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Yuan J, Yuan Y, Zhang J, Xu H, Mao Z, Ma Y. Mechanistic Insights into Selective Acetaldehyde Formation from Ethanol Oxidation on Hematite Photoanodes by Operando Spectroelectrochemistry. CHEMSUSCHEM 2022; 15:e202102313. [PMID: 34978391 DOI: 10.1002/cssc.202102313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Revised: 12/30/2021] [Indexed: 06/14/2023]
Abstract
This study employed operando spectroelectrochemical l and photoelectrochemical methods to investigate the charge carrier dynamics of photogenerated holes in hematite for ethanol oxidation and its possible over-oxidation. Ethanol oxidation was found to form acetaldehyde with around 100 % initial selectivity and faradaic efficiency. The overoxidation of acetaldehyde was suppressed by being unable to kinetically compete with ethanol oxidation in terms of turnover frequency by a factor of ten. Temperature-dependent rate law analyses were applied to determine the activation energies of these two oxidations. For the ethanol oxidation, the activation energy was 195 meV, compared to 398 meV for acetaldehyde oxidation. These results were correlated with the valence band potential to elucidate the advantage of using hematite for safer and sustainable value-added aldehyde synthesis compared to the industrial method. The dynamics of ethanol oxidation also addressed the challenges in broad-spectrum deep oxidation of organic compounds in water purification using metal oxides.
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Affiliation(s)
- Jianhe Yuan
- Key Laboratory of Science and Technology of Eco-Textile, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Innovation Center for Textile Science and Technology, Donghua University, 201620, Shanghai, P. R. China
| | - Yuling Yuan
- Key Laboratory of Science and Technology of Eco-Textile, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Innovation Center for Textile Science and Technology, Donghua University, 201620, Shanghai, P. R. China
| | - Jingjing Zhang
- Key Laboratory of Science and Technology of Eco-Textile, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Innovation Center for Textile Science and Technology, Donghua University, 201620, Shanghai, P. R. China
| | - Hong Xu
- Key Laboratory of Science and Technology of Eco-Textile, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Innovation Center for Textile Science and Technology, Donghua University, 201620, Shanghai, P. R. China
| | - Zhiping Mao
- Key Laboratory of Science and Technology of Eco-Textile, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Innovation Center for Textile Science and Technology, Donghua University, 201620, Shanghai, P. R. China
- National Engineering Research Center for Dyeing and Finishing of Textiles, Donghua University, 201620, Shanghai, P. R. China
- National Manufacturing Innovation Center of Advanced Dyeing and Finishing Technology, 271000, Taian City, Shandong Province, P. R. China
| | - Yimeng Ma
- Key Laboratory of Science and Technology of Eco-Textile, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Innovation Center for Textile Science and Technology, Donghua University, 201620, Shanghai, P. R. China
- National Engineering Research Center for Dyeing and Finishing of Textiles, Donghua University, 201620, Shanghai, P. R. China
- National Manufacturing Innovation Center of Advanced Dyeing and Finishing Technology, 271000, Taian City, Shandong Province, P. R. China
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Günnemann C, Curti M, Gerrit Eckert J, Schneider J, Bahnemann DW. Tailoring the Photoelectrochemical Activity of TiO
2
Electrodes by Multilayer Screen‐Printing. ChemCatChem 2019. [DOI: 10.1002/cctc.201901872] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Carsten Günnemann
- Institut für Technische ChemieGottfried Wilhelm Leibniz Universität Hannover Hannover 30167 Germany
| | - Mariano Curti
- Institut für Technische ChemieGottfried Wilhelm Leibniz Universität Hannover Hannover 30167 Germany
| | - J. Gerrit Eckert
- Institut für Technische ChemieGottfried Wilhelm Leibniz Universität Hannover Hannover 30167 Germany
| | - Jenny Schneider
- Department of ChemistryUniversity of North Carolina at Chapel Hill Chapel Hill NC-27599 USA
| | - Detlef W. Bahnemann
- Institut für Technische ChemieGottfried Wilhelm Leibniz Universität Hannover Hannover 30167 Germany
- Laboratory “Photoactive Nanocomposite Materials”Saint-Petersburg State University Saint Petersburg 198504 Russia
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3
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Díaz-Real JA, Dubed-Bandomo GC, Galindo-de-la-Rosa J, Arriaga LG, Ledesma-García J, Alonso-Vante N. Impact of the anodization time on the photocatalytic activity of TiO 2 nanotubes. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2018; 9:2628-2643. [PMID: 30416913 PMCID: PMC6204776 DOI: 10.3762/bjnano.9.244] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/12/2018] [Accepted: 09/21/2018] [Indexed: 06/09/2023]
Abstract
Titanium oxide nanotubes (TNTs) were anodically grown in ethylene glycol electrolyte. The influence of the anodization time on their physicochemical and photoelectrochemical properties was evaluated. Concomitant with the anodization time, the NT length, fluorine content, and capacitance of the space charge region increased, affecting the opto-electronic properties (bandgap, bathochromic shift, band-edge position) and surface hydrophilicity of TiO2 NTs. These properties are at the origin of the photocatalytic activity (PCA), as proved with the photooxidation of methylene blue.
