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Li Y, Wu S, Liu Z, Yang W, Fan H, Zhang Y. Multiple Heterointerfaces and Heterostructure Engineering in MXene@Co-P-S Hybrids Promote High-Performance Sodium-Ion Half/Full Batteries. Inorg Chem 2024; 63:18855-18864. [PMID: 39325016 DOI: 10.1021/acs.inorgchem.4c02995] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/27/2024]
Abstract
In this paper, heterogeneous cobalt phosphosulfide (Co4S3/Co2P) nanocrystals anchoring on few-layered MXene nanosheets (MXene@Co4S3/Co2P) were prepared by in situ growth and the subsequent high-temperature phosphorization/sulfidation processes. Thanks to the synergistic effect and the abundant phase interfaces of Co4S3, Co2P, and MXene, the electron transfer and Na+ diffusion processes were greatly accelerated. Meanwhile, the high electrical conductivity of MXene nanosheets and the heterogeneous structure of Co4S3/Co2P effectively avoided the MXene restacking and the agglomeration of phosphosulfide particles, thus mitigating volumetric expansion during charging and discharging. The results show that the MXene@Co4S3/Co2P heterostructure presents good rate capability (251.08 mAh g-1 at 1 A g-1) and excellent cycling stability (198.69 mAh g-1 after 407 cycles at 5 A g-1). Finally, the storage mechanism of Na+ in the heterostructure and the multistep phase transition reaction were determined by ex situ X-ray diffraction (XRD), electrochemical impedance spectroscopy (EIS), and X-ray photoelectron spectroscopy (XPS) analyses. This study provides a new perspective on the formation of metal phosphosulfide and MXene hybrids with multiple heterointerfaces as well as demonstrates MXene@Co4S3/Co2P composites as the promising anode material in sodium-ion batteries.
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Affiliation(s)
- Yining Li
- School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, P. R. China
| | - Shimei Wu
- School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, P. R. China
| | - Zhiting Liu
- School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, P. R. China
| | - Wei Yang
- School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, P. R. China
| | - Haosen Fan
- School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, P. R. China
| | - Yufei Zhang
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, P. R. China
- Jieyang Branch of Chemistry and Chemical Engineering Guangdong Laboratory, Jieyang 515200, P. R. China
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2
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Xia P, Peng X, Yuan L, Li S, Jing S, Lu S, Zhang Y, Fan H. Core-shell Ru@Co 2P synergistic catalyst as polysulfides adsorption-catalytic conversion mediator with enhanced redox kinetics in lithium-sulfur batteries. J Colloid Interface Sci 2024; 678:619-629. [PMID: 39265334 DOI: 10.1016/j.jcis.2024.09.072] [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: 05/26/2024] [Revised: 08/12/2024] [Accepted: 09/07/2024] [Indexed: 09/14/2024]
Abstract
Lithium-sulfur batteries (LSBs) have emerged as the research hotspot due to their compelling merits, including high specific capacity (1675 mAh g-1), theoretical energy density (2600 Wh kg-1), environmental friendliness, and economic advantages. However, challenges still exist for further application due to their inherent issues such as the natural insulation, shuttle effect, and volume expansion of sulfur cathode during the continuous cycle processes. These factors obstruct the lithium ions (Li+) transfer process and sulfur utilization, resulting in significant impedance and inducing inferior battery performance. Herein, the core-shell nanocube anchoring ruthenium atoms and dicobalt phosphate (Ru@Co2P@NC) were fabricated as the effective catalyst and inhibited barrier for LSBs. On the one hand, the core-shell structure offers numerous channels to expedite Li+ diffusion. On the other hand, ruthenium (Ru) and dicobalt phosphate (Co2P) active sites facilitate the chemical capture of lithium polysulfides (LiPSs), accelerating sluggish kinetics. Ru@Co2P@NC modified cells not only exhibited a high initial specific capacity (1609.35 mAh g-1) at 0.5C and enduring stability with high specific capacity retention of 906.60 mAh g-1 at 0.5C after 400 cycles but also possessed low capacity attenuation rate of 0.07 % per cycle after 600 cycles (1C, Sulfur loading: 1.2 mg). Interestingly, the modified cells demonstrated a high specific capacity and long-cycle stability with high sulfur loading (from 1.984 to 3.137 mg), which provides a promising research approach for high-performance LSBs.
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Affiliation(s)
- Peng Xia
- College of Materials Science and Metallurgy Engineering, Guizhou University, Guiyang 550025, China; School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, China
| | - Xiaoli Peng
- College of Materials Science and Metallurgy Engineering, Guizhou University, Guiyang 550025, China
| | - Long Yuan
- College of Materials Science and Metallurgy Engineering, Guizhou University, Guiyang 550025, China
| | - Shilan Li
- College of Materials Science and Metallurgy Engineering, Guizhou University, Guiyang 550025, China
| | - Shengdong Jing
- College of Materials Science and Metallurgy Engineering, Guizhou University, Guiyang 550025, China
| | - Shengjun Lu
- College of Materials Science and Metallurgy Engineering, Guizhou University, Guiyang 550025, China.
| | - Yufei Zhang
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, PR China; Jieyang Branch of Chemistry and Chemical Engineering Guangdong Laboratory, Jieyang 515200, China.
| | - Haosen Fan
- School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, China.
