Amorphous Mo‐doped NiS<sub>0.5</sub>Se<sub>0.5</sub> Nanosheets@Crystalline NiS<sub>0.5</sub>Se<sub>0.5</sub> Nanorods for High Current‐density Electrocatalytic Water Splitting in Neutral Media
نویسندگان
چکیده
Abstract It is vitally important to develop highly active, robust and low‐cost transition metal‐based electrocatalysts for overall water splitting in neutral solution especially at large current density. In this work, amorphous Mo‐doped NiS 0.5 Se nanosheets@crystalline nanorods (Am−Mo−NiS ) was synthesized using a facil one‐step strategy. phosphate buffer saline solution, the Am−Mo−NiS shows tiny overpotentials of 48 209 mV hydrogen evolution reaction (HER), 238 514 oxygen (OER) 10 1000 mA cm −2 , respectively. Moreover, delivers excellent stability least 300 h without obvious degradation. Theoretical calculations revealed that Ni sites defect‐rich structure owns higher electron state density strengthened binding energy H 2 O, which will optimize adsorption/desorption barriers reduce adsorption OER determining step.
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ژورنال
عنوان ژورنال: Angewandte Chemie
سال: 2023
ISSN: ['1521-3773', '1433-7851', '0570-0833']
DOI: https://doi.org/10.1002/ange.202215256