Zobrazeno 1 - 10
of 45
pro vyhledávání: '"W. Schnurnberger"'
Dynamic modelling and simulation of a polymer membrane fuel cell including mass transport limitation
Publikováno v:
Scopus-Elsevier
The direct conversion of hydrogen into electricity by polymer membrane fuel cells (PEFC) is a promising option for future transportation and stationary energy supply systems. A model for heat and water transport in a polymer membrane fuel cell has be
Autor:
Jochen Kerres, I. Seybold, V. Schramm, W. Schnurnberger, S. Reichle, K. Hetzel, Gerhart Eigenberger
Publikováno v:
Scopus-Elsevier
In this work, microporous polymeric membranes for use as diaphragms in advanced alkaline electrolysis were produced from poly(ethersulfone)s UDEL®, RADEL R®, RADEL A® and VICTREX®, and were tested as diaphragms in an electrolyzer cell. The membra
Publikováno v:
Solid State Ionics. 77:324-330
Porous Nafion-PTFE-bonded gas-diffusion electrodes (GDEs), for use in (PEFC), were prepared by a cold rolling process. In this process, no solvents are required. The raw material for the production of these electrodes is a ternary mixture of Nafion,
Publikováno v:
Fresenius' Journal of Analytical Chemistry. 353:778-784
X-ray induced photoelectron spectroscopy (XPS) in combination with depth profiling has been used to investigate the structure and the degradation mechanism of PTFE bonded gas diffusion electrodes (GDE). The XP-spectra of these electrodes show distinc
Publikováno v:
ChemInform. 30
Electrochemically oxidized nickel and the water adsorption on NiO prepared in UHV were studied by XPS, TPD and UPS. Potassium ions are intercalated in the electrochemically oxidized nickel surface. No molecular water inserted in the electrochemically
Publikováno v:
Berichte der Bunsengesellschaft für physikalische Chemie. 97:360-362
The interaction of water vapor with clean and oxidized surfaces of polycrystalline Nickel was studied at temperatures from 300 K to 430 K. — The changes of the work function Δθ were recorded as a function of the interaction time of water with the
Electrochemically oxidized nickel and the water adsorption on NiO prepared in UHV were studied by XPS, TPD and UPS. Potassium ions are intercalated in the electrochemically oxidized nickel surface. No molecular water inserted in the electrochemically
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ee3e0d172f9a1be3a09c40a4a10fba66
https://elib.dlr.de/2388/
https://elib.dlr.de/2388/
Electrochemical impedance spectroscopy (EIS) is a very useful method for the characterization of fuel cells. The anode and cathode transfer functions have been determined independently without a reference electrode using symmetric gas supply of hydro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d3d403d8e01dfd23f71b71964c2dee97
https://elib.dlr.de/2349/
https://elib.dlr.de/2349/
Polymer electrolyte fuel cells (PEFC) comprise extended areal electrodes where the electrochemical reactions take place. These reactions lead to material conversion and are represented by an electric current. Due to the individual design of electroch
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d07777fe463e5a87d8bf6d5c0c78249f
https://elib.dlr.de/2308/
https://elib.dlr.de/2308/
It is shown experimentally that the gas produced on perforated plate electrodes in water electrolysis cells is generated in the gap between the electrode and the diaphragm. Under a minimum diameter of the perforations no gas evolution is observed; th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bee4fd0618cd7cb4b85e79d1d7b90540
https://elib.dlr.de/26054/
https://elib.dlr.de/26054/