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https://hdl.handle.net/2440/134072
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Type: | Journal article |
Title: | Graphene-wrapped reversible reaction for advanced hydrogen storage |
Author: | Xia, G. Tan, Y. Wu, F. Fang, F. Sun, D. Guo, Z. Huang, Z. Yu, X. |
Citation: | Nano Energy, 2016; 26:488-495 |
Publisher: | Elsevier |
Issue Date: | 2016 |
ISSN: | 2211-2855 2211-3282 |
Statement of Responsibility: | Guanglin Xia, YingbinTan, Feilong Wu, Fang Fang, Dalin Sun, Zaiping Guo, Zhenguo Huang, Xuebin Yu |
Abstract: | Here, we report the fabrication of a graphene-wrapped nanostructured reactive hydride composite, i.e., 2LiBH₄-MgH₂, made by adopting graphene-supported MgH₂ nanoparticles (NPs) as the nanoreactor and heterogeneous nucleation sites. The porous structure, uniform distribution of MgH₂ NPs, and the steric confinement by flexible graphene induced a homogeneous distribution of 2LiBH₄-MgH₂ nanocomposite on graphene with extremely high loading capacity (80 wt%) and energy density. The well-defined structural features, including even distribution, uniform particle size, excellent thermal stability, and robust architecture endow this composite with significant improvements in its hydrogen storage performance. For instance, at a temperature as low as 350 °C, a reversible storage capacity of up to 8.9 wt% H₂, without degradation after 25 complete cycles, was achieved for the 2LiBH₄-MgH₂ anchored on graphene. The design of this three-dimensional architecture can offer a new concept for obtaining high performance materials in the energy storage field. |
Keywords: | Hydrogen storage; graphene; nanoparticles; borohydrides; magnesium hydrides |
Rights: | © 2016 Elsevier Ltd. All rights reserved. |
DOI: | 10.1016/j.nanoen.2016.06.016 |
Grant ID: | http://purl.org/au-research/grants/arc/DP140102858 |
Published version: | http://dx.doi.org/10.1016/j.nanoen.2016.06.016 |
Appears in Collections: | Chemical Engineering publications |
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