Seawater electrolysis is used to use energy from solar radiation

• Type: Summary of Presentation in an International Conference
• Date: 2006

Authors

José Manuel P. Silva (Author) Other; M. J. Sottomayor (Author) FCUP; M. Gabriela T. C. Ribeiro (Author) FCUP

Conference proceedings International

Title: 3rd International Conference on Hands-on Science, Science Education and Sustainable Development

Initial page: 147

3rd International Conference on Hands-on Science, Science Education and Sustainable Development

Braga, 4 a 9 de Setembro de 2006

Scientific classification

FOS: Social sciences > Educational sciences

Other information

Resumo (PT): This experiment involves seawater electrolysis, using electricity produced in a photovoltaic panel. The hydrogen produced is then used in a fuel cell, which creates an electrical output in order to move small helices. The experiment is performed using two different electrolysers. In the first, graphite electrodes are used for both anode and cathode. In this case, hydrogen is released on the cathode until magnesium hydroxide precipitates and chloride is released on the anode. The second electrolyser has a graphite cathode and an iron anode. In this case, the iron anode is progressively oxidized to its ionic form and hydrogen is released on the cathode. In both electrolysers, the hydrogen produced is used to create an electrical output through a fuel cell. This experiment demonstrates that it is possible to store energy from solar radiation in hydrogen cells for further applications.

Abstract (EN): This experiment involves seawater electrolysis, using electricity produced in a photovoltaic panel. The hydrogen produced is then used in a fuel cell, which creates an electrical output in order to move small helices. The experiment is performed using two different electrolysers. In the first, graphite electrodes are used for both anode and cathode. In this case, hydrogen is released on the cathode until magnesium hydroxide precipitates and chloride is released on the anode. The second electrolyser has a graphite cathode and an iron anode. In this case, the iron anode is progressively oxidized to its ionic form and hydrogen is released on the cathode. In both electrolysers, the hydrogen produced is used to create an electrical output through a fuel cell. This experiment demonstrates that it is possible to store energy from solar radiation in hydrogen cells for further applications.

Language: English

Type (Professor's evaluation): Scientific