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Fundamental Aspects of Photocatalysis and Photoelectrochemistry / Basic Research Instrumentation for Functional Characterization

Titel Englisch Fundamental Aspects of Photocatalysis and Photoelectrochemistry / Basic Research Instrumentation for Functional Characterization
Gesuchsteller/in Braun Artur
Nummer 121306
Förderungsinstrument R'EQUIP
Forschungseinrichtung Labor für Hochleistungskeramik EMPA
Hochschule Eidg. Material und Prüfungsanstalt - EMPA
Hauptdisziplin Physikalische Chemie
Beginn/Ende 01.07.2008 - 30.06.2009
Bewilligter Betrag 96'227.00
Alle Daten anzeigen

Alle Disziplinen (2)

Disziplin
Physikalische Chemie
Materialwissenschaften

Keywords (9)

Photoelectrochemistry, Photocatalysis, Solar hydrogen, Waste water treatment, Solid liquid interface, Nanoparticles, Solid state, hydrogen generation, materials characterization

Lay Summary (Englisch)

Lead
Lay summary

Basic instrumentation for the functional characterization of seminconductor materials for photoelectrochemical and photocatalytical applications, such as waste water treatment and solar hydrogen generation by photoelectrochemical cells, has been purchased with the SNF funds by the Empa Laboratory for High Performance Ceramics,

The VoltaLab80 electrochemical test station, together with a solar simulator, is currently being used to record photocurrent data, cyclic voltamograms and electrochemical impedance spectra from thin films with photoelectrochemical properties. Two PhD students, two scientists and several undergraduate students have been using this equipment so far, funded by SNF, BfE, EU, and Empa.

The monochromatic light source has been complemented by three additional instruments built by staff and students or trainees at Empa's Laboratory for Functional Polymers and Laboratory for Reliability and Electronics, with funds from Empa. In particular have they built 1) a light scattering instrument that permits to record angle dependent and wavelength dependent scattering curves; this method is applied to measure organic solar cells and understand the influence of disorder on the scattering properties; 2) a photoconductivity instrument to measure perovskite based electrode thin films, 3) a set-up that allows to measure the incident photon to current efficiency of our ceramic PEC electrodes; latter one is being operated now by our new SNF PhD student.

For the spatially resolving spectrograph we are currently looking for a confocal microscope to make it ready to characterize solar cells at the device level.

The gas chromatograph is used to help study the decomposition (or stability!) of organics on photocatalysts. We are currently exploring the possibilities to use that GC also for anode chemistry studies on our ceramic fuel cells.

