个人简介

Dr. Javier Vela, assistant professor of chemistry, received his B.S. with Honors from UNAM in 2001. He obtained M.S. and Ph.D. degrees working with Prof. Patrick L. Holland at the University of Rochester in 2003 and 2005, respectively. He was a postdoctoral research associate with Prof. Richard F. Jordan at the University of Chicago from 2005 to 2006, and a Director's Postdoctoral Fellow in the team of Jennifer A. Hollingsworth and Victor I. Klimov at Los Alamos National Laboratory’s Center for Integrated Nanotechnologies from 2007 to 2009. Dr. Vela received the ACS Inorganic Young Investigator Award in 2006, was named Top 40 Under 40 by Hispanic Engineering in 2011, received the NSF CAREER Award in 2013, the LAS Diversity Award in 2013, the LAS Early Achievement in Research Faculty Award in 2014, and the Stanley C. Israel Midwest Award for Advancing Diversity in the Chemical Sciences in 2014. Dr. Vela has been a member of the faculty at Iowa State University since August 2009.

研究领域

Photoactive nanomaterials for applications in catalysis/renewable energy/and biological imaging/polymer-nanoparticle composites

Our group is interested in the fabrication, characterization and properties of novel hetero-structured nanomaterials. Our aim is to develop unique materials and composites that are useful in solving important problems in renewable energy (energy generation, conversion, and storage), catalysis, and biological imaging and tracking. For a more detailed and up to date description of what we are up to

