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Kumar Sahu A, Yadav S, Banerjee D, Rufford TE, Upadhyayula S. Accelerating Charge Separation and CO 2 Photoreduction in Aqueous Phase under Visible Light with Ru Nanoparticles Loaded on Ga-Doped NiTiO 3 in a Batch Photoreactor. ACS APPLIED MATERIALS & INTERFACES 2024; 16:7057-7069. [PMID: 38308562 DOI: 10.1021/acsami.3c15915] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2024]
Abstract
Titanate perovskite (ATiO3) semiconductors show prospects of being active photocatalysts in the conversion of CO2 to chemical fuels such as methanol (CH3OH) in the aqueous phase. Some of the challenges in using ATiO3 are limited light-harvesting capability, rapid bulk charge recombination, and the low density of catalytic sites participating in CO2 reduction. To address these challenges, Ga-doped NiTiO3 (GNTO) photocatalysts in which Ga ions substitute for Ti ions in the crystal lattice to form electron trap states and oxygen vacancies have been synthesized in this work. The synthesized GNTO was then loaded with Ru nanoparticles to accelerate charge separation and enable excellent CO2 photoreduction activity under visible light. CO2 photoreduction was conducted in a batch photoreactor charged with a 0.1 M NaHCO3 aqueous solution at room temperature and a 3.5 bar pressure using a 1.0 wt % Ru-GNTO photocatalyst to yield methanol at a rate of 84.45 μmol g-1 h-1. A small amount of methane was produced as a side product at 21.35 μmol g-1 h-1, which is also a fuel molecule. We attribute this high catalytic activity toward CO2 photoreduction to a synergistic combination of our novel heterostructured 1.0 wt % Ru-GNTO photocatalyst and the implementation of a pressurized photoreactor. This work demonstrates an effective strategy for metal doping with active nanospecies functionality to improve the performance of ATiO3 photocatalysts in valorizing CO2 to solar fuels.
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Affiliation(s)
- Aloka Kumar Sahu
- The University of Queensland─IIT Delhi Academy of Research (UQIDAR), Hauz Khas 110016, New Delhi, India
- Department of Chemical Engineering, Indian Institute of Technology Delhi, Hauz Khas 110016, New Delhi, India
- School of Chemical Engineering, The University of Queensland, Brisbane QLD 4072, St Lucia, Australia
| | - Sushant Yadav
- Department of Chemical Engineering, Indian Institute of Technology Delhi, Hauz Khas 110016, New Delhi, India
| | - Debarun Banerjee
- Department of Chemical Engineering, Indian Institute of Technology Delhi, Hauz Khas 110016, New Delhi, India
| | - Thomas E Rufford
- School of Chemical Engineering, The University of Queensland, Brisbane QLD 4072, St Lucia, Australia
- ARC Centre of Excellence for Green Electrochemical Transformation of Carbon Dioxide, The University of Queensland, Brisbane QLD 4072, St Lucia, Australia
| | - Sreedevi Upadhyayula
- Department of Chemical Engineering, Indian Institute of Technology Delhi, Hauz Khas 110016, New Delhi, India
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2
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Balan B, Xavier MM, Mathew S. MoS 2-Based Nanocomposites for Photocatalytic Hydrogen Evolution and Carbon Dioxide Reduction. ACS OMEGA 2023; 8:25649-25673. [PMID: 37521597 PMCID: PMC10373465 DOI: 10.1021/acsomega.3c02084] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Accepted: 06/27/2023] [Indexed: 08/01/2023]
Abstract
Photocatalysis is a facile and sustainable approach for energy conversion and environmental remediation by generating solar fuels from water splitting. Due to their two-dimensional (2D) layered structure and excellent physicochemical properties, molybdenum disulfide (MoS2) has been effectively utilized in photocatalytic H2 evolution reaction (HER) and CO2 reduction. The photocatalytic efficiency of MoS2 greatly depends on the active edge sites present in their layered structure. Modifications like reducing the layer numbers, creating defective structures, and adopting different morphologies produce more unsaturated S atoms as active edge sites. Hence, MoS2 acts as a cocatalyst in nanocomposites/heterojunctions to facilitate the photogenerated electron transfer. This review highlights the role of MoS2 as a cocatalyst for nanocomposites in H2 evolution reaction and CO2 reduction. The H2 evolution activity has been described comprehensively as binary (with metal oxide, carbonaceous materials, metal sulfides, and metal-organic frameworks) and ternary composites of MoS2. Photocatalytic CO2 reduction is a more complex and challenging process that demands an efficient light-responsive semiconductor catalyst to tackle the thermodynamic and kinetic factors. Photocatalytic reduction of CO2 using MoS2 is an emerging topic and would be a cost-effective substitute for noble catalysts. Herein, we also exclusively envisioned the possibility of layered MoS2 and its composites in this area. This review is expected to furnish an understanding of the diverse roles of MoS2 in solar fuel generation, thus endorsing an interest in utilizing this unique layered structure to create nanostructures for future energy applications.
