Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Membrane degradation increased temperature effects

Increased temperatures have a strong correlation to some of the key degradation mechanisms. Membrane degradation due to chemical mechanisms as indicated by fluoride release rate has been shown to follow an Arrhenius relationship with temperature, with an increase of 1.8 times for a 10 °C rise. Figure 6.4 shows the relationship between temperature and the fluoride release rate as measured in the cathode and anode effluent at open-circuit voltage operation for an MEA containing DuPont Nafion 112 membrane. This trend is consistent with data reported in the Uterature, e.g. Madden et al. (2009). Sethuraman et al. (2008) showed the effect of temperature on lifetime at open-circuit voltage and found a lifetime of -500 h at 80 °C was dramatically decreased to -60 h at 100 °C and only -30 h at 120 °C (Sethuraman et al., 2008). [Pg.158]


See other pages where Membrane degradation increased temperature effects is mentioned: [Pg.36]    [Pg.277]    [Pg.252]    [Pg.1112]    [Pg.774]    [Pg.65]    [Pg.1002]    [Pg.31]    [Pg.153]    [Pg.158]    [Pg.49]    [Pg.98]    [Pg.100]    [Pg.178]    [Pg.66]    [Pg.229]    [Pg.321]    [Pg.207]    [Pg.191]    [Pg.704]    [Pg.223]    [Pg.214]    [Pg.379]    [Pg.154]    [Pg.281]    [Pg.221]    [Pg.783]    [Pg.195]    [Pg.259]    [Pg.1358]    [Pg.190]    [Pg.760]    [Pg.46]    [Pg.489]    [Pg.597]    [Pg.172]    [Pg.261]    [Pg.278]    [Pg.379]    [Pg.312]    [Pg.133]    [Pg.101]    [Pg.44]    [Pg.175]    [Pg.211]    [Pg.1073]    [Pg.187]    [Pg.248]    [Pg.322]   
See also in sourсe #XX -- [ Pg.145 ]




SEARCH



Degradability temperature

Degradation effects

Membrane degradation

Membrane effects

Membrane temperature

Temperature increase

Temperature increased

© 2024 chempedia.info