1
|
Arvay JW, Hong W, Li C, Delgass WN, Ribeiro FH, Harris JW. Kinetics of Propylene Epoxidation over Extracrystalline Gold Active Sites on AU/TS-1 Catalysts. ACS Catal 2022. [DOI: 10.1021/acscatal.2c02213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jeremy W. Arvay
- Charles D. Davidson School of Chemical Engineering, Purdue University, 480 Stadium Mall Drive, West Lafayette, Indiana 47907, United States
| | - Wei Hong
- Department of Chemistry, Purdue University, 560 Oval Drive, West Lafayette, Indiana 47907, United States
| | - Christina Li
- Department of Chemistry, Purdue University, 560 Oval Drive, West Lafayette, Indiana 47907, United States
| | - W. Nicholas Delgass
- Charles D. Davidson School of Chemical Engineering, Purdue University, 480 Stadium Mall Drive, West Lafayette, Indiana 47907, United States
| | - Fabio H. Ribeiro
- Charles D. Davidson School of Chemical Engineering, Purdue University, 480 Stadium Mall Drive, West Lafayette, Indiana 47907, United States
| | - James W. Harris
- Department of Chemical and Biological Engineering, The University of Alabama, 3043 H. M. Comer Hall, 245 7th Avenue, Tuscaloosa, Alabama 35487, United States
| |
Collapse
|
2
|
Shekhar M, Lee WS, Akatay MC, Maciel L, Tang W, Miller JT, Stach EA, Neurock M, Delgass WN, Ribeiro FH. Water-gas shift reaction over supported Au nanoparticles. J Catal 2022. [DOI: 10.1016/j.jcat.2021.12.021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
3
|
|
4
|
Xu L, Ma X, Murria P, Talpade A, Sheng H, Meilan R, Chapple C, Agrawal R, Delgass WN, Ribeiro FH, Kenttämaa HI. Fast Determination of the Lignin Monomer Compositions of Genetic Variants of Poplar via Fast Pyrolysis/Atmospheric Pressure Chemical Ionization Mass Spectrometry. J Am Soc Mass Spectrom 2021; 32:2546-2551. [PMID: 34463497 DOI: 10.1021/jasms.1c00186] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
The proportional content of the phenylpropanoid monomeric units (4-hydroxyphenyl (H), guaiacyl (G), and syringyl (S)) in lignin is of paramount importance in germ plasm screening and for evaluating the results of plant breeding and genetic engineering. This content is usually determined using a tedious and slow (2 days/sample) method involving derivatization followed by reductive cleavage (DFRC) combined with GC/MS or NMR analysis. We report here a fast mass spectrometric method for the determination of the monomer content. This method is based on the fast pyrolysis of a lignin sample inside the ion source area of a linear quadrupole ion trap mass spectrometer. The evaporated pyrolysis products are promptly deprotonated via negative-ion mode atmospheric pressure chemical ionization ((-)APCI) and analyzed by the mass spectrometer to determine the monomer content. The results obtained for the wild-type and six genetic variants of poplar were consistent with those obtained by the DFRC method. However, the mass spectrometry method requires only a small amount of sample (50 μg) and the use of only small amounts of three benign chemicals, methanol, water, and ammonium hydroxide, as opposed to DFRC that requires substantially larger amounts of sample (10 mg or more) and large amounts of several hazardous chemicals. Furthermore, the mass spectrometry method is substantially faster (3 min/sample), more precise, and the data interpretation is more straightforward as only nine ions measured by the mass spectrometer are considered.
Collapse
Affiliation(s)
- Lan Xu
- Department of Chemistry, Purdue University, West Lafayette, Indiana 47907, United States
| | - Xin Ma
- Department of Chemistry, Purdue University, West Lafayette, Indiana 47907, United States
| | - Priya Murria
- Department of Chemistry, Purdue University, West Lafayette, Indiana 47907, United States
| | - Abhijit Talpade
- Davidson School of Chemical Engineering, Purdue University, West Lafayette, Indiana 47907, United States
| | - Huaming Sheng
- Department of Chemistry, Purdue University, West Lafayette, Indiana 47907, United States
- Analytical Science, Merck & Co., Inc., Rahway, New Jersey 07065, United States
| | - Richard Meilan
- Department of Forestry and Natural Resources, Purdue University, West Lafayette, Indiana 47907, United States
| | - Clint Chapple
- Department of Biochemistry, Purdue University, West Lafayette, Indiana 47907, United States
| | - Rakesh Agrawal
- Davidson School of Chemical Engineering, Purdue University, West Lafayette, Indiana 47907, United States
| | - W Nicholas Delgass
- Davidson School of Chemical Engineering, Purdue University, West Lafayette, Indiana 47907, United States
| | - Fabio H Ribeiro
- Davidson School of Chemical Engineering, Purdue University, West Lafayette, Indiana 47907, United States
| | - Hilkka I Kenttämaa
- Department of Chemistry, Purdue University, West Lafayette, Indiana 47907, United States
| |
Collapse
|
5
|
Mitchell GM, Sabnis KD, Sollberger FG, Cui Y, Han CW, Majumdar P, Zeng Z, Miller JT, Greeley J, Ortalan V, Wang C, Delgass WN, Ribeiro FH. Effect of cobalt addition on platinum supported on multi-walled carbon nanotubes for water-gas shift. J Catal 2020. [DOI: 10.1016/j.jcat.2020.07.028] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
|
6
|
Jones CB, Khurana I, Krishna SH, Shih AJ, Delgass WN, Miller JT, Ribeiro FH, Schneider WF, Gounder R. Effects of dioxygen pressure on rates of NOx selective catalytic reduction with NH3 on Cu-CHA zeolites. J Catal 2020. [DOI: 10.1016/j.jcat.2020.05.022] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
7
|
Harris JW, Verma AA, Arvay JW, Shih AJ, Delgass WN, Ribeiro FH. Consequences of product inhibition in the quantification of kinetic parameters. J Catal 2020. [DOI: 10.1016/j.jcat.2020.06.014] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
8
|
Yu Z, Murria P, Easton MW, Degenstein JC, Zhu H, Xu L, Agrawal R, Delgass WN, Ribeiro FH, Kenttämaa HI. Exploring the Reaction Mechanisms of Fast Pyrolysis of Xylan Model Compounds via Tandem Mass Spectrometry and Quantum Chemical Calculations. J Phys Chem A 2019; 123:9149-9157. [PMID: 31545607 DOI: 10.1021/acs.jpca.9b04438] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
A commercial fast pyrolysis probe coupled with a high-resolution tandem mass spectrometer was employed to identify the initial reactions and products of fast pyrolysis of xylobiose and xylotriose, model compounds of xylans. Fragmentation of the reducing end by loss of an ethenediol molecule via ring-opening and retro-aldol condensation was found to be the dominant pyrolysis pathway for xylobiose, and the structure of the product-β-d-xylopyranosylglyceraldehyde-was identified by comparing collision-activated dissociation of the ionized product and an ionized authentic compound. This intermediate can undergo further decomposition via the loss of formaldehyde to form β-d-xylopyranosylglycolaldehyde. In addition, the mechanisms of reactions leading to the loss of a water molecule or dissociation of the glycosidic linkages were explored computationally. These reactions are proposed to occur via pinacol ring contraction and/or Maccoll elimination mechanisms.
