Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Peter Dudenas"'
Autor:
Bryan D. McCloskey, Ahmet Kusoglu, Xunkai Chen, Peter Dudenas, Adam Z. Weber, Ashley Bird, Sarah A. Berlinger, Guillaume Freychet
Publikováno v:
ACS Applied Polymer Materials. 2:5824-5834
Perfluorosulfonic acid (PFSA) ionomers are an important class of materials that many electrochemical devices rely on as their ion-conducting electrolyte. Often, PFSA films are prepared through solu...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::39a7eb1f7d84977d502bc7b40e96c5fc
https://doi.org/10.1021/acsapm.0c01076
https://doi.org/10.1021/acsapm.0c01076
Autor:
Timothy J. Fuller, Nagappan Ramaswamy, Nancy Kariuki, Deborah J. Myers, Roland J. Koestner, Swami Kumaraguru, Wenbin Gu, Peter Dudenas, Ahmet Kusoglu
Publikováno v:
Journal of The Electrochemical Society, vol 168, iss 2
Cell voltage at high current densities (HCD) of an operating proton-exchange membrane fuel cell (PEMFC) suffers from losses due to the local-O2 and bulk-H+ transport resistances in the cathode catalyst layer (CCL). Particularly, the interaction of pe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::843bef0ad025f463db729854bc023ba5
https://escholarship.org/uc/item/26b8q2gw
https://escholarship.org/uc/item/26b8q2gw
Dynamic Emergence of Nanostructure and Transport Properties in Perfluorinated Sulfonic Acid Ionomers
Autor:
Peter Dudenas, Miguel A. Modestino, Ahmet Kusoglu, Adlai Katzenberg, Yoshiyuki Okamoto, Debdyuti Mukherjee
Limitations in fuel cell electrode performance have motivated the development of ion-conducting binders (ionomers) with high gas permeability. Such ionomers have been achieved by copolymerization of perfluorinated sulfonic acid (PFSA) monomers with b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::12c94ff02a8439fc37abc06be74d9672
https://doi.org/10.26434/chemrxiv.12302693.v1
https://doi.org/10.26434/chemrxiv.12302693.v1
Publikováno v:
Tesfaye, M; MacDonald, AN; Dudenas, PJ; Kusoglu, A; & Weber, AZ. (2018). Exploring substrate/ionomer interaction under oxidizing and reducing environments. Electrochemistry Communications, 87, 86-90. doi: 10.1016/j.elecom.2018.01.004. Lawrence Berkeley National Laboratory: Retrieved from: http://www.escholarship.org/uc/item/91r8q87z
Electrochemistry Communications, Vol 87, Iss, Pp 86-90 (2018)
Electrochemistry Communications, Vol 87, Iss, Pp 86-90 (2018)
Author(s): Tesfaye, M; MacDonald, AN; Dudenas, PJ; Kusoglu, A; Weber, AZ | Abstract: Local gas transport limitation attributed to the ionomer thin-film in the catalyst layer is a major deterrent to widespread commercialization of polymer-electrolyte
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6d18d54ceab4d48b633f7191ffe3eb7e
https://doi.org/10.1016/j.elecom.2018.01.004
https://doi.org/10.1016/j.elecom.2018.01.004
Publikováno v:
ECS Meeting Abstracts. :1127-1127
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::480740cbf80793187ce0b2ef8686a827
https://doi.org/10.1149/ma2021-02381127mtgabs
https://doi.org/10.1149/ma2021-02381127mtgabs
Grazing incidence x-ray scattering provides nanostructural information for thin film samples, but single images generally do not provide information on film thickness or the full complex index of refraction. Additionally, for thin films that possess
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::773ab3ddaf2530854f9fb5f51f0eaec0
http://arxiv.org/abs/1907.12217
http://arxiv.org/abs/1907.12217
Publikováno v:
ECS Transactions. 75:643-650
Author(s): Dudenas, P; Kusoglu, A; Hexemer, A; Weber, A | Abstract: An overview of GISAXS analysis for ionomer thin films is presented. Experimental procedures to prepare and measure thin films using GISAXS is described. Typical features of ionomer s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d330201b4036acbc8c69f01a7cd1c873
https://doi.org/10.1149/07514.0643ecst
https://doi.org/10.1149/07514.0643ecst
Publikováno v:
ECS Meeting Abstracts. :2260-2260
Perfluorosulfonic-acid (PFSA) ionomers are a critical part of proton-exchange-membrane (PEM) fuel-cell catalyst layers (CLs). They serve both to bind the catalyst particles together, lending mechanical support, and provide pathways for ion transport.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::912005892a2569edf7739c63680cd42c
https://doi.org/10.1149/ma2020-02352260mtgabs
https://doi.org/10.1149/ma2020-02352260mtgabs
Autor:
Soenke Seifert, Bryan S. Pivovar, Peter Dudenas, Ashutosh G. Divekar, Nora Catherine Buggy, Ahmet Kusoglu, Andrew M. Herring
Publikováno v:
ECS Meeting Abstracts. :1655-1655
Perfluorinated anion exchange membranes are promising materials for alkaline fuel cell applications. Our previous work indicates they have high conductivity of >100 mS/cm at 80ᵒC and 95%RH.(1) They have also displayed good fuel cell performance of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2359983f9b42a5638869ca072cbceafa
https://doi.org/10.1149/ma2019-02/36/1655
https://doi.org/10.1149/ma2019-02/36/1655
Publikováno v:
ECS Meeting Abstracts. :1448-1448
Ion-conductive polymers (ionomers) have been widely used as the solid-electrolyte in energy conversion devices, such as polymer-electrolyte fuel cells (PEFCs) fuel cells, redox flow batteries and water-splitting devices. Ionomers, such as perfluorosu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6bcc265812c66ae64f92189de5d7e9bb
https://doi.org/10.1149/ma2018-02/43/1448
https://doi.org/10.1149/ma2018-02/43/1448