Coupling Interface Constructions of MoS2 /Fe5 Ni4 S8 Heterostructures for Efficient Electrochemical Water Splitting

Coupling Interface Constructions of MoS2 /Fe5 Ni4 S8 Heterostructures for Efficient Electrochemical Water Splitting

© 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Bibliographische Detailangaben
Veröffentlicht in:Advanced materials (Deerfield Beach, Fla.). - 1998. - 30(2018), 38 vom: 17. Sept., Seite e1803151
1. Verfasser: Wu, Yi (VerfasserIn)
Weitere Verfasser: Li, Fan, Chen, Wenlong, Xiang, Qian, Ma, Yanling, Zhu, Hong, Tao, Peng, Song, Chengyi, Shang, Wen, Deng, Tao, Wu, Jianbo
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2018
Zugriff auf das übergeordnete Werk:Advanced materials (Deerfield Beach, Fla.)
Schlagworte:Journal Article chemical vapor deposition coupling interfaces hydrogen evolution in situ grown molybdenum disulfide nanosheets oxygen evolution
Beschreibung
Zusammenfassung:© 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
Water splitting is considered as a pollution-free and efficient solution to produce hydrogen energy. Low-cost and efficient electrocatalysts for the hydrogen evolution reaction (HER) and the oxygen evolution reaction (OER) are needed. Recently, chemical vapor deposition is used as an effective approach to gain high-quality MoS2 nanosheets (NSs), which possess excellent performance for water splitting comparable to platinum. Herein, MoS2 NSs grown vertically on FeNi substrates are obtained with in situ growth of Fe5 Ni4 S8 (FNS) at the interface during the synthesis of MoS2 . The synthesized MoS2 /FNS/FeNi foam exhibits only 120 mV at 10 mA cm-2 for HER and exceptionally low overpotential of 204 mV to attain the same current density for OER. Density functional theory calculations further reveal that the constructed coupling interface between MoS2 and FNS facilitates the absorption of H atoms and OH groups, consequently enhancing the performances of HER and OER. Such impressive performances herald that the unique structure provides an approach for designing advanced electrocatalysts
Beschreibung:Date Completed 10.10.2018
Date Revised 30.09.2020
published: Print-Electronic
Citation Status PubMed-not-MEDLINE
ISSN:1521-4095
DOI:10.1002/adma.201803151