Publications

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2022 Publications:

  1. Anish Dasgupta, Haoran He, Rushi Gong, Shun-Li Shang, Eric K Zimmerer, Randall J Meyer, Zi-Kui Liu, Michael J Janik, Robert M Rioux. Atomic control of active-site ensembles in ordered alloys to enhance hydrogenation selectivity. Nature Chemistry 14 (2022) 523-529. Highlighted by C&E News (February 27, 2022) Customizing alloy catalysts for hydrogenation
  2. P. Agarwal, D. Jensen, C.-H. Chen, R. M. Rioux, T. Matsoukas. Synthesis and Characterization of the Magnesium/Boron Solid Solutions for Energetic Applications. ACS Applied Energy Materials (2022).
  3. L. Qi, W. A. Elliott, J. Wohland, A. Kann, A. K. Kipshagen, T. Tabassum, X. Chen, N. Washton, A. Andersen, R. M. Rioux, S. L. Scott. GVL Induces a Reversal of Glucose Affinities in Microporous Zeolites. JACS Au (2022).
  4. J. W. Chang, Y. Mu. A. Armaou, R. M. Rioux. Direct determination of high affinity binding constants by continuous injection isothermal titration calorimetry. Journal of the American Chemical Society (2022).

2021 Publications:

  1. Ji Woong Chang, Antonios Armaou, Robert M Rioux. Continuous Injection Isothermal Titration Calorimetry for In Situ Evaluation of Thermodynamic Binding Properties of Ligand-Receptor Binding Models. Journal of Physical Chemistry B 125 (2021) 8075-8087.
  2. Haoran He, Randall J Meyer, Robert M Rioux, Michael J Janik. Catalyst Design for Selective Hydrogenation of Benzene to Cyclohexene through Density Functional Theory and Microkinetic Modeling. ACS Catalysis 11 (2021) 11831-11842.
  3. Tianze Xie, Robert M Rioux. Catalytic influence of light element incorporation in the lattice of palladium. Catalysis Today 371 (2021) 29-39.
  4. Suprita Jharimune, Ajay A Sathe, Robert M Rioux. Solvent-Dependent Impact of Spectator Anions on the Thermodynamics of Cation Exchange in CdSe Nanocrystals. Journal of Physical Chemistry C 125 (2021) 12792-12801.
  5. Kristen A Fichthorn, Zihao Chen, Zhifeng Chen, Robert M Rioux, Myung Jun Kim, Benjamin J Wiley. Understanding the Solution-Phase Growth of Cu and Ag Nanowires and Nanocubes from First Principles. Langmuir 37 (2021) 4419-4431.
  6. Akbar Mahdavi‐Shakib, KB Sravan Kumar, Todd N Whittaker, Tianze Xie, Lars C Grabow, Robert M Rioux, Bert D Chandler. Kinetics of H2 Adsorption at the Metal–Support Interface of Au/TiO2 Catalysts Probed by Broad Background IR Absorbance. Angewandte Chemie 133 (2021) 7814-7822.
  7. Yang Guo, Haoran He, Xu Liu, Zhifeng Chen, Robert M Rioux, Michael J Janik, Phillip E Savage. Ring-opening and hydrodenitrogenation of indole under hydrothermal conditions over Ni, Pt, Ru, and Ni-Ru bimetallic catalysts. Chemical Engineering Science 406 (2021) 126853.
  8. Prawal PK Agarwal, Devon Jensen, Chien-Hua Chen, Robert M Rioux, Themis Matsoukas. Surface-Functionalized Boron Nanoparticles with Reduced Oxide Content by Nonthermal Plasma Processing for Nanoenergetic Applications. ACS Applied Materials & Interfaces 13 (2021) 6844-6853.
  9. Suprita Jharimune, Rueben Pfukwa, Zhifeng Chen, Justin Anderson, Bert Klumperman, Robert M Rioux. Chemical Identity of Poly (N-vinylpyrrolidone) End Groups Impact Shape Evolution During the Synthesis of Ag Nanostructures. Journal of the American Chemical Society 143 (2021) 184-195.
  10. Rui Li, William A Elliott, R John Clark, James G Sutjianto, Robert M Rioux, Jeremy C Palmer, Jeffrey D Rimer. Factors controlling the molecular modification of one-dimensional zeolites. Physical Chemistry Chemical Physics. 23 (2021) 18610-18617.

