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Yang H, Zhang W, Yuan Q, Zhao J, Li Y, Xie Y. The fabrication of hierarchical porous nano-SnO2@carbon@humic acid ternary composite for enhanced capacity and stability as anode material for lithium ion battery. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.129560] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Guo Y, Zhao Y, Yang T, Gong B, Chen B. Highly efficient nano-Fe/Cu bimetal-loaded mesoporous silica Fe/Cu-MCM-41 for the removal of Cr(VI): Kinetics, mechanism and performance. JOURNAL OF HAZARDOUS MATERIALS 2021; 418:126344. [PMID: 34130165 DOI: 10.1016/j.jhazmat.2021.126344] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2021] [Revised: 05/27/2021] [Accepted: 06/04/2021] [Indexed: 06/12/2023]
Abstract
Zero valent iron (Fe0) can reduce Cr(VI) in water, where Fe0 and Fe(Ⅱ) are possible electron donors, but passivation and aggregation easily occur to Fe0. To improve the performance of Fe0, a new hybridization strategy of Fe/Cu bimetal and silica-based mesoporous molecular sieve MCM-41 for the removal of Cr(VI) from water has been proposed. The results show that the two-dimensional mesoporous structure of MCM-41 can provide skeleton support for Fe0, improve the mass transfer rate, and overcome the aggregation bottleneck of Fe0. The Cr(VI) removal rate reached 98.98% (pH = 2) after 40 min. The analytical results revealed Cr(VI) removal process: Cr(VI) adsorbed onto Fe/Cu-MCM-41 by electrostatic attraction and other molecular inter-atomic forces. The second metal, Cu, can inhibit the passivation of Fe0 and promote Fe(Ⅱ)through the formation of Fe/Cu battery, thereby promoting the electron transfer. The resulting Cr(Ⅲ) is precipitated as FeCr2O4 and CrxFe1-x(OH)3.
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Affiliation(s)
- Yige Guo
- College of Geology and Environment, Xian University of Science and Technology, Xian 710054, China
| | - Ying Zhao
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China.
| | - Tianxue Yang
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
| | - Bin Gong
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
| | - Bin Chen
- Shaanxi provincial Center for Disease Control and Prevention, Xian 710054, China.
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Ao L, Wu C, Wang X, Xu Y, Jiang K, Shang L, Li Y, Zhang J, Hu Z, Chu J. Superior and Reversible Lithium Storage of SnO 2/Graphene Composites by Silicon Doping and Carbon Sealing. ACS APPLIED MATERIALS & INTERFACES 2020; 12:20824-20837. [PMID: 32282187 DOI: 10.1021/acsami.0c00073] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The poor cycle stability and reversibility seriously hinder the widespread application of SnO2 materials as anodes for lithium-ion batteries (LIBs). A novel sandwich-architecture composite of Si-doped SnO2 nanorods and reduced graphene oxide with carbon sealing (Si-SnO2@G@C) is engineered and fabricated by a facile two-step hydrothermal process and subsequent annealing treatment, which exhibit not only extraordinary rate performance and ultrahigh reversible capacity but also excellent cycle stability and high electrical conductivity as the anode of LIBs. The Si-doped SnO2 nanoparticles on the surface of graphene were firmly wrapped in the C-coating and formed a porous sandwich structure, which can efficiently prevent the Sn nanoparticles from aggregation and provide more extra space for accommodating the volume variations and more active sites for reactions. The carbon layer also blocks the direct contact of the SnO2 nanorods with electrolyte and prevents the graphene nanosheets from the restacking. More importantly, the reversibility of lithiation/delithiation reactions can be remarkably improved by the doping silicon. The doped Si not only accelerates the diffusion of Li+ but also brings a significant increase in the specific capacity. As a consequence, the Si-SnO2@G@C nanocomposite can maintain a high capacity of 654 mAh/g at 2 A/g even after 1200 cycles with negligible capacity loss and excellent reversibility with a Coulombic efficiency retention over 99%, which can be capable of the alternative to commercial graphite anodes. This work provides a new strategy for the reasonable design of advanced anode materials with superior and reversible lithium storage capacity.
