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Ding Y, Jiang C, Sun Y, Zhang X, Ma X. Effect of carboxyl group on photoelectrochemical performance of TiO 2nanowire arrays for water splitting. NANOTECHNOLOGY 2024; 35:465702. [PMID: 39146956 DOI: 10.1088/1361-6528/ad6fa4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2024] [Accepted: 08/15/2024] [Indexed: 08/17/2024]
Abstract
TiO2is one of the most studied semiconductor materials for the photoelectrochemical water splitting to hydrogen production, but it only responds to ultraviolet light. The introduction of organic compound is one of the common means to expand the visible light response of TiO2. In this work, rutile TiO2nanowire arrays (NWs) were grown on conductive glass by a modified solvothermal method using oleic acid as the key additive. The obtained TiO2NWs are characterized using x-ray diffraction, x-ray photoelectron spectroscopy, infrared spectroscopy and electrochemical characterization. The results show that the carboxyl groups arising from oleic acid are chemically bonded with the TiO2NWs in the form of chelating bidentate, which increases the visible light absorption range and active sites of TiO2, and reduces the transfer resistance between the photoelectrode and the electrolyte. The photocurrent density is doubled to 0.17 mA cm-2at 1.23 V vs. RHE. This work provides a novel idea for the design of metal oxide semiconductor photoanodes by adsorbing organic compounds.
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Affiliation(s)
- Yibo Ding
- Department of Chemistry, College of Sciences, Shanghai University, Shanghai 200444, People's Republic of China
- School of Materials Science and Engineering, Shanghai University of Engineering Science, Shanghai 201620, People's Republic of China
| | - Chenfeng Jiang
- Department of Chemistry, College of Sciences, Shanghai University, Shanghai 200444, People's Republic of China
| | - Yi Sun
- Aerospace Hydrogen Energy (Shanghai) Technology Co., Ltd, Shanghai 200241, People's Republic of China
| | - Xiaoyan Zhang
- Department of Chemistry, College of Sciences, Shanghai University, Shanghai 200444, People's Republic of China
| | - Xiaoqing Ma
- School of Materials Science and Engineering, Shanghai University of Engineering Science, Shanghai 201620, People's Republic of China
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2
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Ge J, Wu L, Gao L, Niu H, Liu M, Zou Y, Wang J, Jin J. Green light all the way: Triple modification synergistic modification effect to enhance the photoelectrochemical water oxidation performance of BiVO 4 photoanode. J Colloid Interface Sci 2024; 677:90-98. [PMID: 39083895 DOI: 10.1016/j.jcis.2024.07.203] [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: 05/20/2024] [Revised: 07/20/2024] [Accepted: 07/25/2024] [Indexed: 08/02/2024]
Abstract
The recombination of photogenerated electron-hole pairs of the photoanode seriously impairs the application of bismuth vanadate (BiVO4) in photoelectrochemical water splitting. To address this issue, we prepared a Yb:BiVO4/Co3O4/FeOOH composite photoanode by employing drop-casting and soaking methods to attach Co3O4/FeOOH cocatalysts to the surface of ytterbium-doped BiVO4. The prepared Yb:BiVO4/Co3O4/FeOOH photoanode demonstrates a high photocurrent density of 4.89 mA cm-2 at 1.23 V versus the reversible hydrogen electrode (RHE), which is 5.1 times that of bare BiVO4 (0.95 mA cm-2). Detailed characterization and testing demonstrated that Yb doping narrows the band gap and significantly enhances the carrier density. Furthermore, Co3O4 serves as a hole transfer layer to expedite hole migration and diminish recombination, while FeOOH offers additional active sites and minimizes surface trap states, thus boosting stability. The synergistic effects of Yb doping and Co3O4/FeOOH cocatalyst significantly improved the reaction kinetics and overall performance of PEC water oxidation. This work provides a strategy for designing efficient photoanodes for PEC water oxidation.
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Affiliation(s)
- Jiabao Ge
- College of Chemical Engineering, Northwest Minzu University, Lanzhou, Gansu 730030, PR China
| | - Lan Wu
- College of Chemical Engineering, Northwest Minzu University, Lanzhou, Gansu 730030, PR China.
| | - Lili Gao
- State Key Laboratory of Applied Organic Chemistry (SKLAOC), The Key Laboratory of Catalytic Engineering of Gansu Province, Key Laboratory of Advanced Catalysis of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, Gansu 730000, PR China
| | - Huilin Niu
- State Key Laboratory of Applied Organic Chemistry (SKLAOC), The Key Laboratory of Catalytic Engineering of Gansu Province, Key Laboratory of Advanced Catalysis of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, Gansu 730000, PR China
| | - Mingming Liu
- State Key Laboratory of Applied Organic Chemistry (SKLAOC), The Key Laboratory of Catalytic Engineering of Gansu Province, Key Laboratory of Advanced Catalysis of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, Gansu 730000, PR China
| | - Yuqi Zou
- State Key Laboratory of Applied Organic Chemistry (SKLAOC), The Key Laboratory of Catalytic Engineering of Gansu Province, Key Laboratory of Advanced Catalysis of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, Gansu 730000, PR China
| | - Jiaoli Wang
- State Key Laboratory of Applied Organic Chemistry (SKLAOC), The Key Laboratory of Catalytic Engineering of Gansu Province, Key Laboratory of Advanced Catalysis of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, Gansu 730000, PR China
| | - Jun Jin
- State Key Laboratory of Applied Organic Chemistry (SKLAOC), The Key Laboratory of Catalytic Engineering of Gansu Province, Key Laboratory of Advanced Catalysis of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, Gansu 730000, PR China.
