▎ 摘 要
Assembling graphene oxide (GO) sheets into continuous macroscopic materials such as GO fibers and membranes by extrusion method has shown promise for many applications like battery electrodes, sensors, and gas/water separation. However, controlling the microstructures and the mechanical strengths is still challenging in extruded continuous GO assembled materials (GOAMs). Here we report extruded continuous GO membranes and aerogels with flow rate controlled microstructural alignment. In extruded GO membranes, a high flow rate resulted in ultimate tensile strength (UTS) values as high as 198 MPa, 24% higher than previously reported UTS for extruded GO membranes. Extruded three-dimensional GO aerogels also have compression modulus superior to previously reported nonextruded aerogels. We attribute the improvement in UTS and compression modulus to flow-induced microstructural alignment. (C) 2022 Elsevier Ltd. All rights reserved.