He, Kai - Clemson University - Department of Materials Science and Engineering

个人简介

Dr. He is currently an Assistant Professor of the Department of Materials Science and Engineering at Clemson University. He obtained his Ph.D. at Arizona State University, and M.S. and B.S at Harbin Institute of Technology, China. Prior to joining Clemson in 2018, he was appointed as Research Assistant Professor in the Materials Science and Engineering Department at Northwestern University after completion of postdoctoral training at University of Maryland and Brookhaven National Laboratory. Dr. He’s research interests focus on advanced electron microscopy and spectroscopy, and their implementation in functional nanomaterials used for magnetics, electronics and energy storage technologies. He has extensive experience in developing novel characterization methods, especially the state-of-the-art in-situ TEM techniques for atomically-resolved real-time imaging. He has published more than 50 peer-reviewed papers in top-ranked journals with over 1600 citations to date. Education Ph.D., Arizona State University (2010) M.S., Harbin Institute of Technology, China (2006) B.S., Harbin Institute of Technology, China (2004)

研究领域

Advanced electron microscopy: in situ, cryogenic, analytical, multi-modal, multi-dimensional methodologies Sustainable energy: batteries, catalysts, fuel cells Multifunctional nanomaterials: magnetics, electronics, spintronics, 2D quantum systems Advanced manufacturing: multicomponent alloys and ceramics

近期论文

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K. He, “In Situ Electron Microscopy for Electrically Induced Charge Transport and Phase Transformation”, Microscopy and Microanalysis, 25, 1862 (2019). C. Liu, S. L. Nauert, M. A. Alsina, D. Wang, A. Grant, K. He, E. Weitz, M. Nolan, K. A. Gray, J. M. Notestein, “Role of surface reconstruction on Cu/TiO2 nanotubes for CO2 conversion”, Applied Catalysis B: Environmental, 255, 117754 (2019). J. Gao, Y. Meng, T. Hong, S. Kim, S. Lee, K. He, K. S. Brinkman, “Rational anode design for protonic ceramic fuel cells by a one-step phase inversion method”, Journal of Power Sources, 418, 162 (2019). L. Zhao, H. H. Wu, C. Yang, Q. Zhang, G. Zhong, Z. Zheng, H. Chen, J. Wang, K. He, B. Wang, T. Zhu, X. C. Zeng, M. Liu, M.-S. Wang, “Mechanistic Origin of the High Performance of Yolk@ Shell Bi2S3@ N-Doped Carbon Nanowire Electrodes”, ACS Nano, 12, 12597 (2018). S. Kim, G. Evmenenko, Y. Xu, D. B. Buchholz, M. Bedzyk, K. He, J. Wu, V. P. Dravid, “Thin Film RuO2 Lithiation: Fast Lithium‐Ion Diffusion along the Interface”, Advanced Functional Materials, 28, 1805723 (2018). S. Kim, Z. Yao, J. M. Lim, M. C. Hersam, C. Wolverton, V. P. Dravid, K. He*, “Atomic-Scale Observation of Electrochemically Reversible Phase Transformations in SnSe2 Single Crystals”, Advanced Materials, 30, 1804925 (2018). S. Kim, V. P. Dravid, K. He*, “In Situ Atomic-Scale TEM Observation of Phase Transformation in Two-Dimensional SnSe2 Single Crystals”, Microscopy and Microanalysis, 24, 1862 (2018). K. He*, S. Kim, S. Hwang, D. Su, “Panoramic Visualization of Lithiation of Copper Sulfide by In Situ STEM”, Microscopy and Microanalysis, 24, 1498 (2018). S. Kim, H. J. Jung, J. C. Kim, K.-S. Lee, S. S. Park, V. P. Dravid, Kai He*, H. Y. Jeong, “In Situ Observation of Resistive Switching in an Asymmetric Graphene Oxide Bilayer Structure”, ACS Nano, 12, 7335 (2018). A. Bahramian, M. Rezaeivala, K. He, D. D. Dionysiou, “Enhanced visible-light photoelectrochemical hydrogen evolution through degradation of methyl orange in a cell based on coral-like Pt-deposited TiO2 thin film with sub-2 nm pores”, Catalysis Today, 335, 333 (2018). J. Lee, S. Posen, Z. Mao, Y. Trenikhina, K. He, D. L. Hall, M. Liepe, D. N. Seidman, “Atomic-scale analyses of Nb3Sn on Nb prepared by vapor-diffusion for superconducting radiofrequency cavity applications: A correlative study”, Superconductor Science and Technology, 32, 024001 (2019). Jaeyel Lee, Sam Posen, Zugang Mao, Yulia Trenikhina, Kai He, Daniel L Hall, Matthias Liepe, David N Seidman, “Atomic scale analysis of Nb3Sn on Nb prepared by a vapor-diffusion process for superconducting radiofrequency cavity applications”, (2018). arXiv:1807.03898 Y. Liu, K. He, W. Yuan, X. Jin, T. L., Y. Wang, H. L. Xin, H. Chen, C. Gao, H. Li, “Visualizing the toughening origins of gel-grown calcite single-crystal composites”, Chinese Chemical Letters, 29, 1666 (2018). DOI: 10.1016/j.cclet.2018.05.044 S. Hwang, Z. Yao, L. Zhang, M. Fu, K. He, L. Mai, C. Wolverton, D. Su, “Multi-Step Lithiation of Tin Sulfide: An Investigation Using In Situ Electron Microscopy”, ACS Nano, 12, 3638 (2018). K. He*, Z. Yao, S. Hwang, N. Li, K. Sun, Y. Du, H. Zhang, C. Wolverton, D. Su, “Kinetically-Driven Phase Transformation during Lithium in Copper Sulfide Nanoflakes”, Nano Letters, 17, 5726 (2017). D. Gürsoy, Y. P. Hong, K. He, K. Hujsak, S. Yoo, S. Chen, Y. Li, M. Ge, L. M. Miller, Y. S. Chu, V. Andrade, K. He, O. Cossairt, A. K. Katsaggelos, C. Jacobsen, “Rapid alignment of nanotomography data using joint iterative reconstruction and reprojection”, Scientific Reports, 7, 11818 (2017). J. Liu, K. He, W. Wu, T. B. Song, M. Kanatzidis, “Chalcogel-derived supported ultrafine Pt nanoparticles on chalcogenide for 4-nitrophenol reduction”, Journal of American Chemical Society, 139, 2900 (2017). W. Luc, C. Collins, S. Wang, H. Xin, K. He, Y. Kang, F. Jiao, “Ultra-thin Electrocatalysts for Carbon Dioxide Reduction”, Journal of American Chemical Society, 139, 1885 (2017). Y. H. Kuo, S. Nah, K. He, T. Hu, A. M. Lindenberg, “Ultrafast light-induced symmetry changes in single BaTiO3 nanowires”, Journal of Materials Chemistry C, 5, 1522 (2017). K. He*, “Towards Understanding Ionic Transport Mechanisms of Sodium in Graphitic Materials by In Situ TEM”, Microscopy and Microanalysis, 23, 1974 (2017).