Group Members

Principal Investigator

hector_abruna

Dr. Héctor D. Abruña
E-mail |
Office | PSB 293

Senior Research Associate

Dr. Hongsen Wang
E-mail | hw99@cornell.edu
Office | PSB 216
 
Hongsen focuses on developing differential electrochemical mass spectrometry (DEMS) techniques and in-situ electrochemical FTIR spectroscopy to characterize and evaluate fuel cell and lithium ion battery electrode materials and electrolytes, exploring new electrode materials and improving the efficiency and stability of fuel cells and lithium ion batteries. He is also interested in mechanistic studies of small molecule oxidation and oxygen reduction reactions on Pt based catalysts, which are fuel cell related electrode reactions. Currently he mainly focus on profoundly understanding of CO electrocatalytic oxidation mechanism on Pt binary catalysts in acidic and basic media using in-situ techniques such as DEMS and FTIR , as well as DFT calculation and kinetic Monte Carlo simulations. In his spare time, he enjoys playing with his kids.

Post Docs

seung-ho_yu

Dr. Seung-Ho Yu
E-mail | sy578@cornell.edu
Office | PSB 202
 
Seung-Ho’s research focuses on mechanistic studies of rechargeable battery electrodes using in situ electron microscopy and X-ray techniques. He is also interested in designing and developing new electrode materials with high power and high capacity at the nanoscale level to be applied to electrochemical devices. In his free time, he enjoys playing soccer and listening to music.

Dr. Mahdi Ahmadi
E-mail | ma2259@cornell.edu
Office | PSB 284
 
Mahdi’s research interest focuses on synthesis and characterization of nanocatalysts, and exploring their evolution under reaction condition using operando spectroscopy and microscopy. In his spare time, Mahdi enjoys swimming, biking and running.

Dr. Matej Velicky
Marie Skłodowska-Curie Research Fellow
E-mail | mv337@cornell.edu
Office | PSB 284
 
Matej is working on understanding the fundamental electrochemistry of two-dimensional materials, such as graphene, MoS2, and hBN, using advanced nanofabrication and characterization techniques. His project connects Cornell with the University of Manchester and National Physical Laboratory (UK), and J.Heyrovsky Institute of Physical Chemistry (Czech Republic). His other interests include astronomy, music, and running.

Graduate Students

Yin Xiong
E-mail | yx327@cornell.edu
Office | PSB 296
 
Yin’s research mainly focuses on the synthesis and modification of nanoparticles with different structures, and explores their electrochemical catalytic ability and also the potential application in fuel cell. In the free time, she enjoys cooking and good food.

Na Zhang
E-mail | nz92@cornell.edu
Office | PSB 202
 
Na focuses on developing cathode materials for lithium/sulfur batteries. In particular, Na is interested in preparation and characterization of different sulfur/carbon or lithium sulfide/carbon compounds as cathodes for Li/S batteries.

Xinran Feng
E-mail | xf59@cornell.edu
Office | PSB 296
 
Xinran’s research focuses on using high-energy synchrotron X-ray techniques to study metal oxide electrode materials in Li ion batteries. She applies operando method to analyze the mechanism of these materials while cycling the batteries. In her free time, Xinran loves traveling, cooking and binge watching Netflix.

Jeesoo Seok
E-mail | js3272@cornell.edu
Office | PSB 202
 
Jeesoo’s research interest focuses on sodium-ion batteries and organic redox flow batteries. She synthesizes metal oxides/sulfides via solid-state reaction and applies them into sodium-ion batteries.  Also, Jeesoo studies organic materials based on electrochemical analysis for redox flow batteries. Outside of the lab, she likes cooking and baking.

Yao Yang
E-mail | yy639@cornell.edu
Office | PSB 202
 
Yao’s main focus is on the electrocatalysis of oxygen reduction reaction and hydrogen oxidation reaction (ORR/HOR) in alkaline fuel cells. Yao collaborates with Prof. David Muller’s group (Applied and Engineering Physics) and uses in-situ electrochemical scanning transmission microscopy and electron energy loss spectroscopy (STEM/EELS) to probe the structure-activity relationship of electrocatalysts. In his spare time, he loves learning about different cultures and enjoys playing pingpong and badminton.

Xinyao Lu
E-mail | xl626@cornell.edu
Office | PSB 218
 
Xinyao’s research interest focuses on developing materials for oxygen reduction reaction (ORR) in fuel cells. She mainly studies the structural dependence of the electrochemical properties of the catalyst. She enjoys dancing and playing the piano in her leisure time.

Cara Gannett
E-mail | cng42@cornell.edu
Office | PSB 218
 
Cara’s research experience includes work with lithium ion battery materials and catalysts for the oxygen evolution reaction (OER). In her free time, Cara enjoys running, baking, doing crafts, and playing board games.

Andrés Molina Villarino
E-mail | am2878@cornell.edu
Office | PSB 284
 
​Andy’s research experience includes oxygen reduction reaction (ORR) catalysts for alkaline fuel cells, fundamentals of semiconductor/metal junctions for photoelectrochemical water splitting, and the application of redox-active organometallics for antimicrobial coatings. In his free time, he enjoys playing music and expanding on his ‘boricua’ cuisine.

Rui Zeng
E-mail | rz339@cornell.edu
Office | PSB 218
 
Rui’s research interest includes advanced analytical techniques, like Scanning Electrochemical Microscopy (SECM) and Differential Electrochemical Mass Spectrometry (DEMS) for energy-related applications. In his spare time, he enjoys handwriting, painting and cooking.

Undergraduate Students

Cathy Kyoko Badding
E-mail | ckb68@cornell.edu
Office | PSB 284
 
Cathy’s research experience includes investigating inorganic catalysts for the oxygen evolution reaction and the hydrolysis of ammonia borane. Cathy now focuses on semiconductor photoelectrochemistry for solar fuels. In her free time, she collects pens, takes long walks, and listens to podcasts.

 

Leah Herrera
E-mail | lh585@cornell.edu
Office | PSB 296
 
CHAMPS 2018