Mechanistic understanding and improvement of photochemical proton reduction catalyzed by iron carbonyl complexes for sustainable hydrogen production

Steffen Fischer

doi:10.18453/rosdok_id00003292

Steffen Fischer

Mechanistic understanding and improvement of photochemical proton reduction catalyzed by iron carbonyl complexes for sustainable hydrogen production

Universität Rostock, 2021

https://doi.org/10.18453/rosdok_id00003292

Abstract: Mechanistic investigation of three homogeneous, photochemical proton reduction systems that comprise Ir or Cu based photosensitizers and iron carbonyl catalysts to produce hydrogen. Operando IR spectroscopy coupled with gas volumetry was applied supported by other spectroscopic techniques. The rate determining steps, deactivation mechanisms and catalytic key species were determined, with the latter being a self-assembling [FeFe]-hydrogenase mimic in case phosphines are present as co-catalysts in the reaction mixture. These results lead to a better understanding and improvement of the systems.

Dissertation Freier Zugang

Titel:

Mechanistic understanding and improvement of photochemical proton reduction catalyzed by iron carbonyl complexes for sustainable hydrogen production

Beteiligte Personen:

Steffen Fischer[VerfasserIn]
	0000-0002-9821-2313
	1244928968
Ralf Ludwig[AkademischeR BetreuerIn]
	136437524
	Universität Rostock, Institut für Chemie
Angelika Brückner[AkademischeR BetreuerIn]
	14344526X
	Leibniz-Institut für Katalyse e. V.

Beteiligte Körperschaften:

Universität Rostock[Grad-verleihende Institution]
	38329-6
Universität Rostock, Mathematisch-Naturwissenschaftliche Fakultät[Grad-verleihende Institution]
	2147083-2

Zusammenfassung:

Mechanistic investigation of three homogeneous, photochemical proton reduction systems that comprise Ir or Cu based photosensitizers and iron carbonyl catalysts to produce hydrogen. Operando IR spectroscopy coupled with gas volumetry was applied supported by other spectroscopic techniques. The rate determining steps, deactivation mechanisms and catalytic key species were determined, with the latter being a self-assembling [FeFe]-hydrogenase mimic in case phosphines are present as co-catalysts in the reaction mixture. These results lead to a better understanding and improvement of the systems. [Englisch]

Dokumenttyp:

Dissertation

Einrichtung:

Mathematisch-Naturwissenschaftliche Fakultät

Sprache:

Englisch

Sachgruppe der DNB:

500 Naturwissenschaften

540 Chemie

Veröffentlichung /
Entstehung:

Rostock

Rostock: Universität Rostock