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Guo X, Wang R, Ni L, Qiu S, Zhang Z. Synthesis of Li 4 Ti 5 O 12 with Tunable Morphology Using l-Cysteine and Its Enhanced Lithium Storage Properties. Chempluschem 2020; 84:123-129. [PMID: 31950747 DOI: 10.1002/cplu.201800575] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2018] [Revised: 12/12/2018] [Indexed: 11/11/2022]
Abstract
Nitrogen and sulfur co-doped carbon-coated Li4 Ti5 O12 (denoted as LTO/NSC) was developed to enhance the electrochemical performance of LTO material. l-Cysteine served as both the carbon source and the heteroatom doping source. The morphology of LTO was tuned by Ti-C bond formation during carbonation process, accompanied by a change in the original orientation growth of the LTO lattice plane. Consequently, LTO transformed from nanosheets to nanoparticles. SEM data proved that the structure of LTO/NSC nanoparticles was more stable than that of LTO nanosheets after hundreds of charge/discharge process. The N,S co-doped carbon layer can moderate particle aggregation and may help to shorten the electron transport length and enhance lithium storage capacity. The structural superiority and the N,S co-doped carbon layer endows LTO/NSC particles with high reversible specific capacity (183 mA h g-1 at 0.1 C), significantly enhanced rate capability (122 mA h g-1 at 10 C) and excellent cycling stability (capacity retention of 96.3 % after 200 cycles) relative to these features of LTO nanosheets. Thus, LTO/NSC is a promising anode material for high-performance lithium ion batteries.
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Affiliation(s)
- Xin Guo
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University, Changchun, 130012, P.R. China
| | - Runwei Wang
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University, Changchun, 130012, P.R. China
| | - Ling Ni
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University, Changchun, 130012, P.R. China
| | - Shilun Qiu
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University, Changchun, 130012, P.R. China
| | - Zongtao Zhang
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University, Changchun, 130012, P.R. China
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Xu Z, Fan L, Ni X, Han J, Guo R. Sn-encapsulated N-doped porous carbon fibers for enhancing lithium-ion battery performance. RSC Adv 2019; 9:8753-8758. [PMID: 35517654 PMCID: PMC9061834 DOI: 10.1039/c8ra10201e] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2018] [Accepted: 03/11/2019] [Indexed: 11/21/2022] Open
Abstract
Tin (Sn) has wide prospects in applications as an anode electrode material for Li-ion batteries, due to its high theoretical specific capacity. However, the large volume expansion of Sn during the charge-discharge process causes a performance reduction of lithium-ion batteries (LIBs). Here, Sn encapsulated N-doped porous carbon fibers (Sn/NPCFs) were synthesized through an electrospinning method with a pyrolysis process. This structure was beneficial for the lithium ion/electron diffusion and buffered the large volume change. By adjusting the amount of Sn, the hybrid carbon fibers with different Sn/carbon ratios could be prepared, and the morphology, composition and properties of the Sn/NPCFs were characterized systematically. The results indicated that the Sn/NPCFs with a Sn-precursor/polymer weight ratio at 0.5 : 1 showed the best cycling stability and specific capacity, preserving the specific capacity of 400 mA h g-1 at the current density of 500 mA g-1 even after 100 cycles.
