Members

The Humphrey Group





Ph.D. Students

Graham Piburn

B.S. Chemistry, Rice University (2012)
Ph.D. Chemistry, University of Texas at Austin (2012 onwards)

Email: gwp1@utexas.edu

Graham Piburn was born in Albuquerque, New Mexico, and was raised predominantly in Fort Walton Beach, Florida. He came to Texas in 2008 to attend Rice University, where he joined Prof. Kenton Whitmire’s research group. His projects there ranged from the synthesis of single-source precursors for PbS nanoparticles to an investigation of arsenic-containing metal carbonyl clusters.

Graham’s current research in the Humphrey Group focuses on the synthesis of noble metal nanoparticles for hydrogenation catalysis.  Specifically, he is working on new trimetallic alloy nanoparticles, as well as metal oxide-supported rhodium nanoparticles for selective hydrogenation.  After graduation, Graham is interested in working in industry or teaching at a primarily undergraduate institution.







Pranaw Kunal

M.S. Chemistry, Colorado School of Mines (2013)
Ph.D. Chemistry, University of Texas at Austin (2013 onwards)

Email: pranaw@utexas.edu

Pranaw Kunal was born in Begusarai, Bihar, a northern state of India. He went to Hindu College, Delhi University for a B.Sc. in chemistry. He earned an M.Sc. from IIT Roorkee, where he worked on the synthesis of pyrozolone derivatives and was an Indian Academy of Sciences summer research fellow at IIT Kanpur. He started working for Dr. Javier Vela at Iowa State University in 2009 studying the direct functionalization of quantum dots, then joined Dr. Brian Trewyn’s group in 2011 to work on synthesizing single site catalysts supported on mesoporous silica nanoparticles. In fall 2012, he moved with Dr. Trewyn to Colorado School of Mines, where he earned his M.S. in chemistry in 2013.

His research in Humphrey Group focuses on the synthesis of alloy and core-shell nanoparticles for hydrogenation reactions. He is exploring various morphologies of nanoparticles as well. His hobbies are cooking, watching TV shows, and writing.



Junpeng He

B.S. Chemistry, Texas A&M University – Commerce (2013)
Ph.D. Chemistry, University of Texas at Austin (2013 onwards)

Email: jheorange@utexas.edu

Junpeng He was born in Canton, China in 1991. He moved to the U.S. and went to Texarkana College after graduating from high school. With Dr. Mike Buttram’s recommendation, Junpeng then attended Texas A&M University – Commerce and worked for Dr. Allan Headley and Dr. Bukuo Ni, studying asymmetric catalysis. In May of 2013 he graduated from Texas A&M University – Commerce with a B.S. in Chemistry.

Currently his research in the Humphrey group involves the synthesis of three-dimensional Phosphine Coordination Materials containing various transition metals for catalysis and gas storage. Outside of chemistry, he also enjoys playing League of Legends.






Joseph Reynolds

B.S. Chemistry, Georgia Institute of Technology (2013)
Ph.D. Chemistry, University of Texas at Austin (2013 onwards)

Email: j.e.reynolds3@utexas.edu

Joseph Reynolds was born in Atlanta, Georgia on Jan. 14, 1991, and grew up in Loganville, Georgia. Joseph attended Georgia Tech in 2009, and in his 3rd year began research with both the Tolbert and Janata groups. While at Tech, he studied the spectral and redox properties of synthetic GFP chromophores. He attended an R.E.U. in 2012 at West Virginia University with the Holcomb group. During that time, he studied NiFe2O4 heterostructures using non-linear optics at WVU and performed high energy X-ray analysis on said heterostructures at Lawrence Berkeley National Laboratory.

Currently, he is pursuing his graduate degree with the Humphrey group. His research involves the synthesis of phosphine coordination materials (PCMs) with particular interests in asymmetrical phosphine ligand synthesis and gas separations using PCMs. After completion of his graduate degree, Joseph would like to pursue a career in academia.



