Synthesis of tungsten carbide and tungsten disulfide on vertically aligned multi-walled carbon nanotube forests and their application as non-Pt electrocatalysts for the hydrogen evolution reaction

Autor: Geza Toth, Jani Mäklin, Róbert Puskás, Ákos Kukovecz, Aron Dombovari, Olli Pitkänen, Jhih Fong Lin, Krisztian Kordas

Publikováno v: Journal of Materials Chemistry A. 3:14609-14616

Direct growth of tungsten carbide and sulfide on vertically aligned carbon nanotubes (CNTs) is demonstrated for a facile construction of three-dimensional electrocatalyst nanostructures. A thin layer of tungsten was first deposited on free-standing C

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3e12662c71c44c9a2720aa3c63d40876
https://doi.org/10.1039/c5ta02908b

Room temperature hydrogen sensors based on metal decorated WO3 nanowires

Autor: Jarmo Kukkola, Melinda Mohl, Jani Mäklin, Zoltán Kónya, Anne Riikka Leino, Andrey Shchukarev, Niina Halonen, Heli Jantunen, Krisztian Kordas

Publikováno v: Sensors and Actuators B: Chemical. 186:90-95

The emerging hydrogen economy has created a demand for the development of improved hydrogen sensors operating at room temperature. In this work, we present hydrogen detectors based on metal decorat ...

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::393f023d8d27cdd22c102ae1a20c7c08
https://doi.org/10.1016/j.snb.2013.05.082

Low-temperature growth of multi-walled carbon nanotubes by thermal CVD

Autor: Ming-Chung Wu, Jarmo Kukkola, Hsueh-Chung Liao, Andrey Shchukarev, Zoltán Kónya, Wei-Fang Su, László Nagy, Geza Toth, Ákos Kukovecz, Anne Riikka Leino, Jyri-Pekka Mikkola, Krisztian Kordas, András Sápi, Róbert Puskás, Jani Mäklin, Niina Halonen

Publikováno v: physica status solidi (b). 248:2500-2503

Low-temperature thermal chemical vapor deposition (thermal CVD) synthesis of multi-walled carbon nanotubes (MWCNTs) was studied using a large variety of different precursor compounds. Cyclopentene oxide, tetrahydrofuran, methanol, and xylene: methano

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::bcb4d9700a871ea110f9b918c4e0a684
https://doi.org/10.1002/pssb.201100137

Novel printed nanostructured gas sensors

Autor: Jarmo Kukkola, Ghassan E. Jabbour, Tomi Hassinen, Antti Sunnari, Risto Myllylä, Andrey Shchukarev, Elina Jansson, Tapio Fabritius, Geza Toth, Hanna M. Haverinen, Niina Halonen, Rafal Sliz, Jukka Hast, Alexander L. Vasiliev, Alexey Popov, Jyrki Lappalainen, Jyri-Pekka Mikkola, Karoliina Jokinen, Heli Jantunen, Krisztian Kordas, Jani Mäklin, N.P. Zaretskiy

Publikováno v: Kukkola, J, Jansson, E, Popov, A, Lappalainen, J, Mäklin, J, Halonen, N, Tóth, G, Shchukarev, A, Mikkola, J-P, Jantunen, H, Kordás, K, Hast, J, Hassinen, T, Sunnari, A, Jokinen, K, Haverinen, H, Sliz, R, Jabbour, G, Fabritius, T, Myllylä, R, Vasiliev, A & Zaretskiy, N 2011, ' Novel printed nanostructured gas sensors ', Procedia Engineering, vol. 25, pp. 896-899 . https://doi.org/10.1016/j.proeng.2011.12.220

There is a need for low-cost mass-production circuits on various substrates, possibly performing some simple functions as switches, antennas, displays, and sensors. Also in the field of gas sensors widely used in several applications there is a need

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dfd0e00c96ed51e29eee59612f9337dc
https://cris.vtt.fi/en/publications/33ef6a58-7dee-446b-8f20-3efd6f248910

Electrical Transport and Field-Effect Transistors Using Inkjet-Printed SWCNT Films Having Different Functional Side Groups

Autor: Panu Helistö, Geza Toth, Mauricio Terrones, Eduardo Gracia-Espino, Juho Luomahaara, Robert Vajtai, Niina Halonen, Giovanni Sala, Heli Jantunen, Heikki Seppä, Krisztian Kordas, Flavio Pino, Jani Mäklin, Pulickel M. Ajayan

Publikováno v: Gracia-Espino, E, Sala, G, Pino, F, Halonen, N, Luomahaara, J, Mäklin, J, Tóth, G, Kordás, K, Jantunen, H, Terrones, M, Helistö, P, Seppä, H, Ajayan, P M & Vajtai, R 2010, ' Electrical transport and field-effect transistors using inkjet-printed SWCNT films having different functional side groups ', ACS Nano, vol. 4, no. 6, pp. 3318-3324 . https://doi.org/10.1021/nn1000723

The electrical properties of random networks of single-wall carbon nanotubes (SWNTs) obtained by inkjet printing are studied. Water-based stable inks of functionalized SWNTs (carboxylic acid, amide, poly(ethylene glycol), and polyaminobenzene sulfoni

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d8d3790a102048c6bef9a89b1c696b63
https://doi.org/10.1021/nn1000723