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Affiliation(s)
- Jesús A Díaz-Real
- Centro de Investigación y Desarrollo Tecnológico en Electroquímica, 76703, Querétaro, México
- IC2MP, UMR-CNRS 7285, Université de Poitiers, 4 rue Michel Brunet, F-86073 Poitiers, France
- Facultad de Ingeniería, División de Investigación y Posgrado, Universidad Autónoma de Querétaro, Centro Universitario Cerro de las Campanas, Querétaro, Qro., C.P. 76010, Mexico
- The University of British Columbia, Clean Energy Research Centre, 6250 Applied Science Lane, Vancouver, British Columbia, V6T 1Z4, Canada
| | - Geyla C Dubed-Bandomo
- Centro de Investigación y Desarrollo Tecnológico en Electroquímica, 76703, Querétaro, México
| | - Juan Galindo-de-la-Rosa
- Centro de Investigación y Desarrollo Tecnológico en Electroquímica, 76703, Querétaro, México
| | - Luis G Arriaga
- Centro de Investigación y Desarrollo Tecnológico en Electroquímica, 76703, Querétaro, México
| | - Janet Ledesma-García
- Facultad de Ingeniería, División de Investigación y Posgrado, Universidad Autónoma de Querétaro, Centro Universitario Cerro de las Campanas, Querétaro, Qro., C.P. 76010, Mexico
| | - Nicolas Alonso-Vante
- IC2MP, UMR-CNRS 7285, Université de Poitiers, 4 rue Michel Brunet, F-86073 Poitiers, France
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4
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Mesa CA, Kafizas A, Francàs L, Pendlebury SR, Pastor E, Ma Y, Le Formal F, Mayer MT, Grätzel M, Durrant JR. Kinetics of Photoelectrochemical Oxidation of Methanol on Hematite Photoanodes. J Am Chem Soc 2017; 139:11537-11543. [PMID: 28735533 PMCID: PMC5594441 DOI: 10.1021/jacs.7b05184] [Citation(s) in RCA: 57] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
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The kinetics of photoelectrochemical
(PEC) oxidation of methanol, as a model organic substrate, on α-Fe2O3 photoanodes are studied using photoinduced absorption
spectroscopy and transient photocurrent measurements. Methanol is
oxidized on α-Fe2O3 to formaldehyde with
near unity Faradaic efficiency. A rate law analysis under quasi-steady-state
conditions of PEC methanol oxidation indicates that rate of reaction
is second order in the density of surface holes on hematite and independent
of the applied potential. Analogous data on anatase TiO2 photoanodes indicate similar second-order kinetics for methanol
oxidation with a second-order rate constant 2 orders of magnitude
higher than that on α-Fe2O3. Kinetic isotope
effect studies determine that the rate constant for methanol oxidation
on α-Fe2O3 is retarded ∼20-fold
by H/D substitution. Employing these data, we propose a mechanism
for methanol oxidation under 1 sun irradiation on these metal oxide
surfaces and discuss the implications for the efficient PEC methanol
oxidation to formaldehyde and concomitant hydrogen evolution.