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3
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Wu S, Li Y, Yang W, Liu Z, Zhang Y, Fan H. Multiple heteroatoms co-doped carbon layers coupled with Janus sulfides (CoS 2@NPSC@MoS 2) for super Na +/K + storage. J Colloid Interface Sci 2024; 678:477-486. [PMID: 39260296 DOI: 10.1016/j.jcis.2024.09.010] [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: 06/20/2024] [Revised: 08/24/2024] [Accepted: 09/01/2024] [Indexed: 09/13/2024]
Abstract
As the most promising anodes for Na+/K+ batteries (SIBs/PIBs), transitional metal sulfides present the advantages of high capacity, straightforwardly-controlled morphology and abundant redox reaction sites. However, maintaining the structural integrity of the electrode materials during cycling and improving the cycle life still face great challenges. Herein, CoS2@NPSC@MoS2 nano-spindle heterostructure with multiple heteroatoms co-doped carbon layers coupled with Janus metal sulfides (CoS2 and MoS2) were successfully fabricated via the successive organic coating, gas-phase phosphorization and the final hydrothermal reaction processes. Benefiting from the uniformly dispersed CoS2 nanocrystals in the interior of carbon layer and the MoS2 nanosheets arrays in the exterior, Na+/K+ diffusion distances are remarkedly shortened and the reaction kinetics are greatly improved, which also provide more active sites on the surface for exposure to the electrolyte. The presence of heterogeneous atomic N/P/S co-doped carbon layer greatly improves the electrochemical conductivity of the heterostructure and provide additional buffer space for volume changes, which is conducive to retaining the integrity of the electrode structure during the cycling processes. When used as the anode material for SIBs/PIBs, it reached the reversible specific capacity of 340.44 mAh g-1 at 5.0 A g-1 after 1000 cycles for SIBs and 37.53 mAh g-1 at 5.0 A g-1 after 800 cycles for PIBs. This work demonstrates a reliable and simple strategy for the rational design of Janus metal sulfides heterostructures for high performance Na+/K+ storage application.
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Affiliation(s)
- Shimei Wu
- School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, PR China
| | - Yining Li
- School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, PR China
| | - Wei Yang
- School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, PR China
| | - Zhiting Liu
- School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, PR China
| | - Yufei Zhang
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, PR China; Jieyang Branch of Chemistry and Chemical Engineering Guangdong Laboratory, Jieyang 515200, PR China.
| | - Haosen Fan
- School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, PR China.
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Ren YJ, Guan HB, Hou YL, Zhang BH, Tian KK, Xiong BQ, Chen JZ, Zhao DL. Enhancing Rapid Li +/Na + Storage Performance via Interface Engineering of Reduced Graphene Oxide-Wrapped Bimetallic Sulfide Nanocages. ACS APPLIED MATERIALS & INTERFACES 2024; 16:45619-45631. [PMID: 39162184 DOI: 10.1021/acsami.4c06039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/21/2024]
Abstract
Transition-metal sulfide is considered to be an admirable transformational electrode material due to low cost, large specific capacity, and good reversibility in lithium-ion batteries (LIBs) and sodium-ion batteries (SIBs). Herein, the reduced graphene oxide-wrapped open bimetallic sulfide (NiS2-Co3S4@rGO) nanocage, derived from nickel-cobalt Prussian blue, was obtained by two-step calcination. There are luxuriant pore structures in the nanocage composite with a specific surface area of 85.28 m2 g-1, which provides plentiful paths for rapid transmission of Li+/Na+ and alleviates the volume stress caused by insertion and extraction of alkali metal ions. The excellent interface combination of bimetallic sulfide wrapped in reduced graphene oxide improves the conductivity and overall performance of the battery. Thanks to the special interface engineering, the open NiS2-Co3S4@rGO nanocage composite displays rapid lithium storage properties with an average diffusion coefficient of 8.5 × 10-13 cm2 s-1. Moreover, after 300 cycles, the reversible capacity of the composite is 1113.2 mAh g-1 at 1 A g-1. In SIBs, the capacity of the open NiS2-Co3S4@rGO composite is 487.9 mAh g-1 when the current density is 5 A g-1. These preeminent performances demonstrate the enormous development prospects of bimetallic sulfide nanocage as anode material in LIBs and SIBs.
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Affiliation(s)
- Yu-Jie Ren
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China
- Key Laboratory of Carbon Fiber and Functional Polymers (Beijing University of Chemical Technology), Ministry of Education, Beijing 100029, China
| | - Hao-Bo Guan
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China
- Key Laboratory of Carbon Fiber and Functional Polymers (Beijing University of Chemical Technology), Ministry of Education, Beijing 100029, China
| | - Yun-Lei Hou
- College of Chemical Engineering, Qinghai University, Xining 810016, China
| | - Bo-Han Zhang
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China
- Key Laboratory of Carbon Fiber and Functional Polymers (Beijing University of Chemical Technology), Ministry of Education, Beijing 100029, China
| | - Kuan-Kuan Tian
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China
- Key Laboratory of Carbon Fiber and Functional Polymers (Beijing University of Chemical Technology), Ministry of Education, Beijing 100029, China
| | - Bai-Qin Xiong
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China
- Key Laboratory of Carbon Fiber and Functional Polymers (Beijing University of Chemical Technology), Ministry of Education, Beijing 100029, China
| | - Jing-Zhou Chen
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China
- Key Laboratory of Carbon Fiber and Functional Polymers (Beijing University of Chemical Technology), Ministry of Education, Beijing 100029, China
| | - Dong-Lin Zhao
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China
- Key Laboratory of Carbon Fiber and Functional Polymers (Beijing University of Chemical Technology), Ministry of Education, Beijing 100029, China
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Guo X, Wan P, Xia P, Jin X, Lu S, Zhang Y, Fan H. Accelerating catalytic conversion and chemisorption of polysulfides for advanced Li-S batteries from incorporating Fe 0.64Ni 0.36@Co 5.47N hetero-nanocrystals into boron carbonitride nanotubes. J Colloid Interface Sci 2024; 678:393-406. [PMID: 39213992 DOI: 10.1016/j.jcis.2024.08.176] [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: 05/06/2024] [Revised: 07/11/2024] [Accepted: 08/22/2024] [Indexed: 09/04/2024]
Abstract
With the rapid development of large-scale clean energy, lithium-sulfur (Li-S) batteries are considered to be one of the most promising energy storage devices. In this manuscript, the polymetallic hetero-nanocrystal of iron nickel@cobalt nitride encapsulating into boron carbonitride nanotubes (Fe0.64Ni0.36@Co5.47N@BCN) was designed and optimized for use as a modified material for commercial polypropylene (PP) separators. The prepared Fe0.64Ni0.36@Co5.47N@BCN-12 hybrid material presents strong chemisorption and catalytic conversion capabilities, which endows the Fe0.64Ni0.36@Co5.47N@BCN-12//PP separator with enhanced polysulfide shuttling inhibition. The assembled Li-S cells with Fe0.64Ni0.36@Co5.47N@BCN-12//PP separators have minimized charge transfer resistance and faster redox kinetics. Additionally, cells with Fe0.64Ni0.36@Co5.47N@BCN-12//PP separator provide high reversible capacity of 674 mAh/g for 400 cycles at 0.5C and excellent cyclability for 1000 cycles at 2C with a low decay rate of 0.05 % per cycle. Therefore, this study provides a feasible functionalization route for improving the electrochemical performance of Li-S batteries through separator modification.