2020 Publications:

  1. Linxi Wang, Shyam Deo, Kerry Dooley, Michael J Janik, Robert M Rioux. Influence of metal nuclearity and physicochemical properties of ceria on the oxidation of carbon monoxide. Chinese Journal of Catalysis. 41 (2020) 951-962.
  2. Zhenshu Wang, Aaron Garg, Linxi Wang, Haoran He, Anish Dasgupta, Daniela Zanchet, Michael J Janik, Robert M Rioux, Yuriy Román-Leshkov. Enhancement of alkyne semi-hydrogenation selectivity by electronic modification of platinum. ACS Catalysis. 10 (2020) 6763-6770.
  3. Yunwen Zhou, Yanyu Mu, Ming-Feng Hsieh, Bernd Kabius, Carlos Pacheco, Carol Bator, Robert M Rioux, Jeffrey D Rimer. Enhanced surface activity of MWW zeolite nanosheets prepared via a one-step synthesis. Journal of the American Chemical Society. 142 (2020) 8211-8222.
  4. James E Bruno, Nicolas S Dwarica, Todd N Whittaker, Emily R Hand, Clemente S Guzman IV, Anish Dasgupta, Zhifeng Chen, Robert M Rioux, Bert D Chandler. Supported Ni–Au colloid precursors for active, selective, and stable alkyne partial hydrogenation catalysts. ACS Catalysis. 10 (2020) 2565-2580.
  5. Shahzahan Mia, Shelton JP Varapragasam, Aravind Baride, Choumini Balasanthiran, Balamurugan Balasubramanian, Robert M Rioux, James D Hoefelmeyer. Diffusion doping of cobalt in rod-shape anatase TiO2nanocrystals leads to antiferromagnetism. Nanoscale Advances. 2 (2020) 4853-4862.

2019 Publications:

  1. S.J.P. Varapragasam, S. Mia, C. Wieting, C. Balasanthiran, M.Y. Hossan, A. Baride, R.M. Rioux, J.D. Hoefelmeyer. Ag-TiO2 hybrid nanocrystal photocatalyst: hydrogen evolution under UV irradiation but not under visible light irradiation. ACS Appl. Energy Mater. 2 (2019) 8274-8282.
  2. Z. Chen, J.W. Chang, C. Balasanthiran, S.T. Milner, R.M. Rioux. Anisotrpoic growth of silver nanoparticles is kinetically controlled by polyvinylpyrrolidone binding. J. Am. Chem. Soc. 141 (2019) 4328-4337.
  3. L. Wang*, M. Al-Aufi*, L. Xie*, R. M. Rioux. Polyethylene glycol (PEG) addition to polyethylenimine (PEI)-impregnated silica increases amine accessibility during CO2 sorption. ACS Sustainable Chem. Eng. 7 (2019) 14785-14795.
  4. A. Garg, D. Goncalves, Y. Liu, Z. Wang, L. Wang*, J. S. Yoo, A. Kolpak, R. M. Rioux, D. Zanchet, Y. Román-Leshkov. Impact of Transition Metal Carbide and Nitride Supports on the Electronic Structure of Thin Platinum Overlayers. ACS Catal. 9 (2019) 7090-7098.
  5. A. Dasgupta*, E. Zimmerer*, R. J. Meyer, R. M. Rioux. Generalized approach for the synthesis of silica supported Pd-Zn, Cu-Zn and Ni-Zn gamma brass phase nanoparticles. Catal. Today. 334 (2019) 231-242.
  6. Dasgupta*, R. M. Rioux, Intermetallics in Catalysis: An Exciting Subset of Multimetallic Catalysis.Catal. Today . 330 (2019) 2-15.
  7. M A. Mellmer, C. Sanpitakseree, K. Ma, B. Demir, W. A. Elliott*, P. Bai, R. L. Johnson, B. H. Shanks, R. M. Rioux, M. Neurock, J. A. Dumesic. Effects of Chloride Ions in Acid-Catalyzed Biomass Dehydration Reactions in Polar Aprotic Solvents. Nature Comm. 2019.
  8. Z. Chen*, T. Balankura, K. A. Fichthorn, R. M. Rioux. Revisiting the Polyol Synthesis of Silver Nanocubes: Role of Chlorine in Silver Nanocubes Formation. ACS Nano. 2019.
  9. J. E. Bruno, N. S. Dwarica, A. Hüther, K. B. Sravan Kumar, Z. Chen*, C. S. Guzman IV, E. R. Hand, W. C. Moore, R. M. Rioux, L. C. Grabow, B. D. Chandler. On the Limited Role of Electronic Support Effects in Selective Alkyne Hydrogenation: A Kinetic Study of Au/MOx Catalysts Prepared from Oleylamine-Capped Colloidal Nanoparticles. ChemCatChem. 2019.
  10. H. He, A. Dasgupta*, R. M. Rioux, R. J. Meyer, M. J. Janik. Competitive hydrogenation between linear alkenes and aromatics on close-packed late transition metal surfaces. J. Phys. Chem. 2019.
  11. Y. Guo, Z. Chen*, R. M. Rioux, P. E. Savage. Hydrothermal reaction of tryptophan over Ni-based bimetallic catalysts. J. Supercrit Fluids.143 (2019) 336-345.

