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Fang D, Huang S, Xu T, Sun P, Li XL, Lim YV, Yan D, Shang Y, Su BJ, Juang JY, Ge Q, Yang HY. Low-Coordinated Zn-N 2 Sites as Bidirectional Atomic Catalysis for Room-Temperature Na-S Batteries. ACS Appl Mater Interfaces 2023. [PMID: 37226049 DOI: 10.1021/acsami.3c02599] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
The rational design of advanced catalysts for sodium-sulfur (Na-S) batteries is important but remains challenging due to the limited understanding of sulfur catalytic mechanisms. Here, we propose an efficient sulfur host consisting of atomic low-coordinated Zn-N2 sites dispersed on N-rich microporous graphene (Zn-N2@NG), which realizes state-of-the-art sodium-storage performance with a high sulfur content of 66 wt %, high-rate capability (467 mA h g-1 at 5 A g-1), and long cycling stability for 6500 cycles with an ultralow capacity decay rate of 0.0062% per cycle. Ex situ methods combined with theoretical calculations demonstrate the superior bidirectional catalysis of Zn-N2 sites on sulfur conversion (S8 ↔ Na2S). Furthermore, in situ transmission electron microscopy was applied to visualize the microscopic S redox evolution under the catalysis of Zn-N2 sites without liquid electrolytes. During the sodiation process, both surface S nanoparticles and S molecules in the mircopores of Zn-N2@NG quickly convert into Na2S nanograins. During the following desodiation process, only a small part of the above Na2S can be oxidized into Na2Sx. These results reveal that, without liquid electrolytes, Na2S is difficult to be decomposed even with the assistance of Zn-N2 sites. This conclusion emphasizes the critical role of liquid electrolytes in the catalytic oxidation of Na2S, which was usually ignored by previous works.
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Affiliation(s)
- Daliang Fang
- Pillar of Engineering Product Development, Singapore University of Technology and Design, 8 Somapah Road, Singapore 487372, Singapore
| | - Shaozhuan Huang
- Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education, South-Central University for Nationalities, Wuhan, Hubei 430074, China
| | - Tingting Xu
- Key Laboratory of Material Physics, Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Zhengzhou 450052, China
| | - Pan Sun
- NSF'S ChemMatCARS, University of Chicago, Chicago, Illinois 60637, United States
| | - Xue Liang Li
- Pillar of Engineering Product Development, Singapore University of Technology and Design, 8 Somapah Road, Singapore 487372, Singapore
| | - Yew Von Lim
- Pillar of Engineering Product Development, Singapore University of Technology and Design, 8 Somapah Road, Singapore 487372, Singapore
| | - Dong Yan
- International Joint Laboratory of New Energy Materials and Devices of Henan Province, School of Physics & Electronics, Henan University, Kaifeng 475004, China
| | - Yang Shang
- Institute of Advanced Battery Materials and Devices, Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing 100124, China
| | - Bing-Jian Su
- Department of Electrophysics, National Chiao Tung University, 1001 Ta-Hsueh Road, Hsinchu 30010, Taiwan, ROC
| | - Jenh-Yih Juang
- Department of Electrophysics, National Chiao Tung University, 1001 Ta-Hsueh Road, Hsinchu 30010, Taiwan, ROC
| | - Qi Ge
- Shenzhen Key Laboratory of Biomimetic Robotics and Intelligent Systems, Department of Mechanical and Energy Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Hui Ying Yang
- Pillar of Engineering Product Development, Singapore University of Technology and Design, 8 Somapah Road, Singapore 487372, Singapore
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Yin C, Li Z, Zhao D, Yang J, Zhang Y, Du Y, Wang Y. Azo-Branched Covalent Organic Framework Thin Films as Active Separators for Superior Sodium-Sulfur Batteries. ACS Nano 2022; 16:14178-14187. [PMID: 35994525 DOI: 10.1021/acsnano.2c04273] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Sodium-Sulfur (Na-S) batteries are outstanding for their ultrahigh capacity, energy density, and low cost, but they suffer from rapid cell capacity decay and short lifespan because of serious polysulfide shuttle and sluggish redox kinetics. Herein, we synthesize thin films of covalent organic frameworks (COFs) with azobenzene side groups branched to the pore walls. The azobenzene branches deliver dual functions: (1) narrow the pore size to the sub-nanometer scale thus inhibiting the polysulfide shuttle effect and (2) act as ion-hopping sites thus promoting the Na+ migration. Consequently, the Na-S battery using the COF thin film as the separator exhibits a high capacity of 1295 mA h g-1 at 0.2 C and an extremely low attenuation rate of 0.036% per cycle over 1000 cycles at 1 C. This work highlights the importance of separator design in upgrading Na-S batteries and demonstrates the possibility of functionalizable framework materials in developing high-performance energy storage systems.