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Affiliation(s)
- Xincheng Guo
- College of Materials Science and Metallurgy Engineering, Guizhou University, Guiyang 550025, China
| | - Pengfei Wan
- College of Materials Science and Metallurgy Engineering, Guizhou University, Guiyang 550025, China
| | - Peng Xia
- College of Materials Science and Metallurgy Engineering, Guizhou University, Guiyang 550025, China; School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, China
| | - Xuanyang Jin
- College of Materials Science and Metallurgy Engineering, Guizhou University, Guiyang 550025, China
| | - Shengjun Lu
- College of Materials Science and Metallurgy Engineering, Guizhou University, Guiyang 550025, China.
| | - Yufei Zhang
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China; Jieyang Branch of Chemistry and Chemical Engineering Guangdong Laboratory, Jieyang 515200, China.
| | - Haosen Fan
- School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, China.
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Zhang KY, Liu HH, Su MY, Yang JL, Wang XT, Huixiang Ang E, Gu ZY, Zheng SH, Heng YL, Liang HJ, Wang Y, Li S, Wu XL. Defect engineering unveiled: Enhancing potassium storage in expanded graphite anode. J Colloid Interface Sci 2024; 664:607-616. [PMID: 38490036 DOI: 10.1016/j.jcis.2024.03.084] [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: 01/26/2024] [Revised: 03/08/2024] [Accepted: 03/11/2024] [Indexed: 03/17/2024]
Abstract
Expanded graphite (EG) stands out as a promising material for the negative electrode in potassium-ion batteries. However, its full potential is hindered by the limited diffusion pathway and storage sites for potassium ions, restricting the improvement of its electrochemical performance. To overcome this challenge, defect engineering emerges as a highly effective strategy to enhance the adsorption and reaction kinetics of potassium ions on electrode materials. This study delves into the specific effectiveness of defects in facilitating potassium storage, exploring the impact of defect-rich structures on dynamic processes. Employing ball milling, we introduce surface defects in EG, uncovering unique effects on its electrochemical behavior. These defects exhibit a remarkable ability to adsorb a significant quantity of potassium ions, facilitating the subsequent intercalation of potassium ions into the graphite structure. Consequently, this process leads to a higher potassium voltage. Furthermore, the generation of a diluted stage compound is more pronounced under high voltage conditions, promoting the progression of multiple stage reactions. Consequently, the EG sample post-ball milling demonstrates a notable capacity of 286.2 mAh g-1 at a current density of 25 mA g-1, showcasing an outstanding rate capability that surpasses that of pristine EG. This research not only highlights the efficacy of defect engineering in carbon materials but also provides unique insights into the specific manifestations of defects on dynamic processes, contributing to the advancement of potassium-ion battery technology.
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Affiliation(s)
- Kai-Yang Zhang
- MOE Key Laboratory for UV Light-Emitting Materials and Technology, Northeast Normal University, Changchun, Jilin 130024, China
| | - Han-Hao Liu
- Faculty of Chemistry, Northeast Normal University, Changchun, Jilin 130024, China
| | - Meng-Yuan Su
- Faculty of Chemistry, Northeast Normal University, Changchun, Jilin 130024, China
| | - Jia-Lin Yang
- MOE Key Laboratory for UV Light-Emitting Materials and Technology, Northeast Normal University, Changchun, Jilin 130024, China
| | - Xiao-Tong Wang
- MOE Key Laboratory for UV Light-Emitting Materials and Technology, Northeast Normal University, Changchun, Jilin 130024, China
| | - Edison Huixiang Ang
- Natural Sciences and Science Education, National Institute of Education, Nanyang Technological University, 637616, Singapore
| | - Zhen-Yi Gu
- MOE Key Laboratory for UV Light-Emitting Materials and Technology, Northeast Normal University, Changchun, Jilin 130024, China
| | - Shuo-Hang Zheng
- MOE Key Laboratory for UV Light-Emitting Materials and Technology, Northeast Normal University, Changchun, Jilin 130024, China
| | - Yong-Li Heng
- MOE Key Laboratory for UV Light-Emitting Materials and Technology, Northeast Normal University, Changchun, Jilin 130024, China
| | - Hao-Jie Liang
- MOE Key Laboratory for UV Light-Emitting Materials and Technology, Northeast Normal University, Changchun, Jilin 130024, China
| | - Yinglin Wang
- MOE Key Laboratory for UV Light-Emitting Materials and Technology, Northeast Normal University, Changchun, Jilin 130024, China
| | - Shuying Li
- Faculty of Chemistry, Northeast Normal University, Changchun, Jilin 130024, China.
| | - Xing-Long Wu
- MOE Key Laboratory for UV Light-Emitting Materials and Technology, Northeast Normal University, Changchun, Jilin 130024, China.
