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Size-Dependent Kinetic Enhancement in Hydrogen Absorption and Desorption of the Li−Mg−N−H System
Abstract
High operating temperature and slow kinetics retard the practical applications of the Li-Mg-N-H system for hydrogen storage. To alleviate these problems, a first attempt was carried out by synthesizing Li(2)MgN(2)H(2) through sintering a mixture of Mg(NH(2))(2)-2LiNH(2) and investigating its size-dependent hydrogen storage performance. A dramatically enhanced kinetics for hydrogen absorption/desorption was achieved with a reduction in the particle size. For the dehydrogenation reaction, a three-dimensional diffusion-controlled kinetic mechanism was identified for the first time by analyzing isothermal hydrogen desorption curves with a linear plot method. The experimental improvement and mechanistic understanding on the dehydrogenation kinetics of the Li-Mg-N-H system shed light on how to further decrease the operating temperature and enhance the hydrogen absorption/desorption rate of the amide/hydride combined materials.
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Cited by
Yu, X., Tang, Z., Sun, D., Ouyang, L., & Zhu, M. (2017) · Progress in Materials Science · doi:10.1016/j.pmatsci.2017.03.001 · Cited by 716
Hydrogen storage: beyond conventional methods
Dalebrook, A. F., Gan, W., Grasemann, M., Moret, S., & Laurenczy, G. (2013) · Chemical Communications · doi:10.1039/c3cc43836h · Cited by 503
Ultrathinning Nickel Sulfide with Modulated Electron Density for Efficient Water Splitting
Fei, B., Chen, Z., Liu, J., Xu, H., Yan, X., Qing, H., Chen, M., & Wu, R. (2020) · Advanced Energy Materials · doi:10.1002/aenm.202001963 · Cited by 372
Xu, H., Fei, B., Cai, G., Ha, Y., Liu, J., Jia, H., Zhang, J., Liu, M., & Wu, R. (2020) · Advanced Energy Materials · doi:10.1002/aenm.201902714 · Cited by 332
Metadata
- Authors
- Liu, Y., Zhong, K., Luo, K., Gao, M., Pan, H., & Wang, Q.
- Venue
- Journal of the American Chemical Society
- Publisher
- American Chemical Society (ACS)
- Published
- 2009-01-20
- Volume
- 131
- Issue
- 5
- Pages
- 1862-1870
- ISSN
- 0002-7863 (ISSN-L)
- 1520-5126
- OpenAlex
- W2053856824
- Cited by
- 280
- References
- 0
- FWCI
- 6.54
- Type
- journal article
- Language
- en
- Open access
- closed
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- Liu, Y., Zhong, K., Luo, K., Gao, M., Pan, H., & Wang, Q. (2009). Size-Dependent Kinetic Enhancement in Hydrogen Absorption and Desorption of the Li−Mg−N−H System. Journal of the American Chemical Society. https://doi.org/10.1021/ja806565t
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