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AuthorLan K.
AuthorWei Q.
AuthorWang R.
AuthorXia Y.
AuthorTan S.
AuthorWang Y.
AuthorElzatahry A.
AuthorFeng P.
AuthorMai L.
AuthorZhao D.
Available date2020-04-05T10:53:21Z
Publication Date2019
Publication NameJournal of the American Chemical Society
ResourceScopus
ISSN27863
URIhttp://dx.doi.org/10.1021/jacs.9b06962
URIhttp://hdl.handle.net/10576/13822
AbstractTwo-dimensional (2D) heterostructures endowed with mesoporosities offer exciting opportunities in electrocatalysis, photocatalysis, energy storage, and conversion technologies due to their integrated functionalities, abundant active sites and shortened diffusion distance. However, layered mesostructures have not been combined due to the immense difficulties by conventional chemical, mechanical exfoliation or self-assembly approaches. Herein, we explore a bottom-up strategy, carried out under mild conditions, for the facile synthesis of monolayered mesoporous-titania-mesoporous-carbon vertical heterostructure with uniform mesopore size, which enables ultrahigh rate capability and cycling longevity for pseudocapacitive sodium-ion storage in nonaqueous electrolyte. Such a brand-new type of heterostructure consists of well-ordered monolayered mesoporous titania nanosheets and surrounding two mesoporous carbon monolayers assembled at both sides. Remarkably, the combination of interconnected large mesoporosity and heterointerface leads to highly promoted reversible pseudocapacitance (96.4% of total charge storage at a sweep rate of 1 mV s-1), and it enables the material to retain strong mechanical stability during the rapid sodiation and desodiation processes. This study reveals the importance of incorporating mesopores into heterointerface as a strategy for enhancing charge storage kinetics of electroactive materials. - 2019 American Chemical Society.
Languageen
PublisherAmerican Chemical Society
SubjectMolybdenum compounds
Transition metals
Dichalcogenides TMDs
TitleTwo-Dimensional Mesoporous Heterostructure Delivering Superior Pseudocapacitive Sodium Storage via Bottom-Up Monomicelle Assembly
TypeArticle
Pagination16755-16762
Issue Number42
Volume Number141
dc.accessType Abstract Only


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