Clearfield, Abraham individual record
Distinguished Professor
Positions:
overview

Our research interests are focused in solid state and materials chemistry and encompass a wide variety of projects. An important goal is the ability to design and synthesize new materials whose structure and properties can be predicted and controlled. Layered compounds are amenable to manipulation to produce new structures because of the weak forces between layers. We have learned how to separate the layers of several classes of compounds and are reconstituting them into novel materials. For example, we have prepared staged materials in which alternating layers are hydrophobic and hydrophilic.



The surfaces of our layered materials react with a variety of molecules to bond them to the surface. We are developing such materials for drug delivery, heterogeneous catalysis, and polymer-nanoparticle composites.



Single crystal X-ray diffraction has been the key tool in elucidating the structure of solids. For many compounds, single crystals are unavailable so that indirect methods need to be used. We pioneered the solution of crystal structures from X-ray powder data and have had considerable success. The methods need to be improved and extended to more complex systems such as poorly crystallized materials. Combined use of X-ray, neutron and synchrotron methods are in progress and extension to EXAFS and amorphous scattering techniques is contemplated.

selected publications
Academic Articles590
Books3
  • Clearfield, A. (2018). Zirconium phosphates. CRC Press.
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  • Brunet, E., Colón, J. L., & Clearfield, A. (2015). Preface. John Wiley & Sons, Inc.
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  • Clearfield, A., Reibenspies, J. H., & Bhuvanesh, N. (2009). Principles and Applications of Powder Diffraction. John Wiley & Sons, Ltd.
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Chapters8
  • Clearfield, A. (2015). Zirconium phosphate nanoparticles and their extraordinary properties. ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY. Tailored Organic-Inorganic Materials. (pp. 1-44). John Wiley & Sons, Inc.
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  • Clearfield, A., Perry, H. P., & Gagnon, K. J. (2013). Porous Pillared Clays and Layered Phosphates. Comprehensive Inorganic Chemistry II (Second Edition): From Elements to Applications. (pp. 169-211). Elsevier.
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  • Clearfield, A. (2012). Nature’s nanoparticles: Group IV phosphonates. Environmental Applications of Nanomaterials: Synthesis, Sorbents and Sensors, 2nd Edition. (pp. 123-157). IMPERIAL COLLEGE PRESS.
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  • Clearfield, A. (2012). Twenty-five years of nuclear waste remediation studies. Environmental Applications of Nanomaterials: Synthesis, Sorbents and Sensors, 2nd Edition. (pp. 159-206). IMPERIAL COLLEGE PRESS.
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  • Hobbs, D. T., Nyman, M., Medvedev, D. G., Tripathi, A., & Clearfield, A. (2011). Evaluation of new inorganic sorbents for strontium and actinide removal from high-level nuclear waste solutions. Inorganic Chemistry: Reactions, Structure and Mechanisms. (pp. 165-169).
Conference Papers40
chaired theses and dissertations
Email
a-clearfield@tamu.edu
First Name
Abraham
Last Name
Clearfield
mailing address
Texas A&M University; Chemistry Department; 3255 TAMU
College Station, TX 77843-3255
USA