900146w

Two-Dimensional Zeolites: Current Status and Perspectives
journal, February 2014

Roth, Wieslaw J.; Nachtigall, Petr; Morris, Russell E.
Chemical Reviews, Vol. 114, Issue 9
DOI: 10.1021/cr400600f

Morphology, order, light transmittance, and water vapor permeability of aluminum-coated polypropylene zeolite composite films
journal, December 2010

Balköse, Devrim; Oguz, Kaan; Ozyuzer, Lutfi
Journal of Applied Polymer Science, Vol. 120, Issue 3
DOI: 10.1002/app.33300

Two-Dimensional Zeolites: Current Status and Perspectives
journal, February 2014

Roth, Wieslaw J.; Nachtigall, Petr; Morris, Russell E.
Chemical Reviews, Vol. 114, Issue 9
DOI: 10.1021/cr400600f

Hierarchically Structure-Directing Effect of Multi-Ammonium Surfactants for the Generation of MFI Zeolite Nanosheets
journal, December 2011

Park, Woojin; Yu, Doae; Na, Kyungsu
Chemistry of Materials, Vol. 23, Issue 23
DOI: 10.1021/cm201709q

2-dimensional zeolites
journal, May 2014

Tsapatsis, Michael
AIChE Journal, Vol. 60, Issue 7
DOI: 10.1002/aic.14462

Surfing ripples towards new devices
journal, September 2009

Miranda, Rodolfo; Vázquez de Parga, Amadeo L.
Nature Nanotechnology, Vol. 4, Issue 9
DOI: 10.1038/nnano.2009.250

Dispersible Exfoliated Zeolite Nanosheets and Their Application as a Selective Membrane
journal, October 2011

Varoon, K.; Zhang, X.; Elyassi, B.
Science, Vol. 334, Issue 6052, p. 72-75
DOI: 10.1126/science.1208891

Thickness and morphology of polyelectrolyte coatings on silica surfaces before and after protein exposure studied by atomic force microscopy
journal, May 2013

Haselberg, Rob; Flesch, Frits M.; Boerke, Arjan
Analytica Chimica Acta, Vol. 779
DOI: 10.1016/j.aca.2013.03.066

Stable single-unit-cell nanosheets of zeolite MFI as active and long-lived catalysts
journal, September 2009

Choi, Minkee; Na, Kyungsu; Kim, Jeongnam
Nature, Vol. 461, Issue 7261, p. 246-249
DOI: 10.1038/nature08288

Direct Imaging of Atomic-Scale Ripples in Few-Layer Graphene
journal, April 2012

Wang, Wei L.; Bhandari, Sagar; Yi, Wei
Nano Letters, Vol. 12, Issue 5
DOI: 10.1021/nl300071y

Pillared MFI Zeolite Nanosheets of a Single-Unit-Cell Thickness
journal, March 2010

Na, Kyungsu; Choi, Minkee; Park, Woojin
Journal of the American Chemical Society, Vol. 132, Issue 12, p. 4169-4177
DOI: 10.1021/ja908382n

Computational characterization of zeolite porous networks: an automated approach
journal, January 2011

First, Eric L.; Gounaris, Chrysanthos E.; Wei, James
Physical Chemistry Chemical Physics, Vol. 13, Issue 38
DOI: 10.1039/c1cp21731c

Layered inorganic solids
journal, January 2014

Čejka, Jiří; Morris, Russell E.; Nachtigall, Petr
Dalton Transactions, Vol. 43, Issue 27
DOI: 10.1039/c4dt90078b

Advanced Computing in Electron Microscopy
book, January 2010

Kirkland, Earl J.
DOI: 10.1007/978-1-4419-6533-2

Works referencing / citing this record:

Catalysis of sugarcane-bagasse pyrolysis by Co, Ni, and Cu single and mixed oxide nanocomposites
journal, January 2020

Emara, Mahmoud Mohamed; Ali, Shrouq Hossam; Kassem, Taher Salah Edin
Journal of Nanoparticle Research, Vol. 22, Issue 1
DOI: 10.1007/s11051-019-4749-1

