Lei Liu , Ruxue Yan , Songyan Jiang , Xiao Liu , Zhonghua Zhang , Xiaosong Guo , Xingguang Liu , Jun Zheng , Guicun Li
{"title":"Regulation of solvation structure and electrochemical performance optimization in Zn(NH2SO3)2-based electrolytes","authors":"Lei Liu , Ruxue Yan , Songyan Jiang , Xiao Liu , Zhonghua Zhang , Xiaosong Guo , Xingguang Liu , Jun Zheng , Guicun Li","doi":"10.1016/j.jechem.2025.01.007","DOIUrl":"10.1016/j.jechem.2025.01.007","url":null,"abstract":"<div><div>Monovalent anions, with relatively low charge density, exhibit weak bond energy with Zn<sup>2+</sup> ions, which facilitates the solubility of Zn salts and the regulation of solvation structures. In this study, zinc bis(aminosulfate) (Zn(NH<sub>2</sub>SO<sub>3</sub>)<sub>2</sub>) with a monovalent anion, NH<sub>2</sub>SO<sub>3</sub><sup>−</sup>, was synthesized and dissolved in different ratios of dimethyl sulfoxide (DMSO) and H<sub>2</sub>O as electrolytes for Zn-ion batteries (ZIBs). From the perspective of game theory, the influences of DMSO and H<sub>2</sub>O on the solvation structure and electrochemical performance of the Zn(NH<sub>2</sub>SO<sub>3</sub>)<sub>2</sub> based electrolytes has been meticulously discussed. Computations and spectra analysis indicate that DMSO molecules are reluctant to penetrate the primary solvation structure of Zn<sup>2+</sup> ions. Indeed, increasing DMSO in electrolytes can induce a transition from solvent-separated ion pairs (SSIP) to contact ion pairs (CIP), resulting in an enrichment of anions in the primary solvation structure. This alteration can significantly suppress parasitic reactions, enhance nucleation density, and refine the deposition morphology during the Zn plating process, leading to superior cyclic stability and high coulombic efficiency (CE) of Zn//Cu and Zn//Zn cells. However, the enrichment of anions in the primary solvation structure also inhibits the activity of Zn<sup>2+</sup> ions, amplifies the polarization effect, and engenders a sluggish ionization dynamics, resulting in the low energy conversion efficiency of the battery. These findings underscore the influence of the anion ratio within the primary solvation structure on electrochemical properties of electrolytes for ZIBs, which may be a pivotal determinant in the Zn deposition process.</div></div>","PeriodicalId":15728,"journal":{"name":"Journal of Energy Chemistry","volume":"104 ","pages":"Pages 644-654"},"PeriodicalIF":13.1,"publicationDate":"2025-01-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143422415","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Chenghao Qian , Shengsi Wang , Que Huang , Zhen Tian , Changcheng Liu , Yuelei Pan , Xingguo Qi , Yanjun Chen
{"title":"Aqueous multifunctional binder boosting high energy and thermal safety of Na3V2(PO4)3","authors":"Chenghao Qian , Shengsi Wang , Que Huang , Zhen Tian , Changcheng Liu , Yuelei Pan , Xingguo Qi , Yanjun Chen","doi":"10.1016/j.jechem.2024.12.060","DOIUrl":"10.1016/j.jechem.2024.12.060","url":null,"abstract":"<div><div>The conventional cathode processing utilizes a polyvinylidene fluoride/N-methyl-2-pyrrolidone (PVDF/NMP) binder system, which is afflicted by its toxic and mutagenic characteristics, as well as inadequate binding strength. Furthermore, the protracted drying rate of NMP results in uneven accumulation and gradient distribution of cathode materials throughout the extended drying process, thereby adversely impacting electron and ion transport as well as the integrity of the interface structure. This study introduces polyethyleneimine (PEI) as an aqueous multifunctional binder, which enhances the adhesion between electrode materials, improves mechanical stability, and reduces material detachment and damage, thereby extending the lifespan of Na<sub>3</sub>V<sub>2</sub>(PO<sub>4</sub>)<sub>3</sub> (NVP). Concurrently, PEI