Surface modified mesoporous nanocast carbon as a catalyst for aqueous sulfide oxidation and adsorption of the produced polysulfides

Abstract

Surface modified mesoporous nanocast carbon can promote aqueous sulfide oxidation adsorbing the produced polysulfides.

Insight into the Mechanism of Oxygen Reduction Reaction on Micro/Mesoporous Carbons: Ultramicropores versus Nitrogen-Containing Catalytic Centers in Ordered Pore Structure

“…Therefore, and taking this, and the state-of-the-art in the application of mesoporous ordered N-doped carbons into consideration, the objective of this paper is to investigate the effects of both, micropores in ordered mesoporous carbons, either doped with N or not doped, and catalytic centers located in mesopores on the efficiency of the oxygen reduction reaction. The carbon has been synthesized from sucrose in a mesoporous silica template and further modified by oxidation and nitrogen doping to increase the range of surface properties . The performance in ORR is analyzed based on the number of electron transfer, onset potential, and kinetic current density.…”

“…Ordered nanostructured carbon was synthesized by a nanocasting technique using ordered mesoporous silica, SBA-15, as a template and sucrose as a carbon source. 47 SBA-15 pores were filled with an aqueous solution of sucrose and with sulfuric acid, as a catalyst. The mass ratio used was 1:1.3:0.14:5 (SBA-15: sucrose: H 2 SO 4 : H 2 O).…”