Interwoven MXene Nanosheet/Carbon-Nanotube Composites as Li-S Cathode Hosts.
basic_science · Level V
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- Record sourced from PubMed, PMID 27859697.
- Also identified by DOI 10.1002/adma.201603040.
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Abstract
The complex surface chemistry that dictates the interaction between MXene and polysulfides - the formation of thiosulfate via consumption of -OH surface groups, followed by Lewis acid-base interaction between the exposed Ti atoms and polysulfides - is unravelled. Interweaving carbon nanotubes between the MXene layers creates a porous, conductive network with high polysulfide adsorptivity, enabling sulfur hosts with excellent performance even at high loading (5.5 mg cm<sup>-2</sup> ).