Direktlink auf Lay Summary Letzte Aktualisierung: 21.02.2013

Verantw. Gesuchsteller/in und weitere Gesuchstellende

Publikationen

Publikation
Evolution of structural properties of iron oxide nano particles during temperature treatment from 250 degrees C-900 degrees C: X-ray diffraction and Fe K-shell pre-edge X-ray absorption study
Bora DK, Braun A, Erat S, Safonova O, Graule T, Constable EC (2012), Evolution of structural properties of iron oxide nano particles during temperature treatment from 250 degrees C-900 degrees C: X-ray diffraction and Fe K-shell pre-edge X-ray absorption study, in CURRENT APPLIED PHYSICS, 12(3), 817-825.
Functionalization of Nanostructured Hematite Thin-Film Electrodes with the Light-Harvesting Membrane Protein C-Phycocyanin Yields an Enhanced Photocurrent
Bora DK, Rozhkova EA, Schrantz K, Wyss PP, Braun A, Graule T, Constable EC (2012), Functionalization of Nanostructured Hematite Thin-Film Electrodes with the Light-Harvesting Membrane Protein C-Phycocyanin Yields an Enhanced Photocurrent, in ADVANCED FUNCTIONAL MATERIALS, 22(3), 490-502.
Hydrothermal Treatment of a Hematite Film Leads to Highly Oriented Faceted Nanostructures with Enhanced Photocurrents
Bora DK, Braun A, Erni R, Fortunato G, Graule T, Constable EC (2011), Hydrothermal Treatment of a Hematite Film Leads to Highly Oriented Faceted Nanostructures with Enhanced Photocurrents, in CHEMISTRY OF MATERIALS, 23(8), 2051-2061.
Evolution of an Oxygen Near-Edge X-ray Absorption Fine Structure Transition in the Upper Hubbard Band in alpha-Fe2O3 upon Electrochemical Oxidation
Bora DK, Braun A, Erat S, Ariffin AK, Lohnert R, Sivula K, Topfer J, Gratzel M, Manzke R, Graule T, Constable EC (2011), Evolution of an Oxygen Near-Edge X-ray Absorption Fine Structure Transition in the Upper Hubbard Band in alpha-Fe2O3 upon Electrochemical Oxidation, in JOURNAL OF PHYSICAL CHEMISTRY C, 115(13), 5619-5625.
"in rust we trust". Hematite-the prospective inorganic backbone for artificial photosynthesis
Bora Debajeet K., Braun Artur, Constable Edwin C. (2013), "in rust we trust". Hematite-the prospective inorganic backbone for artificial photosynthesis, in Energy and Environmental Science, 6(2), 407-425.
Hematite-NiO/α-Ni(OH)2 heterostructure photoanodes with high electrocatalytic current density and charge storage capacity
Bora Debajeet K., Braun Artur, Erni Rolf P., Müller Ulrich R., Döbeli Max, Constable Edwin C. (2013), Hematite-NiO/α-Ni(OH)2 heterostructure photoanodes with high electrocatalytic current density and charge storage capacity, in Physical Chemistry Chemical Physics, 15(30), 12648-12659.
Formation of an electron hole doped film in the α-Fe 2O3 photoanode upon electrochemical oxidation
Gajda-Schrantz Krisztina, Tymen Simon, Boudoire Florent, Toth Rita, Bora Debajeet K., Calvet Wolfram, Grätzel Michaël, Constable Edwin C., Braun Artur (2013), Formation of an electron hole doped film in the α-Fe 2O3 photoanode upon electrochemical oxidation, in Physical Chemistry Chemical Physics, 15(5), 1443-1451.
Between photocatalysis and photosynthesis: Synchrotron spectroscopy methods on molecules and materials for solar hydrogen generation
Bora Debajeet K., Hu Yelin, Thieß Sebastian, Erat Selma, Feng Xuefei, Mukherjee Sumanta, Fortunato Giuseppino, Gaillard Nicolas, Toth Rita, Gajda-Schrantz Krisztina, Drube Wolfgang, Grätzel Michaël, Guo Jinghua, Zhu Junfa, Constable Edwin C., Sarma D. D., Wang Hongxin, Braun Artur (2013), Between photocatalysis and photosynthesis: Synchrotron spectroscopy methods on molecules and materials for solar hydrogen generation, in Journal of Electron Spectroscopy and Related Phenomena, 190(Part ), 93-105.
A dip coating process for large area silicon-doped high performance hematite photoanodes
Hu Yelin, Bora Debajeet K., Boudoire Florent, Häussler Florian, Gräetzel Michael, Constable Edwin C., Braun Artur (2013), A dip coating process for large area silicon-doped high performance hematite photoanodes, in Journal of Renewable and Sustainable Energy, 5(4), 043109-1-043109-9.
Iron resonant photoemission spectroscopy on anodized hematite points to electron hole doping during anodization
