Co-doped SnS microsphere decorated carbon nanofiber flexible films for supercapacitor applications

Zou, Jie; Song, Zhanqian; Huang, Ying; Wang, Jiaming; Liu, Xudong; Zhang, Shuai; Gao, Yan; Chen, Chen; Yu, Meng

doi:10.1016/j.jallcom.2023.171400

Cited by 16 publications

(3 citation statements)

References 55 publications

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“…The high SSA of CTS0.2-rGO revealed that it may have well-distributed particles on the surface, i.e., no agglomeration, and this also results in good interaction with the optimum cobalt concentration and SnS-rGO as compared to all synthesized samples. 34 Figure 2d depicts the BJH plot of all the synthesized materials, in which most of the samples have pore size in the range of 2−50 nm which indicates their mesoporous character. 34 A highly magnified image of BJH plots is shown in the inset of Figure 2d 1 .…”

Section: Structural Morphological Chemical and Surfacementioning

confidence: 99%

“…34 Figure 2d depicts the BJH plot of all the synthesized materials, in which most of the samples have pore size in the range of 2−50 nm which indicates their mesoporous character. 34 A highly magnified image of BJH plots is shown in the inset of Figure 2d 1 . The mesopores present in the sample can improve the faster charge transfer and provide a large electrochemical active surface.…”

Section: Structural Morphological Chemical and Surfacementioning

confidence: 99%

“…15,35 In the HR-TEM image (Figure 4b,c), fringes are observed due to the crystalline structure of CTS0.2-rGO with the interlayer spacing (d = 0.35 nm) corresponding to the (120) plane. 34,36 It indicates that cobalt substitution and rGO can tremendously result in the enhancement of interlayer spacing. During in situ growth of SnS, rGO gets intercalated between the SnS sheets.…”

Section: Structural Morphological Chemical and Surfacementioning

confidence: 99%

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Cobalt Substitution on SnS-rGO Composites for Efficient Oxygen and Hydrogen Evolution Reactions

Kumar,

Saharan,

Singh

et al. 2024

Energy Fuels

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To overcome the high cost of established electrocatalysts (viz., Pt/C and RuO2), there is a pressing need to replace them with highly efficient, cost-effective, and sustainable electrocatalysts. In this study, a series of Co-substituted orthorhombic tin sulfide-reduced graphene oxide (SnS-rGO) [CTSx-rGO, (x: 0.1 to 0.3)] catalysts were produced via a one-pot hydrothermal process. In potassium hydroxide (1.0 mol/L), CTSx-rGO acts as a highly competent and stable catalyst for both oxygen evolution reaction (OER) and hydrogen evolution reaction (HER) owing to the cumulative effect of Co and SnS-rGO composites. Co substitution improves the electrochemical active surface area (ECSA), reduces the R ct (charge-transfer resistance), and tunes the electronic configuration. The resulting CTS0.2-rGO composite exhibited exceptional performance toward the OER and HER activities by offering relatively small overpotentials of 323.0 and 233.1 mV at 20 mA/cm2, respectively, with long-term stability up to 50 h and high ECSA that is attributable to the improvement of the specific surface area and ample active sites resulting from the in situ structural and morphology change in SnS-rGO with Co substitution. This work facilitates and strengthens the development of an efficient Co-substituted SnS-rGO-based heterostructure electrocatalyst for overall water splitting.

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Section: Structural Morphological Chemical and Surfacementioning

confidence: 99%

Section: Structural Morphological Chemical and Surfacementioning

confidence: 99%