Characterization of Natural Consolidated Halloysite Nanotube Structures

Jin, Jiaqi; Assemi, Shoeleh; Asgar, Hassnain; Gadikota, Greeshma; Tran, Thang; Nguyen, William; McLennan, John D.; Miller, Jan D.

doi:10.3390/min11121308

Title: Characterization of Natural Consolidated Halloysite Nanotube Structures

Abstract

Halloysite is a unique 1:1 clay mineral frequently appearing with nanotubular morphology, and having surfaces of different polarity with interesting and important technological applications. HNTs can be consolidated naturally in the earth by pressure and thermal flows. In this study of natural consolidated HNTs, the strength and hardness of these materials were found to be dependent on the presence of impurities (gibbsite, alunite, quartz, and other silica minerals), which accounted for the increased stability of such samples. In the absence of impurities, the strength of consolidated HNTs was significantly lower. The first 3D mapping of the pore structure of natural consolidated HNT is provided. The contributions of the porosity within the nanotubes and between the nanotubes were delineated using a combination of non-invasive ultra-small and small-angle X-ray scattering (USAXS/SAXS) analyses, BET/BJH pore size analyses, and computed tomography studies. A total porosity of 40%, as determined by X-ray attenuation and He porosimetry, was found for the natural consolidated HNTs, of which about one-third was due to the inter-HNT porosity. Nano-X-ray computed tomography (nano-XCT) analyses also indicated that 76% of the inter-HNT pores were smaller than 150 nm in diameter. The intra-HNT pore size determined by combined USAXS/SAXS and BET/BJH was aboutmore »« less

Authors:

Jin, Jiaqi; Assemi, Shoeleh;

; Gadikota, Greeshma; Tran, Thang; Nguyen, William;

;

Publication Date:: Wed Nov 24 00:00:00 EST 2021

Research Org.:: Univ. of Utah, Salt Lake City, UT (United States)

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

OSTI Identifier:: 1833113

Alternate Identifier(s):: OSTI ID: 1836664

Grant/Contract Number:: SC0019285

Resource Type:: Published Article

Journal Name:: Minerals

Additional Journal Information:: Journal Name: Minerals Journal Volume: 11 Journal Issue: 12; Journal ID: ISSN 2075-163X

Publisher:: MDPI AG

Country of Publication:: Switzerland

Language:: English

Subject:: 36 MATERIALS SCIENCE; halloysite; nanotube; porosity; hardness; spacing; wetting

Citation Formats


                    Jin, Jiaqi, Assemi, Shoeleh, Asgar, Hassnain, Gadikota, Greeshma, Tran, Thang, Nguyen, William, McLennan, John D., and Miller, Jan D. Characterization of Natural Consolidated Halloysite Nanotube Structures.  Switzerland: N. p., 2021. 
Web.  doi:10.3390/min11121308.

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                    Jin, Jiaqi, Assemi, Shoeleh, Asgar, Hassnain, Gadikota, Greeshma, Tran, Thang, Nguyen, William, McLennan, John D., & Miller, Jan D. Characterization of Natural Consolidated Halloysite Nanotube Structures.  Switzerland.  https://doi.org/10.3390/min11121308

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                    Jin, Jiaqi, Assemi, Shoeleh, Asgar, Hassnain, Gadikota, Greeshma, Tran, Thang, Nguyen, William, McLennan, John D., and Miller, Jan D. Wed .  
"Characterization of Natural Consolidated Halloysite Nanotube Structures".  Switzerland.  https://doi.org/10.3390/min11121308.

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@article{osti_1833113,

  title        = {Characterization of Natural Consolidated Halloysite Nanotube Structures},

  author       = {Jin, Jiaqi and Assemi, Shoeleh and Asgar, Hassnain and Gadikota, Greeshma and Tran, Thang and Nguyen, William and McLennan, John D. and Miller, Jan D.},

