Effect of oxides on the adhesion of Cu films deposited onto stainless steel by electron shower and thermal evaporation methods

Yumoto, Hisami; Shimada, Sohei; Minami, Chihiro; Inoue, Takashi; Li, S. J.; Ishihara, Masatou

doi:10.1163/156856197x00651

Cited by 2 publications

(1 citation statement)

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“…Second, according to zeta potential measurements under neutral conditions, graphene was negatively charged (−9.26 mV) and the 2D Cr 2 O 3 was positively charged (32.5 mV), suggesting that electrostatic attraction contributes to the adhesion between 2D Cr 2 O 3 and graphene. Third, and finally, we speculate that some chemical bonding may occur at the interface between the electrode material and current collector, between amorphous Cr 2 O 3 nanosheets and the copper foil due to the high-valence Cr and low-coordinated surface atoms, leading to robust adhesion to the copper foil 45 46 . Such adhesion properties are interesting for applications in many fields, such as flexible energy storage devices or chemical coatings.…”

Section: Resultsmentioning

confidence: 94%

Mass production of two-dimensional oxides by rapid heating of hydrous chlorides

Zhao

Zhang

et al. 2016

Nat Commun

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Two-dimensional (2D) nanoscale oxides have attracted research interest owing to their electronic, magnetic optical and catalytic properties. If they could be manufactured on a large scale, 2D oxides would be attractive for applications ranging from electronics to energy conversion and storage. Herein, we report facile fabrication of oxide nanosheets by rapid thermal annealing of corresponding hydrous-chloride compounds. By heating CrCl3·6H2O, ZrOCl2·8H2O, AlCl3·6H2O and YCl3·6H2O crystals as precursors, we immediately collect large quantities of ultrathin Cr2O3, ZrO2, Al2O3 and Y2O3 nanosheets, respectively. The formation of layered nanosheets relies on exfoliation driven by rapid evaporation of water and/or other gas molecules generated under annealing. Our route allows simple, efficient and inexpensive production of 2D oxides. As a demonstration, we evaluate Cr2O3 nanosheets prepared by our method as anodes in lithium-ion batteries and find superior performance in comparison with their microcrystalline counterparts.

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Section: Resultsmentioning

confidence: 94%