Collapse
|
9
|
Wu Z, Bukowski BC, Li Z, Milligan C, Zhou L, Ma T, Wu Y, Ren Y, Ribeiro FH, Delgass WN, Greeley J, Zhang G, Miller JT. Changes in Catalytic and Adsorptive Properties of 2 nm Pt3Mn Nanoparticles by Subsurface Atoms. J Am Chem Soc 2018; 140:14870-14877. [PMID: 30351929 DOI: 10.1021/jacs.8b08162] [Citation(s) in RCA: 72] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Zhenwei Wu
- Davidson School of Chemical Engineering, Purdue University, West Lafayette 47907, Indiana, United States
| | - Brandon C. Bukowski
- Davidson School of Chemical Engineering, Purdue University, West Lafayette 47907, Indiana, United States
| | - Zhe Li
- Department of Chemical and Biological Engineering, Iowa State University, Ames 50011, Iowa, United States
| | - Cory Milligan
- Davidson School of Chemical Engineering, Purdue University, West Lafayette 47907, Indiana, United States
| | - Lin Zhou
- Department of Materials Science, Ames Laboratory, Ames 50012, Iowa, United States
| | - Tao Ma
- Department of Materials Science, Ames Laboratory, Ames 50012, Iowa, United States
| | - Yue Wu
- Department of Chemical and Biological Engineering, Iowa State University, Ames 50011, Iowa, United States
| | - Yang Ren
- X-Ray Science Division, Argonne National Laboratory, Argonne 60439, Illinois, United States
| | - Fabio H. Ribeiro
- Davidson School of Chemical Engineering, Purdue University, West Lafayette 47907, Indiana, United States
| | - W. Nicholas Delgass
- Davidson School of Chemical Engineering, Purdue University, West Lafayette 47907, Indiana, United States
| | - Jeffrey Greeley
- Davidson School of Chemical Engineering, Purdue University, West Lafayette 47907, Indiana, United States
| | - Guanghui Zhang
- Davidson School of Chemical Engineering, Purdue University, West Lafayette 47907, Indiana, United States
| | - Jeffrey T. Miller
- Davidson School of Chemical Engineering, Purdue University, West Lafayette 47907, Indiana, United States
| |
Collapse
|
10
|
Switzer JM, Pletcher PD, Steelman DK, Kim J, Medvedev GA, Abu-Omar MM, Caruthers JM, Delgass WN. Quantitative Modeling of the Temperature Dependence of the Kinetic Parameters for Zirconium Amine Bis(Phenolate) Catalysts for 1-Hexene Polymerization. ACS Catal 2018. [DOI: 10.1021/acscatal.8b01989] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jeffrey M. Switzer
- Davidson School of Chemical Engineering, Purdue University, 480 Stadium Mall Drive, West Lafayette, Indiana 47907, United States
| | - Paul D. Pletcher
- Department of Chemistry, Purdue University, 560 Oval Drive, West Lafayette, Indiana 47907, United States
| | - D. Keith Steelman
- Department of Chemistry, Purdue University, 560 Oval Drive, West Lafayette, Indiana 47907, United States
| | - Jungsuk Kim
- Davidson School of Chemical Engineering, Purdue University, 480 Stadium Mall Drive, West Lafayette, Indiana 47907, United States
| | - Grigori A. Medvedev
- Davidson School of Chemical Engineering, Purdue University, 480 Stadium Mall Drive, West Lafayette, Indiana 47907, United States
| | - Mahdi M. Abu-Omar
- Department of Chemistry, Purdue University, 560 Oval Drive, West Lafayette, Indiana 47907, United States
| | - James M. Caruthers
- Davidson School of Chemical Engineering, Purdue University, 480 Stadium Mall Drive, West Lafayette, Indiana 47907, United States
| | - W. Nicholas Delgass
- Davidson School of Chemical Engineering, Purdue University, 480 Stadium Mall Drive, West Lafayette, Indiana 47907, United States
| |
Collapse
|
11
|
|
12
|
Gunasekara T, Kim J, Preston A, Steelman DK, Medvedev GA, Delgass WN, Sydora OL, Caruthers JM, Abu-Omar MM. Mechanistic Insights into Chromium-Catalyzed Ethylene Trimerization. ACS Catal 2018. [DOI: 10.1021/acscatal.8b00468] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Thilina Gunasekara
- Department of Chemistry, Purdue University, 560 Oval Drive, West Lafayette, Indiana 47907, United States
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106-9510, United States
| | - Jungsuk Kim
- Charles D. Davidson School of Chemical Engineering, Purdue University, Forney Hall of Chemical
Engineering, 480 Stadium Mall Drive, West Lafayette, Indiana 47907, United States
| | - Andrew Preston
- Department of Chemistry, Purdue University, 560 Oval Drive, West Lafayette, Indiana 47907, United States
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106-9510, United States
| | - D. Keith Steelman
- Department of Chemistry, Purdue University, 560 Oval Drive, West Lafayette, Indiana 47907, United States
| | - Grigori A. Medvedev
- Charles D. Davidson School of Chemical Engineering, Purdue University, Forney Hall of Chemical
Engineering, 480 Stadium Mall Drive, West Lafayette, Indiana 47907, United States
| | - W. Nicholas Delgass
- Charles D. Davidson School of Chemical Engineering, Purdue University, Forney Hall of Chemical
Engineering, 480 Stadium Mall Drive, West Lafayette, Indiana 47907, United States
| | - Orson L. Sydora
- Research and Technology, Chevron Phillips Chemical LP, 1862 Kingwood Drive, Kingwood, Texas 77339, United States
| | - James M. Caruthers
- Charles D. Davidson School of Chemical Engineering, Purdue University, Forney Hall of Chemical
Engineering, 480 Stadium Mall Drive, West Lafayette, Indiana 47907, United States
| | - Mahdi M. Abu-Omar
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106-9510, United States
- Department of Chemical Engineering, University of California, Santa Barbara, California 93106-9510, United States
| |
Collapse
|
13
|
Gunasekara T, Kim J, Xiong S, Preston A, Steelman DK, Medvedev GA, Delgass WN, Caruthers JM, Abu-Omar MM. Interaction between Two Active Sites of the Same Catalyst for Macromonomer Enchained Olefin Polymerization. Macromolecules 2017. [DOI: 10.1021/acs.macromol.7b01341] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Thilina Gunasekara
- Brown
Laboratory, Department of Chemistry, Purdue University, 560 Oval Drive, West Lafayette, Indiana 47907, United States
- Department
of Chemistry and Biochemistry, Department of Chemical Engineering, University of California, Santa Barbara, Santa Barbara, California 93106-9510, United States
| | - Jungsuk Kim
- Charles D. Davidson School of Chemical Engineering,
Forney
Hall of Chemical Engineering, Purdue University, 480 Stadium Mall Drive, West Lafayette, Indiana 47907, United States
| | - Silei Xiong
- Charles D. Davidson School of Chemical Engineering,
Forney
