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Qu X, Du A, Wang T, Kong Q, Chen G, Zhang Z, Zhao J, Liu X, Zhou X, Dong S, Cui G. Charge-Compensation in a Displacement Mg 2+ Storage Cathode through Polyselenide-Mediated Anion Redox. Angew Chem Int Ed Engl 2022; 61:e202204423. [PMID: 35419905 DOI: 10.1002/anie.202204423] [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: 03/25/2022] [Indexed: 11/08/2022]
Abstract
Chalcogenides have been viewed as important conversion-type Mg2+ -storage cathodes to fulfill the high volumetric energy density promise of magnesium (Mg) batteries. However, the low initial Columbic efficiency and the rapid capacity degradation remain challenges for the chalcogenide cathodes, as the clear Mg2+ -storage mechanism has yet to be clarified. Herein, we illustrate that the charge storage mechanism of the Cu2-x Se cathode is a reversible displacement reaction along with a polyselenide (PSe) mediated solution process of anion-compensation. The unique anion redox improves charge storage, while the dissolution of PSe also leads to performance degradation. To address this issue, we introduce Mo6 S8 into the Cu2-x Se cathode to immobilize PSe, which significantly improves performance, especially the reversible capacity (from 140 mAh g-1 to 220 mAh g-1 ). This work provides inspiration for the modification of the Mg2+ -storage cathode, which is a milestone for high-performance Mg batteries.
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Affiliation(s)
- Xuelian Qu
- Qingdao Industrial Energy Storage Research Institute, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101, P. R. China.,School of Chemical Engineering, University of Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Aobing Du
- Qingdao Industrial Energy Storage Research Institute, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101, P. R. China
| | - Tao Wang
- Qingdao Industrial Energy Storage Research Institute, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101, P. R. China
| | - Qingyu Kong
- Société Civile Synchrotron SOLEIL, L'Orme des Merisiers, Saint-Aubin, BP 48, 91192, GIF-sur-Yvette CEDEX, France
| | - Guodong Chen
- Qingdao Industrial Energy Storage Research Institute, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101, P. R. China.,School of Chemical Engineering, University of Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Zhonghua Zhang
- College of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao, 266042, P. R. China
| | - Jingwen Zhao
- Qingdao Industrial Energy Storage Research Institute, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101, P. R. China.,Shandong Energy Institute, Qingdao, 266101, P. R. China
| | - Xin Liu
- Qingdao Industrial Energy Storage Research Institute, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101, P. R. China.,School of Chemical Engineering, University of Chinese Academy of Sciences, Beijing, 100190, P. R. China.,School of Future Technology, University of Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Xinhong Zhou
- College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, 266042, P. R. China
| | - Shanmu Dong
- Qingdao Industrial Energy Storage Research Institute, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101, P. R. China.,Shandong Energy Institute, Qingdao, 266101, P. R. China
| | - Guanglei Cui
- Qingdao Industrial Energy Storage Research Institute, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101, P. R. China.,School of Future Technology, University of Chinese Academy of Sciences, Beijing, 100190, P. R. China
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2
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Qu X, Du A, Wang T, Kong Q, Chen G, Zhang Z, Zhao J, Liu X, Zhou X, Dong S, Cui G. Charge‐Compensation in Displacement Mg2+ Storage Cathode through Polyselenide Mediated Anion Redox. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202204423] [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)
- Xuelian Qu
- Qingdao Institute of BioEnergy and Bioprocess Technology Chinese Academy of Sciences Solid Energy System Technology Center CHINA
| | - Aobing Du
- Qingdao Institute of BioEnergy and Bioprocess Technology Chinese Academy of Sciences Solid Energy System Technology Center CHINA
| | - Tao Wang
- Qingdao Institute of BioEnergy and Bioprocess Technology Chinese Academy of Sciences Solid Energy System Technology Center CHINA
| | - Qingyu Kong
- Liaocheng University School of Physics Science and Information Engineering CHINA
| | - Guodong Chen
- Qingdao Institute of BioEnergy and Bioprocess Technology Chinese Academy of Sciences Solid Energy System Technology Center CHINA
| | - Zhonghua Zhang
- Qingdao University of Science and Technology College of Materials Science and Engineering CHINA
| | - Jingwen Zhao
- Qingdao Institute of BioEnergy and Bioprocess Technology Chinese Academy of Sciences Solid Energy System Technology Center CHINA
| | - Xin Liu
- Qingdao Institute of BioEnergy and Bioprocess Technology Chinese Academy of Sciences Solid Energy System Technology Center CHINA
| | - Xinhong Zhou
- Qingdao University of Science and Technology College of Chemistry and Molecular Engineering CHINA
| | - Shanmo Dong
- Qingdao Institute of BioEnergy and Bioprocess Technology Chinese Academy of Sciences Solid Energy System Technology Center CHINA
| | - Guanglei Cui
- Qingdao Institute of BioEnergy and Bioprocess Technology Chinese Academy of Sciences Department of Energy Science and Energy Technology Songling Road, 189 266101 Qingdao City CHINA
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Ghods S, Esfandiar A, Iraji zad A, Vardast S. Enhanced Photoresponse and Wavelength Selectivity by SILAR-Coated Quantum Dots on Two-Dimensional WSe 2 Crystals. ACS OMEGA 2022; 7:2091-2098. [PMID: 35071897 PMCID: PMC8771979 DOI: 10.1021/acsomega.1c05591] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Accepted: 12/21/2021] [Indexed: 06/14/2023]
Abstract
High-performance photodetectors play crucial roles as an essential tool in many fields of science and technology, such as photonics, imaging, spectroscopy, and data communications. Demands for desired efficiency and low-cost new photodetectors through facile manufacturing methods have become a long-standing challenge. We used a simple successive ionic layer adsorption and reaction (SILAR) method to synthesize CdS, CdSe, and PbS nanoparticles directly grown on WSe2 crystalline flakes. In addition to the excellent wavelength selectivity for (30 nm) CdS, (30 nm) CdSe, and (6 nm) PbS/WSe2 heterostructures, the hybrid devices presented an efficient photodetector with a photoresponsivity of 48.72 A/W, a quantum efficiency of 71%, and a response time of 2.5-3.5 ms. Considering the energy band bending structure and numerical simulation data, the electric field distribution at interfaces and photocarrier generation/recombination rates have been studied. The introduced fabrication strategy is fully compatible with the semiconductor industry process, and it can be used as a novel method for fabricating wavelength-tunable and high-performance photodetectors toward innovative optoelectronic applications.
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Affiliation(s)
- Soheil Ghods
- Department
of Physics, Sharif University of Technology, Tehran 11155-9161, Iran
| | - Ali Esfandiar
- Department
of Physics, Sharif University of Technology, Tehran 11155-9161, Iran
| | - Azam Iraji zad
- Department
of Physics, Sharif University of Technology, Tehran 11155-9161, Iran
- Institute
for Nanoscience and Nanotechnology, Sharif
University of Technology, Tehran 11155-9161, Iran
| | - Sajjad Vardast
- Department
of Electrical Engineering, Sharif University
of Technology, Tehran 11155-9161, Iran
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