“…Tubular nanomaterials have received significant study attention in recent years due to their hollow shape, which provides a number of unique features that should be beneficial in a variety of applications such as information storage medium 14 , catalysts 15 , electronics 16 , gas sensors 17 , and medicine 18 . Therefore, many methods have been reported for preparing tubular magnetic nanomaterials, including template-assisted electrodeposition 19 , co-precipitation 20 , sol-gel 21 and solvothermal 22 methods. Nonetheless, these methods are frequently hampered by time-consuming procedures and special situations.…”