Luis Polanco

B.S. Chemistry, UC San Diego (2014)
Ph.D. Chemistry, University of Texas at Austin (2014 onwards)

Email: lpolanco@utexas.edu

Luis Polanco was born in Mexicali, Baja California, Mexico. He grew up in Imperial, a small town in southern California. He graduated in 2014 from UC San Diego with a B.S. in Chemistry. He worked under Dr. Seth M. Cohen functionalizing Metal-organic Frameworks.

Currently, his research focuses on the influences of support materials on metallic nanoparticle properties.









Sam Dunning

MChem Chemistry with Study in North America, University of Sheffield (2014)
Ph.D. Chemistry, University of Texas at Austin (2014 onwards)

Email: samdunning@utexas.edu

Sam Dunning was born in Middlesbrough, England. In 2010 he moved to Sheffield to pursue his Master’s degree in Chemistry. In 2012 he moved to Austin to study as part of his degree program. During this time he joined the Humphrey group as an undergraduate and began working on synthesising phosphine coordination materials. In 2013 he returned to Sheffield to complete his studies and worked for Dr Michael Morris studying nickel bis(dithiolene) complexes. In 2014 he graduated from the University of Sheffield and is extremely happy to have returned to Austin.

His research in the Humphrey group centres on the synthesis of luminescent phosphine coordination materials (PCMs) for solvent identification and trace water detection. Recently his research has shifted to focus on single-crystal-to-single-crystal metal incorporation in new, pillared PCMs. Outside of the lab his hobbies include music, watching soccer and drinking tea.





Hongyu (Chris) Guo

B.S. Chemistry, Peking University (2015)
Ph.D. Chemistry, University of Texas at Austin (2015 onwards)

Email: hongyuguo@utexas.edu

Hongyu (Chris) Guo was born in 1994 in Kuitun, Xinjian Uygur Autonomous Region, in northwestern China. He attended Peking University in 2011 and began research under Professor Yuan Wang and Yan Liu’s supervision in 2013. His research there involved the microwave synthesis of solvent-stabilized PtCu, PtCo and PtNi nanoparticles, and the electrocatalytic properties of PtCu/C for oygen reduction.

Currently, Hongyu’s research in Humphrey group involves the study of iridium nanoparticles. Outside the lab, Hongyu likes watching movies and playing badminton.









Ryan Riparetti

BSc Chemistry, UC Davis (2015)
Ph.D. Chemistry, University of Texas at Austin (2015 onwards)

Email: rriparetti@utexas.edu

Ryan Riparetti was born and raised in Monterey, California. For his undergraduate education, he went to the University of California at Davis, where he worked in Dr. Philip Power’s research group. He studied the reactivity of heavier group 14 carbene analogs, stabilized by bulky ligands.

Currently, Ryan’s research in the Humphrey group involves the synthesis of PCMs with phosphine chalcogenide bonds, functionalized with the goal to uptake toxic metal salts in an aqueous solution. In his free time, Ryan likes to attend improv shows, watch TV, and discover new music on Spotify.






Eric Sikma

B.S. Chemistry, Texas Tech University (2015)
Ph.D. Chemistry, University of Texas at Austin (2015 onwards)

Email: eric.sikma@utexas.edu

Eric Sikma was born in Fort Worth, Texas and completed his undergraduate studies at Texas Tech University. During that time, he worked in the laboratories of Dr. David Birney and Dr. Michael Findlater. He also attended an REU program at Texas State University during the summer of 2014, where he worked for Dr. Todd Hudnall. After graduation Eric began his graduate studies at the University of Texas, where he is pursuing his Ph.D. in the Humphrey group.

Eric’s current research involves the development of the first arsine coordination materials (ACMs). This work builds upon the foundation laid by the group’s work with phosphine coordination materials, and seeks to explore the potential advantages of incorporating the arsine functionality and its derivatives into metal organic frameworks. Outside the lab, Eric enjoys running and Dallas Cowboys football.







