The Lobo Group Pubished Papers

1.      Freyhardt, C. C.; Lobo, R. F.; Khodabandeh, S.; Lewis, J. E.; Tsapatsis, M.; Yoshikawa, M.; Camblor, M. A.; Pan, M.; Helmkamp, M. M.; Zones, S. I.; Davis, M. E. "VPI-8: A high-silica molecular sieve with a novel ''pinwheel'' building unit and its implications for the synthesis of extra-large pore molecular sieves." J. Am. Chem. Soc. 1996, 118, 7299.

2.      Freyhardt, C. C.; Tsapatsis, M.; Lobo, R. F.; Balkus, K. J.; Davis, M. E. "A high-silica zeolite with a 14-tetrahedral-atom pore opening." Nature 1996, 381, 295.

3.      Lobo, R. F.; Zones, S. I.; Medrud, R. C. "Synthesis and Rietveld refinement of the small-pore zeolite SSZ-16." Chem. Mater. 1996, 8, 2409.

4.      Lobo, R. F.; Tsapatsis, M.; Freyhardt, C. C.; Chan, I.; Chen, C. Y.; Zones, S. I.; Davis, M. E. "A model for the structure of the large-pore zeolite SSZ-31." J. Am. Chem. Soc. 1997, 119, 3732.

5.      Lobo, R. F.; Tsapatsis, M.; Freyhardt, C. C.; Khodabandeh, S.; Wagner, P.; Chen, C. Y.; Balkus, K. J.; Zones, S. I.; Davis, M. E. "Characterization of the extra-large-pore zeolite UTD-1." J. Am. Chem. Soc. 1997, 119, 8474.

6.      Velev, O. D.; Jede, T. A.; Lobo, R. F.; Lenhoff, A. M. "Porous silica via colloidal crystallization." Nature 1997, 389, 447.

7.      Feuerstein, M.; Lobo, R. F. "Influence of oxygen and nitrogen on Li-7 MAS NMR spectra of zeolite LiX-1.0." Chem. Commun. 1998, 1647.

8.      Feuerstein, M.; Lobo, R. F. "Characterization of Li cations in zeolite LiX by solid-state NMR spectroscopy and neutron diffraction." Chem. Mater. 1998, 10, 2197.

9.      Shantz, D. F.; Lobo, R. F. "Spatial ordering of organic and inorganic charge centers in as- made high-silica zeolites determined by multidimensional {1H}-> H-2 CPMAS NMR correlation spectroscopy." Chem. Mater. 1998, 10, 4015.

10.  Shantz, D. F.; Lobo, R. F. "Spatial correlation of charge centers in the tectosilicate nonasil determined by multidimensional {H-1}-> H-2 CPMAS NMR correlation spectroscopy." J. Am. Chem. Soc. 1998, 120, 2482.

11.  Shantz, D. F.; Lobo, R. F. "Solid-state deuterium NMR studies of organic molecules in the tectosilicate nonasil." J. Phys. Chem. B 1998, 102, 2339.

12.  Velev, O. D.; Jede, T. A.; Lobo, R. F.; Lenhoff, A. M. "Microstructured porous silica obtained via colloidal crystal templates." Chem. Mater. 1998, 10, 3597.

13.  Burton, A.; Feuerstein, M.; Lobo, R. F.; Chan, J. C. C. "Characterization of cancrinite synthesized in 1,3-butanediol by Rietveld analysis of powder neutron diffraction data and solid- state Na-23 NMR spectroscopy." Micropor. Mesopor. Mater. 1999, 30, 293.

14.  Burton, A.; Lobo, R. F. "The role of barium cations in the synthesis of low-silica LTL zeolites." Micropor. Mesopor. Mater. 1999, 33, 97.

15.  Feuerstein, M.; Lobo, R. F. "Mobility of Li cations in X zeolites studied by solid-state NMR spectroscopy." Solid State Ion. 1999, 118, 135.

16.  Juttu, G. G.; Lobo, R. F. "Framework modification of microporous silicates via gas-phase treatment with ZrCl4." Cat. Lett. 1999, 62, 99.

17.  Shantz, D. F.; Burton, A.; Lobo, R. F. "Synthesis, structure solution, and characterization of the aluminosilicate MCM-61: the first aluminosilicate clathrate with 18-membered rings." Micropor. Mesopor. Mater. 1999, 31, 61.

18.  Shantz, D. F.; Fild, C.; Koller, H.; Lobo, R. F. "Guest-host interactions in As-made Al-ZSM-12: Implications for the synthesis of zeolite catalysts." J. Phys. Chem. B 1999, 103, 10858.

19.  Shantz, D. F.; Lobo, R. F. "H-2-{H-1} CPMAS NMR of guest-host species in zeolites: An experimental study." J. Phys. Chem. B 1999, 103, 5920.