Braun Artur, Chen Qianli, Flak Dorota, Fortunato Giuseppino, Gajda-Schrantz Krisztina, Grätzel Michaël, Graule Thomas, Guo Jinghua, Huang TzuWen, Liu Zhi, Popelo Anastasiya V., Sivula Kevin, Wadati Hiroki, Wyss Pradeep P., Zhang Liang, Zhu JunFa (2012), Iron resonant photoemission spectroscopy on anodized hematite points to electron hole doping during anodization, in ChemPhysChem, 13(12), 2937-2944.
Functionalization of nanostructured hematite thin-film electrodes with the light-harvesting membrane protein C-phycocyanin yields an enhanced photocurrent
Bora Debajeet K., Rozhkova Elena A., Schrantz Krisztina, Wyss Pradeep P., Braun Artur, Graule Thomas J., Constable Edwin C. (2012), Functionalization of nanostructured hematite thin-film electrodes with the light-harvesting membrane protein C-phycocyanin yields an enhanced photocurrent, in Advanced Functional Materials, 22(3), 490-502.
Direct observation of two electron holes in a hematite photoanode during photoelectrochemical water splitting
Braun Artur, Sivula Kevin, Bora Debajeet K., Zhu JunFa, Zhang Liang, Grätzel Michaël, Guo Jinghua, Constable Edwin C. (2012), Direct observation of two electron holes in a hematite photoanode during photoelectrochemical water splitting, in Journal of Physical Chemistry C, 116(32), 16870-16875.
Hydrothermal treatment of a hematite film leads to highly oriented faceted nanostructures with enhanced photocurrents
Bora Debajeet K., Braun Artur, Erni Rolf P., Fortunato Giuseppino, Graule Thomas J., Constable Edwin C. (2011), Hydrothermal treatment of a hematite film leads to highly oriented faceted nanostructures with enhanced photocurrents, in Chemistry of Materials, 23(8), 2051-2061.
Tailoring the morphology of WO3 films with substitutional cation doping: Effect on the photoelectrochemical properties
Solarska Renata, Alexander Bruce D., Braun Artur, Jurczakowski Rafał, Fortunato Giuseppino, Stiefel M., Graule Thomas J., Augustyński Jan W. (2010), Tailoring the morphology of WO3 films with substitutional cation doping: Effect on the photoelectrochemical properties, in Electrochimica Acta, 55(26), 7780-7787.
Electrospun TiO2 Fiber Composite Photoelectrodes for Water Splitting
Regonini D., Teloeken A. C., Alves Annelise Kopp, Berutti Felipe Amorim, Gajda-Schrantz Krisztina, Bergmann Carlos Pérez, Graule Thomas J., Clemens Frank Jörg (2013), Electrospun TiO2 Fiber Composite Photoelectrodes for Water Splitting, in ACS Applied Materials and Interfaces, 5(22), 11747-11755.
Charge transfer between photosynthetic proteins and hematite in bio-hybrid photoelectrodes for solar water splitting cells
G. Faccio K. Schrantz J. Ihssen F. Boudoire Y. Hu B.S. Mun D.K. Bora L. Thöny-Meyer A. Braun (2015), Charge transfer between photosynthetic proteins and hematite in bio-hybrid photoelectrodes for solar water splitting cells, in Nano Convergence (Springer), 2(9), 1-11.
Solution Processed Transparent Nanoparticulate ZnO Thin Film Electrode for Photoelectrochemical Water Oxidation
D.K. Bora A. Braun (2014), Solution Processed Transparent Nanoparticulate ZnO Thin Film Electrode for Photoelectrochemical Water Oxidation, in RSC Advances, 4, 23562-2357.
Photonic light trapping in self-organized all-oxide microspheroids impacts photoelectrochemical water splitting
F. Boudoire R. Toth J. Heier A. Braun E. C. Constable (2014), Photonic light trapping in self-organized all-oxide microspheroids impacts photoelectrochemical water splitting, in Energy Environ. Sci., 7, 2680-2688.
Light harvesting proteins for solar fuel generation in bioengineered photoelectrochemical cells.
Ihssen Julian, Braun Artur, Faccio Greta, Gajda-Schrantz Krisztina, Thöny-Meyer Linda (2014), Light harvesting proteins for solar fuel generation in bioengineered photoelectrochemical cells., in Current protein & peptide science, 15(4), 374-84.
Helium focused ion beam fabricated plasmonic antennas with sub-5 nm gaps
Scholder Olivier (2013), Helium focused ion beam fabricated plasmonic antennas with sub-5 nm gaps, in Nanotechnology, 24(39), 5301.
ORDERING ORGANIC THIN FILMS FOR APPLICATIONS IN ELECTRONICS AND PHOTONICS
Tisserant Jean-Nicolas (2014), ORDERING ORGANIC THIN FILMS FOR APPLICATIONS IN ELECTRONICS AND PHOTONICS.
Effect of Aging Time and Film Thickness on the Photoelectrochemical Properties of TiO2 Sol-Gel Photoanodes
D. Regonini1 A. K. Alves2 F. A. Berutti2 and F. Clemens1 (2014), Effect of Aging Time and Film Thickness on the Photoelectrochemical Properties of TiO2 Sol-Gel Photoanodes, in International Journal of Photoenergy, 2104, 472539.