Hall of Chemical Engineering, Purdue University, 480 Stadium Mall Drive, West Lafayette, Indiana 47907, United States
| | - Andrew Preston
- Brown
Laboratory, Department of Chemistry, Purdue University, 560 Oval Drive, West Lafayette, Indiana 47907, United States
- Department
of Chemistry and Biochemistry, Department of Chemical Engineering, University of California, Santa Barbara, Santa Barbara, California 93106-9510, United States
| | - D. Keith Steelman
- Brown
Laboratory, Department of Chemistry, Purdue University, 560 Oval Drive, West Lafayette, Indiana 47907, United States
| | - Grigori A. Medvedev
- Charles D. Davidson School of Chemical Engineering,
Forney
Hall of Chemical Engineering, Purdue University, 480 Stadium Mall Drive, West Lafayette, Indiana 47907, United States
| | - W. Nicholas Delgass
- Charles D. Davidson School of Chemical Engineering,
Forney
Hall of Chemical Engineering, Purdue University, 480 Stadium Mall Drive, West Lafayette, Indiana 47907, United States
| | - James M. Caruthers
- Charles D. Davidson School of Chemical Engineering,
Forney
Hall of Chemical Engineering, Purdue University, 480 Stadium Mall Drive, West Lafayette, Indiana 47907, United States
| | - Mahdi M. Abu-Omar
- Department
of Chemistry and Biochemistry, Department of Chemical Engineering, University of California, Santa Barbara, Santa Barbara, California 93106-9510, United States
| |
Collapse
|
14
|
Paolucci C, Khurana I, Parekh AA, Li S, Shih AJ, Li H, Di Iorio JR, Albarracin-Caballero JD, Yezerets A, Miller JT, Delgass WN, Ribeiro FH, Schneider WF, Gounder R. Dynamic multinuclear sites formed by mobilized copper ions in NOxselective catalytic reduction. Science 2017; 357:898-903. [PMID: 28818971 DOI: 10.1126/science.aan5630] [Citation(s) in RCA: 413] [Impact Index Per Article: 59.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2017] [Accepted: 07/07/2017] [Indexed: 12/24/2022]
Affiliation(s)
- Christopher Paolucci
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, IN 46556, USA
| | - Ishant Khurana
- Charles D. Davidson School of Chemical Engineering, Purdue University, 480 Stadium Mall Drive, West Lafayette, IN 47907, USA
| | - Atish A Parekh
- Charles D. Davidson School of Chemical Engineering, Purdue University, 480 Stadium Mall Drive, West Lafayette, IN 47907, USA
| | - Sichi Li
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, IN 46556, USA
| | - Arthur J Shih
- Charles D. Davidson School of Chemical Engineering, Purdue University, 480 Stadium Mall Drive, West Lafayette, IN 47907, USA
| | - Hui Li
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, IN 46556, USA
| | - John R Di Iorio
- Charles D. Davidson School of Chemical Engineering, Purdue University, 480 Stadium Mall Drive, West Lafayette, IN 47907, USA
| | - Jonatan D Albarracin-Caballero
- Charles D. Davidson School of Chemical Engineering, Purdue University, 480 Stadium Mall Drive, West Lafayette, IN 47907, USA
| | - Aleksey Yezerets
- Cummins Inc., 1900 McKinley Avenue, MC 50183, Columbus, IN 47201, USA
| | - Jeffrey T Miller
- Charles D. Davidson School of Chemical Engineering, Purdue University, 480 Stadium Mall Drive, West Lafayette, IN 47907, USA
| | - W Nicholas Delgass
- Charles D. Davidson School of Chemical Engineering, Purdue University, 480 Stadium Mall Drive, West Lafayette, IN 47907, USA
| | - Fabio H Ribeiro
- Charles D. Davidson School of Chemical Engineering, Purdue University, 480 Stadium Mall Drive, West Lafayette, IN 47907, USA
| | - William F Schneider
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, IN 46556, USA.
| | - Rajamani Gounder
- Charles D. Davidson School of Chemical Engineering, Purdue University, 480 Stadium Mall Drive, West Lafayette, IN 47907, USA.
| |
Collapse
|
15
|
Affiliation(s)
- Prateek Mehta
- Department
of Chemical and Biomolecular Engineering, University of Notre Dame, Notre
Dame, Indiana 46556, United States
| | - Jeffrey Greeley
- School
of Chemical Engineering, Purdue University, West Lafayette, Indiana 47907, United States
| | - W. Nicholas Delgass
- School
of Chemical Engineering, Purdue University, West Lafayette, Indiana 47907, United States
| | - William F. Schneider
- Department
of Chemical and Biomolecular Engineering, University of Notre Dame, Notre
Dame, Indiana 46556, United States
| |
Collapse
|
16
|
Preston AZ, Kim J, Medvedev GA, Delgass WN, Caruthers JM, Abu-Omar MM. Steric and Solvation Effects on Polymerization Kinetics, Dormancy, and Tacticity of Zr-Salan Catalysts. Organometallics 2017. [DOI: 10.1021/acs.organomet.7b00295] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Andrew Z. Preston
- Brown
Laboratory, Department of Chemistry, Purdue University, 560 Oval
Drive, West Lafayette, Indiana 47907, United States
| | - Jungsuk Kim
- Charles
D. Davidson School of Chemical Engineering, Purdue University, Forney Hall of Chemical
Engineering, 480 Stadium Mall Drive, West Lafayette, Indiana 47907, United States
| | - Grigori A. Medvedev
- Charles
D. Davidson School of Chemical Engineering, Purdue University, Forney Hall of Chemical
Engineering, 480 Stadium Mall Drive, West Lafayette, Indiana 47907, United States
| | - W. Nicholas Delgass
- Charles
D. Davidson School of Chemical Engineering, Purdue University, Forney Hall of Chemical
Engineering, 480 Stadium Mall Drive, West Lafayette, Indiana 47907, United States
| | - James M. Caruthers
- Charles
D. Davidson School of Chemical Engineering, Purdue University, Forney Hall of Chemical
Engineering, 480 Stadium Mall Drive, West Lafayette, Indiana 47907, United States
| | - Mahdi M. Abu-Omar
- Department
of Chemistry and Biochemistry, Department of Chemical Engineering, University of California, Santa Barbara, Santa Barbara, California 93106, United States
| |
Collapse
|
17
|
Cybulskis VJ, Pradhan SU, Lovón-Quintana JJ, Hock AS, Hu B, Zhang G, Delgass WN, Ribeiro FH, Miller JT. The Nature of the Isolated Gallium Active Center for Propane Dehydrogenation on Ga/SiO2. Catal Letters 2017. [DOI: 10.1007/s10562-017-2028-2] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
18
|
Cui Y, Li Z, Zhao Z, Cybulskis VJ, Sabnis KD, Han CW, Ortalan V, Schneider WF, Greeley J, Delgass WN, Ribeiro FH. Participation of interfacial hydroxyl groups in the water-gas shift reaction over Au/MgO catalysts. Catal Sci Technol 2017. [DOI: 10.1039/c7cy01020f] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
OH at 3750 cm−1 reacts with CO only in the presence of Au, indicating the importance of the Au/MgO interface.
