Tags

Type your tag names separated by a space and hit enter

Ultrathin Titanate Nanosheets/Graphene Films Derived from Confined Transformation for Excellent Na/K Ion Storage.
Angew Chem Int Ed Engl 2018; 57(28):8540-8544AC

Abstract

Confined transformation of assembled two-dimensional MXene (titanium carbide) and reduced graphene oxide (rGO) nanosheets was employed to prepare the free-standing films of the integrated ultrathin sodium titanate (NTO)/potassium titanate (KTO) nanosheets sandwiched between graphene layers. The ultrathin Ti-based nanosheets reduce the diffusion distance while rGO layers enhance conductivity. Incorporation of graphene into the titanate films produced efficient binder-free anodes for ion storage. The resulting flexible NTO/rGO and KTO/rGO electrodes exhibited excellent rate performances and long cycling stability characterized by reversible capacities of 72 mA h g-1 at 5 A g-1 after 10000 cycles and 75 mA h g-1 after 700 cycles at 2 A g-1 for sodium and potassium ion batteries, respectively. These results demonstrate the superiority of the unique sandwich-type electrodes.

Authors+Show Affiliations

Key Lab of Heat Transfer Enhancement and Energy Conservation of Ministry of Education, School of Chemistry & Chemical Engineering, South China University of Technology, Guangzhou, 510640, P. R. China.School of Chemical Engineering, The University of Adelaide, Adelaide, SA 5005, Australia.Analytical and Testing Centre, South China University of Technology, Guangzhou, 510640, P. R. China.Department of Chemistry and Biochemistry, Kent State University, Kent, OH, 44242, USA.Key Lab of Heat Transfer Enhancement and Energy Conservation of Ministry of Education, School of Chemistry & Chemical Engineering, South China University of Technology, Guangzhou, 510640, P. R. China.School of Chemical Engineering, The University of Adelaide, Adelaide, SA 5005, Australia. School of Materials Science and Engineering, Tianjin University, Tianjin, 300072, P. R. China.

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

29722102

Citation

Zeng, Cheng, et al. "Ultrathin Titanate Nanosheets/Graphene Films Derived From Confined Transformation for Excellent Na/K Ion Storage." Angewandte Chemie (International Ed. in English), vol. 57, no. 28, 2018, pp. 8540-8544.
Zeng C, Xie F, Yang X, et al. Ultrathin Titanate Nanosheets/Graphene Films Derived from Confined Transformation for Excellent Na/K Ion Storage. Angew Chem Int Ed Engl. 2018;57(28):8540-8544.
Zeng, C., Xie, F., Yang, X., Jaroniec, M., Zhang, L., & Qiao, S. Z. (2018). Ultrathin Titanate Nanosheets/Graphene Films Derived from Confined Transformation for Excellent Na/K Ion Storage. Angewandte Chemie (International Ed. in English), 57(28), pp. 8540-8544. doi:10.1002/anie.201803511.
Zeng C, et al. Ultrathin Titanate Nanosheets/Graphene Films Derived From Confined Transformation for Excellent Na/K Ion Storage. Angew Chem Int Ed Engl. 2018 07 9;57(28):8540-8544. PubMed PMID: 29722102.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Ultrathin Titanate Nanosheets/Graphene Films Derived from Confined Transformation for Excellent Na/K Ion Storage. AU - Zeng,Cheng, AU - Xie,Fangxi, AU - Yang,Xianfeng, AU - Jaroniec,Mietek, AU - Zhang,Lei, AU - Qiao,Shi-Zhang, Y1 - 2018/06/10/ PY - 2018/03/23/received PY - 2018/5/4/pubmed PY - 2018/5/4/medline PY - 2018/5/4/entrez KW - anode materials KW - sandwich structures KW - sodium titanate KW - sodium-ion batteries KW - ultrathin nanosheets SP - 8540 EP - 8544 JF - Angewandte Chemie (International ed. in English) JO - Angew. Chem. Int. Ed. Engl. VL - 57 IS - 28 N2 - Confined transformation of assembled two-dimensional MXene (titanium carbide) and reduced graphene oxide (rGO) nanosheets was employed to prepare the free-standing films of the integrated ultrathin sodium titanate (NTO)/potassium titanate (KTO) nanosheets sandwiched between graphene layers. The ultrathin Ti-based nanosheets reduce the diffusion distance while rGO layers enhance conductivity. Incorporation of graphene into the titanate films produced efficient binder-free anodes for ion storage. The resulting flexible NTO/rGO and KTO/rGO electrodes exhibited excellent rate performances and long cycling stability characterized by reversible capacities of 72 mA h g-1 at 5 A g-1 after 10000 cycles and 75 mA h g-1 after 700 cycles at 2 A g-1 for sodium and potassium ion batteries, respectively. These results demonstrate the superiority of the unique sandwich-type electrodes. SN - 1521-3773 UR - https://www.unboundmedicine.com/medline/citation/29722102/Ultrathin_Titanate_Nanosheets/Graphene_Films_Derived_from_Confined_Transformation_for_Excellent_Na/K_Ion_Storage_ L2 - https://doi.org/10.1002/anie.201803511 DB - PRIME DP - Unbound Medicine ER -