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An Y, Wang L, Jiang W, Yuan G, Qiu Z, Lv X, Sun Y, Hang X, Pang H. Composites of (NH 2)-MIL-53(Al) and CBB as bifunctional electrocatalysts for overall electrochemical water splitting in all pH solutions. J Colloid Interface Sci 2024; 657:811-818. [PMID: 38081115 DOI: 10.1016/j.jcis.2023.12.017] [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: 09/08/2023] [Revised: 11/27/2023] [Accepted: 12/03/2023] [Indexed: 01/02/2024]
Abstract
Electrochemical water splitting is one of the most active areas of energy research, yet the benchmark electrocatalysts used for this area are based on expensive noble metals and transition metals, thus mainly reactions in alkaline solution. MOFs and halide perovskite are novel electrochemical catalysts but unstable in water basically. Here we report a study on composites of (NH2)-MIL-53(Al) MOFs and CBB halide perovskite (Cs3Bi2Br9), which exhibit obvious activity for overall electrochemical water splitting for long-term stability with little deactivation after 10 h in all pH solutions.
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Affiliation(s)
- Yang An
- School of Chemistry and Chemical Engineering (Institute for Innovative Materials and Energy), Yangzhou University, Yangzhou, Jiangsu 225009, PR China.
| | - Lingling Wang
- School of Chemistry and Chemical Engineering (Institute for Innovative Materials and Energy), Yangzhou University, Yangzhou, Jiangsu 225009, PR China
| | - Weiyi Jiang
- Institute of Technology for Carbon Neutrality, College of Environmental Science and Engineering, Yangzhou University, Yangzhou 225127, PR China
| | - Guoqiang Yuan
- School of Chemistry and Chemical Engineering (Institute for Innovative Materials and Energy), Yangzhou University, Yangzhou, Jiangsu 225009, PR China
| | - Ziming Qiu
- School of Chemistry and Chemical Engineering (Institute for Innovative Materials and Energy), Yangzhou University, Yangzhou, Jiangsu 225009, PR China
| | - Xinling Lv
- School of Chemistry and Chemical Engineering (Institute for Innovative Materials and Energy), Yangzhou University, Yangzhou, Jiangsu 225009, PR China
| | - Yangyang Sun
- School of Chemistry and Chemical Engineering (Institute for Innovative Materials and Energy), Yangzhou University, Yangzhou, Jiangsu 225009, PR China
| | - Xinxin Hang
- School of Chemistry and Chemical Engineering (Institute for Innovative Materials and Energy), Yangzhou University, Yangzhou, Jiangsu 225009, PR China
| | - Huan Pang
- School of Chemistry and Chemical Engineering (Institute for Innovative Materials and Energy), Yangzhou University, Yangzhou, Jiangsu 225009, PR China.
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2
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Wongthep S, Pluengphon P, Tantraviwat D, Panchan W, Boochakiat S, Jarusuphakornkul K, Wu Q, Chen J, Inceesungvorn B. New visible-light-driven Bi 2MoO 6/Cs 3Sb 2Br 9 heterostructure for selective photocatalytic oxidation of toluene to benzaldehyde. J Colloid Interface Sci 2024; 655:32-42. [PMID: 37924589 DOI: 10.1016/j.jcis.2023.10.148] [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: 07/26/2023] [Revised: 10/17/2023] [Accepted: 10/27/2023] [Indexed: 11/06/2023]
Abstract
Herein, new Bi2MoO6/Cs3Sb2Br9 heterostructure (BiMo/CSB) was investigated for the first time as a visible-light-driven photocatalyst for C(sp3)-H bond activation using molecular oxygen as a green oxidant and toluene as a model substrate. The optimized BiMo/CSB photocatalyst exhibited enhanced toluene oxidation activity (2,346 μmol g-1h-1), which was almost two- and five-fold that of pristine CSB (1,165 μmol g-1h-1) and BiMo (482 μmol g-1h-1), respectively. The improved photocatalytic performance was essentially attributed to the formation of staggered band energy lineup in the BiMo/CSB hybrid, which promoted S-scheme charge transfer across the BiMo/CSB heterointerface as supported by ultraviolet photoelectron spectroscopy (UPS), density functional theoretical (DFT), time-resolve photoluminescence (TRPL), and photoelectrochemical studies. Spin-trapping electron paramagnetic resonance (EPR) and radical scavenging studies revealed that photoinduced hole, molecular oxygen, and superoxide radical are key active species in this photocatalytic system. The developed BiMo/CSB catalyst provided good selectivity toward benzaldehyde product (94-98 %), presumably due to the inhibiting effect of benzyl alcohol on benzaldehyde oxidation. No significant change in structure and morphology was observed for the spent catalyst, however small negative shift of Sb 3d and Bi 4f binding energy was found suggesting partial reduction of Sb3+ and Bi3+. This work not only provides a new visible-light-driven photocatalyst for C(sp3)-H bond activation but also opens the doors for exploitation of the conversion and functionalization of this inert bond toward the production of high value-added organic chemicals.
