Associate Professor Education Education: Ph.D. in Chemistry, California Institute of Technology (2003) B.A. in Chemistry, Columbia University (1997) Research Research Areas: Inorganic Chemistry Materials Chemistry and Nanoscience Research Interests: Research in the Salguero group focuses on hybrid materials that incorporate nanosheet components. Nanosheets are characterized as well-defined nanomaterials that are one to several monolayers thick and tens of micrometers in lateral dimensions. Examples of nanosheets include graphene, graphite oxide, metal chalcogenides (MoS2, NbSe2) particularly some transition metal oxides (NbWO6, H2SrTa2O7, Ca2Nb3O10), hexagonal boron nitride, and lamellar perovskites. Why nanosheets? Most importantly, nanosheets are isolable and can be manipulated (and characterized) using solution-based methods, which allows them to be assembled in a controlled fashion. In addition, nanosheets are highly ordered and can be thought of as two-dimensional crystals. They exhibit excellent strength and stiffness properties, as well as high thermal stability. Their high surface area maximizes the interactions between adjoining nanosheets and lead to interesting electronic and reactivity effects in mixed material systems. Nanosheets are used as building blocks for various advanced functional materials. The general preparative approaches utilize both top-down and bottom-up strategies that come largely from a solution chemist’s perspective with a strong emphasis on synthetic methods. Once the hybrid materials are created, they are characterized by state-of-the-art microscopy and spectroscopy techniques. The applications of these new hybrid materials venture into diverse areas. Some targeted applications include: -- barrier materials, such as gas and moisture barriers for electronics, OLED displays, and organic photovoltaics that are conformal, flexible, and mechanically robust -- energy storage materials for batteries and capacitors; for example, new materials that can increase Li storage capacity yet maintain structural integrity -- electrically conductive materials for fuel cells or as a current-dissipating material on aircraft (to provide protection against lightening strikes) -- homogeneous and heterogeneous catalysis where nanosheets play the role of soluble support (or giant ligand, depending on your perspective). Recent Publications “All-Metallic Electrically-Gated 2H-TaSe2 Thin-Film Switches and Logic Circuits” J. Renteria, R. Samnakay, C. Jiang, T.R. Pope, P. Goli, Z. Yan, D. Wickramaratne, T.T. Salguero, A.G. Khitun, R.K. Lake and A.A. Balandin Journal of Applied Physics, 2014, 115, 034305. “Exfoliation of Egyptian Blue and Han Blue, Two Alkali Earth Copper Silicate-Based Pigments” Darrah Johnson-McDaniel and Tina T. Salguero Journal of Visualized Experiments, 2014, 86, e51686, DOI: 10.3791/51686. “Chromism of Bi2WO6 in Single Crystal and Nanosheet Forms” Timothy R. Pope, Melissa N. Lassig, Gregory Neher, Richard D. Weimar III, and Tina T. Salguero Journal of Materials Chemistry C, invited contribution to the 2014 Emerging Investigators Issue, 2014, 2, 3223-3230. “Phonon and thermal properties of exfoliated TaSe2 thin films” Z. Yan, C. Jiang, T.R. Pope, C.F. Tsang, J.L. Stickney, P. Goli, J. Renteria, T.T. Salguero, and A.A. Balandin Journal of Applied Physics, 2013, 114, 204301. “Nanoscience of an Ancient Pigment” Darrah Johnson-McDaniel, Christopher A. Barrett, Asma Sharafi, and Tina T. Salguero Journal of the American Chemical Society, 2013, 135, 1677-1679. “Nanostructured Scrolls from Graphene Oxide for Microjet Engines” Kun Yao, Manoj Manjare, Christopher A. Barrett, Bo Yang, Tina T. Salguero, and Yiping Zhao Journal of Physical Chemistry Letters, 2012, 3, 2204-2208 Selected Publications Selected Publications: 2018 Brook, G., Franco, N., Cherkinsky, A., Acevedo, A., Fiore, D., Pope, T., . . . Salguero, T. T. (2018). Pigments, Binders, and Ages of Rock Art at Viuda Quenzana, Santa Cruz, Patagonia (Argentina). Journal of Archaeological Science: Reports. Bloodgood, M., Wei, P., Aytan, E., Bozhilov, K., Balandin, A., & Salguero, T. T. (2018). Monoclinic Structures of Niobium Trisulfide. APL Materials, 6, 026602. Yao, K., Manjare, M., Barrett, C., Salguero, T., & Zhao, Y. (2015, December 1). 