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Catalytic nanotruss...
Catalytic nanotruss structures realized by magnetic self-assembly in pulsed plasma
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- Ekeroth, Sebastian, 1988- (author)
- Linköpings universitet,Plasma och ytbeläggningsfysik,Tekniska fakulteten
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- Münger, Peter, 1960- (author)
- Linköpings universitet,Teoretisk Fysik,Tekniska fakulteten
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- Boyd, Robert, 1972- (author)
- Linköpings universitet,Plasma och ytbeläggningsfysik,Tekniska fakulteten
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- Ekspong, Joakim (author)
- Umeå universitet,Institutionen för fysik,Umea Univ, Dept Phys, SE-90187 Umea, Sweden.
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- Wågberg, Thomas, 1971- (author)
- Umeå universitet,Institutionen för fysik,Umea Univ, Dept Phys, SE-90187 Umea, Sweden.
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- Edman, Ludvig, 1967- (author)
- Umeå universitet,Institutionen för fysik,Umea Univ, Dept Phys, SE-90187 Umea, Sweden.
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- Brenning, Nils (author)
- Linköpings universitet,KTH,Rymd- och plasmafysik,Linkoping Univ, Dept Phys, SE-58183 Linkoping, Sweden,Plasma och ytbeläggningsfysik,Tekniska fakulteten,KTH Royal Inst Technol, Sweden
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- Helmersson, Ulf, 1955- (author)
- Linköpings universitet,Plasma och ytbeläggningsfysik,Tekniska fakulteten
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(creator_code:org_t)
- 2018-04-06
- 2018
- English.
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In: Nano Letters. - : American Chemical Society (ACS). - 1530-6984 .- 1530-6992. ; 18:5, s. 3132-3137
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Abstract
Subject headings
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- Tunable nanostructures that feature a high surface area are firmly attached to a conducting substrate and can be fabricated efficiently over significant areas, which are of interest for a wide variety of applications in, for instance, energy storage and catalysis. We present a novel approach to fabricate Fe nanoparticles using a pulsed-plasma process and their subsequent guidance and self-organization into well-defined nanostructures on a substrate of choice by the use of an external magnetic field. A systematic analysis and study of the growth procedure demonstrate that nondesired nanoparticle agglomeration in the plasma phase is hindered by electrostatic repulsion, that a polydisperse nanoparticle distribution is a consequence of the magnetic collection, and that the formation of highly networked nanotruss structures is a direct result of the polydisperse nanoparticle distribution. The nanoparticles in the nanotruss are strongly connected, and their outer surfaces are covered with a 2 nm layer of iron oxide. A 10 μm thick nanotruss structure was grown on a lightweight, flexible and conducting carbon-paper substrate, which enabled the efficient production of H2 gas from water splitting at a low overpotential of 210 mV and at a current density of 10 mA/cm2.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Nanoteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Nano-technology (hsv//eng)
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
- NATURVETENSKAP -- Kemi -- Materialkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Materials Chemistry (hsv//eng)
Keyword
- nanotrusses
- nanowires
- nanoparticles
- iron
- electrocatalysis
- pulsed sputtering
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Ekeroth, Sebasti ...
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Münger, Peter, 1 ...
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Boyd, Robert, 19 ...
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Ekspong, Joakim
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Wågberg, Thomas, ...
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Edman, Ludvig, 1 ...
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show more...
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Brenning, Nils
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Helmersson, Ulf, ...
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- About the subject
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- ENGINEERING AND TECHNOLOGY
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ENGINEERING AND ...
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and Nano technology
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Condensed Matter ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Chemical Science ...
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and Materials Chemis ...
- Articles in the publication
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Nano Letters
- By the university
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Umeå University
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Royal Institute of Technology
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Linköping University