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Affiliation(s)
- Zhilong Xu
- School of Chemistry and Chemical Engineering, Yangzhou University Yangzhou Jiangsu 225002 P. R. China
| | - Lei Fan
- School of Chemistry and Chemical Engineering, Yangzhou University Yangzhou Jiangsu 225002 P. R. China
| | - Xiangying Ni
- School of Chemistry and Chemical Engineering, Yangzhou University Yangzhou Jiangsu 225002 P. R. China
| | - Jie Han
- School of Chemistry and Chemical Engineering, Yangzhou University Yangzhou Jiangsu 225002 P. R. China
| | - Rong Guo
- School of Chemistry and Chemical Engineering, Yangzhou University Yangzhou Jiangsu 225002 P. R. China
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Xie Z, Jiang C, Xu W, Cui X, de los Reyes C, Martí AA, Wang Y. Facile Self-Assembly Route to Co3O4 Nanoparticles Confined into Single-Walled Carbon Nanotube Matrix for Highly Reversible Lithium Storage. Electrochim Acta 2017. [DOI: 10.1016/j.electacta.2017.03.099] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Xie Z, He Z, Feng X, Xu W, Cui X, Zhang J, Yan C, Carreon MA, Liu Z, Wang Y. Hierarchical Sandwich-Like Structure of Ultrafine N-Rich Porous Carbon Nanospheres Grown on Graphene Sheets as Superior Lithium-Ion Battery Anodes. ACS APPLIED MATERIALS & INTERFACES 2016; 8:10324-10333. [PMID: 27071473 DOI: 10.1021/acsami.6b01430] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
A sandwich-like, graphene-based porous nitrogen-doped carbon (PNCs@Gr) has been prepared through facile pyrolysis of zeolitic imidazolate framework nanoparticles in situ grown on graphene oxide (GO) (ZIF-8@GO). Such sandwich-like nanostructure can be used as anode material in lithium ion batteries, exhibiting remarkable capacities, outstanding rate capability, and cycling performances that are some of the best results among carbonaceous electrode materials and exceed most metal oxide-based anode materials derived from metal orgainc frameworks (MOFs). Apart from a high initial capacity of 1378 mAh g(-1) at 100 mA g(-1), this PNCs@Gr electrode can be cycled at high specific currents of 500 and 1000 mA g(-1) with very stable reversible capacities of 1070 and 948 mAh g(-1) to 100 and 200 cycles, respectively. At a higher specific current of 5000 mA g(-1), the electrode still delivers a reversible capacity of over 530 mAh g(-1) after 400 cycles, showing a capacity retention of as high as 84.4%. Such an impressive electrochemical performance is ascribed to the ideal combination of hierarchically porous structure, a highly conductive graphene platform, and high-level nitrogen doping in the sandwich-like PNCs@Gr electrode obtained via in situ synthesis.
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Affiliation(s)
- Zhiqiang Xie
- Department of Mechanical & Industrial Engineering, Louisiana State University , Baton Rouge, Louisiana 70803, United States
| | - Ziyang He
- Department of Mechanical & Industrial Engineering, Louisiana State University , Baton Rouge, Louisiana 70803, United States
- Department of Industrial & Manufacturing System Engineering, Iowa State University , Ames, Iowa 50011, United States
| | - Xuhui Feng
- Department of Chemical & Biological Engineering, Colorado School of Mines , Golden, Colorado 80401, United States
| | - Wangwang Xu
- Department of Mechanical & Industrial Engineering, Louisiana State University , Baton Rouge, Louisiana 70803, United States
| | - Xiaodan Cui
- Department of Mechanical & Industrial Engineering, Louisiana State University , Baton Rouge, Louisiana 70803, United States
| | - Jiuhong Zhang
- Department of Chemistry & Biochemistry, Kent State University , Kent, Ohio 44240, United States
| | - Cheng Yan
- School of Materials Science & Engineering, Nanyang Technological University , Singapore 639798, Singapore
| | - Moises A Carreon
- Department of Chemical & Biological Engineering, Colorado School of Mines , Golden, Colorado 80401, United States
| | - Zheng Liu
- School of Materials Science & Engineering, Nanyang Technological University , Singapore 639798, Singapore
| | - Ying Wang
- Department of Mechanical & Industrial Engineering, Louisiana State University , Baton Rouge, Louisiana 70803, United States
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Zhang Y, Xie Z, Wang Z, Feng X, Wang Y, Wu A. Unveiling the adsorption mechanism of zeolitic imidazolate framework-8 with high efficiency for removal of copper ions from aqueous solutions. Dalton Trans 2016; 45:12653-60. [DOI: 10.1039/c6dt01827k] [Citation(s) in RCA: 118] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Here we experimentally unveil the adsorption mechanism of Cu2+ by using zeolitic imidazolate framework-8 (ZIF-8) for its application in heavy metal wastewater treatment.
