Review Papers (Misc) - IKEDA Shigeru
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Photoelectrochemical hydrogen production from water using copper-based chalcopyrite thin films Invited Reviewed
ChemElectroChem 11 ( 21 ) e202400365-1 - e202400365-12 2024.11
Authorship：Lead author, Corresponding author Publishing type：Article, review, commentary, editorial, etc. (scientific journal)
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Chalcopyrite CuGaSe2 thin film for photoelectrochemical water splitting into hydrogen Invited
S. Ikeda, S. Ishizuka
JSAP Rev. 2023 230413-1 - 230413-5 2023.5
Authorship：Lead author, Corresponding author Publishing type：Article, review, commentary, editorial, etc. (scientific journal)
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A Career in Catalysis: Kazunari Domen Reviewed
A. Kudo, Y. Sakata, J. N. Kondo, M. Hara, J. Kubota, S. Ikeda, T. Takata, R. Abe, A. Takagaki, T. Hisatomi
13 6934 - 6955 2023.5
Publishing type：Article, review, commentary, editorial, etc. (scientific journal)
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水分解水素発生を目的とするカルコパイライト化合物CuGaSe2薄膜の光電極化 Invited
池田 茂, 石塚尚吾
応用物理 92 ( 3 ) 151 - 155 2023.3
Authorship：Lead author, Corresponding author Publishing type：Article, review, commentary, editorial, etc. (other)
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Copper-based kesterite thin films for photoelectrochemical water splitting Invited Reviewed
Shigeru Ikeda
High Temperature Materials and Processes 40 ( 1 ) 446 - 460 2021.12
Authorship：Lead author, Corresponding author Publishing type：Article, review, commentary, editorial, etc. (scientific journal) Publisher：Walter de Gruyter GmbH
<title>Abstract</title>
Copper kesterite Cu<sub>2</sub>ZnSnS<sub>4</sub> is a promising photoabsorber material for solar cells and photoelectrochemical (PEC) water splitting. In this article, we will first review the crystallographic/energetic structures of Cu<sub>2</sub>ZnSnS<sub>4</sub> in view of its applications to sunlight conversion devices. Then, historical progress in photovoltaic properties of Cu<sub>2</sub>ZnSnS<sub>4</sub>-based solar cells is introduced. Finally, studies on PEC H<sub>2</sub> evolution over Cu<sub>2</sub>ZnSnS<sub>4</sub>-based photocathodes are reviewed in detail. For realizing efficient PEC H<sub>2</sub> evolution, surface modifications with an n-type buffer layer (such as CdS) and a catalytic site (such as Pt nanoparticles) were found to be indispensable. Since these surface-modified photocathodes had poor resistances under an operating bias due to the occurrence of oxidative photocorrosion of the CdS layer and elimination of the Pt catalysts, coverage with a protection layer was required to improve the long-term durability. Moreover, partial or complete substitution of the constituent cations with some cations was proved to be effective for improving PEC properties. Although recent studies showed a rapid increase in PEC properties, there is room for further development of PEC properties by using effective combinations among surface protection(s), defect engineering(s), and band engineering(s).Other Link： https://www.degruyter.com/document/doi/10.1515/htmp-2021-0050/html
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水分解光触媒研究の50年 Invited
池田茂
ニューセラミックスレター 74 27 - 28 2021.11
Authorship：Lead author, Corresponding author Publishing type：Article, review, commentary, editorial, etc. (scientific journal)
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太陽エネルギーを化学エネルギーに変換する「人工光合成」技術 Invited
池田茂
ニューセラミックスレター 64 4 - 6 2018.5
Authorship：Lead author, Corresponding author Publishing type：Article, review, commentary, editorial, etc. (scientific journal)
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水の還元による水素発生のための高機能Cuカルコゲナイド光カソードの開発
池田 茂
機能材料 37 ( 4 ) 19 - 24 2017.4
Authorship：Lead author Publishing type：Article, review, commentary, editorial, etc. (trade magazine, newspaper, online media) Publisher：シー・エム・シー