20.  Shantz, D. F.; Lobo, R. F. "Guest-host interactions in zeolites as studied by NMR spectroscopy: implications in synthesis, catalysis and separations." Top. Catal. 1999, 9, 1.

21.  Accardi, R. J.; Lobo, R. F. "Accessibility of lithium cations in high-silica zeolites investigated using the NMR paramagnetic shift effect of adsorbed oxygen." Micropor. Mesopor. Mater. 2000, 40, 25.

22.  Braunbarth, C.; Hillhouse, H. W.; Tsapatsis, M.; Burton, A.; Lobo, R. F.; Jacubinas, R. M.; Kuznicki, S. M. "Structure of strontium ion-exchanged ETS-4 microporous molecular sieves." Chem. Mater. 2000, 12, 1857.

23.  Bulanin, K. M.; Lobo, R. F.; Bulanin, M. O. "Low-temperature adsorption of N-2, O-2, and D-2 on LiX, NaX, and NaLiX zeolites studied by FT-IR spectroscopy." J. Phys. Chem. B 2000, 104, 1269.

24.  Burton, A.; Accardi, R. J.; Lobo, R. F.; Falcioni, M.; Deem, M. W. "MCM-47: A highly crystalline silicate composed of hydrogen- bonded ferrierite layers." Chem. Mater. 2000, 12, 2936.

25.  Fild, C.; Shantz, D. F.; Lobo, R. F.; Koller, H. "Cation-induced transformation of boron-coordination in zeolites." Phys. Chem. Chem. Phys. 2000, 2, 3091.

26.  Juttu, G. G.; Lobo, R. F. "Characterization and catalytic properties of MCM-56 and MCM-22 zeolites." Micropor. Mesopor. Mater. 2000, 40, 9.

27.  Shantz, D. F.; auf der Gunne, J. S.; Koller, H.; Lobo, R. F. "Multiple-quantum H-1 MAS NMR studies of defect sites in as-made all-silica ZSM-12 zeolite." J. Am. Chem. Soc. 2000, 122, 6659.

28.  Feuerstein, M.; Accardi, R.J.; Lobo, R. F. “Adsorption of Nitrogen and Oxygen in the Zeolites LiA and LiX Investigated by 6Li and 7Li MAS NMR Spectroscopy”, J. Phys. Chem. B 2000, 104, 10282.

29.  Accardi, R. J.; Lobo, R. F.; Kalwei, M. "Paramagnetic effect of oxygen in the Na-23 MAS NMR and Na-23 MQMAS NMR spectroscopy of zeolite LiNaX." J. Phys. Chem. B 2001, 105, 5883.

30.  Boshoff, J. H. D.; Lobo, R. F.; Wagner, N. J. "Influence of polymer motion, topology and simulation size on penetrant diffusion in amorphous, glassy polymers: Diffusion of helium in polypropylene." Macromolecules 2001, 34, 6107.

31.  Shantz, D. F.; Lobo, R. F. "Two new silicate hydrates (C20H30N2)(8) •[Si8O20](2) •110H(2)O and (C20H30N2)(4) • [Si8O20] • 42H(2)O, and their implications for the role of non- covalent interactions in high-silica zeolite synthesis." Micropor. Mesopor. Mater. 2001, 43, 127.

32.  Lobo, R. F.; Koninngsveld, H. v. "A New Description of the Disorder in Zeolite ZSM-48." J. Am. Chem. Soc. 2002, 124, 13222.

33.  Sawant, K. R.; Lobo, R. F. “Imprinting the Surface of Mesoporous Materials Using Organic Structure-Directing Agents”; International Symposium on Nanoporous Materials, 2002, Ottawa, p 53.

34.  Wang, Z.; Lambros, J.; Lobo, R. F. "Micromechanical compressive response of a zeolite single crystal." J. Mater. Sci. 2002, 37, 2491.

35.  Navarro, U.; Trujillo, C.A.; Oviedo, A.; Lobo, R. F.; “Impact of the deactivation conditions on the acidity of Y zeolites used for the formulation of FCCcatalysts, studies by FTIR of adsorbed CO”, J. Catal., 2002, 211, 64.

36.  Kragten, D. D.; Fedeyko, J. M.; Sawant, K. R.; Rimer, J. D.; Vlachos, D. G.; Lobo, R. F.; Tsapatsis, M. "Structure of the silica phase extracted from silica/(TPA)OH solutions containing nanoparticles." J. Phys. Chem. B. 2003, 107, 10006.

37.  Rudakova, A. V.; Lobo, R. F.; Bulanin, K. M. "FT-IR study of carbon monoxide adsorption on Li-exchanged zeolite X." J. Phys. Chem. B. 2003, 107, 5212.

