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Metalloid Te‐Doped Fe‐Based Catalysts Applied for Electrochemical Water Oxidation
Author(s) -
Wu Xiujuan,
Lu Liangjie,
Liu Hongzhen,
Feng Lu,
Li Weijia,
Sun Licheng
Publication year - 2021
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.202101301
Subject(s) - overpotential , tafel equation , telluride , catalysis , materials science , electrochemistry , oxygen evolution , inorganic chemistry , electrolysis of water , chemical engineering , amorphous solid , nanomaterial based catalyst , electrolyte , metal , chemistry , metallurgy , electrolysis , electrode , organic chemistry , engineering
Abstract Metal telluride nanocatalysts have been widely used in the catalytic reactions. However, there are few examples of electrocatalytic water oxidation with metal telluride as catalysts, especially Fe‐based telluride, to the best of our knowledge, has not yet been reported. In this work, the Te‐doped Fe‐based catalysts (FeTe x ) with crystalline and amorphous nanosheet structures have been successfully synthesized by chemical vapor deposition (CVD) as well as electrodeposition (ED) on the iron foam (IF), where the latter exhibited more remarkable electrocatalytic performance towards the oxygen evolution reaction (OER) in the alkaline electrolyte, requiring the overpotential ( η ) of only 264.4 mV to reach a current density of 10 mA cm −2 with a Tafel slope of 54.2 mV dec −1 . The electrochemical study confirmed that the residual Te in ED‐FeTe x does play a role in promoting the catalytic activity for the electrocatalytic water oxidation.