Development and Demonstration of Air Stable rGO-EC@AB5 Type Hydrogenated Intermetallic Hybrid for Hydrogen Fuelled Devices
Development and Demonstration of Air Stable rGO-EC@AB5 Type Hydrogenated Intermetallic Hybrid for Hydrogen Fuelled Devices
复制标题
DOI：
10.1002/adsu.201700087
复制
发表时间：
2017-11-01
影响因子：
7.1
通讯作者：
Srivastava, Onkar Nath
中科院分区：
文献类型：
--
作者：
Bhatnagar, Ashish;Gupta, Bipin Kumar;Srivastava, Onkar Nath
氢是一种有前途的替代能源载体，但在适当的地点使用氢需要储存，这是一个至关重要的方面。以金属氧化物的形式储氢（HS）代表了一种有吸引力的可能性，并且正在世界范围内进行研究。La（Ni0.95Fe0.05）（5）（LNF）作为HS介质由于其合适的热力学特性而受到了广泛的关注。然而，由于氢化LNF（LNFH）在暴露于空气时的燃烧，其作为有效储存材料的用途受到阻碍。原始LNFH在暴露于大气时迅速着火。在这里，通过将LNF封装在还原的氧化石墨烯-乙基纤维素内，证明了用于氢化空气稳定的混合材料的设计的突破性策略。这种新型混合材料在暴露于空气时不会点燃。这种混合材料可能是燃料电池/内燃机车辆空气稳定和安全存储的最终选择。此外，这种储氢材料的有效性被证明用于燃料电池。
Hydrogen is a promising alternative energy vector, but its use at an appropriate site requires storage, which is a crucial aspect. Hydrogen storage (HS) in the form of metal hydrides represents an attractive possibility, and is being investigated worldwide. La(Ni0.95Fe0.05)(5) (LNF) has achieved significant attention as a HS media due to its suitable thermodynamics. However, its use as an effective storage material is hindered due to burning of hydro-genated LNF (LNFH) on exposure to air. The pristine LNFH catches fire rapidly on exposure to atmosphere. Here, a breakthrough strategy is demonstrated for design of hydrogenated air-stabilized hybrid material by encapsulating LNF inside reduced graphene oxide-ethyl cellulose. This novel hybrid material does not ignite upon exposure to air. This proposed hybrid material could be the ultimate choice for air-stable and safe storage for fuel cell/internal combustion engine-based vehicles. Further, the effectiveness of this hydrogen storage material is demonstrated for fuel cells.