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Jacobs J, Oehler F, Schettlock J, Ebbinghaus SG. Structure, Optical, and Photocatalytic Properties of Oxynitride Solid Solutions Ca1-x
Sr
x
NbO2
N, CaNb1-x
Ta
x
O2
N, and SrNb1-x
Ta
x
O2
N Prepared from Soft-Chemistry Precursors. Z Anorg Allg Chem 2018. [DOI: 10.1002/zaac.201800357] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Jonas Jacobs
- Institut für Chemie/Anorganische Chemie; Martin-Luther-Universität Halle-Wittenberg; Kurt-Mothes-Str. 2 06120 Halle (Saale) Germany
| | - Florian Oehler
- Institut für Chemie/Anorganische Chemie; Martin-Luther-Universität Halle-Wittenberg; Kurt-Mothes-Str. 2 06120 Halle (Saale) Germany
| | - Johannes Schettlock
- Institut für Chemie/Anorganische Chemie; Martin-Luther-Universität Halle-Wittenberg; Kurt-Mothes-Str. 2 06120 Halle (Saale) Germany
| | - Stefan G. Ebbinghaus
- Institut für Chemie/Anorganische Chemie; Martin-Luther-Universität Halle-Wittenberg; Kurt-Mothes-Str. 2 06120 Halle (Saale) Germany
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Suram SK, Fackler SW, Zhou L, N’Diaye AT, Drisdell WS, Yano J, Gregoire JM. Combinatorial Discovery of Lanthanum-Tantalum Oxynitride Solar Light Absorbers with Dilute Nitrogen for Solar Fuel Applications. ACS Comb Sci 2018; 20:26-34. [PMID: 29178778 DOI: 10.1021/acscombsci.7b00143] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Oxynitrides with the photoelectrochemical stability of oxides and desirable band energetics of nitrides comprise a promising class of materials for solar photochemistry. Challenges in synthesizing a wide variety of oxynitride materials has limited exploration of this class of functional materials, which we address using a reactive cosputtering combined with rapid thermal processing method to synthesize multi-cation-multi-anion libraries. We demonstrate the synthesis of a LaxTa1-xOyNz thin film composition spread library and its characterization by both traditional thin film materials characterization and custom combinatorial optical spectroscopy and X-ray absorption near edge spectroscopy (XANES) techniques, ultimately establishing structure-chemistry-property relationships. We observe that over a substantial La-Ta composition range the thin films crystallize in the same perovskite LaTaON2 structure with significant variation of anion chemistry. The relative invariance in optical band gap demonstrates a remarkable decoupling of composition and band energetics so that the composition can be optimized while retaining the desirable 2 eV band gap energy. We also demonstrate the intercalation of diatomic nitrogen into the La3TaO7 structure, which gives rise to a direct-allowed optical transition at 2.2 eV, less than half the value of the oxide's band gap. These findings motivate further exploration of the visible light response of this material that is predicted to be stable over a wide range of electrochemical potential.
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Affiliation(s)
- Santosh K. Suram
- Joint
Center for Artificial Photosynthesis, California Institute of Technology, Pasadena, California 91125, United States
| | - Sean W. Fackler
- Joint
Center for Artificial Photosynthesis, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Lan Zhou
- Joint
Center for Artificial Photosynthesis, California Institute of Technology, Pasadena, California 91125, United States
| | - Alpha T. N’Diaye
- Advanced
Light Source, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Walter S. Drisdell
- Joint
Center for Artificial Photosynthesis, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Junko Yano
- Joint
Center for Artificial Photosynthesis, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
- Molecular
Biophysics and Integrated Bioimaging Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - John M. Gregoire
- Joint
Center for Artificial Photosynthesis, California Institute of Technology, Pasadena, California 91125, United States
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Zhou P, Gao HL, Yan SC, Zou ZG. The Kirkendall effect towards oxynitride nanotubes with improved visible light driven conversion of CO2 into CH4. Dalton Trans 2016; 45:3480-5. [DOI: 10.1039/c5dt04124d] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
ZnGaNO nanotubes can be obtained via the Kirkendall effect, exhibiting the high photocatalytic performance due to the short carrier diffusion distance and less crystal defects.
