Abstract
The modification of various carbonaceous materials by sulphur vapor was studied. The electrochemical properties of the products were measured in cells with a lithium counter electrode and either a liquid or a solid electrolyte. It was found that only physically adsorbed sulphur on the carbon surface is electrochemically active. Chemisorbed sulphur, which cannot be extracted with CS 2 or desorbed in vacuum at 300°C, is not electrochemically active. Sulphur is reduced in cells with a liquid electrolyte to polysulphides soluble in the electrolyte, causing irreversibility of the process. In cells with a solid polymeric electrolyte, P(EO) 8.LiClO 4, the sulphur-modified carbon can be cycled with a coulombic capacity decreasing from 175 mA h g −1 in the first to appreciably lower values in further cycles.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