2018 Publications:

  1. A. Dasgupta*, E. K. Zimmerer*, R. J. Meyer, R. M. Rioux. Generalized Approach for the Synthesis of Pd-Zn, Cu-Zn, and Ni-Zn Gamma Brass Phase Nanoparticles. Catal. Today.
  2. S. Jharimune*, A. A. Sathe*, R. M. Rioux, Thermochemical measurements of cation exchange in CdSe nanocrystals using isothermal titration calorimetry. Nano Letters. 18 (2018) 6795-6803.
  3. A. Dasgupta*, R. M. Rioux, Intermetallics in Catalysis: An Exciting Subset of Multimetallic Catalysis. Catal. Today.
  4. Y. Yang+, J. W. Chang*, R. M. Rioux, Structural elucidation of supported Rh complexes derived from RhCl (PPh3)3 immobilized on surface-functionalized SBA-15 and their catalytic performance for C-heteroatom (S, O) bond formation. J. Catal. 365 (2018) 43-54.
  5. M. D. Yang, L. X. Wang*, S. M. K. Shahri*, R. M. Rioux, A. Armaou. Investigation of CO2 Sorption Mechanisms in Isothermal Columns via Transient Material and Energy Balance PDE Models. Ind. Eng. Chem. Res. 57 (2018) 10303-10314.
  6. R. M. Rioux, S. H. Kim. Molecular Surface Science, Nanomaterials & Catalysis: Symposium in Honor of Gabor Somorjai at 80. Top. Catal. 61 (2018) 711-713.
  7. L. Wang*, S. M. K. Shahri*, R. M. Rioux. CO2 Capacity and Heat of Sorption on a Polyethylenimine-impregnated Silica under Equilibrium and Transient Sorption Conditions. J. Phys. Chem. C 122 (2018) 11442-11449.
  8. C. Balasanthiran+, S. Jensen, C. S. Spanjers*, S. J. P. Vararagasam, R. M. Rioux, D. Kilin, J. D. Hoefelmeyer. Quantitative Attachment of Bimetal Combinations of Transition Metal Ions to the Surface of TiO2 Nanorods. Langmuir. 34 (2018) 5422-543.
  9. G. Kumar, L. Tibbitts, J. Newell, B. Panthi, A. Mukhopadhyay*, R. M. Rioux, C. J. Pursell, M. Janik, B. D. Chandler. Evaluating differences in the active-site electronics of supported Au nanoparticle catalysts using Hammett and DFT studies. Nature Chem. 3 (2018) 268-274.