Shichao He

B.S. Chemical Engineering, Changsha University of Science & Technology (2010)
M.S. Chemical Engineering, Beijing Institute of Technology (2012)
Ph.D. Chemical Engineering, University of Texas at Austin

Email: shichaohe@utexas.edu

Shichao He was born in Baoding, in northern China. She received her Bachelor’s degree from Changsha University of Science & Technology in 2010. She received her master’s degree from Beijing Institute of Technology in 2012 under Dr. Hansheng Li’s supervision, investigating zeolite-based heterogeneous catalysts. She joined the Humphrey group in the fall of 2016 and is currently working towards her Ph.D in Chemical Engineering. Currently her research involves synthesizing new sulfur and selenium based coordinated materials for their unique magnetic properties. 







Undergraduate Students

Kelly Walsh

Kelly Walsh is a chemistry major from San Antonio, Texas and is part of the UT 2018 graduating class. She joined the Humphrey group in Spring 2016 and her research focuses on synthesizing aqueous based phosphine coordination materials. After graduation she plans on attending graduate school and pursuing a career in environmental chemistry. Her interests outside of lab include watching Spurs basketball, looking at dogs, and kayaking.














Enriqueta Torres

Enriqueta Torres came to UT to be able to experience a new environment and take advantage of different opportunities that are available at UT. She is currently pursuing a BS in chemistry and plans to attend medical school after graduating. Outside of lab Enriqueta plays tennis and watches horror movies. Her work in the group currently focuses on investigating of the adsorption and separation properties of Mg-CUK-1.













Alexandra Robles

Alexandra Robles is originally from El Paso, TX and came to UT due to the exceptional facilities and the prospect of getting a great education close to home. Alexandra’s plans after earning her Bachelor’s degree are not set in stone. Currently Alexandra is interested in going to graduate school after graduation to pursue either a PhD or Master’s degree in environmnetal engineering.
Alexandra is involved in studying luminescent PCM’s as chemical sensors whilst also investigating the synthesis of new PCMs with pillaring ligands. Outside of lab Alexandra enjoys graphic design and picture editing, baking, and playing tennis.











Gianne Nandra

Gianne Nandra was born in Solihull, England and moved to Sheffield in 2014 to start a master’s degree in Chemistry. She came on a year exchange to the University of Texas in Austin 2016 and will return to Sheffield to finish her study. Her research focuses on synthesising new MOFs as well as single-crystal-to-single-crystal metal uptake within PCM-101 for future applications in catalysis. 













Jacob Lemley

Jacob Lemley is a Chemistry and Mathematics major from Willis, Texas. He joined the Humphrey Group in Fall 2016 and his research focuses on PCM’s with Phosphine Chalcogenide bonds with the goal of toxic metal salt uptake in an aqueous solution. He hopes to study abroad in Europe his third year. His interests outside of the lab include multi-pitch rock climbing, sport climbing, bouldering, and climbing rocks outside. 









Andy Zen

Andy Zen is a junior Chemistry and Japanese major from Katy, Texas. His research focuses on the synthesis of MOFs using Arsine ligands. He is currently planning on studying abroad in Japan and attending grad school there after graduation.  













Former Members

 

Nolan Waggoner, PhD.

B.S. Chemistry, Fort Lewis College (2010)
R&D Nucleic Acid Scientist, Agilent (2010-2012)
Ph.D. Chemistry, University of Texas at Austin (2012-2016)

Jameson Tieman, Undergraduate

B.A. History, University of Texas at Austin (2012)
Post Bacc. Pre Med., University of Texas at Austin (2016)





Suliman Sharif, Undergraduate

B.S. University of Texas at Austin (2016)





Adam Conn, Undergraduate

M.Chem University of Bristol (2016)





Raymond Borrego, Undergraduate





Darcy Oakes, Undergraduate





Alice Duncan, Undergraduate





An Nguyen, M.S.

M.S. Chemistry University of Texas at Austin (2016)





Sarah Seraj, M.S.

B.S., Civil Engineering, University of Texas at Austin (2014)
M.S/Ph.D, Environmental Engineering, University of Texas at Austin (2016)





Haiqin Wan, Ph.D.

Ph. D. Chemistry, School of Chemistry and Chemical Engineering, Nanjing University (2008)
Faculty, School of the Environment, Nanjing University (2009-)





Alisha Bohnsack, Ph.D.