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Wu S, Lee JK, Tan JWE, Chan JX, Xu R, Zhang Z. In Situ Quantitative Study of Single-Molecule Photoreduction Activities and Kinetics on 1D-1D Heterostructure. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023:e2307057. [PMID: 37972278 DOI: 10.1002/smll.202307057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Revised: 10/30/2023] [Indexed: 11/19/2023]
Abstract
Understanding the underlying catalytic mechanisms with nanometer resolution is of critical importance to the rational design of 1D heterogeneous catalysts. However, a fundamental investigation of photocatalytic activities and kinetics at their individual sites is still challenging. Herein, in situ single-molecule fluorescence microscopy is employed to study the site-specific catalytic activities and dynamics on 1D-1D heterostructure for the first time. For carbon nanotube (CNT)/CdS nanorod composites, it is found that the CdS end with heterojunction exhibits the highest catalytic conversion rate constant of resazurin photoreduction, which is 30%, 7%, and 19% higher than those of the middle segment and the bare end of CdS, and the CNT end with heterojunction, respectively. A similar trend of adsorption abilities is observed in these structures. Such phenomena can be attributed to the different content of defects in these structures. Regarding the dissociation behaviors, the dissociation rate constants of all structures exhibit an opposite trend to those of adsorption and conversion. The direct and indirect dissociation are found to be predominant on CdS and CNT, respectively. Such investigation provides a deep insight into the understanding of site-specific properties on 1D heterogeneous catalysts and helps construct the "structure-dynamics" correlations at the nanoscale.
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Affiliation(s)
- Shuyang Wu
- School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371, Singapore
| | - Jinn-Kye Lee
- School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371, Singapore
| | - Joseph Wei En Tan
- School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371, Singapore
| | - Jia Xin Chan
- School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371, Singapore
| | - Rong Xu
- School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371, Singapore
| | - Zhengyang Zhang
- School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371, Singapore
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4
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Zhang P, Tian Z, Kang Y, He B, Zhao Z, Hung CT, Duan L, Chen W, Tang Y, Yu J, Mai L, Li YF, Li W, Zhao D. Sub-10 nm Corrugated TiO 2 Nanowire Arrays by Monomicelle-Directed Assembly for Efficient Hole Extraction. J Am Chem Soc 2022; 144:20964-20974. [DOI: 10.1021/jacs.2c10395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Pengfei Zhang
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, International School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, P. R. China
- Department of Chemistry and Laboratory of Advanced Materials, State Key Laboratory of Molecular Engineering of Polymers, iChEM, College of Chemistry and Materials, Fudan University, Shanghai 200433, P. R. China
| | - Zhangliu Tian
- Department of Chemistry, National University of Singapore, Singapore 117543, Singapore
| | - Yikun Kang
- Department of Chemistry and Laboratory of Advanced Materials, State Key Laboratory of Molecular Engineering of Polymers, iChEM, College of Chemistry and Materials, Fudan University, Shanghai 200433, P. R. China
| | - Bowen He
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, International School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, P. R. China
| | - Zaiwang Zhao
- Department of Chemistry and Laboratory of Advanced Materials, State Key Laboratory of Molecular Engineering of Polymers, iChEM, College of Chemistry and Materials, Fudan University, Shanghai 200433, P. R. China
| | - Chin-Te Hung
- Department of Chemistry and Laboratory of Advanced Materials, State Key Laboratory of Molecular Engineering of Polymers, iChEM, College of Chemistry and Materials, Fudan University, Shanghai 200433, P. R. China
| | - Linlin Duan
- Department of Chemistry and Laboratory of Advanced Materials, State Key Laboratory of Molecular Engineering of Polymers, iChEM, College of Chemistry and Materials, Fudan University, Shanghai 200433, P. R. China
| | - Wei Chen
- Department of Chemistry, National University of Singapore, Singapore 117543, Singapore
| | - Yun Tang
- Department of Chemistry and Laboratory of Advanced Materials, State Key Laboratory of Molecular Engineering of Polymers, iChEM, College of Chemistry and Materials, Fudan University, Shanghai 200433, P. R. China
| | - Jiaguo Yu
- Laboratory of Solar Fuel, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, P. R. China
| | - Liqiang Mai
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, International School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, P. R. China
| | - Ye-Fei Li
- Department of Chemistry and Laboratory of Advanced Materials, State Key Laboratory of Molecular Engineering of Polymers, iChEM, College of Chemistry and Materials, Fudan University, Shanghai 200433, P. R. China
| | - Wei Li
- Department of Chemistry and Laboratory of Advanced Materials, State Key Laboratory of Molecular Engineering of Polymers, iChEM, College of Chemistry and Materials, Fudan University, Shanghai 200433, P. R. China
| | - Dongyuan Zhao
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, International School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, P. R. China
- Department of Chemistry and Laboratory of Advanced Materials, State Key Laboratory of Molecular Engineering of Polymers, iChEM, College of Chemistry and Materials, Fudan University, Shanghai 200433, P. R. China
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5
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Zhang X, Zhang S, Cui X, Zhou W, Cao W, Cheng D, Sun Y. Recent Advances in TiO2-based Photoanodes for Photoelectrochemical Water Splitting. Chem Asian J 2022; 17:e202200668. [PMID: 35925726 DOI: 10.1002/asia.202200668] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2022] [Revised: 07/31/2022] [Indexed: 11/12/2022]
Abstract
Photoelectrochemical (PEC) water splitting has attracted a great attention in the past several decades which holds great promise to address global energy and environmental issues by converting solar energy into hydrogen. However, its low solar-to-hydrogen (STH) conversion efficiency remains a bottleneck for practical application. Developing efficient photoelectrocatalysts with high stability and high STH conversion efficiency is one of the key challenges. As a typical n-type semiconductor, titanium dioxide (TiO 2 ) exhibits high PEC water splitting performance, especially high chemical and photo stability. But, TiO 2 has also disadvantages such as wide band gap and fast electron-hole recombination rate, which seriously hinder its PEC performance. This review focuses on recent development in TiO 2 -based photoanodes as well as some key fundamentals. The corresponding mechanisms and key factors for high STH, and controllable synthesis and modification strategies are highlighted in this review. We conclude finally with an outlook providing a critical perspective on future trends on TiO 2 -based photoanodes for PEC water splitting.