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Affiliation(s)
- Congcong Yin
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 211816, Jiangsu, P. R. China
| | - Zhen Li
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, Jiangsu, P. R. China
| | - Decheng Zhao
- School of Energy Science and Engineering, Nanjing Tech University, Nanjing 211816, Jiangsu, P. R. China
| | - Jingying Yang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 211816, Jiangsu, P. R. China
| | - Yi Zhang
- School of Energy Science and Engineering, Nanjing Tech University, Nanjing 211816, Jiangsu, P. R. China
| | - Ya Du
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, Jiangsu, P. R. China
| | - Yong Wang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 211816, Jiangsu, P. R. China
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3
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Nahian MS, Jayan R, Kaewmaraya T, Hussain T, Islam MM. Elucidating Synergistic Mechanisms of Adsorption and Electrocatalysis of Polysulfides on Double-Transition Metal MXenes for Na-S Batteries. ACS Appl Mater Interfaces 2022; 14:10298-10307. [PMID: 35167253 DOI: 10.1021/acsami.1c22511] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Multiple unfavorable features, such as poor electronic conductivity of sulfur cathodes, the dissolution and shuttling of sodium polysulfides (Na2Sn) in electrolytes, and the slower kinetics for the decomposition of solid Na2S, make sodium-sulfur batteries (NaSBs) impractical. To overcome these obstacles, novel double-transition metal (DTM) MXenes, Mo2TiC2T2, (T = O and S) are studied as an anchoring material (AM) to immobilize higher-order polysulfides and to expedite the otherwise slower kinetics of insoluble short-chain polysulfides. Density functional theory (DFT) calculations are carried out to justify and compare the effectiveness of Mo2TiC2S2 and Mo2TiC2O2 as AMs by analyzing their interactions with S8/Na2Sn (n = 1, 2, 4, 6, and 8). Mo2TiC2S2 provides moderate adsorption strength compared to Mo2TiC2O2, therefore, it is expected to effectively inhibit Na2Sn dissolution and shuttling without causing decomposition of Na2Sn. The calculated Gibbs free energies of the rate-determining step for sulfur reduction reactions (SRR) are found to be significantly lower (0.791 eV for S and 0.628 eV for O functionalization) than that in vacuum (1.442 eV), suggesting that the SRR is more thermodynamically favorable on Mo2TiC2T2 during discharge. Additionally, both Mo2TiC2S2 and Mo2TiC2O2 demonstrated effective electrocatalytic activity for the decomposition of Na2S, with a substantial reduction in the energy barrier to 1.59 eV for Mo2TiC2S2 and 1.67 eV for Mo2TiC2O2. While Mo2TiC2O2 had superior binding properties, structural distortion is observed in Na2Sn, which may adversely affect cyclability. On the other hand, because of its moderate binding energy, enhanced electronic conductivity, and significantly faster oxidative decomposition kinetics of polysulfides, Mo2TiC2S2 can be considered as an effective AM for suppressing the shuttle effect and improving the performance of NaSBs.
