1. Date of download: 7/5/2016 Copyright © ASME. All rights reserved. From: Causal and Fault Trees Analysis of Proton Exchange Membrane Fuel Cell Degradation J. Fuel Cell Sci. Technol. 2015;12(5):051002-051002-8. doi:10.1115/1.4031584 Fuel cell system Figure Legend:

2. Date of download: 7/5/2016 Copyright © ASME. All rights reserved. From: Causal and Fault Trees Analysis of Proton Exchange Membrane Fuel Cell Degradation J. Fuel Cell Sci. Technol. 2015;12(5):051002-051002-8. doi:10.1115/1.4031584 Causal tree of fuel cell system Figure Legend:

3. Date of download: 7/5/2016 Copyright © ASME. All rights reserved. From: Causal and Fault Trees Analysis of Proton Exchange Membrane Fuel Cell Degradation J. Fuel Cell Sci. Technol. 2015;12(5):051002-051002-8. doi:10.1115/1.4031584 Causal tree of fuel cell system Figure Legend:

4. Date of download: 7/5/2016 Copyright © ASME. All rights reserved. From: Causal and Fault Trees Analysis of Proton Exchange Membrane Fuel Cell Degradation J. Fuel Cell Sci. Technol. 2015;12(5):051002-051002-8. doi:10.1115/1.4031584 Causal tree of membrane Figure Legend:

5. Date of download: 7/5/2016 Copyright © ASME. All rights reserved. From: Causal and Fault Trees Analysis of Proton Exchange Membrane Fuel Cell Degradation J. Fuel Cell Sci. Technol. 2015;12(5):051002-051002-8. doi:10.1115/1.4031584 Causal tree of electrode Figure Legend:

6. Date of download: 7/5/2016 Copyright © ASME. All rights reserved. From: Causal and Fault Trees Analysis of Proton Exchange Membrane Fuel Cell Degradation J. Fuel Cell Sci. Technol. 2015;12(5):051002-051002-8. doi:10.1115/1.4031584 Output characteristic of Nexa cell fuel Figure Legend:

7. Date of download: 7/5/2016 Copyright © ASME. All rights reserved. From: Causal and Fault Trees Analysis of Proton Exchange Membrane Fuel Cell Degradation J. Fuel Cell Sci. Technol. 2015;12(5):051002-051002-8. doi:10.1115/1.4031584 Fault tree analysis of the fuel cell degradation Figure Legend:

8. Date of download: 7/5/2016 Copyright © ASME. All rights reserved. From: Causal and Fault Trees Analysis of Proton Exchange Membrane Fuel Cell Degradation J. Fuel Cell Sci. Technol. 2015;12(5):051002-051002-8. doi:10.1115/1.4031584 Limit variation of r (0.43 ≤ r ≤ 0.658) Figure Legend:

9. Date of download: 7/5/2016 Copyright © ASME. All rights reserved. From: Causal and Fault Trees Analysis of Proton Exchange Membrane Fuel Cell Degradation J. Fuel Cell Sci. Technol. 2015;12(5):051002-051002-8. doi:10.1115/1.4031584 Limit variation of A (0.0291 ≤ A ≤ 0.0712) Figure Legend:

10. Date of download: 7/5/2016 Copyright © ASME. All rights reserved. From: Causal and Fault Trees Analysis of Proton Exchange Membrane Fuel Cell Degradation J. Fuel Cell Sci. Technol. 2015;12(5):051002-051002-8. doi:10.1115/1.4031584 Fault tree analysis of the deficiency presenting the limiting values Figure Legend:

11. Date of download: 7/5/2016 Copyright © ASME. All rights reserved. From: Causal and Fault Trees Analysis of Proton Exchange Membrane Fuel Cell Degradation J. Fuel Cell Sci. Technol. 2015;12(5):051002-051002-8. doi:10.1115/1.4031584 Synoptic diagram of the diagnosis system Figure Legend:

12. Date of download: 7/5/2016 Copyright © ASME. All rights reserved. From: Causal and Fault Trees Analysis of Proton Exchange Membrane Fuel Cell Degradation J. Fuel Cell Sci. Technol. 2015;12(5):051002-051002-8. doi:10.1115/1.4031584 Output characteristic of the used Nexa cell fuel Figure Legend: