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1

Determination of the distribution of species in supported metal catalysts by X-ray photoelectron spectroscopy

Michael A. Stranick, Marwan Houalla, David M. Hercules

Journal:

Journal of Catalysis

Year:

1987

Language:

english

File:

PDF, 745 KB

english, 1987

2

Hydrodesulfurization of dibenzothiophene catalyzed by sulfided CoO-MoO3γ-Al2O3: The reaction network

Marwan Houalla, N. K. Nag, A. V. Sapre, D. H. Broderick, B. C. Gates

Journal:

Year:

1978

Language:

english

File:

PDF, 788 KB

english, 1978

3

The effect of the isoelectric point on the adsorption of molybdates on fluoride-modified aluminas

Francis M. Mulcahy, Marwan Houalla, David M. Hercules

Journal:

Journal of Catalysis

Year:

1987

Language:

english

File:

PDF, 417 KB

english, 1987

4

The adsorption of metal oxyanions on alumina

Francis M. Mulcahy, Martin J. Fay, Andrew Proctor, Marwan Houalla, David M. Hercules

Journal:

Journal of Catalysis

Year:

1990

Language:

english

File:

PDF, 747 KB

english, 1990

5

Correlations between Acidity, Surface Structure, and Catalytic Activity of Niobium Oxide Supported on Zirconia

Onfroy, Thomas, Clet, Guillaume, Houalla, Marwan

Journal:

Journal of Physical Chemistry B

Year:

2005

Language:

english

File:

PDF, 123 KB

english, 2005

6

Surface structure and catalytic performance of niobium oxides supported on titania

Thomas Onfroy, Olga V. Manoilova, Saeed B. Bukallah, David M. Hercules, Guillaume Clet, Marwan Houalla

Journal:

Applied Catalysis A: General

Year:

2007

Language:

english

File:

PDF, 490 KB

english, 2007

7

Determination of the surface coverage of Mo/Al2O3 catalysts

Virginia Sazo, Lilian Gonzales, José Goldwasser, Marwan Houalla, David M. Hercules

Journal:

Surface and Interface Analysis

Year:

1995

Language:

english

File:

PDF, 613 KB

english, 1995

8

Determination of sulfur forms on coal surfaces by X-ray photoelectron spectroscopy

Lucinda R. Hittle, Andrew G. Sharkey, Marwan Houalla, Andrew Proctor, David M. Hercules, Badie I. Morsi

Journal:

Year:

1993

Language:

english

File:

PDF, 347 KB

english, 1993

9

Quantitative Raman characterization of MoTiO22 catalysts

Roger B. Quincy, Marwan Houalla, David M. Hercules

Journal:

Journal of Catalysis

Year:

1987

Language:

english

File:

PDF, 623 KB

english, 1987

10

The influence of TiO2 on the speciation and hydrogenation activity of Co/Al2O3 catalysts

Michael A. Stranick, Marwan Houalla, David M. Hercules

Journal:

Journal of Catalysis

Year:

1990

Language:

english

File:

PDF, 1008 KB

english, 1990

11

Influence of thorium on the surface structure and CO hydrogenation activity of silica-supported nickel catalysts

Jeffrey S. Ledford, Marwan Houalla, Andrew Proctor, David M. Hercules

Journal:

Journal of Catalysis

Year:

1990

Language:

english

File:

PDF, 735 KB

english, 1990

12

The structure and activity of titania supported cobalt catalysts

Sui-Wen Ho, Jose M. Cruz, Marwan Houalla, David M. Hercules

Journal:

Journal of Catalysis

Year:

1992

Language:

english

File:

PDF, 823 KB

english, 1992

13

Ring opening of decalin and methylcyclohexane over bifunctional Ir/WO3/Al2O3 catalysts

Moraes, Rodrigo, Thomas, Karine, Thomas, Sébastien, Van Donk, Sander, Grasso, Giacomo, Gilson, Jean-Pierre, Houalla, Marwan

Journal:

Journal of Catalysis

Year:

2013

Language:

english

File:

PDF, 1.76 MB

english, 2013

14

Surface Coverage of Rhenium-Alumina Catalysts

Mulcahy, Francis M., Goldwasser, Jos�, Proctor, Andrew, Houalla, Marwan, Hercules, David M.