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Affiliation(s)
- Md Shahriar Nahian
- Department of Mechanical Engineering, Wayne State University, Detroit, Michigan 48202, United States
| | - Rahul Jayan
- Department of Mechanical Engineering, Wayne State University, Detroit, Michigan 48202, United States
| | - Thanayut Kaewmaraya
- Department of Physics, Khon Kaen University, Khon Kaen 40002, Thailand
- Institute of Nanomaterials Research and Innovation for Energy (IN-RIE), NANOTEC-KKU RNN on Nanomaterials Research and Innovation for Energy, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Tanveer Hussain
- School of Science and Technology, University of New England, Armidale, New South Wales 2351, Australia
| | - Md Mahbubul Islam
- Department of Mechanical Engineering, Wayne State University, Detroit, Michigan 48202, United States
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Lim CYJ, Eng AYS, Handoko AD, Horia R, Seh ZW. Sulfurized Cyclopentadienyl Nanocomposites for Shuttle-Free Room-Temperature Sodium-Sulfur Batteries. Nano Lett 2021; 21:10538-10546. [PMID: 34889614 DOI: 10.1021/acs.nanolett.1c04182] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
A major challenge hindering the practical adoption of room-temperature sodium-sulfur batteries (NaSBs) is polysulfide dissolution and shuttling, which results in irreversible capacity decay and low Coulombic efficiencies. In this work, we demonstrate for the first time NaSBs using a ferrocene-derived amorphous sulfurized cyclopentadienyl composite (SCC) cathode. Polysulfide dissolution is eliminated via covalent bonding between the insoluble short-chain sulfur species and carbon backbone. Control experiments with a metal-free composite analogue determined that the iron species in the SCC does not have a significant role in polysulfide anchoring. Instead, the superior electrochemical performance is attributed to sulfur covalently bonded to carbon and the uniform nanoparticulate morphology of the SCC composite. In the carbonate-based electrolyte, a discharge capacity of 795 mAh g(S)-1 was achieved during early cycling at 0.2 C, and high Coulombic efficiencies close to 100% were maintained with capacity retention of 532 and 442 mAh g(S)-1 after 100 and 200 cycles, respectively.
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Affiliation(s)
- Carina Yi Jing Lim
- Institute of Materials Research and Engineering, Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis, 138634, Singapore
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore
| | - Alex Yong Sheng Eng
- Institute of Materials Research and Engineering, Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis, 138634, Singapore
| | - Albertus D Handoko
- Institute of Materials Research and Engineering, Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis, 138634, Singapore
| | - Raymond Horia
- Institute of Materials Research and Engineering, Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis, 138634, Singapore
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore
| | - Zhi Wei Seh
- Institute of Materials Research and Engineering, Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis, 138634, Singapore
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5
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Jayan R, Islam MM. Mechanistic Insights into Interactions of Polysulfides at VS 2 Interfaces in Na-S Batteries: A DFT Study. ACS Appl Mater Interfaces 2021; 13:35848-35855. [PMID: 34284574 DOI: 10.1021/acsami.1c10868] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Room temperature sodium-sulfur (Na-S) batteries, because of their high theoretical energy density and low cost, are considered as a promising candidate for next-generation energy storage devices. However, the practical utilization of the Na-S batteries is greatly hindered by various deleterious factors such as dissolution of sodium polysulfides (Na2Sn) into the electrolyte commonly termed as "shuttle effect," sluggish decomposition of solid Na2S, and poor electronic conductivity of sulfur. To overcome the challenges, we introduced single-layer vanadium disulfide (VS2) as an anchoring material (AM) to immobilize higher-order polysulfides from the dissolution and also to accelerate the otherwise sluggish kinetics of insoluble short-chain polysulfides. We employ density functional theory (DFT) calculations to elucidate the Na2Sn interactions at the VS2 interfaces. We show that the adsorption strengths of various Na2Sn species on the VS2 basal plane are adequate (1.21-4.3 eV) to suppress the shuttle effect, and the structure of Na2Sn are maintained without any decomposition, which is necessary to mitigate capacity fading. The calculated projected density of states (PDOS) reveals that the metallic character of the pristine VS2 is retained even after Na2Sn adsorption. The calculated Gibbs free energy of each elementary sulfur reduction reaction indicates a significant decrement in the free energy barrier due to the catalytic activity of the VS2 surface. Furthermore, VS2 is found to be an excellent catalyst to significantly reduce the oxidative decomposition barrier of Na2S, which facilitates accelerated electrode kinetics and higher utilization of sulfur. Overall, VS2 with strong adsorption behavior, enhanced electronic conductivity, and improved oxidative decomposition kinetics of polysulfides can be considered as an effective AM to prevent the shuttle effect and to improve the performance of Na-S batteries.