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Affiliation(s)
- Bhagyalakshmi Balan
- School
of Chemical Sciences, Mahatma Gandhi University, Kottayam, Kerala 686 560, India
| | - Marilyn Mary Xavier
- School
of Chemical Sciences, Mahatma Gandhi University, Kottayam, Kerala 686 560, India
| | - Suresh Mathew
- School
of Chemical Sciences, Mahatma Gandhi University, Kottayam, Kerala 686 560, India
- Advanced
Molecular Materials Research Centre (AMMRC), Mahatma Gandhi University, Kottayam, Kerala 686 560, India
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3
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Yanagi R, Zhao T, Cheng M, Liu B, Su H, He C, Heinlein J, Mukhopadhyay S, Tan H, Solanki D, Hu S. Photocatalytic CO 2 Reduction with Dissolved Carbonates and Near-Zero CO 2(aq) by Employing Long-Range Proton Transport. J Am Chem Soc 2023. [PMID: 37399530 DOI: 10.1021/jacs.3c03281] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/05/2023]
Abstract
Photocatalytic CO2 reduction (CO2R) in ∼0 mM CO2(aq) concentration is challenging but is relevant for capturing CO2 and achieving a circular carbon economy. Despite recent advances, the interplay between the CO2 catalytic reduction and the oxidative redox processes that are arranged on photocatalyst surfaces with nanometer-scale distances is less studied. Specifically, mechanistic investigation on interdependent processes, including CO2 adsorption, charge separation, long-range chemical transport (∼100 nm distance), and bicarbonate buffer speciation, involved in photocatalysis is urgently needed. Photocatalytic CO2R in ∼0 mM CO2(aq), which has important applications in integrated carbon capture and utilization (CCU), has rarely been studied. Using 0.1 M KHCO3 (aq) of pH 7 but without continuously bubbling CO2, we achieved ∼0.1% solar-to-fuel conversion efficiency for CO production using Ag@CrOx nanoparticles that are supported on a coating-protected GaInP2 photocatalytic panel. CO is produced at ∼100% selectivity with no detectable H2, even with copious protons co-generated nearby. CO2 flux to the Ag@CrOx CO2R sites enhances CO2 adsorption, probed by in situ Raman spectroscopy. CO is produced with local protonation of dissolved inorganic carbon species in a pH as high as 11.5 when using fast electron donors such as ethanol. Isotopic labeling using KH13CO3 was used to confirm the origin of CO from the bicarbonate solution. We then employed COMSOL Multiphysics modeling to simulate the spatial and temporal pH variation and the local concentrations of bicarbonates and CO2(aq). We found that light-driven CO2R and CO2 reactive transport are mutually dependent, which is important for further understanding and manipulating CO2R activity and selectivity. This study enables direct bicarbonate utilization as the source of CO2, thereby achieving CO2 capture and conversion without purifying and feeding gaseous CO2.
