3D Nanoporous Nitrogen-Doped Graphene with Encapsulated RuO2 Nanoparticles for Li-O2 Batteries

Xianwei Guo; Pan Liu; Jiuhui Han; Yoshikazu Ito; Akihiko Hirata; Takeshi Fujita; Mingwei Chen

doi:10.1002/adma.201503182

3D Nanoporous Nitrogen-Doped Graphene with Encapsulated RuO2 Nanoparticles for Li-O2 Batteries

Adv Mater. 2015 Oct 28;27(40):6137-43. doi: 10.1002/adma.201503182. Epub 2015 Sep 1.

Authors

Xianwei Guo^{1

2}, Pan Liu^{1

2}, Jiuhui Han¹, Yoshikazu Ito^{1

2}, Akihiko Hirata^{1

2}, Takeshi Fujita¹, Mingwei Chen^{1

2

3}

Affiliations

¹ WPI Advanced Institute for Materials Research, Tohoku University, Sendai, 980-8577, Japan.
² CREST, Japan Science and Technology Agency (JST), Saitama, 332-0012, Japan.
³ State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200030, P. R. China.

PMID: 26331613
DOI: 10.1002/adma.201503182

Abstract

Freestanding nanoporous N-doped graphene with encapsulated RuO2 nanoparticles is developed as a cathode for rechargeable Li-O2 batteries. The stabilized metal oxide catalyst reduces charge overpotentials enabling high-efficiency rechargeable Li-O2 batteries with a long cycling lifetime. This has important implications for the development of highly stable and catalytically active graphene-based cathodes for rechargeable Li-O2 batteries.

Keywords: Li-O2 batteries; encapsulated nanoparticles, ruthenium oxides; energy storage; nanoporous graphene.