9202606, Functional Nanostructured "Jelly Rolls" with Nanosheet Components. USA. Salguero, T. T., & Hicks-Garner, J. (2015). 9,029,025, Methods and apparatus for increasing biofilm formation and power output in microbial fuel cells. Salguero, T. T. (2015). 9,102,694, Method for bottom-up graphene sheet preparation and bandgap engineering. Salguero, T. T., Johnson-McDaniel, D., & Barrett, C. A. (2015). 9028957, Metal Silicate Nanosheets, Methods of Making Metal Silicate Nanosheets, and Methods of Use. Hicks-Garner, J., Gross, A., & Salguero, T. T. (2010, January 4). 9,625,410, Substance Detection Device and Method. Salguero, T. T., Barrett, C. A., & Sexton, D. (2012). 20150140331, NANOPARTICLES AND METHOD OF MAKING NANOPARTICLES. 2017 Liu, G. ; Rumyantsev, S. ; Bloodgood, M. A. ; Salguero, T. T. ; Shur, M. ; Balandin, A. A. Low-Frequency Electronic Noise in Quasi-1D TaSe 3 van der Waals Nanowires. Nano Letters 2017, 17, 377 - 383. Neher, G. ; Salguero, T. T. δ-Polymorph of Manganese Phosphate. Crystal Growth & Design 2017. 2016 Ramachandran, R. ; Johnson-McDaniel, D. ; Salguero, T. T. Formation and Scrolling Behavior of Metal Fluoride and Oxyfluoride Nanosheets. Chemistry of Materials 2016, 28, 7257 - 7267. Stolyarov, M. A. ; Liu, G. ; Bloodgood, M. A. ; Aytan, E. ; Jiang, C. ; Samnakay, R. ; Salguero, T. T. ; Nika, D. L. ; Rumyantsev, S. L. ; Shur, M. S. ; Bozhilov, K. N. ; Balandin, A. A. Breakdown current density in h-BN-capped quasi-1D TaSe 3 metallic nanowires: prospects of interconnect applications. Nanoscale 2016, 9, 15774 - 15782. Liu, G. ; Debnath, B. ; Pope, T. R. ; Salguero, T. T. ; Lake, R. K. ; Balandin, A. A. A charge-density-wave oscillator based on an integrated tantalum disulfide–boron nitride–graphene device operating at room temperature. Nature Nanotechnology 2016, 11, 845 - 850. 2015 Johnson-McDaniel, D. ; Comer, S. ; Kolis, J. W. ; Salguero, T. T. Hydrothermal Formation of Calcium Copper Tetrasilicate. Chemistry - A European Journal 2015, 21, 17560 - 17564. Samnakay, R. ; Wickramaratne, D. ; Pope, T. R. ; Lake, R. K. ; Salguero, T. T. ; Balandin, A. A. Zone-Folded Phonons and the Commensurate–Incommensurate Charge-Density-Wave Transition in 1 T -TaSe 2 Thin Films. Nano Letters 2015, 15, 2965 - 2973. 2014 Renteria, J. ; Samnakay, R. ; Jiang, C. ; Pope, T. R. ; Goli, P. ; Yan, Z. ; Wickramaratne, D. ; Salguero, T. T. ; Khitun, A. G. ; Lake, R. K. ; Balandin, A. A. All-metallic electrically gated 2H-TaSe 2 thin-film switches and logic circuits. Journal of Applied Physics 2014, 1154, 034305. Johnson-McDaniel, D. ; Salguero, T. T. Exfoliation of Egyptian Blue and Han Blue, Two Alkali Earth Copper Silicate-based Pigments. Journal of Visualized Experiments 2014. Pope, T. R. ; Lassig, M. N. ; Neher, G. ; III, R. D. Weimar; Salguero, T. T. Chromism of Bi 2 WO 6 in single crystal and nanosheet forms. J. Mater. Chem. C 2014, 2, 3223 - 3230. 2013 Johnson-McDaniel, D. ; Barrett, C. A. ; Sharafi, A. ; Salguero, T. T. Nanoscience of an Ancient Pigment. Journal of the American Chemical Society 2013, 135, 1677 - 1679. 2012 Yao, K. ; Manjare, M. ; Barrett, C. A. ; Yang, B. ; Salguero, T. T. ; Zhao, Y. Nanostructured Scrolls from Graphene Oxide for Microjet Engines. The Journal of Physical Chemistry Letters 2012, 3, 2204 - 2208. 