2017 Publications:

  1. S. J. P. Varapragasam, C. Balasanthiran+, A. Gurung, Q. Q. Qiao, R. M. Rioux, J. D. Hoefelmeyer. Kirkendall Growth of Hollow Mn3O4 Nanoparticles upon Galvanic Reaction of MnO with Cu2+ and Evaluation as Anode for Lithium-Ion Batteries. J. Phys. Chem. C 121 (2017) 11089-11099.
  2. Y. Noda+, H. B. Zhang+, R. Dasari, R. Singh, C. Ozmeral, Y. Roman-Leshkov, R. M. Rioux, Importance of Dimer Quantification for Accurate Catalytic Evaluation of Lactic Acid Dehydration to Acrylic Acid. Ind. Eng. Chem. Res. 56 (2017) 5843-585.
  3. L Qi, R. Alamillo, W. A. Elliott*, A. Andersen, D. W. Hoyt, E. D. Walter, K. S. Han, N. M. Washton, R. M. Rioux, J. A. Dumesic, S. L. Scott. Operando Solid-State NMR Observation of Solvent-Mediated Adsorption-Reaction of Carbohydrates in Zeolites, ACS Catal. 7 (2017) 3489-3500
  4. C. S. Spanjers*, A. Dasgupta*, M. Kirkham, B. Burger*, G. Kumar, M. J. Janik, R. M. Rioux. Determination of Bulk and Surface Atomic Arrangement in Ni-Zn Gamma Brass Phase at Different Ni to Zn Ratios. Chem. Mater. 29 (2017) 504-512
  5. A. Sathe*, A. Nambiar*, R. M. Rioux. Synthesis of cyclic organic carbonates via catalytic oxidative carboxylation of olefins in flow reactors. Catal. Sci. Technol. 7 (2017) 84-89
  6. C. S. Spanjers*, P. Guillo, M. J. Janik, T. D. Tilley, R. M. Rioux. Identification of Second Shell Coordination in Transition Metal Species Using Theoretical XANES: Example of Ti-O-(C,Si,Ge) Complexes. J. Phys. Chem. A 121 (2017) 162-16

2016 Publications:

  1. C. S. Sievers, Y. Noda+, L. Qi, E. M. Albuquerque, R. M. Rioux, S. L. Scott. Phenomena in Catalytic Reactions at Solid-Liquid Interfaces. ACS Catal. 6 (2016) 8286-8307
  2. Y. Noda+, K. Li*, A. Engler*, W. A. Elliott*, R. M. Rioux. Development of Robust Sulfur Quantification and Speciation Method for SBA-15 Supported Sulfonic Acid Catalysts. Catal. Sci. Technol. 6 (2016) 5961-5971.
  3. D. B. Pourkargar, S. M. K. Shahri*, R. M. Rioux, A. Armaou. Spatiotemporal Modeling and Parametric Estimation of Isothermal CO2 Adsorption Columns. Ind. Engr. Chem. Res. 55 (2016) 6443-6453
  4. J. Saavedra, T. Whittaker, Z. Chen*, C. J. Pursell, R. M. Rioux, B. D. Chandler. Controlling activity and selectivity using water in the Au-catalyzed preferential oxidation in CO in H2. Nature Chem. 8 (2016) 585-590
  5. A. Gellman, R. M. Rioux, P. Stair. Editorial: Special issue dedicated to Gabor Somorjai’s 80th birthday. Surf. Sci. 648 (2016) 1
  6. S. G. Turney, M. Ahmed, I. Chandrsekar, R. B. Wysolmerski, Z. M. Goeckeler, R. M. Rioux, G. M. Whitesides, P. C. Bridgman. Nerve growth factor stimulates axon outgrowth through negative regulation of growth cone actomyosin restraint of microtubule advance. Molecular Biology of the Cell 27 (2016) 500-51

2015 Publications:

  1. M. E. Strayer, T. P. Senftle, J. P. Winterstein, N. M. Vargas-Barbosa, R. Sharma, R. M. Rioux, M. J. Janik, T. E. Mallouk. Charge Transfer Stabilization of Late Transition Metal Oxide Nanoparticles on a Layered Support. J. Am. Chem. Soc. 137 (2015) 16216-16224.
  2. C. S. Spanjers*, R. S. Sim*, N. P. Sturgis*, B. Kabius, R. M. Rioux. In Situ Characterization of Ni1-xZnx/ZnO Catalysts and their Selectivity for Acetylene Semihydrogenation in Excess Ethylene. ACS Catal. 5 (2015) 3304-3315
  3. B. Panthi, A. Mukhopadhyay*, L. Tibbitts, C. Pursell, R. M. Rioux, B. D. Chandler. Using Thiol Adsorption on Supported Au Nanoparticle Catalysts to Evaluate Au Dispersion and the Number of Active Sites for Benzyl Alcohol Oxidation. ACS Catal. 5 (2015) 2232-2241
  4. R. M. Rioux, F. D. Toste. Catalysis Science & Technology: Catalysis in the USA. Catal. Sci. Technol. 5 (2015) 1357-1359

