XU Guo Qin
Professor, Director (NUS Suzhou and Chongqing Research Institutes)
Ph.D., Princeton University, 1987; B.Sc., Fudan University, 1982.
Contact Information:
Office: S8-05-07
Tel: (65)-6516-3595
Fax: (65)-6779-1691
Email: chmxugq@nus.edu.sg
Research
Recognition and Achievements
- Public Administration Medal (Silver), 2020
- National Youth Award for Excellence in Science and Technology, Singapore National Youth Council, 1997
Research Interests
- Surface chemistry
- Nanostructures and photocatalysis
Research Highlight
Ref. : Tian, M.; Lyu, J.; Su, R.; Zhang, X.; Wang, K.X.; Lv, X.; Zhang, D.W.; Yang, S.W.; Yip, J.H.K.; Hao, Z.K.; Xu, G.Q. Harnessing the Power of Nano-Ferroelectrics: BaTiO3/MXene (Ti3C2Tx) Composites for Enhanced Lithium Storage. Adv. Energy Mater. 2024, 14, 2401988. We report BaTiO3/few-layered Ti3C2Tx (BT/f-Ti3C2Tx) composites through in-situ growth of BaTiO3 nanoparticles on few-layered Ti3C2Tx nanosheets using a hydrothermal method. The internal electric fields, originating from the spontaneous polarization of ferroelectric BaTiO3, enhance Li+ storage capability, while BaTiO3 nanoparticles prevent the restacking of Ti3C2Tx nanosheets. The excellent lithium storage performance of BT/f-Ti3C2Tx composites is demonstrated by electrochemical tests, dynamic analysis and theoretical calculations.
Teaching Contributions AY2024/2025
- CM5151 Energy Storage and Conversion Chemistry
Representative Publications
- Li, X.; Lyu, J.; Du, F. H.; Wang, K. X.; Tian, M.; Zhang, X.; Yang, S. W.; Hao, Z. K.; Zheng, J. W.; Xu, G. Q. Integrated Optimization Design with Inherent Element Behaviors for Bulk and Surface Stability towards 4.7 V LiCoO₂ Cathode. Nano Energy 2025, 133, 110496. DOI: 10.1016/j.nanoen.2024.110496.
- Wang, M.; Zhang, Z. B.; Lyu, J.; Qiu, J.; Gu, C.; Zhao, H.; Wang, T.; Ren, Y. W.; Yang, S. W.; Xu, G. Q.; Liu, X. G. Overcoming Thermal Quenching in X-ray Scintillators through Multi-Excited State Switching. Chem., Int. Ed. 2024, 63, e20240194. DOI: 10.1002/anie.20240194.
- Tian, M.; Lyu, J.; Su, R.; Zhang, X.; Wang, K. X.; Lv, X.; Zhang, D. W.; Yang, S. W.; Yip, J. H. K.; Hao, Z. K.; Xu, G. Q. Harnessing the Power of Nano-Ferroelectrics: BaTiO₃/MXene (Ti₃C₂Tₓ) Composites for Enhanced Lithium Storage. Energy Mater. 2024, 14, 2401988. DOI: 10.1002/aenm.202401988.
- Zhang, X.; Wang, K. X.; Qiu, J. H.; Tian, M.; Guo, H. L.; Yang, S. W.; Lyu, J.; Xu, G. Q. Low Cobalt Single Atoms Loading on N-Doped Carbon for High Na Storage Performance. Nano Energy 2024, 129, 110018. DOI: 10.1016/j.nanoen.2023.110018.
- Hao, Z. K.; Lyu, J.; Tian, M.; Zhang, X.; Wang, K. X.; Yang, S. W.; Zhang, Y. X.; Xu, G. Q. Unraveling the Synergistic Effects of Oxygen Vacancy and Amorphous Structure on TiO₂ for High‐Performance Lithium Storage. Small Struct. 2024, 5, 2300442. DOI: 10.1002/sstr.202300442.
- Zhang, X.; Wang, K. X.; Qiu, J. H.; Tian, M.; Yip, J. H. K.; Hao, Z. K.; Xu, G. Q. Pristine Cobalt Humic Acid Xerogels Embedded with Ultrafine Cobalt Sulfide for Enhanced and Stable Lithium-Ion Storage. Colloid Interface Sci. 2024, 663, 902–908. DOI: 10.1016/j.jcis.2023.11.018.