CMOS-compatible batch processing of monolayer MoS ₂ MOSFETs
journal, March 2018

Xiong, Kuanchen; Kim, Hyun; Marstell, Roderick J.
Journal of Physics D: Applied Physics, Vol. 51, Issue 15
DOI: 10.1088/1361-6463/aab4ba

Uniform hierarchical MFI nanosheets prepared via anisotropic etching for solution-based sub–100-nm-thick oriented MFI layer fabrication
journal, February 2020

Liu, Yi; Qiang, Weili; Ji, Taotao
Science Advances, Vol. 6, Issue 7
DOI: 10.1126/sciadv.aay5993

Progress in Developing a Structure‐Activity Relationship for the Direct Aromatization of Methane
journal, July 2018

Vollmer, Ina; Yarulina, Irina; Kapteijn, Freek
ChemCatChem, Vol. 11, Issue 1
DOI: 10.1002/cctc.201800880

Open-Pore Two-Dimensional MFI Zeolite Nanosheets for the Fabrication of Hydrocarbon-Isomer-Selective Membranes on Porous Polymer Supports
journal, April 2016

Zhang, Han; Xiao, Qiang; Guo, Xianghai
Angewandte Chemie, Vol. 128, Issue 25
DOI: 10.1002/ange.201601135

Strategies to control zeolite particle morphology
journal, January 2019

Li, Shiying; Li, Junfen; Dong, Mei
Chemical Society Reviews, Vol. 48, Issue 3
DOI: 10.1039/c8cs00774h

Open-Pore Two-Dimensional MFI Zeolite Nanosheets for the Fabrication of Hydrocarbon-Isomer-Selective Membranes on Porous Polymer Supports
journal, April 2016

Zhang, Han; Xiao, Qiang; Guo, Xianghai
Angewandte Chemie International Edition, Vol. 55, Issue 25
DOI: 10.1002/anie.201601135

Heterogeneous Catalysis in Zeolites, Mesoporous Silica, and Metal-Organic Frameworks
journal, June 2017

Liang, Jie; Liang, Zibin; Zou, Ruqiang
Advanced Materials, Vol. 29, Issue 30
DOI: 10.1002/adma.201701139

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Title: Quantification of thickness and wrinkling of exfoliated two-dimensional zeolite nanosheets

Abstract

Citation Formats

The structure of suspended graphene sheets journal, March 2007

Delaminated zeolite precursors as selective acidic catalysts journal, November 1998

The structure of suspended graphene sheets journal, March 2007

Solution-processable exfoliated zeolite nanosheets purified by density gradient centrifugation journal, May 2013

Intrinsic ripples in graphene text, January 2007

Layer Structure Preservation during Swelling, Pillaring, and Exfoliation of a Zeolite Precursor journal, January 2008

Controlled ripple texturing of suspended graphene and ultrathin graphite membranes journal, July 2009

Manifestation of ripples in free-standing graphene in lattice images obtained in an aberration-corrected scanning transmission electron microscope journal, June 2009

Intrinsic ripples in graphene journal, September 2007

The structure of suspended graphene sheets text, January 2007

Synthesis of Self-Pillared Zeolite Nanosheets by Repetitive Branching journal, June 2012

Ordered porous materials for emerging applications journal, June 2002

Study of focused-ion-beam–induced structural and compositional modifications in nanoscale bilayer systems by combined grazing incidence x ray reflectivity and fluorescence journal, February 2012

The scattering of electrons by atoms and crystals. I. A new theoretical approach journal, October 1957

Intrinsic ripples in graphene text, January 2007

Determination of layer-thickness variation in periodic multilayer by x-ray reflectivity journal, May 2010

Radiolysis to knock-on damage transition in zeolites under electron beam irradiation journal, March 2011

Influence of layer structure preservation on the catalytic properties of the pillared zeolite MCM-36 journal, June 2010

Understanding the Unusual Adsorption Behavior in Hierarchical Zeolite Nanosheets journal, May 2014