  abstractNote = {Halloysite is a unique 1:1 clay mineral frequently appearing with nanotubular morphology, and having surfaces of different polarity with interesting and important technological applications. HNTs can be consolidated naturally in the earth by pressure and thermal flows. In this study of natural consolidated HNTs, the strength and hardness of these materials were found to be dependent on the presence of impurities (gibbsite, alunite, quartz, and other silica minerals), which accounted for the increased stability of such samples. In the absence of impurities, the strength of consolidated HNTs was significantly lower. The first 3D mapping of the pore structure of natural consolidated HNT is provided. The contributions of the porosity within the nanotubes and between the nanotubes were delineated using a combination of non-invasive ultra-small and small-angle X-ray scattering (USAXS/SAXS) analyses, BET/BJH pore size analyses, and computed tomography studies. A total porosity of 40%, as determined by X-ray attenuation and He porosimetry, was found for the natural consolidated HNTs, of which about one-third was due to the inter-HNT porosity. Nano-X-ray computed tomography (nano-XCT) analyses also indicated that 76% of the inter-HNT pores were smaller than 150 nm in diameter. The intra-HNT pore size determined by combined USAXS/SAXS and BET/BJH was about 10 nm. This pore network information is essential for the utilization of natural consolidated HNTs as a model geomaterial to investigate the effects of surface characteristics on confined fluid flow.},

  doi          = {10.3390/min11121308},

  journal      = {Minerals},

  number       = 12,

  volume       = 11,

  place        = {Switzerland},

  year         = {Wed Nov 24 00:00:00 EST 2021},

  month        = {Wed Nov 24 00:00:00 EST 2021}

}

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Works referenced in this record:

Photon attenuation in computed tomography
journal, November 1975

McCullough, Edwin C.
Medical Physics, Vol. 2, Issue 6
DOI: 10.1118/1.594199

Nika : software for two-dimensional data reduction
journal, March 2012

Ilavsky, Jan
Journal of Applied Crystallography, Vol. 45, Issue 2
DOI: 10.1107/S0021889812004037

Rietveld Refinement of Non-Hydrogen Atomic Positions in Kaolinite
journal, January 1989

Bish, D. L.
Clays and Clay Minerals, Vol. 37, Issue 4
DOI: 10.1346/CCMN.1989.0370401

Wettability of kaolinite basal planes based on surface force measurements using atomic force microscopy
journal, February 2012

Yin, X.; Miller, J. D.
Mining, Metallurgy & Exploration, Vol. 29, Issue 1
DOI: 10.1007/BF03402328

Massive radius-dependent flow slippage in carbon nanotubes
journal, September 2016

Secchi, Eleonora; Marbach, Sophie; Niguès, Antoine
Nature, Vol. 537, Issue 7619
DOI: 10.1038/nature19315

Tailless X‐Ray Single‐Crystal Reflection Curves Obtained by Multiple Reflection
journal, November 1965

Bonse, U.; Hart, M.
Applied Physics Letters, Vol. 7, Issue 9
DOI: 10.1063/1.1754396

Halloysite clay minerals — a review
journal, December 2005

Joussein, E.; Petit, S.; Churchman, J.
Clay Minerals, Vol. 40, Issue 4
DOI: 10.1180/0009855054040180

The rise and rise of halloysite
journal, June 2016

Jock Churchman, G.; Pasbakhsh, Pooria; Hillier, Stephen
Clay Minerals, Vol. 51, Issue 3
DOI: 10.1180/claymin.2016.051.3.00

Approximations Leading to a Unified Exponential/Power-Law Approach to Small-Angle Scattering
journal, December 1995

Beaucage, G.
Journal of Applied Crystallography, Vol. 28, Issue 6
DOI: 10.1107/S0021889895005292

Role of Water in the Intercalation of Kaolinite with Hydrazine
journal, December 1998

Frost, Ray L.; Kristof, Janos; Paroz, Gina N.
Journal of Colloid and Interface Science, Vol. 208, Issue 1
DOI: 10.1006/jcis.1998.5780

Formation of metal clusters in halloysite clay nanotubes
journal, January 2017

Vinokurov, Vladimir A.; Stavitskaya, Anna V.; Chudakov, Yaroslav A.
Science and Technology of Advanced Materials, Vol. 18, Issue 1
DOI: 10.1080/14686996.2016.1278352

Contrasting thermally-induced structural and microstructural evolution of alumino-silicates with tubular and planar arrangements: Case study of halloysite and kaolinite
journal, March 2021

