2D Titania-Carbon Superlattices Vertically Encapsulated in 3D Hollow Carbon Nanospheres Embedded with 0D TiO2 Quantum Dots for Exceptional Sodium-Ion Storage

Authors

Qingbing Xia, University of WollongongFollow
Zeheng Lin, University of Wollongong
Weihong Lai, University of WollongongFollow
Yongfei Wang, University of Science and Technology Liaoning
Cheng Ma, Central South University
Zichao Yan, University of WollongongFollow
Qinfen Gu, Australian Synchrotron Company, ANSTO
Weifeng Wei, Central South University
Jiazhao Wang, University of WollongongFollow
Zhiqiang Zhang, University of Science and Technology Liaoning
Hua-Kun Liu, University of WollongongFollow
Shi Xue Dou, University of WollongongFollow
Shulei Chou, University of WollongongFollow

RIS ID

138510

Publication Details

Xia, Q., Lin, Z., Lai, W., Wang, Y., Ma, C., Yan, Z., Gu, Q., Wei, W., Wang, J., Zhang, Z., Liu, H. Kun., Dou, S. Xue. & Chou, S. (2019). 2D Titania-Carbon Superlattices Vertically Encapsulated in 3D Hollow Carbon Nanospheres Embedded with 0D TiO2 Quantum Dots for Exceptional Sodium-Ion Storage. Angewandte Chemie - International Edition, 58 (40), 14125-14128.

Abstract

Two-dimensional (2D) superlattices offer promising technological opportunities in tuning the intercalation chemistry of metal ions. Now, well-ordered 2D superlattices of monolayer titania and carbon with tunable interlayer-spacing are synthesized by a molecularly mediated thermally induced approach. The 2D superlattices are vertically encapsulated in hollow carbon nanospheres, which are embedded with TiO2 quantum dots, forming a 0D-2D-3D multi-dimensional architecture. The multi-dimensional architecture with the 2D superlattices encapsulated inside exhibits a near zero-strain characteristic and enriched electrochemical reactivity, achieving a highly efficient Na+ storage performance with exceptional rate capability and superior long-term cyclability.