can regulate the particle distribution and structure of electrodes, optimize the porosity and charge transport pathways, and improve the energy density and cycling stability of NVP. Furthermore, PEI exhibits superior thermal stability at elevated temperatures, enhancing the reliability of battery performance in high-temperature environments. Leveraging these advantages, the application of PEI as a binder in this study has the potential to augment the energy density, cycle life, and safety of batteries, thereby offering a novel approach for optimizing sodium-ion batteries (SIBs) and advancing the development of battery technology.</div></div>","PeriodicalId":15728,"journal":{"name":"Journal of Energy Chemistry","volume":"104 ","pages":"Pages 773-788"},"PeriodicalIF":13.1,"publicationDate":"2025-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143436980","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Kejian Tang , Yingxinjie Wang , Xiangqi Peng , Ziying Zhang , Guohao Li , Jie Wang , Chi Chen , Zhenjun Wu , Xiuqiang Xie
{"title":"Engineered high-density carbon defects enable accelerated sulfur conversion for kinetics-boosted room-temperature sodium-sulfur batteries","authors":"Kejian Tang , Yingxinjie Wang , Xiangqi Peng , Ziying Zhang , Guohao Li , Jie Wang , Chi Chen , Zhenjun Wu , Xiuqiang Xie","doi":"10.1016/j.jechem.2025.01.005","DOIUrl":"10.1016/j.jechem.2025.01.005","url":null,"abstract":"<div><div>The practical application of room-temperature sodium-sulfur (RT Na-S) batteries is hindered by sluggish reaction kinetics and deleterious side reactions. To address these challenges, a defective carbon is designed as a sulfur host through a simple temperature-controlled method. The abundant porosity and surface roughness enhance sulfur encapsulation and mitigate side reactions. Prominently, highly disordered structure facilitates the chemical adsorption towards NaPSs and accelerates sulfur conversion. Furthermore, electrochemical characterizations reveal that concentration polarization during the formation of long-chain NaPSs emerges as the key polarization and activation polarization dominates the nucleation of Na<sub>2</sub>S during discharge, while they both significantly affect the formation of S<sub>8</sub>/long-chain NaPSs during charge. Owing to the improved adsorption capability and electrocalatytic sites, S/CZ-900 presents lower concentration polarization and activation polarization during both discharge and charge. Consequently, S/CZ-900 cathode achieves 1031, 914, and 671 mAh g<sup>−1</sup> at 1, 2, and 5 C. The cathode with a high sulfur loading of 6.4 mg cm<sup>−2</sup> delivers an impressive areal capacity of 14.3 mAh cm<sup>−2</sup>. Moreover, the S/CZ-900||Na/CZ-900 (Al) full cell exhibits robust cycling stability, maintaining 1094 mAh g<sup>−1</sup> after 40 cycles at 0.1 C. The insights provide a workable solution of metal-free carbonaceous host materials for the evolution of RT Na-S batteries.</div></div>","PeriodicalId":15728,"journal":{"name":"Journal of Energy Chemistry","volume":"104 ","pages":"Pages 442-451"},"PeriodicalIF":13.1,"publicationDate":"2025-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143139151","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Chunxia Wu , Yanhui Yu , Yiming Song , Peng Rao , Xingqi Han , Ying Liang , Jing Li , Kai Zhang , Zhenjie Zhang , Peilin Deng , Xinlong Tian , Daoxiong Wu
