Hydrogen production with anionic dithiolene monometallic Ni(II) complexes

Postgraduate Thesis uoadl:1319326 113 Read counter

Unit:
Κατεύθυνση Ομογενής Κατάλυση
Library of the School of Science
Deposit date:
2015-05-29
Year:
2015
Author:
Μοδιανάκη Ζωή
Supervisors info:
Μητσοπούλου Χριστιάνα Καθηγήτρια (Επιβλέπουσα), Πιτσικάλης Μαρίνος Αναπλ. Καθηγητής, Παρασκευοπούλου Πατρίνα Λέκτορας
Original Title:
Παραγωγή υδρογόνου με ανιοντικά διθειολενικά μονομεταλλικά σύμπλοκα του Ni(II)
Languages:
Greek
Translated title:
Hydrogen production with anionic dithiolene monometallic Ni(II) complexes
Summary:
This work was conducted within the MSc thesis in the field of “Catalysis and
its applications”, at the Inorganic Laboratoty of the Chemistry Department of
University of Athens. It covers literature photocatalytic systems for hydrogen
production with homogeneous photocatalysis. In the experimental part our
efforts for hydrogen production by using anionic dithiolene monometallic nickel
complexes as catalysts are being reported. More specifically, the following
systems have been tested for hydrogen production (TBA)+[Ni(dpedt)(mnt)]-/
[Ru(bpy)3]Cl26H2O/MeCN /H2O /L-ascorbicacid,
(TBA)+[Ni(bdt)2]-/[Ru(bpy)3]Cl26H2O/ MeCN/ H2O/L-ascorbicacid,
(TBA)+[Ni(mnt)2]-/[Ru(bpy)3]Cl26H2O/ MeCN/ H2O/
L-ascorbicacid,(TBA)+[Ni(tdt)2]-/[Ru(bpy)3]Cl26H2O/ MeCN/ H2O/ L-ascorbicacid,
(TBA)+ [Ni(dmit)2]- / [Ru(bpy)3]Cl26H2O/ MeCN/ H2O/ L-ascorbic acid.
Furthemore, the optimization of hydrogen production rate and the mechanism of
the (TBA)+[Ni(dpedt)(mnt)]-/ [Ru(bpy)3]Cl26H2O/MeCN /H2O /L-ascorbicacid
system have also been studied. Modification parameters include: catalyst
concentration, photosensitizer concentration, acetonetrail:water ratio, pH,
temperature, solvent (DMF). During this thesis, Uv-Vis and emission
spectroscopy was used for characterization and stability studies of the system.
Keywords:
Nickel complexes, Homogeneous photocatalysis, Hydrogen production, Dithiolenes, Hydrogenases
Index:
Yes
Number of index pages:
14,19,22,110,111
Contains images:
Yes
Number of references:
119
Number of pages:
122
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