Andreia Santos, Victor Hugo Souza de Abreu, Dante Luiz Da Ros Hollanda, Laís Ferreira Crispino Proença, Laura Bahiense.

Abstract: Transportation systems play a vital role in society, fulfilling essential social and economic functions. However, the current state of these systems cannot be considered sustainable. The transportation sector is carbon intensive, i.e. largely driven by fossil fuels. This results in an unsustainable impact both for the environment, with the aggravation of global warming and climate change, and for people’s quality of life, mainly due to the associated pollution. Therefore, there are a lot of political and technical interests in the potential role that renewable hydrogen can support in a transition to a low-carbon economy. Thus, this study aims to conduct a systematic review with a bibliometric approach on the application of renewable hydrogen in the land transportation sector, i.e., in the road and rail sectors, providing insights into the following questions concerning the application of renewable hydrogen in the land transportation sector: (i) What are the key environmental, economic, social, and technological advantages of utilizing renewable hydrogen in land transportation? (ii) What challenges and barriers are encountered when implementing renewable hydrogen in land transportation, and what potential solutions can be implemented to overcome them? (iii) What technologies are currently available for incorporating renewable hydrogen into land transportation? (iv) What are the examples of successful initiatives and projects applying renewable hydrogen in the transportation sector? (v) What are the future prospects for widespread adoption of renewable hydrogen vehicles in land transportation? and (vi) What government policies and economic incentives exist to encourage the use of renewable hydrogen in land transportation?

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