Asgar, Hassnain; Jin, Jiaqi; Miller, Jan
Colloids and Surfaces A: Physicochemical and Engineering Aspects, Vol. 613
DOI: 10.1016/j.colsurfa.2020.126106

An improved technique for determining hardness and elastic modulus using load and displacement sensing indentation experiments
journal, June 1992

Oliver, W. C.; Pharr, G. M.
Journal of Materials Research, Vol. 7, Issue 06, p. 1564-1583
DOI: 10.1557/JMR.1992.1564

Measurement of hardness and elastic modulus by instrumented indentation: Advances in understanding and refinements to methodology
journal, January 2004

Oliver, W. C.; Pharr, G. M.
Journal of Materials Research, Vol. 19, Issue 1
DOI: 10.1557/jmr.2004.19.1.3

Silver behenate and silver stearate powders for calibration of SAS instruments
journal, March 2012

Nyam-Osor, M.; Soloviov, D. V.; Kovalev, Yu S.
Journal of Physics: Conference Series, Vol. 351
DOI: 10.1088/1742-6596/351/1/012024

A new method for the model‐independent assessment of thickness in three‐dimensional images
journal, January 1997

Hildebrand, T.; Rüegsegger, P.
Journal of Microscopy, Vol. 185, Issue 1
DOI: 10.1046/j.1365-2818.1997.1340694.x

Ultra-Small-Angle X-ray Scattering Instrument at the Advanced Photon Source: History, Recent Development, and Current Status
journal, October 2012

Ilavsky, J.; Zhang, F.; Allen, A. J.
Metallurgical and Materials Transactions A, Vol. 44, Issue 1
DOI: 10.1007/s11661-012-1431-y

Slip Flow through Colloidal Crystals of Varying Particle Diameter
journal, December 2012

Rogers, Benjamin J.; Wirth, Mary J.
ACS Nano, Vol. 7, Issue 1
DOI: 10.1021/nn305028f

Chemical Composition and Particle Size Analysis of Kaolin
journal, October 2017

Yahaya, Shehu; Jikan, Suzi Salwah; Badarulzaman, Nur Azam
Path of Science, Vol. 3, Issue 10
DOI: 10.22178/pos.27-1

Characterization and analysis of Porous, Brittle solid structures by X-ray micro computed tomography
journal, December 2010

Lin, C. L.; Videla, A. R.; Yu, Q.
JOM, Vol. 62, Issue 12
DOI: 10.1007/s11837-010-0188-2

Irena : tool suite for modeling and analysis of small-angle scattering
journal, February 2009

Ilavsky, Jan; Jemian, Peter R.
Journal of Applied Crystallography, Vol. 42, Issue 2
DOI: 10.1107/S0021889809002222

Study of Natural Halloysite from the Dragon Mine, Utah (USA)
journal, April 2009

García, Francisco J.; García Rodríguez, Sergio; Kalytta, Andreas
Zeitschrift für anorganische und allgemeine Chemie, Vol. 635, Issue 4-5
DOI: 10.1002/zaac.200900076

Spatial characterization of heterogeneous nanopore surfaces from XCT scans of Niobrara shale
journal, July 2019

Lin, Chen-Luh; Miller, Jan D.
Colloids and Surfaces A: Physicochemical and Engineering Aspects, Vol. 572
DOI: 10.1016/j.colsurfa.2019.03.081

Pressure effects on water-intercalated kaolinite
journal, September 1987

Wada, N.; Raythatha, Rasik; Minomura, Shigeru
Solid State Communications, Vol. 63, Issue 9
DOI: 10.1016/0038-1098(87)90885-4

Towards understanding the microstructural and structural changes in natural hierarchical materials for energy recovery: In-operando multi-scale X-ray scattering characterization of Na- and Ca-montmorillonite on heating to 1150 °C
journal, May 2017

Gadikota, Greeshma; Zhang, Fan; Allen, Andrew J.
Fuel, Vol. 196
DOI: 10.1016/j.fuel.2017.01.092

Surface force measurements at the basal planes of ordered kaolinite particles
journal, April 2010

Gupta, Vishal; Miller, Jan D.
Journal of Colloid and Interface Science, Vol. 344, Issue 2
DOI: 10.1016/j.jcis.2010.01.012