{"title":"Pyrrole-type TM-N3 sites as high-efficient bifunctional oxygen reactions electrocatalysts: From theoretical prediction to experimental validation","authors":"Chunxia Wu , Yanhui Yu , Yiming Song , Peng Rao , Xingqi Han , Ying Liang , Jing Li , Kai Zhang , Zhenjie Zhang , Peilin Deng , Xinlong Tian , Daoxiong Wu","doi":"10.1016/j.jechem.2025.01.002","DOIUrl":"10.1016/j.jechem.2025.01.002","url":null,"abstract":"<div><div>Efficient catalysis of the oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) is essential for the rechargeable zinc-air batteries (R-ZABs). However, challenges remain due to the scarcity of effective bifunctional electrocatalysts and limited understanding of the structure-activity relationships. Pyrrole-type single-atom catalysts (SACs) with unique electronic structures have emerged as promising electrocatalysts. In this work, we combine density functional theory (DFT) calculations and experimental studies to systematically explore the structure-activity relationships and potential of pyrrole-type transition metal-N<sub>3</sub> (TM-po-N<sub>3</sub>) as bifunctional catalysts. DFT calculations reveal that differences in the dependence of ORR and OER activities on the free energy of adsorption of reaction intermediates significantly affect the TM-po-N<sub>3</sub> bifunctional activity and identify magnetic Cu-po-N<sub>3</sub> as the best candidate. The bifunctional activity of Cu-po-N<sub>3</sub> originates from interactions between spin-polarized out-of-plane Cu_3<em>d</em> and O_2<em>s</em>+2<em>p</em> orbitals. Theoretical predictions are validated experimentally, showing that the synthesized Cu-SAC/NC exhibits excellent bifunctional performance with a small potential gap of 0.666 V. Additionally, the assembled R-ZABs display a high-power density of 170 mW cm<sup>−2</sup> and long-term stability, with the charge-discharge voltage gap increasing by only 0.01 V over 240 h. This work provides new insights into the design of efficient bifunctional catalysts.</div></div>","PeriodicalId":15728,"journal":{"name":"Journal of Energy Chemistry","volume":"104 ","pages":"Pages 472-481"},"PeriodicalIF":13.1,"publicationDate":"2025-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143138201","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Mingguang Wu , Guixian Liu , Jian He , Jiandong Liu , Shihan Qi , Huaping Wang , Rui Wen , Abdullah N. Alodhayb , Jianmin Ma
{"title":"Weakly polar additives boost Li+ diffusion kinetics and alleviate electrolyte solvent decomposition for lithium metal batteries","authors":"Mingguang Wu , Guixian Liu , Jian He , Jiandong Liu , Shihan Qi , Huaping Wang , Rui Wen , Abdullah N. Alodhayb , Jianmin Ma","doi":"10.1016/j.jechem.2024.12.064","DOIUrl":"10.1016/j.jechem.2024.12.064","url":null,"abstract":"<div><div>The performance of lithium metal batteries (LMBs) is greatly hampered by the unstable solid electrolyte interphase (SEI) and uncontrollable growth of Li dendrites. To address this question, we developed a weak polar additive strategy to develop stable and dendrite-free electrolyte for LMBs. In this paper, the effects of additives on the Li<sup>+</sup> solvation kinetics and the electrode-electrolyte interphases (EEI) formation are discussed. The function of synergistically boosting the superior Li<sup>+</sup> kinetics and alleviating solvent decomposition on the electrodes is confirmed. From the thermodynamic view, the exothermic process of defluorination reaction for 3, 5-difluoropyridine (3, 5-DFPy) results in the formation of LiF-rich SEI layer for promoting the uniform Li nucleation and deposition. From the dynamic view, the weakened Li<sup>+</sup> solvation structure induced by weak polar 3, 5-DFPy contributes to better Li<sup>+</sup> kinetics through the easier Li<sup>+</sup> desolvation. As expected, Li||Li cell with 1.0 wt% 3, 5-DFPy exhibits 400 cycles at 1.0 mA cm<sup>−2</sup> with a deposition capacity of 0.5 mAh cm<sup>−2</sup>, and the Li||LiNi<sub>0.6</sub>Mn<sub>0.2</sub>Co<sub>0.2</sub>O<sub>2</sub> batteries delivers the highly reversible capacity after 200 cycles.</div></div>","PeriodicalId":15728,"journal":{"name":"Journal of Energy Chemistry","volume":"104 ","pages":"Pages 670-677"},"PeriodicalIF":13.1,"publicationDate":"2025-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143422419","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Wangyue Xu , Hongwei Wang , Hao Li , Juanxiu Xiao , Song Bi , Wei Xiao
