1T/2H MoSe 2 -on-MXene heterostructure as bifunctional electrocatalyst for efficient overall water splitting
Electrochimica Acta, ISSN: 0013-4686, Vol: 326, Page: 134976
2019
- 171Citations
- 122Captures
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Example: if you select the 1-year option for an article published in 2019 and a metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019. If you select the 3-year option for the same article published in 2019 and the metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019, 2018 and 2017.
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Article Description
Designing inexpensive yet active bifunctional electrocatalysts to directly split water is extremely desirable for the ever-broader applications of hydrogen energy. Herein, we present a cost-efficient multiphasic 1T/2H MoSe 2 -on-MXene nanosheets heterostructure (denote as 1T/2H MoSe 2 /MXene) as electrocatalyst for efficient overall water splitting. On one hand, the 1T/2H MoSe 2 possesses abundant active sites providing relatively high electrocatalytic activity. On the other hand, the MXene nanosheets serve as high-conductive 2D substrates capable of promoting charge transfer ability and preventing 1T/2H MoSe 2 from aggregation. Consequently, the 1T/2H MoSe 2 /MXene catalyst in alkaline media exhibits remarkable synergy in both hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) activity having advantage over pure 1T/2H MoSe 2, MXene and 2H MoSe 2 /MXene counterparts. To be specific, for HER performance, the 1T/2H MoSe 2 /MXene reveals an overpotential (95 mV) and Tafel slope (91 mV dec −1 ); for OER performance, the 1T/2H MoSe 2 /MXene shows an overpotential (340 mV) and Tafel slope (90 mV dec −1 ). Particularly, when 1T/2H MoSe 2 /MXene serving as bifunctional electrocatalyst for overall water splitting, only 1.64 V is requested to attain a current density of 10 mA cm −2. The 1T/2H MoSe 2 /MXene heterostructure also exhibits good durability in overall water splitting system.
Bibliographic Details
http://www.sciencedirect.com/science/article/pii/S001346861931847X; http://dx.doi.org/10.1016/j.electacta.2019.134976; http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85073011454&origin=inward; https://linkinghub.elsevier.com/retrieve/pii/S001346861931847X; https://dx.doi.org/10.1016/j.electacta.2019.134976
Elsevier BV
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