Premium
Facile Synthesis of Carbon‐Sulfur Scaffold with Transition‐Metal Sulfides and Oxides as Efficient Electrocatalysts for Oxygen Evolution Reaction
Author(s) -
Tzadikov Jonathan,
Geva Rotem,
Azoulay Adi,
Shalom Menny
Publication year - 2021
Publication title -
chemcatchem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.497
H-Index - 106
eISSN - 1867-3899
pISSN - 1867-3880
DOI - 10.1002/cctc.202100572
Subject(s) - oxygen evolution , transition metal , sulfur , carbon fibers , chemistry , inorganic chemistry , pyrene , water splitting , materials science , metal , oxygen , chemical engineering , catalysis , electrochemistry , organic chemistry , electrode , photocatalysis , composite material , composite number , engineering
Transition‐metal sulfides and oxides supported on carbon materials (MSOCs) are vastly explored as efficient electrocatalysts for water splitting, especially for the anodic oxygen evolution reaction (OER). In this work, we show the facile, scalable bottom‐up synthesis of MSOCs using available low‐cost metal salts, pyrene, and elemental sulfur as reactants. Upon condensation at high temperature, the monomers form a stable molten‐state intermediate, directing the synthesis of MSOCs due to strong coordination between the metallic cation‐sulfur‐pyrene. These materials exhibit excellent activity towards OER achieving low overpotentials of 284 and 325 mV at 10 and 100 mA cm −2 . The effect of the carbon support is demonstrated through high mass activity of the materials (∼300 A g −1 ) compared to the materials with no support.