skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Shedding light on the atomic-scale structure of amorphous silica–alumina and its Brønsted acid sites

Abstract

Advanced solid-state NMR methods, using dynamic nuclear polarization (DNP), are applied to probe the atomic-scale bulk structure of amorphous silica–alumina catalysts prepared by flame-spray pyrolysis, and the structure of their Brønsted acid sites.

Authors:
ORCiD logo [1];  [2]; ORCiD logo [1]; ORCiD logo [3]; ORCiD logo [2]; ORCiD logo [4]
  1. US DOE, Ames Laboratory, Ames, USA
  2. Laboratory for Catalysis Engineering, School of Chemical and Biomolecular Engineering & Sydney Nano Institute, University of Sydney, Sydney, Australia
  3. Institute for Chemical and Bioengineering, Department of Chemistry and Applied Bioscience, ETH Zürich, HCI, Switzerland
  4. US DOE, Ames Laboratory, Ames, USA, Department of Chemistry
Publication Date:
Research Org.:
Ames Laboratory (AMES), Ames, IA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1559344
Alternate Identifier(s):
OSTI ID: 1561968
Report Number(s):
IS-J-10031
Journal ID: ISSN 1463-9076; PPCPFQ
Grant/Contract Number:  
AC02-07CH11358; DP150103842; DP180104010
Resource Type:
Journal Article: Published Article
Journal Name:
Physical Chemistry Chemical Physics. PCCP (Print)
Additional Journal Information:
Journal Name: Physical Chemistry Chemical Physics. PCCP (Print) Journal Volume: 21 Journal Issue: 35; Journal ID: ISSN 1463-9076
Publisher:
Royal Society of Chemistry (RSC)
Country of Publication:
United Kingdom
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Citation Formats

Perras, Frédéric A., Wang, Zichun, Kobayashi, Takeshi, Baiker, Alfons, Huang, Jun, and Pruski, Marek. Shedding light on the atomic-scale structure of amorphous silica–alumina and its Brønsted acid sites. United Kingdom: N. p., 2019. Web. doi:10.1039/C9CP04099D.
Perras, Frédéric A., Wang, Zichun, Kobayashi, Takeshi, Baiker, Alfons, Huang, Jun, & Pruski, Marek. Shedding light on the atomic-scale structure of amorphous silica–alumina and its Brønsted acid sites. United Kingdom. doi:10.1039/C9CP04099D.
Perras, Frédéric A., Wang, Zichun, Kobayashi, Takeshi, Baiker, Alfons, Huang, Jun, and Pruski, Marek. Wed . "Shedding light on the atomic-scale structure of amorphous silica–alumina and its Brønsted acid sites". United Kingdom. doi:10.1039/C9CP04099D.
@article{osti_1559344,
title = {Shedding light on the atomic-scale structure of amorphous silica–alumina and its Brønsted acid sites},
author = {Perras, Frédéric A. and Wang, Zichun and Kobayashi, Takeshi and Baiker, Alfons and Huang, Jun and Pruski, Marek},
abstractNote = {Advanced solid-state NMR methods, using dynamic nuclear polarization (DNP), are applied to probe the atomic-scale bulk structure of amorphous silica–alumina catalysts prepared by flame-spray pyrolysis, and the structure of their Brønsted acid sites.},
doi = {10.1039/C9CP04099D},
journal = {Physical Chemistry Chemical Physics. PCCP (Print)},
issn = {1463-9076},
number = 35,
volume = 21,
place = {United Kingdom},
year = {2019},
month = {9}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record at 10.1039/C9CP04099D

Citation Metrics:
Cited by: 2 works
Citation information provided by
Web of Science

Figures / Tables:

Fig. 1 Fig. 1: 27Al 1D MAS (a) and 2D DQ/SQ (b) spectra of ASA samples with different concentrations of aluminum, as indicated on the figure.