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Investigation of Cu2SnSe3 Preparation by Simultaneous Electrodeposition as Precursor of Cu2ZnSnSe4 Thin Film Solar Cell
Gunawan, Abdul Haris, Didik Stiyo Widodo, Wilman Septina, Shigeru Ikeda
4TH INTERNATIONAL CONFERENCE ON RESEARCH, IMPLEMENTATION, AND EDUCATION OF MATHEMATICS AND SCIENCES (ICRIEMS): RESEARCH AND EDUCATION FOR DEVELOPING SCIENTIFIC ATTITUDE IN SCIENCES AND MATHEMATICS 1868 20005 2017
Publisher：AMER INST PHYSICS
Chalcogenide material of multinary metals are of interest in relation as optoelectronic devices such as laser and solar cell. Cu2SnSe3, ternary chalcogenide, is semiconductor with low bandgap. Beside that Cu2SnSe3 is important precursor for the growth of a promising Cu2ZnSnSe4 thin film solar cell since it contains elements that is abundance in the earth crust. The aim of this work is to synthesis Cu2SnSe3 thin film compound by using simultaneous electrodeposition. The product then was characterized using EDX, XRD, RAMAN and SEM. The result showed that Cu2SnSe3 can be prepared by electrodeposition at a potential of -0.6V vs. Ag/AgCl for 20 min. Arumealing can cause the increase of Cu2SnSe3 sample crystalinity. Annealing in argon atmosphere at 500 degrees C affected selenium evaporation in the film, therefore it improved Cu/Sn ratio. Further, annealing in selenium atmosphere at temperature of 500 degrees C can increase the intensity of Cu2SnSe3 crystal much better and also improve the Se/(Cu+Si) ratio close to ideal value. Spectra of XRD and raman also proved the presence of Cu2SnSe3 in the prepared thin film
DOI： 10.1063/1.4995091
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Cu2ZnSnS4-based Thin Film Solar Cells with More Than 8% Conversion Efficiency Obtained by Using A Spray Pyrolysis Technique
Thi Hiep Nguyen, Takashi Harada, Shuji Nakanishi, Shigeru Ikeda
2016 IEEE 43RD PHOTOVOLTAIC SPECIALISTS CONFERENCE (PVSC) 470 - U1000 2016
Publisher：IEEE
Pure sulfide Cu2ZnSnS4 (CZTS) thin films were fabricated on Mo-coated glass substrate by spray pyrolysis of an aqueous precursor solution containing Cu(NO3)(2), Zn(NO3)(2), Sn(CH3SO3)(2) and thiourea followed by sulfurization at 600 degrees C for 30 min. Cu composition was controlled by varying Cu concentration in the precursor solution for optimization. It was found that Cu composition affected to not only structure but also morphology of CZTS films. At an optimal composition, we obtained a CZTS-based solar cell with maximum conversion efficiency of more than 8 %.
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多孔質カーボン粒子に内包した貴金属ナノ粒子の合成と触媒機能
原田隆史, 池田 茂
触媒 57 ( 4 ) 227 - 232 2015.8
Authorship：Lead author Publishing type：Article, review, commentary, editorial, etc. (international conference proceedings) Publisher：触媒学会
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CIGS，CZTS形成用非真空プロセス
池田 茂
表面技術 66 ( 4 ) 126 - 130 2015.4
Authorship：Lead author Publishing type：Article, review, commentary, editorial, etc. (international conference proceedings) Publisher：表面技術協会
DOI： 10.4139/sfj.66.126
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電気めっきおよび硫化により作製したCZTS光カソードの光電気化学特性
篠原雄貴, MA Guijun, 池田茂, 嶺岸耕, 久保田純, 堂免一成
日本化学会講演予稿集 95th ( 2 ) 386 2015.3
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Shigeru Ikeda, Midori Nonogaki, Wilman Septina, Gunawan Gunawan, Takashi Harada, Michio Matsumura
Advanced Materials Research 894 427 - 431 2014
Polycrystalline CuInS2 chalcopyrite thin films were formed on a Mo-coated glass substrate by annealing of a spray deposited precursor film in a sulfur atmosphere at 600 °C. Partial incorporation of Ga in the CuInS2 film with a Ga/In ratio of ca. 0.2 to form a Cu(In,Ga)S2 mixed crystal was also prepared. Photoelectrochemical (PEC) analyses revealed that the Ga incorporation was effective to modulate electric and semiconductive properties of the chalcopyrite film. As a result, relatively large cathodic photocurrent responses in PEC analyses as well as high photovoltaic properties of a solar cell based on the Cu(In,Ga)S2 film were obtained. © (2014) Trans Tech Publications, Switzerland.