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Guan J, Zhou S, Zhou J, Wu F, Shi X, Xu J, Shao L, Luo Z, Sun Z. Microwave-Assisted Hydrothermal Synthesis of Na 3V 2(PO 4) 2F 3 Nanocuboid@Reduced Graphene Oxide as an Ultrahigh-Rate and Superlong-Lifespan Cathode for Fast-Charging Sodium-Ion Batteries. ACS APPLIED MATERIALS & INTERFACES 2024. [PMID: 38616703 DOI: 10.1021/acsami.4c01894] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/16/2024]
Abstract
Na3V2(PO4)2F3 (NVPF) has been regarded as a favorable cathode for sodium-ion batteries (SIBs) due to its high voltage and stable structure. However, the limited electronic conductivity restricts its rate performance. NVPF@reduced graphene oxide (rGO) was synthesized by a facile microwave-assisted hydrothermal approach with subsequent calcination to shorten the hydrothermal time. NVPF nanocuboids with sizes of 50-150 nm distributed on rGO can be obtained, delivering excellent electrochemical performance such as a longevity life (a high capacity retention of 85.6% after 7000 cycles at 10 C) and distinguished rate capability (116 mAh g-1 at 50 C with a short discharging/charging time of 1.2 min). The full battery with a Cu2Se anode represents a capacity of 116 mAh g-1 at 0.2 A g-1. The introduction of rGO can augment the electronic conductivity and advance the Na+ diffusion speed, boosting the cycling and rate capability. Besides, the small lattice change (3.3%) and high structural reversibility during the phase transition process between Na3V2(PO4)2F3 and NaV2(PO4)2F3 testified by in situ X-ray diffraction are also advantageous for Na storage behavior. This work furnishes a simple method to synthesize polyanionic cathodes with ultrahigh rate and ultralong lifespan for fast-charging SIBs.
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Affiliation(s)
- Jieduo Guan
- School of Materials and Energy, Guangdong University of Technology, Guangzhou, Guangdong 510006, China
| | - Shilin Zhou
- School of Materials and Energy, Guangdong University of Technology, Guangzhou, Guangdong 510006, China
| | - Jiajie Zhou
- School of Materials and Energy, Guangdong University of Technology, Guangzhou, Guangdong 510006, China
| | - Fangdan Wu
- School of Materials and Energy, Guangdong University of Technology, Guangzhou, Guangdong 510006, China
| | - Xiaoyan Shi
- School of Materials and Energy, Guangdong University of Technology, Guangzhou, Guangdong 510006, China
| | - Junling Xu
- School of Materials and Energy, Guangdong University of Technology, Guangzhou, Guangdong 510006, China
| | - Lianyi Shao
- School of Materials and Energy, Guangdong University of Technology, Guangzhou, Guangdong 510006, China
| | - Zhiqiang Luo
- Tianjin Key Lab for Photoelectric Materials & Devices, School of Materials Science and Engineering, Tianjin University of Technology, Tianjin 300384, China
| | - Zhipeng Sun
- School of Materials and Energy, Guangdong University of Technology, Guangzhou, Guangdong 510006, China
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8
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Chen M, Zhao MY, Liu FM, Li MT, Zhang ML, Qian X, Yuan ZY, Li CS, Wan R. Self-Catalyzed Synthesis of Length-Controlled One-Dimensional Nickel Oxide@N-Doped Porous Carbon Nanostructures from Metal Ion Modified Nitrogen Heterocycles for Efficient Lithium Storage. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:4852-4859. [PMID: 38382061 DOI: 10.1021/acs.langmuir.3c03742] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/23/2024]
Abstract
Transition metal oxides with the merits of high theoretical capacities, natural abundance, low cost, and environmental benignity have been regarded as a promising anodic material for lithium ion batteries (LIBs). However, the severe volume expansion upon cycling and poor conductivity limit their cycling stability and rate capability. To address this issue, NiO embedded and N-doped porous carbon nanorods (NiO@NCNR) and nanotubes (NiO@NCNT) are synthesized by the metal-catalyzed graphitization and nitridization of monocrystalline Ni(II)-triazole coordinated framework and Ni(II)/melamine mixture, respectively, and the following oxidation in air. When applied as an anodic material for LIBs, the NiO@NCNR and NiO@NCNT hybrids exhibit a decent capacity of 895/832 mA h g-1 at 100 mA g-1, high rate capability of 484/467 mA h g-1 at 5.0 A g-1, and good long-term cycling stability of 663/634 mA h g-1 at 600th cycle at 1 A g-1, which are much better than those of NiO@carbon black (CB) control sample (701, 214, and 223 mA h g-1). The remarkable electrochemical properties benefit from the advanced nanoarchitecture of NiO@NCNR and NiO@NCNT, which offers a length-controlled one-dimensional porous carbon nanoarchitecture for effective e-/Li+ transport, affords a flexible carbon skeleton for spatial confinement, and forms abundant nanocavities for stress buffering and structure reinforcement during discharge/charging processes. The rational structural design and synthesis may pave a way for exploring advanced metal oxide based anodic materials for next-generation LIBs.
