biostudies-literatureWang JNational Natural Science Foundation of P. R. China"Dengfeng Plan" High-level Hospital Construction Opening Project of Foshan Fourth People's HospitalNatural Science Foundation of Guangdong Provincee2203058https://www.ebi.ac.uk/biostudies/studies/S-EPMC9475504biostudies-literatureUnknown9(26)Liquid sodium-potassium (Na-K) alloy has the characteristics of high abundance, low redox potential, high capacity, and no dendrites, which has become an ideal alternative material for potassium/sodium metal anodes. However, the high surface tension of liquid sodium potassium alloy at room temperature makes it inconvenient in practical use. Here, the Na-K as reducing agent treats with hydrazone linkages of covalent organic frameworks (COFs) and obtain the carbon-oxygen radical COFs (COR-Tf-DHzDM-COFs). The preparation method solves the problems that the preparation process of the traditional Na-K composite anode is complex and has high cost. The structures of the COR-Tf-DHzDM-COFs are characterized by X-ray diffraction （XRD), fourier transform infrared (FT-IR), electron paramagnetic resonaAdvanced science (Weinheim, Baden-Wurttemberg, Germany)Radical Covalent Organic Frameworks Associated with Liquid Na-K toward Dendrite-Free Alkali Metal Anodes.PMC9475504220050522016A030310435FSSYKF-2020013Chen ZSi LChen MLu ZWang JfalseRadical Covalent Organic Frameworks Associated with Liquid Na-K toward Dendrite-Free Alkali Metal Anodes.Liquid sodium-potassium (Na-K) alloy has the characteristics of high abundance, low redox potential, high capacity, and no dendrites, which has become an ideal alternative material for potassium/sodium metal anodes. However, the high surface tension of liquid sodium potassium alloy at room temperature makes it inconvenient in practical use. Here, the Na-K as reducing agent treats with hydrazone linkages of covalent organic frameworks (COFs) and obtain the carbon-oxygen radical COFs (COR-Tf-DHzDM-COFs). The preparation method solves the problems that the preparation process of the traditional Na-K composite anode is complex and has high cost. The structures of the COR-Tf-DHzDM-COFs are characterized by X-ray diffraction （XRD), fourier transform infrared (FT-IR), electron paramagnetic resona2022-01-01T00:00:00Z2022 Sep2025-04-03T21:30:33.699Z2025-04-03T21:30:33.699ZS-EPMC94755043586140910.1002/advs.202203058