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非真空プロセスで作製できる無機薄膜太陽電池の開発
池田 茂, 松村道雄
機能材料 33 ( 3 ) 4 - 10 2013.3
Authorship：Lead author Publishing type：Article, review, commentary, editorial, etc. (trade magazine, newspaper, online media) Publisher：シー・エム・シー
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CuSbS2-based thin film solar cells prepared from electrodeposited metallic stacks composed of Cu and Sb layers
Shigeru Ikeda, Yuta Iga, Wilman Septina, Takashi Harada, Michio Matsumura
Conference Record of the IEEE Photovoltaic Specialists Conference 2598 - 2601 2013
Publisher：Institute of Electrical and Electronics Engineers Inc.
Polycrystalline copper antimony sulfide (CuSbS2) films were fabricated by sulfurization of electrodeposited metallic stacks of Cu and Sb layers with various Cu/Sb atomic ratios at 450°C in H2S (5% in Ar). Structural analyses using X-ray diffraction revealed that CuSbS2 films obtained from Cu-poor and Cu-rich metallic stacks (Cu/Sb = 0.7 and 1.3) contained impurity phases, whereas single-phase CuSbS2 film was formed from the stoichiometric stack (Cu/Sb = 1). Morphological studies using SEM indicated that adherence of thus-formed CuSbS2 films to the Mo substrate was dependent on the precursor composition: a CuSbS2 film with poor adherence having many crevices was formed when the Cu-rich metallic stack was used, while CuSbS2 films with good adherences were obtained when Cu-poor and stoichiometric metallic stacks were used. Performance of solar cells with an Al:ZnO/CdS/CuSbS2/Mo structure also depended on structural characteristics of these CuSbS2 films, i.e., a preliminary conversion efficiency of ca. 3% was obtained for device based on the CuSbS 2 film obtained from the stoichiometric metallic stack, whereas the devices derived from Cu-poor and Cu-rich metallic stacks showed the conversion efficiency less than 1%. © 2013 IEEE.
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Electrochemical Synthesis of CU2ZnSnS4 and CU2ZnSnSe4 Thin Films for Solar Cells
Shigeru Ikeda, Witman Septina, Yixin Lin, Akio Kyoraiseki, Takashi Harada, Michio Matsumura
PROCEEDINGS OF 2013 INTERNATIONAL RENEWABLE AND SUSTAINABLE ENERGY CONFERENCE (IRSEC) 1 - 4 2013
Publisher：IEEE
CU2ZnSnS4 (CZTS) and CU2ZnSnSe4 (CZTSe) thin films were fabricated by successive electrodeposition of layers of precursor elements followed by sulfurization and selenization of an electrodeposited Cu-Zn-Sn-Se precursor. It is known that the Sn layer tends to have an island-shaped morphology, leading to formation of inhomogeneous CZTS films with rough surface. In order to improve qualities of the CZTS film, we tried to optimize the deposition condition of Sn layers. As a result, we were able to deposit Sn layers with improved morphologies. A CZTS solar cell fabricated using the Sn layer showed energy conversion efficiency of 4.4%. We also fabricated CZTSe films using Cu-Zn-Sn-Se films made by one-step electrochemical deposition as the precursor films. These films were converted into CZTS films by anneling in Ar. However, the annealing induced significant losses of Sn and Se components. These losses could be suppressed by introduction of Se vapor into the Ar atmosphere. The solar cells based on CZTSe films prepared by these methods exhibited appreciable properties.