Collapse
|
19
|
Pletcher PD, Switzer JM, Steelman DK, Medvedev GA, Delgass WN, Caruthers JM, Abu-Omar MM. Quantitative Comparative Kinetics of 1-Hexene Polymerization across Group IV Bis-Phenolate Catalysts. ACS Catal 2016. [DOI: 10.1021/acscatal.6b00974] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Paul D. Pletcher
- Brown
Laboratory, Department of Chemistry, Purdue University, 560 Oval
Drive, West Lafayette, Indiana 47907, United States
| | - Jeffrey M. Switzer
- Forney
Hall of Chemical Engineering, School of Chemical Engineering, Purdue University, 480 Stadium Mall Drive, West Lafayette, Indiana 47907, United States
| | - D. Keith Steelman
- Brown
Laboratory, Department of Chemistry, Purdue University, 560 Oval
Drive, West Lafayette, Indiana 47907, United States
| | - Grigori A. Medvedev
- Forney
Hall of Chemical Engineering, School of Chemical Engineering, Purdue University, 480 Stadium Mall Drive, West Lafayette, Indiana 47907, United States
| | - W. Nicholas Delgass
- Forney
Hall of Chemical Engineering, School of Chemical Engineering, Purdue University, 480 Stadium Mall Drive, West Lafayette, Indiana 47907, United States
| | - James M. Caruthers
- Forney
Hall of Chemical Engineering, School of Chemical Engineering, Purdue University, 480 Stadium Mall Drive, West Lafayette, Indiana 47907, United States
| | - Mahdi M. Abu-Omar
- Brown
Laboratory, Department of Chemistry, Purdue University, 560 Oval
Drive, West Lafayette, Indiana 47907, United States
- Forney
Hall of Chemical Engineering, School of Chemical Engineering, Purdue University, 480 Stadium Mall Drive, West Lafayette, Indiana 47907, United States
| |
Collapse
|
20
|
Cybulskis VJ, Wang J, Pazmiño JH, Ribeiro FH, Delgass WN. Isotopic transient studies of sodium promotion of Pt/Al2O3 for the water–gas shift reaction. J Catal 2016. [DOI: 10.1016/j.jcat.2016.04.018] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
|
21
|
Paolucci C, Parekh AA, Khurana I, Di Iorio JR, Li H, Albarracin Caballero JD, Shih AJ, Anggara T, Delgass WN, Miller JT, Ribeiro FH, Gounder R, Schneider WF. Catalysis in a Cage: Condition-Dependent Speciation and Dynamics of Exchanged Cu Cations in SSZ-13 Zeolites. J Am Chem Soc 2016; 138:6028-48. [PMID: 27070199 DOI: 10.1021/jacs.6b02651] [Citation(s) in RCA: 348] [Impact Index Per Article: 43.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Christopher Paolucci
- Department
of Chemical and Biomolecular Engineering, University of Notre Dame, 182 Fitzpatrick Hall, Notre Dame, Indiana 46556, United States
| | - Atish A. Parekh
- School
of Chemical Engineering, Purdue University, 480 Stadium Mall Drive, West Lafayette, Indiana 47907, United States
| | - Ishant Khurana
- School
of Chemical Engineering, Purdue University, 480 Stadium Mall Drive, West Lafayette, Indiana 47907, United States
| | - John R. Di Iorio
- School
of Chemical Engineering, Purdue University, 480 Stadium Mall Drive, West Lafayette, Indiana 47907, United States
| | - Hui Li
- Department
of Chemical and Biomolecular Engineering, University of Notre Dame, 182 Fitzpatrick Hall, Notre Dame, Indiana 46556, United States
| | | | - Arthur J. Shih
- School
of Chemical Engineering, Purdue University, 480 Stadium Mall Drive, West Lafayette, Indiana 47907, United States
| | - Trunojoyo Anggara
- Department
of Chemical and Biomolecular Engineering, University of Notre Dame, 182 Fitzpatrick Hall, Notre Dame, Indiana 46556, United States
| | - W. Nicholas Delgass
- School
of Chemical Engineering, Purdue University, 480 Stadium Mall Drive, West Lafayette, Indiana 47907, United States
| | - Jeffrey T. Miller
- School
of Chemical Engineering, Purdue University, 480 Stadium Mall Drive, West Lafayette, Indiana 47907, United States
| | - Fabio H. Ribeiro
- School
of Chemical Engineering, Purdue University, 480 Stadium Mall Drive, West Lafayette, Indiana 47907, United States
| | - Rajamani Gounder
- School
of Chemical Engineering, Purdue University, 480 Stadium Mall Drive, West Lafayette, Indiana 47907, United States
| | - William F. Schneider
- Department
of Chemical and Biomolecular Engineering, University of Notre Dame, 182 Fitzpatrick Hall, Notre Dame, Indiana 46556, United States
| |
Collapse
|
22
|
Sabnis KD, Cui Y, Akatay MC, Shekhar M, Lee WS, Miller JT, Delgass WN, Ribeiro FH. Water–gas shift catalysis over transition metals supported on molybdenum carbide. J Catal 2015. [DOI: 10.1016/j.jcat.2015.08.017] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
23
|
Sabnis KD, Akatay MC, Cui Y, Sollberger FG, Stach EA, Miller JT, Delgass WN, Ribeiro FH. Probing the active sites for water–gas shift over Pt/molybdenum carbide using multi-walled carbon nanotubes. J Catal 2015. [DOI: 10.1016/j.jcat.2015.07.032] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
24
|
Gharachorlou A, Detwiler MD, Gu XK, Mayr L, Klötzer B, Greeley J, Reifenberger RG, Delgass WN, Ribeiro F, Zemlyanov DY. Trimethylaluminum and Oxygen Atomic Layer Deposition on Hydroxyl-Free Cu(111). ACS Appl Mater Interfaces 2015; 7:16428-39. [PMID: 26158796 PMCID: PMC4528256 DOI: 10.1021/acsami.5b03598] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
Atomic layer deposition (ALD) of alumina using trimethylaluminum (TMA) has technological importance in microelectronics. This process has demonstrated a high potential in applications of protective coatings on Cu surfaces for control of diffusion of Cu in Cu2S films in photovoltaic devices and sintering of Cu-based nanoparticles in liquid phase hydrogenation reactions. With this motivation in mind, the reaction between TMA and oxygen was investigated on Cu(111) and Cu2O/Cu(111) surfaces. TMA did not adsorb on the Cu(111) surface, a result consistent with density functional theory (DFT) calculations predicting that TMA adsorption and decomposition are thermodynamically unfavorable on pure Cu(111). On the other hand, TMA readily adsorbed on the Cu2O/Cu(111) surface at 473 K resulting in the reduction of some surface Cu(1+) to metallic copper (Cu(0)) and the formation of a copper aluminate, most likely CuAlO2. The reaction is limited by the amount of surface oxygen. After the first TMA half-cycle on Cu2O/Cu(111), two-dimensional (2D) islands of the aluminate were observed on the surface by scanning tunneling microscopy (STM). According to DFT calculations, TMA decomposed completely on Cu2O/Cu(111). High-resolution electron energy loss spectroscopy (HREELS) was used to distinguish between tetrahedrally (Altet) and octahedrally (Aloct) coordinated Al(3+) in surface adlayers. TMA dosing produced an aluminum oxide film, which contained more octahedrally coordinated Al(3+) (Altet/Aloct HREELS peak area ratio ≈ 0.3) than did dosing O2 (Altet/Aloct HREELS peak area ratio ≈ 0.5). After the first ALD cycle, TMA reacted with both Cu2O and aluminum oxide surfaces in the absence of hydroxyl groups until film closure by the fourth ALD cycle. Then, TMA continued to react with surface Al-O, forming stoichiometric Al2O3. O2 half-cycles at 623 K were more effective for carbon removal than O2 half-cycles at 473 K or water half-cycles at 623 K. The growth rate was approximately 3-4 Å/cycle for TMA+O2 ALD (O2 half-cycles at 623 K). No preferential growth of Al2O3 on the steps of Cu(111) was observed. According to STM, Al2O3 grows homogeneously on Cu(111) terraces.
Collapse
Affiliation(s)
- Amir Gharachorlou
- School
of Chemical Engineering, Purdue University, West Lafayette, Indiana 47907, United States
| | - Michael D. Detwiler
- School
of Chemical Engineering, Purdue University, West Lafayette, Indiana 47907, United States
| | - Xiang-Kui Gu
- School
of Chemical Engineering, Purdue University, West Lafayette, Indiana 47907, United States
| | - Lukas Mayr
- Institute
for Physical Chemistry, University of Innsbruck, A-6020 Innsbruck, Austria
- Birck Nanotechnology Center, Purdue University, West Lafayette, Indiana 47907, United States
| | - Bernhard Klötzer
- Institute
for Physical Chemistry, University of Innsbruck, A-6020 Innsbruck, Austria
| | - Jeffrey Greeley
- School
of Chemical Engineering, Purdue University, West Lafayette, Indiana 47907, United States
| | - Ronald G. Reifenberger
- Birck Nanotechnology Center, Purdue University, West Lafayette, Indiana 47907, United States
- Department of Physics, Purdue University, West Lafayette, Indiana 47907, United States
| | - W. Nicholas Delgass
- School
of Chemical Engineering, Purdue University, West Lafayette, Indiana 47907, United States
| | - Fabio
H. Ribeiro
- School
of Chemical Engineering, Purdue University, West Lafayette, Indiana 47907, United States
| | - Dmitry Y. Zemlyanov
- Birck Nanotechnology Center, Purdue University, West Lafayette, Indiana 47907, United States
- D. Y. Zemlyanov. E-mail:
| |
Collapse
|
25
|
Di Iorio JR, Bates SA, Verma AA, Delgass WN, Ribeiro FH, Miller JT, Gounder R. The Dynamic Nature of Brønsted Acid Sites in Cu–Zeolites During NOx Selective Catalytic Reduction: Quantification by Gas-Phase Ammonia Titration. Top Catal 2015. [DOI: 10.1007/s11244-015-0387-8] [Citation(s) in RCA: 56] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
26
|
Degenstein JC, Murria P, Easton M, Sheng H, Hurt M, Dow AR, Gao J, Nash JJ, Agrawal R, Delgass WN, Ribeiro FH, Kenttämaa HI. Fast pyrolysis of 13C-labeled cellobioses: gaining insights into the mechanisms of fast pyrolysis of carbohydrates. J Org Chem 2015; 80:1909-14. [PMID: 25562626 DOI: 10.1021/jo5025255] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A fast-pyrolysis probe/tandem mass spectrometer combination was utilized to determine the initial fast-pyrolysis products for four different selectively (13)C-labeled cellobiose molecules. Several products are shown to result entirely from fragmentation of the reducing end of cellobiose, leaving the nonreducing end intact in these products. These findings are in disagreement with mechanisms proposed previously. Quantum chemical calculations were used to identify feasible low-energy pathways for several products. These results provide insights into the mechanisms of fast pyrolysis of cellulose.