Zusammenarbeit

Gruppe / Person Land
Felder der Zusammenarbeit
Lawrence Berkeley National Laboratory Vereinigte Staaten von Amerika (Nordamerika)
- vertiefter/weiterführender Austausch von Ansätzen, Methoden oder Resultaten
- Publikation
- Forschungsinfrastrukturen
- Austausch von Mitarbeitern
GIST Korea Korea, Republik (Südkorea) (Asien)
- vertiefter/weiterführender Austausch von Ansätzen, Methoden oder Resultaten
- Publikation
- Forschungsinfrastrukturen
- Austausch von Mitarbeitern
Argonne National Laboratory Vereinigte Staaten von Amerika (Nordamerika)
- vertiefter/weiterführender Austausch von Ansätzen, Methoden oder Resultaten
- Publikation
- Forschungsinfrastrukturen
Universität Basel Schweiz (Europa)
- vertiefter/weiterführender Austausch von Ansätzen, Methoden oder Resultaten
- Publikation
- Forschungsinfrastrukturen
- Austausch von Mitarbeitern
- Industrie/Wirtschaft/weitere anwendungs-orientierte Zusammenarbeit
Helmholtz Zentrum Berlin Solar Fuels Deutschland (Europa)
- vertiefter/weiterführender Austausch von Ansätzen, Methoden oder Resultaten
- Publikation
- Forschungsinfrastrukturen
University of Hawaii at Manoa Vereinigte Staaten von Amerika (Nordamerika)
- vertiefter/weiterführender Austausch von Ansätzen, Methoden oder Resultaten
- Publikation
- Forschungsinfrastrukturen
- Austausch von Mitarbeitern
University of Szeged Ungarn (Europa)
- vertiefter/weiterführender Austausch von Ansätzen, Methoden oder Resultaten
- Publikation
- Forschungsinfrastrukturen
- Austausch von Mitarbeitern
EPFL Lausanne Schweiz (Europa)
- vertiefter/weiterführender Austausch von Ansätzen, Methoden oder Resultaten
- Publikation
- Forschungsinfrastrukturen
- Austausch von Mitarbeitern

Wissenschaftliche Veranstaltungen

Kommunikation mit der Öffentlichkeit

Kommunikation Titel Medien Ort Jahr
Medienarbeit: Printmedien, Online-Medien Wasserstoffgewinnung dank «künstlicher Photosynthese» Algenprotein verstärkt elektrochemische Wasser Medienmitteilung Empa Westschweiz Deutschschweiz International 2011
Medienarbeit: Printmedien, Online-Medien Empa gewinnt Wasserstoff nach Pflanzenart Zürich online Westschweiz Deutschschweiz 2011
Medienarbeit: Printmedien, Online-Medien Wasserstoff aus Photosynthese NanoEnergie 7, CENIDE Newsletter International 2012
Medienarbeit: Printmedien, Online-Medien Solarer Wasserstoff und künstliche Photosynthese Swiss Engineering STZ Deutschschweiz 2012
Medienarbeit: Printmedien, Online-Medien Zwischen Photovoltaik und Photosynthese - Solarer Wasserstoff aus Rost und Algen HZwei - Das Magazin für Wasserstoff und Brennstoffzellen International 2012
Medienarbeit: Printmedien, Online-Medien Photoelektroden für solaren Wasserstoff HZwei - Das Magazin für Wasserstoff und Brennstoffzellen; 10 (2014) 14-15 International 2014
Medienarbeit: Printmedien, Online-Medien Wasserstoffgewinnung dank «künstlicher Photosynthese» - Algenprotein verstärkt elektrochemische Wass news.admin.ch Romanische Schweiz Italienische Schweiz International Westschweiz Deutschschweiz 2011