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Affiliation(s)
- Xiaoyan Zhang
- Shanghai University, Department of chemistry, No. 99, Road Shangda, 200444, Shanghai, CHINA
| | | | - Xiaoli Cui
- Fudan University, Department of Materials Science, CHINA
| | - Wei Zhou
- Shanghai University, Department of Chemistry, CHINA
| | - Weimin Cao
- Shanghai University, Department of Chemistry, CHINA
| | | | - Yi Sun
- Shanghai Aerospace Hydrogen Energy Technology Co. Ltd, Department of R & D, CHINA
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6
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Wang R, Liu H, Zhang Y, Sun K, Bao W. Integrated Photovoltaic Charging and Energy Storage Systems: Mechanism, Optimization, and Future. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2203014. [PMID: 35780491 DOI: 10.1002/smll.202203014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2022] [Revised: 06/17/2022] [Indexed: 06/15/2023]
Abstract
As an emerging solar energy utilization technology, solar redox batteries (SPRBs) combine the superior advantages of photoelectrochemical (PEC) devices and redox batteries and are considered as alternative candidates for large-scale solar energy capture, conversion, and storage. In this review, a systematic summary from three aspects, including: dye sensitizers, PEC properties, and photoelectronic integrated systems, based on the characteristics of rechargeable batteries and the advantages of photovoltaic technology, is presented. The matching problem of high-performance dye sensitizers, strategies to improve the performance of photoelectrode PEC, and the working mechanism and structure design of multienergy photoelectronic integrated devices are mainly introduced and analyzed. In particular, the devices and improvement strategies of high-performance electrode materials are analyzed from the perspective of different photoelectronic integrated devices (liquid-based and solid-state-based). Finally, future perspectives are provided for further improving the performance of SPRBs. This work will open up new prospects for the development of high-efficiency photoelectronic integrated batteries.
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Affiliation(s)
- Ronghao Wang
- School of Chemistry and Materials Science, Nanjing University of Information Science & Technology, Nanjing, 210044, P. R. China
| | - Hongmin Liu
- School of Chemistry and Materials Science, Nanjing University of Information Science & Technology, Nanjing, 210044, P. R. China
| | - Yuhao Zhang
- School of Chemistry and Materials Science, Nanjing University of Information Science & Technology, Nanjing, 210044, P. R. China
| | - Kaiwen Sun
- Australian Centre for Advanced Photovoltaics, School of Photovoltaic and Renewable Energy Engineering, University of New South Wales, Sydney, 2052, Australia
| | - Weizhai Bao
- School of Chemistry and Materials Science, Nanjing University of Information Science & Technology, Nanjing, 210044, P. R. China
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7
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Schäufele RS, Vazquez-Pufleau M, Pendashteh A, Vilatela JJ. Controlling reaction paths for ultra-fast growth of inorganic nanowires floating in the gas phase. NANOSCALE 2021; 14:55-64. [PMID: 34889919 DOI: 10.1039/d1nr07261g] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Synthesis of inorganic nanowires/nanotubes suspended in the gas through floating catalyst chemical vapour deposition (FCCVD) produces exceptional growth rates of 5-1000 micron per second, several orders of magnitude faster than conventional substrate processes. It leads to nanowire lengths >100 microns and thus to the possibility of direct assembly into freestanding macroscopic networks as a continuous process. This work studies the different reaction paths controlling conversion and selectivity in FCCVD applied to the synthesis of silicon nanowires (SiNWs) from silane, grown through an aerosol of gold catalyst nanoparticles. There are two main competing reactions: catalysed growth of SiNWs and non-catalysed formation of amorphous Si nanoparticles. The mass fraction of the two populations can be precisely determined by XRD and Raman spectroscopy, enabling high-throughput screening of reaction parameter space. The experimental data and accompanying analytical model show that selectivity is kinetically controlled by the ratio of precursor/hydrogen carrier gas, through its inhibition of the pyrolisis of silane into silylene. In contrast, the rate of SiNW growth is largely unaffected by hydrogen and not limited by precursor availability. These results provide a framework to describe the kinetics of nanomaterials growth by FCCVD.
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Affiliation(s)
- Richard S Schäufele
- Department of Applied Physics, Universidad Autónoma de Madrid, Cantoblanco 28049, Madrid, Spain
- IMDEA Materials, Madrid, 28049, Spain.
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8
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Tian L, Xin Q, Zhao C, Xie G, Akram MZ, Wang W, Ma R, Jia X, Guo B, Gong JR. Nanoarray Structures for Artificial Photosynthesis. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e2006530. [PMID: 33896110 DOI: 10.1002/smll.202006530] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Revised: 01/25/2021] [Indexed: 05/14/2023]
Abstract
Conversion and storage of solar energy into fuels and chemicals by artificial photosynthesis has been considered as one of the promising methods to address the global energy crisis. However, it is still far from the practical applications on a large scale. Nanoarray structures that combine the advantages of nanosize and array alignment have demonstrated great potential to improve solar energy conversion efficiency, stability, and selectivity. This article provides a comprehensive review on the utilization of nanoarray structures in artificial photosynthesis of renewable fuels and high value-added chemicals. First, basic principles of solar energy conversion and superiorities of using nanoarray structures in this field are described. Recent research progress on nanoarray structures in both abiotic and abiotic-biotic hybrid systems is then outlined, highlighting contributions to light absorption, charge transport and transfer, and catalytic reactions (including kinetics and selectivity). Finally, conclusions and outlooks on future research directions of nanoarray structures for artificial photosynthesis are presented.
