Efficient Catalytic Microreactors with Atomic-Layer-Deposited Platinum Nanoparticles on Oxide Support

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Efficient Catalytic Microreactors with Atomic-Layer-Deposited Platinum Nanoparticles on Oxide Support. / Rontu, Ville; Selent, Anne; Zhivonitko, Vladimir V.; Scotti, Gianmario; Koptyug, Igor V.; Telkki, Ville-Veikko; Franssila, Sami.

In: CHEMISTRY: A EUROPEAN JOURNAL, Vol. 23, 2017, p. 16835 – 16842.

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Rontu, Ville ; Selent, Anne ; Zhivonitko, Vladimir V. ; Scotti, Gianmario ; Koptyug, Igor V. ; Telkki, Ville-Veikko ; Franssila, Sami. / Efficient Catalytic Microreactors with Atomic-Layer-Deposited Platinum Nanoparticles on Oxide Support. In: CHEMISTRY: A EUROPEAN JOURNAL. 2017 ; Vol. 23. pp. 16835 – 16842.

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@article{740d37f4e67e430b969a25ebf1686079,
title = "Efficient Catalytic Microreactors with Atomic-Layer-Deposited Platinum Nanoparticles on Oxide Support",
abstract = "Microreactors attract a significant interest for chemical synthesis due to the benefits of small scales such as high surface to volume ratio, rapid thermal ramping, and well-understood laminar flows. The suitability of atomic layerdeposition for application of both the nanoparticle catalyst and the support material on the surfaces of channels of microfabricated silicon microreactors is demonstrated in this research. Continuous-flow hydrogenation of propene intopropane at low temperatures with TiO2-supported catalytic Pt nanoparticles was used as a model reaction. Reaction yield and mass transport were monitored by high-sensitivity microcoil NMR spectroscopy as well as time-of-flight remotedetection NMR imaging. The microreactors were shown to be very efficient in propene conversion into propane. The yield of 100 {\%} was achieved at 508 C with a reactor decorated with Pt nanoparticles of average size of roughly 1 nm and surface coverage of 3.2 {\%} in 20 mm long reaction channels with a residence time of 1100 ms. The activity of the Pt catalyst surfaces was on the order of several to tens of mmol s-1m-2.",
author = "Ville Rontu and Anne Selent and Zhivonitko, {Vladimir V.} and Gianmario Scotti and Koptyug, {Igor V.} and Ville-Veikko Telkki and Sami Franssila",
year = "2017",
doi = "10.1002/chem.201703391",
language = "English",
volume = "23",
pages = "16835 – 16842",
journal = "CHEMISTRY: A EUROPEAN JOURNAL",
issn = "0947-6539",

}

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TY - JOUR

T1 - Efficient Catalytic Microreactors with Atomic-Layer-Deposited Platinum Nanoparticles on Oxide Support

AU - Rontu, Ville

AU - Selent, Anne

AU - Zhivonitko, Vladimir V.

AU - Scotti, Gianmario

AU - Koptyug, Igor V.

AU - Telkki, Ville-Veikko

AU - Franssila, Sami

PY - 2017

Y1 - 2017

N2 - Microreactors attract a significant interest for chemical synthesis due to the benefits of small scales such as high surface to volume ratio, rapid thermal ramping, and well-understood laminar flows. The suitability of atomic layerdeposition for application of both the nanoparticle catalyst and the support material on the surfaces of channels of microfabricated silicon microreactors is demonstrated in this research. Continuous-flow hydrogenation of propene intopropane at low temperatures with TiO2-supported catalytic Pt nanoparticles was used as a model reaction. Reaction yield and mass transport were monitored by high-sensitivity microcoil NMR spectroscopy as well as time-of-flight remotedetection NMR imaging. The microreactors were shown to be very efficient in propene conversion into propane. The yield of 100 % was achieved at 508 C with a reactor decorated with Pt nanoparticles of average size of roughly 1 nm and surface coverage of 3.2 % in 20 mm long reaction channels with a residence time of 1100 ms. The activity of the Pt catalyst surfaces was on the order of several to tens of mmol s-1m-2.

AB - Microreactors attract a significant interest for chemical synthesis due to the benefits of small scales such as high surface to volume ratio, rapid thermal ramping, and well-understood laminar flows. The suitability of atomic layerdeposition for application of both the nanoparticle catalyst and the support material on the surfaces of channels of microfabricated silicon microreactors is demonstrated in this research. Continuous-flow hydrogenation of propene intopropane at low temperatures with TiO2-supported catalytic Pt nanoparticles was used as a model reaction. Reaction yield and mass transport were monitored by high-sensitivity microcoil NMR spectroscopy as well as time-of-flight remotedetection NMR imaging. The microreactors were shown to be very efficient in propene conversion into propane. The yield of 100 % was achieved at 508 C with a reactor decorated with Pt nanoparticles of average size of roughly 1 nm and surface coverage of 3.2 % in 20 mm long reaction channels with a residence time of 1100 ms. The activity of the Pt catalyst surfaces was on the order of several to tens of mmol s-1m-2.

U2 - 10.1002/chem.201703391

DO - 10.1002/chem.201703391

M3 - Article

VL - 23

SP - 16835

EP - 16842

JO - CHEMISTRY: A EUROPEAN JOURNAL

JF - CHEMISTRY: A EUROPEAN JOURNAL

SN - 0947-6539

ER -

ID: 17151226