Zobrazeno 1 - 10
of 41
pro vyhledávání: '"Valkiainen, Matti"'
Autor:
Jenkins, Peter, Tuurala, Saara, Vaari, Anu, Valkiainen, Matti, Smolander, Maria, Leech, Dónal
Publikováno v:
In Bioelectrochemistry October 2012 87:172-177
Autor:
Jenkins, Peter, Tuurala, Saara, Vaari, Anu, Valkiainen, Matti, Smolander, Maria, Leech, Dónal
Publikováno v:
In Enzyme and Microbial Technology 10 March 2012 50(3):181-187
Autor:
Smolander, Maria, Boer, Harry, Valkiainen, Matti, Roozeman, Robert, Bergelin, Mikael, Eriksson, Jan-Erik, Zhang, Xia-Chang, Koivula, Anu, Viikari, Liisa
Publikováno v:
In Enzyme and Microbial Technology 2008 43(2):93-102
Autor:
Keskinen, Jari, Sivonen, Eino, Bergelin, Mikael, Eriksson, Jan-Erik, Sjöberg-Eerola, Pia, Valkiainen, Matti, Smolander, Maria, Vaari, Anu, Uotila, Johanna, Boer, Harry, Tuurala, Saara
Publikováno v:
Keskinen, J, Sivonen, E, Bergelin, M, Eriksson, J-E, Sjöberg-Eerola, P, Valkiainen, M, Smolander, M, Vaari, A, Uotila, J, Boer, H & Tuurala, S 2011, Printed power source : Supercapacitor with an enzymatic bio-fuel cell . in Eicoon Workshop and Summer School : Nanomaterial Issues in Electrochemical Energy Conversion: Fuel Cells, Batteries, Supercapacitors . VTT Technical Research Centre of Finland, Espoo, VTT Symposium, no. 268, pp. 85-85, Eicoon Workshop and Summer School: Nanomaterial Issues in Electrochemical Energy Conversion, Espoo, Finland, 13/06/11 . < https://publications.vtt.fi/pdf/symposiums/2011/S268.pdf >
Inexpensive power sources are needed e.g. in RFID applications. By applying printing techniques the manufacturing costs can be minimized. To widen the applicability range the materials should be easily disposable. Enzymatic bio-fuel cells are an alte
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=355e65625b88::1f18243d4c08355742163db5ea61fcfa
https://cris.vtt.fi/en/publications/f60ef07b-57da-476d-9eb0-74ea15b4a4c1
https://cris.vtt.fi/en/publications/f60ef07b-57da-476d-9eb0-74ea15b4a4c1
Publikováno v:
Jussila, S, Valkiainen, M, Solehmainen, K & Kielosto, S 2010, Printable polyaniline-aluminum thin film batteries . in Proceedings of the 44. Annual Conference of the Finnish Physical Society . University of Jyväskylä, Jyväskylä, Finland, University of Jyväskylä: Department of Physics. Research Report, no. 3/2010, pp. 35, XLIV Physics Days-Fysiikan päivät 2010, Jyväskylä, Finland, 11/03/10 . < http://urn.fi/URN:ISBN:978-951-39-3834-5 >
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=355e65625b88::b076924de2e89c9eae12675b96a8a304
https://cris.vtt.fi/en/publications/e08e91b3-2350-450d-a297-abe1cedfb8c6
https://cris.vtt.fi/en/publications/e08e91b3-2350-450d-a297-abe1cedfb8c6
Publikováno v:
Jussila, S, Valkiainen, M & Solehmainen, K 2009, Printable polyaniline based thin film batteries . in Book of Abstracts : 2nd International Symposium on Flexible Organic Electronics, IS-FOE09 ., 130, Aristotle University of Thessaloniki, Dept. of Physics, Laboratory for Thin Films-Nanosystems and Nanometrology (LTFN)Plastic Electronics Foundation, Halkidiki, Greece, 2nd International Symposium on Flexible Organic Electronics, IS-FOE09, Halkidiki, Greece, 8/07/09 .