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Affiliation(s)
- Rito Yanagi
- Department of Chemical and Environmental Engineering, School of Engineering and Applied Sciences, Yale University, New Haven, Connecticut 06520, United States
- Energy Sciences Institute, Yale West Campus, West Haven, Connecticut 06516, United States
| | - Tianshuo Zhao
- Department of Chemical and Environmental Engineering, School of Engineering and Applied Sciences, Yale University, New Haven, Connecticut 06520, United States
- Energy Sciences Institute, Yale West Campus, West Haven, Connecticut 06516, United States
| | - Matthew Cheng
- Department of Chemical and Environmental Engineering, School of Engineering and Applied Sciences, Yale University, New Haven, Connecticut 06520, United States
- Energy Sciences Institute, Yale West Campus, West Haven, Connecticut 06516, United States
| | - Bin Liu
- Department of Chemical and Environmental Engineering, School of Engineering and Applied Sciences, Yale University, New Haven, Connecticut 06520, United States
- Energy Sciences Institute, Yale West Campus, West Haven, Connecticut 06516, United States
| | - Haoqing Su
- Department of Chemical and Environmental Engineering, School of Engineering and Applied Sciences, Yale University, New Haven, Connecticut 06520, United States
- Energy Sciences Institute, Yale West Campus, West Haven, Connecticut 06516, United States
| | - Chengxing He
- Department of Chemical and Environmental Engineering, School of Engineering and Applied Sciences, Yale University, New Haven, Connecticut 06520, United States
- Energy Sciences Institute, Yale West Campus, West Haven, Connecticut 06516, United States
| | - Jake Heinlein
- Department of Chemical and Environmental Engineering, School of Engineering and Applied Sciences, Yale University, New Haven, Connecticut 06520, United States
- Energy Sciences Institute, Yale West Campus, West Haven, Connecticut 06516, United States
| | - Shomeek Mukhopadhyay
- Department of Chemical and Environmental Engineering, School of Engineering and Applied Sciences, Yale University, New Haven, Connecticut 06520, United States
| | - Haiyan Tan
- Institute of Materials Science, University of Connecticut, Storrs, Connecticut 06269, United States
| | - Devan Solanki
- Department of Chemical and Environmental Engineering, School of Engineering and Applied Sciences, Yale University, New Haven, Connecticut 06520, United States
- Energy Sciences Institute, Yale West Campus, West Haven, Connecticut 06516, United States
| | - Shu Hu
- Department of Chemical and Environmental Engineering, School of Engineering and Applied Sciences, Yale University, New Haven, Connecticut 06520, United States
- Energy Sciences Institute, Yale West Campus, West Haven, Connecticut 06516, United States
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4
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Kalra P, Ghosh D, Ingole PP. Favoring Product Desorption by a Tailored Electronic Environment of Oxygen Vacancies in SrTiO 3 via Cr Doping for Enhanced and Selective Electrocatalytic CO 2 to CO Conversion. ACS APPLIED MATERIALS & INTERFACES 2023. [PMID: 37314759 DOI: 10.1021/acsami.3c04190] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The electrochemical CO2 reduction reaction (ECO2RR) into value-added products is crucial to address the herculean task of CO2 mitigation. Several efforts are being made to develop active ECO2RR catalysts, targeting enhanced CO2 adsorption and activation. A rational design of ECO2RR catalysts with a facile product desorption step is seldom reported. Herein, ensuing the Sabatier principle, we report a strategy for an enhanced ECO2RR with a faradaic efficiency of 85% for CO production by targeting the product desorption step. The energy barrier for product desorption was lowered via a tailored electronic environment of oxygen vacancies (Ovac) in Cr-doped SrTiO3. The substitutional doping of Cr3+ for Ti4+ into the SrTiO3 lattice favors the generation of more Ovac and modifies the local electronic environment. Density functional theory analysis evinces the spontaneous dissociation of COOH# intermediates over Ovac and lower CO intermediate binding on Ovac reducing the energy demand for CO release due to Cr doping.
