Alreshidi Maha Awjan, Yadav Krishna Kumar, Shoba G, Gacem Amel, Padmanabhan S, Ganesan S, Guganathan L, Bhutto Javed Khan, Saravanan P, Fallatah Ahmed M, Abo El-Khair Muhammad A, Almalawi Jawaher Faisal, Alam Mir Waqas, Kavitha C, Tamizhdurai P, Subramani A
Department of Chemistry, College of Science, University of Ha'il Ha'il 81441 Saudi Arabia.
Department of Environmental Science, Parul Institute of Applied Sciences, Parul University Vadodara Gujarat 391760 India.
RSC Adv. 2025 Jul 10;15(29):23874-23909. doi: 10.1039/d5ra02918j. eCollection 2025 Jul 4.
This review provides a comprehensive and interdisciplinary assessment of the expanding role of hydrogen in enabling sustainable energy transitions within the transportation sector. Distinct from previous reviews, this study contributes original insights into advanced hydrogen storage technologies, integration across energy systems, and evolving policy frameworks. The review investigates the application of hydrogen in internal combustion engines, gas turbine propulsion, and fuel cell electric vehicles, with emphasis on recent progress in physical and chemical storage methods such as compressed gas, cryogenic liquid, metal hydrides, and sorbent based systems. It highlights innovations in material science and combined storage strategies that aim to improve safety, increase energy density, and reduce operational costs. Furthermore, the review explores the integration of hydrogen with renewable electricity and industrial systems, identifying its role in smart grid support, energy balancing, and flexible energy storage. The policy analysis highlights strategic national and international efforts that promote hydrogen deployment, including financial incentives, infrastructure development, and regulatory standards. The review also examines lifecycle assessment findings, comparing environmental impacts across hydrogen production routes and end use applications. Special attention is given to the role of alternative hydrogen carriers such as ammonia and liquid organic hydrogen compounds, which offer promising solutions for long distance transport and international trade. Finally, the study identifies current challenges related to technology standardization, safety regulations, and global market alignment, while outlining key research and innovation priorities essential to realizing a sustainable and inclusive hydrogen future for transportation.
本综述对氢在推动交通运输领域可持续能源转型中不断扩大的作用进行了全面的跨学科评估。与以往的综述不同，本研究对先进的氢存储技术、能源系统整合以及不断演变的政策框架提供了独到见解。该综述研究了氢在内燃机、燃气轮机推进和燃料电池电动汽车中的应用，重点关注物理和化学存储方法（如压缩气体、低温液体、金属氢化物和基于吸附剂的系统）的最新进展。它突出了材料科学和组合存储策略方面的创新，旨在提高安全性、增加能量密度并降低运营成本。此外，该综述探讨了氢与可再生电力和工业系统的整合，确定了其在智能电网支持、能量平衡和灵活储能中的作用。政策分析突出了促进氢部署的国家和国际战略努力，包括财政激励、基础设施发展和监管标准。该综述还审查了生命周期评估结果，比较了不同氢生产路线和终端使用应用的环境影响。特别关注了氨和液态有机氢化合物等替代氢载体的作用，它们为长途运输和国际贸易提供了有前景的解决方案。最后，该研究确定了与技术标准化、安全法规和全球市场协调相关的当前挑战，同时概述了实现交通运输领域可持续和包容性氢未来至关重要的关键研究和创新重点。