Characterisation of properties of various halloysites relevant to their use as nanotubes and microfibre fillers
journal, April 2013

Pasbakhsh, Pooria; Churchman, G. Jock; Keeling, John L.
Applied Clay Science, Vol. 74
DOI: 10.1016/j.clay.2012.06.014

Correlations among the mineralogical and physical properties of halloysite nanotubes (HNTs)
journal, June 2016

Hillier, Stephen; Brydson, Rik; Delbos, Evelyne
Clay Minerals, Vol. 51, Issue 3
DOI: 10.1180/claymin.2016.051.3.11

Robust mesoporous silica compacts: multi-scale characterization of microstructural changes related to physical–mechanical properties
journal, February 2016

Maheshwari, Harsh; Roehling, John D.; Turner, Bryce A.
Journal of Materials Science, Vol. 51, Issue 9
DOI: 10.1007/s10853-016-9759-0

Halloysite in Different Ceramic Products: A Review
journal, September 2021

Lampropoulou, Paraskevi; Papoulis, Dimitrios
Materials, Vol. 14, Issue 19
DOI: 10.3390/ma14195501

Structural Mineralogy of Clays
journal, January 1952

Brindley, George W.
Clays and Clay Minerals, Vol. 1, Issue 1
DOI: 10.1346/CCMN.1952.0010105

In Situ Angstrom-to-Micrometer Characterization of the Structural and Microstructural Changes in Kaolinite on Heating Using Ultrasmall-Angle, Small-Angle, and Wide-Angle X-ray Scattering (USAXS/SAXS/WAXS)
journal, October 2017

Gadikota, Greeshma; Zhang, Fan; Allen, Andrew
Industrial & Engineering Chemistry Research, Vol. 56, Issue 41
DOI: 10.1021/acs.iecr.7b02810

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Title: Characterization of Natural Consolidated Halloysite Nanotube Structures

Abstract

Citation Formats

Photon attenuation in computed tomography journal, November 1975

Nika : software for two-dimensional data reduction journal, March 2012

Rietveld Refinement of Non-Hydrogen Atomic Positions in Kaolinite journal, January 1989

Wettability of kaolinite basal planes based on surface force measurements using atomic force microscopy journal, February 2012

Massive radius-dependent flow slippage in carbon nanotubes journal, September 2016

Tailless X‐Ray Single‐Crystal Reflection Curves Obtained by Multiple Reflection journal, November 1965

Halloysite clay minerals — a review journal, December 2005

The rise and rise of halloysite journal, June 2016

Approximations Leading to a Unified Exponential/Power-Law Approach to Small-Angle Scattering journal, December 1995

Role of Water in the Intercalation of Kaolinite with Hydrazine journal, December 1998

Formation of metal clusters in halloysite clay nanotubes journal, January 2017

Contrasting thermally-induced structural and microstructural evolution of alumino-silicates with tubular and planar arrangements: Case study of halloysite and kaolinite journal, March 2021

An improved technique for determining hardness and elastic modulus using load and displacement sensing indentation experiments journal, June 1992

Measurement of hardness and elastic modulus by instrumented indentation: Advances in understanding and refinements to methodology journal, January 2004

Silver behenate and silver stearate powders for calibration of SAS instruments journal, March 2012

A new method for the model‐independent assessment of thickness in three‐dimensional images journal, January 1997

Ultra-Small-Angle X-ray Scattering Instrument at the Advanced Photon Source: History, Recent Development, and Current Status journal, October 2012

Slip Flow through Colloidal Crystals of Varying Particle Diameter journal, December 2012

Chemical Composition and Particle Size Analysis of Kaolin journal, October 2017

Characterization and analysis of Porous, Brittle solid structures by X-ray micro computed tomography journal, December 2010

Irena : tool suite for modeling and analysis of small-angle scattering journal, February 2009

Study of Natural Halloysite from the Dragon Mine, Utah (USA) journal, April 2009

Spatial characterization of heterogeneous nanopore surfaces from XCT scans of Niobrara shale journal, July 2019