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Affiliation(s)
- Camilo A Mesa
- Department of Chemistry, Imperial College London , South Kensington Campus, London SW7 2 AZ, United Kingdom
| | - Andreas Kafizas
- Department of Chemistry, Imperial College London , South Kensington Campus, London SW7 2 AZ, United Kingdom
| | - Laia Francàs
- Department of Chemistry, Imperial College London , South Kensington Campus, London SW7 2 AZ, United Kingdom
| | - Stephanie R Pendlebury
- Department of Chemistry, Imperial College London , South Kensington Campus, London SW7 2 AZ, United Kingdom
| | - Ernest Pastor
- Department of Chemistry, Imperial College London , South Kensington Campus, London SW7 2 AZ, United Kingdom
| | - Yimeng Ma
- Department of Chemistry, Imperial College London , South Kensington Campus, London SW7 2 AZ, United Kingdom
| | - Florian Le Formal
- Department of Chemistry, Imperial College London , South Kensington Campus, London SW7 2 AZ, United Kingdom.,Institut des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne , Station 6, CH-1015 Lausanne, Switzerland
| | - Matthew T Mayer
- Institut des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne , Station 6, CH-1015 Lausanne, Switzerland
| | - Michael Grätzel
- Institut des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne , Station 6, CH-1015 Lausanne, Switzerland
| | - James R Durrant
- Department of Chemistry, Imperial College London , South Kensington Campus, London SW7 2 AZ, United Kingdom
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5
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Zhu Z, Sarker P, Zhao C, Zhou L, Grimm RL, Huda MN, Rao PM. Photoelectrochemical Properties and Behavior of α-SnWO 4 Photoanodes Synthesized by Hydrothermal Conversion of WO 3 Films. ACS APPLIED MATERIALS & INTERFACES 2017; 9:1459-1470. [PMID: 27991759 DOI: 10.1021/acsami.6b12640] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Metal oxides with moderate band gaps are desired for efficient production of hydrogen from sunlight and water via photoelectrochemical (PEC) water splitting. Here, we report an α-SnWO4 photoanode synthesized by hydrothermal conversion of WO3 films that achieves photon to current conversion at wavelengths up to 700 nm (1.78 eV). This photoanode is promising for overall PEC water-splitting because the flat-band potential and voltage of photocurrent onset are more negative than the potential of hydrogen evolution. Furthermore, the photoanode utilizes a large portion of the solar spectrum. However, the photocurrent density reaches only a small fraction of that which is theoretically possible. Density functional theory based thermodynamic and electronic structure calculations were performed to elucidate the nature and impact of defects in α-SnWO4 prepared by this synthetic route, from which hole localization at Sn-at-W antisite defects was determined to be a likely cause for the poor photocurrent. Measurements further showed that the photocurrent decreases over time due to surface oxidation, which was suppressed by improving the kinetics of hole transfer at the semiconductor/electrolyte interface. Alternative synthetic methods and the addition of protective coatings and/or oxygen evolution catalysts are suggested to improve the PEC performance and stability of this promising α-SnWO4 material.
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Affiliation(s)
- Zhehao Zhu
- Department of Chemistry and Biochemistry, Worcester Polytechnic Institute , Worcester, Massachusetts 01609, United States
- Department of Chemical Engineering, Worcester Polytechnic Institute , Worcester, Massachusetts 01609, United States
| | - Pranab Sarker
- Department of Physics, University of Texas at Arlington , Arlington, Texas 76019, United States
| | - Chenqi Zhao
- Materials Science and Engineering Graduate Program, Worcester Polytechnic Institute , Worcester, Massachusetts 01609, United States
| | - Lite Zhou
- Materials Science and Engineering Graduate Program, Worcester Polytechnic Institute , Worcester, Massachusetts 01609, United States
| | - Ronald L Grimm
- Department of Chemistry and Biochemistry, Worcester Polytechnic Institute , Worcester, Massachusetts 01609, United States
| | - Muhammad N Huda
- Department of Physics, University of Texas at Arlington , Arlington, Texas 76019, United States
| | - Pratap M Rao
- Materials Science and Engineering Graduate Program, Worcester Polytechnic Institute , Worcester, Massachusetts 01609, United States
