biostudies-literatureChen WNational Natural Science Foundation of China (National Science Foundation of China)10513https://www.ebi.ac.uk/biostudies/studies/S-EPMC12657966biostudies-literatureUnknown16(1)High-strength, high-conductivity graphite-based carbon materials (GCMs) are widely explored for diverse applications. Designing and regulating the graphitic phase microstructure is essential for simultaneously enhancing mechanical and electrical properties, particularly mechanical strength. Here, we propose a two-step strategy to synthesize graphene-amorphous carbon (GAC) with interwoven graphene networks. By leveraging the different graphitization tendencies between polyacrylamide and glucose, we obtained GAC with a microscale structure in which few-layers graphene and amorphous carbon are uniformly interwoven. Therefore, the GAC exhibits exceptional compressive and flexural strengths of 303 MPa and 203 MPa, respectively, greatly exceeding previously reported performance benchmarks. MicroNature communicationsGraphene-amorphous carbon with interwoven networks for enhanced strength.PMC12657966No. 52032003Ding HLin QZhang DDu SLu XSun BZhang LCheng YDong SZhang PWang LZou YSheng JChen WWang ZWu YRen QTan MFei WLan YChen DFang YYang XZhang WLi WZhang XLiu BHan JfalseGraphene-amorphous carbon with interwoven networks for enhanced strength.High-strength, high-conductivity graphite-based carbon materials (GCMs) are widely explored for diverse applications. Designing and regulating the graphitic phase microstructure is essential for simultaneously enhancing mechanical and electrical properties, particularly mechanical strength. Here, we propose a two-step strategy to synthesize graphene-amorphous carbon (GAC) with interwoven graphene networks. By leveraging the different graphitization tendencies between polyacrylamide and glucose, we obtained GAC with a microscale structure in which few-layers graphene and amorphous carbon are uniformly interwoven. Therefore, the GAC exhibits exceptional compressive and flexural strengths of 303 MPa and 203 MPa, respectively, greatly exceeding previously reported performance benchmarks. Micro2025-01-01T00:00:00Z2025 Nov2026-06-05T20:43:10.327Z2026-05-21T03:13:03.68ZS-EPMC126579664129843610.1038/s41467-025-65877-8