Save / Share:

Works referenced in this record:

Determining the Surface Structure of Silicated Alumina Catalysts via Isotopic Enrichment and Dynamic Nuclear Polarization Surface-Enhanced NMR Spectroscopy
journal, October 2017

  • Rankin, Andrew G. M.; Webb, Paul B.; Dawson, Daniel M.
  • The Journal of Physical Chemistry C, Vol. 121, Issue 41
  • DOI: 10.1021/acs.jpcc.7b08137

Strong Brønsted Acidity in Amorphous Silica−Aluminas
journal, July 2007

  • Xu, Bin; Sievers, Carsten; Lercher, Johannes A.
  • The Journal of Physical Chemistry C, Vol. 111, Issue 32
  • DOI: 10.1021/jp073677i

Medium-Range Order in Sol–Gel Prepared Al 2 O 3 –SiO 2 Glasses: New Results from Solid-State NMR
journal, February 2014

  • Ren, Jinjun; Zhang, Long; Eckert, Hellmut
  • The Journal of Physical Chemistry C, Vol. 118, Issue 9
  • DOI: 10.1021/jp412774h

Double-quantum homonuclear NMR correlation spectroscopy of quadrupolar nuclei subjected to magic-angle spinning and high magnetic field
journal, October 2009


Increasing the Brønsted Acidity of Flame-Derived Silica/Alumina up to Zeolitic Strength
journal, September 2010

  • Huang, Jun; van Vegten, Niels; Jiang, Yijiao
  • Angewandte Chemie International Edition, Vol. 49, Issue 42
  • DOI: 10.1002/anie.201003391

Dynamic Nuclear Polarization of 17 O: Direct Polarization
journal, November 2013

  • Michaelis, Vladimir K.; Corzilius, Björn; Smith, Albert A.
  • The Journal of Physical Chemistry B, Vol. 117, Issue 48
  • DOI: 10.1021/jp408440z

A novel application of nuclear spin-echo double-resonance to aluminophosphates and aluminosilicates
journal, November 1990


Violations of Löwenstein's rule in zeolites
journal, January 2017

  • Fletcher, Rachel E.; Ling, Sanliang; Slater, Ben
  • Chem. Sci., Vol. 8, Issue 11
  • DOI: 10.1039/C7SC02531A

Evaluation of Cross-Correlation Effects and Measurement of One-Bond Couplings in Proteins with Short Transverse Relaxation Times
journal, March 2000

  • Kontaxis, Georg; Clore, G. Marius; Bax, Ad
  • Journal of Magnetic Resonance, Vol. 143, Issue 1
  • DOI: 10.1006/jmre.1999.1979

Low Silica MCM-41 Composites and Mesoporous Solids
journal, May 1999

  • Janicke, M. T.; Landry, C. C.; Christiansen, S. C.
  • Chemistry of Materials, Vol. 11, Issue 5
  • DOI: 10.1021/cm981135v

Brønsted acidity of amorphous silica–alumina: The molecular rules of proton transfer
journal, December 2011

  • Leydier, Fabien; Chizallet, Céline; Chaumonnot, Alexandra
  • Journal of Catalysis, Vol. 284, Issue 2
  • DOI: 10.1016/j.jcat.2011.08.015

Detailed analysis of the S-RESPDOR solid-state NMR method for inter-nuclear distance measurement between spin-1/2 and quadrupolar nuclei
journal, February 2012


Solid-state nuclear magnetic resonance investigations of the nature, property, and activity of acid sites on solid catalysts
journal, May 2011


NMR Crystallography of Zeolites: Refinement of an NMR-Solved Crystal Structure Using ab Initio Calculations of 29 Si Chemical Shift Tensors
journal, May 2008

  • Brouwer, Darren H.
  • Journal of the American Chemical Society, Vol. 130, Issue 20
  • DOI: 10.1021/ja800227f

Nature, Structure and Strength of the Acidic Sites of Amorphous Silica Alumina:  An IR and NMR Study
journal, August 2006

  • Crépeau, G.; Montouillout, V.; Vimont, A.
  • The Journal of Physical Chemistry B, Vol. 110, Issue 31
  • DOI: 10.1021/jp062252d

Windowed R-PDLF recoupling: A flexible and reliable tool to characterize molecular dynamics
journal, September 2013

  • Gansmüller, Axel; Simorre, Jean-Pierre; Hediger, Sabine
  • Journal of Magnetic Resonance, Vol. 234
  • DOI: 10.1016/j.jmr.2013.06.017

Highly Dispersed SiO x /Al 2 O 3 Catalysts Illuminate the Reactivity of Isolated Silanol Sites
journal, September 2015