- Department of Mechanical Engineering, Worcester Polytechnic Institute , Worcester, Massachusetts 01609, United States
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6
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Díaz-Real J, Ortiz-Ortega E, Gurrola M, Ledesma-Garcia J, Arriaga L. Light-harvesting Ni/TiO2 nanotubes as photo-electrocatalyst for alcohol oxidation in alkaline media. Electrochim Acta 2016. [DOI: 10.1016/j.electacta.2016.04.163] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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7
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Lee K, Mazare A, Schmuki P. One-dimensional titanium dioxide nanomaterials: nanotubes. Chem Rev 2014; 114:9385-454. [PMID: 25121734 DOI: 10.1021/cr500061m] [Citation(s) in RCA: 506] [Impact Index Per Article: 50.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Kiyoung Lee
- Department of Materials Science WW4-LKO, University of Erlangen-Nuremberg , Martensstrasse 7, 91058 Erlangen, Germany
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8
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Georgieva J, Valova E, Armyanov S, Philippidis N, Poulios I, Sotiropoulos S. Bi-component semiconductor oxide photoanodes for the photoelectrocatalytic oxidation of organic solutes and vapours: a short review with emphasis to TiO2-WO3 photoanodes. JOURNAL OF HAZARDOUS MATERIALS 2012; 211-212:30-46. [PMID: 22172459 DOI: 10.1016/j.jhazmat.2011.11.069] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2011] [Revised: 11/19/2011] [Accepted: 11/21/2011] [Indexed: 05/31/2023]
Abstract
The use of binary semiconductor oxide anodes for the photoelectrocatalytic oxidation of organic species (both in solution and gas phase) is reviewed. In the first part of the review, the principle of electrically assisted photocatalysis is presented, the preparation methods for the most common semiconductor oxide catalysts are briefly mentioned, while the advantages of appropriately chosen semiconductor combinations for efficient UV and visible (vis) light utilization are highlighted. The second part of the review focuses on the discussion of TiO(2)-WO(3) photoanodes (among the most studied bi-component semiconductor oxide systems) and in particular on coatings prepared by electrodeposition/electrosynthesis or powder mixtures (the focus of the authors' research during recent years). Studies concerning the microscopic, spectroscopic and photoelectrochemical characterization of the catalysts are presented and examples of photoanode activity towards typical dissolved organic contaminants as well as organic vapours are given. Particular emphasis is paid to: (a) The dependence of photoactivity on catalyst morphology and composition and (b) the possibility of carrying out photoelectrochemistry in all-solid cells, thus opening up the opportunity for photoelectrocatalytic air treatment.
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Affiliation(s)
- J Georgieva
- Rostislaw Kaischew Institute of Physical Chemistry, Bulgarian Academy of Sciences, Sofia 1113, Bulgaria
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9
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Ramya S, George RP, Subba Rao RV, Dayal RK. Effect of biofouling on anodized and sol-gel treated titanium surfaces: a comparative study. BIOFOULING 2010; 26:883-891. [PMID: 20967646 DOI: 10.1080/08927014.2010.529613] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Anodization and sol-gel treatments of titanium (Ti) were evaluated as biofilm control measures on surfaces exposed to seawater exposed to ultraviolet light. Anodized and sol-gel treated specimens were characterized using Raman spectroscopy to confirm the presence of TiO(2). The single anatase phase was observed at the anodized surfaces whereas the anatase/rutile mixed phase was detected on the sol-gel coated surfaces. After exposure of the specimens to seawater, biofilms were characterized by total viable counts, and epifluorescence and Raman microscopy. These techniques confirmed the reduction in biofilm formation on both the anodized and sol-gel coated Ti specimens compared to the untreated specimens. Biofilm control by anodization was found to be more effective than by sol-gel treatment of the specimens. The higher particle size and the inhomogeneity at the sol-gel coated surfaces produced less effective biofilm control.
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Affiliation(s)
- S Ramya
- Corrosion Science and Technology Division, Indira Gandhi Centre for Atomic Research, Kalpakkam, India.
