Abstract:
To study the research progress in the field of microbial electrosynthesis (MES), a bibliometric analysis with visualization tools (
e.g., CiteSpace and VOSviewer) was conducted on 729 MES-related publications retrieved from the Web of Science Core Collection (WOSCC) database between 2011 and 2025. The results indicate that the publication trend in the MES field from 2011 to 2025 presents a three-stage growth pattern: "Technological emergence phase—Accelerated development phase—Maturation and stabilization phase". China has made remarkable contributions in terms of total publication output. However, due to objective factors (
e.g., a later research onset and the timeliness of publications), China still lags behind Europe and the United States in several aspects, including the proportion of highly cited papers, average citations per article, author-level academic influence, and international collaboration network density Current research hotspots in MES focus on three key directions: gas fermentation and methanogenic valorization, value-added product synthesis and chain elongation mechanisms, and electron transfer pathways and functional microbial regulation. Future research will likely prioritize the in-depth elucidation of chain elongation processes and hydrogen evolution reactions. Overall, deep multidisciplinary integration and close researcher collaboration are key drivers for advancing MES. The ultimate goal is to establish MES as a core technology for large-scale CO
2 fixation and resource recovery.