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Affiliation(s)
- Yujie Zhang
- Key Laboratory of Magnetic Materials and Devices & Key Laboratory of Additive Manufacturing Materials of Zhejiang Province & Division of Functional Materials and Nanodevices
- Ningbo Institute of Materials Technology and Engineering
- Chinese Academy of Sciences
- Ningbo 315201
- China
| | - Zhiqiang Xie
- Department of Mechanical & Industrial Engineering
- Louisiana State University
- Baton Rouge
- USA
| | - Zhuqing Wang
- Key Laboratory of Magnetic Materials and Devices & Key Laboratory of Additive Manufacturing Materials of Zhejiang Province & Division of Functional Materials and Nanodevices
- Ningbo Institute of Materials Technology and Engineering
- Chinese Academy of Sciences
- Ningbo 315201
- China
| | - Xuhui Feng
- Department of Chemical & Biological Engineering
- Colorado School of Mines
- Golden
- USA
| | - Ying Wang
- Department of Mechanical & Industrial Engineering
- Louisiana State University
- Baton Rouge
- USA
| | - Aiguo Wu
- Key Laboratory of Magnetic Materials and Devices & Key Laboratory of Additive Manufacturing Materials of Zhejiang Province & Division of Functional Materials and Nanodevices
- Ningbo Institute of Materials Technology and Engineering
- Chinese Academy of Sciences
- Ningbo 315201
- China
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Xu W, Xie Z, Cui X, Zhao K, Zhang L, Dietrich G, Dooley KM, Wang Y. Hierarchical Graphene-Encapsulated Hollow SnO2@SnS2 Nanostructures with Enhanced Lithium Storage Capability. ACS APPLIED MATERIALS & INTERFACES 2015; 7:22533-22541. [PMID: 26389757 DOI: 10.1021/acsami.5b06765] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Complex hierarchical structures have received tremendous attention due to their superior properties over their constitute components. In this study, hierarchical graphene-encapsulated hollow SnO2@SnS2 nanostructures are successfully prepared by in situ sulfuration on the backbones of hollow SnO2 spheres via a simple hydrothermal method followed by a solvothermal surface modification. The as-prepared hierarchical SnO2@SnS2@rGO nanocomposite can be used as anode material in lithium ion batteries, exhibiting excellent cyclability with a capacity of 583 mAh/g after 100 electrochemical cycles at a specific current of 200 mA/g. This material shows a very low capacity fading of only 0.273% per cycle from the second to the 100th cycle, lower than the capacity degradation of bare SnO2 hollow spheres (0.830%) and single SnS2 nanosheets (0.393%). Even after being cycled at a range of specific currents varied from 100 mA/g to 2000 mA/g, hierarchical SnO2@SnS2@rGO nanocomposites maintain a reversible capacity of 664 mAh/g, which is much higher than single SnS2 nanosheets (374 mAh/g) and bare SnO2 hollow spheres (177 mAh/g). Such significantly improved electrochemical performance can be attributed to the unique hierarchical hollow structure, which not only effectively alleviates the stress resulting from the lithiation/delithiation process and maintaining structural stability during cycling but also reduces aggregation and facilitates ion transport. This work thus demonstrates the great potential of hierarchical SnO2@SnS2@rGO nanocomposites for applications as a high-performance anode material in next-generation lithium ion battery technology.
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Affiliation(s)
- Wangwang Xu
- Department of Mechanical & Industrial Engineering, Louisiana State University , Baton Rouge, Louisiana 70803, United States
| | - Zhiqiang Xie
- Department of Mechanical & Industrial Engineering, Louisiana State University , Baton Rouge, Louisiana 70803, United States
| | - Xiaodan Cui
- Department of Mechanical & Industrial Engineering, Louisiana State University , Baton Rouge, Louisiana 70803, United States
| | - Kangning Zhao
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology , Wuhan 430070, China
| | - Lei Zhang
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology , Wuhan 430070, China
| | - Grant Dietrich
- Department of Mechanical & Industrial Engineering, Louisiana State University , Baton Rouge, Louisiana 70803, United States
| | - Kerry M Dooley
- Department of Chemical Engineering, Louisiana State University , Baton Rouge, Louisiana 70803, United States
| | - Ying Wang
- Department of Mechanical & Industrial Engineering, Louisiana State University , Baton Rouge, Louisiana 70803, United States
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