AUTHOR=Peng Tianji , Zhang Yaoli , Zhang Han , Xiao Jianjun , Wan Tao TITLE=Editorial: Technological Frontiers in Gen4 nuclear energy systems and small reactors JOURNAL=Frontiers in Energy Research VOLUME=11 YEAR=2024 URL=https://www.frontiersin.org/journals/energy-research/articles/10.3389/fenrg.2023.1354629 DOI=10.3389/fenrg.2023.1354629 ISSN=2296-598X