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Continuous Microflu...
Continuous Microfluidic Synthesis of Pd Nanocubes and PdPt Core–Shell Nanoparticles and Their Catalysis of NO2 Reduction
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- Pekkari, Anna, 1989 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Say, Zafer, 1987 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Susarrey- Arce, Arturo, 1981 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Langhammer, Christoph, 1978 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Härelind, Hanna, 1973 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Sebastian, Victor (author)
- Universidad de Zaragoza,University of Zaragoza
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- Moth-Poulsen, Kasper, 1978 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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(creator_code:org_t)
- 2019-08-16
- 2019
- English.
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In: ACS Applied Materials & Interfaces. - : American Chemical Society (ACS). - 1944-8252 .- 1944-8244. ; 11:39, s. 36196-36204
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https://doi.org/10.1...
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Abstract
Subject headings
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- Faceted colloidal nanoparticles are currently of immense interest due to their unique electronic, optical, and catalytic properties. However, continuous flow synthesis that enables rapid formation of faceted nanoparticles of single or multi-elemental composition is not trivial. We present a continuous flow synthesis route for the synthesis of uniformly sized Pd nanocubes and PdPt core-shell nanoparticles in a single-phase microfluidic reactor, which enables rapid formation of shaped nanoparticles with a reaction time of 3 min. The PdPt core-shell nanoparticles feature a dendritic, high surface area with the Pt shell covering the Pd core, as verified using high-resolution scanning transmission electron microscopy and energy dispersive X-ray spectroscopy. The Pd nanocubes and PdPt core-shell particles are catalytically tested during NO2 reduction in the presence of H2 in a flow pocket reactor. The Pd nanocubes exhibited low-temperature activity (i.e., <136 °C) and poor selectivity performance toward production of N2O or N2, whereas PdPt core-shell nanoparticles showed higher activity and were found to achieve better selectivity during NO2 reduction retaining its basic structure at relatively elevated temperatures, making the PdPt core-shell particles a unique, desirable synergic catalyst material for potential use in NOx abatement processes.
Subject headings
- NATURVETENSKAP -- Kemi -- Oorganisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Inorganic Chemistry (hsv//eng)
- NATURVETENSKAP -- Kemi -- Materialkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Materials Chemistry (hsv//eng)
- NATURVETENSKAP -- Fysik -- Annan fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Other Physics Topics (hsv//eng)
Keyword
- flow chemistry
- palladium
- microreactor
- core-shell
- platinum
Publication and Content Type
- art (subject category)
- ref (subject category)
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Pekkari, Anna, 1 ...
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Say, Zafer, 1987
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Susarrey- Arce, ...
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Langhammer, Chri ...
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Härelind, Hanna, ...
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Sebastian, Victo ...
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Moth-Poulsen, Ka ...
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- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Chemical Science ...
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and Inorganic Chemis ...
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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 ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Other Physics To ...
- Articles in the publication
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ACS Applied Mate ...
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Chalmers University of Technology