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Affiliation(s)
- P. Zhou
- National Laboratory of Solid State Microstructures
- Eco-Materials and Renewable Energy Research Center (ERERC)
- School of Physics
- Nanjing University
- Nanjing
| | - H. L. Gao
- Collaborative Innovation Center of Advanced Microstructures
- College of Engineering and Applied Sciences
- Nanjing University
- Nanjing
- PR China
| | - S. C. Yan
- Collaborative Innovation Center of Advanced Microstructures
- College of Engineering and Applied Sciences
- Nanjing University
- Nanjing
- PR China
| | - Z. G. Zou
- National Laboratory of Solid State Microstructures
- Eco-Materials and Renewable Energy Research Center (ERERC)
- School of Physics
- Nanjing University
- Nanjing
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Abstract
This review specifically summarizes the recent development of perovskite photocatalysts and their applications in water splitting and environmental remediation.
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Affiliation(s)
- Guan Zhang
- School of Civil and Environmental Engineering
- Harbin Institute of Technology (Shenzhen)
- Shenzhen 518055
- China
- School of Chemistry
| | - Gang Liu
- Institute of Metal Research
- Chinese Academy of Sciences
- Shenyang 110016
- China
| | - Lianzhou Wang
- School of Chemical Engineering
- The University of Queensland
- Brisbane
- Australia
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Landsmann S, Maegli AE, Trottmann M, Battaglia C, Weidenkaff A, Pokrant S. Design Guidelines for High-Performance Particle-Based Photoanodes for Water Splitting: Lanthanum Titanium Oxynitride as a Model. ChemSusChem 2015; 8:3451-3458. [PMID: 26360811 DOI: 10.1002/cssc.201500830] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2015] [Indexed: 06/05/2023]
Abstract
Semiconductor powders are perfectly suited for the scalable fabrication of particle-based photoelectrodes, which can be used to split water using the sun as a renewable energy source. This systematic study is focused on variation of the electrode design using LaTiO2 N as a model system. We present the influence of particle morphology on charge separation and transport properties combined with post-treatment procedures, such as necking and size-dependent co-catalyst loading. Five rules are proposed to guide the design of high-performance particle-based photoanodes by adding or varying several process steps. We also specify how much efficiency improvement can be achieved using each of the steps. For example, implementation of a connectivity network and surface area enhancement leads to thirty times improvement in efficiency and co-catalyst loading achieves an improvement in efficiency by a factor of seven. Some of these guidelines can be adapted to non-particle-based photoelectrodes.
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Affiliation(s)
- Steve Landsmann
- Laboratory Materials for Energy Conversion, Empa, Swiss Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, Dübendorf, Switzerland.
| | - Alexandra E Maegli
- Institute of Non-Metallic Materials, Clausthal University of Technology, Zehntnerstrasse 2a, 38678, Clausthal-Zellerfeld, Germany
| | - Matthias Trottmann
- Laboratory Materials for Energy Conversion, Empa, Swiss Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, Dübendorf, Switzerland
| | - Corsin Battaglia
- Laboratory Materials for Energy Conversion, Empa, Swiss Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, Dübendorf, Switzerland
| | - Anke Weidenkaff
- Institute for Material Science, University of Stuttgart, Heisenbergstraße 3, 70569, Stuttgart, Germany
| | - Simone Pokrant
- Laboratory Materials for Energy Conversion, Empa, Swiss Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, Dübendorf, Switzerland
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Florea M, Alifanti M, Kuncser V, Macovei D, Apostol N, Granger P, Parvulescu VI. Evidence of A–B site cooperation in the EuFeO3 perovskite from 151Eu and 57Fe Mössbauer spectroscopy, EXAFS, and toluene catalytic oxidation. J Catal 2014; 316:130-40. [DOI: 10.1016/j.jcat.2014.04.016] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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He F, Chen G, Yu Y, Hao S, Zhou Y, Zheng Y. Facile approach to synthesize g-PAN/g-C3N4 composites with enhanced photocatalytic H2 evolution activity. ACS Appl Mater Interfaces 2014; 6:7171-9. [PMID: 24797448 DOI: 10.1021/am500198y] [Citation(s) in RCA: 105] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Novel composites consisting of graphitized polyacrylonitrile (g-PAN) nanosheets grown on layered g-C3N4 sheets were synthesized through a facile one-step thermal condensation of PAN and melamine for the first time. Photoluminescence spectroscopy and the photoelectrochemical measurements reveal that g-PAN nanosheets act as effective electron transfer channels to facilitate charge carrier separation in g-PAN/g-C3N4 composites. The g-PAN/g-C3N4 composites exhibit significantly enhanced visible-light photocatalytic performance for H2 evolution over pristine g-C3N4. The 5.0 wt % g-PAN/g-C3N4 composite has optimal H2 evolution rate of 37 μmol h(-1), exceeding 3.8 times over pristine g-C3N4. We have proposed a possible mechanism for charge separation and transfer in the g-PAN/g-C3N4 composites to explain the enhanced photocatalytic performance.
