곽규주 / Kyu Ju Kwak

 

Postdoctoral Fellow
kkj818@yonsei.ac.kr
Research Interests: Electrochemistry and Catalysis of Quantum-Sized Metal Nanoclusters20
Energy Gap Law for Exciton Dynamics in Gold Cluster Molecules
K. Kwak, V. D. Thanthirige, K. Pyo, D. Lee, G. Ramakrishna
J. Phys. Chem. Lett. 2017, 8, 4898
A molecule-like PtAu24(SC6H13)18 nanocluster as an electrocatalyst for hydrogen production
K. Kwak†, W. Choi†, Q. Tang, M. Kim, Y. Lee, D.-e. Jiang, D. Lee (†equal contribution)
Nature Commun., 2017, 8, 14723.
Temperature-Dependent Absorption and Ultrafast Exciton Relaxation Dynamics in MAu24(SR)18 Clusters (M = Pt, Hg): Role of the Central Metal Atom
V. D. Thanthirige†, M. Kim†, W. Choi, K. Kwak, D. Lee, G. Ramakrishna (†equal contribution)
J. Phys. Chem. C, 2016, 120(40), 23180–23188
Efficient Oxygen Reduction Electrocatalysts Based on Gold Nanocluster–Graphene Composites
K. Kwak, U. P. Azad, W. Choi, K. Pyo, M. Jang, D. Lee
ChemElectroChem, 2016, 3(8), 1253-1260
Interconversion between Superatomic 6-Electron and 8-Electron Configurations of M@Au24(SR)18 Clusters (M = Pd, Pt)
K. Kwak, Q. Tang, M. Kim, D. Jiang, D. Lee
J. Am. Chem. Soc., 2015, 137(33), 10833–10840
Ultrabright Luminescence from Gold Nanoclusters: Rigidifying the Au(I)–Thiolate Shell
K. Pyo†, V. D. Thanthirige†, K. Kwak, P. Pandurangan, G. Ramakrishna, D. Lee (†equal contribution)
J. Am. Chem. Soc., 2015, 137(25), 8244–8250
Information on quantum states pervades the visible spectrum of the ubiquitous Au144(SR)60 gold nanocluster
H.-Ch. Weissker, H. Barron Escobar, V. D. Thanthirige, K. Kwak, D. Lee, G. Ramakrishna, R. L. Whetten, X. Lopez Lozano
Nature Commun., 2014, 5, 3785
Ionic Liquid of a Gold Nanocluster: A Versatile Matrix for Electrochemical Biosensors
K. Kwak, S. S. Kumar, K. Pyo, D. Lee
ACS Nano, 2014, 8(1), 671–679
Tetrathiafulvalene-annulated [28]hexaphyrin(1.1.1.1.1.1): a multi-electron donor system subject to conformational control
A. Jana, M. Ishida, K. Cho, S. K. Ghosh, K. Kwak, K. Ohkubo, Y. M. Sung, C. M. Davis,V. M. Lynch, D. Lee, S. Fukuzumi, D. Kim, J. L. Sessler
Chem. Commun., 2013, 49, 8937-8939
Comparative Electrochemical and Photophysical Studies of Tetrathiafulvalene-Annulated Porphyrins and Their Zn(II) Complexes: The Effect of Metalation and Structural Variation
A. Jana, M. Ishida, K. Kwak, Y. M. Sung, D. S. Kim, V. M. Lynch, D. Lee, D. Kim, J. L. Sessler
Chem. Eur. J., 2013, 19, 338-349
Electrochemical Characterization of Water-Soluble Au25 Nanoclusters Enabled by Phase-Transfer Reaction
K. Kwak, D. Lee
J. Phys. Chem. Lett., 2012, 3(17), 2476–2481
Selective determination of dopamine using quantum-sized gold nanoparticles protected with charge selective ligands
K. Kwak, S. S. Kumar, D. Lee
Nanoscale, 2012, 4, 4240-4246 (Invited Paper).
Amperometric Sensing Based on Glutathione Protected Au25 Nanoparticles and Their pH Dependent Electrocatalytic Activity
S. Senthil Kumar, K. Kwak, D. Lee
Electroanalysis, 2011, 23(9), 2116-2124 (Invited Paper).
Directional Electron Transfer in Chromophore-Labeled Quantum-Sized Au25 Clusters: Au25 as an Electron Donor
Mary Sajini Devadas, K. Kwak, G. Ramakrishna, D. Lee
J. Phys. Chem. Lett., 2010, 1(9), 1497–1503