Výsledky vyhledávání - "Leonard Matisen"

Platinum nanoparticles photo-deposited on SnO2-C composites: An active and durable electrocatalyst for the oxygen reduction reaction

Autor: Maido Merisalu, Nicolas Alonso-Vante, Jaan Aruväli, Mihkel Rähn, Sajid Hussain, Päärn Paiste, Kaido Tammeveski, Leonard Matisen, Heiki Erikson, Väino Sammelselg, Nadezda Kongi, Luis Alberto Estudillo-Wong

Publikováno v: Electrochimica Acta. 316:162-172

Platinum nanoparticles (NPs) were photo-deposited on SnO2-C nanocomposites prepared by sol-gel method. Surface morphology of the prepared materials, examined by scanning electron microscopy (SEM) and transmission electron microscopy, confirmed select

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0b68d78730e9810297c51619f47083ff
https://doi.org/10.1016/j.electacta.2019.05.104

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Polymer-derived Co/Ni–SiOC(N) ceramic electrocatalysts for oxygen reduction reaction in fuel cells

Autor: Mati Kook, Kaido Tammeveski, Thamires Canuto de Almeida e Silva, Leonard Matisen, Väino Sammelselg, Elo Kibena-Põldsepp, Maido Merisalu, Michaela Wilhelm, Kurosch Rezwan, Marek Mooste

Publikováno v: Catalysis Science & Technology. 9:854-866

Cobalt/nickel-containing SiOC-based porous ceramic electrocatalysts were prepared by pyrolysis of poly(methyl silsesquioxane) and poly(methyl phenyl silsesquioxane) as preceramic precursors combined with graphite and Co/Ni metal salts at 1000 °C in

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5053ed70caf37ffe054f96b78eb63da9
https://doi.org/10.1039/c8cy02207k

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Novel multi walled carbon nanotube based nitrogen impregnated Co and Fe cathode catalysts for improved microbial fuel cell performance

Autor: Mati Kook, Rintu Banerjee, Leonard Matisen, Karl-Kalev Türk, Ivar Kruusenberg, Elo Kibena-Põldsepp, Makarand M. Ghangrekar, Väino Sammelselg, A. Mitra, Kaido Tammeveski, Maido Merisalu, G. D. Bhowmick

Publikováno v: International Journal of Hydrogen Energy. 43:23027-23035

For application in a microbial fuel cell (MFC), transition metal and nitrogen co-doped nanocarbon catalysts were synthesised by pyrolysis of multi-walled carbon nanotubes (MWCNTs) in the presence of iron- or cobalt chloride and nitrogen source. For t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8c3bfe54020ddac77806aaf0ee810b45
https://doi.org/10.1016/j.ijhydene.2018.10.143

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Surface and electrochemical characterization of aryl films grafted on polycrystalline copper from the diazonium compounds using the rotating disk electrode method

Autor: Leonard Matisen, Väino Sammelselg, Margus Marandi, Marek Mooste, Elo Kibena-Põldsepp, Fetah I. Podvorica, Kaido Tammeveski

Publikováno v: Journal of Electroanalytical Chemistry. 817:89-100

In this paper, aryl films are grafted via electrochemical reduction of two different diazonium salts, 4-nitrobenzenediazonium tetrafluoroborate and Fast Red AL salt, in different conditions on polycrystalline copper electrodes. For the surface modifi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a14ef12779798da1a5f36e524c196897
https://doi.org/10.1016/j.jelechem.2018.03.070

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Oxygen Reduction on Catalysts Prepared by Pyrolysis of Electrospun Styrene–Acrylonitrile Copolymer and Multi-walled Carbon Nanotube Composite Fibres

Autor: Väino Sammelselg, Viktoria Vassiljeva, Leonard Matisen, Kaido Tammeveski, Andres Krumme, Vambola Kisand, Mati Kook, Maido Merisalu, Marek Mooste, Elo Kibena-Põldsepp

Publikováno v: Catalysis Letters. 148:1815-1826

For the first time, the oxygen reduction reaction (ORR) is studied on pyrolysed electrospun multi-walled carbon nanotube (MWCNT) and styrene–acrylonitrile (SAN) composite fibre catalysts in alkaline medium. Scanning electron microscopy images revea

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::84c0988402e156537925fc47827e82cf
https://doi.org/10.1007/s10562-018-2392-6

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Pt nanoparticles sputter-deposited on TiO2/MWCNT composites prepared by atomic layer deposition: Improved electrocatalytic activity towards the oxygen reduction reaction and durability in acid media

Autor: Sajid Hussain, Leonard Matisen, Mihkel Rähn, Heiki Erikson, Peeter Ritslaid, Maido Merisalu, Aivar Tarre, Nadezda Kongi, Väino Sammelselg, Kaido Tammeveski

Publikováno v: International Journal of Hydrogen Energy. 43:4967-4977

Acid-treated multi-walled carbon nanotubes (MWCNTs) were decorated with TiO2 using the atomic layer deposition (ALD) technique followed by uniform distribution of platinum nanoparticles (PtNPs) through magnetron sputtering. Surface analyses were perf

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::aa1256981913b09d7f984d5a17d1f5a8
https://doi.org/10.1016/j.ijhydene.2018.01.143

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Oxygen Electroreduction in Alkaline Solution on Pd Coatings Prepared by Galvanic Exchange of Copper

Autor: Leonard Matisen, Madis Lüsi, Maido Merisalu, Aarne Kasikov, Kaido Tammeveski, Väino Sammelselg, Heiki Erikson

Publikováno v: Electrocatalysis. 9:400-408

Thin Pd coatings were obtained on glassy carbon electrodes by galvanically replacing the electron beam-deposited copper layers with palladium. The prepared electrodes were studied by scanning electron microscopy (SEM) and X-ray photoelectron spectros

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::69bca2370f03f88e325598b2e7fac0be
https://doi.org/10.1007/s12678-017-0445-z

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Platinum nanoparticles supported on nitrobenzene-functionalised graphene nanosheets as electrocatalysts for oxygen reduction reaction in alkaline media

Autor: Leonard Matisen, Nadezda Kongi, Kaido Tammeveski, Sajid Hussain, Väino Sammelselg, Jekaterina Kozlova

Publikováno v: Electrochemistry Communications, Vol 81, Iss, Pp 79-83 (2017)

A systematic study on the electrocatalytic properties of Pt nanoparticles supported on nitrobenzene-modified graphene (Pt-NB/G) as catalyst for oxygen reduction reaction (ORR) in alkaline solution was performed. Graphene nanosheets were spontaneously

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7e4404bc1eb231b58ad82108e74e0279
https://doi.org/10.1016/j.elecom.2017.06.009

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