Collapse
Affiliation(s)
- John C Degenstein
- School of Chemical Engineering and ‡Department of Chemistry, Purdue University , West Lafayette, Indiana 47907, United States
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
27
|
Degenstein JC, Hurt M, Murria P, Easton M, Choudhari H, Yang L, Riedeman J, Carlsen MS, Nash JJ, Agrawal R, Delgass WN, Ribeiro FH, Kenttämaa HI. Mass spectrometric studies of fast pyrolysis of cellulose. Eur J Mass Spectrom (Chichester) 2015; 21:321-326. [PMID: 26307712 DOI: 10.1255/ejms.1335] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
A fast pyrolysis probe/linear quadrupole ion trap mass spectrometer combination was used to study the primary fast pyrolysis products (those that first leave the hot pyrolysis surface) of cellulose, cellobiose, cellotriose, cellotetraose, cellopentaose, and cellohexaose, as well as of cellobiosan, cellotriosan, and cellopentosan, at 600°C. Similar products with different branching ratios were found for the oligosaccharides and cellulose, as reported previously. However, identical products (with the exception of two) with similar branching ratios were measured for cellotriosan (and cellopentosan) and cellulose. This result demonstrates that cellotriosan is an excellent small-molecule surrogate for studies of the fast pyrolysis of cellulose and also that most fast pyrolysis products of cellulose do not originate from the reducing end. Based on several observations, the fast pyrolysis of cellulose is suggested to initiate predominantly via two competing processes: the formation of anhydro-oligosaccharides, such as cellobiosan, cellotriosan, and cellopentosan (major route), and the elimination of glycolaldehyde (or isomeric) units from the reducing end of oligosaccharides formed from cellulose during fast pyrolysis.
Collapse
Affiliation(s)
- John C Degenstein
- School of Chemical Engineering, Purdue University, West Lafayette, Indiana 47907, USA.
| | - Matt Hurt
- Department of Chemistry, Purdue University, West Lafayette, Indiana 47907, USA.
| | - Priya Murria
- Department of Chemistry, Purdue University, West Lafayette, Indiana 47907, USA.
| | - McKay Easton
- School of Chemical Engineering, Purdue University, West Lafayette, Indiana 47907, USA.
| | | | - Linan Yang
- Department of Chemistry, Purdue University, West Lafayette, Indiana 47907, USA.
| | - James Riedeman
- Department of Chemistry, Purdue University, West Lafayette, Indiana 47907, USA.
| | - Mark S Carlsen
- D epartment of Chemistry, Purdue University, West Lafayette, Indiana 47907, USA.
| | - John J Nash
- Dep artment of Chemistry, Purdue University, West Lafayette, Indiana 47907, USA.
| | - Rakesh Agrawal
- School of Chemical Engineering, Purdue University, West Lafayette, Indiana 47907, USA.
| | - W Nicholas Delgass
- School of Chemical Engineering, Purdue University, West Lafayette, Indiana 47907, USA.
| | - Fabio H Ribeiro
- School of Chemical Engineering, Purdue University, West Lafayette, Indiana 47907, USA.
| | - Hilkka I Kenttämaa
- Department of Chemistry, Purdue University, West Lafayette, Indiana 47907, USA.
| |
Collapse
|
28
|
Paolucci C, Verma AA, Bates SA, Kispersky VF, Miller JT, Gounder R, Delgass WN, Ribeiro FH, Schneider WF. Isolation of the Copper Redox Steps in the Standard Selective Catalytic Reduction on Cu-SSZ-13. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201407030] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
|
29
|
Paolucci C, Verma AA, Bates SA, Kispersky VF, Miller JT, Gounder R, Delgass WN, Ribeiro FH, Schneider WF. Isolation of the Copper Redox Steps in the Standard Selective Catalytic Reduction on Cu-SSZ-13. Angew Chem Int Ed Engl 2014; 53:11828-33. [DOI: 10.1002/anie.201407030] [Citation(s) in RCA: 262] [Impact Index Per Article: 26.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2014] [Indexed: 11/10/2022]
|
30
|
Gharachorlou A, Detwiler MD, Nartova AV, Lei Y, Lu J, Elam JW, Delgass WN, Ribeiro FH, Zemlyanov DY. Palladium nanoparticle formation on TiO₂(110) by thermal decomposition of palladium(II) hexafluoroacetylacetonate. ACS Appl Mater Interfaces 2014; 6:14702-11. [PMID: 25093626 DOI: 10.1021/am504127k] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Palladium nanoparticles were synthesized by thermal decomposition of palladium(II) hexafluoroacetylacetonate (Pd(hfac)2), an atomic layer deposition (ALD) precursor, on a TiO2(110) surface. According to X-ray photoelectron spectroscopy (XPS), Pd(hfac)2 adsorbs on TiO2(110) dissociatively yielding Pd(hfac)(ads), hfac(ads), and adsorbed fragments of the hfac ligand at 300 K. A (2 × 1) surface overlayer was observed by scanning tunneling microscopy (STM), indicating that hfac adsorbs in a bidentate bridging fashion across two Ti 5-fold atoms and Pd(hfac) adsorbs between two bridging oxygen atoms on the surface. Annealing of the Pd(hfac)(ads) and hfac(ads) species at 525 K decomposed the adsorbed hfac ligands, leaving PdO-like species and/or Pd atoms or clusters. Above 575 K, the XPS Pd 3d peaks shift toward lower binding energies and Pd nanoparticles are observed by STM. These observations point to the sintering of Pd atoms and clusters to Pd nanoparticles. The average height of the Pd nanoparticles was 1.2 ± 0.6 nm at 575 K and increased to 1.7 ± 0.5 nm following annealing at 875 K. The Pd coverage was estimated from XPS and STM data to be 0.05 and 0.03 monolayers (ML), respectively, after the first adsorption/decomposition cycle. The amount of palladium deposited on the TiO2(110) surface increased linearly with the number of adsorption/decomposition cycles with a growth rate of 0.05 ML or 0.6 Å per cycle. We suggest that the removal of the hfac ligand and fragments eliminates the nucleation inhibition of Pd nanoparticles previously observed for the Pd(hfac)2 precursor on TiO2.
