Bibliometric green and hidrogen

Green hydrogen, produced via electrolysis using renewable energy sources, is gaining prominence as a sustainable alternative to conventional fossil fuels, playing a vital role in the global transition towards a low-carbon economy. This study conducts a bibliometric analysis of green hydrogen research indexed in Scopus to map the evolution, trends, and key contributions in this field. By examining publication volume, citation impact, and collaboration networks, the analysis identifies leading countries, institutions, authors, and journals that are driving innovation in green hydrogen technologies. The findings highlight the rapid growth in green hydrogen research, fueled by increasing global efforts to combat climate change and reduce greenhouse gas emissions. Major research themes include advancements in electrolysis technologies, hydrogen storage and transportation, and applications across industrial, energy, and transportation sectors. Despite the progress, challenges such as high production costs, storage inefficiencies, and policy barriers remain prominent. This bibliometric review not only provides a comprehensive overview of the current research landscape but also identifies critical gaps and future research directions essential for advancing green hydrogen technologies. The results underscore the importance of interdisciplinary collaboration and strategic policy support in accelerating the adoption of green hydrogen as a cornerstone of the sustainable energy future.