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Affiliation(s)
- Ming Chen
- College of Chemistry and Chemical Engineering, Xinyang Normal University, Xinyang 464000, China
| | - Ming-Yang Zhao
- College of Chemistry and Chemical Engineering, Xinyang Normal University, Xinyang 464000, China
| | - Feng-Ming Liu
- College of Chemistry and Chemical Engineering, Xinyang Normal University, Xinyang 464000, China
| | - Meng-Ting Li
- College of Chemistry and Chemical Engineering, Xinyang Normal University, Xinyang 464000, China
| | - Meng-Lei Zhang
- College of Chemistry and Chemical Engineering, Xinyang Normal University, Xinyang 464000, China
| | - Xing Qian
- College of Chemical Engineering, Fuzhou University, Fuzhou 350116, China
| | - Zhong-Yong Yuan
- School of Materials Science and Engineering, Nankai University, Tianjin 300071, China
| | - Chun-Sheng Li
- School of Chemistry and Life Sciences, Suzhou University of Science and Technology, Suzhou 215000, China
| | - Rong Wan
- College of Chemistry and Chemical Engineering, Xinyang Normal University, Xinyang 464000, China
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9
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Wan P, Peng X, Dong S, Liu X, Lu S, Zhang Y, Fan H. Synergistic enhancement of chemisorption and catalytic conversion in lithium-sulfur batteries via Co 3Fe 7/Co 5.47N separator mediator. J Colloid Interface Sci 2024; 657:757-766. [PMID: 38071824 DOI: 10.1016/j.jcis.2023.12.013] [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: 11/03/2023] [Revised: 11/28/2023] [Accepted: 12/03/2023] [Indexed: 01/02/2024]
Abstract
Lithium-sulfur batteries (LSBs) show considerable potential in next-generation high performance batteries, but the heavy shuttle effect and sluggish redox kinetics of polysulfide hinder their further applications. In this paper, to address these shortcomings of LSBs, Co3Fe7/Co5.47N heterostructure were prepared and constructed from their Fe-Co Prussian blue analogue precursors under the condition of high temperature pyrolysis. The obtained Co3Fe7/Co5.47N display excellent immobilization-diffusion-conversion performance for polysulfides by synergistic effect in successfully hindering the shuttle effect of polysulfides. When the Co3Fe7/Co5.47N heterostructure were applied to modify the commercial polypropylene (PP) separator, the batteries displayed fantastic rate capacity and cycling stability. Specifically, the Co3Fe7/Co5.47N-PP batteries exhibit an extremely satisfactory initial specific capacity of 1430 m Ah/g at 0.5C, wonderful rate capacity of around 780 m Ah/g at 3C and superior per cycle decaying rate of 0.08 % for 500 cycles at 0.5C. When the current density reaches to 2C, the batteries still exhibit 501 m Ah/g after 900 cycles with 0.015 % per cycle decay rate. Besides, even in the high loading of sulfur (3.0 mg cm-2) at 0.5C, the superior cycling stability (0.075 % per cycle decay rate after 200 cycles) and high specific capacity (741 mAh/g after 200 cycles) can still be performed. Thus, this work provides a facile method for high-powered and long-life Li-S batteries with eminent entrapping-conversion processes of polysulfides.
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Affiliation(s)
- Pengfei Wan
- College of Materials Science and Metallurgy Engineering, Guizhou University, Guiyang 550025, China
| | - Xiaoli Peng
- College of Materials Science and Metallurgy Engineering, Guizhou University, Guiyang 550025, China
| | - Siyang Dong
- College of Materials Science and Metallurgy Engineering, Guizhou University, Guiyang 550025, China
| | - Xinyun Liu
- College of Materials Science and Metallurgy Engineering, Guizhou University, Guiyang 550025, China
| | - Shengjun Lu
- College of Materials Science and Metallurgy Engineering, Guizhou University, Guiyang 550025, China.
| | - Yufei Zhang
- College of Materials Science and Metallurgy Engineering, Guizhou University, Guiyang 550025, China.
| | - Haosen Fan
- College of Materials Science and Metallurgy Engineering, Guizhou University, Guiyang 550025, China; School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou, 510006, China.
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10
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Shao R, Dong Y, Wu Q, Shi H, Bao J, Tian F, Li T, Xu Z. SAXS unveils porous anodes for potassium-ion batteries: dynamic evolution of pore structures in Fe@Fe 2O 3/PCNFs composite nanofibers. Phys Chem Chem Phys 2024; 26:4885-4897. [PMID: 38258416 DOI: 10.1039/d3cp05994d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2024]
Abstract
The porous structure of composite nanofibers plays a key role in improving their electrochemical performance. However, the dynamic evolution of pore structures and their action during ion intercalation/extraction processes for negative electrodes are not clear. Herein, porous carbon composite nanofibers (Fe@Fe2O3/PCNFs) were prepared as negative electrode materials for potassium-ion batteries. Electrochemical test findings revealed that the composites had good electrochemical characteristics, and the porous structure endowed composite electrodes with pseudo-capacitive behaviors. After 1500 discharge/charge cycles at a current density of 1000 mA g-1, the specific capacity of the potassium-ion batteries was 144.8 mAh g-1. We innovatively used synchrotron small-angle X-ray scattering (SAXS) technique to systematically investigate the kinetic process of potassium formation in composites and showed that the kinetic process of potassium reaction in composites can be divided into four stages, and the pores with smaller average diameter distribution are more sensitive to changes in the reaction process. This work paves a new way to study the deposition kinetics of potassium in porous materials, which facilitates the design of porous structures and realizes the development of alkali metal ion-anode materials with high energies.