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Affiliation(s)
- Sujitra Wongthep
- Department of Chemistry, Center of Excellence for Innovation in Chemistry (PERCH-CIC), and Center of Excellence in Materials Science and Technology, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Prayoonsak Pluengphon
- Division of Physical Science, Faculty of Science and Technology, Huachiew Chalermprakiet University, Samutprakarn 10540, Thailand
| | - Doldet Tantraviwat
- Department of Electrical Engineering, Faculty of Engineering, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Waraporn Panchan
- National Metal and Materials Technology Center (MTEC), National Science and Technology Development Agency (NSTDA), 114 Thailand Science Park, Phahonyothin Road, Khlong Luang, Pathum Thani 12120, Thailand
| | - Sadanan Boochakiat
- Department of Chemistry, Center of Excellence for Innovation in Chemistry (PERCH-CIC), and Center of Excellence in Materials Science and Technology, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand; Intelligent Polymer Research Institute, ARC Centre of Excellence for Electromaterials Science, Australian Institute for Innovative Materials, Innovation Campus, University of Wollongong, North Wollongong, NSW 2500, Australia
| | - Kasornkamol Jarusuphakornkul
- Department of Chemistry, Center of Excellence for Innovation in Chemistry (PERCH-CIC), and Center of Excellence in Materials Science and Technology, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Qilong Wu
- Intelligent Polymer Research Institute, ARC Centre of Excellence for Electromaterials Science, Australian Institute for Innovative Materials, Innovation Campus, University of Wollongong, North Wollongong, NSW 2500, Australia
| | - Jun Chen
- Intelligent Polymer Research Institute, ARC Centre of Excellence for Electromaterials Science, Australian Institute for Innovative Materials, Innovation Campus, University of Wollongong, North Wollongong, NSW 2500, Australia
| | - Burapat Inceesungvorn
- Department of Chemistry, Center of Excellence for Innovation in Chemistry (PERCH-CIC), and Center of Excellence in Materials Science and Technology, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand.
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Cao F, Hu Z, Yan T, Hong E, Deng X, Wu L, Fang X. A Dual-Functional Perovskite-Based Photodetector and Memristor for Visual Memory. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2304550. [PMID: 37467009 DOI: 10.1002/adma.202304550] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 07/16/2023] [Accepted: 07/17/2023] [Indexed: 07/20/2023]
Abstract
The imitation of human visual memory demands the multifunctional integration of light sensors similar to the eyes, and image memory, similar to the brain. Although humans have already implemented electronic devices with visual memory functions, these devices require a combination of various components and logical circuits. However, the combination of visual perception and high-performance information storage capabilities into a single device to achieve visual memory remains challenging. In this study, inspired by the function of human visual memory, a dual-functional perovskite-based photodetector (PD) and memristor are designed to realize visual perception and memory capacities. As a PD, it realizes an ultrahigh self-powered responsivity of 276 mA W-1 , a high detectivity of 4.7 × 1011 Jones (530 nm; light intensities, 2.34 mW cm-2 ), and a high rectification ratio of ≈100 (±2 V). As a memristor, an ultrahigh on/off ratio (≈105 ), an ultralow power consumption of 3 × 10-11 W, a low setting voltage (0.15 V), and a long retention time (>7000 s) are realized. Moreover, the dual-functional device has the capacity to perceive and remember light paths and store data with good cyclic stability. This device exhibits perceptual and cyclic erasable memory functions, which provides new opportunities for mimicking human visual memory in future multifunctional applications.