  • Mouat, Aidan R.; George, Cassandra; Kobayashi, Takeshi
  • Angewandte Chemie International Edition, Vol. 54, Issue 45
  • DOI: 10.1002/anie.201505452

A graph theory approach to structure solution of network materials from two-dimensional solid-state NMR data
journal, January 2013

  • Brouwer, Darren H.; Langendoen, Kevin P.
  • CrystEngComm, Vol. 15, Issue 43
  • DOI: 10.1039/c3ce41058g

Double-quantum homonuclear correlation magic angle sample spinning nuclear magnetic resonance spectroscopy of dipolar-coupled quadrupolar nuclei
journal, February 2004

  • Mali, Gregor; Fink, Gerhard; Taulelle, Francis
  • The Journal of Chemical Physics, Vol. 120, Issue 6
  • DOI: 10.1063/1.1638741

Characterizing Substrate–Surface Interactions on Alumina-Supported Metal Catalysts by Dynamic Nuclear Polarization-Enhanced Double-Resonance NMR Spectroscopy
journal, February 2017

  • Perras, Frédéric A.; Padmos, J. Daniel; Johnson, Robert L.
  • Journal of the American Chemical Society, Vol. 139, Issue 7
  • DOI: 10.1021/jacs.6b11408

Direct 17 O dynamic nuclear polarization of single-site heterogeneous catalysts
journal, January 2018

  • Perras, Frédéric A.; Boteju, Kasuni C.; Slowing, Igor I.
  • Chemical Communications, Vol. 54, Issue 28
  • DOI: 10.1039/C8CC00293B

Predicting Absolute and Site Specific Acidities for Zeolite Catalysts by a Combined Quantum Mechanics/Interatomic Potential Function Approach
journal, November 1997

  • Eichler, Uwe; Brändle, Martin; Sauer, Joachim
  • The Journal of Physical Chemistry B, Vol. 101, Issue 48
  • DOI: 10.1021/jp971779a

FT-IR Studies on Light Olefin Skeletal Isomerization Catalysis
journal, October 1998

  • Trombetta, Marcella; Busca, Guido; Rossini, Stefano
  • Journal of Catalysis, Vol. 179, Issue 2
  • DOI: 10.1006/jcat.1998.2251

REDOR Dephasing by Multiple Spins in the Presence of Molecular Motion
journal, August 1997


A Solid-State NMR Method for Solution of Zeolite Crystal Structures
journal, July 2005

  • Brouwer, Darren H.; Darton, Richard J.; Morris, Russell E.
  • Journal of the American Chemical Society, Vol. 127, Issue 29
  • DOI: 10.1021/ja052306h

Acidity of Amorphous Silica–Alumina: From Coordination Promotion of Lewis Sites to Proton Transfer
journal, January 2010


The Initial Stages of Solid Acid-Catalyzed Reactions of Adsorbed Propane. A Mechanistic Study by in Situ MAS NMR
journal, January 2004

  • Haouas, Mohamed; Walspurger, Stéphane; Taulelle, Francis
  • Journal of the American Chemical Society, Vol. 126, Issue 2
  • DOI: 10.1021/ja0377549

Enhanced symmetry-based dipolar recoupling in solid-state NMR
journal, August 2003


Brønsted/Lewis Acid Synergy in Dealuminated HY Zeolite:  A Combined Solid-State NMR and Theoretical Calculation Study
journal, September 2007

  • Li, Shenhui; Zheng, Anmin; Su, Yongchao
  • Journal of the American Chemical Society, Vol. 129, Issue 36
  • DOI: 10.1021/ja072767y

Acid Catalysts in Industrial Hydrocarbon Chemistry
journal, November 2007

  • Busca, Guido
  • Chemical Reviews, Vol. 107, Issue 11, p. 5366-5410
  • DOI: 10.1021/cr068042e

Recoupling of heteronuclear dipolar interactions in solid state magic-angle spinning NMR by simultaneous frequency and amplitude modulation
journal, July 1997


Chemoselective Hydrogenation with Supported Organoplatinum(IV) Catalyst on Zn(II)-Modified Silica
journal, February 2018

  • Camacho-Bunquin, Jeffrey; Ferrandon, Magali; Sohn, Hyuntae
  • Journal of the American Chemical Society, Vol. 140, Issue 11
  • DOI: 10.1021/jacs.7b11981

