A facile synthesis of gold micro/nanostructures at the interface of 1,3-dibutylimidazolium bis(trifluoromethylsulfonyl)imide and water

Yao, Kaisheng; Huang, Qingling; Lu, Weiwei; Xu, Airong; Li, Xinying; Zhang, Hucheng; Wang, Jianji

doi:10.1016/j.jcis.2016.06.074

Cited by 19 publications

(10 citation statements)

References 58 publications

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“…Recently, Yao et al prepared Ag films at the IL|W interface and demonstrated that the morphology is greatly affected by the used ILions [33][34] . This fact was also confirmed by their recent work, where changing the kind of used IL-ions led Au nanostructures to form diverse morphology [35] . In addition, the particular physical properties of ILs which distinctly differ from conventional organic solvents could be favourable for the formation of unique nanostructures.…”

Section: Introductionsupporting

confidence: 61%

One-dimensional Pt nanofibers formed by the redox reaction at the ionic liquid|water interface

Zhang

Nishi

Amano

et al. 2018

Electrochimica Acta

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Pt nanofibers have been prepared with a redox reaction occurring spacio-selectively at the liquid-liquid interface between a highly hydrophobic ionic liquid (IL) and water (W), which has been utilized as two dimensional reaction field. The preparation is conducted based on the concept of the coupling between ion transfer (IT) and electron transfer (ET) across the IL|W interface, which previously enabled direct formation of dendritic Au nanofibers at the IL|W interface (Chem. Commun., 2015, 51, 13638). The successful preparation of Pt nanofibers has manifested the generality of the IL|W interface method for the formation of metal nanofibers. Electrochemical measurements at the IL|W interface have confirmed that IT of PtCl4 2from W to IL is actually coupled with ET between PtCl4 2initially dissolved in W and decamethylferrocene in IL, leading to the spontaneous formation of Pt nanofibers at the IL|W interface. Herein, IT of PtCl4 2ions from W to IL not merely neutralizes the excess charges generated in each liquid phase by ET, but also provides PtCl4 2into IL as reactants for the growth of Pt nanofibers that takes place at the IL side of the IL|W interface. The electrocatalytic activity of the Pt nanofibers in oxygen reduction reaction (ORR) has also been evaluated.

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Section: Introductionsupporting

confidence: 61%

One-dimensional Pt nanofibers formed by the redox reaction at the ionic liquid|water interface

Zhang

Nishi

Amano

et al. 2018

Electrochimica Acta

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“…37,[43][44][45][46] Recently, growing interest has been drawn on replacing organic solvents by hydrophobic ionic liquids (ILs) in the L|L interfacial method. [47][48][49][50] ILs are liquid salts which are entirely composed of cations and anions. Hence, the properties of ILs can be controlled by elaborate designs of the chemical structures of constituting ions, endowing ILs with active functions in the IL|W system.…”

Section: Introductionmentioning

confidence: 99%

Template-Free and Spontaneous Formation of Vertically Aligned Pd Nanofiber Arrays at the Liquid–Liquid Interface between Redox-Active Ionic Liquid and Water

Nishi

Sakka

2019

ACS Appl. Mater. Interfaces

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Vertically aligned Pd nanofiber arrays (NFAs) have been prepared at the liquid-liquid interface between redox-active ionic liquid (RAIL) and water (W) via a template-free manner. The RAIL with high hydrophobicity, (ferrocenylmethyl)dodecyldimethylammonium bis(nonafluorobutanesulfonyl) amide, plays dual roles of reducing agent for Pd precursor ions and the hydrophobic liquid phase simultaneously, and the RAIL|W interface has been utilized as the formation site for the spontaneous growth of Pd NFAs. The Pd NFAs consist of three parts: layers formed by partly connected particles on the top, NFAs in the middle, and firm sheet-like layers on the bottom. Owing to the top and bottom supporting layers, the anti-deformation ability and durability of the Pd NFAs with a length reaching several micrometers are enhanced. A possible mechanism for the formation of the Pd NFAs has been discussed. The Pd NFAs show a good stability and a higher electrocatalytic activity toward ethanol oxidation reaction than a commercial Pd/C catalyst. The present study provides a new strategy for the template-free and spontaneous formation of Pd NFAs.

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“…Core-shell-like structures with metallic co-deposits of Pd@Pt and Cu@Au ( Figure 7C) were reported, pointing out a new route toward the preparation of uniform and monoatomic shells on noble metals [133,149]. Recent studies on heterogeneous electron transfer between metal complex ions dissolved in the aqueous phase and reducing agents dissolved in ionic liquids have received increased attention [150,151]. Novel metal nanostructures of gold such as dendritic nanofibers, nanorods or worm-like nanowires have been synthesized, meaning that electrified waterionic liquid interface can lead to the synthesis of a wide record of new nanostructures.…”

Section: Metal Nanoparticlesmentioning

confidence: 98%

Decorating soft electrified interfaces: From molecular assemblies to nano-objects

Półtorak¹,

Gamero‐Quijano²,

Herzog³

et al. 2017

Applied Materials Today

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The interface formed between two immiscible electrolyte solutions (ITIES) constitutes a fantastic playground for the investigation of charge (under the form of either ion or electron) transfer processes. We have reviewed here the routes for the modification of such soft interfaces by an accurate electrochemical control. The three main strategies developed in the past four decades include (i) the electrochemically controlled assembly of molecules and nano-objects; (ii) the in-situ electrogeneration of nanomaterials and (iii) the use of ex-situ synthesised membranes. Applications of functionalized ITIES in the fields of redox catalysis and electroanalysis of modified soft interfaces are also discussed.

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A facile synthesis of gold micro/nanostructures at the interface of 1,3-dibutylimidazolium bis(trifluoromethylsulfonyl)imide and water

Cited by 19 publications

References 58 publications

One-dimensional Pt nanofibers formed by the redox reaction at the ionic liquid|water interface

One-dimensional Pt nanofibers formed by the redox reaction at the ionic liquid|water interface

Template-Free and Spontaneous Formation of Vertically Aligned Pd Nanofiber Arrays at the Liquid–Liquid Interface between Redox-Active Ionic Liquid and Water

Decorating soft electrified interfaces: From molecular assemblies to nano-objects

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