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Affiliation(s)
- Rahul Jayan
- Department of Mechanical Engineering, Wayne State University, Detroit, Michigan 48202, United States
| | - Md Mahbubul Islam
- Department of Mechanical Engineering, Wayne State University, Detroit, Michigan 48202, United States
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Eng AYS, Wang Y, Nguyen DT, Tee SY, Lim CYJ, Tan XY, Ng MF, Xu J, Seh ZW. Tunable Nitrogen-Doping of Sulfur Host Nanostructures for Stable and Shuttle-Free Room-Temperature Sodium-Sulfur Batteries. Nano Lett 2021; 21:5401-5408. [PMID: 34125537 DOI: 10.1021/acs.nanolett.1c01763] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Room-temperature sodium-sulfur batteries have potential in stationary applications, but challenges such as loss of active sulfur and low electrical conductivity must be solved. Nitrogen-doped nanocarbon host cathodes have been employed in metal-sulfur batteries: polar interactions mitigate the loss of sulfur, while the conductive nanostructure addresses the low conductivity. Nevertheless, these two properties run contrary to each other as greater nitrogen-doping of nanocarbon hosts is associated with lower conductivity. Herein, we investigate the polarity-conductivity dilemma to determine which of these properties have the stronger influence on cycling performance. Lower carbonization temperatures produce more pyridinic nitrogen and pyrrolic nitrogen, which from density functional theory calculations preferentially bind discharge products (Na2S and short-chain polysulfides). Despite its lower conductivity, the highly doped composite showed better Coulombic efficiency and stability, retaining a high capacity of 980 mAh g(S)-1 after 800 cycles. Our findings represent a paradigm shift where nitrogen-doping should be prioritized in designing shuttle-free, long-life sodium-sulfur batteries.
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Affiliation(s)
- Alex Yong Sheng Eng
- Institute of Materials Research and Engineering, Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis, 138634, Singapore
| | - Yong Wang
- Institute for Energy Research, Jiangsu University, Zhenjiang, Jiangsu 212013, P. R. China
| | - Dan-Thien Nguyen
- Institute of Materials Research and Engineering, Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis, 138634, Singapore
| | - Si Yin Tee
- Institute of Materials Research and Engineering, Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis, 138634, Singapore
| | - Carina Yi Jing Lim
- Institute of Materials Research and Engineering, Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis, 138634, Singapore
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore
| | - Xian Yi Tan
- Institute of Materials Research and Engineering, Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis, 138634, Singapore
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore
| | - Man-Fai Ng
- Institute of High Performance Computing, Agency for Science, Technology and Research (A*STAR), 1 Fusionopolis Way, Connexis, 138632, Singapore
| | - Jianwei Xu
- Institute of Materials Research and Engineering, Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis, 138634, Singapore
| | - Zhi Wei Seh
- Institute of Materials Research and Engineering, Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis, 138634, Singapore
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Ma Q, Zhong W, Du G, Qi Y, Bao SJ, Xu M, Li C. Multi-step Controllable Catalysis Method for the Defense of Sodium Polysulfide Dissolution in Room-Temperature Na-S Batteries. ACS Appl Mater Interfaces 2021; 13:11852-11860. [PMID: 33656849 DOI: 10.1021/acsami.0c21267] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Room-temperature (RT) sodium-sulfur batteries hold great promise for the development of efficient, low-cost, and environmentally friendly energy storage systems. Nevertheless, the dissolution of long-chain polysulfides is a huge obstacle. In this work, a composite cathode which