Salinity Gradient Power Driven Water Electrolysis for Hydrogen Production
The present work demonstrates an innovative system combining Reverse Electrodialysis (RED) and Alkaline Polymer Electrolyte Water Electrolysis (APEWE) for sustainable hydrogen production. The Salinity Gradient Power (SGP)-RED unit was tested with a thermally regenerative solution of NH4HCO3 in the c...
| Main Authors: | , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
AIDIC Servizi S.r.l.
2017-09-01
|
| Series: | Chemical Engineering Transactions |
| Online Access: | https://www.cetjournal.it/index.php/cet/article/view/423 |
| _version_ | 1798028588020137984 |
|---|---|
| author | R.A. Tufa D. Chanda L. Tundis J. Hnat K. Bouzek J. Veerman E. Fontananova G. Di Profio E. Curcio |
| author_facet | R.A. Tufa D. Chanda L. Tundis J. Hnat K. Bouzek J. Veerman E. Fontananova G. Di Profio E. Curcio |
| author_sort | R.A. Tufa |
| collection | DOAJ |
| description | The present work demonstrates an innovative system combining Reverse Electrodialysis (RED) and Alkaline Polymer Electrolyte Water Electrolysis (APEWE) for sustainable hydrogen production. The Salinity Gradient Power (SGP)-RED unit was tested with a thermally regenerative solution of NH4HCO3 in the concentration range of 0.15-1.5 M, whereas the water electrolysis unit equipped with quaternary ammonium functionalized anion selective membrane, Ni anode modified with Platinum Group Metal (PGM)-free electrocatalyst, Ni cathode modified with an electrochemically Reduced Graphene Oxide (RGO) was investigated at a varying temperature (50 - 80 °C). The integrated RED-APEWE system reached a maximum hydrogen production rate of 3.0x10-3 mol H2/h per cm2 of electrode surface area. Owing to the use of the thermally regenerative NH4HCO3 solution, this work presents a profound basis to design a system allowing the conversion of low-grade waste heat into electricity in a closed loop with simultaneous production of hydrogen using salinity gradient energy. |
| first_indexed | 2024-04-11T19:11:30Z |
| format | Article |
| id | doaj.art-227ddd3ba4ba4bd594335ea3dd992dfc |
| institution | Directory Open Access Journal |
| issn | 2283-9216 |
| language | English |
| last_indexed | 2024-04-11T19:11:30Z |
| publishDate | 2017-09-01 |
| publisher | AIDIC Servizi S.r.l. |
| record_format | Article |
| series | Chemical Engineering Transactions |
| spelling | doaj.art-227ddd3ba4ba4bd594335ea3dd992dfc2022-12-22T04:07:36ZengAIDIC Servizi S.r.l.Chemical Engineering Transactions2283-92162017-09-016010.3303/CET1760048Salinity Gradient Power Driven Water Electrolysis for Hydrogen ProductionR.A. TufaD. ChandaL. TundisJ. HnatK. BouzekJ. VeermanE. FontananovaG. Di ProfioE. CurcioThe present work demonstrates an innovative system combining Reverse Electrodialysis (RED) and Alkaline Polymer Electrolyte Water Electrolysis (APEWE) for sustainable hydrogen production. The Salinity Gradient Power (SGP)-RED unit was tested with a thermally regenerative solution of NH4HCO3 in the concentration range of 0.15-1.5 M, whereas the water electrolysis unit equipped with quaternary ammonium functionalized anion selective membrane, Ni anode modified with Platinum Group Metal (PGM)-free electrocatalyst, Ni cathode modified with an electrochemically Reduced Graphene Oxide (RGO) was investigated at a varying temperature (50 - 80 °C). The integrated RED-APEWE system reached a maximum hydrogen production rate of 3.0x10-3 mol H2/h per cm2 of electrode surface area. Owing to the use of the thermally regenerative NH4HCO3 solution, this work presents a profound basis to design a system allowing the conversion of low-grade waste heat into electricity in a closed loop with simultaneous production of hydrogen using salinity gradient energy.https://www.cetjournal.it/index.php/cet/article/view/423 |
| spellingShingle | R.A. Tufa D. Chanda L. Tundis J. Hnat K. Bouzek J. Veerman E. Fontananova G. Di Profio E. Curcio Salinity Gradient Power Driven Water Electrolysis for Hydrogen Production Chemical Engineering Transactions |
| title | Salinity Gradient Power Driven Water Electrolysis for Hydrogen Production |
| title_full | Salinity Gradient Power Driven Water Electrolysis for Hydrogen Production |
| title_fullStr | Salinity Gradient Power Driven Water Electrolysis for Hydrogen Production |
| title_full_unstemmed | Salinity Gradient Power Driven Water Electrolysis for Hydrogen Production |
| title_short | Salinity Gradient Power Driven Water Electrolysis for Hydrogen Production |
| title_sort | salinity gradient power driven water electrolysis for hydrogen production |
| url | https://www.cetjournal.it/index.php/cet/article/view/423 |
| work_keys_str_mv | AT ratufa salinitygradientpowerdrivenwaterelectrolysisforhydrogenproduction AT dchanda salinitygradientpowerdrivenwaterelectrolysisforhydrogenproduction AT ltundis salinitygradientpowerdrivenwaterelectrolysisforhydrogenproduction AT jhnat salinitygradientpowerdrivenwaterelectrolysisforhydrogenproduction AT kbouzek salinitygradientpowerdrivenwaterelectrolysisforhydrogenproduction AT jveerman salinitygradientpowerdrivenwaterelectrolysisforhydrogenproduction AT efontananova salinitygradientpowerdrivenwaterelectrolysisforhydrogenproduction AT gdiprofio salinitygradientpowerdrivenwaterelectrolysisforhydrogenproduction AT ecurcio salinitygradientpowerdrivenwaterelectrolysisforhydrogenproduction |