Pillared MFI Zeolite Nanosheets of a Single-Unit-Cell Thickness journal, March 2010

Understanding the Unusual Adsorption Behavior in Hierarchical Zeolite Nanosheets journal, May 2014

Aperiodic W/B4C multilayer systems for X-ray optics: Quantitative determination of layer thickness by HAADF-STEM and X-ray reflectivity journal, March 2010

Computational characterization of zeolite porous networks: an automated approach journal, January 2011

Stable single-unit-cell nanosheets of zeolite MFI as active and long-lived catalysts journal, September 2009

Structure of synthetic zeolite ZSM-5 journal, March 1978

Ordered porous materials for emerging applications journal, June 2002

Synthesis of Self-Pillared Zeolite Nanosheets by Repetitive Branching journal, June 2012

Dispersible Exfoliated Zeolite Nanosheets and Their Application as a Selective Membrane journal, October 2011

Thickness and morphology of polyelectrolyte coatings on silica surfaces before and after protein exposure studied by atomic force microscopy journal, May 2013

Zeolite Thin Films: From Computer Chips to Space Stations journal, February 2010

Two-Dimensional Zeolites: Current Status and Perspectives journal, February 2014

Morphology, order, light transmittance, and water vapor permeability of aluminum-coated polypropylene zeolite composite films journal, December 2010

Two-Dimensional Zeolites: Current Status and Perspectives journal, February 2014

Hierarchically Structure-Directing Effect of Multi-Ammonium Surfactants for the Generation of MFI Zeolite Nanosheets journal, December 2011

2-dimensional zeolites journal, May 2014

Surfing ripples towards new devices journal, September 2009

Dispersible Exfoliated Zeolite Nanosheets and Their Application as a Selective Membrane journal, October 2011

Thickness and morphology of polyelectrolyte coatings on silica surfaces before and after protein exposure studied by atomic force microscopy journal, May 2013

Stable single-unit-cell nanosheets of zeolite MFI as active and long-lived catalysts journal, September 2009

Direct Imaging of Atomic-Scale Ripples in Few-Layer Graphene journal, April 2012

Pillared MFI Zeolite Nanosheets of a Single-Unit-Cell Thickness journal, March 2010

Computational characterization of zeolite porous networks: an automated approach journal, January 2011

Layered inorganic solids journal, January 2014

Advanced Computing in Electron Microscopy book, January 2010

Catalysis of sugarcane-bagasse pyrolysis by Co, Ni, and Cu single and mixed oxide nanocomposites journal, January 2020

CMOS-compatible batch processing of monolayer MoS 2 MOSFETs journal, March 2018

Uniform hierarchical MFI nanosheets prepared via anisotropic etching for solution-based sub–100-nm-thick oriented MFI layer fabrication journal, February 2020

Progress in Developing a Structure‐Activity Relationship for the Direct Aromatization of Methane journal, July 2018

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The structure of suspended graphene sheets
journal, March 2007

Delaminated zeolite precursors as selective acidic catalysts
journal, November 1998

The structure of suspended graphene sheets
journal, March 2007

Solution-processable exfoliated zeolite nanosheets purified by density gradient centrifugation
journal, May 2013

Intrinsic ripples in graphene
text, January 2007

Layer Structure Preservation during Swelling, Pillaring, and Exfoliation of a Zeolite Precursor
journal, January 2008

Controlled ripple texturing of suspended graphene and ultrathin graphite membranes
journal, July 2009

Manifestation of ripples in free-standing graphene in lattice images obtained in an aberration-corrected scanning transmission electron microscope
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Intrinsic ripples in graphene
journal, September 2007

The structure of suspended graphene sheets
text, January 2007

Synthesis of Self-Pillared Zeolite Nanosheets by Repetitive Branching
journal, June 2012

Ordered porous materials for emerging applications
journal, June 2002

Study of focused-ion-beam–induced structural and compositional modifications in nanoscale bilayer systems by combined grazing incidence x ray reflectivity and fluorescence
journal, February 2012

The scattering of electrons by atoms and crystals. I. A new theoretical approach
journal, October 1957