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Affiliation(s)
- Liyuan Ao
- Technical Center for Multifunctional Magneto-Optical Spectroscopy (Shanghai), Engineering Research Center of Nanophotonics & Advanced Instrument (Ministry of Education), Department of Materials, School of Physics and Electronic Science, East China Normal University, Shanghai 200241, China
| | - Cong Wu
- Technical Center for Multifunctional Magneto-Optical Spectroscopy (Shanghai), Engineering Research Center of Nanophotonics & Advanced Instrument (Ministry of Education), Department of Materials, School of Physics and Electronic Science, East China Normal University, Shanghai 200241, China
| | - Xiang Wang
- Technical Center for Multifunctional Magneto-Optical Spectroscopy (Shanghai), Engineering Research Center of Nanophotonics & Advanced Instrument (Ministry of Education), Department of Materials, School of Physics and Electronic Science, East China Normal University, Shanghai 200241, China
| | - Yanan Xu
- Technical Center for Multifunctional Magneto-Optical Spectroscopy (Shanghai), Engineering Research Center of Nanophotonics & Advanced Instrument (Ministry of Education), Department of Materials, School of Physics and Electronic Science, East China Normal University, Shanghai 200241, China
| | - Kai Jiang
- Technical Center for Multifunctional Magneto-Optical Spectroscopy (Shanghai), Engineering Research Center of Nanophotonics & Advanced Instrument (Ministry of Education), Department of Materials, School of Physics and Electronic Science, East China Normal University, Shanghai 200241, China
| | - Liyan Shang
- Technical Center for Multifunctional Magneto-Optical Spectroscopy (Shanghai), Engineering Research Center of Nanophotonics & Advanced Instrument (Ministry of Education), Department of Materials, School of Physics and Electronic Science, East China Normal University, Shanghai 200241, China
| | - Yawei Li
- Technical Center for Multifunctional Magneto-Optical Spectroscopy (Shanghai), Engineering Research Center of Nanophotonics & Advanced Instrument (Ministry of Education), Department of Materials, School of Physics and Electronic Science, East China Normal University, Shanghai 200241, China
| | - Jinzhong Zhang
- Technical Center for Multifunctional Magneto-Optical Spectroscopy (Shanghai), Engineering Research Center of Nanophotonics & Advanced Instrument (Ministry of Education), Department of Materials, School of Physics and Electronic Science, East China Normal University, Shanghai 200241, China
| | - Zhigao Hu
- Technical Center for Multifunctional Magneto-Optical Spectroscopy (Shanghai), Engineering Research Center of Nanophotonics & Advanced Instrument (Ministry of Education), Department of Materials, School of Physics and Electronic Science, East China Normal University, Shanghai 200241, China
- Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan, Shanxi 030006, China
- Shanghai Institute of Intelligent Electronics & Systems, Fudan University, Shanghai 200433, China
| | - Junhao Chu
- Technical Center for Multifunctional Magneto-Optical Spectroscopy (Shanghai), Engineering Research Center of Nanophotonics & Advanced Instrument (Ministry of Education), Department of Materials, School of Physics and Electronic Science, East China Normal University, Shanghai 200241, China
- Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan, Shanxi 030006, China
- Shanghai Institute of Intelligent Electronics & Systems, Fudan University, Shanghai 200433, China
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Kong X, Zhang J, Gong Q, Huang J, Yin L, Li J, Feng Q. The Sn–C bond at the interface of a Sn 2Nb 2O 7–Super P nanocomposite for enhanced electrochemical performance. NEW J CHEM 2020. [DOI: 10.1039/c9nj06281e] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A Sn2Nb2O7–Super P nanocomposite (SNO–SP) as an anode material for lithium ion batteries is successfully synthesized through a simple hydrothermal method.