integrates Ni/Co bimetal nanoparticles as the catalyst and carbon spheres with abundant channels as the host is prepared for RT Na-S batteries. Moreover, a valuable strategy to reduce the dissolution of polysulfides by accurately regulating the two-step reaction kinetics of polysulfide transformation (from Na2S to long-chain polysulfides and then from polysulfides to sulfur) is presented. Through adjusting the ratio of Ni and Co, the optimal cathode with a Ni/Co ratio of 1:2 can retard the first conversion of Na2S to polysulfides and simultaneously accelerate the subsequent transformation of polysulfides to sulfur. In this case, the soluble polysulfides can immediately transform to solid sulfur as soon as it appears, thus avoiding the shuttle of polysulfides. The galvanostatic intermittent titration method and in situ Raman are employed to supervise the transformation of polysulfides during the discharge/charge process. As a result, the composite shows excellent performance as the cathode of RT liquid/quasi-solid-state Na-S batteries in terms of specific capacities, rate capability, and cycle stability.
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Affiliation(s)
- Qianru Ma
- Institute for Clean Energy & Advanced Materials, Faculty of Materials and Energy, Southwest University, Chongqing 400715, PR China
| | - Wei Zhong
- Institute for Clean Energy & Advanced Materials, Faculty of Materials and Energy, Southwest University, Chongqing 400715, PR China
| | - Guangyuan Du
- Institute for Clean Energy & Advanced Materials, Faculty of Materials and Energy, Southwest University, Chongqing 400715, PR China
| | - Yuruo Qi
- Institute for Clean Energy & Advanced Materials, Faculty of Materials and Energy, Southwest University, Chongqing 400715, PR China
| | - Shu-Juan Bao
- Institute for Clean Energy & Advanced Materials, Faculty of Materials and Energy, Southwest University, Chongqing 400715, PR China
| | - Maowen Xu
- Institute for Clean Energy & Advanced Materials, Faculty of Materials and Energy, Southwest University, Chongqing 400715, PR China
| | - Changming Li
- Institute for Clean Energy & Advanced Materials, Faculty of Materials and Energy, Southwest University, Chongqing 400715, PR China
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8
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Zhang R, Esposito AM, Thornburg ES, Chen X, Zhang X, Philip MA, Magana A, Gewirth AA. Conversion of Co Nanoparticles to CoS in Metal-Organic Framework-Derived Porous Carbon during Cycling Facilitates Na 2S Reactivity in a Na-S Battery. ACS Appl Mater Interfaces 2020; 12:29285-29295. [PMID: 32490653 DOI: 10.1021/acsami.0c05370] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Room-temperature sodium-sulfur batteries have attracted wide interest due to their high energy density and high natural abundance. Polysulfide dissolution and irreversible Na2S conversion are challenges to achieving high battery performance. Herein, we utilize a metal-organic framework-derived Co-containing nitrogen-doped porous carbon (CoNC) as a catalytic sulfur cathode host. A concentrated sodium electrolyte based on sodium bis(fluorosulfonyl)imide, dimethoxyethane, and bis(2,2,2-trifluoroethyl) ether is used to mitigate polysulfide dissolution. We tune the amount of Co present in the CoNC carbon host by acid washing. Significant improvement in reversible sulfur conversion and capacity retention is observed with a higher Co content in CoNC, with 600 mAh g-1 and 77% capacity retention for CoNC and 261 mAh g-1 and 56% capacity retention for acid-washed CoNC at cycle 50 at 80 mAh g-1. Post-mortem X-ray photoelectron spectroscopy, transmission electron microscopy, and selected area electron diffraction suggest that CoS is formed during cycling in place of Co nanoparticles and CoN4 sites. Raman spectroscopy suggests that CoS exhibits a catalytic effect on the oxidation of Na2S. Our findings provide insights into understanding the role Co-based catalysts play in sulfur batteries.