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A perspective on fabricating carbon-based nanomaterials by photocatalysis and their applications
Yun Hau Ng, Shigeru Ikeda, Michio Matsumura, Rose Amal
ENERGY & ENVIRONMENTAL SCIENCE 5 ( 11 ) 9307 - 9318 2012.11
Publisher：ROYAL SOC CHEMISTRY
Combining semiconductor photocatalysts with carbon nanostructures has been extensively investigated due to their enhanced photochemical conversion activity. While many nanocomposite synthesis methods have been reported, the emerging use of photocatalytic reactions in synthesizing these carbon-based semiconductor composites and even pure carbon nanomaterials is increasingly capturing the attention of the research community. Being categorized under photocatalysis, these carbon-based nanomaterials are designed by either utilizing the conduction band electron or valence band hole of a photocatalyst. This perspective surveys the literature, discusses the principle of the method and highlights the recent progress in the development of this synthetic method. Ongoing challenges and new possible solutions encountered in this research area are outlined.
DOI： 10.1039/c2ee22128d
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On effective locations of catalytic active sites in phase boundary catalysts
Hadi Nur, Nur Hidayah Mohd Ran, Nursyafreena Attan, Shigeru Ikeda, Bunsho Ohtani
ITB Journal of Science 44 ( 2 ) 152 - 163 2012
Zeolite loaded with alkylsilane-covered titanium oxide was found to be more effective than its nonporous silica counterpart as phase-boundary catalyst (PBC) to promote epoxidation of alkenes with aqueous hydrogen peroxide. It was demonstrated that the phase-boundary catalyst system required neither stirring to make an emulsion, nor addition of a cosolvent to make a homogeneous solution to drive the reaction. However, some basic facts about them remain unclear, such as the question as to where an effective location of the active sites of PBC resides: is it on the external surface of the catalysts, or in their pores? In order to elucidate this problem, TS-1, HZSM-5 and zeolite loaded with alkylsilane-covered sulfonic acid in which the location of the active sites is mainly inside the pore system, were chosen as model catalysts. Catalytic activities of the catalysts TS-1 and HZSM-5 were examined after modification with n-octadecyltrichlorosilane (ODS). Their activities were compared with zeolite loaded with alkylsilane-covered titanium oxide particles, in which the active sites are on the external surface in reactions of 1-octene with aqueous H2O2 and cyclohexene with water as model reactions. The study suggests that the location of the active sites on the external surface plays an important role in the phenomenon of phase-boundary catalysis. © 2012 Published by LPPM ITB.
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太陽電池における新技術－非真空プロセスで製造できる無機薄膜太陽電池－
池田 茂, 松村道雄
科学と工業 85 ( 9 ) 385 - 390 2011.9
Authorship：Lead author Publishing type：Article, review, commentary, editorial, etc. (scientific journal) Publisher：大阪工研協会
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電気化学法により作製したカルコパイライト化合物薄膜による太陽光変換
池田 茂
会報光触媒 34 28 - 33 2011.5
Authorship：Lead author Publishing type：Article, review, commentary, editorial, etc. (international conference proceedings) Publisher：光機能材料研究会
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池田茂, 中村隆幸, 原田隆史, 野々垣翠, 嶺岸耕, 堂免一成, 松村道雄
触媒討論会討論会A予稿集 107th 83 2011.3
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中空シリカに内包された酸化チタンの創製とその光触媒特性
池田 茂
触媒 52 ( 8 ) 588 - 592 2010.12
Authorship：Lead author Publishing type：Article, review, commentary, editorial, etc. (international conference proceedings) Publisher：触媒学会
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半導体光触媒を用いた水分解水素製造
池田 茂
光技術コンタクト 47 ( 12 ) 9 - 15 2009.12
Authorship：Lead author Publishing type：Article, review, commentary, editorial, etc. (scientific journal) Publisher：光学工業技術協会
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触媒を利用したシリコンのエッチングと太陽電池製造工程等への応用
李 佳龍, 池田 茂, 松村道雄
生産と技術 61 ( 2 ) 27 - 31 2009.2
Authorship：Lead author Publishing type：Article, review, commentary, editorial, etc. (scientific journal) Publisher：大阪大学生産技術研究会
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「２つのかお」をもつ粒子の合成と機能
池田 茂
表面 46 ( 12 ) 16 - 24 2008.12
Authorship：Lead author Publishing type：Article, review, commentary, editorial, etc. (trade magazine, newspaper, online media) Publisher：広信社
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Fabrication and Photocatalytic Function of Titanium(IV) Oxide Encapsulated in Hollow Silica
Materials Integration 21 ( 8 ) 31 - 35 2008.8
Authorship：Lead author Publishing type：Article, review, commentary, editorial, etc. (trade magazine, newspaper, online media)
