All Metal Nitrides Solid-State Asymmetric Supercapacitors

Changrong Zhu; Peihua Yang; Dongliang Chao; Xingli Wang; Xiao Zhang; Shi Chen; Beng Kang Tay; Hui Huang; Hua Zhang; Wenjie Mai; Hong Jin Fan

doi:10.1002/adma.201501838

All Metal Nitrides Solid-State Asymmetric Supercapacitors

Adv Mater. 2015 Aug 19;27(31):4566-71. doi: 10.1002/adma.201501838. Epub 2015 Jul 8.

Authors

Changrong Zhu^{1

2}, Peihua Yang³, Dongliang Chao¹, Xingli Wang⁴, Xiao Zhang⁵, Shi Chen¹, Beng Kang Tay⁴, Hui Huang², Hua Zhang⁵, Wenjie Mai³, Hong Jin Fan¹

Affiliations

¹ School of Physical and Mathematical Sciences, Nanyang Technological University, 637371, Singapore, Singapore.
² Singapore Institute of Manufacturing Technology, 71 Nanyang Drive, 638075, Singapore, Singapore.
³ Department of Physics and Siyuan Laboratory, Jinan University, Guangzhou, 510632, P. R. China.
⁴ School of Electrical and Electronic Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore, Singapore.
⁵ School of Materials Science and Engineering, Nanyang Technological University, 639798, Singapore.

PMID: 26153405
DOI: 10.1002/adma.201501838

Abstract

Two metal nitrides, TiN porous layers and Fe2 N nanoparticles, are grown uniformly with the assistance of atomic layer deposition on vertically aligned graphene nanosheets and used as the cathode and anode for solid-state supercapacitors, respectively. Full cells are constructed and show good flexibility, high-rate capability, and 98% capacitance retention after 20,000 cycles.

Keywords: flexible energy storage; graphene nanosheets; metal nitrides; solid-state supercapacitors; vertical graphene.