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Affiliation(s)
- Ruixian Zhang
- Department of Chemistry, University of Illinois, Urbana, Illinois 61801, United States
| | - Anne Marie Esposito
- Department of Chemistry, University of Illinois, Urbana, Illinois 61801, United States
| | - Eric S Thornburg
- Department of Chemistry, University of Illinois, Urbana, Illinois 61801, United States
| | - Xinyi Chen
- Department of Chemistry, University of Illinois, Urbana, Illinois 61801, United States
| | - Xueyong Zhang
- Department of Chemistry, University of Illinois, Urbana, Illinois 61801, United States
| | - Maria A Philip
- Department of Chemistry, University of Illinois, Urbana, Illinois 61801, United States
| | - Alexis Magana
- Department of Chemistry, University of Illinois, Urbana, Illinois 61801, United States
| | - Andrew A Gewirth
- Department of Chemistry, University of Illinois, Urbana, Illinois 61801, United States
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Liu H, Pei W, Lai WH, Yan Z, Yang H, Lei Y, Wang YX, Gu Q, Zhou S, Chou S, Liu HK, Dou SX. Electrocatalyzing S Cathodes via Multisulfiphilic Sites for Superior Room-Temperature Sodium-Sulfur Batteries. ACS Nano 2020; 14:7259-7268. [PMID: 32433868 DOI: 10.1021/acsnano.0c02488] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Room-temperature sodium-sulfur (RT-Na/S) batteries hold great promise for sustainable and cost-effective applications. Nevertheless, it remains a great challenge to achieve high capacity and cycling stability due to the low activity of sulfur and the sluggish conversion kinetics between polysulfide intermediates and sodium sulfide. Herein, an electrocatalyzing S cathode is fabricated, which consists of porous core-shell structure and multisulfiphilic sites. The flexible carbon structure effectively buffers volume changes during cycling and provides enclosed spaces to store S8 with exceptional conductivity. Significantly, the multisulfiphilic sites (ZnS and CoS2) enhance catalysis toward multistep S conversion, which effectively suppresses long-chain polysulfides dissolution and improves the kinetics of short-chain polysulfides. Thus, the obtained S cathodes achieve an enhanced cycling performance (570 mAh g-1 at 0.2 A g-1 over 1000 cycles), decent rate capability (250 mAh g-1 at 1.0 A g-1 over 2000 cycles), and high energy density of 384 Wh kg-1 toward practical applications.
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Affiliation(s)
- Hanwen Liu
- Institute for Superconducting and Electronic Materials, Australian Institute of Innovative Materials, University of Wollongong, Innovation Campus, Squires Way, North Wollongong, New South Wales 2500, Australia
| | - Wei Pei
- Key Laboratory of Materials Modification by Laser, Ion and Electron Beams, Dalian University of Technology, Ministry of Education, Dalian 116024, China
| | - Wei-Hong Lai
- Institute for Superconducting and Electronic Materials, Australian Institute of Innovative Materials, University of Wollongong, Innovation Campus, Squires Way, North Wollongong, New South Wales 2500, Australia
| | - Zichao Yan
- Institute for Superconducting and Electronic Materials, Australian Institute of Innovative Materials, University of Wollongong, Innovation Campus, Squires Way, North Wollongong, New South Wales 2500, Australia
| | - Huiling Yang
- Institute for Superconducting and Electronic Materials, Australian Institute of Innovative Materials, University of Wollongong, Innovation Campus, Squires Way, North Wollongong, New South Wales 2500, Australia
| | - Yaojie Lei
- Institute for Superconducting and Electronic Materials, Australian Institute of Innovative Materials, University of Wollongong, Innovation Campus, Squires Way, North Wollongong, New South Wales 2500, Australia
| | - Yun-Xiao Wang
- Institute for Superconducting and Electronic Materials, Australian Institute of Innovative Materials, University of Wollongong, Innovation Campus, Squires Way, North Wollongong, New South Wales 2500, Australia
