Zobrazeno 1 - 10
of 186
pro vyhledávání: '"Jaan Aruväli"'
Autor:
Jaana Lilloja, Oluwaseun E. Fetuga, Elo Kibena‐Põldsepp, Arvo Kikas, Maike Käärik, Jaan Aruväli, Jekaterina Kozlova, Alexey Treshchalov, Vambola Kisand, Jaan Leis, Kaupo Kukli, Kaido Tammeveski
Publikováno v:
ChemElectroChem, Vol 11, Iss 19, Pp n/a-n/a (2024)
Abstract In this work, iron‐ and nitrogen‐doped carbide‐derived carbon and carbon nanotube (CDC/CNT) composites are prepared and used as oxygen reduction reaction (ORR) electrocatalysts in acidic conditions. Three different approaches are taken
Externí odkaz:
https://doaj.org/article/18271e25dc6643ebacde5713e0bd655e
Publikováno v:
Reactions, Vol 4, Iss 4, Pp 635-646 (2023)
LiAlH4 is a potential solid-state H2 storage material, where safe and efficient H2 storage is of critical importance for the transition towards a sustainable emission-free economy. To improve the H2 release and storage properties of LiAlH4, confineme
Externí odkaz:
https://doaj.org/article/15b2582d39da4c00b7142a7ac264a1ab
Autor:
Madis Lüsi, Heiki Erikson, Maike Käärik, Helle-Mai Piirsoo, Jaan Aruväli, Arvo Kikas, Vambola Kisand, Jaan Leis, Kaupo Kukli, Kaido Tammeveski
Publikováno v:
Nanomaterials, Vol 14, Iss 12, p 994 (2024)
We explored two methods for synthesizing Pd nanoparticles using three different carbide-derived carbon (CDC) support materials, one of which was nitrogen-doped. These materials were studied for oxygen reduction reaction (ORR) in 0.1 M KOH solution, a
Externí odkaz:
https://doaj.org/article/9a920a06b51b4754a92c19de56bc242d
Autor:
Yogesh Kumar, Elo Kibena-Põldsepp, Srinu Akula, Jekaterina Kozlova, Arvo Kikas, Jaan Aruväli, Vambola Kisand, Kaupo Kukli, Kaido Tammeveski
Publikováno v:
Electrochemistry Communications, Vol 157, Iss , Pp 107623- (2023)
The focus in the development of catalysts doped with transition metals aims to replace platinum group metal catalysts in fuel cells. However, these non-precious metal catalysts exhibit limited performance in acidic environment for the oxygen reductio
Externí odkaz:
https://doaj.org/article/45759659aa424913ba0d0c7a927c13ed
Autor:
Kaur Muuli, Dr. Marek Mooste, Dr. Srinu Akula, Dr. Viktoria Gudkova, Markus Otsus, Dr. Arvo Kikas, Dr. Jaan Aruväli, Dr. Alexey Treshchalov, Dr. Vambola Kisand, Dr. Aile Tamm, Prof. Andres Krumme, Prof. Sara Cavaliere, Prof. Kaido Tammeveski
Publikováno v:
ChemElectroChem, Vol 10, Iss 17, Pp n/a-n/a (2023)
Abstract A Pt‐free cathode catalyst is necessary for proton‐exchange membrane fuel cell (PEMFC) to enable the widespread use of these environmentally friendly energy conversion devices at affordable price. Herein, a pyrolyzed electrospun carbon n
Externí odkaz:
https://doaj.org/article/459bfc8b5b4041bb927b2357993d3510
Autor:
Huy Quí Vinh Nguyen, Jaak Nerut, Heili Kasuk, Thomas Thomberg, Tavo Romann, Jaan Aruväli, Marian Külaviir, Peeter Paaver, Zdravko Kochovski, Eneli Härk, Enn Lust
Publikováno v:
ECS Advances, Vol 3, Iss 2, p 024505 (2024)
The influence of different synthesis parameters on CeO _2 and Pt nanoparticle (NP) deposition on Ketjenblack carbon (C(KB)) was examined. The Pt NP diameter (3.1–4.1 nm) was not influenced by CeO _2 synthesis parameters. The CeO _2 NPs synthesized
Externí odkaz:
https://doaj.org/article/d662425c7251478ca068c67d2d47de9b
Autor:
Egert Möller, Rasmus Palm, Kenneth Tuul, Meelis Härmas, Miriam Koppel, Jaan Aruväli, Marian Külaviir, Enn Lust
Publikováno v:
Nanomaterials, Vol 13, Iss 21, p 2883 (2023)
Highly microporous adsorbents have been under considerable scrutiny for efficient adsorptive storage of H2. Of specific interest are sustainable, chemically activated, microporous carbon adsorbents, especially from renewable and organic precursor mat
Externí odkaz:
https://doaj.org/article/f7d4ecb2484d45449252394a95c31d4e
Autor:
Yogesh Kumar, Srinu Akula, Elo Kibena-Põldsepp, Maike Käärik, Jekaterina Kozlova, Arvo Kikas, Jaan Aruväli, Vambola Kisand, Jaan Leis, Aile Tamm, Kaido Tammeveski
Publikováno v:
Materials, Vol 16, Iss 14, p 5105 (2023)
Rechargeable zinc-air batteries (RZAB) have gained significant attention as potential energy storage devices due to their high energy density, cost-effectiveness, and to the fact that they are environmentally safe. However, the practical implementati
Externí odkaz:
https://doaj.org/article/881d0a1ee40341d89e0fde1b1011eab8
Autor:
Kaur Muuli, Rohit Kumar, Marek Mooste, Viktoria Gudkova, Alexey Treshchalov, Helle-Mai Piirsoo, Arvo Kikas, Jaan Aruväli, Vambola Kisand, Aile Tamm, Andres Krumme, Prabu Moni, Michaela Wilhelm, Kaido Tammeveski
Publikováno v:
Materials, Vol 16, Iss 13, p 4626 (2023)
The goal of achieving the large-scale production of zero-emission vehicles by 2035 will create high expectations for electric vehicle (EV) development and availability. Currently, a major problem is the lack of suitable batteries and battery material
Externí odkaz:
https://doaj.org/article/7996691851e746549c04d5f9dd9e6fca
Publikováno v:
International Journal of Hydrogen Energy. 48:19646-19656
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::73de513911a8f558b97e16ffb84daab5
https://doi.org/10.1016/j.ijhydene.2023.01.358
https://doi.org/10.1016/j.ijhydene.2023.01.358