All Metal Nitrides Solid-State Asymmetric Supercapacitors.

Zhu, Changrong; Yang, Peihua; Chao, Dongliang; Wang, Xingli; Zhang, Xiao; Chen, Shi; Tay, Beng Kang; Huang, Hui et al. · Adv Mater · 2015

basic_science · Level V

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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.