... the corrosion potential was stable and no negative shift occurred (approximately five voltammetry cycles between −0.15 and 0.05 V in 0.2 M HNO 3 aqueous solution). The samples were rinsed with de-ionized water and alcohol, followed by drying at 60 °C for 10 h in a vacuum oven. X-ray diffraction (XRD...

... layered cathode lithium-ion battery corrosion in-situ X-ray imaging advanced materials characterization batteries In addition to exploring the NCM with varying composition, R&D efforts have also been devoted to engineering the particle morphology [ 22 – 26 ]. At present, the NCM cathode...

...Mohamed E. Mohamed; Beshier A. Abd-El-Nabey Superhydrophobic cobalt and cobalt–graphene films were fabricated on copper bipolar plates (BPPs) using potentiostatic electrodeposition to improve their corrosion resistance and surface conductivity. A scanning electron microscope (SEM) was used to study...

... reference electrode DHE PEMFC corrosion bipolar plate fuel cell Among the new technologies for energy, fuel cells, and in particular, proton exchange membrane fuel cell (PEMFC), the latter represents an attractive solution, convenient for many applications ( 1 ). However, some technical issues...

... of these contaminants on the corrosion resistance of the nitrided layer in polymer electrolyte membrane fuel cell (PEMFC) environments is not considered significant. The nitrided sample had a much higher contact resistance than the bare one and the contact resistance increased with the nitriding time. The high...

... polymer electrolyte membrane fuel cell (PEMFC) environment, and showed excellent corrosion resistance. The XPS depth profile indicated that the passive film, which formed on the plasma-nitrided steel in the PEMFC anode environment, is composed of mixed oxides and nitrides, in which chromium oxide/nitride...

... and electrochemical corrosions in the PEM fuel cell operating environment. The major goals of this research are to find proper physical vapor deposition (PVD) coating materials which would enhance surface properties by making significant improvements on corrosion resistance and electrical conductivity at a reasonable...