B.S. Chemistry, Texas A&M University (2010)
Ph.D. Chemistry, University of Texas at Austin (2015)





Beth Dewing, Undergraduate

B.S. Chemistry, University of Texas at Austin (2015)





Stephany Garcia, Ph.D.

B.S. Chemistry, Randolph-Macon College, Virginia (2010)
Ph.D. Chemistry, University of Texas at Austin (2014)





Jessica Stokes

B.S. Chemistry, University of Missouri (2013)





Taylor Kornfuehrer, Undergraduate

B.S. Chemistry, University of Texas at Austin (2016)





Nick Zinni, Undergraduate

University of Texas at Austin





Ana Nunez, Ph.D.

B.S. Chemistry, University of Texas at El Paso (2008)
Ph.D. Chemistry, University of Texas at Austin (2014)





Kate Crawford, Ph.D.

B.S. Chemistry and German, University of Michigan (2008)
Ph.D. Chemistry, University of Texas at Austin (2014)





Beau Saccoccia, Post Bacc

B.A. Mathematics, Dartmouth College (2004)
Post Bacc. Pre Med., University of Texas at Austin (2014)





Macy Stavinoha, Undergraduate

B.S. Chemistry and Psychology, University of Texas at Austin (2014)





Dr. You-Kyong Seo

B.S. Chemistry, Inje University, South Korea (2006)
Ph.D. Chemistry, Yonsei University, South Korea (2010)
Post Doc. Synthesis of PCMs, University of Texas at Austin (2013)





Maxwell Chang

B.S. Chemistry, University of Southern California (2011)




David Casto

B.S. Chemistry, University of Missouri (2011)




Wes Ehlert, Undergraduate

B.S. Chemistry, University of Texas at Austin (2014)




Jake Baumeister, Undergraduate

B.S. Chemistry, University of Texas at Austin (2014)




Sam Dunning, Undergraduate

M.Chem. Chemistry with Study in North America, University of Sheffield (2014)




Eric Nemeth

B.S. Chemistry, University of Florida (2010)




Dr. Ilich Ibarra

B.S. Chemistry, Autonomous Metropolitan University, Mexico (2005)
Ph.D. School of Chemistry, The University of Nottingham, UK (2010)
Post Doc. Synthesis of PCMs, University of Texas at Austin (2013)




Meredith Mosier

B.S. Chemistry, University of Texas at Austin (2010)





Dr. Naween Dahal

M.S. Physical Chemistry, Tribhuvan University at Kathmandu, Nepal (1997)
Ph.D. Nanomaterials Chemistry, Kansas State University, Manhattan (2010)
Post Doc. Nanomaterials Chemistry, University of Texas at Austin (2012)




Ray Foley, Undergraduate

B.S. Chemistry, Huston-Tillotson University, (2013)
NSF- REU National Science Foundation Undergraduate





Mitchell Lee, High school student

St. Mark’s School of Texas (2013)
Welch Summer Scholar Program





Suhong Kim, Undergraduate

B.S. Chemistry, Seoul National University (2012)
Reciprocal Exchange Student, University of Texas at Austin (Fall 2011 – Spring 2012)





Ellice Tan, Undergraduate

B.S. Chemistry, University of Texas at Austin (2012)





Adelekan Adewuyi, Undergradute

B.S. Chemistry, University of Texas at Austin (2012)





Andrew Lee, Undergraduate

B.S. Chemistry, University of Texas at Austin (2013)





Christine de la Torre

B.S. Chemistry, University of San Francisco (2010)





Somi Won

B.S. Chemistry, Emporia State University, Kansas (2009)





Lindsey Shear

B.S. Chemistry, University of Texas at Austin (2010)





Kiran Divakar

B.E (Hons) EEE BITS, Pilani , India (2007)
M.S. ECE, University of Texas at Austin (2011)




Lauren Song, Undergraduate

B.S. Chemistry, University of Texas at Austin (2010)




Christian Lambujon, Undergraduate

B.S. Chemistry, University of Texas at Austin (2010)