Hybrid systems of molecular ruthenium catalyst anchored on oxide films for water oxidation: Functionality of the interface

Scholz, Julius

dc.contributor.advisor	Jooß, Christian Prof. Dr.
dc.contributor.author	Scholz, Julius
dc.date.accessioned	2017-11-03T10:54:07Z
dc.date.available	2017-11-03T10:54:07Z
dc.date.issued	2017-11-03
dc.identifier.uri	http://hdl.handle.net/11858/00-1735-0000-0023-3F56-7
dc.identifier.uri	http://dx.doi.org/10.53846/goediss-6564
dc.language.iso	eng	de
dc.rights.uri	http://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subject.ddc	530	de
dc.title	Hybrid systems of molecular ruthenium catalyst anchored on oxide films for water oxidation: Functionality of the interface	de
dc.type	doctoralThesis	de
dc.contributor.referee	Jooß, Christian Prof. Dr.
dc.date.examination	2017-06-26
dc.subject.gok	Physik (PPN621336750)	de
dc.description.abstracteng	The scope of the presented thesis is the realization and detailed analysis of a hybrid system for photoelectrochemical watersplitting with La$_{0.6}$Sr$_{0.4}$MnO$_3$ (LSMO) as photoabsorber and immobilized molecular bis(bipyridyl)pyrazolate diruthenium (Ru$_2$-bbp) catalyst. As a first step towards a full functioning photochemical device, the functionality of the hybrid assembly was elucidated electrochemically since the basic requirements for a photochemical device, such as stability and band alignment need to be also fulfilled for an electrochemical cell. The results herein focused on two main parts: (I) the role of LSMO as a solid support in terms of background activity and stability involving first models for the water oxidation mechanism and strategies to tailor the stability; (II) the behavior of the Ru$_2$-bbp complex upon immobilization on a model oxide electrode including the functionality of the anchoring via acid functionalities and possible destabilization pathways. In these studies the method of rotating ring-disk electrodes (RRDE) played a key role and their advancements enabled in depth analysis on the activity and stability.	de
dc.contributor.coReferee	Schneider, Sven Prof. Dr.
dc.contributor.thirdReferee	Meyer, Franc Prof. Dr.
dc.contributor.thirdReferee	Moshnyaga, Vasily Prof. Dr.
dc.contributor.thirdReferee	Siewert, Inke Prof. Dr.
dc.contributor.thirdReferee	Wenderoth, Martin Dr.
dc.subject.eng	water oxidation	de
dc.subject.eng	artificial photosynthesis	de
dc.subject.eng	rotating ring-disk electrode	de
dc.subject.eng	manganite	de
dc.subject.eng	perovskite	de
dc.subject.eng	X-ray photoemission spectroscopy	de
dc.subject.eng	immobilization	de
dc.subject.eng	structural control	de
dc.subject.eng	stability	de
dc.identifier.urn	urn:nbn:de:gbv:7-11858/00-1735-0000-0023-3F56-7-8
dc.affiliation.institute	Fakultät für Physik	de
dc.identifier.ppn	1002724570

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