Pressure effects on water-intercalated kaolinite journal, September 1987

Towards understanding the microstructural and structural changes in natural hierarchical materials for energy recovery: In-operando multi-scale X-ray scattering characterization of Na- and Ca-montmorillonite on heating to 1150 °C journal, May 2017

Surface force measurements at the basal planes of ordered kaolinite particles journal, April 2010

Characterisation of properties of various halloysites relevant to their use as nanotubes and microfibre fillers journal, April 2013

Correlations among the mineralogical and physical properties of halloysite nanotubes (HNTs) journal, June 2016

Robust mesoporous silica compacts: multi-scale characterization of microstructural changes related to physical–mechanical properties journal, February 2016

Halloysite in Different Ceramic Products: A Review journal, September 2021

Structural Mineralogy of Clays journal, January 1952

In Situ Angstrom-to-Micrometer Characterization of the Structural and Microstructural Changes in Kaolinite on Heating Using Ultrasmall-Angle, Small-Angle, and Wide-Angle X-ray Scattering (USAXS/SAXS/WAXS) journal, October 2017

Photon attenuation in computed tomography
journal, November 1975

Nika : software for two-dimensional data reduction
journal, March 2012

Rietveld Refinement of Non-Hydrogen Atomic Positions in Kaolinite
journal, January 1989

Wettability of kaolinite basal planes based on surface force measurements using atomic force microscopy
journal, February 2012

Massive radius-dependent flow slippage in carbon nanotubes
journal, September 2016

Tailless X‐Ray Single‐Crystal Reflection Curves Obtained by Multiple Reflection
journal, November 1965

Halloysite clay minerals — a review
journal, December 2005

The rise and rise of halloysite
journal, June 2016

Approximations Leading to a Unified Exponential/Power-Law Approach to Small-Angle Scattering
journal, December 1995

Role of Water in the Intercalation of Kaolinite with Hydrazine
journal, December 1998

Formation of metal clusters in halloysite clay nanotubes
journal, January 2017

Contrasting thermally-induced structural and microstructural evolution of alumino-silicates with tubular and planar arrangements: Case study of halloysite and kaolinite
journal, March 2021

An improved technique for determining hardness and elastic modulus using load and displacement sensing indentation experiments
journal, June 1992

Measurement of hardness and elastic modulus by instrumented indentation: Advances in understanding and refinements to methodology
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A new method for the model‐independent assessment of thickness in three‐dimensional images
journal, January 1997

Ultra-Small-Angle X-ray Scattering Instrument at the Advanced Photon Source: History, Recent Development, and Current Status
journal, October 2012

Slip Flow through Colloidal Crystals of Varying Particle Diameter
journal, December 2012

Chemical Composition and Particle Size Analysis of Kaolin
journal, October 2017

Characterization and analysis of Porous, Brittle solid structures by X-ray micro computed tomography
journal, December 2010

Irena : tool suite for modeling and analysis of small-angle scattering
journal, February 2009

Study of Natural Halloysite from the Dragon Mine, Utah (USA)
journal, April 2009

Spatial characterization of heterogeneous nanopore surfaces from XCT scans of Niobrara shale
journal, July 2019

Pressure effects on water-intercalated kaolinite
journal, September 1987

Towards understanding the microstructural and structural changes in natural hierarchical materials for energy recovery: In-operando multi-scale X-ray scattering characterization of Na- and Ca-montmorillonite on heating to 1150 °C
journal, May 2017

Surface force measurements at the basal planes of ordered kaolinite particles
journal, April 2010

Characterisation of properties of various halloysites relevant to their use as nanotubes and microfibre fillers
journal, April 2013

Correlations among the mineralogical and physical properties of halloysite nanotubes (HNTs)
journal, June 2016

Robust mesoporous silica compacts: multi-scale characterization of microstructural changes related to physical–mechanical properties
journal, February 2016

Halloysite in Different Ceramic Products: A Review
journal, September 2021

Structural Mineralogy of Clays
journal, January 1952

In Situ Angstrom-to-Micrometer Characterization of the Structural and Microstructural Changes in Kaolinite on Heating Using Ultrasmall-Angle, Small-Angle, and Wide-Angle X-ray Scattering (USAXS/SAXS/WAXS)
journal, October 2017