Recently, nanotechnology, 2D ferromagnetic materials, and electrochemistry are so popular. This is because 1D metal-oxide nanomaterials and 2D ferromagnetic materials possess different properties from bulks when they have less sizes and dimensionality but larger surface areas. Especially the 2D ferromagnetic materials can be exfoliated into few layers or a monolayer, which give special magnetic characters for spintronics. Our laboratory focuses on synthesis of 1D metal-oxide nanomaterials and 2D ferromagnetic materials and fabrication of sustainable nanodevices and spintronics. In fact, we have got plenty of important results which had been also published in more than a hundred high-impact journals, and carry on submitting them to prestigious journals. The one-dimensional (1D) metal-oxide nanostructures are easily used in sustainable nanodevices, such as supercapacitors and electrochromic nanodevices, so in our laboratory the intern students have to synthesize and characterize various 1D metal-oxide nanostructures, and then fabricate and test varying energy nanodevices. The 2D ferromagnetic materials are popular and promising for future spintronics. To obtain significant results and understand physical mechanisms, new technologies are always created and developed in our laboratory from time to time, and are helpful for student to establish their logic and mind.