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Affiliation(s)
- Liangqiu Tian
- Chinese Academy of Sciences (CAS) Center for Excellence in Nanoscience, CAS Key Laboratory for Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology, Beijing, 100190, P. R. China
- School of Chemical Sciences, University of CAS, Beijing, 100049, P. R. China
| | - Qi Xin
- Chinese Academy of Sciences (CAS) Center for Excellence in Nanoscience, CAS Key Laboratory for Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology, Beijing, 100190, P. R. China
| | - Chang Zhao
- Chinese Academy of Sciences (CAS) Center for Excellence in Nanoscience, CAS Key Laboratory for Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology, Beijing, 100190, P. R. China
- School of Chemical Sciences, University of CAS, Beijing, 100049, P. R. China
| | - Guancai Xie
- Chinese Academy of Sciences (CAS) Center for Excellence in Nanoscience, CAS Key Laboratory for Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology, Beijing, 100190, P. R. China
- School of Chemical Sciences, University of CAS, Beijing, 100049, P. R. China
| | - Muhammad Zain Akram
- Chinese Academy of Sciences (CAS) Center for Excellence in Nanoscience, CAS Key Laboratory for Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology, Beijing, 100190, P. R. China
- School of Chemical Sciences, University of CAS, Beijing, 100049, P. R. China
| | - Wenrong Wang
- Chinese Academy of Sciences (CAS) Center for Excellence in Nanoscience, CAS Key Laboratory for Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology, Beijing, 100190, P. R. China
| | - Renping Ma
- Chinese Academy of Sciences (CAS) Center for Excellence in Nanoscience, CAS Key Laboratory for Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology, Beijing, 100190, P. R. China
| | - Xinrui Jia
- Chinese Academy of Sciences (CAS) Center for Excellence in Nanoscience, CAS Key Laboratory for Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology, Beijing, 100190, P. R. China
- School of Chemical Sciences, University of CAS, Beijing, 100049, P. R. China
| | - Beidou Guo
- Chinese Academy of Sciences (CAS) Center for Excellence in Nanoscience, CAS Key Laboratory for Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology, Beijing, 100190, P. R. China
- School of Chemical Sciences, University of CAS, Beijing, 100049, P. R. China
| | - Jian Ru Gong
- Chinese Academy of Sciences (CAS) Center for Excellence in Nanoscience, CAS Key Laboratory for Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology, Beijing, 100190, P. R. China
- School of Chemical Sciences, University of CAS, Beijing, 100049, P. R. China
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9
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Du L, Chen Y, Wang Q, Zhao Y, Li L, Liu X, Tian G. Hierarchical Co 0.85 Se-CdSe/MoSe 2 /CdSe Sandwich-Like Heterostructured Cages for Efficient Photocatalytic CO 2 Reduction. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e2100412. [PMID: 34159750 DOI: 10.1002/smll.202100412] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Revised: 04/12/2021] [Indexed: 06/13/2023]
Abstract
Fabricating efficient photocatalysts with rapid charge carrier separation and high visible light harvesting is an advisable strategy to improve CO2 reduction performance. Herein, hierarchical Co0.85 Se-CdSe/MoSe2 /CdSe cages with sandwich-like heterostructure are prepared to act as efficient photocatalysts for CO2 reduction. In this study, the structure and composition of the final products can be regulated through the cation-exchange reaction in the presence of ascorbic acid. In the Co0.85 Se-CdSe/MoSe2 /CdSe cages, MoSe2 nanosheets function as a bridge to integrate Co0.85 Se-CdSe and CdSe on both sides of the MoSe2 nanosheet shell into a sandwich-like heterostructured catalyst system, which possesses multiple positive merits for photocatalysis, including accelerated transport and separation of photogenerated carriers, improved visible light utilization, and increased catalytic active sites. Thus, the optimized Co0.85 Se-CdSe/MoSe2 /CdSe cages exhibit remarkable visible-light photocatalytic performance and outstanding stability for CO2 reduction with a high CO average yield of 15.04 µmol g-1 h-1 and 90.14% selectivity, which are much higher than those of other control samples including single-component catalysts and binary hybrid catalysts. This study provides a promising way for the design and fabrication of high-efficiency photocatalysts.
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Affiliation(s)
- Lizhi Du
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education of the People's Republic of China, Heilongjiang University, Harbin, 150080, P. R. China
| | - Yajie Chen
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education of the People's Republic of China, Heilongjiang University, Harbin, 150080, P. R. China
| | - Qi Wang
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education of the People's Republic of China, Heilongjiang University, Harbin, 150080, P. R. China
| | - Yumeng Zhao
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education of the People's Republic of China, Heilongjiang University, Harbin, 150080, P. R. China
| | - Longge Li
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education of the People's Republic of China, Heilongjiang University, Harbin, 150080, P. R. China
| | - Xiu Liu
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education of the People's Republic of China, Heilongjiang University, Harbin, 150080, P. R. China
| | - Guohui Tian
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education of the People's Republic of China, Heilongjiang University, Harbin, 150080, P. R. China
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10
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Long X, Wang T, Jin J, Zhao X, Ma J. The enhanced water splitting activity of a ZnO-based photoanode by modification with self-doped lanthanum ferrite. NANOSCALE 2021; 13:11215-11222. [PMID: 34151924 DOI: 10.1039/d1nr02673a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
The difficult separation and transfer of photoexcited charge carriers in composite photoelectrodes is a decisive factor limiting the efficiencies of semiconductor-based photoelectrochemical water splitting systems. Herein, to further enhance the photoelectrochemical properties of ZnO-based photoanodes, we constructed composite ZnO nanoarray photoanodes with Fe-self-doped lanthanum ferrite (denoted as La1-xFe1+xO3/ZnO NRs), which had the effect of killing two birds with one stone. This improvement strategy differs from the previously popular multi-step modification process, and integrates the dual benefits of a heterojunction and cocatalyst using the same material, the doped LaFeO3, which bypasses the shortcomings of multi-step charge transfer. Gratifyingly, benefitting from the suitable energy bands and excellent electrocatalytic oxygen evolution activity of La0.9Fe1.1O3, the photoanode exhibits outstanding bulk charge separation and surface charge utilization efficiencies, as well as achieving a photocurrent density that is over three times higher than that of pristine ZnO NRs, with a small onset potential (0.33 V vs. RHE). This electrode modification concept provides guidance for the development of other highly active photoelectrodes.