Collapse
Affiliation(s)
- Amir Gharachorlou
- School of Chemical Engineering, Purdue University , West Lafayette, Indiana 47907, United States
| | | | | | | | | | | | | | | | | |
Collapse
|
31
|
Steelman DK, Xiong S, Medvedev GA, Delgass WN, Caruthers JM, Abu-Omar MM. Effects of Electronic Perturbations on 1-Hexene Polymerization Catalyzed by Zirconium Amine Bisphenolate Complexes. ACS Catal 2014. [DOI: 10.1021/cs5003788] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- D. Keith Steelman
- Brown
Laboratory and the Negishi Brown Institute for Catalysis (NBIC), Department
of Chemistry, Purdue University, 560 Oval Drive, West Lafayette, Indiana 47907, United States
| | - Silei Xiong
- School
of Chemical Engineering, Purdue University, Forney Hall of Chemical Engineering, 480 Stadium Mall Drive, West Lafayette, Indiana 47907, United States
| | - Grigori A. Medvedev
- School
of Chemical Engineering, Purdue University, Forney Hall of Chemical Engineering, 480 Stadium Mall Drive, West Lafayette, Indiana 47907, United States
| | - W. Nicholas Delgass
- School
of Chemical Engineering, Purdue University, Forney Hall of Chemical Engineering, 480 Stadium Mall Drive, West Lafayette, Indiana 47907, United States
| | - James M. Caruthers
- School
of Chemical Engineering, Purdue University, Forney Hall of Chemical Engineering, 480 Stadium Mall Drive, West Lafayette, Indiana 47907, United States
| | - Mahdi M. Abu-Omar
- Brown
Laboratory and the Negishi Brown Institute for Catalysis (NBIC), Department
of Chemistry, Purdue University, 560 Oval Drive, West Lafayette, Indiana 47907, United States
- School
of Chemical Engineering, Purdue University, Forney Hall of Chemical Engineering, 480 Stadium Mall Drive, West Lafayette, Indiana 47907, United States
| |
Collapse
|
32
|
Verma AA, Bates SA, Anggara T, Paolucci C, Parekh AA, Kamasamudram K, Yezerets A, Miller JT, Delgass WN, Schneider WF, Ribeiro FH. NO oxidation: A probe reaction on Cu-SSZ-13. J Catal 2014. [DOI: 10.1016/j.jcat.2014.01.017] [Citation(s) in RCA: 138] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
|
33
|
Bates SA, Delgass WN, Ribeiro FH, Miller JT, Gounder R. Methods for NH3 titration of Brønsted acid sites in Cu-zeolites that catalyze the selective catalytic reduction of NOx with NH3. J Catal 2014. [DOI: 10.1016/j.jcat.2013.12.020] [Citation(s) in RCA: 87] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
34
|
Xiong S, Steelman DK, Medvedev GA, Delgass WN, Abu-Omar MM, Caruthers JM. Selective Degenerative Benzyl Group Transfer in Olefin Polymerization. ACS Catal 2014. [DOI: 10.1021/cs500021g] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Silei Xiong
- School
of Chemical Engineering, Purdue University, Forney Hall of Chemical Engineering, 480 Stadium Mall Drive, West Lafayette, Indiana 47907, United States
| | - D. Keith Steelman
- Brown
Laboratory and the Negishi Brown Institute, Department of Chemistry, Purdue University, 560 Oval Drive, West Lafayette, Indiana 47907, United States
| | - Grigori A. Medvedev
- School
of Chemical Engineering, Purdue University, Forney Hall of Chemical Engineering, 480 Stadium Mall Drive, West Lafayette, Indiana 47907, United States
| | - W. Nicholas Delgass
- School
of Chemical Engineering, Purdue University, Forney Hall of Chemical Engineering, 480 Stadium Mall Drive, West Lafayette, Indiana 47907, United States
| | - Mahdi M. Abu-Omar
- School
of Chemical Engineering, Purdue University, Forney Hall of Chemical Engineering, 480 Stadium Mall Drive, West Lafayette, Indiana 47907, United States
- Brown
Laboratory and the Negishi Brown Institute, Department of Chemistry, Purdue University, 560 Oval Drive, West Lafayette, Indiana 47907, United States
| | - James M. Caruthers
- School
of Chemical Engineering, Purdue University, Forney Hall of Chemical Engineering, 480 Stadium Mall Drive, West Lafayette, Indiana 47907, United States
| |
Collapse
|
35
|
Dietrich PJ, Akatay MC, Sollberger FG, Stach EA, Miller JT, Delgass WN, Ribeiro FH. Effect of Co Loading on the Activity and Selectivity of PtCo Aqueous Phase Reforming Catalysts. ACS Catal 2014. [DOI: 10.1021/cs4008705] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Paul J. Dietrich
- School
of Chemical Engineering, Purdue University, West Lafayette, Indiana 47907, United States
| | - M. Cem Akatay
- School
of Materials Engineering and Birck Nanotechnology Center, Purdue University, West Lafayette, Indiana 47907, United States
| | - Fred G. Sollberger
- School
of Chemical Engineering, Purdue University, West Lafayette, Indiana 47907, United States
| | - Eric A. Stach
- Center
for Functional Nanomaterials, Brookhaven National Laboratory, Upton, New York 11973, United States
| | - Jeffrey T. Miller
- Chemical
Science and Engineering, Argonne National Laboratory, Argonne, Illinois 60439, United States
| | - W. Nicholas Delgass
- School
of Chemical Engineering, Purdue University, West Lafayette, Indiana 47907, United States
| | - Fabio H. Ribeiro
- School
of Chemical Engineering, Purdue University, West Lafayette, Indiana 47907, United States
| |
Collapse
|
36
|
Hurt MR, Degenstein JC, Gawecki P, Borton II DJ, Vinueza NR, Yang L, Agrawal R, Delgass WN, Ribeiro FH, Kenttämaa HI. On-Line Mass Spectrometric Methods for the Determination of the Primary Products of Fast Pyrolysis of Carbohydrates and for Their Gas-Phase Manipulation. Anal Chem 2013; 85:10927-34. [PMID: 24098979 DOI: 10.1021/ac402380h] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Matthew R. Hurt
- Department
of Chemistry, Purdue University, West Lafayette, Indiana 47907, United States
| | - John C. Degenstein
- School
of Chemical Engineering, Purdue University, West Lafayette, Indiana 47907, United States
| | - Piotr Gawecki
- School
of Chemical Engineering, Purdue University, West Lafayette, Indiana 47907, United States
| | - David J. Borton II
- Department
of Chemistry, Purdue University, West Lafayette, Indiana 47907, United States
| | - Nelson R. Vinueza
- Department
of Chemistry, Purdue University, West Lafayette, Indiana 47907, United States
| | - Linan Yang
- Department
of Chemistry, Purdue University, West Lafayette, Indiana 47907, United States
| | - Rakesh Agrawal
- School
of Chemical Engineering, Purdue University, West Lafayette, Indiana 47907, United States
| | - W. Nicholas Delgass
- School
of Chemical Engineering, Purdue University, West Lafayette, Indiana 47907, United States
| | - Fabio H. Ribeiro
- School
of Chemical Engineering, Purdue University, West Lafayette, Indiana 47907, United States
| | - Hilkka I. Kenttämaa
- Department
of Chemistry, Purdue University, West Lafayette, Indiana 47907, United States
| |
Collapse
|
37
|
Steelman DK, Pletcher PD, Switzer JM, Xiong S, Medvedev GA, Delgass WN, Caruthers JM, Abu-Omar MM. Comparison of Selected Zirconium and Hafnium Amine Bis(phenolate) Catalysts for 1-Hexene Polymerization. Organometallics 2013. [DOI: 10.1021/om4006005] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- D. Keith Steelman
- Brown Laboratory, Department
of Chemistry, Purdue University, 560 Oval
Drive, West Lafayette, Indiana 47907, United States
| | - Paul D. Pletcher
- Brown Laboratory, Department
of Chemistry, Purdue University, 560 Oval
Drive, West Lafayette, Indiana 47907, United States
| | - Jeffrey M. Switzer
