Unit:
Κατεύθυνση Ανόργανη Χημεία και Εφαρμογές της στη ΒιομηχανίαLibrary of the School of Science
Supervisors info:
Χ. Α. ΜΗΤΣΟΠΟΥΛΟΥ, Καθηγήτρια, Χημείας, Εθνικόν και Καποδιστριακό Πανεπιστήμιο Αθηνών
Original Title:
Σύνθεση και μελέτη θειολικών συμπλόκων του Νικελίου(ΙΙ). Εφαρμογή τους ως καταλυτών στη Φωτοκαταλυτική διάσπαση του νερού.
Translated title:
Synthesis of thiolate complexes of Ni(II). Applying them as catalysts in photocalytic production of hydrogen.
Summary:
Hydrogen production by water splitting is the holy grail of science, being one
route to a non-fossil fuel and a potential source of clean energy. The
photocatalytic cleavage of water is a way to utilize sunlight energy. For this
purpose both photosensitizers and catalysts are required (1). Neutral metal bisdithiolene
and mixed diamine-dithiolate complexes have attracted the interest
of inorganic chemists and physicists for multiple reasons (2). In 1990’s some
bis-dithiolene (2) and tris-dithiolene (3) (4) complexes had been reported as
photosensitizers for the photocatalytic splitting of water, but they were
inefficient. On the other side the catalytic activity of these complexes has been
well documented. (5)
Herein, we present our attempts to improve the stability and the photocatalytic
properties of mixed diamine-thiolate complexes. For this purpose, we have
synthesized and characterized a series of complexes of Ni(II) with diamine and
thiolate ligands. The photocatalytic activity was tested in systems containing a
sacrificial donor (Triethanolamine), a photosensitizer (Fluorescein) and the
thiolate-nickel(II) complexes as catalysts and with about 3000 TONcat.
Main subject category:
Science
Keywords:
Hydrogen, Dithiolate complexes, Dithiolene, Nickel , Photocatalysis
Number of references:
114