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Affiliation(s)
- Xuefeng Long
- Key Laboratory of Low Carbon Energy and Chemical Engineering of Gansu Province. School of Petrochemical Technology, Lanzhou University of Technology, Langongping Road 287, Lanzhou 730050, P. R. China
| | - Tong Wang
- State Key Laboratory of Applied Organic Chemistry (SKLAOC), The Key Laboratory of Catalytic Engineering of Gansu Province. College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, Gansu 730000, P. R. China.
| | - Jun Jin
- State Key Laboratory of Applied Organic Chemistry (SKLAOC), The Key Laboratory of Catalytic Engineering of Gansu Province. College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, Gansu 730000, P. R. China.
| | - Xinhong Zhao
- Key Laboratory of Low Carbon Energy and Chemical Engineering of Gansu Province. School of Petrochemical Technology, Lanzhou University of Technology, Langongping Road 287, Lanzhou 730050, P. R. China
| | - Jiantai Ma
- State Key Laboratory of Applied Organic Chemistry (SKLAOC), The Key Laboratory of Catalytic Engineering of Gansu Province. College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, Gansu 730000, P. R. China.
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11
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Esmaili H, Kowsari E, Ramakrishna S. Significance of nanostructure morphologies in photoelectrochemical water splitting cells: A brief review. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2020.129856] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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12
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Lin Z, Li S, Huang J. Natural Cellulose Substance Based Energy Materials. Chem Asian J 2021; 16:378-396. [PMID: 33427380 DOI: 10.1002/asia.202001358] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2020] [Revised: 12/31/2020] [Indexed: 11/08/2022]
Abstract
Natural cellulose substances have been proven to be ideal structural templates and scaffolds for the fabrication of artificial functional materials with designed structures, psychochemical properties and functionalities. They possess unique hierarchically porous network structures with flexible, biocompatible, and environmental characteristics, exhibiting great potentials in the preparation of energy-related materials. This minireview summarizes natural cellulose-based materials that are used in batteries, supercapacitors, photocatalytic hydrogen generation, photoelectrochemical cells, and solar cells. When natural cellulose substances are employed as the structural template or carbon sources of energy materials, the three-dimensional porous interwoven structures are perfectly replicated, leading to the enhanced performances of the resultant materials. Benefiting from the mechanical strengths of natural cellulose substances, wearable, portable, free-standing, and flexible materials for energy storage and conversion are easily obtained by using natural cellulose substances as the substrates.
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Affiliation(s)
- Zehao Lin
- Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang, 310027, P. R. China
| | - Shun Li
- Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang, 310027, P. R. China
| | - Jianguo Huang
- Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang, 310027, P. R. China
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13
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Cai Y, Yuan F, Li F, Kang H, Xue D, Huo S, Yu F, Fang J, Yang Y. Spacing prior to decorating TiO 2 nanowires with dewetted Au nanoparticles for boosting photoelectrochemical water oxidation. CrystEngComm 2021. [DOI: 10.1039/d1ce00886b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Dewetted Au nanoparticles are used as masks to space out TiO2 nanowires, which restrict the planar coalescence of nanowires and favor the successive decoration of Au nanoparticles by dewetting, thus boosting the PEC water oxidation performance.
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Affiliation(s)
- Yun Cai
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Fengyu Yuan
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Fan Li
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Huihui Kang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Daxiang Xue
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Siping Huo
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Fengjiao Yu
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Jun Fang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Yang Yang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 211816, China
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14
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Synthesis of a novel three-dimensional sponge-like microporous CdS film with high photoelectrochemical performance and stability. J Electroanal Chem (Lausanne) 2020. [DOI: 10.1016/j.jelechem.2020.114524] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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15
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Huang X, Li Y, Gao X, Xue Q, Zhang R, Gao Y, Han Z, Shao M. The effect of the photochemical environment on photoanodes for photoelectrochemical water splitting. Dalton Trans 2020; 49:12338-12344. [PMID: 32844844 DOI: 10.1039/d0dt01566k] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Besides photoelectrode materials, realizing the synergy of the photochemical environment and photoelectrodes for high charge carrier utilization is crucial for enhancing the performance of photoelectrochemical (PEC) water splitting systems. However, few researchers have focused on this important aspect. Herein, the effect of the photochemical environment on photoanodes in PEC water splitting, including the redox potential of electrolytes and light direction, is rationally discussed. A combined study of the potential distribution and electrochemical impedance spectroscopy reveals that the low redox potential of electrolytes facilitates the interior charge transfer and surface charge utilization by enlarging the depletion layer. In addition, it is found that the optimum thickness of semiconductors in photoelectrodes is the length of the depletion layer plus diffusion layer.
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Affiliation(s)
- Xiaoqian Huang
- Hebei Key Laboratory of Organic Functional Molecules, College of Chemistry and Material Science, Hebei Normal University, Shijiazhuang, Hebei 050024, China.
