Recent advances in graphene liquid cells for in situ transmission electron microscopy (TEM)
have opened many opportunities for the study of materials transformations and chemical
reactions in liquids with high spatial resolution. However, the behavior of thin liquids
encapsulated in a graphene liquid cell has not been fully understood. Here, we report real
time TEM imaging of the nanoscale dynamic behavior of liquids in graphene
nanocapillaries. Our observations reveal that the interfaces between liquid and gas bubble …