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Jeong YJ, Tan R, Nam S, Lee JH, Kim SK, Lee TG, Shin SS, Zheng X, Cho IS. Rapid Surface Reconstruction of In 2S 3 Photoanode via Flame Treatment for Enhanced Photoelectrochemical Performance. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024:e2403164. [PMID: 38720548 DOI: 10.1002/adma.202403164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Revised: 05/02/2024] [Indexed: 05/31/2024]
Abstract
Surface reconstruction, reorganizing the surface atoms or structure, is a promising strategy to manipulate materials' electrical, electrochemical, and surface catalytic properties. Herein, a rapid surface reconstruction of indium sulfide (In2S3) is demonstrated via a high-temperature flame treatment to improve its charge collection properties. The flame process selectively transforms the In2S3 surface into a diffusionless In2O3 layer with high crystallinity. Additionally, it controllably generates bulk sulfur vacancies within a few seconds, leading to surface-reconstructed In2S3 (sr-In2S3). When using those sr-In2S3 as photoanode for photoelectrochemical water splitting devices, these dual functions of surface In2O3/bulk In2S3 reduce the charge recombination in the surface and bulk region, thus improving photocurrent density and stability. With optimized surface reconstruction, the sr-In2S3 photoanode demonstrates a significant photocurrent density of 8.5 mA cm-2 at 1.23 V versus a reversible hydrogen electrode (RHE), marking a 2.5-fold increase compared to pristine In2S3 (3.5 mA cm-2). More importantly, the sr-In2S3 photoanode exhibits an impressive photocurrent density of 7.3 mA cm-2 at 0.6 V versus RHE for iodide oxidation reaction. A practical and scalable surface reconstruction is also showcased via flame treatment. This work provides new insights for surface reconstruction engineering in sulfide-based semiconductors, making a breakthrough in developing efficient solar-fuel energy devices.
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Affiliation(s)
- Yoo Jae Jeong
- Department of Energy Systems Research, Ajou University, Suwon, 16499, Republic of Korea
- Department of Material Science & Engineering, Ajou University, Suwon, 16499, Republic of Korea
| | - Runfa Tan
- Department of Energy Systems Research, Ajou University, Suwon, 16499, Republic of Korea
- Department of Material Science & Engineering, Ajou University, Suwon, 16499, Republic of Korea
| | - Seongsik Nam
- Department of Nano Engineering, Department of Nano Science and Technology, SKKU Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University, Suwon, 16419, Republic of Korea
- SKKU Institute of Energy Science and Technology (SIEST), Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - Jong Ho Lee
- Department of Energy Systems Research, Ajou University, Suwon, 16499, Republic of Korea
- Department of Material Science & Engineering, Ajou University, Suwon, 16499, Republic of Korea
| | - Sung Kyu Kim
- Department of Nanotechnology and Advanced Materials Engineering, Sejong University, Seoul, 05006, Republic of Korea
| | - Tae Gyu Lee
- Department of Material Science & Engineering, Ajou University, Suwon, 16499, Republic of Korea
| | - Seong Sik Shin
- Department of Nano Engineering, Department of Nano Science and Technology, SKKU Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University, Suwon, 16419, Republic of Korea
- SKKU Institute of Energy Science and Technology (SIEST), Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - Xiaolin Zheng
- Department of Mechanical Engineering, Stanford University, Stanford, CA, 94305, USA
| | - In Sun Cho
- Department of Energy Systems Research, Ajou University, Suwon, 16499, Republic of Korea
- Department of Material Science & Engineering, Ajou University, Suwon, 16499, Republic of Korea
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Jin L, Wu Y, Zhang H, Wang Y. In‐situ Synthesis of the Thinnest In
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Sandwich‐Like Heterojunction for Photoelectrocatalytic Water Splitting. Chemistry 2022; 28:e202104428. [DOI: 10.1002/chem.202104428] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Indexed: 11/09/2022]
Affiliation(s)
- Lin Jin
- College of Chemistry and Chemical Engineering State Key Laboratory of Power Transmission Equipment & System Security and New Technology Chongqing University 174 Shazheng Street, Shapingba District Chongqing City 400044 P. R. China
