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Maggard Research Laboratory Group


September 2014 (L to R):
Brandon Zoellner, Zahirul Sohag, Jonathan Boltersdorf, Nacole King, Lan Luo, and Ian Sullivan
Not Pictured:
Danielle Nugent (undergraduate), Matthew Hursey (undergraduate), and Prof. Paul Maggard


Biographies of Graduate Students


Nacole King (5th year)
Nacole B. King, a native of Norfolk, VA, graduated summa cume laude from Virginia State University in 2010 with a Bachelor's of Science degree in Chemistry and a minor in Mathematics. She began doctoral research studies under the mentorship of Prof. Paul A. Maggard at North Carolina State University in August 2010. Her research interests include the flux synthesis of mixed-metal niobate and tantalate compounds, and investigations of their structural, optical, and photoelectrochemical properties.

Figure - Structural picture of CuNb3O8 (left) and electronic structure calculations (right).

Poster presentation: 2014 NCSU Department of Chemistry Poster Session

Publications:

• Boltersdorf, J.; King, N.; Maggard, P.A.
(invited highlight) "Flux-mediated crystal growth of metal oxides: Synthetic tunability of particle morphologies, sizes, and surface features for photocatalysis research" CrystEngComm, ASAP (online).
• King, N.; Sommer, R.D.; Watkins-Curry, P.; Chan, J.; Maggard, P.A. "Synthesis, structure, and thermal instability of the Cu2Ta4O11 phase" under revision (2014).
• King, N.; Sahoo, P.; Fuoco, L.; Stewart, S.; Dougherty, D.; Yi. Li; Maggard, P.A. "Cu-Deficiency in the p-type semiconductor Cu(1-x)Nb3O8", Chem. Mater. 2014, 26(6), 2095-2104.
• Choi, J.; King, N., Maggard, P.A. "Metastable Cu(I)-Niobate Semiconductor with a Low-Temperature, Nanoparticle-Mediated Synthesis"ACS Nano 2013, 7(2) 1699-1708.
• Matos, T.; King, N.; Simmons, L.; Walker, C.; McClain, A.; Mahapatro, A.; Rispoli, F.; McDonnell, K.; Shah, V. "Microwave assisted lipase catalyzed solvent-free poly-ε-caprolatone synthesis"Green Chemistry Letters and Reviews 2011.4:1, 73-79

Awards:
• Recipient of Women Chemist Committee/ Eli Lilly Travel Award to National ACS Fall 2013 Meeting Indianapolis, IN.
• 1st place, Best Paper Award, Analytical Instrumentation Facility (NCSU), awarded at the Materials Research Society Joint Symposium (2014).

Lan Luo (5th year)
Lan Luo is a native of Taiyuan, China. She graduated from the Nanjing University of Science & Technology in the Department of Chemistry. In the fall 2008, she performed research under the supervision of Professor Junwu Zhu in the Key Laboratory of Soft Chemistry and Functional Materials on the synthesis of graphene-MnS nanocomposites. After completing her Bachelor’s degree in 2010, she began her doctoral studies at North Carolina State University under the mentorship of Prof. Paul A. Maggard. Her doctoral research focuses on heterometallic oxide/organic hybrid solids, characterization of their structures by single-crystal X-ray diffraction, and new investigations of their optical and photocatalytic properties.

Figure - Structural pictures of a new mangenese-vanadate (left) and copper-molybdate hybrid (right).

Poster presentation: 2014 NCSU Department of Chemistry Poster Session

Publications:

• Luo, L.; Maggard, P.A. "Effect of ligand coordination on the structures and visible-light photocatalysis of manganese-vanadate hybrids" Cryst. Growth. Des. 2013, 13(12), 5282-5288..
• Luo, L.; Lin, H.; Li, L.; Smirnova, T.I.; Maggard, P.A. "Copper-organic/octamolybdates: Structures, bandgap sizes, and photocatalytic activities for hydrogen and oxygen production" Inorg. Chem., 2014, 53(7), 3464-3470.

Jonathan Boltersdorf (4th year)
Jonathan Boltersdorf is originally from Woodbridge, Virginia. He graduated from James Madison University in Harrisonburg, VA with a Bachelor's of Science in Chemistry in 2011. As an undergraduate, he worked under the supervision of Prof. Barbara Reisner on the synthesis and characterization of porous inorganic-organic frameworks derived from poly(triazolyl)borate ligands. He began his doctoral studies in the research group of Prof. Paul A. Maggard in June of 2011. His current research efforts involve the solid-state and flux synthesis of silver, lead, and bismuth-containing mixed-metal oxides. New compositions and structures of crystalline oxides are being investigated in order to understand the relationship between their structural features and their optical, electronic, and photocatalytic properties.

Figure - Calculated electron densities and densities of states for Bi3Ta7O19 (left), and photocatalytic activities of several mixed-metal oxides for hydrogen production (right).