| | - Qinfen Gu
- Australian Synchrotron 800 Blackburn Road, Clayton, Victoria 3168, Australia
| | - Si Zhou
- Institute for Superconducting and Electronic Materials, Australian Institute of Innovative Materials, University of Wollongong, Innovation Campus, Squires Way, North Wollongong, New South Wales 2500, Australia
- Key Laboratory of Materials Modification by Laser, Ion and Electron Beams, Dalian University of Technology, Ministry of Education, Dalian 116024, China
| | - Shulei Chou
- Institute for Superconducting and Electronic Materials, Australian Institute of Innovative Materials, University of Wollongong, Innovation Campus, Squires Way, North Wollongong, New South Wales 2500, Australia
| | - Hua Kun Liu
- Institute for Superconducting and Electronic Materials, Australian Institute of Innovative Materials, University of Wollongong, Innovation Campus, Squires Way, North Wollongong, New South Wales 2500, Australia
| | - Shi Xue Dou
- Institute for Superconducting and Electronic Materials, Australian Institute of Innovative Materials, University of Wollongong, Innovation Campus, Squires Way, North Wollongong, New South Wales 2500, Australia
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Bao W, Shuck CE, Zhang W, Guo X, Gogotsi Y, Wang G. Boosting Performance of Na-S Batteries Using Sulfur-Doped Ti 3C 2T x MXene Nanosheets with a Strong Affinity to Sodium Polysulfides. ACS Nano 2019; 13:11500-11509. [PMID: 31532639 DOI: 10.1021/acsnano.9b04977] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Sodium-sulfur batteries using abundant elements offer an attractive alternative to currently used batteries, but they need better sulfur host materials to compete with lithium-ion batteries in capacity and cyclability. We report an in situ sulfur-doping strategy to functionalize MXene nanosheets by introducing heteroatomic sulfur into the MXene structure form the MAX phase precursor. By employing the vacuum freeze-drying method, a three-dimensional (3D) wrinkled MXene nanoarchitecture with the high specific surface area was prepared. The tailor-made wrinkled sulfur-doped MXene (S-Ti3C2Tx) nanosheets were applied as an electrode host material in room temperature sodium-sulfur batteries. The S-Ti3C2Tx matrix shows high polarity with sodium polysulfides, restricting the diffusion of sodium polysulfides. The MXene/sulfur electrode can achieve high areal sulfur loading up to 4.5 mg cm-2 as well as good electrochemical performance (reversible capacity of 577 mAh g-1 at 2 C after 500 cycles).
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Affiliation(s)
- Weizhai Bao
- Centre for Clean Energy Technology, Faculty of Science , University of Technology Sydney Broadway , Sydney , NSW 2007 , Australia
| | - Christopher E Shuck
- A.J. Drexel Nanomaterials Institute and Department of Materials Science and Engineering , Drexel University , Philadelphia , Pennsylvania 19104 , United States
| | - Wenxue Zhang
- School of Materials Science and Engineering , Chang'an University , Xi'an 710064 , China
| | - Xin Guo
- Centre for Clean Energy Technology, Faculty of Science , University of Technology Sydney Broadway , Sydney , NSW 2007 , Australia
| | - Yury Gogotsi
- A.J. Drexel Nanomaterials Institute and Department of Materials Science and Engineering , Drexel University , Philadelphia , Pennsylvania 19104 , United States
| | - Guoxiu Wang
- Centre for Clean Energy Technology, Faculty of Science , University of Technology Sydney Broadway , Sydney , NSW 2007 , Australia
