Research Interests

Supported nanoparticles are often used in heterogeneous catalysis because the support keeps the nanoparticle catalysts dispersed and helps minimize sintering and the loss of active sites. Many support-catalyst interactions exist, so the synergistic combination of catalyst, support, reactants, and products must be taken into account. In this effort, I study how the structural and catalytic properties of noble metal catalysts change by using different lanthanide scandate supports to better determine what support properties matter in various different reactions.

Education

Northwestern University - Evanston, IL
Ph.D. Candidate, Materials Science and Engineering
September 2014 - present

University of California, Berkeley - Berkeley, CA
M.S. Materials Science and Engineering
B.S. Materials Science and Engineering
August 2009 - May 2014

Fellowships

Hierarchial Materials Cluster Program
Awarded 2015

Publications

1. Controlled Two-Step Formation of Faceted Perovskite Rare-Earth Scandate Nanoparticles
   R. J. Paull, T. Ly, Z. R. Mansley, K. R. Poeppelmeier, and L. D. Marks
   Crystals 9 (2019) 218
   
   
2. Synthesis of Gadolinium Scandate from a Hydroxide Hydrogel
   R. J. Paull, Z. R. Mansley, T. Ly, L. D. Marks, and K. R. Poeppelmeier
   Inorg. Chem. 57 (2018) 4104-4108.
   
   
3. Room-temperature antiferromagnetic memory resistor
   X. Marti, I. Fina, C. Frontera, J. Liu, P. Wadley, Q. He, R. J. Paull, J. D. Clarkson, J. Kudrnovský, I. Turek, J. Kuneš, D. Yi, J-H. Chu, C. T. Nelson, L. You, E. Arenholz, S. Salahuddin, J. Fontcuberta, T. Jungwirth, and R. Ramesh
   Nature Mater. 13 (2014) 367-374.
   
   
4. Interfacial coupling in multiferroic/ferromagnet heterostructures
   M. Trassin, J. D. Clarkson, S. R. Bowden, Jian Liu, J. T. Heron, R. J. Paull, E. Arenholz, D. T. Pierce, and J. Unguris
   Phys. Rev. B 87, (2013) 124426.
   
   
5. Epitaxy-distorted spin-orbit Mott insulator in Sr₂IrO₄ thin films
   C. Rayan Serrao, Jian Liu, J. T. Heron, G. Singh-Bhalla, A. Yadav, S. J. Suresha, R. J. Paull, D. Yi, J.-H. Chu, M. Trassin, A. Vishwanath, E. Arenholz, C. Frontera, J. Železný, T. Jungwirth, X. Marti, and R. Ramesh
   Phys. Rev. B 87 (2013) 08512.

Outreach

GradSWE, Administrative Chair