论文简介如下：
固态储氢技术由于其安全性和经济性被认为是一种良好的储运氢策略，其中，氢化铝锂（LiAlH4）作为一种高容量的且相对便宜的储氢材料，受到了广泛关注。在这项研究中，使用固态氟化乙炔黑来反应失稳LiAlH4。结果发现，复合材料能够在60℃释放超过6 wt%的氢气，然而纯LiAlH4在该条件下不产生任何的氢气，说明该失稳方法有效的促进了LiAlH4低温高效制氢。进一步通过材料表征手段，发现氟化乙炔黑颗粒广泛且均匀的分布在LiAlH4颗粒表面，能够提供大量的氢气传输路径，并且有效的释放出反应中产生的热量。最后，通过Kissinger方程，计算出了复合材料放氢反应焓变，其远低于纯LiAlH4放氢焓变，说明掺杂氟化乙炔黑能够有效的改善LiAlH4放氢热力学性能。该工作为LiAlH4温和条件下的简单制氢工艺提供启发。
Lithium aluminum hydride (LiAlH4) has been acknowledged as a vital solid-state hydrogen storage material with its large dehydrogenation capacity of 10.6 wt%. However, pure LiAlH4 was hard to release hydrogen under 120 ℃, which strongly hindered its practical application. In this study, solid-state fluorinated acetylene black (FAB) was used as an additive to destabilize LiAlH4. According to the experimental results, FAB-doped LiAlH4 could achieve an ultrafast one-step hydrogen release over 6 wt% hydrogen release, which could be fully accomplished below 60 ℃, showing a great potential to be used as an easy hydrogen source. Through the microstructural study, it was found that FAB nano-sized particles adhered to the surface of LiAlH4. Then this structure increased the activation sites, and triggered the fast heat emission and hydrogen release of LiAlH4 during the dehydrogenation process. Moreover, the dehydrogenation reaction path was changed by the doping of FAB, which greatly lowering the dehydrogenation enthalpy change of LiAlH4. This study provides some inspiration for the utilization of LiAlH4 as an easy one-time hydrogen source under moderate environment.
全文下载：
https://doi.org/10.1016/j.fuel.2025.135486
