Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Joakim Ekspong"'
Autor:
Joakim Ekspong, Thomas Wågberg
Publikováno v:
Materials, Vol 12, Iss 13, p 2128 (2019)
For a hydrogen economy to be viable, clean and economical hydrogen production methods are vital. Electrolysis of water is a promising hydrogen production technique with zero emissions, but suffer from relatively high production costs. In order to mak
Externí odkaz:
https://doaj.org/article/2d4f7ab4487a4567b757b0fde5efd79c
Solar-Driven Water Splitting at 13.8% Solar-to-Hydrogen Efficiency by an Earth-Abundant Electrolyzer
Autor:
Wai Ling Kwong, Jonas Stenberg, Jinbao Zhang, Christian Larsen, Ludvig Edman, Jia Wang, Erik M. J. Johansson, Joakim Ekspong, Johannes Messinger, Thomas Wågberg
Publikováno v:
ACS Sustainable Chemistry & Engineering. 9:14070-14078
We present the synthesis and characterization of an efficient and low cost solar-driven electrolyzer consisting of Earth-abundant materials. The trimetallic NiFeMo electrocatalyst takes the shape of nanometer-sized flakes anchored to a fully carbon-b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ce911de7a3a1a419d894a1d83484cf7c
https://doi.org/10.1021/acssuschemeng.1c03565
https://doi.org/10.1021/acssuschemeng.1c03565
Publikováno v:
RSC Advances. 10:34323-34332
The high catalytic activity of cobalt-doped MoS2 (Co–MoS2) observed in several chemical reactions such as hydrogen evolution and hydrodesulfurization, among others, is mainly attributed to the formation of the CoMoS phase, in which Co occupies the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8fc29b157ddcda7d427503ccb38cfa11
https://doi.org/10.1039/d0ra05560c
https://doi.org/10.1039/d0ra05560c
Autor:
Sebastian Ekeroth, Joakim Ekspong, Dimitrios K. Perivoliotis, Sachin Sharma, Robert Boyd, Nils Brenning, Eduardo Gracia-Espino, Ludvig Edman, Ulf Helmersson, Thomas Wågberg
The hydrogen evolution reaction (HER) is a key process in electrochemical water splitting. To lower the cost and environmental impact of this process, it is highly motivated to develop electrocatalysts with low or no content of noble metals. Here, we
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::838fe7301216504e8bfc6bec8584cdb3
http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-182020
http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-182020
Publikováno v:
RSC advances. 10(56)
The high catalytic activity of cobalt-doped MoS
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::059c3dff4b2b2740939974b969fca063
https://pubmed.ncbi.nlm.nih.gov/35519031
https://pubmed.ncbi.nlm.nih.gov/35519031
Autor:
Eduardo Gracia-Espino, Thomas Wågberg, Per Persson, Ingemar Persson, Hamid Reza Barzegar, Robin Sandström, Joakim Ekspong, Alagappan Annamalai
We show how structurally ordered L1(0) face-centered tetragonal FePt nanoparticles are produced by a solid-state microwave-assisted synthesis method. The structural phase as well as the incorporated Fe into the nanoparticles is confirmed by X-ray dif
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::21e437f69be677ea4f8173d114703088
http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-158495
http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-158495
In this study, we present a new comprehensive methodology to quantify the catalytic activity of heterogeneous materials for the hydrogen evolution reaction (HER) using ab initio simulations. The model is composed of two parts. First, the equilibrium
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d57f4ffc9f5025a8077d22673d1db95d
http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-176146
http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-176146
Publikováno v:
Carbon. 137:349-357
Introducing heteroatoms and creating structural defects on graphene is a common and rather successful strategy to transform its inert basal plane into an efficient metal-free electrocatalyst for ox ...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5c072c831f13917cd5e0135c773027bd
https://doi.org/10.1016/j.carbon.2018.05.050
https://doi.org/10.1016/j.carbon.2018.05.050
Autor:
Ulf Helmersson, Nils Brenning, E. Peter Münger, Sebastian Ekeroth, Joakim Ekspong, Thomas Wågberg, Robert D. Boyd, Ludvig Edman
Publikováno v:
Nano Letters. 18:3132-3137
Tunable nanostructures that feature a high surface area are firmly attached to a conducting substrate and can be fabricated efficiently over significant areas, which are of interest for a wide variety of applications in, for instance, energy storage
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::84184a11b9bdc99167b18f1505e288c8
https://doi.org/10.1021/acs.nanolett.8b00718
https://doi.org/10.1021/acs.nanolett.8b00718
Autor:
Thomas Wågberg, Joakim Ekspong
Publikováno v:
Materials
Volume 12
Issue 13
Materials, Vol 12, Iss 13, p 2128 (2019)
Volume 12
Issue 13
Materials, Vol 12, Iss 13, p 2128 (2019)
For a hydrogen economy to be viable, clean and economical hydrogen production methods are vital. Electrolysis of water is a promising hydrogen production technique with zero emissions, but suffer from relatively high production costs. In order to mak
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9a3950ec1bd548697afc01ff86e1e498
http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-162337
http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-162337