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構造を制御した光触媒による有機合成の試み
大谷文章, 鳥本 司, 池田 茂
ファインケミカル 36 ( 11 ) 57 - 65 2007.11
Authorship：Lead author Publishing type：Article, review, commentary, editorial, etc. (scientific journal) Publisher：シー・エム・シー
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金属の光析出反応にみる光触媒反応の基礎・応用研究の最近の展開
池田 茂
光化学 38 ( 1 ) 22 - 28 2007.4
Authorship：Lead author Publishing type：Article, review, commentary, editorial, etc. (international conference proceedings) Publisher：光化学協会
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界面光触媒反応系の設計と開発
池田 茂, 大谷文章
ケミカルエンジニヤリング 48 ( 11 ) 823 - 827 2003.11
Authorship：Lead author Publishing type：Article, review, commentary, editorial, etc. (trade magazine, newspaper, online media) Publisher：化学工業社
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Photocatalytic organic syntheses: selective cyclization of amino acids in aqueous suspensions
B. Ohtani, B. Pal, S. Ikeda
Catalysis Surveys from Asia 7 ( 2-3 ) 823 - 827 2003.9
Publisher：KLUWER ACADEMIC/PLENUM PUBL
Photocatalytic reactions occurring at semiconductor particles/solution interfaces can be applied to organic syntheses. In this review article, examples of photocatalytic syntheses of cyclic amino acids by suspended semiconductor particles, e.g., titanium(IV) oxide or cadmium(II) sulfide are introduced and interpreted. Different from the photocatalytic decomposition of pollutants under aerobic conditions, selective conversion of organic compounds can be driven by the photocatalytic reactions under deaerated conditions.
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S Ikeda, H Nur, P Wu, T Tatsumi, B Ohtani
SCIENCE AND TECHNOLOGY IN CATALYSIS 2002 145 251 - 254 2003
Publisher：KODANSHA LTD
Epoxidation of 1-octene with hydrogen peroxide at room temperature was examined using bimodal zeolite particles, in which some of the external surfaces some were covered with hydrophobic alkyl groups and the rest were left hydrophilic. When bimodal titanium-loaded NaY were added to a mixture of aqueous hydrogen peroxide and 1-octene, these particles could be assembled just at the liquid-liquid phase boundary, resulting in the formation of a particulate film, and efficiently catalyzed the epoxidation of 1-octene even without agitation. On the other hand, when TS-1 particles in which the active titanium species located mainly inside the pore system were used, there were no significant effects of partial modification on catalytic activity under the conditions of both stirring and no stirring. These results suggested that titanium species located on the external surfaces of particles were dominantly effective for the observed phase boundary catalytic system.
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界面触媒反応系の設計と開発
池田 茂
触媒 44 ( 8 ) 586 - 588 2002.12
Authorship：Lead author Publishing type：Article, review, commentary, editorial, etc. (international conference proceedings) Publisher：触媒学会
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部分疎水化ゼオライト粉末による液液界面触媒反応
池田 茂
ケミカルエンジニヤリング 47 ( 5 ) 335 - 338 2002.5
Authorship：Lead author Publishing type：Article, review, commentary, editorial, etc. (trade magazine, newspaper, online media) Publisher：化学工業社
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芳香族有機化合物を表面に固定した酸化チタン微粒子の調製と光化学特性の評価
池田 茂, 鳥本 司, 大谷文章
会報光触媒 7 48 - 51 2002.4
Authorship：Lead author Publishing type：Article, review, commentary, editorial, etc. (international conference proceedings) Publisher：光機能材料研究会
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酸化チタン光触媒の励起電子−正孔の再結合速度の評価と制御−高効率光触媒反応系の設計をめざして−
池田 茂, 大谷文章
光化学 32 ( 3 ) 122 - 128 2001.12
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酸化チタン光触媒の励起電子－正孔の再結合速度の評価と制御－高効率光触媒反応系の設計をめざして－
池田 茂, 大谷文章
光化学 32 ( 3 ) 122 - 128 2001.12
Authorship：Lead author Publishing type：Article, review, commentary, editorial, etc. (international conference proceedings) Publisher：光化学協会
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Mechano-catalytic overall water splitting on some oxides (II)
T Takata, S Ikeda, A Tanaka, M Hara, JN Kondo, K Domen
APPLIED CATALYSIS A-GENERAL 200 ( 1-2 ) 255 - 262 2000.8
Publisher：ELSEVIER SCIENCE BV
A novel catalytic decomposition of H2O to stoichiometric Hz and O-2 using mechanical energy was studied. The mechano-catalytic decomposition of H2O proceeded on some oxide powders when they were suspended in distilled water by magnetic stirring. Mechanical energy to decompose H2O was supplied by rubbing of oxide powders between the bottom of Pyrex glass reaction vessel and the stirring rod. H2O decomposition was revealed to take place essentially by the friction of oxide powder with the bottom surface of the reaction vessel. (C) 2000 Elsevier Science B.V. All rights reserved.
