Research Group


2021 Holiday gathering at Central Park ice skating rink.

Nov 2022 coffee break

Esposito Research Group coffee break.

Professor Dan Esposito
Group Advisoresposito220
Daniel (Dan) Esposito received his B.S. in Chemical Engineering from Lehigh University and his Ph.D. in Chemical Engineering at the University of Delaware. After studying as a postdoc at the National Institute of Standards and Technology (NIST), he became an Assistant Professor in the Department of Chemical Engineering at Columbia University. At Columbia, he leads the Solar Fuels Engineering Lab, which combines its expertise in electrochemical and catalytic sciences with core chemical engineering principles to develop design rules for innovative electrochemical and solar energy conversion technologies. Prof. Esposito is a recipient of the National Science Foundation CAREER award, and his lab receives funding from a combination of federal agencies and industrial sponsors.

E-mail: de2300(at)columbia(dot)edu

CV              Faculty Profile

Postdocs and Ph.D. students

Marissa Beatty
Ph.D. Student


Marissa received her B.S. in chemical engineering from Michigan State University. Now a Ph.D. candidate at Columbia University, Marissa’s research focuses on developing membrane coated electrocatalysts for a variety of solar fuels applications. Outside of research you can find Marissa practicing ballet, Texas hold ’em, and re-watching Jurassic Park (or any other 90s films).

Xueqi Pang
Ph.D. Student


Pang grew up in Dalian, China and received his B.S. in Chemical Engineering from University of Delaware. His current research interests include water electrolysis, carbon dioxide electrochemical reduction, electrochemical flow cells. Outside of lab, Pang enjoys playing acoustic guitar and having fun with friends.

Robert Stinson
Ph.D. Student


Robert was born and raised in southeast Michigan and attended the University of Michigan where he received a B.S. in chemical engineering. Currently a PhD track student at Columbia University, he is beginning work on Z-scheme photocatalysis for the production of solar fuels. Outside of Lab, you can find Robert playing soccer, attending comedy shows, and cooking.

Daniela Fraga Alvarez
Ph.D. Student


Daniela grew up in Quito, Ecuador and received her B.S in Chemical Engineering from Worcester Polytechnic Institute (WPI). She is a first year Ph.D student and her research interests are water electrolysis and electrochemical flow cells. Outside the lab, Daniela likes to exercise, bake cookies, and meet up with friends.

Will Stinson
Ph.D. Student

Will Stinson

Will grew up in New Hampshire and received his B.S in chemical engineering at Northeastern University. After spending 3+ years in industry researching Aluminum-seawater batteries, he returned to pursue his PhD degree. His research interests include local measurements of electro and photocatalysis. Outside of the lab, you can find Will climbing, playing soccer, or training for his next adventure/race.

Daniela Bushiri
Ph.D. Student

Daniela B

Daniela A. Bushiri received her B.S. in Chemical Engineering from New Jersey Institute of Technology. She is now an NSF Graduate Research Fellow and Provost Diversity Fellow at Columbia University with a research focus on developing electrocatalysts for Nitrates/Nitrogen conversion to Ammonia. Her project is co-advised by Dr. Chen. Outside of research, Daniela enjoys dancing to afrobeats, writing poetry and having deep conversations. Daniela is proudly Congolese/South African and cares deeply about the various issues in Africa, especially the energy crisis.

Lucas Cohen
Ph.D. Student


Lucas grew up in Bucks County, Pennsylvania and attended Northeastern University, where he received his B.S. in chemical engineering and physics. He is a first year Ph.D student, and his research interests are in electrochemical energy storage and CO2 reduction. Outside of the lab, Lucas enjoys finding new restaurants to eat at, playing board games with friends, and spending time outside.

Nicole Llewellyn

Bridge-to-PhD Scholar

Nicole L

Nicole grew up in Rochester, NY and graduated with a B.S. in chemical engineering from Syracuse University. As a scholar in the Bridge to the PhD Program in STEM, a 2-year post-baccalaureate program to prepare students for a PhD, she is researching the electrification of ethylene production from propionic acid oxidation. Outside of lab, Nicole enjoys traveling, baking banana bread, and hiking.

Amanda Baxter

Amanda Baxter

Amanda grew up in Southern California and Colorado. She graduated from McPherson College with a B.S. in chemistry. Then she completed her Ph.D. in chemistry at the University of Southern California. Her Ph.D. research focused on fluorine chemistry and fuel cells. Now an Earth Institute Postdoctoral Fellow, Amanda is exploring new membrane coated electrocatalysts for electrolysis devices. In her free time Amanda enjoys practicing yoga, running and helping her dog live his best life.

Ph.D. and postdoc Alums:

Anna Dorfi

Jack Davis

Xiangye Liu

Natalie Labrador

Glen O’Neil