ΜΕΛΕΤΗ ΤΗΣ ΦΩΤΟΧΗΜΙΚΗΣ ΣΥΜΠΕΡΙΦΟΡΑΣ ΕΤΕΡΟΠΟΛΥΕΝΩΣΕΩΝ ΒΟΛΦΡΑΜΙΟΥ ΚΑΙ ΜΟΛΥΒΔΑΙΝΙΟΥ ΣΧΕΤΙΚΑ ΜΕ ΤΗΝ ΕΦΑΡΜΟΓΗ ΤΟΥΣ ΣΕ ΦΩΤΟΗΛΕΚΤΡΟΧΗΜΙΚΑ ΣΤΟ...

HETEROPOLYCOMPOUNDS OF THE KEGGIN-DAWSON STRUCTURES UNDERGO MULTIELECTRON PHOTOREDUCTION IN THE PRESENCE OF A GREAT VARIETY OF ORGANIC REAGENTS IN NEAR VISIBLE AND UV LIGHT WITH CONCOMITANT OXIDATION OF THE ORGANIC SPECIES, WHICH IS CONSUMED DURING THE REACTION. THE PHOTOREDUCED "LIGHT" HALF CELL AND A SIMILAR "DARK" CELL IS THE BASIS FOR THE PHOTOGALVANIC CELL STUDIED. CONNECTION BETWEEN THETWO HALF-CELLS BOTH WITH PT ELECTRODES, PRODUCES A CURRENT UNTIL EQUILIBRIUM IS ESTABLISHED. THE "DARK" CELL IS AIR OXIDIZED TO THE ORIGINAL NON REDUCED FORMWHEREAS LIGHT REGENERATES THE REDUCED "LIGHT" HALF-CELL. IT TURNED OUT THAT 1:12 HETEROPOLYTUNGSTATES WITH THE KEGGIN STRUCTURES WERE CAPABLE TO PRODUCE HYDROGEN WITH A PT CATALYST OR WITHOUT IT AS WELL. PHOTOREDUCTION PROCEEDS TO THE EXTENT THAT THE RATE OF PHOTOREDUCTION MATCHES THE BACK-REOXIDATION BY HYDROGEN.THE REDUCTION STEP AT WHICH THIS TAKES PLACE DEPENDS ON THE TUNGSTATE USED.

Grantor dc:publisher

Εθνικό Μετσόβιο Πολυτεχνείο (ΕΜΠ)

Year dc:date

1987

Author dc:creator

• Ιωαννίδης, Αθανάσιος

• HETEROPOLYCOMPOUNDS
• Hydrogen production
• Molybdenum
• PHOTOCHEMISTRY INORGANIC
• PHOTOGALVANIC CELLS
• Solar energy
• Tungsten
• Βολφράμιο
• ΕΤΕΡΟΠΟΛΥΕΝΩΣΕΙΣ
• Ηλιακή ενέργεια
• Μολυβδαίνιο
• Υδρογόνο
• ΦΩΤΟΓΑΛΒΑΝΙΚΑ ΣΤΟΙΧΕΙΑ
• ΦΩΤΟΧΗΜΕΙΑ ΑΝΟΡΓΑΝΗ
• Engineering and Technology
• Chemical Engineering
• Επιστήμες Μηχανικού και Τεχνολογία
• Επιστήμη Χημικού Μηχανικού

Language dc:language

gre

Identifier

10.12681/eadd/0552

OAI identifier oai:identifier

oai:10442/0552