Journal:

Surface and Interface Analysis

Year:

1996

Language:

english

File:

PDF, 496 KB

english, 1996

15

Study of the Oxidation States of Chromium in Substituted and Supported Cr-silicoaluminophosphate Molecular Sieves

Giraldo, Luz, Pfaff, Carolina, L�pez, Carmen M., Machado, Francisco, M�ndez, Bernardo, Goldwasser, Josei, de Agudelo, M. Magdalena Ramiirez, Rond�n, Sonia, Houalla, Marwan, Hercules, David M.

Journal:

Surface and Interface Analysis

Year:

1996

Language:

english

File:

PDF, 456 KB

english, 1996

16

Surface coverage of WO3/ZrO2 catalysts measured by ion scattering spectroscopy and low temperature CO adsorption

Vaidyanathan, Nithya, Houalla, Marwan, Hercules, David M.

Journal:

Surface and Interface Analysis

Year:

1998

Language:

english

File:

PDF, 267 KB

english, 1998

17

Determination of the surface coverage of Mo/TiO2 catalysts by ISS and CO2 chemisorption

Rondon, Sonia, Houalla, Marwan, Hercules, David M.

Journal:

Surface and Interface Analysis

Year:

1998

Language:

english

File:

PDF, 287 KB

english, 1998

18

Investigation of static SIMS signal enhancement by halide acid substrate treatment

Choi, Bernard K., Gusev, Arkady I., Houalla, Marwan, Hercules, David M.

Journal:

Surface and Interface Analysis

Year:

2000

Language:

english

File:

PDF, 266 KB

english, 2000

19

Characterization of isopoly metal oxyanions using electrospray time-of-flight mass spectrometry

Craig S. Truebenbach, Marwan Houalla, David M. Hercules

Journal:

Journal of Mass Spectrometry

Year:

2000

Language:

english

File:

PDF, 1.55 MB

english, 2000

20

Characterization of supported Nb catalysts by ToF-SIMS

Saeed B. Bukallah, Marwan Houalla, David M. Hercules

Journal:

Surface and Interface Analysis

Year:

2000

Language:

english

File:

PDF, 80 KB

english, 2000

21

Electrospray and matrix-assisted laser desorption/ionization mass spectral characterization of linear single nylon-6 oligomers

Lu Shan, Renata Murgasova, David M. Hercules, Marwan Houalla

Journal:

Journal of Mass Spectrometry

Year:

2001

Language:

english

File:

PDF, 220 KB

english, 2001

22

Quantitation of species on catalyst surfaces

David M. Hercules, Marwan Houalla, Andrew Proctor, Joseph N. Fiedor

Journal:

Analytica Chimica Acta

Year:

1993

Language:

english

File:

PDF, 811 KB

english, 1993

23

Influence of W loading on the environment of Si in WO3/ZrO2–SiO2 catalysts

Sebastien Lecarpentier, Jacob van Gestel, Karine Thomas, Jean-Pierre Gilson, Marwan Houalla

Journal:

Applied Catalysis A: General

Year:

2010

Language:

english

File:

PDF, 602 KB

english, 2010

24

Quantitative IR characterization of the acidity of various oxide catalysts

Thomas Onfroy, Guillaume Clet, Marwan Houalla

Journal:

Microporous and Mesoporous Materials

Year:

2005

Language:

english

File:

PDF, 1.17 MB

english, 2005

25

Quantitative relationship between the nature of surface species and the catalytic activity of tungsten oxides supported on crystallized titania

Thomas Onfroy, Vanessa Lebarbier, Guillaume Clet, Marwan Houalla

Journal:

Journal of Molecular Catalysis A: Chemical

Year:

2010

Language:

english

File:

PDF, 648 KB

english, 2010

26

The spectroscopic characterization of intermetallic synthesis gas conversion catalysts and the correlation of their activity with surface structure

Marwan Houalla, Tuan A. Dang, Charles L. Kibby, Leonidas Petrakis, David M. Hercules

Journal:

Applications of Surface Science

Year:

1984

Language:

english

File:

PDF, 764 KB

english, 1984

27

Study of Ir/WO3/Al2O3 ring opening catalysts

Jie-Won Park, Karine Thomas, Jacob van Gestel, Jean-Pierre Gilson, Christine Collet, Jean-Pierre Dath, Marwan Houalla

Journal:

Applied Catalysis A: General

Year:

2010

Language:

english

File:

PDF, 910 KB

english, 2010

28

Determination of the distribution of molybdenum oxidation states in reduced Mo/TiO2 catalysts by factor analysis and curve fitting

Joseph N. Fiedor, Andrew Proctor, Marwan Houalla, David M. Hercules

Journal:

Surface and Interface Analysis

Year:

1993

Language:

english

File:

PDF, 831 KB

english, 1993

29

Ion scattering and electron spectroscopic study of the surface coverage of V/Al2O3 catalysts

Mary A. Eberhardt, Marwan Houalla, David M. Hercules

Journal:

Surface and Interface Analysis

Year:

1993

Language:

english

File:

PDF, 374 KB

english, 1993

30

Determination of the distribution of chromium oxidation states in reduced Cr/Al2O3 catalysts from XPS by factor analysis and curve fitting

Stephanie J. Scierka, Andrew Proctor, Marwan Houalla, Joseph N. Fiedor, David M. Hercules

Journal:

Surface and Interface Analysis

Year:

1993

Language:

english

File:

PDF, 734 KB

english, 1993

31

Monitoring the surface coverage of W/TiO2 catalysts by ion scattering spectroscopy

Joseph N. Fiedor, Marwan Houalla, Andrew Proctor, David M. Hercules

Journal:

Surface and Interface Analysis

Year:

1995

Language:

english

File:

PDF, 437 KB

english, 1995

32

Study of the reduction behavior of W/TiO2 catalysts by XPS using curve fitting, deconvolution and factor analysis

Joseph N. Fiedor, Andrew Proctor, Marwan Houalla, David M. Hercules

Journal:

Surface and Interface Analysis

Year:

1995

Language:

english

File:

PDF, 821 KB

english, 1995

33

Determination of the Mo surface environment of Mo/TiO2catalysts by EXAFS, XANES and PCA

Martin J. Fay, Andrew Proctor, Douglas P. Hoffmann, Marwan Houalla, David M. Hercules

Journal:

Microchimica Acta

Year:

1992

Language:

english

File:

PDF, 780 KB

english, 1992

34

EXAFS characterization of Ti/Al2O3supports and Co/Ti/Al2O3catalysts

Martin J. Fay, Andrew Proctor, Douglas P. Hoffmann, Marwan Houalla, David M. Hercules

Journal:

Microchimica Acta

Year:

1996

Language:

english

File:

PDF, 691 KB

english, 1996

35

Surface characterization of WO3/ZrO2catalysts

Nithya Vaidyanathan, David M. Hercules, Marwan Houalla

Journal:

Analytical and Bioanalytical Chemistry

Year:

2002

Language:

english

File:

PDF, 124 KB

english, 2002

36

Characterization of isopoly tungstate using time-of-flight electrospray mass spectrometry

Craig S. Truebenbach, D. M. Hercules, Marwan Houalla

Journal:

Analytical and Bioanalytical Chemistry

Year:

2001

Language:

english

File:

PDF, 226 KB

english, 2001

37

Selection of internal standards for quantitative analysis by matrix-assisted laser desorption-ionization (MALDI) time-of-flight mass spectrometry

William R. Wilkinson, Arkady I. Gusev, Andrew Proctor, Marwan Houalla, David M. Hercules

Journal:

Analytical and Bioanalytical Chemistry

Year:

1997

Language:

english

File:

PDF, 891 KB

english, 1997

38

Acidity of titania-supported tungsten or niobium oxide catalysts: Correlation with catalytic activity

Thomas Onfroy, Guillaume Clet, Saeed B. Bukallah, Tom Visser, Marwan Houalla

Journal:

Applied Catalysis A: General

Year:

2006

Language:

english

File:

PDF, 405 KB

english, 2006

39

Determination of the surface coverage of Re/Al2O3catalysts by ion scattering spectroscopy and low‐temperature CO adsorption

Laura Cornaglia, Marwan Houalla, J. Goldwasser, David M. Hercules

Journal:

Catalysis Letters

Year:

1999

Language:

english

File:

PDF, 49 KB

english, 1999

40

Surface structure and metathesis activity of photoreduced allyl‐based Mo/SiO2catalysts

Jane M. Aigler, Marwan Houalla, David M. Hercules

Journal:

Topics in Catalysis

Year:

2000

Language:

english

File:

PDF, 74 KB

english, 2000

41

Characterization of Polyphosphates by Electrospray Mass Spectrometry

Choi, Bernard K., Hercules, David M., Houalla, Marwan

Journal:

Analytical Chemistry

Year:

2000

Language:

english

File:

PDF, 76 KB

english, 2000

42

Investigation of V Oxidation States in Reduced V/Al2O3Catalysts by XPS

Mary A. Eberhardt, Andrew Proctor, Marwan Houalla, David M. Hercules

Journal:

Journal of Catalysis

Year:

1996

Language:

english

File:

PDF, 266 KB

english, 1996

43

Quantitative Raman and ESCA characterization of titania supported tungsten catalysts

Roger B. Quincy, Marwan Houalla, David M. Hercules

Journal:

Analytical and Bioanalytical Chemistry

Year:

1993

Language:

english

File:

PDF, 769 KB

english, 1993

44

Measurement of the surface coverage of V/Al2O3catalysts by infrared spectroscopy, CO2chemisorption and ion scattering spectroscopy

Mary A. Eberhardt, Marwan Houalla, David M. Hercules

Journal:

Analytical and Bioanalytical Chemistry

Year:

1994

Language:

english

File:

PDF, 541 KB

english, 1994

45

Surface analysis of polymers and catalysts

David M. Hercules, Marwan Houalla

Journal:

Analytical and Bioanalytical Chemistry

Year:

1986

Language:

english

File:

PDF, 1.15 MB

english, 1986

46

Infrared and carbon dioxide chemisorption study of Mo/ZrO2catalysts

Karl Stoppek-Langner, José Goldwasser, Marwan Houalla, David M. Hercules

Journal:

Catalysis Letters

Year:

1995

Language:

english

File:

PDF, 453 KB

english, 1995

47

Effect of the preparation method on the surface coverage of Mo/Al2O3catalysts

José Goldwasser, Carlos Scott, M. Josefina Pérez Zurita, Marwan Houalla, David M. Hercules

Journal:

Catalysis Letters

Year:

1995

Language:

english

File:

PDF, 448 KB

english, 1995

48

Hydrogenation of ethylene over molybdena-alumina catalysts

Eduardo A. Lombardo, Marwan Houalla, W.Keith Hall

Journal:

Journal of Catalysis

Year:

1978

Language:

english

File:

PDF, 1.00 MB

english, 1978

49

Effects of impregnation pH on the surface structure and hydrodesulfurization activity of MoAl2O3 catalysts

Marwan Houalla, Charles L. Kibby, Leonidas Petrakis, David M. Hercules

Journal:

Journal of Catalysis

Year:

1983

Language:

english

File:

PDF, 737 KB

english, 1983

50

Spectroscopic characterization of TiO2Al2O3 and CoAl203TiO2 catalysts

Michael A. Stranick, Marwan Houalla, David M. Hercules

Journal:

Journal of Catalysis

Year:

1987

Language:

english

File:

PDF, 654 KB

english, 1987

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