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10
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Solarska R, Rutkowska I, Augustynski J. Unusual photoelectrochemical behaviour of nanocrystalline TiO2 films. Inorganica Chim Acta 2008. [DOI: 10.1016/j.ica.2007.05.037] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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11
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The solid–solid interface: Explaining the high and unique photocatalytic reactivity of TiO2-based nanocomposite materials. Chem Phys 2007. [DOI: 10.1016/j.chemphys.2007.05.023] [Citation(s) in RCA: 251] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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12
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Waldner G, Gómez R, Neumann-Spallart M. Using photoelectrochemical measurements for distinguishing between direct and indirect hole transfer processes on anatase: Case of oxalic acid. Electrochim Acta 2007. [DOI: 10.1016/j.electacta.2006.09.019] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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13
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Monllor-Satoca D, Borja L, Rodes A, Gómez R, Salvador P. Photoelectrochemical Behavior of Nanostructured WO3 Thin-Film Electrodes: The Oxidation of Formic Acid. Chemphyschem 2006; 7:2540-51. [PMID: 17072939 DOI: 10.1002/cphc.200600379] [Citation(s) in RCA: 62] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Nanostructured tungsten trioxide thin-film electrodes are prepared on conducting glass substrates by either potentiostatic electrodeposition from aqueous solutions of peroxotungstic acid or direct deposition of WO3 slurries. Once treated thermally in air at 450 degrees C, the electrodes are found to be composed of monoclinic WO3 grains with a particle size around 30-40 nm. The photoelectrochemical behavior of these electrodes in 1 M HClO4 apparently reveals a low degree of electron-hole recombination. Upon addition of formic acid, the electrode showed the current multiplication phenomenon together with a shift of the photocurrent onset potential toward less positive values. Photoelectrochemical experiments devised on the basis of a kinetic model reported recently [I. Mora-Seró, T. Lana-Villarreal, J. Bisquert, A. Pitarch, R. Gómez, P. Salvador, J. Phys. Chem. B 2005, 109, 3371] showed that an interfacial mechanism of inelastic, direct hole transfer takes place in the photooxidation of formic acid. This behavior is attributed to the tendency of formic acid molecules to be specifically adsorbed on the WO3 nanoparticles, as evidenced by attenuated total reflection infrared spectroscopy.
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Affiliation(s)
- Damián Monllor-Satoca
- Departament de Química Física i Institut Universitari d'Electroquímica, Universitat d'Alacant, Ap. 99, 03080 Alacant, Spain
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14
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An T, Xiong Y, Li G, Zhu X, Sheng G, Fu J. Improving ultraviolet light transmission in a packed-bed photoelectrocatalytic reactor for removal of oxalic acid from wastewater. J Photochem Photobiol A Chem 2006. [DOI: 10.1016/j.jphotochem.2005.11.019] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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15
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Photoelectrochemical characterisation of thermal and particulate titanium dioxide electrodes. J APPL ELECTROCHEM 2005. [DOI: 10.1007/s10800-005-9100-0] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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16
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17
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Villarreal TL, Gómez R, Neumann-Spallart M, Alonso-Vante N, Salvador P. Semiconductor Photooxidation of Pollutants Dissolved in Water: A Kinetic Model for Distinguishing between Direct and Indirect Interfacial Hole Transfer. I. Photoelectrochemical Experiments with Polycrystalline Anatase Electrodes under Current Doubling and Absence of Recombination. J Phys Chem B 2004. [DOI: 10.1021/jp049447a] [Citation(s) in RCA: 136] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- T. Lana Villarreal
- Departament de Química Física and Institut Universitari d'Electroquímica, Universitat d'Alacant, Ap. 99, E-03080 Alacant, Spain, Instituto de Catálisis y Petroleoquímica, CSIC, Spain, Laboratoire de Physique de Solides et de Cristallographie, CNRS, France, Laboratoire Electrocatalyse, Universite de Poitiers, France, and Departamento de Matemáticas e Informática, Universidad Islas Baleares, E-07071, Spain