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16
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Xu X, Xiao L, Zhao J, Pan B, Li J, Liao W, Xiong R, Zou G. Molecular Ferroelectrics‐Driven High‐Performance Perovskite Solar Cells. Angew Chem Int Ed Engl 2020; 59:19974-19982. [DOI: 10.1002/anie.202008494] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Indexed: 11/10/2022]
Affiliation(s)
- Xiao‐Li Xu
- College of Energy Soochow Institute for Energy and Materials InnovationS Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province Soochow University Suzhou 215006 China
| | - Ling‐Bo Xiao
- College of Energy Soochow Institute for Energy and Materials InnovationS Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province Soochow University Suzhou 215006 China
| | - Jie Zhao
- College of Energy Soochow Institute for Energy and Materials InnovationS Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province Soochow University Suzhou 215006 China
| | - Bing‐Kun Pan
- College of Energy Soochow Institute for Energy and Materials InnovationS Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province Soochow University Suzhou 215006 China
| | - Jun Li
- College of Energy Soochow Institute for Energy and Materials InnovationS Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province Soochow University Suzhou 215006 China
| | - Wei‐Qiang Liao
- Ordered Matter Science Research Center Nanchang University Nanchang 330031 P. R. China
| | - Ren‐Gen Xiong
- Ordered Matter Science Research Center Nanchang University Nanchang 330031 P. R. China
- Jiangsu Key Laboratory for Science and Applications of Molecular Ferroelectrics Southeast University Nanjing 211189 P. R. China
| | - Gui‐Fu Zou
- College of Energy Soochow Institute for Energy and Materials InnovationS Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province Soochow University Suzhou 215006 China
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17
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Xu X, Xiao L, Zhao J, Pan B, Li J, Liao W, Xiong R, Zou G. Molecular Ferroelectrics‐Driven High‐Performance Perovskite Solar Cells. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202008494] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Xiao‐Li Xu
- College of Energy Soochow Institute for Energy and Materials InnovationS Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province Soochow University Suzhou 215006 China
| | - Ling‐Bo Xiao
- College of Energy Soochow Institute for Energy and Materials InnovationS Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province Soochow University Suzhou 215006 China
| | - Jie Zhao
- College of Energy Soochow Institute for Energy and Materials InnovationS Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province Soochow University Suzhou 215006 China
| | - Bing‐Kun Pan
- College of Energy Soochow Institute for Energy and Materials InnovationS Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province Soochow University Suzhou 215006 China
| | - Jun Li
- College of Energy Soochow Institute for Energy and Materials InnovationS Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province Soochow University Suzhou 215006 China
| | - Wei‐Qiang Liao
- Ordered Matter Science Research Center Nanchang University Nanchang 330031 P. R. China
| | - Ren‐Gen Xiong
- Ordered Matter Science Research Center Nanchang University Nanchang 330031 P. R. China
- Jiangsu Key Laboratory for Science and Applications of Molecular Ferroelectrics Southeast University Nanjing 211189 P. R. China
| | - Gui‐Fu Zou
- College of Energy Soochow Institute for Energy and Materials InnovationS Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province Soochow University Suzhou 215006 China
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Khan HR, Akram B, Aamir M, Malik MA, Tahir AA, Choudhary MA, Akhtar J. Electronic Tuning of Zinc Oxide by Direct Fabrication of Chromium (Cr) incorporated photoanodes for Visible-light driven Water Splitting Applications. Sci Rep 2020; 10:9707. [PMID: 32546696 PMCID: PMC7297714 DOI: 10.1038/s41598-020-66589-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2019] [Accepted: 05/07/2020] [Indexed: 11/16/2022] Open
Abstract
Herein, we report the synthesis of Cr incorporated ZnO sheets arrays microstructures and construction of photoelectrode through a direct aerosol assisted chemical vapour deposition (AACVD) method. The as-prepared Cr incorporated ZnO microstructures were characterized by transmission electron microscopy, scanning electron microscopy, energy dispersive X-ray spectroscopy, powdered X-ray spectroscopy, X-ray photoelectron spectroscopy and UV-Vis diffused reflectance spectroscopy. The Cr incorporation in ZnO red shifted the optical band gap of as-prepared photoanodes. The 15% Cr incorporation in ZnO has shown enhanced PEC performance. The AACVD method provides an efficient in situ incorporation approach for the manipulation of morphological aspects, phase purity, and band structure of photoelectrodes for an enhanced PEC performance.
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Affiliation(s)
- Humaira Rashid Khan
- Materials Laboratory, Department of Chemistry, Mirpur University of Science and Technology (MUST), Mirpur, 10250, (AJK), Pakistan
- School of Materials, The University of Manchester, Oxford Road, Manchester, M13 9PL, UK
- Environment and Sustainability Institute (ESI), University of Exeter Penryn, Cornwall, TR10 9FE, UK
| | - Bilal Akram
- Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Muhammad Aamir
- Materials Laboratory, Department of Chemistry, Mirpur University of Science and Technology (MUST), Mirpur, 10250, (AJK), Pakistan
| | - Muhammad Azad Malik
- School of Materials, The University of Manchester, Oxford Road, Manchester, M13 9PL, UK
| | - Asif Ali Tahir
- Environment and Sustainability Institute (ESI), University of Exeter Penryn, Cornwall, TR10 9FE, UK
| | - Muhammad Aziz Choudhary
- Materials Laboratory, Department of Chemistry, Mirpur University of Science and Technology (MUST), Mirpur, 10250, (AJK), Pakistan
| | - Javeed Akhtar
- Materials Laboratory, Department of Chemistry, Mirpur University of Science and Technology (MUST), Mirpur, 10250, (AJK), Pakistan.
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Pang Y, Zang W, Kou Z, Zhang L, Xu G, Lv J, Gao X, Pan Z, Wang J, Wu Y. Assembling of Bi atoms on TiO 2 nanorods boosts photoelectrochemical water splitting of semiconductors. NANOSCALE 2020; 12:4302-4308. [PMID: 32025688 DOI: 10.1039/d0nr00004c] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Low photoconversion efficiency, high charge transfer resistance and fast recombination rate are the bottlenecks of semiconductor nanomaterials in photoelectrochemical (PEC) water splitting, where the introduction of an appropriate co-catalyst is an effective strategy to improve their performance. In the present study, we have purposely designed atomic-scale dispersed bismuth (Bi) assembled on titanium dioxide nanorods (TiO2), and demonstrated its effective role as a co-catalyst in enhancing the PEC water splitting performance of TiO2. As a result, functionalized Bi/TiO2 generates a high photocurrent intensity at 1.23 VRHE under simulated solar light irradiation, which is 4-fold higher than that of pristine TiO2, exhibiting a significantly improved PEC performance for water splitting. The strategy presented in this study opens a new window for the construction of non-precious metals dispersed at atomic scales as efficient co-catalysts for realizing sustainable solar energy-driven energy conversion and storage.