2010 Vajo, J. J. ; Li, W. ; Liu, P. ; Salguero, T. T. Transition metal complex anion-based hydrogen storage material system, 2010. Blunk, R. H. ; Zhong, F. ; Salguero, T. T. ; Kirby, K. W. Conductive and hydrophilic coating for fuel cell bipolar plate, 2010. Salguero, T. T. ; Sherman, E. ; Liu, P. Chemically modified catalyzed support particles for electrochemical cells, 2010. 2009 Graetz, J. ; Chaudhuri, S. ; Salguero, T. T. ; Vajo, J. J. ; Meyer, M. S. ; Pinkerton, F. E. Local bonding and atomic environments in Ni-catalyzed complex hydrides. Nanotechnology 2009, 20, 204007/1 - 204007/8. Salguero, T. T. ; Liu, P. ; Van, Atta, S. ; Zhou, C. ; Behroozi, M. ; Phelps, A. ; Ji, C. ; Liu, Y. ; Koestner, R. Pt/Carbon electrocatalysts functionalized with phenylsulfonic acid and perfluorooctylphenyl groups. In; American Chemical Society, 2009; p. FUEL-175. 2008 Kisailus, D. ; Stanford, T. B. ; Salguero, T. T. ; Zinck, J. J. Electrically-conductive, hydrophilic and acid-resistant bipolar plates for PEM fuel cells, 2008. Salguero, T. T. ; Stanford, T. B. ; Zinck, J. J. Sol-gel coating including silica based material with pendent functional groups, 2008. 2007 Ignatov, Y. A. ; Graetz, J. ; Chaudhuri, S. ; Salguero, T. T. ; Vajo, J. J. ; Meyer, M. S. ; Pinkerton, F. E. ; Tyson, T. A. Spatial configurations of Ti- and Ni-species catalyzing complex metal hydrides: X-ray absorption studies and first-principles DFT and MD calculations. AIP Conference Proceedings 2007, 882, 642 - 644. Hong, S. H. ; Wenzel, A. G. ; Salguero, T. T. ; Day, M. W. ; Grubbs, R. H. Decomposition of Ruthenium Olefin Metathesis Catalysts. Journal of the American Chemical Society 2007, 129, 7961 - 7968. Vajo, J. J. ; Salguero, T. T. ; Gross, A. F. ; Skeith, S. L. ; Olson, G. L. Thermodynamic destabilization and reaction kinetics in light metal hydride systems. Journal of Alloys and Compounds 2007, 446-447, 409 - 414. 2004 Euliss, L. E. ; Trnka, T. M. ; Deming, T. J. ; Stucky, G. D. Design of a doubly-hydrophilic block copolypeptide that directs the formation of calcium carbonate microspheres. Chemical Communications (Cambridge, United Kingdom) 2004, 1736 - 1737. Grubbs, R. H. ; Trnka, T. M. Ruthenium-catalyzed olefin metathesis. In; Wiley-VCH Verlag GmbH & Co. KGaA, 2004; pp. 153 - 177. 2003 Grubbs, R. H. ; Morgan, J. P. ; Love, J. A. ; Trnka, T. M. Cross-metathesis of olefins directly substituted with an electron-withdrawing group using transition metal carbene catalysts, 2003. Grubbs, R. H. ; Sanford, M. S. ; Moore, J. L. ; Love, J. A. ; Trnka, T. M. Hexacoordinated ruthenium or osmium metal carbene metathesis catalysts, 2003. Grubbs, R. H. ; Sanford, M. S. ; Moore, J. L. ; Love, J. A. ; Trnka, T. M. Hexacoordinated ruthenium or osmium metal carbene metathesis catalysts, their preparation and use in polymerization of olefins, 2003. Trnka, T. M. Catalysts for olefin metathesis: ruthenium alkylidene complexes with phosphine and N-heterocyclic carbene ligands, 2003, p. 122 pp. Hejl, A. ; Trnka, T. M. ; Grubbs, R. H. Properties of terminal ruthenium carbido complexes. In; American Chemical Society, 2003; p. INOR-648. Hejl, A. ; Trnka, T. M. ; Grubbs, R. H. Terminal ruthenium carbido complexes as sigma donor ligands. In; American Chemical Society, 2003; p. INOR-647. Trnka, T. M. ; Morgan, J. P. ; Sanford, M. S. ; Wilhelm, T. E. ; Scholl, M. ; Choi, T. - L. ; Ding, S. ; Day, M. W. ; Grubbs, R. H. Synthesis and Activity of Ruthenium Alkylidene Complexes Coordinated with Phosphine and N-Heterocyclic Carbene Ligands. Journal of the American Chemical Society 2003, 125, 2546 - 2558. Grubbs, R. H. ; Trnka, T. M. ; Sanford, M. S. Transition metal-carbene complexes in olefin metathesis and related reactions. Current Methods in Inorganic Chemistry 2003, 3, 187 - 231. 