Dai Group, Department of Chemistry,
Stanford University, Stanford, CA 94305
题目: Graphene Hybrid Nanomaterials for Electrochemical Energy Storage and Conversion: Rechargeable Lithium Batteries, Supercapacitors and Fuel Cells.
We utilize chemically derived graphene sheets as growth substrates for electrochemical functional materials such as transition metal oxides, hydroxides, chalcogenides, lithium transition metal phosphates, and sulfur. The resulted graphene hybrid nanomaterials show superior performance as electrode materials for rechargeable lithium batteries and supercapacitors and cathode catalysts for fuel cells and lithium air batteries, owing to intimate interactions between graphene and the active nanomaterials grown on them, which renders the nanomaterials electrically conducting, stabilize the nanomaterials during cycling, and generate synergistic effects in electrocatalysis. The graphene sheets also behave as a soft template in synthesis, leading to desired morphology and size of the nanocrystals grown on them.
2007-present, PhD Candidate in Chemistry, Stanford University, Stanford, CA.
2003-2007, B.A. Degree in Chemistry, Peking University, Beijing, China
Awards and Honors
? Finalist, 2011 MRS Fall Meeting Graduate Student Awards, 2011
? Stanford Graduate Fellowship, Stanford University, 2009-2011
? Gangsong Scholarship, Peking University, 2006
? Xianglu Scholarship, Peking University 2005
? Baogang Scholarship, Peking University 2004
? First Prize, National Chemistry Olympiad Final, 2003
A total of 29 peer-reviewed publications (11 first-author papers) since 2007. Below are selected ones:
. Hailiang Wang, Yongye Liang, Yanguang Li, Hongjie Dai, “Co1-xS-Graphene Hybrid: A High Performance Metal Chalcogenide Electrocatalyst for Oxygen Reduction” Angew. Chem. Int.Ed. 2011, 50, 10969–10972.
. Hailiang Wang, Yuan Yang, Yongye Liang, Joshua Tucker Robinson, Yanguang Li, Ariel Jackson, Yi Cui, Hongjie Dai, “Graphene-Wrapped Sulfur Particles as a Rechargeable Lithium–Sulfur Battery Cathode Material with High Capacity and Cycling Stability” Nano Lett. 2011, 11, 2644–2647.
. Hailiang Wang, Yuan Yang, Yongye Liang, Li-Feng Cui, Hernan Sanchez Casalongue,
Yanguang Li, Guosong Hong, Yi Cui, Hongjie Dai, “LiMn1?xFexPO4 Nanorods Grown on
Graphene Sheets for Ultrahigh-Rate-Performance Lithium Ion Batteries” Angew. Chem. Int. Ed.2011, 50, 7364–7368.
. Hailiang Wang, Li-Feng Cui, Yuan Yang, Hernan Sanchez Casalongue, Joshua Tucker Robinson, Yongye Liang, Yi Cui, Hongjie Dai, “Mn3O4-Graphene Hybrid as a High-Capacity Anode Material for Lithium Ion Batteries” J. Am. Chem. Soc. 2010, 132, 13978–13980.
. Hailiang Wang, Hernan Sanchez Casalongue, Yongye Liang, Hongjie Dai, “Ni(OH)2 Nanoplates Grown on Graphene as Advanced Electrochemical Pseudocapacitor Materials” J.Am. Chem. Soc. 2010, 132, 7472–7477.
. Hailiang Wang, Joshua Tucker Robinson, Georgi Diankov, Hongjie Dai, “Nanocrystal Growth on Graphene with Various Degrees of Oxidation” J. Am. Chem. Soc. 2010, 132, 3270-3271.