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Affiliation(s)
- Ruiqi Shao
- State Key Laboratory of Separation Membranes and Membrane Processes, School of Textile Science and Engineering, Tiangong University, Tianjin 300387, China.
| | - Yingjie Dong
- State Key Laboratory of Separation Membranes and Membrane Processes, School of Textile Science and Engineering, Tiangong University, Tianjin 300387, China.
| | - Qingqing Wu
- State Key Laboratory of Separation Membranes and Membrane Processes, School of Textile Science and Engineering, Tiangong University, Tianjin 300387, China.
| | - Haiting Shi
- State Key Laboratory of Separation Membranes and Membrane Processes, School of Textile Science and Engineering, Tiangong University, Tianjin 300387, China.
| | - Jinxi Bao
- State Key Laboratory of Separation Membranes and Membrane Processes, School of Textile Science and Engineering, Tiangong University, Tianjin 300387, China.
| | - Feng Tian
- Shanghai Synchrotron Radiation Facility, Zhangjiang Lab, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201204, China
| | - Tianyu Li
- State Key Laboratory of Separation Membranes and Membrane Processes, School of Textile Science and Engineering, Tiangong University, Tianjin 300387, China.
| | - Zhiwei Xu
- State Key Laboratory of Separation Membranes and Membrane Processes, School of Textile Science and Engineering, Tiangong University, Tianjin 300387, China.
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11
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Sun R, Dong S, Guo X, Xia P, Lu S, Zhang Y, Fan H. Construction of 2D sandwich-like Na 2V 6O 16·3H 2O@MXene heterostructure for advanced aqueous zinc ion batteries. J Colloid Interface Sci 2024; 655:226-233. [PMID: 37944370 DOI: 10.1016/j.jcis.2023.11.020] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Revised: 10/17/2023] [Accepted: 11/03/2023] [Indexed: 11/12/2023]
Abstract
Aqueous zinc ion batteries (AZIBs) have attained enormous attention in the last few years. The cathode materials of aqueous zinc ion batteries play a vital effect in their electrochemical and battery properties. In this manuscript, Sandwich-like MXene@Na2V6O16·3H2O (NVO@MXene) heterostructure was successfully prepared by the combination and cooperation of the layer lattice structure of Na2V6O16·3H2O and the high conductivity of MXene. When used as the cathode material for AZIBs, NVO@MXene demonstrates preeminent rate capability and excellent reversible capacity of 175 mAh/g after 3000 cycles at 5 A/g with a retention rate of 88.9 % of initial discharge capacity. The outstanding battery performance can be attributed to the MXene layers with high conductivity for accelerating the ion diffusion rate and reducing the agglomeration of Na2V6O16·3H2O nanowires during the (dis)charge process. Meanwhile, the stable layered structure of Na16V6O6·3H2O with wide interlamellar spacing (d = 7.9 Å) is also favorable for the s fast intercalation/deintercalation of Zn2+. Finally, ex-situ X-ray diffraction and X-ray photoelectron spectroscopy were applied to study and reveal the energy storage mechanism of this novel material for aqueous zinc ion batteries.
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Affiliation(s)
- Rui Sun
- College of Materials Science and Metallurgy Engineering, Guizhou University, Guiyang 550025, China
| | - Siyang Dong
- College of Materials Science and Metallurgy Engineering, Guizhou University, Guiyang 550025, China
| | - Xincheng Guo
- College of Materials Science and Metallurgy Engineering, Guizhou University, Guiyang 550025, China
| | - Peng Xia
- College of Materials Science and Metallurgy Engineering, Guizhou University, Guiyang 550025, China
| | - Shengjun Lu
- College of Materials Science and Metallurgy Engineering, Guizhou University, Guiyang 550025, China.
| | - Yufei Zhang
- College of Materials Science and Metallurgy Engineering, Guizhou University, Guiyang 550025, China.
| | - Haosen Fan
- College of Materials Science and Metallurgy Engineering, Guizhou University, Guiyang 550025, China; School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, China.
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12
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Xiong J, Liu X, Xia P, Guo X, Lu S, Lei H, Zhang Y, Fan H. Modified separators boost polysulfides adsorption-catalysis in lithium-sulfur batteries from Ni@Co hetero-nanocrystals into CNT-porous carbon dual frameworks. J Colloid Interface Sci 2023; 652:1417-1426. [PMID: 37659310 DOI: 10.1016/j.jcis.2023.08.185] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Revised: 08/16/2023] [Accepted: 08/28/2023] [Indexed: 09/04/2023]
Abstract
In this manuscript, nickel/cobalt bimetallic nanocrystals confining into three-dimensional interpenetrating dual-carbon conductive structure (NiCo@C/CNTs) were successfully manufactured by annealing its core-shell structure (Ni-ZIF-67@ZIF-8) precursor under the high temperature. The results presented that the bimetallic nickel and cobalt nanocrystals with superior catalytic activity could quickly convert solid Li2S/Li2S2into soluble LiPSs and effectively decrease the energy barrier. While the hierarchical CNT-porous carbon dual frameworks can provide quick electron/ion transport because of their large specific surface area and the exposure of enough active sites. When used as the separator modifier for lithium sulfur batteries, the battery properties were significantly improved with high specific capacity, outstanding rate capability, and long-term cycle stability. Specifically, its initial specific capacity can achieve to 1038.51 mAh g-1 at 0.5C. At the high rate of 3C, it still delivers satisfactory discharge capacity of 555 mAhg-1 and the capacity decay rate is only 0.065% per cycle after 1000 cycles at 1C. Furthermore, even exposed to heavy sulfur loading (3.61 mg/cm2), they still maintain promising cycle stability. Therefore, such kinds of MOFs derivative with powerful chemical immobilization and catalytic conversion for polysulfides provides a novel guidance for the modification separator and the potential application in the field of high-performance Li-S batteries.