2002 Grubbs, R. H. ; Chatterjee, A. K. ; Choi, T. - L. ; Goldberg, S. D. ; Love, J. A. ; Morgan, J. P. ; Sanders, D. P. ; Scholl, M. ; Toste, D. F. ; Trnka, T. M. Preparation of ruthenium alkylidene complexes as catalysts for cross-metathesis reactions of functionalized and substituted olefins, 2002. Love, J. A. ; Morgan, J. P. ; Trnka, T. M. ; Grubbs, R. H. A practical and highly active ruthenium-based catalyst that effects the cross metathesis of acrylonitrile. Angewandte Chemie, International Edition 2002, 41, 4035 - 4037. Hejl, A. ; Trnka, T. M. ; Day, M. W. ; Grubbs, R. H. Terminal ruthenium carbido complexes as σ-donor ligands. Chemical Communications (Cambridge, United Kingdom) 2002, 2524 - 2525. Trnka, T. M. ; Grubbs, R. H. ; Bill, T. G. ; Lichtenberger, D. L. Bonding of phosphine and N-heterocyclic carbene ligands with transition metals. In; American Chemical Society, 2002; p. ORGN-217. Bill, T. G. ; Lichtenberger, D. L. ; Trnka, T. M. ; Grubbs, R. H. Probing the electronic structure of N-heterocyclic carbenes through gas-phase photoelectron spectroscopy and density functional calculations. In; American Chemical Society, 2002; p. INOR-422. 2001 Trnka, T. M. ; Bonanno, J. B. ; Bridgewater, B. M. ; Parkin, G. Bis(permethylindenyl) Complexes of Thorium: Synthesis, Structure, and Reactivity. Organometallics 2001, 20, 3255 - 3264. Trnka, T. M. ; Day, M. W. ; Grubbs, R. H. Novel η3-Vinylcarbene Complexes Derived from Ruthenium-Based Olefin Metathesis Catalysts. Organometallics 2001, 20, 3845 - 3847. Trnka, T. M. ; Grubbs, R. H. The Development of L2X2Ru:CHR Olefin Metathesis Catalysts: An Organometallic Success Story. Accounts of Chemical Research 2001, 34, 18 - 29. Trnka, T. M. ; Grubbs, R. H. Functional group compatibility of ruthenium-based olefin metathesis catalysts: Reactivity with functional groups other than olefins. Abstracts of Papers, 221st ACS National Meeting, San Diego, CA, United States, April 1-5, 2001 2001, INOR-268. Trnka, T. M. ; Day, M. W. ; Grubbs, R. H. Olefin metathesis with 1,1-difluoroethylene. Angewandte Chemie, International Edition 2001, 40, 3441 - 3444. 2000 Grubbs, R. H. ; Trnka, T. M. Novel ruthenium metal alkylidene complexes coordinated with triazolylidene ligands that exhibit high olefin metathesis activity, 2000. Grubbs, R. H. ; Trnka, T. M. Toward understanding the high activity of ruthenium-based olefin metathesis catalysts coordinated with N-heterocyclic carbene ligands. In; American Chemical Society, 2000; p. INOR-130. 1999 Scholl, M. ; Trnka, T. M. ; Morgan, J. P. ; Grubbs, R. H. Increased ring closing metathesis activity of ruthenium-based olefin metathesis catalysts coordinated with imidazolin-2-ylidene ligands. Tetrahedron Letters 1999, 40, 2247 - 2250. 1997 Trnka, T. M. ; Parkin, G. A survey of terminal chalcogenido complexes of the transition metals: trends in their distribution and the variation of their M=E bond lengths. Polyhedron 1997, 16, 1031 - 1045. Howard, W. A. ; Trnka, T. M. ; Waters, M. ; Parkin, G. Terminal chalcogenido complexes of zirconium: syntheses and reactivity of Cp*2Zr(E)(NC5H5) (E = O, S, Se, Te). Journal of Organometallic Chemistry 1997, 528, 95 - 121. 1995 Trnka, T. M. ; Kerber, R. C. An unexpected byproduct in the Friedel-Crafts acrylation of ferrocene. Acta Crystallographica, Section C: Crystal Structure Communications 1995, C51, 871 - 3. Howard, W. A. ; Trnka, T. M. ; Parkin, G. Synthesis and Structure of (η5-C5Me5)2Zr(Se)CO, a Nonclassical d0 Zirconium Carbonyl Complex. Organometallics 1995, 14, 4037 - 9. Howard, W. A. ; Trnka, T. M. ; Parkin, G. Syntheses of the Phenylchalcogenolate Complexes (η5-C5Me5)2Zr(EPh)2 (E = O, S, Se, Te) and (η5-C5H5)2Zr(OPh)2: Structural Comparisons within a Series of Complexes Containing Zirconium-Chalcogen Single Bonds. Inorganic Chemistry 1995, 34, 5900 - 9. Of note: click