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Ghosh A, Kumar A, Roy A, Panda MR, Kar M, MacFarlane DR, Mitra S. Three-Dimensionally Reinforced Freestanding Cathode for High-Energy Room-Temperature Sodium-Sulfur Batteries. ACS Appl Mater Interfaces 2019; 11:14101-14109. [PMID: 30919631 DOI: 10.1021/acsami.9b00203] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Room-temperature sodium-sulfur (RT Na-S) battery cathodes suffer from poor conductivity, rapid dissolution of intermediate products, and potentially destructive volume change during cycling. The optimal way to minimize these problems could be a construction of a nanocomposite cathode scaffold combining different components selected for their particular functions. Here, we have combined the excellent electronic conductivity of reduced graphene oxide, polysulfide adsorption ability of the ultrafine manganese oxide nanocrystals, rapid ion/electron dissemination efficiency of nanosized sulfur, and outstanding mechanical stiffness and good electrical conductivity of Na alginate/polyaniline hybrid binder in a single electrode heterostructure. At 0.2 A g-1, an RT Na-S battery containing the freestanding cathode delivers an initial specific cap acity of 631 mA h g-1. By delivering a nominal discharge voltage of 1.81 V, our Na-S batteries bestow a high specific energy of 737 W h kg-1 at the 2nd cycle and 660 W h kg-1 was retained after 50 cycles. The effect of the amount of electrolyte additive is also well demonstrated in this study. The electrode fabrication process provides a new approach to tailor the design and preparation of effective cathodes for the room-temperature sodium-sulfur batteries.
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Affiliation(s)
- Arnab Ghosh
- IITB-Monash Research Academy , Powai , Mumbai 400076 , India
- ARC Centre of Excellence for Electromaterials Science, School of Chemistry , Monash University , Clayton , Victoria 3800 , Australia
- Electrochemical Energy Laboratory, Department of Energy Science and Engineering , Indian Institute of Technology Bombay , Mumbai 400076 , India
| | - Ajit Kumar
- IITB-Monash Research Academy , Powai , Mumbai 400076 , India
- ARC Centre of Excellence for Electromaterials Science, School of Chemistry , Monash University , Clayton , Victoria 3800 , Australia
- Electrochemical Energy Laboratory, Department of Energy Science and Engineering , Indian Institute of Technology Bombay , Mumbai 400076 , India
| | - Amlan Roy
- Electrochemical Energy Laboratory, Department of Energy Science and Engineering , Indian Institute of Technology Bombay , Mumbai 400076 , India
| | - Manas Ranjan Panda
- Electrochemical Energy Laboratory, Department of Energy Science and Engineering , Indian Institute of Technology Bombay , Mumbai 400076 , India
| | - Mega Kar
- ARC Centre of Excellence for Electromaterials Science, School of Chemistry , Monash University , Clayton , Victoria 3800 , Australia
| | - Douglas R MacFarlane
- ARC Centre of Excellence for Electromaterials Science, School of Chemistry , Monash University , Clayton , Victoria 3800 , Australia
| | - Sagar Mitra
- Electrochemical Energy Laboratory, Department of Energy Science and Engineering , Indian Institute of Technology Bombay , Mumbai 400076 , India
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Hu L, Lu Y, Zhang T, Huang T, Zhu Y, Qian Y. Ultramicroporous Carbon through an Activation-Free Approach for Li-S and Na-S Batteries in Carbonate-Based Electrolyte. ACS Appl Mater Interfaces 2017; 9:13813-13818. [PMID: 28388027 DOI: 10.1021/acsami.7b01387] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
We report an activation-free approach for fabricating ultramicroporous carbon as an accommodation of sulfur molecules for Li-S and Na-S batteries applications in carbonate-based electrolyte. Because of the high specific surface area of 967 m2 g-1, as well as 51.8% of the pore volume is contributed by ultramicropore with pore size less than 0.7 nm, sulfur cathode exhibits superior electrochemical behavior in carbonate-based electrolyte with a capacity of 507.9 mA h g-1 after 500 cycles at 2 C in Li-S batteries and 392 mA h g-1 after 200 cycles at 1 C in Na-S batteries, respectively.
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Affiliation(s)
| | | | | | | | | | - Yitai Qian
- School of Chemistry and Chemical Engineering, Shandong University , Jinan 250100, P. R. China
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