38.  van Koningsveld, H.; Lobo, R. F. "Disorder in zeolite SSZ-31 described on the basis of one-dimensional building units." J. Phys. Chem. B 2003, 107, 10983.

39.  Varkey, S. P.; Lobo, R. F.; Theopold, K. H. "Zeolite MCM-22 supported heterogeneous chromium catalyst for ethylene polymerization." Cat. Letters 2003, 88, 227.

40.  Wang, Z. M.; Lobo, R. F.; Lambros, J. "The mechanical properties of siliceous ZSM-5 (MFI) crystals." Micropor. Mesopor. Mater. 2003, 57, 1.

41.  Fedeyko, J.; Sawant, K.; Kragten, D.; Vlachos, D.; Lobo, R. F. The structure of subcolloidal zeolite precursor nanoparticles. In Recent Advances In The Science And Technology Of Zeolites And Related Materials, Pts A - C, 2004; Vol. 154; pp 1267.

42.  Fedeyko, J. M.; Rimer, J. D.; Vlachos, D. G.; Lobo, R. F. "Spontaneous Formation of Silica Nanoparticles in Basic Solutions of Small Tetraalkylammonium Cations." J. Phys. Chem. B. 2004, 108, 12271.

43.  Heijboer, W. M.; Glatzel, P.; Sawant, K. R.; Lobo, R. F.; Bergmann, U.; Barrea, R. A.; Konings berger, D. C.; Weckhuysen, B. M.; de Groot, F. M. F. "K-beta Detected XANES of Framework-Substituted Fe-ZSM-5 Zeolites." J. Phys. Chem. B 2004, 108, 10002.

44.  Martinez-Inesta, M. M.; Peral, I.; Proffen, T.; Lobo, R. F. A pair distribution function analysis for zeolite beta. In Recent Advances In The Science And Technology Of Zeolites And Related Materials, Pts A - C, 2004; Vol. 154; pp 1393.

45.  Rimer, J.D.; Kragten, D.D.; Tsapatsis, M.; Lobo, R. F.; Vlachos, D.G.; Growth Mechanisms of silicalite-1. In Recent Advances In The Science And Technology Of Zeolites And Related Materials, Pts A - C, 2004; Vol. 154; pp 317.

46.  Martinez-Iñesta, M. M.; Peral, I.; Proffen, T.; Lobo, R. F. "A Pair Distribution Function Analysis of Zeolite Beta." Micropor. Mesopor. Mater. 2004, 77, 55.

47.  Peral, I.; Jones, C. Y.; Varkey, S. P.; Lobo, R. F. "Structural comparison of two EUO-type zeolites investigated bv neutron diffraction." Micropor. Mesopor. Mater. 2004, 71, 125.

48.  Smith, M. A.; Foley, H. C.; Lobo, R. F. "A simple model describes the PDF of a non-graphitizing carbon." Carbon 2004, 42, 2041.

49.  van Koningsveld, H.; Lobo, R. F.; Martinez-Inesta, M. M. A reinvestigation of the disorder in zeolite UTD-1. In Recent Advances In The Science And Technology Of Zeolites And Related Materials, Pts A - C, 2004; Vol. 154; pp 1180.

50.  Fedeyko, J. M.; Vlachos, D. G.; Lobo, R. F. "Formation and structure of self-assembled silica nanoparticles in basic solutions of organic and inorganic cations." Langmuir 2005, 21, 5197.

51.  Kumar, A.; Lobo, R. F.; Wagner, N. J. "Porous Amorphous Carbon Models from Periodic Gaussian Chains of Amorphous Polymers." Carbon 2005, 43 3099-3111.

52.  Martinez-Inesta, M. M.; Lobo, R. F. "Investigation of the negative thermal expansion mechanism of zeolite chabazite using the pair distribution function method." J. Phys. Chem. B 2005, 109, 9389.

53.  Rimer, J. D.; Fedeyko, J. M.; Vlachos, D. G.; Lobo, R. F. "Silica Self-Assembly and the Synthesis of Microporous and Mesoporous Silicates." Chem. Eur. J. 2006, 12 2926-2934.

54.  Rimer, J. D.; Vlachos, D.; Lobo, R. F. "Evolution of Self-Assembled Silica-Tetrapropylammonium Nanoparticles at High Temperatures." J. Phys. Chem. B. 2005, 109, 12762.

55.  Rimer, J. D.; Vlachos, D. G.; Lobo, R. F. "Physical Basis for the Formation and Stability of Silica Nanoparticles in Basic Solutions of Monovalent Cations." Langmuir 2005, 21 8960-8971.