Dynamic nuclear polarization at high magnetic fields
journal, February 2008

  • Maly, Thorsten; Debelouchina, Galia T.; Bajaj, Vikram S.
  • The Journal of Chemical Physics, Vol. 128, Issue 5
  • DOI: 10.1063/1.2833582

Large Molecular Weight Nitroxide Biradicals Providing Efficient Dynamic Nuclear Polarization at Temperatures up to 200 K
journal, August 2013

  • Zagdoun, Alexandre; Casano, Gilles; Ouari, Olivier
  • Journal of the American Chemical Society, Vol. 135, Issue 34
  • DOI: 10.1021/ja405813t

A detailed structural characterization of quartz on heating through the α–β phase transition
journal, August 2001


Dynamic Nuclear Polarization Enhanced Natural Abundance 17 O Spectroscopy
journal, February 2013

  • Blanc, Frédéric; Sperrin, Luke; Jefferson, David A.
  • Journal of the American Chemical Society, Vol. 135, Issue 8
  • DOI: 10.1021/ja4004377

Detection of Brønsted acid sites in zeolite HY with high-field 17O-MAS-NMR techniques
journal, February 2005

  • Peng, Luming; Liu, Yun; Kim, Namjun
  • Nature Materials, Vol. 4, Issue 3
  • DOI: 10.1038/nmat1332

Surface Enhanced NMR Spectroscopy by Dynamic Nuclear Polarization
journal, November 2010

  • Lesage, Anne; Lelli, Moreno; Gajan, David
  • Journal of the American Chemical Society, Vol. 132, Issue 44
  • DOI: 10.1021/ja104771z

Computer-intensive simulation of solid-state NMR experiments using SIMPSON
journal, September 2014

  • Tošner, Zdeněk; Andersen, Rasmus; Stevensson, Baltzar
  • Journal of Magnetic Resonance, Vol. 246
  • DOI: 10.1016/j.jmr.2014.07.002

Brønsted acid sites of zeolitic strength in amorphous silica-alumina
journal, January 2010

  • Poduval, Dilip G.; van Veen, J. A. Rob; Rigutto, Marcello S.
  • Chemical Communications, Vol. 46, Issue 20
  • DOI: 10.1039/c000019a

Diphosphine probe molecules and solid-state NMR investigations of proximity between acidic sites in zeolite HY
journal, December 2008


Atomic Description of the Interface between Silica and Alumina in Aluminosilicates through Dynamic Nuclear Polarization Surface-Enhanced NMR Spectroscopy and First-Principles Calculations
journal, August 2015

  • Valla, Maxence; Rossini, Aaron J.; Caillot, Maxime
  • Journal of the American Chemical Society, Vol. 137, Issue 33
  • DOI: 10.1021/jacs.5b06134

Measurement of NH Bond Lengths by Fast Magic-Angle Spinning Solid-State NMR Spectroscopy:  A New Method for the Quantification of Hydrogen Bonds
journal, November 2001

  • Zhao, Xin; Sudmeier, James L.; Bachovchin, William W.
  • Journal of the American Chemical Society, Vol. 123, Issue 44
  • DOI: 10.1021/ja016328p

NMR investigation of proton mobility in zeolites
journal, April 2008

  • Kanellopoulos, Johanna; Gottert, Clemens; Schneider, Denis
  • Journal of Catalysis, Vol. 255, Issue 1
  • DOI: 10.1016/j.jcat.2008.01.028

Measurement of hetero-nuclear distances using a symmetry-based pulse sequence in solid-state NMR
journal, January 2010

  • Chen, Lei; Wang, Qiang; Hu, Bingwen
  • Physical Chemistry Chemical Physics, Vol. 12, Issue 32
  • DOI: 10.1039/b926546e

Symmetry-Based 29 Si Dipolar Recoupling Magic Angle Spinning NMR Spectroscopy:  A New Method for Investigating Three-Dimensional Structures of Zeolite Frameworks
journal, January 2005

  • Brouwer, Darren H.; Kristiansen, Per Eugen; Fyfe, Colin A.
  • Journal of the American Chemical Society, Vol. 127, Issue 2
  • DOI: 10.1021/ja043228l