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Affiliation(s)
- Paras Kalra
- Department of Chemistry, Indian Institute of Technology Delhi, New Delhi 110016, India
| | - Dibyajyoti Ghosh
- Department of Chemistry, Indian Institute of Technology Delhi, New Delhi 110016, India
- Department of Materials Science and Engineering, Indian Institute of Technology Delhi, New Delhi 110016, India
| | - Pravin P Ingole
- Department of Chemistry, Indian Institute of Technology Delhi, New Delhi 110016, India
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5
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Zhu Z, Xuan Y, Liu X, Zhu Q. Revealing the stochastic kinetics evolution of photocatalytic CO 2 reduction. NANOSCALE 2023; 15:730-741. [PMID: 36520137 DOI: 10.1039/d2nr05413b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Investigating kinetic mechanisms to design efficient photocatalysts is critical for improving photocatalytic CO2 reduction, but the stochastic photo-physical/chemical properties of kinetics remain unclear. Herein, we propose a statistical study to discuss the stochastic feature evolution of photocatalytic systems. The uncertainties of light absorption, charge carrier migration, and surface reaction are described by nonparametric estimation methods in the proposed model, which includes the effect of operational and material parameters. The density distribution of surface electrons shifts from a skewed distribution to an approximate uniform distribution as incident photon density increases. The system temperature rising induces the rate-determining step of surface reactions to change from charge carrier kinetics to reactant activation processes. Benefiting from the synergistic optimization between the operational parameter and active site density, the electron-capturing probability of active sites is boosted from 0.06 to 0.17. The modified reaction kinetic equation is constructed based on the distribution function of charge carrier kinetics. Furthermore, the experimental photoactivity results are consistent with the statistical analysis, which proves the feasibility of the established model. The characterization tests show that the gap between testing activities and theoretical efficiency is caused by a mismatch between charge carrier supply and mass transfer. Our work unveils the stochastic features in photocatalytic CO2 reduction, offering a comprehensive analytical framework for photocatalytic system optimization.
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Affiliation(s)
- Zhonghui Zhu
- School of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China.
| | - Yimin Xuan
- School of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China.
- Integrated Energy Research Institute, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
| | - Xianglei Liu
- School of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China.
- Integrated Energy Research Institute, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
| | - Qibin Zhu
- School of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China.
- Integrated Energy Research Institute, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
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6
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Ahamad T, Alshehri SM. Fabrication of Ag@SrTiO3/g-C3N4 heterojunctions for H2 production and the degradation of pesticides under visible light. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.121431] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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7
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Zhu X, Miao H, Chen J, Zhu X, Yi J, Mo Z, Li H, Zheng Z, Huang B, Xu H. Facet-dependent CdS/Bi 4TaO 8Cl Z-scheme heterojunction for enhanced photocatalytic tetracycline hydrochloride degradation and the carrier separation mechanism study via single-particle spectroscopy. Inorg Chem Front 2022. [DOI: 10.1039/d2qi00311b] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An efficient lateral Z-scheme CdS/Bi4TaO8Cl photocatalyst based on the facet-dependent charge separation mechanism and the bandgap structure characteristic was designed.
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Affiliation(s)
- Xianglin Zhu
- Institute for Energy Research, Jiangsu University, Zhenjiang, Jiangsu 212013, P. R. China
| | - Honghai Miao
- Institute for Energy Research, Jiangsu University, Zhenjiang, Jiangsu 212013, P. R. China
| | - Jinzhou Chen
- Institute for Energy Research, Jiangsu University, Zhenjiang, Jiangsu 212013, P. R. China
| | - Xingwang Zhu
- College of Environmental Science and Engineering, Yangzhou University, Yangzhou, Jiangsu 225009, P. R. China
| | - Jianjian Yi
- College of Environmental Science and Engineering, Yangzhou University, Yangzhou, Jiangsu 225009, P. R. China
| | - Zhao Mo
- Institute for Energy Research, Jiangsu University, Zhenjiang, Jiangsu 212013, P. R. China
| | - Huaming Li
- Institute for Energy Research, Jiangsu University, Zhenjiang, Jiangsu 212013, P. R. China
| | - Zhaoke Zheng