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=355e65625b88::fc267b65ab770805df2298f6e74a4acc
https://cris.vtt.fi/en/publications/05ff515a-9288-4ea6-859f-eb17c5cf3492
https://cris.vtt.fi/en/publications/05ff515a-9288-4ea6-859f-eb17c5cf3492
Autor:
Puhakka, Eini, Bergelin, Mikael, Keskinen, Jari, Tapper, Unto, Valkiainen, Matti, Peltonen, Terttu, Kauranen, Pertti, Rosenberg, Rolf
Publikováno v:
Puhakka, E, Bergelin, M, Keskinen, J, Tapper, U, Valkiainen, M, Peltonen, T, Kauranen, P & Rosenberg, R 2006, ' Molecular modelling approach on comparison of Pt-based PEMFC cathode-catalysts ', Paper presented at Nordic PEMFC 06, Stockholm, Sweden, 25/09/06-27/09/06 .
Molecular modelling is a novel approach in the development of new catalyst materials. Method was used to investigate Pt-based binary and ternary alloy catalysts utilized in PEM (Proton Exchange Membrane) fuel cells. The focus was on the development m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=355e65625b88::e1d28d6a96022870f9424a548c84fc78
https://cris.vtt.fi/en/publications/69c620e3-fd0c-41da-91dd-ff7400a76e3a
https://cris.vtt.fi/en/publications/69c620e3-fd0c-41da-91dd-ff7400a76e3a
Publikováno v:
Pepe, G, Suomela, J, Valkiainen, M & Selkäinaho, J 2005, Steady state optimization of a PEM fuel cell system operational parameters . in 1st European Fuel Cell Technology and Applications Conference (EFC2005) : Book of Abstracts ., 31, American Society of Mechanical Engineers (ASME), 1st European Fuel Cell Technology and Applications Conference, Rome, Italy, 14/12/05 .
The PEMFCs systems are seen as a likely fuel cell choice for the automotive applications. Automotive applications lead to variable power operation. The architectures typically adopted are load following or fuel cell-battery hybrid systems. This artic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=355e65625b88::6177250f0def068bed6d65334ebfd398
https://cris.vtt.fi/en/publications/9242cfbd-000b-46b1-b872-2442e34b8c99
https://cris.vtt.fi/en/publications/9242cfbd-000b-46b1-b872-2442e34b8c99
Autor:
Aalto, Hannu, Valkiainen, Matti
Publikováno v:
Aalto, H & Valkiainen, M 2004, Behaviour of bituminized ion-exchangers under repository conditions . in Long Term Behaviour of Low and Intermediate Level Waste Packages under Reposity Conditions : Results of a Co-Ordinated Research Project 1997-2002 (IAEA-TECDOC-1397) . International Atomic Energy Agency IAEA, Vienna, pp. 89-99 .
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=355e65625b88::a2da4586b69ad7f389504542733bbbce
https://cris.vtt.fi/en/publications/c36233e9-1509-489e-8076-fd78f51e8aad
https://cris.vtt.fi/en/publications/c36233e9-1509-489e-8076-fd78f51e8aad
Autor:
Kumpulainen, Heikki, Peltonen, Terttu, Koponen, Ulla, Bergelin, Mikael, Valkiainen, Matti, Wasberg, Mikael
Publikováno v:
Kumpulainen, H, Peltonen, T, Koponen, U, Bergelin, M, Valkiainen, M & Wasberg, M 2002, In situ voltammetric characterization of PEM fuel cell catalyst layers . VTT Tiedotteita-Research Notes, no. 2137, VTT Technical Research Centre of Finland, Espoo . < https://publications.vtt.fi/pdf/tiedotteet/2002/T2137.pdf >
In our work we have studied in-house made MEA:s (geometric area 5 cm2) based on commercial (E-TEK, Inc.) carbon supported Pt and Pt/Ru catalysts. A Nafion 115 membrane was coated with ink containing Pt/C catalyst and Nafion solution and dried layers
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=355e65625b88::3f379ee91ab63f14274f942d80edcf55
https://cris.vtt.fi/en/publications/bea0d2ad-092e-4fe1-a254-c0119d08e521
https://cris.vtt.fi/en/publications/bea0d2ad-092e-4fe1-a254-c0119d08e521