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Affiliation(s)
- Fa Cao
- Department of Materials Science, State Key Laboratory of Molecular Engineering of Polymers, Fudan University, Shanghai, 200433, P. R. China
| | - Zijun Hu
- Department of Materials Science, State Key Laboratory of Molecular Engineering of Polymers, Fudan University, Shanghai, 200433, P. R. China
| | - Tingting Yan
- Department of Materials Science, State Key Laboratory of Molecular Engineering of Polymers, Fudan University, Shanghai, 200433, P. R. China
| | - Enliu Hong
- Department of Materials Science, State Key Laboratory of Molecular Engineering of Polymers, Fudan University, Shanghai, 200433, P. R. China
| | - Xiaolei Deng
- Department of Materials Science, State Key Laboratory of Molecular Engineering of Polymers, Fudan University, Shanghai, 200433, P. R. China
| | - Limin Wu
- Department of Materials Science, State Key Laboratory of Molecular Engineering of Polymers, Fudan University, Shanghai, 200433, P. R. China
- College of Chemistry and Chemical Engineering Inner Mongolia University Hohhot, Hohhot, 010021, P. R. China
| | - Xiaosheng Fang
- Department of Materials Science, State Key Laboratory of Molecular Engineering of Polymers, Fudan University, Shanghai, 200433, P. R. China
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Meng W, Wang C, Li Y, Hu G, Sui S, Xu G, Peng M, Deng Z. Synthesis of Efficient and Stable Tetrabutylammonium Copper Halides with Dual Emissions for Warm White Light-Emitting Diodes. Chemistry 2023; 29:e202202675. [PMID: 36599805 DOI: 10.1002/chem.202202675] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2022] [Revised: 12/23/2022] [Accepted: 12/27/2022] [Indexed: 01/06/2023]
Abstract
In order to achieve a high color-rendering index (CRI) and low correlated color temperature (CCT) indoor lighting, single-component phosphors with broad-band dual emission are in high demand for white-light-emitting diodes (WLEDs). However, phosphors with such fluorescent properties are rare at present. Herein, we report a facile solid-state chemical method for the synthesis of single-component phosphor with broad-band emission and a large Stokes shift that can meet the requirements of future white-light sources. These new tetrabutylammonium copper halides phosphors have excellent warm white emission characteristics, and their luminescence peaks are located at 494 and 654 nm. The optimized photoluminescence (PL) quantum yield can reach 93.7 %. The typical CIE coordinate of the as-fabricated WLED is at (0.3620, 0.3731) with a CRI of 89 and low CCT of 4516 K.
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Affiliation(s)
- Wen Meng
- College of Engineering and Applied Sciences, State Key Laboratory of Analytical Chemistry for Life Science, Nanjing National Laboratory of Microstructures, Nanjing University, Nanjing, Jiangsu, 210023, P. R. China
| | - Chuying Wang
- College of Engineering and Applied Sciences, State Key Laboratory of Analytical Chemistry for Life Science, Nanjing National Laboratory of Microstructures, Nanjing University, Nanjing, Jiangsu, 210023, P. R. China
| | - Yacong Li
- College of Engineering and Applied Sciences, State Key Laboratory of Analytical Chemistry for Life Science, Nanjing National Laboratory of Microstructures, Nanjing University, Nanjing, Jiangsu, 210023, P. R. China
| | - Guangcai Hu
- College of Engineering and Applied Sciences, State Key Laboratory of Analytical Chemistry for Life Science, Nanjing National Laboratory of Microstructures, Nanjing University, Nanjing, Jiangsu, 210023, P. R. China
| | - Shiqi Sui
- College of Engineering and Applied Sciences, State Key Laboratory of Analytical Chemistry for Life Science, Nanjing National Laboratory of Microstructures, Nanjing University, Nanjing, Jiangsu, 210023, P. R. China
| | - Guangyong Xu
- College of Engineering and Applied Sciences, State Key Laboratory of Analytical Chemistry for Life Science, Nanjing National Laboratory of Microstructures, Nanjing University, Nanjing, Jiangsu, 210023, P. R. China
| | - Min Peng
- College of Engineering and Applied Sciences, State Key Laboratory of Analytical Chemistry for Life Science, Nanjing National Laboratory of Microstructures, Nanjing University, Nanjing, Jiangsu, 210023, P. R. China
