Guidelines to Develop Efficient Photocatalysts for Water Splitting

Handle URI:
http://hdl.handle.net/10754/604354
Title:
Guidelines to Develop Efficient Photocatalysts for Water Splitting
Authors:
Garcia Esparza, Angel T. ( 0000-0002-4884-171X )
Abstract:
Photocatalytic overall water splitting is the only viable solar-to-fuel conversion technology. The research discloses an investigation process wherein by dissecting the photocatalytic water splitting device, electrocatalysts, and semiconductor photocatalysts can be independently studied, developed and optimized. The assumption of perfect catalysts leads to the realization that semiconductors are the limiting factor in photocatalysis. This dissertation presents a guideline for efficient photocatalysis using semiconductor particles developed from idealized theoretical simulations. No perfect catalysts exist; then the discussion focus on the development of efficient non-noble metal electrocatalysts for hydrogen evolution from water reduction. Tungsten carbide (WC) is selective for the catalysis of hydrogen without the introduction of the reverse reaction of water formation, which is critical to achieving photocatalytic overall water splitting as demonstrated in this work. Finally, photoelectrochemistry is used to characterize thoroughly Cu-based p-type semiconductors with potential for large-scale manufacture. Artificial photosynthesis may be achieved by following the recommendations herein presented.
Advisors:
Takanabe, Kazuhiro ( 0000-0001-5374-9451 )
Committee Member:
Eddaoudi, Mohamed ( 0000-0003-1916-9837 ) ; Bakr, Osman ( 0000-0002-3428-1002 ) ; Kudo, Akihiko
KAUST Department:
Physical Sciences and Engineering (PSE) Division; Chemical Science Program
Program:
Chemical Sciences
Issue Date:
3-Apr-2016
Type:
Dissertation
Appears in Collections:
Dissertations; Physical Sciences and Engineering (PSE) Division; Chemical Science Program

Full metadata record

DC FieldValue Language
dc.contributor.advisorTakanabe, Kazuhiroen
dc.contributor.authorGarcia Esparza, Angel T.en
dc.date.accessioned2016-04-04T07:19:17Zen
dc.date.available2016-04-04T07:19:17Zen
dc.date.issued2016-04-03en
dc.identifier.urihttp://hdl.handle.net/10754/604354en
dc.description.abstractPhotocatalytic overall water splitting is the only viable solar-to-fuel conversion technology. The research discloses an investigation process wherein by dissecting the photocatalytic water splitting device, electrocatalysts, and semiconductor photocatalysts can be independently studied, developed and optimized. The assumption of perfect catalysts leads to the realization that semiconductors are the limiting factor in photocatalysis. This dissertation presents a guideline for efficient photocatalysis using semiconductor particles developed from idealized theoretical simulations. No perfect catalysts exist; then the discussion focus on the development of efficient non-noble metal electrocatalysts for hydrogen evolution from water reduction. Tungsten carbide (WC) is selective for the catalysis of hydrogen without the introduction of the reverse reaction of water formation, which is critical to achieving photocatalytic overall water splitting as demonstrated in this work. Finally, photoelectrochemistry is used to characterize thoroughly Cu-based p-type semiconductors with potential for large-scale manufacture. Artificial photosynthesis may be achieved by following the recommendations herein presented.en
dc.language.isoenen
dc.subjectPhotocatalystsen
dc.subjectWater Splittingen
dc.subjectArtificial Photosynthesisen
dc.subjectSolar Energyen
dc.subjectElectrocatalysts,en
dc.subjectPhotoelectrochemistryen
dc.titleGuidelines to Develop Efficient Photocatalysts for Water Splittingen
dc.typeDissertationen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.contributor.departmentChemical Science Programen
thesis.degree.grantorKing Abdullah University of Science and Technologyen_GB
dc.contributor.committeememberEddaoudi, Mohameden
dc.contributor.committeememberBakr, Osmanen
dc.contributor.committeememberKudo, Akihikoen
thesis.degree.disciplineChemical Sciencesen
thesis.degree.nameDoctor of Philosophyen
dc.person.id101852en
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