Poster presentation: 2014 NCSU Department of Chemistry Poster Session

Awards:

• H.H. Stadelmaier Award for excellence in the area of X-ray diffraction and metallurgy, awarded by the American Society for Metals (ASM) at the MRS/ASM/AVS Joint Symposium (2014).
• 2nd place research poster presentation for the Materials Research Society Joint Symposium (2014).
• Outstanding graduate research awards in the area of Inorganic Chemistry (2013 and 2014), awarded at the 14th and 15th Annual NC State Departmental Poster Session.
• 2nd place poster presentation at the NC Photochemistry Symposium (2013 and 2014).

Publications:
• Boltersdorf, J.; King, N.; Maggard, P.A. (invited highlight) "Flux-mediated crystal growth of metal oxides: Synthetic tunability of particle morphologies, sizes, and surface features for photocatalysis research" CrystEngComm, ASAP (online).
• Boltersdorf, J.; Wong, T.; Maggard, P.A. "Synthesis and optical properties of Ag(I), Pb(II), and Bi(III) tantalate-based photocatalysts" ACS Catal. 2013, 3, 2943-2953.

• Boltersdorf, J.; Maggard, P.A. "Silver-exchange of layered metal oxides and their photocatalytic activities" ACS Catal. 2013, 13(11), 2547-2555.
• Arney, D.; Fuoco, L.; Boltersdorf, J.; Maggard, P.A. "Flux synthesis of Na2Ca2Nb4O13: The influence of particle shapes, surface features, and areas on photocatalytic hydrogen production" J. Am. Ceram. Soc. 2013, 96(4), 1158-1162.

Ian Sullivan (4th year)
Ian is originally from Point Pleasant, New Jersey and received his Bachelor's of Science degree from Rutgers University. He next worked at a start-up company named Liquid Light, where he performed research on the pyridinium-catalyzed electrochemical reduction of carbon dioxide. He began his doctoral studies in the Fall of 2011 under the direction of Prof. Paul A. Maggard, and is currently investigating the structures and photoelectrochemical properties of Cu(I) tantalate phases. His research interests are in the areas of new semiconducting materials, artificial photosynthesis, nanoparticle synthesis, and dye-sensitized solar cells.

Figure - Scanning electron microsocpy image of a Cu(5-x)Ta11O30 particle with CuO surface islands (left, circled), and a polyhedral model showing the migration pathways of Cu(I) cations to the surfaces of a hexagonal-shaped cyrstal of the compound.

Poster presentation: 2014 NCSU Department of Chemistry Poster Session


Awards:

• 3rd place research poster presentation at the American Chemical Society meeting (Fall 2014).

Publications:
• Sullivan, I.; Sahoo, P.P.; Fuoco, L.; Hewitt, A.S.; Stuart, S.; Dougherty, D.; Maggard, P.A. "Cu-deficiency in the p-type semiconductor Cu(5-x)Ta11O30: Impact on its crystalline structure, surfaces, and photoelectrochemical properties" Chem. Mater., Published ASAP (online).


Brandon Zoellner (3rd year)
Brandon is a native of Pinehurst, North Carolina. In 2011, he graduated with a Bachelor's of Science degree in chemistry at the College of Charleston in Charleston, South Carolina. After receiving his undergraduate degree, he worked in the research laboratory of Dr. Lavrich for a year on the synthesis of peptides. Brandon joined the chemistry graduate program at North Carolina State Univesity in the Fall of 2012 to begin his doctoral studies under the mentorship of Prof. Paul A. Maggard . His research project focuses on the synthesis of solid solutions of mixed-metal oxides in the tantalate and niobate systems, their structural characterization from powder X-ray diffraction refinements, electronic structure calculations, as well as characterization of their optical and photoelectrochemical properties.

Figure - Structural picture of CuNbO3 and UV-Vis diffuse reflectance data of a solid solution phase.

Poster presentation: 2014 NCSU Department of Chemistry Poster Session

Publications:
• Sahoo, P.P.; Zoellner, B. "Optical, electronic, and photoelectrochemical properties of the p-type Cu(3-x)VO4 semiconductor " Under revision (2014).


Zahirul Sohag (2nd year)
Zahirul Sohag was born in Tangail, Bangladesh. He earned his undergraduate degree in Applied Chemistry & Chemical Engineering from the University of Dhaka in October 2012. He worked as an intern at GlaxoSmithKline (Bangladesh) and at the Environmental Chemistry and Materials Chemistry Lab of the Bangladesh Council of Scientific and Industrial Research. In the Fall of 2013 he joined the graduate program in chemistry at North Carolina State University and was accepted into the research group of Prof. Paul A. Maggard. His research efforts are currently in the synthesis and structural characterization of new mixed-metal oxides.


Figure - Structural pictures of two Cu(I) metal-oxide phases.