| | - R. Gómez
- Departament de Química Física and Institut Universitari d'Electroquímica, Universitat d'Alacant, Ap. 99, E-03080 Alacant, Spain, Instituto de Catálisis y Petroleoquímica, CSIC, Spain, Laboratoire de Physique de Solides et de Cristallographie, CNRS, France, Laboratoire Electrocatalyse, Universite de Poitiers, France, and Departamento de Matemáticas e Informática, Universidad Islas Baleares, E-07071, Spain
| | - M. Neumann-Spallart
- Departament de Química Física and Institut Universitari d'Electroquímica, Universitat d'Alacant, Ap. 99, E-03080 Alacant, Spain, Instituto de Catálisis y Petroleoquímica, CSIC, Spain, Laboratoire de Physique de Solides et de Cristallographie, CNRS, France, Laboratoire Electrocatalyse, Universite de Poitiers, France, and Departamento de Matemáticas e Informática, Universidad Islas Baleares, E-07071, Spain
| | - N. Alonso-Vante
- Departament de Química Física and Institut Universitari d'Electroquímica, Universitat d'Alacant, Ap. 99, E-03080 Alacant, Spain, Instituto de Catálisis y Petroleoquímica, CSIC, Spain, Laboratoire de Physique de Solides et de Cristallographie, CNRS, France, Laboratoire Electrocatalyse, Universite de Poitiers, France, and Departamento de Matemáticas e Informática, Universidad Islas Baleares, E-07071, Spain
| | - P. Salvador
- Departament de Química Física and Institut Universitari d'Electroquímica, Universitat d'Alacant, Ap. 99, E-03080 Alacant, Spain, Instituto de Catálisis y Petroleoquímica, CSIC, Spain, Laboratoire de Physique de Solides et de Cristallographie, CNRS, France, Laboratoire Electrocatalyse, Universite de Poitiers, France, and Departamento de Matemáticas e Informática, Universidad Islas Baleares, E-07071, Spain
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18
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Synergetic effect in degradation of formic acid using a new photoelectrochemical reactor. J Photochem Photobiol A Chem 2002. [DOI: 10.1016/s1010-6030(02)00211-3] [Citation(s) in RCA: 58] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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19
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Morand R, Lopez C, Koudelka-Hep M, Kedzierzawski P, Augustynski J. Photoelectrochemical Behavior in Low-Conductivity Media of Nanostructured TiO2 Films Deposited on Interdigitated Microelectrode Arrays. J Phys Chem B 2002. [DOI: 10.1021/jp025675y] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Robin Morand
- Department of Chemistry, University of Geneva, CH-1211 Geneva 4, Switzerland, Laboratoire d'Electrochimie et de Physico-chimie des Matériaux et des Interfaces, E.N.S.E.E.G., 38402 Saint Martin d'Hères, France, Institute of Microtechnology, University of Neuchâtel, 2007 Neuchâtel, Switzerland, and Institute of Physical Chemistry of Polish Academy of Sciences, 01-224 Warsaw, Poland
| | - Christian Lopez
- Department of Chemistry, University of Geneva, CH-1211 Geneva 4, Switzerland, Laboratoire d'Electrochimie et de Physico-chimie des Matériaux et des Interfaces, E.N.S.E.E.G., 38402 Saint Martin d'Hères, France, Institute of Microtechnology, University of Neuchâtel, 2007 Neuchâtel, Switzerland, and Institute of Physical Chemistry of Polish Academy of Sciences, 01-224 Warsaw, Poland
| | - Milena Koudelka-Hep
- Department of Chemistry, University of Geneva, CH-1211 Geneva 4, Switzerland, Laboratoire d'Electrochimie et de Physico-chimie des Matériaux et des Interfaces, E.N.S.E.E.G., 38402 Saint Martin d'Hères, France, Institute of Microtechnology, University of Neuchâtel, 2007 Neuchâtel, Switzerland, and Institute of Physical Chemistry of Polish Academy of Sciences, 01-224 Warsaw, Poland
| | - Piotr Kedzierzawski
- Department of Chemistry, University of Geneva, CH-1211 Geneva 4, Switzerland, Laboratoire d'Electrochimie et de Physico-chimie des Matériaux et des Interfaces, E.N.S.E.E.G., 38402 Saint Martin d'Hères, France, Institute of Microtechnology, University of Neuchâtel, 2007 Neuchâtel, Switzerland, and Institute of Physical Chemistry of Polish Academy of Sciences, 01-224 Warsaw, Poland
| | - Jan Augustynski
- Department of Chemistry, University of Geneva, CH-1211 Geneva 4, Switzerland, Laboratoire d'Electrochimie et de Physico-chimie des Matériaux et des Interfaces, E.N.S.E.E.G., 38402 Saint Martin d'Hères, France, Institute of Microtechnology, University of Neuchâtel, 2007 Neuchâtel, Switzerland, and Institute of Physical Chemistry of Polish Academy of Sciences, 01-224 Warsaw, Poland
