TY - JOUR
T1 - Electrostatic Self-Assembly Enabling Integrated Bulk and Interfacial Sodium Storage in 3D Titania-Graphene Hybrid
AU - Xu, Gui-Liang
AU - Xiao, Lisong
AU - Sheng, Tian
AU - Liu, Jianzhao
AU - Hu, Yi-Xin
AU - Ma, Tianyuan
AU - Amine, Rachid
AU - Xie, Yingying
AU - Zhang, Xiaoyi
AU - Liu, Yuzi
AU - Ren, Yang
AU - Sun, Cheng-Jun
AU - Heald, Steve M.
AU - Kovacevic, Jasmina
AU - Sehlleier, Yee Hwa
AU - Schulz, Christof
AU - Mattis, Wenjuan Liu
AU - Sun, Shi-Gang
AU - Wiggers, Hartmut
AU - Chen, Zonghai
AU - Amine, Khalil
N1 - Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].
PY - 2018/1/10
Y1 - 2018/1/10
N2 - Room-temperature sodium-ion batteries have attracted increased attention for energy storage due to the natural abundance of sodium. However, it remains a huge challenge to develop versatile electrode materials with favorable properties, which requires smart structure design and good mechanistic understanding. Herein, we reported a general and scalable approach to synthesize three-dimensional (3D) titania-graphene hybrid via electrostatic-interaction-induced self-assembly. Synchrotron X-ray probe, transmission electron microscopy, and computational modeling revealed that the strong interaction between titania and graphene through comparably strong van der Waals forces not only facilitates bulk Na+ intercalation but also enhances the interfacial sodium storage. As a result, the titania-graphene hybrid exhibits exceptional long-term cycle stability up to 5000 cycles, and ultrahigh rate capability up to 20 C for sodium storage. Furthermore, density function theory calculation indicated that the interfacial Li+, K+, Mg2+, and Al3+ storage can be enhanced as well. The proposed general strategy opens up new avenues to create versatile materials for advanced battery systems.
AB - Room-temperature sodium-ion batteries have attracted increased attention for energy storage due to the natural abundance of sodium. However, it remains a huge challenge to develop versatile electrode materials with favorable properties, which requires smart structure design and good mechanistic understanding. Herein, we reported a general and scalable approach to synthesize three-dimensional (3D) titania-graphene hybrid via electrostatic-interaction-induced self-assembly. Synchrotron X-ray probe, transmission electron microscopy, and computational modeling revealed that the strong interaction between titania and graphene through comparably strong van der Waals forces not only facilitates bulk Na+ intercalation but also enhances the interfacial sodium storage. As a result, the titania-graphene hybrid exhibits exceptional long-term cycle stability up to 5000 cycles, and ultrahigh rate capability up to 20 C for sodium storage. Furthermore, density function theory calculation indicated that the interfacial Li+, K+, Mg2+, and Al3+ storage can be enhanced as well. The proposed general strategy opens up new avenues to create versatile materials for advanced battery systems.
KW - anode
KW - density function theory
KW - interfacial
KW - Sodium-ion batteries
KW - titania-graphene
UR - http://www.scopus.com/inward/record.url?scp=85040313621&partnerID=8YFLogxK
UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-85040313621&origin=recordpage
U2 - 10.1021/acs.nanolett.7b04193
DO - 10.1021/acs.nanolett.7b04193
M3 - RGC 21 - Publication in refereed journal
C2 - 29240435
SN - 1530-6984
VL - 18
SP - 336
EP - 346
JO - Nano Letters
JF - Nano Letters
IS - 1
ER -