- State Key Laboratory of Crystal Materials, Shandong University, Jinan, Shandong 250100, P. R. China
| | - Baibiao Huang
- State Key Laboratory of Crystal Materials, Shandong University, Jinan, Shandong 250100, P. R. China
| | - Hui Xu
- Institute for Energy Research, Jiangsu University, Zhenjiang, Jiangsu 212013, P. R. China
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8
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BaTi4O9 Photocatalysts with Variously Loaded Ag Cocatalyst for Highly Selective Photocatalytic CO2 Reduction with Water. Catal Letters 2021. [DOI: 10.1007/s10562-021-03831-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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9
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Qin Y, Fang F, Xie Z, Lin H, Zhang K, Yu X, Chang K. La,Al-Codoped SrTiO 3 as a Photocatalyst in Overall Water Splitting: Significant Surface Engineering Effects on Defect Engineering. ACS Catal 2021. [DOI: 10.1021/acscatal.1c02874] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Yalei Qin
- College of Materials Science and Technology, Jiangsu Key Laboratory of Electrochemical Energy Storage Technologies, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, PR China
| | - Fan Fang
- College of Materials Science and Technology, Jiangsu Key Laboratory of Electrochemical Energy Storage Technologies, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, PR China
| | - Zhengzheng Xie
- College of Materials Science and Technology, Jiangsu Key Laboratory of Electrochemical Energy Storage Technologies, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, PR China
| | - Huiwen Lin
- College of Materials Science and Technology, Jiangsu Key Laboratory of Electrochemical Energy Storage Technologies, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, PR China
| | - Kai Zhang
- College of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, PR China
| | - Xu Yu
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, PR China
| | - Kun Chang
- College of Materials Science and Technology, Jiangsu Key Laboratory of Electrochemical Energy Storage Technologies, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, PR China
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Wang S, Teramura K, Hisatomi T, Domen K, Asakura H, Hosokawa S, Tanaka T. Dual Ag/Co cocatalyst synergism for the highly effective photocatalytic conversion of CO 2 by H 2O over Al-SrTiO 3. Chem Sci 2021; 12:4940-4948. [PMID: 34163741 PMCID: PMC8179546 DOI: 10.1039/d1sc00206f] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Loading Ag and Co dual cocatalysts on Al-doped SrTiO3 (AgCo/Al-SrTiO3) led to a significantly improved CO-formation rate and extremely high selectivity toward CO evolution (99.8%) using H2O as an electron donor when irradiated with light at wavelengths above 300 nm. Furthermore, the CO-formation rate over AgCo/Al-SrTiO3 (52.7 μmol h−1) was a dozen times higher than that over Ag/Al-SrTiO3 (4.7 μmol h−1). The apparent quantum efficiency for CO evolution over AgCo/Al-SrTiO3 was about 0.03% when photoirradiated at a wavelength at 365 nm, with a CO-evolution selectivity of 98.6% (7.4 μmol h−1). The Ag and Co cocatalysts were found to function as reduction and oxidation sites for promoting the generation of CO and O2, respectively, on the Al-SrTiO3 surface. Deposition Ag and Co dual cocatalysts onto Al-SrTiO3 significantly improves its activity for photoreduction of CO2 by H2O, with extremely high selectivity to CO evolution (99.8%), in which Ag and Co enable CO2 reduction and H2O oxidation, respectively.![]()
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Affiliation(s)
- Shuying Wang
- Department of Molecular Engineering, Graduate School of Engineering, Kyoto University Kyoto 615-8510 Japan
| | - Kentaro Teramura
- Department of Molecular Engineering, Graduate School of Engineering, Kyoto University Kyoto 615-8510 Japan .,Elements Strategy Initiative for Catalysts and Batteries, Kyoto University Kyoto 615-8510 Japan
| | - Takashi Hisatomi
- Research Initiative for Supra-Materials, Shinshu University 4-17-1 Wakasato Nagano 380-8553 Japan
| | - Kazunari Domen
- Research Initiative for Supra-Materials, Shinshu University 4-17-1 Wakasato Nagano 380-8553 Japan.,The University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113-8656 Japan
| | - Hiroyuki Asakura
- Department of Molecular Engineering, Graduate School of Engineering, Kyoto University Kyoto 615-8510 Japan .,Elements Strategy Initiative for Catalysts and Batteries, Kyoto University Kyoto 615-8510 Japan
| | - Saburo Hosokawa
- Department of Molecular Engineering, Graduate School of Engineering, Kyoto University Kyoto 615-8510 Japan .,Elements Strategy Initiative for Catalysts and Batteries, Kyoto University Kyoto 615-8510 Japan
| | - Tsunehiro Tanaka
- Department of Molecular Engineering, Graduate School of Engineering, Kyoto University Kyoto 615-8510 Japan .,Elements Strategy Initiative for Catalysts and Batteries, Kyoto University Kyoto 615-8510 Japan
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