Premium
Elemental‐Sulfur‐Mediated Facile Synthesis of a Covalent Triazine Framework for High‐Performance Lithium–Sulfur Batteries
Author(s) -
Talapaneni Siddulu Naidu,
Hwang Tae Hoon,
Je Sang Hyun,
Buyukcakir Onur,
Choi Jang Wook,
Coskun Ali
Publication year - 2016
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201511553
Subject(s) - sulfur , triazine , dissolution , chemistry , covalent bond , electrolyte , inorganic chemistry , lithium (medication) , catalysis , solvent , lithium–sulfur battery , polymer chemistry , organic chemistry , electrode , medicine , endocrinology
A covalent triazine framework (CTF) with embedded polymeric sulfur and a high sulfur content of 62 wt % was synthesized under catalyst‐ and solvent‐free reaction conditions from 1,4‐dicyanobenzene and elemental sulfur. Our synthetic approach introduces a new way of preparing CTFs under environmentally benign conditions by the direct utilization of elemental sulfur. The homogeneous sulfur distribution is due to the in situ formation of the framework structure, and chemical sulfur impregnation within the micropores of CTF effectively suppresses the dissolution of polysulfides into the electrolyte. Furthermore, the triazine framework facilitates electron and ion transport, which leads to a high‐performance lithium–sulfur battery.