Current Members

Senior Associates/Post-Doctors

Dr. Dejun Chen, Assistant Professor 

BS. 2006, PhD, 2012 in Chemistry, Xiamen University, China

Dejun was an exchange PhD student from Professor Shi-Gang Sun's lab at Xiamen University and studied in the TongLab from October 2009 to April 2012, which was partially supported by a two-year Chinese Scholar Council scholarship. He started a post-doc position in August 2012 working on in situ spectroelectrochemistry (SEIRAS and SERS) and Pt-based electrocatalysts for electrooxidation of small organic molecules and oxygen reduction. He then started his current appointment of teaching assistant professor in the Environmental Metrology & Policy Graduate Program in Fall 2018.

Graduate Students

BS (2019) in chemistry from Grove City College (Grove City, PA).

Lisa joined the Tong Lab in Fall 2022. Her current project focuses on mechanistic investigation of electrochemical oxidation of methane under mild condition by using electrochemical mass spectrometry and density functional theory calculations. Outside of research, Lisa enjoys dancing (Korean pop and ballroom), rock climbing, and cuddling with her cat

BS (2017) in chemistry from University of Jos, Plateau, Nigeria

Jude joined the Tong Lab in Fall 2023. His current project focuses on synthesizing (M1Au24)SR18 (M=Pt and Pd) metal clusters and studying their electrocatalytic properties. He is interested broadly in exploring science-driven pathways to achieve sustainability goals. Beyond the lab, I enjoy engaging in thoughtful discussions on current affairs, listening to podcasts, and reflecting on a wide range of ideas. Hiking is my favorite way to connect with nature and unwind outdoors. 

BS (2019) in biochemistry from Loyola University in Chicago MS (2023) in Environmental Metrology & Policy from Georgetown University, Washington DC.

Kelsey started research in the Tong lab in Spring 2024. Her research is in the development of electrochemical techniques for remediation of environmental pollutants including per- and polyfluoroalkyn substances (PFAS). Prior to her graduate studies at Georgetown, Kelsey worked for the US Environmental Protection Agency as an analytical chemist. In her free time, Kelsey enjoys going to concerts, spending time with friends, and training for an Ironman.

BS (2019) in theoretical Chemistry, MS (2022) in Natural Product Chemistry from University of Kashan, Iran.


Ellie Joined the Tong Lab in Spring 2025. Her current research focuses on advancing the fundamental understanding of trace-level Pb cation-enhanced formic acid oxidation reaction (FAOR) by using in situ surface enhanced IR absorption spectroscopy (SEIRAS) and leveraging such highly enhanced FAOR activity to develop high-performance Direct Formic Acid Fuel Cell (DFAFC).

Beyond the research, she follows closely the current local and international affairs, reads books and listens to the podcast. She also enjoys dancing (Persian, Turkey, hip-hop), swimming and Hiking. 

BS (20xx) in chemistry from Univesity of Maryland, College Park

Grace joined the Tong Lab in Spring 2024. Her current project focuses on collaborating with NIST's Organic Metrology Group to develope non-targeted assay methods for identifying and quantifying environmental Per- and Polyfluoroalkyn substances (PFAS).

Undergraduate Students

John Dos

Biochemistry Major/Pre-med, Col’ 20xx

John joined the Tong lab in Fall 20xx