2014 Publications:

  1. M. H. Do, T. Wang, Dang-guo Cheng, R. M. Rioux, J. Gong. Simple Strategies for Fabrication of a Periodic Mesoporous Aluminosilicate with Crystalline Walls. Small 10 (2014) 4249-4256
  2. A. Sathe*, M. A. Peck, C. Balsanthiran+, M. A. Langell, R. M. Rioux, J. D. Hoefelmeyer. X-ray photoelectron spectroscopy of transition metal ions attached to the surface of rod-shaped anatase TiO2 nanocrystals. Inorg. Chimica Acta 422 (2014) 8-13
  3. D. Childers, S. M. Kamali Shahri*, N. Schweitzer, R. M. Rioux, J. T. Miller, R. J. Meyer. Modifying structure-sensitive reactions by addition of Zn to Pd. J. Catal. 318 (2014) 75-84
  4. Y. Yang+, R. M. Rioux. Highly stereoselective anti-Markovnikov hydrothiolation of alkynes and electron-deficient alkenes by a supported Cu-NHC complex. Green Chem. 16 (2014) 3916-3925
  5. C. S. Spanjers*, T. P. Senftle, A. C. T. van Duin, M. J. Janik, A. I. Frenkel, R. M. Rioux. Illuminating surface atoms in nanoclusters by differential X-ray absorption spectroscopy. Phys. Chem. Chem. Phys. 16 (2014) 26528-26538.
  6. D. J. Childers, N. M. Schweitzer, S. M. K. Shahri*, R. M. Rioux, J. T. Miller, R. J. Meyer. Evidence for geometric effects in neopentane conversion on PdAu catalysts. Catal. Sci. Technol. 4 (2014) 4366-4377
  7. S. M. McCarthy, Y.-C. Lin, D. Devarajan, J. W. Chang, H. Yennawar, R. M. Rioux, D. H. Ess, A. T. Radosevich. Intermolecular N-H Oxidative Addition of Ammonia, Alkylamines and Arylamines to a Planar sigma3-Phosphorus Compound via an Entropy-Controlled Electrophlic Mechanism. J. Am. Chem. Soc. 136 (2014) 4640-4650.
  8. M. Strayer, J. M. Binz, M. Tanase, S. M. Kamali Shahri, R. Sharma, R. M. Rioux, T. E. Mallouk. Interfacial bonding stabilizes rhodium and rhodium oxide nanoparticles on layered Nb- and Ta oxide supports. J. Am. Chem. Soc. 136 (2014) 5687-5696.
  9. C. S. Spanjers, J. T. Held, M. J. Jones, D. D. Stanley, R. S. Sim, M. J. Janik, R. M. Rioux. Zinc Inclusion to Heterogeneous Nickel Catalysts Reduces Oligomerization during the Semihydrogenation of Acetylene. J. Catal. 316 (2014) 164–173.
  10. E. G. Moschetta, K. M. Gans, R. M. Rioux, Elucidating the roles of enthalpy, entropy, and donor atom in the chelate effect for binding different bidentate ligands on the same metal center. J. Catal. 309 (2014) 11-20.
  11. M. A. Smith, A. Zoelle, Y. Yang, R. M. Rioux, N. G. Hamilton, K. Amakawa, P. K. Nielsen, A. Trunschke, Surface roughness effects in the catalytic behavior of vanadia supported on SBA-15. J. Catal. 312 (2014) 170-178.

