Los Alamos National Laboratory, Los Alamos, NM 87545, USA.
HRL Laboratories, LLC., Malibu, CA 90265, USA.
Molecules. 2021 Mar 19;26(6):1722. doi: 10.3390/molecules26061722.
We present the research findings of the DOE-funded Hydrogen Storage Engineering Center of Excellence (HSECoE) related to liquid-phase and slurry-phase chemical hydrogen storage media and their potential as future hydrogen storage media for automotive applications. Chemical hydrogen storage media other than neat liquid compositions will prove difficult to meet the DOE system level targets. Solid- and slurry-phase chemical hydrogen storage media requiring off-board regeneration are impractical and highly unlikely to be implemented for automotive applications because of the formidable task of developing solid- or slurry-phase transport systems that are commercially reliable and economical throughout the entire life cycle of the fuel. Additionally, the regeneration cost and efficiency of chemical hydrogen storage media is currently the single most prohibitive barrier to implementing chemical hydrogen storage media. Ideally, neat liquid-phase chemical hydrogen storage media with net-usable gravimetric hydrogen capacities of greater than 7.8 wt% are projected to meet the 2017 DOE system level gravimetric and volumetric targets. The research presented herein is a collection of research findings that do not in and of themselves warrant a dedicated manuscript. However, the collection of results do, in fact, highlight the engineering challenges and short-comings in scaling up and demonstrating fluid-phase ammonia borane and alane compositions that all future materials researchers working in hydrogen storage should be aware of.
我们展示了美国能源部资助的氢气储存卓越工程中心（HSECoE）的研究成果，这些成果涉及液相和浆相化学氢储存介质及其作为未来汽车应用中储氢介质的潜力。除了纯液态成分之外，其他化学氢储存介质很难满足美国能源部的系统级目标。需要离线再生的固态和浆态化学氢储存介质在汽车应用中不切实际，也不太可能实现，因为开发商业上可靠且在燃料整个生命周期内经济的固态或浆态传输系统是一项艰巨的任务。此外，化学氢储存介质的再生成本和效率是目前实施化学氢储存介质的最大障碍。理想情况下，净有用重量比氢容量大于 7.8wt%的纯液态化学氢储存介质预计将满足 2017 年美国能源部系统级重量和体积目标。本文所介绍的研究是一系列研究结果的集合，本身并不需要专门的论文。然而，这些结果确实突出了在扩大和展示流体相氨硼烷和铝烷组成方面的工程挑战和不足之处，所有从事储氢研究的未来材料研究人员都应该意识到这一点。
