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Deng R, Wang Z, Tan S, Lu G, Huang X, Qu B, Huang G, Xu C, Zhou X, Wang J, Pan F. Organic Molecular Intercalation Enabled Anionic Redox Chemistry with Fast Kinetics for High Performance Magnesium Storage. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2308329. [PMID: 37949813 DOI: 10.1002/smll.202308329] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Revised: 10/15/2023] [Indexed: 11/12/2023]
Abstract
Rechargeable magnesium-ion batteries possess desirable characteristics in large-scale energy storage applications. However, severe polarization, sluggish kinetics and structural instability caused by high charge density Mg2+ hinder the development of high-performance cathode materials. Herein, the anionic redox chemistry in VS4 is successfully activated by inducing cations reduction and introducing anionic vacancies via polyacrylonitrile (PAN) intercalation. Increased interlayer spacing and structural vacancies can promote the electrolyte ions migration and accelerate the reaction kinetics. Thanks to this "three birds with one stone" strategy, PAN intercalated VS4 exhibits an outstanding electrochemical performance: high discharge specific capacity of 187.2 mAh g-1 at 200 mA g-1 after stabilization and a long lifespan of 5000 cycles at 2 A g-1 are achieved, outperforming other reported VS4-based materials to date for magnesium storage under the APC electrolyte. Theoretical calculations confirm that the intercalated PAN can indeed induce cations reduction and generate anionic vacancies by promoting electron transfer, which can accelerate the electrochemical reaction kinetics and activate the anionic redox chemistry, thus improving the magnesium storage performance. This approach of organic molecular intercalation represents a promising guideline for electrode material design on the development of advanced multivalent-ion batteries.
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Affiliation(s)
- Rongrui Deng
- National Engineering Research Center for Magnesium Alloys, College of Materials Science and Engineering, Chongqing University, Chongqing, 400044, P. R. China
| | - Zhongting Wang
- National Engineering Research Center for Magnesium Alloys, College of Materials Science and Engineering, Chongqing University, Chongqing, 400044, P. R. China
| | - Shuangshuang Tan
- National Engineering Research Center for Magnesium Alloys, College of Materials Science and Engineering, Chongqing University, Chongqing, 400044, P. R. China
| | - Guanjie Lu
- College of Aerospace Engineering, Chongqing University, Chongqing, 400044, P. R. China
| | - Xueting Huang
- National Engineering Research Center for Magnesium Alloys, College of Materials Science and Engineering, Chongqing University, Chongqing, 400044, P. R. China
| | - Baihua Qu
- National Engineering Research Center for Magnesium Alloys, College of Materials Science and Engineering, Chongqing University, Chongqing, 400044, P. R. China
- Chongqing Institute of New Energy Storage Materials and Equipment, Chongqing, 400044, P. R. China
| | - Guangsheng Huang
- National Engineering Research Center for Magnesium Alloys, College of Materials Science and Engineering, Chongqing University, Chongqing, 400044, P. R. China
- Chongqing Institute of New Energy Storage Materials and Equipment, Chongqing, 400044, P. R. China
| | - Chaohe Xu
- National Engineering Research Center for Magnesium Alloys, College of Materials Science and Engineering, Chongqing University, Chongqing, 400044, P. R. China
- College of Aerospace Engineering, Chongqing University, Chongqing, 400044, P. R. China
- Chongqing Institute of New Energy Storage Materials and Equipment, Chongqing, 400044, P. R. China
| | - Xiaoyuan Zhou
- Chongqing Institute of New Energy Storage Materials and Equipment, Chongqing, 400044, P. R. China
- College of Physics, Chongqing University, Chongqing, 400044, P. R. China
| | - Jingfeng Wang
- National Engineering Research Center for Magnesium Alloys, College of Materials Science and Engineering, Chongqing University, Chongqing, 400044, P. R. China
- Chongqing Institute of New Energy Storage Materials and Equipment, Chongqing, 400044, P. R. China
| | - Fusheng Pan
- National Engineering Research Center for Magnesium Alloys, College of Materials Science and Engineering, Chongqing University, Chongqing, 400044, P. R. China
- Chongqing Institute of New Energy Storage Materials and Equipment, Chongqing, 400044, P. R. China
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Selvam T, Dhinasekaran D, Subramanian B, Rajendran AR. Enhancing Interplanar Spacing in V 2O 3/V 3O 7 Heterostructures to Optimize Cathode Efficiency for Zn-Ion Batteries. J Phys Chem Lett 2024; 15:1338-1346. [PMID: 38285685 DOI: 10.1021/acs.jpclett.3c03590] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2024]
Abstract
The improvement of sophisticated cathode materials plays a major role in boosting the efficiency of Zn-ion batteries. These batteries have garnered considerable interest as a result of their excellent energy density and the promise of cost-effective solutions for energy storage. In this work, we present a novel approach to progress the electrochemical investigation of Zn-ion batteries by expanding the interplanar distance of layered hydrated V2O3/V3O7 heterostructure nanosheets. Electrochemical investigations were conducted to assess the effectiveness of the stacked hydrated V2O3/V3O7 heterostructure as a cathode component for Zn-ion batteries. The expanded interplanar space as a result of the introduction of water molecules facilitates the insertion/extraction of Zn ions, leading to significantly enhanced electrochemical characteristics. The layered hydrated V2O3/V3O7 heterostructure exhibited an impressive specific capacity of 330 mAh g-1 at a current density of 0.1 A g-1, maintaining a capacity retention of approximately 92.3% and a coulombic efficiency of 95.8% even after 2000 cycles.