{"title":"Co-electrolysis of carbon dioxide and ferrous oxide in Ca-based molten salt to iron-encapsulated carbon nanotubes with enhanced microwave absorption","authors":"Wangyue Xu , Hongwei Wang , Hao Li , Juanxiu Xiao , Song Bi , Wei Xiao","doi":"10.1016/j.jechem.2024.12.061","DOIUrl":"10.1016/j.jechem.2024.12.061","url":null,"abstract":"<div><div>Direct utilization of co-existed ferrous oxide (FeO) dust in CO<sub>2</sub> flue gas from the steel industry to product value-added materials is yet to be established. Inspired by the form of CaO-CaCO<sub>3</sub> as natural carbon cycle and the high oxide dissolution capacity of molten salts, CaO is herein introduced into the affordable molten NaCl-CaCl<sub>2</sub>-FeO salt to generate CO<sub>3</sub><sup>2−</sup> through an efficient capture of CO<sub>2</sub>. The subsequent co-electrolysis of FeO and CO<sub>3</sub><sup>2−</sup> successfully produces cathodic Fe-encapsulated carbon nanotubes (Fe@CNT) with enhanced energy efficiency (current efficiency of 83.1% for CO<sub>2</sub> reduction and energy consumption of 22.49 kWh kg<sup>−1</sup> for Fe@CNT generation). The in-situ capture of CO<sub>2</sub> by O<sup>2−</sup> generated from the electro-deoxidation of FeO bridges the electrolysis of CO<sub>2</sub> and FeO, rendering the enhanced current efficiency of the co-electrolysis and template-free generation of Fe@CNT. When evaluated as functional materials for electromagnetic wave absorption, the Fe@CNT integrates dielectric loss of CNT and electromagnetic loss from Fe. The Fe well-defined in CNT induces the synergistic loss and further improves the impedance matching, resulting in excellent electromagnetic wave absorption performance. The co-electrolysis establishes a promising strategy for converting CO<sub>2</sub> into highly functional materials directly from CO<sub>2</sub>-containing flue gas from steel industrial without dust removal.</div></div>","PeriodicalId":15728,"journal":{"name":"Journal of Energy Chemistry","volume":"104 ","pages":"Pages 147-154"},"PeriodicalIF":13.1,"publicationDate":"2025-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143139039","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Principles, progress, and prospects of photo-rechargeable zinc-ion batteries","authors":"Kejun Jin, Yingjian Yu","doi":"10.1016/j.jechem.2024.12.058","DOIUrl":"10.1016/j.jechem.2024.12.058","url":null,"abstract":"<div><div>Solar energy has emerged as one of the most crucial yet underutilized renewable energy sources resources owing to the intermittent nature of sunlight. Therefore, integrating solar cells with rechargeable batteries is essential for achieving a continual and renewable energy future. Zinc-ion batteries (ZIBs) are considered the most prospective next-generation energy storage devices owing to their ideal theoretical energy density, affordability, security and portability. However, the commercial application of ZIBs is hindered by the limited electrochemical performance of their cathodes. The use of efficient and cost-effective solar energy to accelerate the slow cathodic reaction kinetics has emerged as a promising tactic to address this challenge. This review explores the working mechanism of photo-rechargeable ZIBs (PRZIBs) and summarizes recent research progress based on four key design principles. These principles include modulating energy band structure, enhancing photogenerated carriers (PGC) separation, minimizing carrier recombination, and utilizing the photothermal effect. Finally, the review outlines prospects and provides constructive guidance for developing PRZIBs.</div></div>","PeriodicalId":15728,"journal":{"name":"Journal of Energy Chemistry","volume":"104 ","pages":"Pages 382-396"},"PeriodicalIF":13.1,"publicationDate":"2025-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143139063","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jiahui Li, Peng Huang, Zhijie Zhang, Cuihua Tian, Yu Liao, Tai Yang, Yan Qing, Yiqiang Wu
