Physical Chemistry of Polymers & Nanocomposites, Analysis of Complex Organic Matter, Solid-state NMR Methods

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Home | Research Interests | Selected Publications

Selected Publications

A) Nanocomposites and other nanostructured materials

1. "Nonaromatic Core-Shell Structure of Nanodiamond from Solid-State NMR", X.-W. Fang, J.-D. Mao, E. M. Levin, K. Schmidt-Rohr, J. Am. Chem. Soc.131, 1426-1435 (2009).
2. "Solid-State ¹³C NMR Characterization of Carbon-Modified TiO₂", E. M. Rockafellow, X-W. Fang, K. Schmidt-Rohr, W. S. Jenks, Chem. Mater. 21, 1187-1197 (2009).
3. "Self-assembled calcium phosphate nanocomposites using block copolypeptide templates", Y-Y. Hu, Y. Yusufoglu, M. Kanapathipillai, J. Yang, P. Thiyagarajan, T. Deming, M. Akinc, K. Schmidt-Rohr, S. Mallapragada Soft Matter 5, 4311-4320 (2009).
4. "Synthesis and characterization of ionic block copolymer templated calcium phosphate nanocomposites", M. Kanapathipillai, Y.Yusufoglu, A. Rawal, Y.-Y. Hu, C.-T. Lo, P. Thiyagarajan, Y.E. Kalay, M. Akinc, S. Mallapragada, K. Schmidt-Rohr, Chem. Mater. 20, 5922-5932 (2008).
5. "The Dispersion of Silicate in Tricalcium Phosphate Elucidated by Solid-State NMR", A. Rawal, X. Wei, M. Akinc, K. Schmidt-Rohr, Chem. Mater. 20, 2583-2591 (2008).
6. "A new NMR method for determining the particle thickness in nanocomposites, using T_2,H-selective X{¹H} recoupling", K. Schmidt-Rohr, A. Rawal, X.-W. Fang, J. Chem. Phys. 126, 054701-(1-16) (2007),

B) Nafion fuel cell membrane

1. "Parallel Cylindrical Water Nanochannels in Nafion Fuel Cell Membranes", K. Schmidt-Rohr, Q. Chen, Nat. Mater. 7, 75-83 (2008).
2. "Backbone Dynamics of the Nafion Ionomer Studied by ¹⁹F-¹³C Solid-State NMR", Q. Chen, K. Schmidt-Rohr, Macromol. Chem. Phys. 208, 2189-2203 (2007).

C) Structure of natural organic matter:

1. "Quantitative ¹³C NMR of Whole and Fractionated Iowa Mollisols for Assessment of Organic Matter Composition", X-W. Fang , T. Chua, K. Schmidt-Rohr, M. L. Thompson, Geochim. Cosmochim. Acta 74, 584-598 (2010).
2. "Chemical and nanometer structure of kerogen and its change during thermal maturation investigated by advanced solid-state ¹³C NMR spectroscopy", J-D. Mao, X-W. Fang, Y. Lan, A. Schimmelmann, M. Mastalerz, L. Xu, K. Schmidt-Rohr, Geochim. Cosmochim. Acta 74, 2110-2127 (2010).
3. "Characterization of Biochar from Fast Pyrolysis and Gasification Systems", C. E. Brewer, K. Schmidt-Rohr, J. A. Satrio, R. C. Brown, Environ. Progr. Sust. Energy 28, 386-396 (2009).
4. "The Fate of the Amino Acid in Glucose-Glycine Melanoidins Investigated by Solid-State NMR", X-W. Fang, K. Schmidt-Rohr, J. Agri. Food Chem. 57, 10701-10711 (2009).
5. "Nitrogen-Bonded Aromatics in Soil Organic Matter and Their Implications for a Yield Decline in Intensive Rice Cropping", K. Schmidt-Rohr, J-D Mao, D.C. Olk, Proc. Nat. Acad. Sci. 101, 6351-6354 (2004).

D) Thermoelectric tellurides

1. "Broadband "Infinite-Speed" Magic-Angle Spinning NMR Spectroscopy", Y.Y. Hu, E. L. Levin, K. Schmidt-Rohr, J. Am. Chem. Soc. 131, 8390 (2009).
2. "Electronic Inhomogeneity and Ag:Sb Ratio in Ag_1-xPb₁₈Sb_1+yTe₂₀ High-Performance Thermoelectrics Elucidated by ¹²⁵Te and ²⁰⁷Pb NMR", E. M. Levin, B. A. Cook, M. G. Kanatzidis, K. Schmidt-Rohr, Phys. Rev. B, 115211-1 to -6 (2009).
3. "Antimony as an Amphoteric Dopant in Lead Telluride", C. M. Jaworski, J. Tobola, E. M. Levin, K. Schmidt-Rohr, J. P. Heremans, Phys. Rev. B 80, 125208-1 to -10 (2009).