- School of Chemical Engineering, Purdue University, Forney Hall of Chemical Engineering,
480 Stadium Mall Drive, West Lafayette, Indiana 47907, United States
| | - Silei Xiong
- School of Chemical Engineering, Purdue University, Forney Hall of Chemical Engineering,
480 Stadium Mall Drive, West Lafayette, Indiana 47907, United States
| | - Grigori A. Medvedev
- School of Chemical Engineering, Purdue University, Forney Hall of Chemical Engineering,
480 Stadium Mall Drive, West Lafayette, Indiana 47907, United States
| | - W. Nicholas Delgass
- School of Chemical Engineering, Purdue University, Forney Hall of Chemical Engineering,
480 Stadium Mall Drive, West Lafayette, Indiana 47907, United States
| | - James M. Caruthers
- School of Chemical Engineering, Purdue University, Forney Hall of Chemical Engineering,
480 Stadium Mall Drive, West Lafayette, Indiana 47907, United States
| | - Mahdi M. Abu-Omar
- Brown Laboratory, Department
of Chemistry, Purdue University, 560 Oval
Drive, West Lafayette, Indiana 47907, United States
- School of Chemical Engineering, Purdue University, Forney Hall of Chemical Engineering,
480 Stadium Mall Drive, West Lafayette, Indiana 47907, United States
| |
Collapse
|
38
|
Dietrich PJ, Wu T, Sumer A, Dumesic JA, Jellinek J, Delgass WN, Ribeiro FH, Miller JT. Aqueous Phase Glycerol Reforming with Pt and PtMo Bimetallic Nanoparticle Catalysts: The Role of the Mo Promoter. Top Catal 2013. [DOI: 10.1007/s11244-013-0115-1] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
|
39
|
Steelman DK, Xiong S, Pletcher PD, Smith E, Switzer JM, Medvedev GA, Delgass WN, Caruthers JM, Abu-Omar MM. Effects of Pendant Ligand Binding Affinity on Chain Transfer for 1-Hexene Polymerization Catalyzed by Single-Site Zirconium Amine Bis-Phenolate Complexes. J Am Chem Soc 2013; 135:6280-8. [PMID: 23517426 DOI: 10.1021/ja401474v] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- D. Keith Steelman
- Brown Laboratory, Department of
Chemistry, Purdue University, 560 Oval Drive, West Lafayette, Indiana 47907, United States
| | - Silei Xiong
- School of Chemical
Engineering, Purdue University, Forney Hall of Chemical Engineering, 480 Stadium Mall Drive, West
Lafayette, Indiana 47907, United States
| | - Paul D. Pletcher
- Brown Laboratory, Department of
Chemistry, Purdue University, 560 Oval Drive, West Lafayette, Indiana 47907, United States
| | - Erin Smith
- Brown Laboratory, Department of
Chemistry, Purdue University, 560 Oval Drive, West Lafayette, Indiana 47907, United States
| | - Jeffrey M. Switzer
- School of Chemical
Engineering, Purdue University, Forney Hall of Chemical Engineering, 480 Stadium Mall Drive, West
Lafayette, Indiana 47907, United States
| | - Grigori A. Medvedev
- School of Chemical
Engineering, Purdue University, Forney Hall of Chemical Engineering, 480 Stadium Mall Drive, West
Lafayette, Indiana 47907, United States
| | - W. Nicholas Delgass
- School of Chemical
Engineering, Purdue University, Forney Hall of Chemical Engineering, 480 Stadium Mall Drive, West
Lafayette, Indiana 47907, United States
| | - James M. Caruthers
- School of Chemical
Engineering, Purdue University, Forney Hall of Chemical Engineering, 480 Stadium Mall Drive, West
Lafayette, Indiana 47907, United States
| | - Mahdi M. Abu-Omar
- Brown Laboratory, Department of
Chemistry, Purdue University, 560 Oval Drive, West Lafayette, Indiana 47907, United States
- School of Chemical
Engineering, Purdue University, Forney Hall of Chemical Engineering, 480 Stadium Mall Drive, West
Lafayette, Indiana 47907, United States
| |
Collapse
|
40
|
Xie H, Lu J, Shekhar M, Elam JW, Delgass WN, Ribeiro FH, Weitz E, Poeppelmeier KR. Synthesis of Na-Stabilized Nonporous t-ZrO2 Supports and Pt/t-ZrO2 Catalysts and Application to Water-Gas-Shift Reaction. ACS Catal 2012. [DOI: 10.1021/cs300596q] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Hong Xie
- Center for Catalysis and Surface
Science, Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Junling Lu
- Energy Systems Division, Argonne National Laboratory, 9700 South Cass Avenue,
Argonne, Illinois 60439, United States
| | - Mayank Shekhar
- School of Chemical Engineering, Purdue University, 480 Stadium Mall Drive, West Lafayette,
Indiana 47907, United States
| | - Jeffery W. Elam
- Energy Systems Division, Argonne National Laboratory, 9700 South Cass Avenue,
Argonne, Illinois 60439, United States
| | - W. Nicholas Delgass
- School of Chemical Engineering, Purdue University, 480 Stadium Mall Drive, West Lafayette,
Indiana 47907, United States
| | - Fabio H. Ribeiro
- School of Chemical Engineering, Purdue University, 480 Stadium Mall Drive, West Lafayette,
Indiana 47907, United States
| | - Eric Weitz
- Center for Catalysis and Surface
Science, Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Kenneth R. Poeppelmeier
- Center for Catalysis and Surface
Science, Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| |
Collapse
|
41
|
Lee WS, Lai LC, Cem Akatay M, Stach EA, Ribeiro FH, Delgass WN. Probing the gold active sites in Au/TS-1 for gas-phase epoxidation of propylene in the presence of hydrogen and oxygen. J Catal 2012. [DOI: 10.1016/j.jcat.2012.08.021] [Citation(s) in RCA: 72] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
|
42
|
Switzer JM, Travia NE, Steelman DK, Medvedev GA, Thomson KT, Delgass WN, Abu-Omar MM, Caruthers JM. Kinetic Modeling of 1-Hexene Polymerization Catalyzed by Zr(tBu-ONNMe2O)Bn2/B(C6F5)3. Macromolecules 2012. [DOI: 10.1021/ma300129n] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Jeffrey M. Switzer
- School
of Chemical Engineering and ‡Department of Chemistry, Purdue University, West Lafayette, Indiana 47907, United
States
| | - Nicholas E. Travia
- School
of Chemical Engineering and ‡Department of Chemistry, Purdue University, West Lafayette, Indiana 47907, United
States
| | - D. Keith Steelman
- School
of Chemical Engineering and ‡Department of Chemistry, Purdue University, West Lafayette, Indiana 47907, United
States
| | - Grigori A. Medvedev
- School
of Chemical Engineering and ‡Department of Chemistry, Purdue University, West Lafayette, Indiana 47907, United
States
| | - Kendall T. Thomson
- School
of Chemical Engineering and ‡Department of Chemistry, Purdue University, West Lafayette, Indiana 47907, United
States
| | - W. Nicholas Delgass
- School
of Chemical Engineering and ‡Department of Chemistry, Purdue University, West Lafayette, Indiana 47907, United
States
| | - Mahdi M. Abu-Omar
- School
of Chemical Engineering and ‡Department of Chemistry, Purdue University, West Lafayette, Indiana 47907, United
States
| | - James M. Caruthers
- School
of Chemical Engineering and ‡Department of Chemistry, Purdue University, West Lafayette, Indiana 47907, United
States
| |
Collapse
|
43
|
Wang J, Kispersky VF, Nicholas Delgass W, Ribeiro FH. Determination of the Au active site and surface active species via operando transmission FTIR and isotopic transient experiments on 2.3wt.% Au/TiO2 for the WGS reaction. J Catal 2012. [DOI: 10.1016/j.jcat.2012.02.008] [Citation(s) in RCA: 81] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
44
|
Lee WS, Cem Akatay M, Stach EA, Ribeiro FH, Nicholas Delgass W. Reproducible preparation of Au/TS-1 with high reaction rate for gas phase epoxidation of propylene. J Catal 2012. [DOI: 10.1016/j.jcat.2011.12.019] [Citation(s) in RCA: 92] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