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Affiliation(s)
- Jing Xiong
- College of Materials Science and Metallurgy Engineering, Guizhou University, Guiyang 550025, China
| | - Xinyun Liu
- College of Materials Science and Metallurgy Engineering, Guizhou University, Guiyang 550025, China
| | - Peng Xia
- College of Materials Science and Metallurgy Engineering, Guizhou University, Guiyang 550025, China
| | - Xincheng Guo
- College of Materials Science and Metallurgy Engineering, Guizhou University, Guiyang 550025, China
| | - Shengjun Lu
- College of Materials Science and Metallurgy Engineering, Guizhou University, Guiyang 550025, China
| | - Hua Lei
- College of Materials Science and Metallurgy Engineering, Guizhou University, Guiyang 550025, China.
| | - Yufei Zhang
- College of Materials Science and Metallurgy Engineering, Guizhou University, Guiyang 550025, China.
| | - Haosen Fan
- College of Materials Science and Metallurgy Engineering, Guizhou University, Guiyang 550025, China.
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13
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Wang M, Qin B, Xu F, Yang W, Liu Z, Zhang Y, Fan H. Hetero-structural and hetero-interfacial engineering of MXene@Bi 2S 3/Mo 7S 8 hybrid for advanced sodium/potassium-ion batteries. J Colloid Interface Sci 2023; 650:446-455. [PMID: 37418895 DOI: 10.1016/j.jcis.2023.07.007] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Revised: 06/25/2023] [Accepted: 07/02/2023] [Indexed: 07/09/2023]
Abstract
Herein, heterogeneous bimetallic sulfides Bi2S3/Mo7S8 nanoparticles anchored on MXene (Ti3C2Tx) nanosheets (MXene@Bi2S3/Mo7S8) were prepared through a solvothermal process and subsequent chemical vapor deposition process. Benefiting from the heterogeneous structure between Bi2S3 and Mo7S8 and the high conductivity of the Ti3C2Tx nanosheets, the Na+ diffusion barrier and charge transfer resistance of this electrode are effectively decreased. Simultaneously, the hierarchical architectures of Bi2S3/Mo7S8 and Ti3C2Tx not only effectively inhibit the re-stacking of MXene and the agglomeration of bimetallic sulfides nanoparticles, but also dramatically relieve the volume expansion during the periodic charge/discharge processes. As a result, the MXene@Bi2S3/Mo7S8 heterostructure demonstrated remarkable rate capability (474.9 mAh/g at 5.0 A/g) and outstanding cycling stability (427.3 mAh/g after 1400 cycles at 1.0 A/g) for sodium ion battery. The Na+ storage mechanism and the multiple-step phase transition in the heterostructures are further clarified by the ex-situ XRD and XPS characterizations. This study paves a new way to design and exploit conversion/alloying type anodes of sodium ion batteries with hierarchical heterogeneous architecture and high-performance electrochemical properties.
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Affiliation(s)
- Mengqi Wang
- School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, China
| | - Binyang Qin
- School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, China
| | - Feng Xu
- School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, China; College of Materials Science and Metallurgy Engineering, Guizhou University, Guiyang 550025, China
| | - Wei Yang
- School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, China
| | - Zhiting Liu
- School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, China
| | - Yufei Zhang
- School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, China; College of Materials Science and Metallurgy Engineering, Guizhou University, Guiyang 550025, China.
| | - Haosen Fan
- School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, China; College of Materials Science and Metallurgy Engineering, Guizhou University, Guiyang 550025, China.
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14
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Wan P, Dong S, Xiong J, Jin X, Lu S, Zhang Y, Fan H. Synergistic catalytic conversion and chemisorption of polysulfides from Fe/Fe 3C/FeN 0.0324 nanocubes modified separator for advanced Li-S batteries. J Colloid Interface Sci 2023; 650:582-592. [PMID: 37429165 DOI: 10.1016/j.jcis.2023.07.022] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2023] [Revised: 07/03/2023] [Accepted: 07/05/2023] [Indexed: 07/12/2023]
Abstract
Lithium sulfur batteries (LSBs) have been considered as one of the most promising options for next generation high-performance batteries. However, the heavy shuttle effect and inferior redox conversion during the charge/discharge processes of the batteries have greatly hindered their further applications. In this study, to address these disadvantages of LSBs, Fe/Fe3C/FeN0.0324 heterostructured nanocubes were designed and prepared through high temperature carbonization process using Prussian blue precursor. Then the Fe/Fe3C/FeN0.0324 nanocubes were used to modify the commercial polypropylene (PP) separator, which can greatly catalyze the redox transformation of polysulfides and provide sufficient active sites for chemisorption. As result, the modified separator endowed LSBs with excellent rate capacity and cycle stability, delivering a high-capacity of 1025 mAh/g at 0.5 C with nearly 100% coulombic efficiency. It also displayed a superb cycling performance with a per-cycle capacity attenuation rate of 0.09% after 300 cycles. When the current density increased to 1 C with the S loading of 1.73 mg cm-2, Fe/Fe3C/FeN0.0324-PP separator presented a satisfactory capacity decay rate of 0.05% per cycle after 1000 cycles. Besides, it also presented outstanding electrochemical performance even at high sulfur loading of 4.5 mg cm-2. This work has provided a new avenue for the design of nanomaterials with synergistic effect of catalytic conversion and chemisorption of polysulfides for the promotion of high-performance Li-S batteries.
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Affiliation(s)
- Pengfei Wan
- College of Materials Science and Metallurgy Engineering, Guizhou University, Guiyang 550025, China
| | - Siyang Dong
- College of Materials Science and Metallurgy Engineering, Guizhou University, Guiyang 550025, China
| | - Jing Xiong
- College of Materials Science and Metallurgy Engineering, Guizhou University, Guiyang 550025, China
| | - Xuanyang Jin
- College of Materials Science and Metallurgy Engineering, Guizhou University, Guiyang 550025, China
| | - Shengjun Lu
- College of Materials Science and Metallurgy Engineering, Guizhou University, Guiyang 550025, China.
| | - Yufei Zhang
- College of Materials Science and Metallurgy Engineering, Guizhou University, Guiyang 550025, China.
| | - Haosen Fan
- College of Materials Science and Metallurgy Engineering, Guizhou University, Guiyang 550025, China; School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, China.
