Enhanced electrochemical energy storage of RGO@CoxSy through nanostructural modulation

Facile Fabrication of an SnSx‐SnO2‐Decorated Cobalt Sulfide Film as an Effective Counter Electrode for Dye‐Sensitized Solar Cells

“…Similarly, the peaks at 783.19 eV and 781.15 eV are assigned to Co 2p 3/2 of Co 2+ and Co 3+ , respectively [15] . Notably, the binding energies of Co 2p 3/2 shift to larger values by introducing SnS x ‐SnO 2 nanomaterials, suggesting that CoS x film has integrated successfully with SnS x ‐SnO 2 nanomaterials [21–23] . From Figure 2(b), the peaks at 162.89 eV and 161.81 eV are attributed to S 2p 1/2 and S 2p 3/2 for the CoS x film, respectively [11,24, 25] .…”

“…The Gaussian fitting method is used to fit Co 2p high‐resolution XPS spectra. Four characteristic peaks with binding energies at 798.16 eV, 796.68 eV, 782.60 eV, and 780.64 eV can be attributed to Co 2p 1/2 of Co 2+ , Co 2p 1/2 of Co 3+ , Co 2p 3/2 of Co 2+ , and Co 2p 3/2 of Co 3+ for CoS x film, respectively [15,21] . The Co 2p spectrum of SnS x ‐SnO 2 ‐decorated CoS x film is composed of the characteristic peaks at 798.16 eV and 796.77 eV, corresponding to Co 2p 1/2 of Co 2+ and Co 3+ , respectively.…”

“…[20] Meanwhile, the bare CoS x film undergoes the same annealing process as a control sample for comparing the effect of heat treatment. [15,21] The Co 2p spectrum of SnS x -SnO 2 -decorated CoS x film is composed of the characteristic peaks at 798.16 eV and 796.77 eV, corresponding to Co 2p 1/2 of Co 2 + and Co 3 + , respectively. Similarly, the peaks at 783.19 eV and 781.15 eV are assigned to Co 2p 3/2 of Co 2 + and Co 3 + , respectively.…”

“…[15] Notably, the binding energies of Co 2p 3/2 shift to larger values by introducing SnS x -SnO 2 nanomaterials, suggesting that CoS x film has integrated successfully with SnS x -SnO 2 nanomaterials. [21][22][23] From Figure 2(b), the peaks at 162.89 eV and 161.81 eV are attributed to S 2p 1/2 and S 2p 3/2 for the CoS x film, respectively. [11,24,25] The other three characteristic peaks can be attributed to high valent sulfur oxysalts (SO x ).…”

Recent Advances and Future Perspectives of Transition Metal‐Supported Carbon with Different Dimensions for Highly Efficient Electrochemical Hydrogen Peroxide Preparation

“…Since the 1970s, graphite particles have been used as catalysts to synthesize H 2 O 2 via the 2e – ORR process for the first time, [ 52 ] the nitrogen‐doped carbon nanomaterials or nanostructures were considered to be the best alternatives to the noble metal catalyst for highly efficient electrochemical H 2 O 2 preparation via the 2e – ORR process. In general, the carbon nanomaterials or nanostructures with a high specific surface area and hierarchical pore structure will contribute to the rapid mass transfer during the ORR process.…”