(1 1 1)-Oriented crystalline plane MnO loaded by biomass carbon separator to facilitate sulfur redox kinetics in lithium–sulfur batteries

Study on Electrochemical Performance of MnO@rGO/Carbon Fabric-Based Wearable Supercapacitors

“…The Mn 2p spectrum of MnO x @rGO (0.8:1) /C ( Figure 2 c) shows that the peaks of Mn 2p 3/2 and Mn 2p 1/2 are located at 642 eV and 653.9 eV, respectively, with an energy separation of 11.9 eV, which is in good agreement with the reported literature data of Mn 2p 3/2 and Mn 2p 1/2 in MnO [ 31 ]. Figure 2 d reveals the O 1s spectrum of MnO x @rGO (0.8:1) /C, while the peaks located at 532 eV reveal the presence of an O-Mn bond [ 43 ]. In summary, the above XPS results further demonstrated the successful product of MnO.…”

“…Under the low magnification of GO, Figure 7 a illustrates multi-layered wrinkled GO sheets, while wrinkles seem to have disappeared in rGO, as shown in Figure 7 b. The high-resolution TEM image ( Figure 7 c) shows the periodic lattice fringe with an interplanar distance of about 0.26 nm, corresponding to the MnO (111) face [ 43 ]. It confirms the nanoflake morphology of MnO in MnO@rGO (0.8:1) /C.…”