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Affiliation(s)
- Tharani Selvam
- Functional Nano-Materials (FuN) Laboratory, Department of Physics and Nanotechnology, Faculty of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu 603203, India
| | | | - Balakumar Subramanian
- National Centre for Nanoscience and Nanotechnology, University of Madras, Chennai, Tamil Nadu 600025, India
| | - Ajay Rakkesh Rajendran
- Functional Nano-Materials (FuN) Laboratory, Department of Physics and Nanotechnology, Faculty of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu 603203, India
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Luo T, Wang Y, Elander B, Goldstein M, Mu Y, Wilkes J, Fahrenbruch M, Lee J, Li T, Bao JL, Mohanty U, Wang D. Polysulfides in Magnesium-Sulfur Batteries. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2306239. [PMID: 37740905 DOI: 10.1002/adma.202306239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Revised: 09/08/2023] [Indexed: 09/25/2023]
Abstract
Mg-S batteries hold great promise as a potential alternative to Li-based technologies. Their further development hinges on solving a few key challenges, including the lower capacity and poorer cycling performance when compared to Li counterparts. At the heart of the issues is the lack of knowledge on polysulfide chemical behaviors in the Mg-S battery environment. In this Review, a comprehensive overview of the current understanding of polysulfide behaviors in Mg-S batteries is provided. First, a systematic summary of experimental and computational techniques for polysulfide characterization is provided. Next, conversion pathways for Mg polysulfide species within the battery environment are discussed, highlighting the important role of polysulfide solubility in determining reaction kinetics and overall battery performance. The focus then shifts to the negative effects of polysulfide shuttling on Mg-S batteries. The authors outline various strategies for achieving an optimal balance between polysulfide solubility and shuttling, including the use of electrolyte additives, polysulfide-trapping materials, and dual-functional catalysts. Based on the current understanding, the directions for further advancing knowledge of Mg polysulfide chemistry are identified, emphasizing the integration of experiment with computation as a powerful approach to accelerate the development of Mg-S battery technology.
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Affiliation(s)
- Tongtong Luo
- Department of Chemistry, Boston College, Chestnut Hill, MA, 02467, USA
| | - Yang Wang
- Department of Chemistry, Boston College, Chestnut Hill, MA, 02467, USA
| | - Brooke Elander
- Department of Chemistry, Boston College, Chestnut Hill, MA, 02467, USA
| | - Michael Goldstein
- Department of Chemistry, Boston College, Chestnut Hill, MA, 02467, USA
| | - Yu Mu
- Department of Chemistry, Boston College, Chestnut Hill, MA, 02467, USA
| | - James Wilkes
- Department of Chemistry, Boston College, Chestnut Hill, MA, 02467, USA
| | | | - Justin Lee
- Department of Chemistry, Boston College, Chestnut Hill, MA, 02467, USA
| | - Tevin Li
- Department of Chemistry, Boston College, Chestnut Hill, MA, 02467, USA
| | - Junwei Lucas Bao
- Department of Chemistry, Boston College, Chestnut Hill, MA, 02467, USA
| | - Udayan Mohanty
- Department of Chemistry, Boston College, Chestnut Hill, MA, 02467, USA
| | - Dunwei Wang
- Department of Chemistry, Boston College, Chestnut Hill, MA, 02467, USA
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Jiao M, Wang Y, Li T, Li R, Liu B. Riverine microplastics derived from mulch film in Hainan Island: Occurrence, source and fate. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 312:120093. [PMID: 36064060 DOI: 10.1016/j.envpol.2022.120093] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Revised: 08/27/2022] [Accepted: 08/29/2022] [Indexed: 06/15/2023]
Abstract
Mulch film (MF) residues is an important source of microplastics (MPs) in farmland, but its transportation risk to the wider environment was still unknown. Some researches have pursued the sources of MPs found in exorheic rivers. Even so, a systematic study depicting the occurrence, source and fate of microplastics derived from mulch films (MPMF), the crucial component of MPs in farmlands, in exorheic rivers still lacking. Here, the combination of UV-Vis Raman spectroscopy and X-ray photoelectron spectroscopy (XPS) was used to identify the full-size MPMF (1-5000 μm) in field sediment samples collected by single-diagonal systematic sampling. This study verified that MPMF, a polyethylene-matrix composite doped with additives, contributed a considerable part of MPs detected in upstream farmland soil and riverine sediments, and even had an abundance of 38 ± 11 items/kg to 82 ± 15 items/kg, accounting for 9.0%-13.7% of the total MPs in estuary sediments. Notably, upstream farmland was identified to the main source of the riverine MPMF by partial least square path modeling (PLS-PM), contributing to 94.7% of MPMF in riverside sediments and 85.0% of MPMF in estuary sediments. Our study first demonstrates that MPMF constitutes a non-negligible component of MPs in estuarine sediments and underlines the urgency of strengthening the management of MPs pollution in drainage areas with a high agricultural intensity.
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Affiliation(s)
- Meng Jiao
- School of Marine Sciences, Guangxi University, Nanning, 530004, China
| | - Yijin Wang
- School of Marine Sciences, Guangxi University, Nanning, 530004, China
| | - Tiezhu Li
- School of Resources, Environment and Materials, Guangxi University, Nanning, 530004, China
| | - Ruilong Li
- College of Light Industry and Food Engineering, Guangxi University, Nanning, 530004, China.
| | - Beibei Liu
- Institute of Environmental and Plant Protection, Chinese Academy of Tropical Agricultural Sciences, Haikou, 571101, China
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