Pseudo-Bridging Silanols as Versatile Brønsted Acid Sites of Amorphous Aluminosilicate Surfaces
journal, January 2009

  • Chizallet, Céline; Raybaud, Pascal
  • Angewandte Chemie International Edition, Vol. 48, Issue 16
  • DOI: 10.1002/anie.200804580

IR studies of OH groups in mesoporous aluminosilicates
journal, March 2006


Frequency-switched pulse sequences: Homonuclear decoupling and dilute spin NMR in solids
journal, March 1989


Solid-State NMR Study of MCM-41-type Mesoporous Silica Nanoparticles
journal, March 2005

  • Trébosc, Julien; Wiench, Jerzy W.; Huh, Seong
  • Journal of the American Chemical Society, Vol. 127, Issue 9
  • DOI: 10.1021/ja043567e

A General Protocol for Determining the Structures of Molecularly Ordered but Noncrystalline Silicate Frameworks
journal, April 2013

  • Brouwer, Darren H.; Cadars, Sylvian; Eckert, Juergen
  • Journal of the American Chemical Society, Vol. 135, Issue 15
  • DOI: 10.1021/ja311649m

Dynamic Nuclear Polarization Surface Enhanced NMR Spectroscopy
journal, March 2013

  • Rossini, Aaron J.; Zagdoun, Alexandre; Lelli, Moreno
  • Accounts of Chemical Research, Vol. 46, Issue 9
  • DOI: 10.1021/ar300322x

Oxygen-17 dynamic nuclear polarisation enhanced solid-state NMR spectroscopy at 18.8 T
journal, January 2017

  • Brownbill, Nick J.; Gajan, David; Lesage, Anne
  • Chemical Communications, Vol. 53, Issue 17
  • DOI: 10.1039/C6CC09743J

Symmetry-based recoupling of 17O–1H spin pairs in magic-angle spinning NMR
journal, March 2006

  • van Beek, Jacco D.; Dupree, Ray; Levitt, Malcolm H.
  • Journal of Magnetic Resonance, Vol. 179, Issue 1
  • DOI: 10.1016/j.jmr.2005.11.003

SIMPSON: A General Simulation Program for Solid-State NMR Spectroscopy
journal, December 2000

  • Bak, Mads; Rasmussen, Jimmy T.; Nielsen, Niels Chr
  • Journal of Magnetic Resonance, Vol. 147, Issue 2
  • DOI: 10.1006/jmre.2000.2179

Natural Abundance 17 O DNP Two-Dimensional and Surface-Enhanced NMR Spectroscopy
journal, June 2015

  • Perras, Frédéric A.; Kobayashi, Takeshi; Pruski, Marek
  • Journal of the American Chemical Society, Vol. 137, Issue 26
  • DOI: 10.1021/jacs.5b03905

Brønsted acid sites based on penta-coordinated aluminum species
journal, December 2016

  • Wang, Zichun; Jiang, Yijiao; Lafon, Olivier
  • Nature Communications, Vol. 7, Issue 1
  • DOI: 10.1038/ncomms13820

Mapping of Functional Groups in Metal-Organic Frameworks
journal, July 2013


Measurements of motionally averaged heteronuclear dipolar couplings in MAS NMR using R-type recoupling
journal, June 2004

  • Dvinskikh, Sergey V.; Zimmermann, Herbert; Maliniak, Arnold
  • Journal of Magnetic Resonance, Vol. 168, Issue 2
  • DOI: 10.1016/j.jmr.2004.03.001

Acidity Characterization of Amorphous Silica–Alumina
journal, October 2012

  • Hensen, Emiel J. M.; Poduval, Dilip G.; Degirmenci, Volkan
  • The Journal of Physical Chemistry C, Vol. 116, Issue 40
  • DOI: 10.1021/jp309182f

Natural Abundance 17 O DNP NMR Provides Precise O−H Distances and Insights into the Brønsted Acidity of Heterogeneous Catalysts
journal, June 2017

  • Perras, Frédéric A.; Wang, Zhuoran; Naik, Pranjali
  • Angewandte Chemie International Edition, Vol. 56, Issue 31
  • DOI: 10.1002/anie.201704032

Investigation of Al-O-Al sites in an Na-aluminosilicate glass
journal, June 2004

  • Yildirim, Erdem; Dupree, Ray
  • Bulletin of Materials Science, Vol. 27, Issue 3
  • DOI: 10.1007/BF02708516