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20
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Tsujiko A, Itoh H, Kisumi T, Shiga A, Murakoshi K, Nakato Y. Observation of Cathodic Photocurrents at Nanocrystalline TiO2Film Electrodes, Caused by Enhanced Oxygen Reduction in Alkaline Solutions. J Phys Chem B 2002. [DOI: 10.1021/jp012144l] [Citation(s) in RCA: 58] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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21
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Santato C, Odziemkowski M, Ulmann M, Augustynski J. Crystallographically oriented mesoporous WO3 films: synthesis, characterization, and applications. J Am Chem Soc 2001; 123:10639-49. [PMID: 11673995 DOI: 10.1021/ja011315x] [Citation(s) in RCA: 398] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Mesoporous semiconducting films consisting of preferentially orientated monoclinic-phase nanocrystals of tungsten trioxide have been prepared using a novel version of the sol-gel method. Transformations undergone by a colloidal solution of tungstic acid, stabilized by an organic additive such as poly(ethylene glycol) (PEG) 300, as a function of the annealing temperature have been followed by means of a confocal Raman microscope. The shape and size of WO3 nanoparticles, the porosity, and the properties of the films depend critically on preparation parameters, such as the tungstic acid/PEG ratio, the PEG chain length, and the annealing conditions. Well-crystallized WO3 films combine excellent photoresponse to the blue region of the solar spectrum, up to 500 nm, with good transparency at wavelengths larger than 550 nm. Particular applications of these nanocrystalline WO3 films include photoelectrochemical and electrochromic devices.
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Affiliation(s)
- C Santato
- Department of Chemistry, University of Geneva, CH-1211 Geneva 4, Switzerland
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Santato C, Ulmann M, Augustynski J. Photoelectrochemical Properties of Nanostructured Tungsten Trioxide Films. J Phys Chem B 2001. [DOI: 10.1021/jp002232q] [Citation(s) in RCA: 412] [Impact Index Per Article: 17.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Clara Santato
- Department of Chemistry, University of Geneva, CH-1211 Geneva 4, Switzerland
| | - Martine Ulmann
- Department of Chemistry, University of Geneva, CH-1211 Geneva 4, Switzerland
| | - Jan Augustynski
- Department of Chemistry, University of Geneva, CH-1211 Geneva 4, Switzerland
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Mandelbaum PA, Regazzoni AE, Blesa MA, Bilmes SA. Photo-Electro-Oxidation of Alcohols on Titanium Dioxide Thin Film Electrodes. J Phys Chem B 1999. [DOI: 10.1021/jp984812h] [Citation(s) in RCA: 79] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Pablo A. Mandelbaum
- INQUIMAE-DQIAQF, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Pabellón II, 1428 Buenos Aires, Argentina, and Unidad de Actividad Química, Comisión Nacional de Energía Atómica, Avenida del Libertador 8250, 1429 Buenos Aires, Argentina
| | - Alberto E. Regazzoni
- INQUIMAE-DQIAQF, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Pabellón II, 1428 Buenos Aires, Argentina, and Unidad de Actividad Química, Comisión Nacional de Energía Atómica, Avenida del Libertador 8250, 1429 Buenos Aires, Argentina
| | - Miguel A. Blesa
- INQUIMAE-DQIAQF, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Pabellón II, 1428 Buenos Aires, Argentina, and Unidad de Actividad Química, Comisión Nacional de Energía Atómica, Avenida del Libertador 8250, 1429 Buenos Aires, Argentina
| | - Sara A. Bilmes
- INQUIMAE-DQIAQF, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Pabellón II, 1428 Buenos Aires, Argentina, and Unidad de Actividad Química, Comisión Nacional de Energía Atómica, Avenida del Libertador 8250, 1429 Buenos Aires, Argentina
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Wahl A, Augustynski J. Charge Carrier Transport in Nanostructured Anatase TiO2 Films Assisted by the Self-Doping of Nanoparticles. J Phys Chem B 1998. [DOI: 10.1021/jp9814000] [Citation(s) in RCA: 96] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Axel Wahl
- Université de Genève, Département de Chimie Minérale, Analytique et Appliquée, 1211 Genève 4, Switzerland
| | - Jan Augustynski