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Affiliation(s)
- Yajun Pang
- School of Materials Science and Engineering, and Key Laboratory of Advanced Functional Materials and Devices of Anhui Province, Hefei University of Technology, Hefei 230009, China. and Department of Materials Science and Engineering, National University of Singapore, Singapore 117574, Singapore.
| | - Wenjie Zang
- Department of Materials Science and Engineering, National University of Singapore, Singapore 117574, Singapore.
| | - Zongkui Kou
- Department of Materials Science and Engineering, National University of Singapore, Singapore 117574, Singapore.
| | - Lei Zhang
- Department of Materials Science and Engineering, National University of Singapore, Singapore 117574, Singapore.
| | - Guangqing Xu
- School of Materials Science and Engineering, and Key Laboratory of Advanced Functional Materials and Devices of Anhui Province, Hefei University of Technology, Hefei 230009, China. and China International S&T Cooperation Base for Advanced Energy and Environmental Materials, Hefei 230009, China
| | - Jun Lv
- School of Materials Science and Engineering, and Key Laboratory of Advanced Functional Materials and Devices of Anhui Province, Hefei University of Technology, Hefei 230009, China. and China International S&T Cooperation Base for Advanced Energy and Environmental Materials, Hefei 230009, China
| | - Xiaorui Gao
- Department of Materials Science and Engineering, National University of Singapore, Singapore 117574, Singapore.
| | - Zhenghui Pan
- Department of Materials Science and Engineering, National University of Singapore, Singapore 117574, Singapore.
| | - John Wang
- Department of Materials Science and Engineering, National University of Singapore, Singapore 117574, Singapore.
| | - Yucheng Wu
- School of Materials Science and Engineering, and Key Laboratory of Advanced Functional Materials and Devices of Anhui Province, Hefei University of Technology, Hefei 230009, China. and China International S&T Cooperation Base for Advanced Energy and Environmental Materials, Hefei 230009, China
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20
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Zhang YP, Zhang M, Chen XR, Lu C, Young DJ, Ren ZG, Lang JP. Cobalt(II) and Nickel(II) Complexes of a PNN Type Ligand as Photoenhanced Electrocatalysts for the Hydrogen Evolution Reaction. Inorg Chem 2020; 59:1038-1045. [DOI: 10.1021/acs.inorgchem.9b02497] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Ya-Ping Zhang
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, Jiangsu, People’s Republic of China
| | - Min Zhang
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, Jiangsu, People’s Republic of China
| | - Xu-Ran Chen
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, Jiangsu, People’s Republic of China
| | - Chengrong Lu
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, Jiangsu, People’s Republic of China
| | - David James Young
- College of Engineering, Information Technology and Environment, Charles Darwin University, Northern Territory 0909, Australia
| | - Zhi-Gang Ren
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, Jiangsu, People’s Republic of China
- Collaborative Innovation Center for New-type Urbanization and Social Governance of Jiangsu Province, Soochow University, Suzhou 215123, Jiangsu, People’s Republic of China
| | - Jian-Ping Lang
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, Jiangsu, People’s Republic of China
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21
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Huang H, Shang M, Zou Y, Song W, Zhang Y. Iron phosphorus trichalcogenide ultrathin nanosheets: enhanced photoelectrochemical activity under visible-light irradiation. NANOSCALE 2019; 11:21188-21195. [PMID: 31663575 DOI: 10.1039/c9nr07300k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Exploiting novel visible-light sensitive materials for the photoelectrochemical (PEC) technique is deeply meaningful for energy conversion and analytic detection. Owing to the tunable bandgap structure and strong absorption of visible light, the rising-star two-dimensional (2D) metal phosphorus trichalcogenide (MPX3) nanomaterials are expected to be promising photochemical sensitizers toward PEC biosensors. Moreover, guided by DFT calculations, the FePS3 nanosheets possessed a narrower bandgap than the bulk form, thereby enabling high availability of visible-light absorption for the FePS3 nanosheets. In this work, 2D FePS3 nanosheets were successfully synthesized by a facile salt-templated method. By tuning the proportion of the salt template, the thickness of the FePS3 nanosheets could be manipulated. As a result, the FePS3 nanosheets exhibited an obviously enhanced photoelectrochemical behavior with visible light and sensitive detection towards glucose. Being the first experimental report regarding the MPS3 nanosheets toward PEC activity, our finding can be an essential stepping stone in the pursuit of the further exploration of other 2D materials for the PEC technology.
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Affiliation(s)
- Hao Huang
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710062, P. R. China.
| | - Mengxiang Shang
- College of Chemistry, Jilin University, Changchun 130012, P.R. China.
| | - Yongjin Zou
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710062, P. R. China.
| | - Wenbo Song
- College of Chemistry, Jilin University, Changchun 130012, P.R. China.
| | - Ying Zhang
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710062, P. R. China.
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22
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Li M, Chen L, Zhou C, Jin C, Su Y, Zhang Y. 3D highly efficient photonic micro concave-pit arrays for enhanced solar water splitting. NANOSCALE 2019; 11:18071-18080. [PMID: 31506662 DOI: 10.1039/c9nr05778a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The construction of three-dimensional (3D) photonic micro/nanostructures is regarded as one of the most promising approaches to develop highly efficient photoelectrodes for solar water splitting. Here, we report the design and fabrication of an indium tin oxide glass with 3D micro concave-pit arrays (MCPAs) as an effective photonic substrate for dramatically enhanced photoelectrochemical (PEC) water splitting. Compared with the planar counterpart, more than three-fold photocurrent density can be obtained for the 3D photoelectrodes with In2S3 nanosheet arrays grown on the inner surfaces of the MCPAs, mainly ascribable to their largely improved light trapping ability and increased surface area for charge separation and extraction. The PEC performance is further elevated by constructing an effective In2S3/ZnO heterojunction to accelerate the photocarrier separation. As a result, the 3D MCPA-based photoanodes demonstrate a maximum incident photon to current efficiency of 11.7% at 380 nm, which is about four times higher than that of the planar counterpart. The significant advancement demonstrated here provides a facile and low-cost route for the large-scale fabrication of 3D photonic electrodes aiming to achieve highly efficient PEC water splitting.
