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Zhou Q, Jiang X, Zhang X, Wang D, Yang G, Zhou H, Wu Y, Guo F, Chen M, Diao G, Ni L. Polyoxomolybdate-Based Metal-Organic Framework-Derived Cu-Embedded Molybdenum Dioxide Hybrid Nanoparticles as Highly Efficient Electrocatalysts for Al-S Batteries. CHEMSUSCHEM 2024:e202400424. [PMID: 38682649 DOI: 10.1002/cssc.202400424] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2024] [Revised: 04/28/2024] [Accepted: 04/29/2024] [Indexed: 05/01/2024]
Abstract
High-performance rechargeable aluminum-sulfur batteries (RASB) have great potential for various applications owing to their high theoretical capacity, abundant sulfur resources, and good safety. Nevertheless, the practical application of RASB still faces several challenges, including the polysulfide shuttle phenomenon and low sulfur utilization efficiency. Here, we first developed a synergistic copper heterogeneous metal oxide MoO2 derived from polymolybdate-based metal-organic framework as an efficient catalyst for mitigating polysulfide diffusion. This composite enhances sulfur utilization and electrical conductivity of the cathode. DFT calculations and experimental results reveal the catalyst Cu/MoO2@C not only effectively anchors aluminum polysulfides (AlPSs) to mitigate the shuttle effect, but also significantly promotes the catalytic conversion of AlPSs on the sulfur cathode side during charging and discharging. The unique nanostructure contains abundant electrocatalytic active sites of oxide nanoparticles and Cu clusters, resulting in excellent electrochemical performance. Consequently, the established RASB exhibits an initial capacity of 875 mAh g-1 at 500 mA g-1 and maintains a capacity of 967 mAh g-1 even at a high temperature of 50 °C.
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Affiliation(s)
- Qiuping Zhou
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, 225002, Jiangsu, P. R. China
| | - Xinyuan Jiang
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, 225002, Jiangsu, P. R. China
| | - Xuecheng Zhang
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, 225002, Jiangsu, P. R. China
| | - Dawei Wang
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, 225002, Jiangsu, P. R. China
| | - Guang Yang
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, 225002, Jiangsu, P. R. China
| | - He Zhou
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, 225002, Jiangsu, P. R. China
| | - Yuchao Wu
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, 225002, Jiangsu, P. R. China
| | - Fang Guo
- School of Chemistry and Chemical Engineering, Yancheng Institute of Technology, Yancheng, 224051, Jiangsu, P. R. China
| | - Ming Chen
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, 225002, Jiangsu, P. R. China
| | - Guowang Diao
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, 225002, Jiangsu, P. R. China
| | - Lubin Ni
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, 225002, Jiangsu, P. R. China
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Ky Vo T, Tuan Quang D, Thi Hong Nhung D, Kim J. Cu(I)-loaded boehmite microspheres prepared by the continuous flow-assisted spray-drying method for selective carbon monoxide separation. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.120941] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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He Q, Chen W, Wang P, Dou X. Silicalite-1/PDMS Hybrid Membranes on Porous PVDF Supports: Preparation, Structure and Pervaporation Separation of Dichlorobenzene Isomers. Polymers (Basel) 2022; 14:polym14091680. [PMID: 35566851 PMCID: PMC9101242 DOI: 10.3390/polym14091680] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Revised: 04/11/2022] [Accepted: 04/14/2022] [Indexed: 02/04/2023] Open
Abstract
Separation of dichlorobenzene (DCB) isomers with high purity by time− and energy−saving methods from their mixtures is still a great challenge in the fine chemical industry. Herein, silicalite-1 zeolites/polydimethylsiloxane (PDMS) hybrid membranes (silicalite-1/PDMS) have been successfully fabricated on the porous polyvinylidene fluoride (PVDF) supports to first investigate the pervaporation separation properties of DCB isomers. The morphology and structure of the silicalite-1 zeolites and the silicalite-1/PDMS/PVDF hybrid membranes were characterized by XRD, FTIR, SEM and BET. The results showed that the active silicalite-1/PDMS layers were dense and continuous without any longitudinal cracks and other defects with the silicalite-1 zeolites content no more than 10%. When the silicalite-1 zeolites content exceeded 10%, the surfaces of the active silicalite-1/PDMS layers became rougher, and silicalite-1 zeolites aggregated to form pile pores. The pervaporation experiments both in single-isomer and binary−isomer systems for the separation of DCB isomers was further carried out at 60 °C. The results showed that the silicalite-1/PDMS/PVDF hybrid membranes with 10% silicalite-1 zeolites content had better DCB selective separation performance than the silicalite-1/α−Al2O3 membranes prepared by template method. The permeate fluxes of the DCB isomers increased in the order of m−DCB < o−DCB < p−DCB both in single-isomer and binary-isomers solutions for the silicalite-1/PDMS/PVDF hybrid membranes. The separation factor of the silicalite-1/PDMS/PVDF hybrid membranes for p/o−DCB was 2.9 and for p/m−DCB was 4.6 in binary system. The permeate fluxes of the silicalite-1/PDMS/PVDF hybrid membranes for p−DCB in p/o−DCB and p/m−DCB binary−isomers solutions were 126.2 g∙m−2∙h−1 and 104.3 g∙m−2∙h−1, respectively. The thickness−normalized pervaporation separation index in p/o−DCB binary−isomers solutions was 4.20 μm∙kg∙m−2∙h−1 and in p/m−DCB binary−isomers solutions was 6.57 μm∙kg∙m−2∙h−1. The results demonstrated that the silicalite-1/PDMS/PVDF hybrid membranes had great potential for pervaporation separation of DCB from their mixtures.
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Affiliation(s)
- Qiuping He
- Institute of Photonics & Bio-Medicine, School of Science, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China;
- Shanghai Lvqiang New Materials Co., Ltd., 258 Hengle Road, Shanghai 201806, China
| | - Wei Chen
- Shanghai Lvqiang New Materials Co., Ltd., 258 Hengle Road, Shanghai 201806, China
- State Key Laboratory of Polyolefin Catalytic Technology and High Performance Material, Shanghai Research Institute of Chemical Industry Co., Ltd., 345 Yunling East Road, Shanghai 200062, China
- Correspondence: (W.C.); (P.W.); (X.D.); Tel.: +86-69577696 (W.C.); +86-69577695 (P.W.); +86-69577696 (X.D.)
| | - Pengfei Wang
- Shanghai Lvqiang New Materials Co., Ltd., 258 Hengle Road, Shanghai 201806, China
- State Key Laboratory of Polyolefin Catalytic Technology and High Performance Material, Shanghai Research Institute of Chemical Industry Co., Ltd., 345 Yunling East Road, Shanghai 200062, China
- Correspondence: (W.C.); (P.W.); (X.D.); Tel.: +86-69577696 (W.C.); +86-69577695 (P.W.); +86-69577696 (X.D.)
| | - Xiaoming Dou
- Institute of Photonics & Bio-Medicine, School of Science, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China;
- Correspondence: (W.C.); (P.W.); (X.D.); Tel.: +86-69577696 (W.C.); +86-69577695 (P.W.); +86-69577696 (X.D.)
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