C60(OH)12 and Its Nanocomposite for High-Performance Lithium Storage

Zhengang Li; Shih-Hao Wang; Jieshun Cui; Yu Wang; Junxian Zhang; Ping Xu; Ming Zhou; Leeyih Wang; Hsing-Lin Wang

doi:10.1021/acsnano.9b06791

C₆₀(OH)₁₂ and Its Nanocomposite for High-Performance Lithium Storage

ACS Nano. 2020 Feb 25;14(2):1600-1608. doi: 10.1021/acsnano.9b06791. Epub 2020 Jan 27.

Authors

Zhengang Li¹, Shih-Hao Wang^{2

3}, Jieshun Cui¹, Yu Wang¹, Junxian Zhang¹, Ping Xu⁴, Ming Zhou⁵, Leeyih Wang^{2

3}, Hsing-Lin Wang¹

Affiliations

¹ Department of Materials Science and Engineering , Southern University of Science and Technology , Shenzhen , Guangdong 518055 , China.
² Institute of Polymer Science and Engineering , National Taiwan University , 10617 Taipei , Taiwan.
³ Center for Condensed Matter Sciences , National Taiwan University , 10617 Taipei , Taiwan.
⁴ School of Chemistry and Chemical Engineering , Harbin Institute of Technology , Harbin 150001 , China.
⁵ Department of Chemistry , Northeast Normal University , Changchun , Jilin 130024 , China.

PMID: 31961655
DOI: 10.1021/acsnano.9b06791

Abstract

Organic carbon materials, such as graphene and nanotubes, with a high specific capacity show promise in improving the energy density for lithium ion batteries (LiBs). Here, we report on the synthesis and characterization of C₆₀(OH)₁₂ and the C₆₀(OH)₁₂/graphene oxide (GO) composite and demonstrate their use as anode materials in LiBs. We find that the C₆₀(OH)₁₂/GO composite forms due to the chemical reactions between the carboxyl and epoxy groups of GO and the hydroxyl of C₆₀(OH)₁₂ nanoparticles and that C₆₀(OH)₁₂ uniformly grows on the surface of GO nanosheets. Using a suite of spectroscopy probes, we unequivocally show the mixing between C₆₀(OH)₁₂ and GO at the molecular level, which leads to superior battery performances. This composite has a reversible capacity of 1596 mAh g^-1 at 0.2 A g^-1, higher than the capacities of C₆₀(OH)₁₂ and GO. This composite has a superior cycling stability and excellent rate performance, making it a promising organic anode material for high-performance LiBs.

Keywords: C60(OH)12; anode; fullerenes; graphene oxides; lithium ion batteries.