REVIEW OF HYDROGEN LEAKAGE AND DIFFUSION CHARACTERISTICS BASED ON BIBLIOMETRICS

Shi Baojun; Li Hongdong; Lai Guangjin; Hu Ning

doi:10.19912/j.0254-0096.tynxb.2024-2349

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Acta Energiae Solaris Sinica ›› 2026, Vol. 47 ›› Issue (5) : 560-578. DOI: 10.19912/j.0254-0096.tynxb.2024-2349

REVIEW OF HYDROGEN LEAKAGE AND DIFFUSION CHARACTERISTICS BASED ON BIBLIOMETRICS

Shi Baojun, Li Hongdong, Lai Guangjin, Hu Ning

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Abstract

Hydrogen energy is recognized as a sustainable, renewable, green, and clean energy source, and its efficient utilization and widespread adoption are considered crucial for achieving “the goals of carbon peaking and carbon neutrality”. However, owing to the unique physical and chemical properties of hydrogen, it is highly susceptible to leakage during production, storage, transportation, and utilization, posing significant risks of fire and explosion. As a result, hydrogen safety is regarded as a critical bottleneck throughout the life cycle of hydrogen energy, with hydrogen leakage and diffusion being identified as key factors influencing overall safety. This study employs bibliometric analysis to systematically explore the characteristics of hydrogen leakage and diffusion and identify research hotspots and emerging trends through a comprehensive examination of the temporal distribution, geographic distribution, author contributions, co-citation networks, and keyword co-occurrence in the existing literature. Furthermore, from the perspectives of experimental research, numerical simulation, and risk assessment, an in-depth review is provided on advancements in understanding hydrogen leakage and diffusion behaviors. Key topics include the diffusion dynamics and spontaneous ignition behavior of high-pressure hydrogen leaks, dispersion characteristics of hydrogen-enriched natural gas leaks, and diffusion patterns and risk assessment of hydrogen refueling station leaks. Additionally, the current challenges, limitations, and gaps in the existing research are summarized. Finally, potential future research directions are proposed to support scientific progress, industrial innovation, and risk-prevention strategies in the field of hydrogen energy.

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hydrogen / safety / leakage / diffusion / bibliometrics / explosions

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Shi Baojun, Li Hongdong, Lai Guangjin, Hu Ning. REVIEW OF HYDROGEN LEAKAGE AND DIFFUSION CHARACTERISTICS BASED ON BIBLIOMETRICS[J]. Acta Energiae Solaris Sinica. 2026, 47(5): 560-578 https://doi.org/10.19912/j.0254-0096.tynxb.2024-2349

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