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Affiliation(s)
- Xingang Kong
- School of Materials Science and Engineering
- Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials
- Shaanxi University of Science and Technology
- Xi’an
- P. R. China
| | - Jiarui Zhang
- School of Materials Science and Engineering
- Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials
- Shaanxi University of Science and Technology
- Xi’an
- P. R. China
| | - Qinqin Gong
- School of Materials Science and Engineering
- Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials
- Shaanxi University of Science and Technology
- Xi’an
- P. R. China
| | - Jianfeng Huang
- School of Materials Science and Engineering
- Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials
- Shaanxi University of Science and Technology
- Xi’an
- P. R. China
| | - Lixiong Yin
- School of Materials Science and Engineering
- Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials
- Shaanxi University of Science and Technology
- Xi’an
- P. R. China
| | - Jiayin Li
- School of Materials Science and Engineering
- Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials
- Shaanxi University of Science and Technology
- Xi’an
- P. R. China
| | - Qi Feng
- School of Materials Science and Engineering
- Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials
- Shaanxi University of Science and Technology
- Xi’an
- P. R. China
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Wang J, Zhang Y, Wang J, Gao L, Jiang Z, Ren H, Huang J. Preparation of cobalt sulfide@reduced graphene oxide nanocomposites with outstanding electrochemical behavior for lithium-ion batteries. RSC Adv 2020; 10:13543-13551. [PMID: 35492983 PMCID: PMC9051548 DOI: 10.1039/d0ra01351j] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Accepted: 03/24/2020] [Indexed: 01/09/2023] Open
Abstract
Cobalt sulfide@reduced graphene oxide nanocomposites obtained through a dipping and hydrothermal process, exhibit ascendant lithium-ion storage properties.
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Affiliation(s)
- Junhai Wang
- School of Material and Chemical Engineering
- Chuzhou University
- Chuzhou 239000
- P. R. China
| | - Yongxing Zhang
- Anhui Province Key Laboratory of Pollutant Sensitive Materials and Environmental Remediation
- Huaibei Normal University
- Huaibei 235000
- P. R. China
| | - Jun Wang
- Key Laboratory of Functional Molecular Solids
- Ministry of Education
- Key Laboratory of Electrochemical Clean Energy of Anhui Higher Education Institutes
- College of Chemistry and Materials Science
- Anhui Normal University
| | - Lvlv Gao
- Key Laboratory of Functional Molecular Solids
- Ministry of Education
- Key Laboratory of Electrochemical Clean Energy of Anhui Higher Education Institutes
- College of Chemistry and Materials Science
- Anhui Normal University
| | - Zinan Jiang
- Key Laboratory of Functional Molecular Solids
- Ministry of Education
- Key Laboratory of Electrochemical Clean Energy of Anhui Higher Education Institutes
- College of Chemistry and Materials Science
- Anhui Normal University
| | - Haibo Ren
- Key Laboratory of Functional Molecular Solids
- Ministry of Education
- Key Laboratory of Electrochemical Clean Energy of Anhui Higher Education Institutes
- College of Chemistry and Materials Science
- Anhui Normal University
| | - Jiarui Huang
- Key Laboratory of Functional Molecular Solids
- Ministry of Education
- Key Laboratory of Electrochemical Clean Energy of Anhui Higher Education Institutes
- College of Chemistry and Materials Science
- Anhui Normal University
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Tian Q, Chen Y, Chen F, Chen J, Yang L. Walnut core-like hollow carbon micro/nanospheres supported SnO @C composite for high performance lithium-ion battery anode. J Colloid Interface Sci 2019; 554:424-432. [DOI: 10.1016/j.jcis.2019.07.026] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2019] [Revised: 07/03/2019] [Accepted: 07/12/2019] [Indexed: 10/26/2022]
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