Muench, Falk ; Felix, Eva-Maria ; Rauber, Markus ; Schaefer, Sandra ; Antoni, Markus ; Kunz, Ulrike ; Kleebe, Hans-Joachim ; Trautmann, Christina ; Ensinger, Wolfgang (2016)
Electrodeposition and electroless plating of hierarchical metal superstructures composed of 1D nano- and microscale building blocks.
In: Electrochimica Acta, 202
doi: 10.1016/j.electacta.2016.03.188
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
The fabrication of ordered superstructures composed of nano-and microscale building blocks is of tremendous interest. In this work, we present a versatile approach for the synthesis of hierarchical and free-standing metal architectures of high structural complexity. Using the ion-track etching technique, hierarchically porous polycarbonate membranes are obtained, which are employed as nanocasting templates. Pore filling is accomplished by the two complementary wet-chemical techniques electrodeposition and electroless plating. Depending on the pore filling mechanism and the template structure, a wide range of novel metal nano-/micro-architectures can be realized. The products can be characterized as hierarchical assemblies of 1D structures (nanotubes, nanowires, microwires, nanorods). With electrodeposition, complete pore filling is achieved, which results in the formation of wire-based morphologies. Special attention is dedicated to the controlled partial filling of the pores with electroless plating, which allows the simultaneous deposition of tubes and - depending on the conformity of the plating reaction and the deposition time - narrower arrays of tubes, wires or rods. To demonstrate the favorable functional properties of the obtainable products, a silver-based wire-tube assembly is employed in the enzyme-free and selective electrochemical detection of hydrogen peroxide. An excellent sensitivity of 1340 mu A mM(-1)cm(-2) and a fast response time of <2 s is achieved, which is explained by the absence of binders, the well-accessible, open-pored structure, the presence of continuous conduction pathways and the high surface area of the material. (C) 2016 Elsevier Ltd. All rights reserved.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2016 |
| Autor(en): | Muench, Falk ; Felix, Eva-Maria ; Rauber, Markus ; Schaefer, Sandra ; Antoni, Markus ; Kunz, Ulrike ; Kleebe, Hans-Joachim ; Trautmann, Christina ; Ensinger, Wolfgang |
| Art des Eintrags: | Bibliographie |
| Titel: | Electrodeposition and electroless plating of hierarchical metal superstructures composed of 1D nano- and microscale building blocks |
| Sprache: | Englisch |
| Publikationsjahr: | 1 Juni 2016 |
| Verlag: | Elsevier |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Electrochimica Acta |
| Jahrgang/Volume einer Zeitschrift: | 202 |
| DOI: | 10.1016/j.electacta.2016.03.188 |
| Kurzbeschreibung (Abstract): | The fabrication of ordered superstructures composed of nano-and microscale building blocks is of tremendous interest. In this work, we present a versatile approach for the synthesis of hierarchical and free-standing metal architectures of high structural complexity. Using the ion-track etching technique, hierarchically porous polycarbonate membranes are obtained, which are employed as nanocasting templates. Pore filling is accomplished by the two complementary wet-chemical techniques electrodeposition and electroless plating. Depending on the pore filling mechanism and the template structure, a wide range of novel metal nano-/micro-architectures can be realized. The products can be characterized as hierarchical assemblies of 1D structures (nanotubes, nanowires, microwires, nanorods). With electrodeposition, complete pore filling is achieved, which results in the formation of wire-based morphologies. Special attention is dedicated to the controlled partial filling of the pores with electroless plating, which allows the simultaneous deposition of tubes and - depending on the conformity of the plating reaction and the deposition time - narrower arrays of tubes, wires or rods. To demonstrate the favorable functional properties of the obtainable products, a silver-based wire-tube assembly is employed in the enzyme-free and selective electrochemical detection of hydrogen peroxide. An excellent sensitivity of 1340 mu A mM(-1)cm(-2) and a fast response time of <2 s is achieved, which is explained by the absence of binders, the well-accessible, open-pored structure, the presence of continuous conduction pathways and the high surface area of the material. (C) 2016 Elsevier Ltd. All rights reserved. |
| Freie Schlagworte: | Ion beam technology, electrodeposition, electroless plating, free-standing nanostructures, hierarchical nanomaterials |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften 11 Fachbereich Material- und Geowissenschaften > Geowissenschaften 11 Fachbereich Material- und Geowissenschaften > Geowissenschaften > Fachgebiet Geomaterialwissenschaft 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Materialanalytik 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Ionenstrahlmodifizierte Materialien 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Physikalische Metallkunde |
| Hinterlegungsdatum: | 06 Jun 2016 12:03 |
| Letzte Änderung: | 16 Aug 2021 10:16 |
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