56.  Smith, M. A.; Lobo, R. F. "The Local and Surface Structure of Ordered Mesoporous Carbons from Nitrogen Sorption, NEXAFS and Synchrotron Radiation Studies." Micropor. Mesopor. Mater. 2006, 92, 81-93.

57.  Fedeyko, J.M.; Vlachos, D.G.; Lobo, R.F.; “On the Connection between Zeolite Precursor Nanoparticles and M41S-type Ordered Mesoporous Silicas”, Micropor. Mesopor. Mater.2006, 90 102-111.

58.  Zimmerman, A.M.; Doren D. J.; Lobo, R.F.; “Electronic and geometric properties of ETS-10: QM/MM studies of cluster models”, J. Phys. Chem. B., 2006 110 8959-8964.

59.  Lobo, R.F.; Palmqvist A.E.C.; “Mechanistic insights into templated materials synthesis”, Curr. Op. Coll. Interf. Sc. 2005  10 185-187. (Editorial)

60.  Nash, M.; Lobo, R.F.; Rikov, S.; Doren, D.J.; “Photocatalytic Activity of Vanadium-substituted ETS-10”, J. Phys. Chem. C. 2007 111, 7029.

61.  Fedeyko, J.M.; Fox H.; Vlachos, D.G., Lobo, R.F.; “Initial Stages of Self-Organization of  Silica-Alumina Gels in Zeolite Synthesis” Langmuir 2007 23, 4532.

62.  Rimer, J.D.; Roth, D.; Vlachos, D.G.; Lobo, R.F.; “Self-assembly and Phase Behavior of Germanium Oxide Nanoparticle in Basic Aqueous Solutions” Langmuir 2007 23, 2784.

63.  Huang, W.; McCormick, J. R.; Lobo, R. F.; Chen, J; “Selective hydrogenation of acetylene in the presence of ethylene on zeolite-supported bimetallic catalysts”, J. Catal, 2007, 246, 40-51.

64.  Martinez-Inesta, M.A.M., Lobo, R. F., “Investigation of the structure of platinum clusters supported in zeolite beta using the pair distribution function”, J. Phys. Chem. C. 2007, 111, 8573.

65.  Shough, A.M.; Doren, D.J.; Nash, M.; Lobo, R.F.;”Effects of vanadium substitution on the structure and photocatalytic behavior of ETS-10”, J. Phys. Chem. C.; 2007, 111, 1776-1782.

66.  Rimer, J. D.; Trofymluk, O.; Navrotsky, A.; Lobo, R.F.; Vlachos, D.G.; “Kinetic and Thermodynamic Studies of Silica Nanoparticle Dissolution”, Chem. Mater. 2007 19 4189.

67.  Rimer, J. D.; Vlachos, D.G.; Lobo, R.F.; “Kinetics of Silicalite-1 Crystallization”, Proceedings of the 15th International Zeolite Conference, Beijing, Aug. 2007.

68.  Shough, A.M., Lobo, R. F., Doren, D. J., “A visible light photocatalyst: effects of vanadium substitution on ETS-10”, Phys. Chem. Chem. Phys., 2007, 9, 5096-5104.

69.  Nash, M. J., Shough, A. M., Fickel, D. W., Doren, D.J., Lobo, R. F.,”High Temperature Dehydrogenation of Bronsted Acid Sites in Zeolites”, J. Am. CHem. Soc., 2008 130, 2460-2462.

70.  Huang, W., Pyrz, W., Lobo, R.F. and Chen J.G., “Selective hydrogenation of acetylene in the presence of ethylene on K-zeolite beta supported Pd and Pd/Ag catalysts”, Appl. Catal., 2007, 333, 254-263.

71.  Lobo, R.F., “Chemical Diversity of Zeolite Catalytic Sites”, AIChE J., 2008, 54, 1402-1409.

72.  Huang, W., Lobo, R.F., Chen, J.G., “Characterization of Na+-beta-zeolite supported Pd and PdAg bimetallic catalysts using EXAFS, TEM and flow reactor studies”, J. Mol. Catal. A – Chem., 2008, 283, 158-165.

73.  Hould, N., Lobo, R.F., “Nanoparticle Precursors and Phase Selectivity in Hydrothermal Synthesis of Zeolite beta”, Chem. Mater. 2008, 18, 5807.

74.  Rimer, J.D., Trofymluk, O. Lobo, R.F. Navortsky, A., Vlachos, D. G., “Thermodynamics of Self-Assembly in Basic Solutions of Monovalent Cations”, J. Phys. Chem. C. 2008, 112, 14754-14761.

75.  Nash, M.J., Lobo, R. F., Doren, D. J., “Photocatylitic Oxidation of ethylene by ammonium exchanged ETS-10 and AM-6”, Appl. Catal. B: Env. 2008, in press.