Building a Three-dimensional Purbe Diagram

Gulyaev, Aleksandr; Kondrutieva, Olga; Koldaev, Victor D.; Koltsov, Vladimir B.

doi:10.1109/eiconrus49466.2020.9039304

Cited by 1 publication

(1 citation statement)

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“…The results show that the Maghemite, titanium phase (Fe 2.18 O 4 Ti 0.42 , 01-084-1595), which demonstrates the iron oxide was formed on the surface. The combination of iron oxide and titanium phases was influenced by the pH of sol precursors in accordance with the pH-potential diagram of the iron–water system at RT [ 63 ] and annealing temperature. Low carbon steel such as C45E can progressively produce passive iron oxides in precursors with high pH [ 64 ].…”

Section: Resultsmentioning

confidence: 99%

Electrochemical and Structural Property of TiSiNb TFSOC on Affordable Interconnects in Proton Exchange Membrane Fuel Cell Applications

Vallant

Ladenstein

et al. 2020

Nanomaterials

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High cost and low electrochemical stability of the interconnection in Proton Exchange Membrane Fuel Cell (PEMFC) in the presence of H2SO4 are one of the main issues hindering the commercialization of these devices. This manuscript presents the utilization of cost-effective steel in an attempt to minimize the PEMFC interconnection costs with a thin-film solid oxide coating (TFSOC) providing sufficient corrosion resistance for efficient long-term operation. Novel Ti0.50-y/2Si0.50-y/2Nby1,2O2 as TFSOC was deposited on the C45E steel as a metal interconnect utilizing a sol–gel process at various annealing temperatures. The analysis of the phase and surface morphology demonstrates that lower annealing temperatures developed nanometric crystallite size of 68 nm, more uniform structure and higher corrosion resistance. Under standard test conditions, the TFSOC demonstrated high polarization resistance (1.3 kΩ cm2) even after 720 hours (h). Electrical conductivity of the TFSOC as low as 1.4 × 10−2 (Ω m)−1 and activation energy of 0.20 eV were achieved, which helps to maintain the PEMFC output power.

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Section: Resultsmentioning

confidence: 99%