N,S-Doped Mesoporous Carbon (NSDC02, 600 m2/g) for Supercapacitor and Catalyst Support, 2 g/bottle, CSCSNSMC

In electrochemical engineering, N,S-doped mesoporous carbon (NS-MC) represents the peak of heteroatom engineering for carbon supports. By simultaneously doping Nitrogen (N) and Sulfur (S), you move beyond the benefits of N-doping alone to leverage a synergistic "spin-charge" effect that significantly boosts both supercapacitor and electrocatalyst performance.

While Nitrogen provides basic pseudocapacitance and conductivity, adding Sulfur introduces unique structural and electronic advantages: (1) Asymmetric Spin Density: Nitrogen (electronegativity 3.04) and Sulfur (2.58) differ from Carbon (2.55). This creates a "tug-of-war" for electrons, resulting in highly polarized carbon sites. These sites are exceptionally active for Oxygen Reduction (ORR) and Oxygen Evolution (OER) reactions. (2) Expanded Lattice (Structural Strain): The Sulfur atom is significantly larger than Carbon or Nitrogen. Incorporating S into the carbon rings causes a "bulge" or distortion, creating physical defects that act as additional active sites and allow for faster ion diffusion. (3) Enhanced Pseudocapacitance: Sulfur atoms in the form of Thiophene-S or Sulfone/Sulfoxide groups provide secondary redox reactions that complement the pyridinic-N reactions, pushing specific capacitance to new heights.

Notes: Please try to store the N,S-doped mesoporous carbon powder in a dry place.

References: 

1. Y. L. Xie, et al. Improved electrochemical performance of mesoporous carbon via N/S doping, J. Solid State Electrochem., 2022, 26, 1013-1020.
2. Y. Qiu, et al. N- and S-doped mesoporous carbon as metal-free cathode catalysts for direct biorenewable alcohol fuel cells, J. Mater. Chem. A, 2016, 4, 83-95.