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IKEDA SHIGERU
53 ( 2 ) 173 - 176 2000.2
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水を完全分解する新しい触媒反応-メカノキャタリシス：力学-化学エネルギー変換-
池田 茂
化学と工業 53 ( 2 ) 173 - 176 2000.2
Authorship：Lead author Publishing type：Article, review, commentary, editorial, etc. (international conference proceedings) Publisher：日本化学会
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錯体重合法による光触媒の調製
池田 茂, 堂免一成
工業材料 47 ( 4 ) 112 - 115 1999.4
Authorship：Lead author Publishing type：Article, review, commentary, editorial, etc. (trade magazine, newspaper, online media) Publisher：日刊工業新聞社
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S Ikeda, A Tanaka, H Hosono, H Kawazoe, M Hara, JN Kondo, K Domen
SCIENCE AND TECHNOLOGY IN CATALYSIS 1998 121 301 - 304 1999
Publisher：ELSEVIER SCIENCE PUBL B V
Overall water splitting on Cu(I)-containing ternary oxide, CuMO2 (M=Fe, Ga, Al) has been investigated. Simultaneous H-2 and O-2 evolution was accomplished by rubbing these oxide powders in distilled water, which is named as 'mechano-catalytic' overall water splitting.
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Overall water splitting on Cu(I)-containing ternary oxides, CuMO2(M=Fe, Ga, Al) with delafossite structure
S Ikeda, A Tanaka, H Hosono, H Kawazoe, M Hara, JN Kondo, K Domen
SCIENCE AND TECHNOLOGY IN CATALYSIS 1998 121 301 - 304 1999
Publisher：ELSEVIER SCIENCE PUBL B V
Overall water splitting on Cu(I)-containing ternary oxide, CuMO2 (M=Fe, Ga, Al) has been investigated. Simultaneous H-2 and O-2 evolution was accomplished by rubbing these oxide powders in distilled water, which is named as 'mechano-catalytic' overall water splitting.
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Overall water splitting on Cu(I)-containing ternary oxides, CuMO2(M=Fe, Ga, Al) with delafossite structure
S Ikeda, A Tanaka, H Hosono, H Kawazoe, M Hara, JN Kondo, K Domen
SCIENCE AND TECHNOLOGY IN CATALYSIS 1998 121 301 - 304 1999
Publisher：ELSEVIER SCIENCE PUBL B V
Overall water splitting on Cu(I)-containing ternary oxide, CuMO2 (M=Fe, Ga, Al) has been investigated. Simultaneous H-2 and O-2 evolution was accomplished by rubbing these oxide powders in distilled water, which is named as 'mechano-catalytic' overall water splitting.
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Cu2O as a photocatalyst for overall water splitting under visible light irradiation
M Hara, T Kondo, M Komoda, S Ikeda, K Shinohara, A Tanaka, JN Kondo, K Domen
CHEMICAL COMMUNICATIONS pp.357-358 ( 3 ) 357 - 358 1998.2
Publisher：ROYAL SOC CHEMISTRY
Photocatalytic decomposition of water into H-2 and O-2 on Cu2O under visible light irradiation is investigated; the photocatalytic water splitting on Cu2O powder proceeds without any noticeable decrease in the activity for more than 1900 h.
DOI： 10.1039/a707440i