近期论文

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Since joining Iowa State University (2009–present) Chen, K.; Lin, C.-C.; Vela, J.; Fang, N. "Multishell Au/Ag/SiO2 Nanorods with Tunable Optical Properties as Single Particle Orientation and Rotational Tracking Probes." Submitted. Reichert, M. D.; White, A. M.; Vela, J.* "Synthesis and Instability of Cuprous Nitride Nanocrystals." Submitted. Klein, A.; Yagnik, G.; Hohenstein, J.; Ji, Z.; Zi, J.; Reichert, M.; MacIntosh, G.; Yang, B.; Peters, R.; Vela, J.; Lee, Y. J. "Mass Spectrometry Imaging as a Tool for Investigation of Chemical Interfaces in Plant-Pest Interactions." Submitted. Tavasoli, E.; Vela, J.* "Surface Ligand Microstructure, Organization and Reactivity: Investigating the Inorganic-organic-medium Interface in Colloidal Quantum Dots." Submitted. Zhu, F.; Men, L.; Guo, Y.; Zhu, Q.; Bhattacharjee, U.; Goodwin, P. M.; Petrich, J. W.*; Smith, E. A.*; Vela, J.* "Shape Evolution and Single Particle Luminescence of Organometal Halide Perovskite Nanocrystals." ACS Nano 2015, 9, in press. Lin, C.-C.; Guo, Y.; Vela, J.* "Microstructure Effects on the Water Oxidation Activity of Co3O4-Porous Silica Nanocomposites." ACS Catal. 2015, 5, 1037–1044. Dilsaver, P. S.; Reichert, M. D.; Hallmark, B. L.; Thompson, M. J.; Vela, J.* "Cu2ZnSnS4-Au Hetero-Structures: Toward Greener Chalcogenide Photocatalysts." J. Phys. Chem. C 2014, 118, 21226–21234. Guo, Y.; Rowland, C. E.; Schaller, R. D.; Vela, J.* "Near-Infrared Photoluminescence Enhancement in Ge/CdS and Ge/ZnS Core/Shell Nanocrystals: Utilizing IV/II-VI Semiconductor Epitaxy." ACS Nano 2014, 8, 8334–8343. Reichert, M. D.; Lin, C.-C.; Vela, J.* "How Robust are Semiconductor Nanorods? Investigating the Stability and Chemical Decomposition Pathways of Photoactive Nanocrystals." Chem. Mater. 2014, 26, 3900–3908. Ha, J. W.; Ruberu, T. P. A.; Han, R.; Dong, B.; Vela, J.*; Fang, N.* "Super-Resolution Mapping of Photo-generated Electron and Hole Separation in Single Metal-Semiconductor Nanocatalysts." J. Am. Chem. Soc. 2014, 136, 1398–1408. Alvarado, S. R.; Guo, Y.; Ruberu, T. P. A.; Tavasoli, E.; Vela, J.* "Inorganic Chemistry Solutions to Semiconductor Nanocrystal Problems." Coord. Chem. Rev. 2014, 263–264, 182–196. Special Issue on Quantum Dots. Nelson, N. C.; Ruberu, T. P. A.; Reichert, M. D.; Vela, J.* "Templated Synthesis and Chemical Behavior of Nickel Nanoparticles within High Aspect Ratio Silica Capsules." J. Phys. Chem. C 2013, 117, 25826–25836. Thompson, M. J.; Ruberu, T. P. A.; Blakeney, K. J.; Torres, K. V.; Dilsaver, P. S.; Vela, J.* "Axial Composition Gradients and Phase Segregation Regulate the Aspect Ratio of Cu2ZnSnS4 Nanorods." J. Phys. Chem. Lett. 2013, 4, 3918–3923. Guo, Y.; Alvarado, S. R.; Barclay, J. D.; Vela, J.* "Shape-Programmed Nanofabrication: Understanding the Reactivity of Dichalcogenide Precursors." ACS Nano 2013, 7, 3616–3626. Vela, J.* "Molecular Chemistry to the Fore: New Insights into the Fascinating World of Photoactive Colloidal Semiconductor Nanocrystals." J. Phys. Chem. Lett. 2013, 4, 653–668. Lesoine, M. D.; Bhattacharjee, U.; Guo, Y.; Vela, J.; Petrich, J. W.; Smith, E. A. "Subdiffraction, Luminescence-Depletion Imaging of Isolated, Giant, CdSe/CdS Nanocrystal Quantum Dots." J. Phys. Chem. C 2013, 117, 3662–3667. Tavasoli, E.; Guo, Y.; Kunal, P.; Grajeda, J.; Gerber, A.; Vela, J.* "Surface Doping Quantum Dots with Chemically-Active Native Ligands: Controlling Valence without Ligand Exchange." Chem. Mater. 2012, 24, 4231–4241. Ruberu, T. P. A.; Nelson, N. C.; Slowing, I. I.; Vela, J.* "Selective Alcohol Dehydrogenation and Hydrogenolysis with Semiconductor-Metal Photocatalysts: Toward Solar-to-Chemical Energy Conversion of Biomass-Relevant Substrates." J. Phys. Chem. Lett. 2012, 3, 2798–2802. Ruberu, T. P. A.; Albright, H. R.; Callis, B.; Ward, B.; Cisneros, J.; Fan, H.-J.; Vela, J.* "Molecular Control of the Nanoscale: Effect of Phosphine Chalcogenide Reactivity on CdS-CdSe Nanocrystal Composition and Morphology." ACS Nano 2012, 6, 5348–5359. Alvarado, S. R.; Guo, Y.; Ruberu, T. P. A.; Bakac, A.; Vela, J.* "Photochemical vs. Thermal Synthesis of Cobalt Oxyhydroxide Nanocrystals." J. Phys. Chem. C 2012, 116, 10382–10389. Marchuk, K.; Guo, Y.; Sun, W.; Vela, J.; Fang, N. "High-Precision Tracking with Non-blinking Quantum Dots Resolves Nanoscale Vertical Displacement." J. Am. Chem. Soc. 2012, 134, 6108–6111. Guo, Y.; Marchuk, K.; Sampat, S.; Abraham, R.; Fang, N.; Malko, A.; Vela, J.* "Unique Challenges Accompany Thick-Shell CdSe/nCdS (n>10) Nanocrystal Synthesis." J. Phys. Chem. C 2012, 116, 2791–2800.