Nature CommunicationsMembrane-free CO2 electrolyzer design for economically efficient formic acid electro-synthesisXiaotong LiKainan GaoMingliang QuNanhui LiXiangzhou LvXiuju WuQingyang LinHao Bin Wu2025-10-17Full textDOI https://doi.org/10.1038/s41467-025-64306-0