Intrinsic ripples in graphene
text, January 2007

Determination of layer-thickness variation in periodic multilayer by x-ray reflectivity
journal, May 2010

Radiolysis to knock-on damage transition in zeolites under electron beam irradiation
journal, March 2011

Influence of layer structure preservation on the catalytic properties of the pillared zeolite MCM-36
journal, June 2010

Understanding the Unusual Adsorption Behavior in Hierarchical Zeolite Nanosheets
journal, May 2014

Pillared MFI Zeolite Nanosheets of a Single-Unit-Cell Thickness
journal, March 2010

Understanding the Unusual Adsorption Behavior in Hierarchical Zeolite Nanosheets
journal, May 2014

Aperiodic W/B4C multilayer systems for X-ray optics: Quantitative determination of layer thickness by HAADF-STEM and X-ray reflectivity
journal, March 2010

Computational characterization of zeolite porous networks: an automated approach
journal, January 2011

Stable single-unit-cell nanosheets of zeolite MFI as active and long-lived catalysts
journal, September 2009

Structure of synthetic zeolite ZSM-5
journal, March 1978

Ordered porous materials for emerging applications
journal, June 2002

Synthesis of Self-Pillared Zeolite Nanosheets by Repetitive Branching
journal, June 2012

Dispersible Exfoliated Zeolite Nanosheets and Their Application as a Selective Membrane
journal, October 2011

Thickness and morphology of polyelectrolyte coatings on silica surfaces before and after protein exposure studied by atomic force microscopy
journal, May 2013

Zeolite Thin Films: From Computer Chips to Space Stations
journal, February 2010

Two-Dimensional Zeolites: Current Status and Perspectives
journal, February 2014

Morphology, order, light transmittance, and water vapor permeability of aluminum-coated polypropylene zeolite composite films
journal, December 2010

Two-Dimensional Zeolites: Current Status and Perspectives
journal, February 2014

Hierarchically Structure-Directing Effect of Multi-Ammonium Surfactants for the Generation of MFI Zeolite Nanosheets
journal, December 2011

2-dimensional zeolites
journal, May 2014

Surfing ripples towards new devices
journal, September 2009

Dispersible Exfoliated Zeolite Nanosheets and Their Application as a Selective Membrane
journal, October 2011

Thickness and morphology of polyelectrolyte coatings on silica surfaces before and after protein exposure studied by atomic force microscopy
journal, May 2013

Stable single-unit-cell nanosheets of zeolite MFI as active and long-lived catalysts
journal, September 2009

Direct Imaging of Atomic-Scale Ripples in Few-Layer Graphene
journal, April 2012

Pillared MFI Zeolite Nanosheets of a Single-Unit-Cell Thickness
journal, March 2010

Computational characterization of zeolite porous networks: an automated approach
journal, January 2011

Layered inorganic solids
journal, January 2014

Advanced Computing in Electron Microscopy
book, January 2010

Catalysis of sugarcane-bagasse pyrolysis by Co, Ni, and Cu single and mixed oxide nanocomposites
journal, January 2020

CMOS-compatible batch processing of monolayer MoS ₂ MOSFETs
journal, March 2018

Uniform hierarchical MFI nanosheets prepared via anisotropic etching for solution-based sub–100-nm-thick oriented MFI layer fabrication
journal, February 2020

Progress in Developing a Structure‐Activity Relationship for the Direct Aromatization of Methane
journal, July 2018

Open-Pore Two-Dimensional MFI Zeolite Nanosheets for the Fabrication of Hydrocarbon-Isomer-Selective Membranes on Porous Polymer Supports
journal, April 2016

Strategies to control zeolite particle morphology
journal, January 2019

Open-Pore Two-Dimensional MFI Zeolite Nanosheets for the Fabrication of Hydrocarbon-Isomer-Selective Membranes on Porous Polymer Supports
journal, April 2016

Heterogeneous Catalysis in Zeolites, Mesoporous Silica, and Metal-Organic Frameworks
journal, June 2017