Dynamic Nuclear Polarization of Oxygen-17
journal, July 2012

  • Michaelis, Vladimir K.; Markhasin, Evgeny; Daviso, Eugenio
  • The Journal of Physical Chemistry Letters, Vol. 3, Issue 15
  • DOI: 10.1021/jz300742w

Heteronuclear polarization transfer by symmetry-based recoupling sequences in solid-state NMR
journal, September 2004

  • Zhao, Xin; Hoffbauer, Wilfried; Schmedt auf der Günne, Jörn
  • Solid State Nuclear Magnetic Resonance, Vol. 26, Issue 2
  • DOI: 10.1016/j.ssnmr.2003.11.001

Direct Spectroscopic Evidence for Isolated Silanols in SiO x /Al 2 O 3 and Their Formation Mechanism
journal, March 2017

  • Mouat, Aidan R.; Kobayashi, Takeshi; Pruski, Marek
  • The Journal of Physical Chemistry C, Vol. 121, Issue 11
  • DOI: 10.1021/acs.jpcc.6b11196

Inorganic Solid Acids and Their Use in Acid-Catalyzed Hydrocarbon Reactions
journal, May 1995


NMR crystallography of zeolites: How far can we go without diffraction data?
journal, May 2018

  • Brouwer, Darren H.; Van Huizen, Jared
  • Magnetic Resonance in Chemistry, Vol. 57, Issue 5
  • DOI: 10.1002/mrc.4748

Viscosity, fragility, and configurational entropy of melts along the join SiO 2 -NaAlSiO 4
journal, October 1997

  • Toplis, Michael J.; Dingwell, Donald B.; Hess, Kai-Uwe
  • American Mineralogist, Vol. 82, Issue 9-10
  • DOI: 10.2138/am-1997-9-1014

Observation of proximities between spin-1/2 and quadrupolar nuclei: Which heteronuclear dipolar recoupling method is preferable?
journal, October 2012

  • Lu, X.; Lafon, O.; Trébosc, J.
  • The Journal of Chemical Physics, Vol. 137, Issue 14
  • DOI: 10.1063/1.4753987

In situ H and C MAS NMR study of the mechanism of H/D exchange for deuterated propane adsorbed on H-ZSM-5
journal, October 2005


The rheology of collapsing zeolites amorphized by temperature and pressure
journal, August 2003

  • Greaves, G. N.; Meneau, F.; Sapelkin, A.
  • Nature Materials, Vol. 2, Issue 9
  • DOI: 10.1038/nmat963

CO adsorption on amorphous silica–alumina: electrostatic or Brønsted acidity probe?
journal, January 2012

  • Leydier, Fabien; Chizallet, Céline; Costa, Dominique
  • Chemical Communications, Vol. 48, Issue 34
  • DOI: 10.1039/c2cc30655g

Al–O–Al and Si–O–Si sites in framework aluminosilicate glasses with Si/Al=1: quantification of framework disorder
journal, May 2000


Probing Surface Hydrogen Bonding and Dynamics by Natural Abundance, Multidimensional, 17 O DNP-NMR Spectroscopy
journal, May 2016

  • Perras, Frédéric A.; Chaudhary, Umesh; Slowing, Igor I.
  • The Journal of Physical Chemistry C, Vol. 120, Issue 21
  • DOI: 10.1021/acs.jpcc.6b02579

Dynamic Nuclear Polarization Solid-State NMR in Heterogeneous Catalysis Research
journal, October 2015

  • Kobayashi, Takeshi; Perras, Frédéric A.; Slowing, Igor I.
  • ACS Catalysis, Vol. 5, Issue 12
  • DOI: 10.1021/acscatal.5b02039

Probing the surface of γ-Al 2 O 3 by oxygen-17 dynamic nuclear polarization enhanced solid-state NMR spectroscopy
journal, January 2018

  • Li, Wenzheng; Wang, Qiang; Xu, Jun
  • Physical Chemistry Chemical Physics, Vol. 20, Issue 25
  • DOI: 10.1039/C8CP03132K

Br⊘nsted Acid Sites in Zeolites Characterized by Multinuclear Solid-State NMR Spectroscopy
journal, November 1997


    Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.