Zobrazeno 1 - 10
of 11
pro vyhledávání: '"Rouven Scheffler"'
Autor:
Jens K. Nørskov, A. Speidel, Joel B. Varley, Venkatasubramanian Viswanathan, Rouven Scheffler, Alan C. Luntz, Johannes Voss
Publikováno v:
The Journal of Physical Chemistry Letters. 4:3494-3499
We describe Li–O2 discharge experiments in a bulk electrolysis cell as a function of current density and temperature. In combination with a simple model, these imply that charge transport through Li2O2 in Li–O2 batteries at practical current dens
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5ebdcae7598d69a89b8b5b91da0542c6
https://doi.org/10.1021/jz401926f
https://doi.org/10.1021/jz401926f
Publikováno v:
The Journal of Physical Chemistry C. 116:23897-23905
Quantitative differential electrochemical mass spectrometry and cyclic voltammetry have been combined to probe possible mechanisms and the kinetic overpotentials, responsible for discharge and charge in a Li–O2 battery, using C as the cathode and a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a755f32f87d5894923f26f449d686e49
https://doi.org/10.1021/jp306680f
https://doi.org/10.1021/jp306680f
Autor:
K. Schröder, Jürgen Caro, Michael Wark, H. Steffen, Gerold Dr. Hübner, Frank Seyfried, Rouven Scheffler
Publikováno v:
Chemie Ingenieur Technik. 81:1911-1919
Fur Anwendungen in Polymerelektrolytbrennstoffzellen haben Polybenzimidazol (PBI)-Membranen den Nachteil, dass sie eine hohe Beladung mit dem Elektrolyten Phosphorsaure sowohl fur eine ausreichende Protonenleitfahigkeit als auch fur den Protonentrans
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9b734c43620bf09cfc13b6a371a139df
https://doi.org/10.1002/cite.200900095
https://doi.org/10.1002/cite.200900095
Publikováno v:
Chemie Ingenieur Technik. 80:307-315
Als Alternative zu Nafion als Niedertemperatur-Polymerelektrolytmembran wurde phosphorsaureimpragniertes Polybenzimidazol als Hochtemperatur-Polymerelektrolytmembran fur eine H2/Luft-Brennstoffzelle mit einer Arbeitstemperatur von 160 °C erfolgreich
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cd9fe252b0fb6b2113482d120bf7b141
https://doi.org/10.1002/cite.200700082
https://doi.org/10.1002/cite.200700082
Autor:
Michael Wark, Gerold Dr. Hübner, Jürgen Caro, Roland Marschall, Andreas Huth, Rouven Scheffler
Publikováno v:
Chemie Ingenieur Technik. 79:2035-2041
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::47abd5285ddd85eada7f2fa62a1549e0
https://doi.org/10.1002/cite.200700079
https://doi.org/10.1002/cite.200700079
Publikováno v:
Chemie Ingenieur Technik. 79:1175-1182
Ziel der Arbeit ist die Praparation und Evaluation neuer Nafion®-basierter Hybridmaterialien als Protonen leitende Membran fur Brennstoffzellen. Bei moglichst geringer Befeuchtung mit Wasserdampf soll im Temperaturbereich von 120 bis 130 °C eine ho
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9dacf0361285f249caf59843fa571dbe
https://doi.org/10.1002/cite.200700013
https://doi.org/10.1002/cite.200700013
Autor:
Robert M. Shelby, Alan C. Luntz, Mark H. Sherwood, Rouven Scheffler, Donald S. Bethune, A. Speidel, Bryan D. McCloskey, Trevor A. Mori
Publikováno v:
The journal of physical chemistry letters. 3(20)
Quantitative differential electrochemical mass spectrometry (DEMS) is used to measure the Coulombic efficiency of discharge and charge [(e(-)/O2)dis and (e(-)/O2)chg] and chemical rechargeability (characterized by the O2 recovery efficiency, OER/ORR)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::122bd6d2c88882bddc97c9eeb7522e16
https://pubmed.ncbi.nlm.nih.gov/26292247
https://pubmed.ncbi.nlm.nih.gov/26292247
Autor:
Rouven Scheffler, Alan C. Luntz, Venkatasubramanian Viswanathan, Jens S. Hummelshøj, D. C. Miller, Bryan D. McCloskey, A. Speidel, Jens K. Nørskov
Publikováno v:
The journal of physical chemistry letters. 3(8)
We use XPS and isotope labeling coupled with differential electrochemical mass spectrometry (DEMS) to show that small amounts of carbonates formed during discharge and charge of Li-O2 cells in ether electrolytes originate from reaction of Li2O2 (or L
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d15854e7f7d85ce33f733ad9bd9e156d
https://pubmed.ncbi.nlm.nih.gov/26286562
https://pubmed.ncbi.nlm.nih.gov/26286562
Autor:
Alan C. Luntz, Sanketh R. Gowda, Venkatasubramanian Viswanathan, Rouven Scheffler, A. Speidel, Jens K. Nørskov
Publikováno v:
The journal of physical chemistry letters. 4(4)
We report the current dependence of the fundamental kinetic overpotentials for Li-O2 discharge and charge (Tafel plots) that define the optimal cycle efficiency in a Li-air battery. Comparison of the unusual experimental Tafel plots obtained in a bul
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cca8454640053fab706bf2f4367d7bd3
https://pubmed.ncbi.nlm.nih.gov/26281865
https://pubmed.ncbi.nlm.nih.gov/26281865
Autor:
Donald S. Bethune, Alan C. Luntz, Robert M. Shelby, A. Speidel, Bryan D. McCloskey, Rouven Scheffler
Publikováno v:
Journal of the American Chemical Society. 133(45)
Heterogeneous electrocatalysis has become a focal point in rechargeable Li-air battery research to reduce overpotentials in both the oxygen reduction (discharge) and especially oxygen evolution (charge) reactions. In this study, we show that past rep
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7f2e24a4591794f72f249c8a184763a2
https://pubmed.ncbi.nlm.nih.gov/21995529
https://pubmed.ncbi.nlm.nih.gov/21995529