Preparation of Sulfur‐doped Carbon for Supercapacitor Applications: A Review

Abstract

als-based SCs have demonstrated enhanced surface wettability, improved conductivity, and induced pseudocapacitance effect, thereby delivering improved specific energy and specific power. Many reports on S-doped carbon for SC applications have been published, but there is no specific Review on the preparation of S-doped carbon for SC applications. This Review focuses on recent developments in the field of SC electrodes made from Sdoped carbon materials. Herein, the preparation methods and applications of S-doped carbon for SCs were summarized following a brief discussion of different electrochemical characterization techniques of SCs. Finally, the challenges of S-doped carbon materials and their potential prospects were discussed to give crucial insights into the favorable factors for future innovations of SC electrodes. This Review aims to provide insight for further research on the preparation of S-doped carbon for electrochemical energy storage applications.

Thiol-decorated covalent organic frameworks as multifunctional materials for high-performance supercapacitors and heterogeneous catalysis

“…26 Among the heteroatom dopants, sulfur exhibits a high electronegativity (2.58) compared to that of carbon (2.55), and as a result, the addition of sulfur atoms to a carbon-based material's lattice improves not only its electrical conductivity but also the specific capacitance due to the redox activity of sulfur-based functional groups. 27 For instance, a S-doped graphene aerogel reported by Yu et al delivered a high specific capacitance of 445.6 F g −1 in 1 M H 2 SO 4 , which is four-fold greater than that of graphene aerogel without S-doping. 28 There are very few examples involving the post-synthetic grafting of sulfur atoms as pendant groups in COF backbones.…”

N-doped graphitized porous carbon derived from N-rich polymer for improved supercapacitor performance

“…, N, P, S and B) into porous carbon materials has been widely used to enhance the capacitive performance. 20–23 Among these materials, N-doped porous carbon has attracted intensive research interest owing to its excellent electrochemical performance. 24 The N species doped in the carbon matrix could improve the electrical conductivity and the surface wettability and produce the additional Faraday pseudocapacitance compared to the purely porous carbon, thereby increasing the overall capacitance and the energy density of porous carbons.…”

Boosted H2O2 Productivity by Sulfur-Doped Pd/Carbon Catalysts via Direct Synthesis from H2 and O2 at Atmospheric Pressure

“…Sulfur-doped carbon (SC) catalysts have shown excellent performances in reduction and hydrogenation reactions. , Due to the larger electronegativity of sulfur than oxygen (Pauling electronegativity scale S: 2.58, O: 2.55), the charge distribution of the carbon skeleton will be rearranged and further affect the surface properties . The effect of sulfur on carbon-based catalysts has been observed in the semihydrogenation of phenylacetylene, where styrene selectivity is enhanced by sulfur-doped carbon supports .…”