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Affiliation(s)
- Fang He
- Department of Chemistry, Harbin Institute of Technology , Harbin 150001, P.R. China
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Maegli AE, Sagarna L, Populoh S, Penkala B, Otal EH, Weidenkaff A. Optical and transport properties of LaTi1−xMx(O,N)3±δ (x=0; 0.1, M=Nb5+, W6+) thin films prepared by plasma ammonolysis. J SOLID STATE CHEM 2014. [DOI: 10.1016/j.jssc.2013.12.008] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Maegli AE, Hisatomi T, Otal EH, Yoon S, Pokrant S, Grätzel M, Weidenkaff A. Structural and photocatalytic properties of perovskite-type (La,Ca)Ti(O,N)3 prepared from A-site deficient precursors. ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c2jm32718j] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Maegli AE, Otal EH, Hisatomi T, Yoon S, Leroy CM, Schäuble N, Lu Y, Grätzel M, Weidenkaff A. Perovskite-Type LaTiO2N Oxynitrides for Solar Water Splitting: Influence of the Synthesis Conditions. ACTA ACUST UNITED AC 2012. [DOI: 10.1016/j.egypro.2012.05.218] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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Maegli A, Yoon S, Otal E, Karvonen L, Mandaliev P, Weidenkaff A. Perovskite-type SrTi1−xNbx(O,N)3 compounds: Synthesis, crystal structure and optical properties. J SOLID STATE CHEM 2011; 184:929-36. [DOI: 10.1016/j.jssc.2011.02.017] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Siritanaratkul B, Maeda K, Hisatomi T, Domen K. Synthesis and photocatalytic activity of perovskite niobium oxynitrides with wide visible-light absorption bands. ChemSusChem 2011; 4:74-78. [PMID: 21226214 DOI: 10.1002/cssc.201000207] [Citation(s) in RCA: 88] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2010] [Indexed: 05/30/2023]
Abstract
Photocatalytic activities of perovskite-type niobium oxynitrides (CaNbO₂N, SrNbO₂N, BaNbO₂N, and LaNbON₂) were examined for hydrogen and oxygen evolution from water under visible-light irradiation. These niobium oxynitrides were prepared by heating the corresponding oxide precursors, which were synthesized using the polymerized complex method, for 15 h under a flow of ammonia. They possess visible-light absorption bands between 600-750 nm, depending on the A-site cations in the structures. The oxynitride CaNbO₂N, was found to be active for hydrogen and oxygen evolution from methanol and aqueous AgNO₃, respectively, even under irradiation by light at long wavelengths (λ<560 nm). The nitridation temperature dependence of CaNbO₂N was investigated and 1023 K was found to be the optimal temperature. At lower temperatures, the oxynitride phase is not adequately produced, whereas higher temperatures produce more reduced niobium species (e. g., Nb³(+) and Nb⁴(+)), which can act as electron-hole recombination centers, resulting in a decrease in activity.
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Yan S, Wang Z, Li Z, Zou Z. Two-step reactive template route to a mesoporous ZnGaNO solid solution for improved photocatalytic performance. ACTA ACUST UNITED AC 2011. [DOI: 10.1039/c1jm10103j] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Logvinovich D, Ebbinghaus S, Reller A, Marozau I, Ferri D, Weidenkaff A. Synthesis, Crystal Structure and Optical Properties of LaNbON2. Z Anorg Allg Chem 2010. [DOI: 10.1002/zaac.201000067] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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17
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Ebbinghaus SG, Abicht H, Dronskowski R, Müller T, Reller A, Weidenkaff A. Perovskite-related oxynitrides – Recent developments in synthesis, characterisation and investigations of physical properties. PROG SOLID STATE CH 2009; 37:173-205. [DOI: 10.1016/j.progsolidstchem.2009.11.003] [Citation(s) in RCA: 253] [Impact Index Per Article: 16.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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