Research Article: Oxygen‐free Layer‐by‐Layer Assembly of Lithiated Composites on Graphene for Advanced Hydrogen Storage

Date Published: April 25, 2017

Publisher: John Wiley and Sons Inc.

Author(s): Guanglin Xia, Yingbin Tan, Xiaowei Chen, Fang Fang, Dalin Sun, Xingguo Li, Zaiping Guo, Xuebin Yu.

http://doi.org/10.1002/advs.201600257

Abstract

A facile hydrogenation‐induced self‐assembly strategy to synthesize lithium hydride (LiH) nanosheets with a thickness of 2 nm that are uniformly distributed on graphene is reported and designed. Taking advantage of LiH nanosheets with high reactivity and a homogeneous distribution on graphene support as a nanoreactor, the confined chemical synthesis of oxygen‐free lithiated composites is effectively and efficiently realized.

Partial Text

Synthesis of LiH@G: Graphene‐supported LiH nanosheets (LiH@G) were fabricated via the hydrogenation of n‐butyllithium (n‐BuLi) in cyclohexane. In a typical synthesis, 2 mL n‐BuLi solution (2 m in cyclohexane) and 0.03 g graphene were dispersed in 40 mL cyclohexane in a pressure reactor vessel, and then the reaction was conducted under 50 atm H2 at 100 °C for 24 h with the aid of ultrasonication and stirring. After consecutive washing and centrifugation, the resulting composite was dried at room temperature under dynamic vacuum on a Schlenk line, denoted as LiH@G.

 

Source:

http://doi.org/10.1002/advs.201600257

 

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