- Université de Genève, Département de Chimie Minérale, Analytique et Appliquée, 1211 Genève 4, Switzerland
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Shiga A, Tsujiko A, Yae S, Nakato Y. High Photocurrent Quantum Yields in Short Wavelengths for Nanocrystalline Anatase-Type TiO2Film Electrodes Compared with Those for Rutile-Type. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 1998. [DOI: 10.1246/bcsj.71.2119] [Citation(s) in RCA: 24] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Shiga A, Tsujiko A, Ide T, Yae S, Nakato Y. Nature of Electrical Junction at the TiO2/Substrate Interface for Particulate TiO2 Film Electrodes in Aqueous Electrolytes. J Phys Chem B 1998. [DOI: 10.1021/jp981280w] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Akira Shiga
- Department of Chemistry, Graduate School of Engineering Science, and Research Center for Photoenergetics of Organic Materials, Osaka University, Toyonaka, Osaka 560-8531, Japan
| | - Akira Tsujiko
- Department of Chemistry, Graduate School of Engineering Science, and Research Center for Photoenergetics of Organic Materials, Osaka University, Toyonaka, Osaka 560-8531, Japan
| | - Tomohiro Ide
- Department of Chemistry, Graduate School of Engineering Science, and Research Center for Photoenergetics of Organic Materials, Osaka University, Toyonaka, Osaka 560-8531, Japan
| | - Shinji Yae
- Department of Chemistry, Graduate School of Engineering Science, and Research Center for Photoenergetics of Organic Materials, Osaka University, Toyonaka, Osaka 560-8531, Japan
| | - Yoshihiro Nakato
- Department of Chemistry, Graduate School of Engineering Science, and Research Center for Photoenergetics of Organic Materials, Osaka University, Toyonaka, Osaka 560-8531, Japan
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Kaneco S, Shimizu Y, Ohta K, Mizuno T. Photocatalytic reduction of high pressure carbon dioxide using TiO2 powders with a positive hole scavenger. J Photochem Photobiol A Chem 1998. [DOI: 10.1016/s1010-6030(98)00274-3] [Citation(s) in RCA: 95] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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28
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de Jongh PE, Vanmaekelbergh D. Investigation of the Electronic Transport Properties of Nanocrystalline Particulate TiO2 Electrodes by Intensity-Modulated Photocurrent Spectroscopy. J Phys Chem B 1997. [DOI: 10.1021/jp962226n] [Citation(s) in RCA: 190] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- P. E. de Jongh
- Debye Institute, Utrecht University, 3508 TA Utrecht, The Netherlands
| | - D. Vanmaekelbergh
- Debye Institute, Utrecht University, 3508 TA Utrecht, The Netherlands
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Zhou M, de Tacconi N, Rajeshwar K. Preparation and characterization of nanocrystalline composite (nanocomposite) films of titanium dioxide and nickel by occlusion electrodeposition. J Electroanal Chem (Lausanne) 1997. [DOI: 10.1016/s0022-0728(96)04825-5] [Citation(s) in RCA: 50] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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31
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Grela MA, Coronel MEJ, Colussi AJ. Quantitative Spin-Trapping Studies of Weakly Illuminated Titanium Dioxide Sols. Implications for the Mechanism of Photocatalysis. ACTA ACUST UNITED AC 1996. [DOI: 10.1021/jp953562r] [Citation(s) in RCA: 150] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- M. A. Grela
- Department of Chemistry, University of Mar del Plata, 7600 Mar del Plata, Argentina, and Department of Physical Chemistry, Faculty of Exact and Natural Sciences, University of Buenos Aires, 1428 Buenos Aires, Argentina
| | - M. E. J. Coronel
- Department of Chemistry, University of Mar del Plata, 7600 Mar del Plata, Argentina, and Department of Physical Chemistry, Faculty of Exact and Natural Sciences, University of Buenos Aires, 1428 Buenos Aires, Argentina
| | - A. J. Colussi
- Department of Chemistry, University of Mar del Plata, 7600 Mar del Plata, Argentina, and Department of Physical Chemistry, Faculty of Exact and Natural Sciences, University of Buenos Aires, 1428 Buenos Aires, Argentina
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Dolata M, Kedzierzawski P, Augustynski J. Comparative impedance spectroscopy study of rutile and anatase Tio2 film electrodes. Electrochim Acta 1996. [DOI: 10.1016/0013-4686(95)00449-1] [Citation(s) in RCA: 49] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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