Luis R. De Jesús Báez

PhD

Luis R. De Jesús Báez.

Luis R. De Jesús Báez

PhD

Luis R. De Jesús Báez

PhD

Research Interests

Inorganic and solid-state materials synthesis; electrochemical synthesis; layered materials; strained materials; high-entropy alloys; energy-storage devices; heterogeneous catalysis; water treatment; ab-initio density functional theory calculations of X-ray spectra; X-ray synchrotron science

Education

  • Provost Postdoctoral Fellow, Department of Chemistry, University of Pennsylvania, Philadelphia, PA (2019-2022)
  • Eberly College of Science Postdoctoral Fellow, Department of Chemistry, Pennsylvania State University, State College, PA (2018-2019)
  • PhD, Department of Chemistry, Texas A&M University, College Station, TX (2013-2018)
  • BS, Department of Chemistry, Universidad de Puerto Rico en Cayey, Cayey, PR (2008-2012)

Awards and Honors

  • 2019 ACS Division of Inorganic Chemistry Young Investigator Award (August 2019)
  • IUPAC–Solvay International Young Chemists Award (July2019)
  • Robert S. Hyer Graduate Research Award, Texas Section–American Physical Society (October 2018)

Specializations

  • Synchrotron-based X-ray characterization
  • Inorganic and solid-state material synthesis
  • Electronic structure elucidation
  • Surface chemistry of inorganic materials

Research Summary

Strained Layered Materials as Electrodes for Energy-Storage Devices

This work looks to elucidate on the stability and change in reactivity of layered materials in relation to tailored strain-site patterns on the material. The presence of stress and the resulting strain has been demonstrated to modify the local electronic structure of the material, increasing (or decreasing) reactivity, and modifying its properties. We seek to grow transition-metal dichalcogenides on templated Si/SiOx wafers that matches the desired patterns. The performance of the resulting products is then evaluated using electrochemical characterization techniques, and its surface chemistry is evaluated by Raman mapping spectroscopy, X-ray diffraction, and XAS.

Elucidation of the Phase Diffusion Mechanisms within High Entropy Alloys

High entropy alloys and oxides (HEA/HEO) are a novel class of materials in high-composition space. These materials are usually comprised of 5 or more transition metals within the unit cell. We seek to understand the phase transformation phenomena that occur on this system. Phase transformations of this system occurs in the presence of temperature, heat, or oxidative/reduction environments. We will be focusing on stimuli originating from electrical potential and oxidative/reduction environments.

Chemically Tailored Layered Double Hydroxides as Pollutant Remediation Technology

Layered double hydroxides (LDHs) are lamellar inorganic solids that are comprised of positively charged brucite-type layers of divalent and trivalent metals with exchangeable intercalated anions present in between the layers to compensate the net positive charge, with general formula The general formula of [M1-x2+Mx3+(HO-)2]x+(Am−)x/m·nH2O. The chemical diversity of this solid allows for an unprecedented tailoring of the properties of the material. In addition, the lamellar nature of this solid allows for facile intercalation of both organic and inorganic species in between the layers. We propose to use these LDHs as pollutant remediation technologies where precise capture and degradation of the undesired specie can be achieved.

Selected Recent Publications

  • De Jesus, L. R.; Rosas, A. S.; Mahale, P.; and Mallouk, T. E. A chelation-based route to aluminum free layered transition metal carbides (MXenes), 2022, submitted for publication.
  • De Jesus, L. R., A Puerto Rican Chemist with Coffee, Pure and Applied Chemistry, 2020, 92, 12, 2015-2018. (Invited manuscript for the 2020 Diamond Jubilee Issue)
  •  Andrews, J. L.; Stein, P.; Santos, D. A.; Chalker, C. J.; De Jesus, L. R.; Davidson, R. D.; Gross, M. A.; Pharr, M.; Batteas, J. D.; Xu, B.-X.; Banerjee, S. Curvature-Induced Modification of Mechano-Electrochemical Coupling and Nucleation Kinetics in a Cathode Material, Matter, 2020, 3, 1754-1773
  •  Mahale, P.; Moradifar, P.; Cheng, H. Y; Nova, N.; Grede, A.; Lee, B.; De Jesus L. R.; Wetherington, M.; Giebink, N.; Badding, J.; Alem, N.; and Mallouk, T. E. An Oxide-Free 3-Dimensional Germanium/Silicon Core-Shell Metalattice Made by High Pressure Confined Chemical Vapor Deposition, ACS Nano, 2020, 14, 10, 12810–12818
  •  Sellers, D. G.; Braham, E. J.; Villareal, R.; Zhang, B.; Parija, A.; Brown, T. D.; Alivio, T. E. G.; Clarke, H.; De Jesus, L. R.; Zuin, L.; Prendergast, D.; Qian, X.; Arroyave, R.; Shamberger, P. J.; and Banerjee, S. Atomic Hourglass and Thermometer Based on Diffusion of a Mobile Dopant in VO2. Journal of the American Chemical Society, 2020, 142, 36, 15513–15526
  •  De Jesus, L. R.; Andrews, J. L.; Parija, A.; and Banerjee, S. Defining Diffusion Pathways in Intercalation Cathode Materials: Some Lessons from V2O5 on Directing Cation Traffic, ACS Energy Letters, 2018, 3, 915-931.