45
|
Shekhar M, Wang J, Lee WS, Williams WD, Kim SM, Stach EA, Miller JT, Delgass WN, Ribeiro FH. Size and support effects for the water-gas shift catalysis over gold nanoparticles supported on model Al2O3 and TiO2. J Am Chem Soc 2012; 134:4700-8. [PMID: 22316316 DOI: 10.1021/ja210083d] [Citation(s) in RCA: 251] [Impact Index Per Article: 20.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The water-gas shift (WGS) reaction rate per total mole of Au under 7% CO, 8.5% CO(2), 22% H(2)O, and 37% H(2) at 1 atm for Au/Al(2)O(3) catalysts at 180 °C and Au/TiO(2) catalysts at 120 °C varies with the number average Au particle size (d) as d(-2.2±0.2) and d(-2.7±0.1), respectively. The use of nonporous and crystalline, model Al(2)O(3) and TiO(2) supports allowed the imaging of the active catalyst and enabled a precise determination of the Au particle size distribution and particle shape using transmission electron microscopy (TEM). Further, the apparent reaction orders and the stretching frequency of CO adsorbed on Au(0) (near 2100 cm(-1)) determined by diffuse reflectance infrared spectroscopy (DRIFTS) depend on d. Because of the changes in reaction rates, kinetics, and the CO stretching frequency with number average Au particle size, it is determined that the dominant active sites are the low coordinated corner Au sites, which are 3 and 7 times more active than the perimeter Au sites for Au/Al(2)O(3) and Au/TiO(2) catalysts, respectively, and 10 times more active for Au on TiO(2) versus Al(2)O(3). From operando Fourier transform infrared spectroscopy (FTIR) experiments, it is determined that the active Au sites are metallic in nature. In addition, Au/Al(2)O(3) catalysts have a higher apparent H(2)O order (0.63) and lower apparent activation energy (9 kJ mol(-1)) than Au/TiO(2) catalysts with apparent H(2)O order of -0.42 to -0.21 and activation energy of 45-60 kJ mol(-1) at near 120 °C. From these data, we conclude that the support directly participates by activating H(2)O molecules.
Collapse
Affiliation(s)
- Mayank Shekhar
- School of Chemical Engineering, Purdue University, West Lafayette, Indiana 47907, United States
| | | | | | | | | | | | | | | | | |
Collapse
|
46
|
Manz TA, Caruthers JM, Sharma S, Phomphrai K, Thomson KT, Delgass WN, Abu-Omar MM. Structure–Activity Correlation for Relative Chain Initiation to Propagation Rates in Single-Site Olefin Polymerization Catalysis. Organometallics 2012. [DOI: 10.1021/om200884x] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Thomas A. Manz
- School of Chemical Engineering and ‡Department
of Chemistry, Purdue University, West Lafayette, Indiana
47907, United States
| | - James M. Caruthers
- School of Chemical Engineering and ‡Department
of Chemistry, Purdue University, West Lafayette, Indiana
47907, United States
| | - Shalini Sharma
- School of Chemical Engineering and ‡Department
of Chemistry, Purdue University, West Lafayette, Indiana
47907, United States
| | - Khamphee Phomphrai
- School of Chemical Engineering and ‡Department
of Chemistry, Purdue University, West Lafayette, Indiana
47907, United States
| | - Kendall T. Thomson
- School of Chemical Engineering and ‡Department
of Chemistry, Purdue University, West Lafayette, Indiana
47907, United States
| | - W. Nicholas Delgass
- School of Chemical Engineering and ‡Department
of Chemistry, Purdue University, West Lafayette, Indiana
47907, United States
| | - Mahdi M. Abu-Omar
- School of Chemical Engineering and ‡Department
of Chemistry, Purdue University, West Lafayette, Indiana
47907, United States
| |
Collapse
|
47
|
Lee WS, Zhang R, Akatay MC, Baertsch CD, Stach EA, Ribeiro FH, Delgass WN. Differences in Catalytic Sites for CO Oxidation and Propylene Epoxidation on Au Nanoparticles. ACS Catal 2011. [DOI: 10.1021/cs200373f] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Wen-Sheng Lee
- Forney Hall of Chemical Engineering, Purdue University, 480 Stadium Mall Drive, West Lafayette, Indiana 47907, United States
| | - Rong Zhang
- Forney Hall of Chemical Engineering, Purdue University, 480 Stadium Mall Drive, West Lafayette, Indiana 47907, United States
| | - M. Cem Akatay
- School of Materials Engineering and Birck Nanotechnology Center, Purdue University, West Lafayette, Indiana 47907, United States
| | - Chelsey D. Baertsch
- Forney Hall of Chemical Engineering, Purdue University, 480 Stadium Mall Drive, West Lafayette, Indiana 47907, United States
| | - Eric A. Stach
- School of Materials Engineering and Birck Nanotechnology Center, Purdue University, West Lafayette, Indiana 47907, United States
- Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, New York 11973, United States
| | - Fabio H. Ribeiro
- Forney Hall of Chemical Engineering, Purdue University, 480 Stadium Mall Drive, West Lafayette, Indiana 47907, United States
| | - W. Nicholas Delgass
- Forney Hall of Chemical Engineering, Purdue University, 480 Stadium Mall Drive, West Lafayette, Indiana 47907, United States
| |
Collapse
|
48
|
Pazmiño JH, Miller JT, Mulla SS, Nicholas Delgass W, Ribeiro FH. Kinetic studies of the stability of Pt for NO oxidation: Effect of sulfur and long-term aging. J Catal 2011. [DOI: 10.1016/j.jcat.2011.05.007] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
49
|
Maddipati SV, Delgass WN, Caruthers JM. Determination of the Catalytic Sites for Ziegler-Natta Homo-Polymerization from GPC Data. MACROMOL THEOR SIMUL 2010. [DOI: 10.1002/mats.201000040] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
|
50
|
Abstract
The kinetics of the oxidation of NO by O(2) was studied on 1 cm diameter single crystals, Pt(111) and Pt(321), at atmospheric pressure. The surface of the (321) crystal is composed of 20% kink, 20% step, and 60% terrace atoms and simulates small 1-3 nm size Pt particles on supported catalysts, while the (111) surface simulates the most stable plane found on large, >5 nm, particles. The turnover rates (TORs), that is, rate normalized by the exposed platinum, on the two single crystals differ by less than a factor of 2 over the range of conditions studied and are also similar to the TOR on a supported catalyst with an average particle size of 9 nm. Both surfaces show a dynamic kinetic behavior as evidenced by a change in the apparent activation energy and reaction orders as a function of reaction conditions. The oxygen coverage after initial rate experiments on Pt(111) was 0.6 monolayer (ML) on average which is similar to that measured previously by in situ X-ray photoelectron spectroscopy (XPS) under similar conditions. This oxygen overlayer, which is likely controlled by the relative presence of NO and NO(2), inhibits O(2) dissociation but lowers the binding energy of reactants enough to allow the catalysis. Long-term stability studies on Pt(111) correlate catalyst deactivation with irreversibly bound oxygen on the surface at coverages over 1 ML, as measured after reaction. Ex situ Auger electron spectroscopy (AES) and XPS results suggest that the surface defect sites on Pt(321) begin to oxidize relative to atoms on the (111) plane at lower NO(2) to NO ratios.
Collapse
Affiliation(s)
- Andrew D Smeltz
- School of Chemical Engineering, Purdue University, West Lafayette, Indiana 47907, USA
| | | | | |
Collapse
|