2013 Publications:

  1. D. Childers, A. Saha, N. Schweitzer, R. M. Rioux, J. T. Miller, R. J. Meyer. Correlating Heat of Adsorption of CO to Reaction Selectivity: Geometric Effects vs Electronic Effects in Neopentane Isomerization over Pt and Pd Catalyst. ACS Catalysis 3 (2013) 2487-2496.
  2. P. J. Cordeiro, P. Guillo, C. S. Spanjers, J. W. Chang, M. I. Lipschutz, M. E. Fasulo, R. M. Rioux, T. D. Tilley. Titanium-Germoxy Precursor Route to Germanium-Modified Epoxidation Catalysts with Enhanced Activity. ACS Catalysis 3 (2013) 2269-2279.
  3. Y. Yang, E. G. Moschetta, R. M. Rioux. Addition of Sulfonic Acids to Terminal Alkynes Catalyzed by a Rhodium Complex: Ligand Concentration-Controlled Reaction Selectivity. ChemCatChem 5 (2013) 3005-3013.
  4. V. Ravi, J. M. Binz, R. M. Rioux. Thermodynamic Profiles at the Solvated Inorganic-Organic Interface: The Case of Gold-Thiolate Monolayers. Nano Letters 13 (2013) 4442-4448.
  5. S. Jana, J. W. Chang, R. M. Rioux. Synthesis and Modeling of Hollow Intermetallic Ni-Zn Nanoparticles Formed by the Kirkendall Effect. Nano Letters 13 (2013) 3618-3625.
  6. E. G. Moschetta, K. M. Gans, R. M. Rioux. Characterization of sites of different thermodynamic affinities on the same metal center via isothermal titration calorimetry. Journal of Catalysis 302 (2013) 1-9.
  7. Y. Yang, W. Dong, Y. Guo, R. M. Rioux. Cu(I)-catalyzed aerobic cross-dehydrogenative coupling of terminal alkynes with thiols for the construction of alkynyl sulfides. Green Chemistry 15 (2013) 3170-3175.
  8. W. Kang, C. S. Spanjers, R. M. Rioux, J. D. Hoefelmeyer. Synthesis of brookite TiO2 nanorods with isolated Co(II) surface sites and photocatalytic degradation of 5,8-dihydroxy-1,4-naphthoquinone dye. Journal of Materials Chemistry A 1 (2013) 7717-7728.

2012 Publication:

  1. S. J. Kweskin, R. M. Rioux, H. Song, K. Komvopoulos, P. Yang, G. A. Somorjai. High-Pressure Adsorption of Ethylene on Cubic Pt Nanoparticles and Pt(100) Single Crystals Probed by in Situ Sum Frequency Generation Vibrational Spectroscopy. ACS Catalysis 2 (2012) 2377-2386.
  2. S. Jana, R. M. Rioux. Seeded growth induced amorphous to crystalline transformation of niobium oxide nanostructures. Nanoscale 4 (2012) 1782-1788.

2011 Publications:

  1. Y. S. Choi, E. G. Moschetta, J. T. Miller, M. Fasulo, M. J. McCurdo, R. M. Rioux, T. D. Tilley. Highly Dispersed Pd-SBA15 Materials from Tris(tert-butoxy)siloxy Complexes of Pd(II) ACS Catalysis. 1 (2011) 1166-1177.
  2. Y. Yang, R. M. Rioux. Highly regio- and stereoselective hydrothiolation of acetylenes with thiols catalyzed by a well-defined supported Rh complex. Chemical Communications. 47 (2011) 6557-6559.

2010 Publications:

  1. D. J. Lipomi, R. V. Martinez, R. M. Rioux, L. Cademartiri, W. F. Reus, G. M. Whitesides, Survey of Materials for Nanoskiving and Influence of the Cutting Process on the Nanostructures Produced, ACS Appl. Mater. Interf. 2 (2010) 2503.
  2. S. Elhadj, R. M. Rioux, M. D. Dickey, J. J. DeYoreo, G. M. Whitesides, Subnanometer Replica Molding of Molecular Steps on Ionic Crystals, Nano Lett. 10 (2010) 4140.
  3. S. H. Kim, F. H. Ribeiro, R. M. Rioux, Preface to the Molecular Surface Chemistry and its Applications Special Issue, Langmuir. 26 (2010) 16187.
  4. N. Chen, R. M. Rioux, L. A. M. M. Barbosa, F. H. Ribeiro, Kinetic and Theoretical Study of the Hydrodechlorination of CH4-xClx (x = 4) Compounds on Palladium, Langmuir. 26 (2010) 16615.

2009 Publications:

  1. J. Gingras, R. M. Rioux, D. Culvelier, N. A. Geisse, J. W. Lichtman, G. M. Whitesides, L. Mahadevan, J. R. Sanes, Controlling the orientation and synaptic differentiation of myotubes with micropatterned substrates. Biophys. J. 97 (2009) 2771.
  2. M. E. Grass, R. M. Rioux, G. A. Somorjai, Dependence of Gas-Phase Crotonaldehyde Hydrogenation Selectivity and Activity on the Size of Pt Nanoparticles (1.7-7.1 nm) Supported on SBA-15, Catal. Lett. 128 (2009) 1.