Auszeichnungen

Titel Jahr
Dr. Debajeet K. Bora (Empa and Uni Basel) Winner of EMPA Research Award 2013 for PhD thesis : "Hematite and its Hybrid Nanostructures for Photoelectrochemical Water Splitting: How do properties affect functionality? 2013

Verbundene Projekte

Nummer Titel Start Förderungsinstrument
147413 International Exploratory Workshop on Soft X-rays, Electrochemistry, and Energy Materials 01.05.2013 International Exploratory Workshops
149031 Production of Liquid Solar Fuels from CO2 and Water: Using Renewable Energy Resources 01.03.2014 Südafrika
133944 Oxide heterointerfaces in assemblies for photoelectrochemical applications 01.11.2010 Internationale Kurzaufenthalte
162232 SNF Korean Swiss project: Molecular and physical aspects of dye sensitization of photoelec-trodes with copper-based sensitizer molecules 01.02.2016 Südkorea
116688 Investigation of the driving forces of metal-insulator transitions in LaSrFeNi-oxides: Correlation of crystallographic structure, electronic structure and transport 01.08.2007 Projektförderung (Abt. I-III)
132126 Defects in the bulk and on surfaces and interfaces of metal oxides with photoelectrochemical properties: In-situ photoelectrochemical and resonant x-ray and electron spectroscopy studies 01.06.2011 Projektförderung (Abt. I-III)
116955 In Situ Sum Frequency Genertion Vibrational Spectroscopy of Catalytic Reactions on Single Crystal Metal Surfaces and on Nanoparticles 01.05.2007 Stipendien für angehende Forschende
161673 International Exploratory Workshop on Photoelectrochemistry, Catalysis and X-ray spectroscopy 01.07.2015 International Exploratory Workshops
137868 Reaction-diffusion processes for the growth of patterned structures and architectures: A bottom-up approach for photoelectrochemical electrodes 01.03.2012 Projektförderung (Abt. I-III)

Abstract

We want to purchase several scientific instruments necessary as basic equipment for the func-tional characterization of ceramic materials relevant for photocatalytical (PC) and photoelectro-chemical (PEC) research studies. EMPA conducts a research program for sustainable and CO2 neutral energy economy. Its Labo-ratory for High Performance Ceramics (Hochleistungskeramik – HLK, in the Department for Ad-vanced Materials and Surfaces) serves this goal with a project on photoelectrochemical hydro-gen production by solar water splitting, which counts towards Switzerland’s responsibilities in Annex 26 in the International Energy Agency’s Hydrogen Implementation Agreement for 2008, and which is embedded in the mission of PEC house, administered by EPFL. In addition, HLK has active projects on photocatalysis to address the societies’ needs for clean water and hygi-enic surfaces. Our HLK is on a successful move from work on structural ceramics to research on functional ceramic materials. Photocatalysis has emerged as a very promising activity since some four years ago, beginning with one PhD thesis project that was successfully finished in early 2007. During the last three years, we have published 6-8 scientific papers on nanoparticle synthesis with application to photocatalysis. Currently we have two more PhD students, one postdoctoral student and several diploma students working on PC and PEC, and two scientists devote a ma-jor share of their efforts to these topics as well. HLK is looking forward to continue with the training of PhD students who will work on a joint basis to 50% at EMPA and the other time at their home universities in Poland. Our international research network on PC and PEC extends across Europe to Japan and the USA, and we are organizers of a PC/PEC symposium at the MRS 2009 Spring Meeting. While HLK’s traditional strength is in ceramic material synthesis, its new mission of research on functional ceramics is being impeded by the lack of basic analytical equipment for the functional characterization and performance assessment of photoactive ceramic materi-als. To better comply with our new mission, we need the instruments listed below which enable us to quantitatively determine solar-functional characteristics of our materials, and hence ad-vance to a true scientific laboratory. The costs of the six instruments amount to approximately 192,000 CHF. HLK will pay 66,228 CHF. The board of Directors at EMPA is requested to contribute with a 30,000 CHF. Together with another 96,227 CHF from SNF, we will be able to acquire a well suited set of laboratory equipment. The Swiss Federal Office of Energy endorses particularly our solar hydrogen activities and supports this project with an earnest money 18,000 CHF towards the salary for the installation of the equipment.