Date of download: 10/9/2017 Copyright © ASME. All rights reserved. From: Harvesting Natural Salinity Gradient Energy for Hydrogen Production Through Reverse Electrodialysis Power Generation J. Electrochem. En. Conv. Stor.. 2017;14(2):020702-020702-6. doi:10.1115/1.4035835 Figure Legend: Reverse electrodialysis system for electricity and hydrogen gas generation. Hydrogen is produced at the cathode through a proton reduction reaction.

Date of download: 10/9/2017 Copyright © ASME. All rights reserved. From: Harvesting Natural Salinity Gradient Energy for Hydrogen Production Through Reverse Electrodialysis Power Generation J. Electrochem. En. Conv. Stor.. 2017;14(2):020702-020702-6. doi:10.1115/1.4035835 Figure Legend: Area-specific resistance (ASR) of the RED stack and its components (i.e., CEM, AEM, LC solution, and HC solution) and load as a function of moles of salt permeated across IEMs: (a) five membrane pairs, (b) 10 membrane pairs, and (c) 20 membrane pairs. IEMs include CEMs and AEMs. The total indicates overall RED stack resistance. Load is held constant during each analysis (6.35, 42.89, and 130.18 Ω cm2 for 5, 10, and 20 membrane pairs).

Date of download: 10/9/2017 Copyright © ASME. All rights reserved. From: Harvesting Natural Salinity Gradient Energy for Hydrogen Production Through Reverse Electrodialysis Power Generation J. Electrochem. En. Conv. Stor.. 2017;14(2):020702-020702-6. doi:10.1115/1.4035835 Figure Legend: (a) Moles of hydrogen, nH2, produced through RED stack and current density, i, and (b) hydrogen power density, PDH2, as a function of moles of salt permeated across IEMs for 5, 10, and 20 membrane pairs

Date of download: 10/9/2017 Copyright © ASME. All rights reserved. From: Harvesting Natural Salinity Gradient Energy for Hydrogen Production Through Reverse Electrodialysis Power Generation J. Electrochem. En. Conv. Stor.. 2017;14(2):020702-020702-6. doi:10.1115/1.4035835 Figure Legend: (a) Stack voltage, ξstack, and potential difference across the external load, ξL, and (b) maximum extractable energy (Gibbs free energy), Eideal, and electrical energy, Eelectrical, as a function of moles of salt permeated across IEMs for 5, 10, and 20 membrane pairs

Date of download: 10/9/2017 Copyright © ASME. All rights reserved. From: Harvesting Natural Salinity Gradient Energy for Hydrogen Production Through Reverse Electrodialysis Power Generation J. Electrochem. En. Conv. Stor.. 2017;14(2):020702-020702-6. doi:10.1115/1.4035835 Figure Legend: (a) Hydrogen and electrical power density, PD, (b) ideal energy (Gibbs free energy), Eideal, and (c) electrical and hydrogen energy extracted through RED stack as a function of normalized time area, t, for 5, 10, and 20 membrane pairs