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15
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Li Y, Wu S, Liu C, Liu Z, Yang W, Zhang Y, Fan H. Topochemical and phase transformation induced Co 9S 8/NC nanosheets for high-performance sodium-ion batteries. Dalton Trans 2023; 52:16519-16524. [PMID: 37877818 DOI: 10.1039/d3dt02449k] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2023]
Abstract
In this paper, a cobalt-based sulfide nanosheet structure (Co9S8/NC) was successfully synthesized by topochemical and phase transformation processes from a dodecahedral cobalt-based imidazole skeleton (ZIF-67) as a self-template. The 2D sheet structure facilitates full contact of electrode materials with the electrolyte and shortens the diffusion distance for electrons and ions. In addition, the nitrogen-doped carbon framework derived from ZIF-67 promotes electron transfer and provides a reliable skeleton to buffer volume expansion during discharging and charging. Finally, Co9S8/NC exhibits excellent rate capability and stable cycling performance for the anode of a sodium ion battery, delivering a specific capacity remaining at 530 mA h g-1 after 130 cycles at a current density of 1 A g-1.
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Affiliation(s)
- Yining Li
- School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, China.
| | - Shimei Wu
- School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, China.
| | - Chilin Liu
- School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, China.
| | - Zhiting Liu
- School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, China.
| | - Wei Yang
- School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, China.
| | - Yufei Zhang
- School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, China.
| | - Haosen Fan
- School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, China.
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16
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Wang H, Chen L, Xu F, Zhang Y, Fan H. ZnSe@NPSC core-shell nanorods for super sodium ion storage induced from an organic polymer derived N, P, S tri-doped carbon framework. Chem Commun (Camb) 2023; 59:10757-10760. [PMID: 37585187 DOI: 10.1039/d3cc02966b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/17/2023]
Abstract
In this work, core-shell structured ZnSe@NPSC nanorods were prepared with a N, P, S hetero-doped carbon shell. The design of the core-shell structure is conducive to facilitating the transport of electrons and buffering the volume expansion during charge/discharge processes, which is favourable for improving the sodium ion storage properties of ZnSe@NPSC. Therefore, it can deliver capacities of 376.67 mA h g-1 after 150 cycles at 0.5 A g-1 and 359.1 mA h g-1 after cycling for 350 cycles at 1.0 A g-1, respectively.
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Affiliation(s)
- Haibin Wang
- College of Civil Aviation Safety Engineering, Civil Aviation Flight University of China, Guanghan, China
| | - Lantao Chen
- College of Civil Aviation Safety Engineering, Civil Aviation Flight University of China, Guanghan, China
- School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, China.
| | - Feng Xu
- School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, China.
| | - Yufei Zhang
- School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, China.
| | - Haosen Fan
- School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, China.
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17
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Chen J, Yang Y, Yu S, Zhang Y, Hou J, Yu N, Fang B. MOF-Derived Nitrogen-Doped Porous Carbon Polyhedrons/Carbon Nanotubes Nanocomposite for High-Performance Lithium-Sulfur Batteries. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:2416. [PMID: 37686923 PMCID: PMC10490064 DOI: 10.3390/nano13172416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Revised: 08/13/2023] [Accepted: 08/21/2023] [Indexed: 09/10/2023]
Abstract
Nanocomposites that combine porous materials and a continuous conductive skeleton as a sulfur host can improve the performance of lithium-sulfur (Li-S) batteries. Herein, carbon nanotubes (CNTs) anchoring small-size (~40 nm) N-doped porous carbon polyhedrons (S-NCPs/CNTs) are designed and synthesized via annealing the precursor of zeolitic imidazolate framework-8 grown in situ on CNTs (ZIF-8/CNTs). In the nanocomposite, the S-NCPs serve as an efficient host for immobilizing polysulfides through physical adsorption and chemical bonding, while the interleaved CNT networks offer an efficient charge transport environment. Moreover, the S-NCP/CNT composite with great features of a large specific surface area, high pore volume, and short electronic/ion diffusion depth not only demonstrates a high trapping capacity for soluble lithium polysulfides but also offers an efficient charge/mass transport environment, and an effective buffering of volume changes during charge and discharge. As a result, the Li-S batteries based on a S/S-NCP/CNT cathode deliver a high initial capacity of 1213.8 mAh g-1 at a current rate of 0.2 C and a substantial capacity of 1114.2 mAh g-1 after 100 cycles, corresponding to a high-capacity retention of 91.7%. This approach provides a practical research direction for the design of MOF-derived carbon materials in the application of high-performance Li-S batteries.
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Affiliation(s)
- Jun Chen
- College of Electrical Engineering and Control Science, Nanjing Tech University, Nanjing 211816, China
| | - Yuanjiang Yang
- School of Energy Sciences and Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Sheng Yu
- Department of Chemistry, Washington State University, Pullman, WA 99164, USA
| | - Yi Zhang
- College of Electrical Engineering and Control Science, Nanjing Tech University, Nanjing 211816, China
- School of Energy Sciences and Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Jiwei Hou
- College of Electrical Engineering and Control Science, Nanjing Tech University, Nanjing 211816, China
- School of Energy Sciences and Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Nengfei Yu
- College of Electrical Engineering and Control Science, Nanjing Tech University, Nanjing 211816, China
- School of Energy Sciences and Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Baizeng Fang
- Department of Energy Storage Science and Technology, University of Science and Technology Beijing, Beijing 100083, China;
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