Jahanshahi Akram, Lopes Myriam, Brandão Miguel, De Castro Eduardo Anselmo
Department of Environment and Planning, Center for Environmental and Marine Studies, CESAM, University of Aveiro, 3810-193 Aveiro, Portugal.
Research Unit on Governance, Competitiveness and Public Policies (GOVCOPP), University of Aveiro, 3810-193 Aveiro, Portugal.
Heliyon. 2023 Sep 9;9(9):e20000. doi: 10.1016/j.heliyon.2023.e20000. eCollection 2023 Sep.
Bioenergy has the potential to substitute the current demand for fossil fuels in various applications. Recovering energy from bio-based materials due to environmental considerations has been adopted as a policy objective by governments and international organizations, which led to both vast financial investment and scientific research, especially in the last two decades. So far, various feedstocks and technologies have been scrutinised by the research community, although not all of them are commercially adopted due to sustainability considerations. This study employs scientometric analysis to survey the progress of scientific development in the field of bioenergy from 1966 to 2022, using ten parameters including publication year, type of document, categories, countries, affiliations, document citations, co-authorship, author citation networks, journal citation networks, and keywords. A total of 51,905 scientific documents were collected from the Web of Science, involving more than 96,000 authors from 162 countries. The dispersion of studies followed an ascending distribution with a sharp increase in the second half of the 2000s. The evolution of keywords in terms of burst strength confirmed the advancements of technologies from primary first-generation to advanced fourth-generation bioenergies. Based on the evolution of science in this area, it is concluded that integrated sustainability assessment studies, covering technical, economical, environmental, and social aspects, are needed to bridge the gap between abundant theoretical endeavours and limited commercial use of this energy source.
生物能源有潜力在各种应用中替代当前对化石燃料的需求。出于环境考虑，从生物基材料中回收能源已被政府和国际组织作为一项政策目标采纳，这导致了大量的资金投入和科学研究，尤其是在过去二十年。到目前为止，研究界已经对各种原料和技术进行了审查，不过由于可持续性考虑，并非所有这些原料和技术都已商业化应用。本研究采用科学计量分析方法，利用包括出版年份、文献类型、类别、国家、机构、文献引用、共同作者、作者引用网络、期刊引用网络和关键词在内的十个参数，对1966年至2022年生物能源领域的科学发展进展进行调查。从科学网收集了总共51,905篇科学文献，涉及来自162个国家的96,000多名作者。研究的分散情况呈上升分布，在21世纪后半叶急剧增加。关键词爆发强度方面的演变证实了从第一代初级生物能源到第四代先进生物能源的技术进步。基于该领域科学的发展，得出的结论是，需要开展涵盖技术、经济、环境和社会方面的综合可持续性评估研究，以弥合这种能源在大量理论研究与有限商业应用之间的差距。