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Affiliation(s)
- Ming Li
- State Key Lab of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, PR China
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Liang H, Xi H, Liu S, Zhang X, Liu H. Modulation of oxygen vacancy in tungsten oxide nanosheets for Vis-NIR light-enhanced electrocatalytic hydrogen production and anticancer photothermal therapy. NANOSCALE 2019; 11:18183-18190. [PMID: 31556902 DOI: 10.1039/c9nr06222j] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Oxygen vacancy (OV) tuning was introduced into oxygen-deficient WO3 nanosheets to optimize the chemical and electronic properties. Enhanced electronic conduction, extended light absorption, enhanced HER reaction kinetics and benign photothermal performance were verified by density functional theory (DFT) calculations and experimental studies. Vis-NIR light-enhanced electrocatalytic HER was accomplished with a small overpotential of 52 mV (at 10 mA cm-2) and a low Tafel slope of 37 mV dec-1 and performed much more efficiently than that in darkness, comparable to the noble-metal catalysts (Pt, Pt/C). Moreover, the resultant WO3-OVs possess good photothermal conversion efficiency. The promising potential of the WO3-OVs for anticancer photothermal therapy has been demonstrated with a high photothermal conversion efficiency (∼41.6%) upon single wavelength near-infrared irradiation and an efficient tumor inhibition rate (∼96.8%). This design of photoelectronic/thermal materials paves an exciting new avenue for the conversion of well-developed metal oxides to be high-performance and multifunctional materials for energy and oncology applications.
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Affiliation(s)
- Haiyan Liang
- Department of basic Medicine, Shandong First Medical University (Shandong Academy of Medical Sciences), Taian, Shangdong 271000, P. R. China.
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Wang R, Wang F, Long J, Tao Y, Zhou L, Fu H, Liu Y, Jiao B, Deng L, Xiong W. Polarized second-harmonic generation optical microscopy for laser-directed assembly of ZnO nanowires. OPTICS LETTERS 2019; 44:4291-4294. [PMID: 31465385 DOI: 10.1364/ol.44.004291] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2019] [Accepted: 08/05/2019] [Indexed: 06/10/2023]
Abstract
Two-photon polymerization (TPP) based on laser direct writing is currently one of the most prevailing 3D micro/nano fabrication techniques. Nanomaterials can be doped in resins and assembled by TPP for developing advanced 3D functional devices. However, there lacks an effective visualization tool to determine the distribution and orientation of the nanomaterials as-doped in the composite resins. Herein, we present a nondestructive, in situ, and rapid characterization method to determine the orientation and distribution of the nanomaterials within cured resins using polarized second-harmonic generation (p-SHG). The directional assembly of the ZnO nanowires within micro/nanostructures fabricated by TPP is, for the first time to the best of our knowledge, characterized by p-SHG optical microscopy with a fast imaging speed by two orders of magnitude higher than that of the Raman mapping technique. Our method opens a window for nondestructive, rapid, in situ, and polarization-resolved characterization of functional devices made by TPP micro/nanofabrication.
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Wang Y, Li Y, Zhang J, Zhuang J, Ren L, Du Y. Native Surface Oxides Featured Liquid Metals for Printable Self-Powered Photoelectrochemical Device. Front Chem 2019; 7:356. [PMID: 31192188 PMCID: PMC6541107 DOI: 10.3389/fchem.2019.00356] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2019] [Accepted: 04/30/2019] [Indexed: 11/30/2022] Open
Abstract
Constructing high-performance photo-electrodes by patterning the photo-active semiconducting components with desirable texture and architecture is one of the most promising approaches to achieve the practical and scale-up application of photo-electric or photoelectrochemical (PEC) devices. However, it is a still big challenge to efficiently and effectively handle nano-structural semiconducting materials into intergraded circuit devices, displaying good electric-contact and stability. Here, a facile manufacture strategy for fabricating native metal-oxides based photo-electrodes by directly printing Ga-based liquid metals is explored. The PEC device, functionalized by the native Ga-oxide functional layer, exhibits self-powered photo-detection behaviors and presents fast photo-electric responsibility in response to the simulated Sunlight illumination. This printable PEC device shows good potential for high sensitive self-powered photo-detector and provides a flexible and versatile approach for the design and fabrication of novel electrode structures.
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Affiliation(s)
- Yuqing Wang
- School of Physics, Beihang University, Beijing, China
- BUAA-UOW Joint Research Centre, Beihang University, Beijing, China
| | - Yaqi Li
- School of Physics, Beihang University, Beijing, China
- BUAA-UOW Joint Research Centre, Beihang University, Beijing, China
| | - Jingwei Zhang
- School of Physics, Beihang University, Beijing, China
- BUAA-UOW Joint Research Centre, Beihang University, Beijing, China
| | - Jincheng Zhuang
- School of Physics, Beihang University, Beijing, China
- BUAA-UOW Joint Research Centre, Beihang University, Beijing, China
| | - Long Ren
- BUAA-UOW Joint Research Centre, Beihang University, Beijing, China
- Institute for Superconducting and Electronic Materials (ISEM), Australian Institute for Innovative Materials (AIIM), University of Wollongong, Wollongong, NSW, Australia
| | - Yi Du
- School of Physics, Beihang University, Beijing, China
- BUAA-UOW Joint Research Centre, Beihang University, Beijing, China
- Institute for Superconducting and Electronic Materials (ISEM), Australian Institute for Innovative Materials (AIIM), University of Wollongong, Wollongong, NSW, Australia
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