| | - Yu Wu
- College of Chemistry and Chemical Engineering State Key Laboratory of Power Transmission Equipment & System Security and New Technology Chongqing University 174 Shazheng Street, Shapingba District Chongqing City 400044 P. R. China
| | - Huijuan Zhang
- College of Chemistry and Chemical Engineering State Key Laboratory of Power Transmission Equipment & System Security and New Technology Chongqing University 174 Shazheng Street, Shapingba District Chongqing City 400044 P. R. China
| | - Yu Wang
- College of Chemistry and Chemical Engineering State Key Laboratory of Power Transmission Equipment & System Security and New Technology Chongqing University 174 Shazheng Street, Shapingba District Chongqing City 400044 P. R. China
- College of Electrical Engineering Chongqing University 174 Shazheng Street, Shapingba District Chongqing City 400044 P. R. China
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Wang YF, Sun J, Han YC, Feng L, Li GQ, Gao H, Gu XL, Hu SY, Deng YH, Wan CQ. Thiol‐functional MOF Bonded with Cubic CdS: A New Synthesis of Heterostructure with High Activity for Splitting Water Into H2 Under Visible Light Irradiation. CHEMPHOTOCHEM 2022. [DOI: 10.1002/cptc.202200017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Yi-Fan Wang
- Capital Normal University Department of Chemistry CHINA
| | - Jie Sun
- Shaanxi Normal University School of Materials Science and Engineering CHINA
| | - Yu-Chen Han
- Capital Normal University Department of Chemistry CHINA
| | - Li Feng
- Capital Normal University Department of Chemistry CHINA
| | - Guo-Qiang Li
- Capital Normal University Department of Chemistry CHINA
| | - Hui Gao
- Capital Normal University Department of Chemistry CHINA
| | - Xiao-Ling Gu
- Capital Normal University Department of Chemistry CHINA
| | - Si-Yuan Hu
- Capital Normal University Department of Chemistry CHINA
| | - Yu-Heng Deng
- Capital Normal University Department of Chemistry CHINA
| | - Chong-Qing Wan
- Capital Normal University Department of Chemistry No.105,Xisan Ring Road 100048 Beijing CHINA
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Wang Y, Tang G, Wu Y, Zhao J, Zhang H, Zhou M. Cu2O/CeO2 Photoelectrochemical Water Splitting: A Nanocomposite with an Efficient Interfacial Transmission Path under the Co-action of p-n Heterojunction and Micro-mesocrystals. Chemistry 2021; 28:e202103459. [PMID: 34931387 DOI: 10.1002/chem.202103459] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Indexed: 11/11/2022]
Abstract
Cu 2 O is an ideal p-type material for photoelectrochemical (PEC) hydrogen evolution, while serious electron-hole recombination and photocorrosion restrict its further improvement of the PEC activity. In this work, CeO 2 nanoparticles (NPs) self-assemble on the Cu 2 O octahedra surface, successfully constructing Cu 2 O/CeO 2 structure in which p-n heterojunction and micro-mesocrystals (m-MCs) structure work together. The optimum Cu 2 O/CeO 2 composite without the use of any cocatalyst exhibits 5 times higher photocurrent density (4.63 mA cm -2 at 0 V versus the reversible hydrogen electrode) than that of Cu 2 O octahedra, which is better than most Cu 2 O-based photocathodes without cocatalyst and even comparable with the advanced Cu 2 O-based photocathodes. The hydrogen production of the optimal Cu 2 O/CeO 2 (Faradaic efficiency of ~100%) is 17.5 times higher than that of pure Cu 2 O octahedra and the photocurrent shows almost no decay under the 12 h stability test. The delicately designed Cu 2 O/CeO 2 structure in this work provides reference and inspiration for the design of cathodes materials.
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Affiliation(s)
- Yu Wang
- Chongqing University, college of chemistry and chemical engineering, 174 shazheng St., chongqing, CHINA
| | - Gangrong Tang
- Chongqing University, college of chemistry and chemical engineering, CHINA
| | - Yu Wu
- Chongqing University, college of chemistry and chemical engineering, CHINA
| | - Jinghong Zhao
- Chongqing University, College of Communication Engineering, CHINA
| | - Huijuan Zhang
- Chongqing University, college of chemistry and chemical engineering, CHINA
| | - Miao Zhou
- Chongqing University, College of Communication Engineering, CHINA
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