1 resultado para proof
em Bucknell University Digital Commons - Pensilvania - USA
Filtro por publicador
- University of Cagliari UniCA Eprints (1)
- Aberdeen University (2)
- Abertay Research Collections - Abertay University’s repository (1)
- Aberystwyth University Repository - Reino Unido (9)
- Acceda, el repositorio institucional de la Universidad de Las Palmas de Gran Canaria. España (1)
- Adam Mickiewicz University Repository (1)
- AMS Tesi di Dottorato - Alm@DL - Università di Bologna (2)
- AMS Tesi di Laurea - Alm@DL - Università di Bologna (1)
- Aquatic Commons (6)
- ArchiMeD - Elektronische Publikationen der Universität Mainz - Alemanha (1)
- Archive of European Integration (4)
- Archivo Digital para la Docencia y la Investigación - Repositorio Institucional de la Universidad del País Vasco (10)
- Aston University Research Archive (4)
- Biblioteca Digital da Produção Intelectual da Universidade de São Paulo (1)
- Biblioteca Digital de la Universidad Católica Argentina (2)
- Biblioteca Digital de Teses e Dissertações Eletrônicas da UERJ (17)
- Biblioteca Valenciana Digital - Ministerio de Educación, Cultura y Deporte - Valencia - Espanha (5)
- BORIS: Bern Open Repository and Information System - Berna - Suiça (38)
- Boston University Digital Common (17)
- Bucknell University Digital Commons - Pensilvania - USA (1)
- Bulgarian Digital Mathematics Library at IMI-BAS (3)
- CaltechTHESIS (29)
- Cambridge University Engineering Department Publications Database (42)
- CentAUR: Central Archive University of Reading - UK (13)
- Center for Jewish History Digital Collections (5)
- Chinese Academy of Sciences Institutional Repositories Grid Portal (61)
- CORA - Cork Open Research Archive - University College Cork - Ireland (5)
- Corvinus Research Archive - The institutional repository for the Corvinus University of Budapest (1)
- CUNY Academic Works (5)
- Deakin Research Online - Australia (28)
- Department of Computer Science E-Repository - King's College London, Strand, London (4)
- DI-fusion - The institutional repository of Université Libre de Bruxelles (1)
- Digital Commons - Michigan Tech (1)
- Digital Commons at Florida International University (1)
- DRUM (Digital Repository at the University of Maryland) (3)
- Duke University (12)
- eResearch Archive - Queensland Department of Agriculture; Fisheries and Forestry (12)
- eScholarship Repository - University of California (1)
- FUNDAJ - Fundação Joaquim Nabuco (1)
- Funes: Repositorio digital de documentos en Educación Matemática - Colombia (2)
- Greenwich Academic Literature Archive - UK (7)
- Harvard University (5)
- Helda - Digital Repository of University of Helsinki (38)
- Indian Institute of Science - Bangalore - Índia (142)
- Institutional Repository of Leibniz University Hannover (1)
- Instituto Politécnico de Leiria (1)
- Instituto Politécnico do Porto, Portugal (6)
- Massachusetts Institute of Technology (8)
- Ministerio de Cultura, Spain (1)
- National Center for Biotechnology Information - NCBI (3)
- Nottingham eTheses (7)
- Open University Netherlands (1)
- Plymouth Marine Science Electronic Archive (PlyMSEA) (4)
- Portal de Revistas Científicas Complutenses - Espanha (2)
- QSpace: Queen's University - Canada (3)
- QUB Research Portal - Research Directory and Institutional Repository for Queen's University Belfast (94)
- Queensland University of Technology - ePrints Archive (196)
- Repositório Científico do Instituto Politécnico de Lisboa - Portugal (8)
- Repositório digital da Fundação Getúlio Vargas - FGV (1)
- Repositório Institucional da Universidade de Aveiro - Portugal (14)
- Repositório Institucional da Universidade Federal de São Paulo - UNIFESP (1)
- Repositório Institucional UNESP - Universidade Estadual Paulista "Julio de Mesquita Filho" (4)
- Research Open Access Repository of the University of East London. (2)
- SAPIENTIA - Universidade do Algarve - Portugal (1)
- Universidad Politécnica de Madrid (1)
- Universidade de Lisboa - Repositório Aberto (4)
- Universitätsbibliothek Kassel, Universität Kassel, Germany (2)
- Université de Lausanne, Switzerland (4)
- Université de Montréal (1)
- Université de Montréal, Canada (5)
- University of Canberra Research Repository - Australia (1)
- University of Michigan (38)
- University of Queensland eSpace - Australia (11)
- University of Washington (1)
- WestminsterResearch - UK (4)
- Worcester Research and Publications - Worcester Research and Publications - UK (1)
Resumo:
A new concept for a solar thermal electrolytic process was developed for the production of H-2 from water. A metal oxide is reduced to a lower oxidation state in air with concentrated solar energy. The reduced oxide is then used either as an anode or solute for the electrolytic production of H-2 in either an aqueous acid or base solution. The presence of the reduced metal oxide as part of the electrolytic cell decreases the potential required for water electrolysis below the ideal 1.23 V required when H-2 and O-2 evolve at 1 bar and 298 K. During electrolysis, H-2 evolves at the cathode at 1 bar while the reduced metal oxide is returned to its original oxidation state, thus completing the H-2 production cycle. Ideal sunlight-to-hydrogen thermal efficiencies were established for three oxide systems: Fe2O3-Fe3O4, Co3O4-CoO, and Mn2O3-Mn3O4. The ideal efficiencies that include radiation heat loss are as high or higher than corresponding ideal values reported in the solar thermal chemistry literature. An exploratory experimental study for the iron oxide system confirmed that the electrolytic and thermal reduction steps occur in a laboratory scale environment.