| | - Zhengtao Deng
- College of Engineering and Applied Sciences, State Key Laboratory of Analytical Chemistry for Life Science, Nanjing National Laboratory of Microstructures, Nanjing University, Nanjing, Jiangsu, 210023, P. R. China
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Yang Z, Meng W, Kang J, Wang X, Shu X, Chen T, Xu R, Xu F, Hong F. Unraveling the Defect-Dominated Broadband Emission Mechanisms in (001)-Preferred Two-Dimensional Layered Antimony-Halide Perovskite Film. J Phys Chem Lett 2022; 13:11736-11744. [PMID: 36515687 DOI: 10.1021/acs.jpclett.2c03151] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
By adding molar-controlled SbCl3 in a Cs3Sb2Cl9 precursor, we employed a low-temperature solution-processed approach to prepare high-quality (001)-preferred Cs3Sb2Cl9 thin film, which demonstrates a stable defect-dominated broadband emission at room temperature. Density functional theory calculations reveal that the defect emission originates from the donor-acceptor pair (DAP) recombination between chlorine vacancy (VCl) and cesium vacancy (VCs). Furthermore, VCl + VCs DAP is more stable on the (001) surface. The improved film quality and the more stable VCl + VCs DAP increase the activation energy related to defect states, resulting in an enhancement of the defect emission for the high-quality (001)-preferred film. This work provides deep insight into the key role of the (001) surface in defect emission and a feasible strategy to enhance the defect emission in 2D halide perovskites A3B2X9 (A = CH3NH3, Cs, Rb; B = Bi, Sb; X = Cl, Br, I) by control of the thin film preferred orientation.
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Affiliation(s)
- Zichen Yang
- SHU-Solar E R&D Lab, Department of Physics, College of Sciences, Shanghai Key Laboratory of High Temperature Superconductors, Shanghai Frontiers Science Center of Quantum and Superconducting Matter States, Shanghai University, Shanghai200444, China
| | - Weiwei Meng
- School of Physics and Technology, Center for Electron Microscopy, MOE Key Laboratory of Artificial Micro- and Nano-structures, and Institute for Advanced Studies, Wuhan University, Wuhan430072, China
| | - Jiaxing Kang
- SHU-Solar E R&D Lab, Department of Physics, College of Sciences, Shanghai Key Laboratory of High Temperature Superconductors, Shanghai Frontiers Science Center of Quantum and Superconducting Matter States, Shanghai University, Shanghai200444, China
| | - Xiang Wang
- SHU-Solar E R&D Lab, Department of Physics, College of Sciences, Shanghai Key Laboratory of High Temperature Superconductors, Shanghai Frontiers Science Center of Quantum and Superconducting Matter States, Shanghai University, Shanghai200444, China
| | - Xin Shu
- SHU-Solar E R&D Lab, Department of Physics, College of Sciences, Shanghai Key Laboratory of High Temperature Superconductors, Shanghai Frontiers Science Center of Quantum and Superconducting Matter States, Shanghai University, Shanghai200444, China
| | - Teng Chen
- Shanghai Key Laboratory of Mechanics in Energy Engineering, Shanghai Institute of Applied Mathematics and Mechanics, School of Mechanics and Engineering Science, Shanghai University, Shanghai200444, China
| | - Run Xu
- Department of Electronic Information Materials, School of Materials Science and Engineering, Shanghai University, Shanghai200444, China
- Zhejiang Institute of Advanced Materials, Shanghai University, Jiashan314113, China
| | - Fei Xu
- SHU-Solar E R&D Lab, Department of Physics, College of Sciences, Shanghai Key Laboratory of High Temperature Superconductors, Shanghai Frontiers Science Center of Quantum and Superconducting Matter States, Shanghai University, Shanghai200444, China
- Zhejiang Institute of Advanced Materials, Shanghai University, Jiashan314113, China
- State Key Laboratory of Surface Physics, Department of Physics, Fudan University, Shanghai200433, China
| | - Feng Hong
- SHU-Solar E R&D Lab, Department of Physics, College of Sciences, Shanghai Key Laboratory of High Temperature Superconductors, Shanghai Frontiers Science Center of Quantum and Superconducting Matter States, Shanghai University, Shanghai200444, China
- Zhejiang Institute of Advanced Materials, Shanghai University, Jiashan314113, China
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