Zobrazeno 1 - 10
of 262
pro vyhledávání: '"Kaido Tammeveski"'
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:
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
Autor:
Jonas Mart Linge, Heiki Erikson, Peeter Ritslaid, Arvo Kikas, Vambola Kisand, Jaan Aruväli, Jekaterina Kozlova, Aile Tamm, Ave Sarapuu, Kaido Tammeveski
Publikováno v:
Catalysts, Vol 13, Iss 6, p 976 (2023)
As energy demand increases, new energy conversion methods are also sought. In this study, two MnO2 and multiwalled carbon nanotube (MWCNT) composites were prepared and decorated with silver using magnetron sputtering, to evaluate their electrocatalyt
Externí odkaz:
https://doaj.org/article/657000403a704a8388eae694e2a6aa5e
Autor:
Kaidi Veske, Ave Sarapuu, Maike Käärik, Arvo Kikas, Vambola Kisand, Helle-Mai Piirsoo, Alexey Treshchalov, Jaan Leis, Aile Tamm, Kaido Tammeveski
Publikováno v:
Catalysts, Vol 12, Iss 5, p 568 (2022)
The development of non-precious metal electrocatalysts towards oxygen reduction reaction (ORR) is crucial for the commercialisation of polymer electrolyte fuel cells. In this work, cobalt-containing nitrogen-doped porous carbon materials were prepare
Externí odkaz:
https://doaj.org/article/953950fcd71d47f89e4173ef6e0a4012
Autor:
Jaana Lilloja, Marek Mooste, Elo Kibena-Põldsepp, Ave Sarapuu, Barr Zulevi, Arvo Kikas, Helle-Mai Piirsoo, Aile Tamm, Vambola Kisand, Steven Holdcroft, Alexey Serov, Kaido Tammeveski
Publikováno v:
Journal of Power Sources Advances, Vol 8, Iss , Pp 100052- (2021)
A novel and commercially available electrocatalyst is characterised and used as cathode catalyst in an anion-exchange membrane fuel cell (AEMFC). The catalyst material is prepared using VariPore™ method by Pajarito Powder, LLC, and as dopants iron
Externí odkaz:
https://doaj.org/article/dbf3de315d05491ea2b1ba7559144889
Autor:
Iris Palm, Elo Kibena-Põldsepp, Uno Mäeorg, Jekaterina Kozlova, Maike Käärik, Arvo Kikas, Jaan Leis, Vambola Kisand, Aile Tamm, Kaido Tammeveski
Publikováno v:
Electrochemistry Communications, Vol 125, Iss , Pp 106976- (2021)
In this study, two compounds (melamine phosphate and hexachlorocyclotriphosphazene) were used as nitrogen and phosphorus precursors to dope silicon carbide-derived carbon (SiCDC) with nitrogen and phosphorus moieties. The successful heteroatom doping
Externí odkaz:
https://doaj.org/article/9d57cf7fdebd405da2c473e035a2db04
Autor:
Kaarel Kisand, Ave Sarapuu, Arvo Kikas, Vambola Kisand, Mihkel Rähn, Alexey Treshchalov, Maike Käärik, Helle-Mai Piirsoo, Jaan Aruväli, Päärn Paiste, Jaan Leis, Väino Sammelselg, Aile Tamm, Kaido Tammeveski
Publikováno v:
Electrochemistry Communications, Vol 124, Iss , Pp 106932- (2021)
High-performance bi- and trimetallic nitrogen-doped nanocarbon catalysts for the electrochemical oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) were prepared by high-temperature pyrolysis from 5-methylresorcinol, dicyandiamide an
Externí odkaz:
https://doaj.org/article/8902425525cc4033a9868658c643b372
Autor:
Roberta Sibul, Elo Kibena-Põldsepp, Uno Mäeorg, Maido Merisalu, Arvo Kikas, Vambola Kisand, Alexey Treshchalov, Väino Sammelselg, Kaido Tammeveski
Publikováno v:
Electrochemistry Communications, Vol 109, Iss , Pp - (2019)
It is highly desirable to synthesise heteroatom-doped carbon-based materials in an environmentally friendly and simple way, which possess good electrocatalytic activity towards the oxygen reduction reaction (ORR). Therefore, in this study, we focused
Externí odkaz:
https://doaj.org/article/d043e90b7a534ad29f592316df36e966