Double-shelled hollow hetero-MnCo2S4/CoS1.097 spheres with carbon coating for advanced supercapacitors

MnCo2S4‐CoS1.097 Heterostructure Nanotubes as High Efficiency Cathode Catalysts for Stable and Long‐Life Lithium‐Oxygen Batteries Under High Current Conditions

“…The peaks at 30.9°, 35.5°, 47.1°, and 54.7° can be assigned to (204), (220), (306), and (330) faces of CoS 1.097 (JCPDS No.19‐0366), indicate that the CoS 1.097 sample is composed of β ‐CoS 1.097 phase with a hexagonal structure in the space group P63/mmc (194), while in the MnCo 2 S 4 ‐CoS 1.097 XRD spectrum, the extra peaks at 31.5°, 38.2°, and 50.4° are associated with the (311), (400), and (511) faces of MnCo 2 S 4 (JCPDS No.73‐1703), which is similar to the previous result. [ 38 ]…”

One‐Step Hydrothermal Synthesis of Carbon‐Coated Nickel–Copper Sulfide Nanoparticles for High‐Performance Asymmetric Supercapacitors

“…The average pore diameters of C@Ni 0.9 Cu 0.1 ‐S and Ni 0.9 Cu 0.1 ‐S were 3.51 and 2.97 nm, respectively. C@Ni 0.9 Cu 0.1 ‐S has a larger specific surface area and a suitable pore size to provide more surface electrochemical active sites to participate in the redox reaction , …”

Asymmetric supercapacitors with excellent rate performance by integrating Co(OH)F nanorods and layered Ti3C2Tx paper

“…The results show absence of a semicircle in the high frequency area and an almost vertical line in the low frequency area which revealed a great ionic conductivity and smaller Warburg resistance. 29 Such high areal capacitance resulted from the unique 3D net structure features of the Co(OH)F@NF nanostructure we present here: (i) good contact with each of the Co(OH)F nanorods can improve electron transport, which is illustrated by the EIS results; (ii) a multichannel structure between the nanorods allows better exposure of active sites and easier electrolyte access; (iii) Co(OH)F nanorods direct growth on Ni foam can avoid electrical resistance of the binder and facilitate the transport of electrons to the conductive substrate. All the above-mentioned discussion exhibits that the Co(OH) F@NF electrode has an ideal electrochemical performance.…”