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2. Collaborators

Dr. Thomas C. Allison

Chemical Sciences Division, Materials Measurement Laboratory, NIST

Dr. Allison's research interests include studies of nanoparticles, electrochemistry, solvation thermodynamics, and development of semiempirical quantum chemistry methods. Current projects include studies of the Fukui function applied to transition metal nanoparticles, the aqueous solvation thermodynamics of ATP and related biomolecules, and the development of convenient methods for parameterizing tight binding models. The DFT calculations by Dr. Allison and his post-docs are organically incorporated with the experimental research in Tong Lab, which provides theoretical justifications of as well as predictive guidance to experimental work.

Learn more about Dr. Allison's research

Sandia National Lab

Dr. Sorte is currently a post-doc staff scientist at DOE's Sandia National Lab's NMR group. Dr. Sorte will continue collaborate with TongLab on several in situ electrochemical NMR projects he started in the lab.

Professor Shi-Gang Sun

Department of Chemistry, Xiamen University, Xiamen China

This collaboration was supported by a NSF International Collaboration in Chemistry grant (CHE-0923910) and is centered on the nanoscale single-crystal ensemble electrocatalysis that inlcudes: (1) Use the shape and size as critical variables to study systematically the associated electrocatalytic performance of the shape-controlled Pt NPs in the electro-oxidation of diverse small organic molecules. In order to establish benchmark nanoscale structure-functionality relationships, the activity study will be coupled with concerted and detailed mechanistic characterizations of the systems by the most advanced EC and a battery of in situ spectroscopic methods including the signature EC-NMR and infrared (IR) methodologies developed respectively in Tong and Sun labs. (2) Compare and contrast the results obtained in (1) with those obtained on bulk single crystal surfaces for bridging the structural and environmental gaps. (3) Based on the shape and size controlled strategy, explore and study core-shell bimetallic systems made by methods such as UPD, electroless deposition, electrolysis, or wet chemistry reduction in order to expand the scope of the research. (4) Compare and contrast our benchmark results with the available theoretical models for bettering our general fundamental understanding.

Professor Yung Eun Sung

School of Chem & Bio. Eng, Seoul National University, Korea

The collaboration is centered on developing the novel Pt-195 NMR based metrology in analyzing the spatially-resolved Pt concentra- tion in Pt-based bimetalli electrocatalysts using the RKKY J coupling caused slow-beat analysis. See our recent JACS Communication for more details

Professor Masatoshi Osawa

Catalysis Research Center, Hokkaido University, Kita-ku, Sapporo 001-0021, Japan

The collaboration is centered on developing in -situ surface enhanced infrared reflection adsorption spectroscopy (SEIRAS) in Prof. Tong's lab.  Prof. Osawa is the world leader of this technique. As a recipient of NSF's Asia & Pacific Summer Institute, graduate student Ceren Susut from Tong lab spent two months in Prof. Osawa's lab learning the SEIRAS technique. She is currently building this capability in the lab.

Professor Tetsu Yonezawa

Division of Materials Science and Engineering, Hokkaido University, Japan

The collaboration between Tetsu and YuYe goes back to the early 90s at EPFL, Switzerland when both were still graduate students. It led to a joint paper on 195Pt NMR of PtPd bimetallic nanoparticles. They then overlapped in 1995 as visiting staff scientists at l'Institut de Recherches sur la Catalyse,  CNRS, Villeurbanne, France. In the Summer of 2002, supported by a Georgetown International Initiatives Collaborative Research Grant, Tetsu came to visit YuYe's lab, starting the collaboration between their own groups. As a consequence, more joint papers are coming along. Currently, Tetsu is a professor of Materials Science and Engineering at Hokkaido University, Japan.