{"title":"Encapsulating Ru doped Co/Co2P nanoparticles into delignified and TEMPO oxidized wood carbon enabling efficient pH-universal hydrogen evolution reaction","authors":"Jiahui Li, Peng Huang, Zhijie Zhang, Cuihua Tian, Yu Liao, Tai Yang, Yan Qing, Yiqiang Wu","doi":"10.1016/j.jechem.2024.12.059","DOIUrl":"10.1016/j.jechem.2024.12.059","url":null,"abstract":"<div><div>High-performance catalyst is significant for the sustainable hydrogen (H<sub>2</sub>) production by electrocatalytic water splitting. Optimizing porous structure and active groups of substrate can promote the interaction of substrate and active metal particles, enabling excellent catalytic properties and stability. Herein, the optimization strategy of delignification and 2,2,6,6-tetramethylpyperidine-1-oxyl (TEMPO) oxidization was developed to modify the porous structure and active groups of wood substrate, and Ru doped Co/Co<sub>2</sub>P (Ru-Co/Co<sub>2</sub>P) nanoparticles were encapsulated into the optimized wood carbon substrate (Ru-Co/Co<sub>2</sub>P@TDCW) for the efficient pH-universal hydrogen evolution reaction (HER). The nanopore and carboxyl groups were produced by delignification and TEMPO oxidation, which accelerated the dispersion and deposition of Ru-Co/Co<sub>2</sub>P nanoparticles. The RuCo alloy and RuCoP nanoparticles were produced with the doping of Ru, and more Ru-Co/Co<sub>2</sub>P nanoparticles were anchored by the delignified and TEMPO oxidized wood carbon (TDCW). As anticipated, the Ru-Co/Co<sub>2</sub>P@TDCW catalyst exhibited excellent pH-universal HER activity, and only 16.6, 93, and 43 mV of overpotentials were required to deliver the current density of 50 mA cm<sup>−2</sup> in alkaline, neutral, and acidic electrolytes, outperforming the noble Pt/C/TDCW catalyst significantly. In addition, Ru-Co/Co<sub>2</sub>P@TDCW catalyst presented excellent stability for more than 600 h working at 100 mA cm<sup>−2</sup> in alkaline solution (1.0 M KOH). Density function theory (DFT) results revealed that energy barriers for the dissociation of H<sub>2</sub>O and the formation of H<sub>2</sub> were decreased by the doping of Ru, and the conductivity and efficiency of electron migration were also enhanced. This work demonstrated a strategy to optimize the structure and properties of wood carbon substrate, providing a promising strategy to synthesize high-efficiency catalyst for H<sub>2</sub> production.</div></div>","PeriodicalId":15728,"journal":{"name":"Journal of Energy Chemistry","volume":"104 ","pages":"Pages 452-461"},"PeriodicalIF":13.1,"publicationDate":"2025-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143139152","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Menglu Lu, Tianqi Yang, Wenkui Zhang, Yang Xia, Xinping He, Xinhui Xia, Yongping Gan, Hui Huang, Jun Zhang
{"title":"Hydrogen-bond enhanced urea-glycerol eutectic electrolyte to boost low-cost and long-lifespan aqueous sodium-ion batteries","authors":"Menglu Lu, Tianqi Yang, Wenkui Zhang, Yang Xia, Xinping He, Xinhui Xia, Yongping Gan, Hui Huang, Jun Zhang","doi":"10.1016/j.jechem.2025.01.004","DOIUrl":"10.1016/j.jechem.2025.01.004","url":null,"abstract":"<div><div>Aqueous sodium-ion batteries (ASIBs) have garnered significant attention as promising candidates for large-scale energy storage applications. This interest is primarily due to their abundant resource availability, environmental friendliness, cost-effectiveness, and high safety. However, their electrochemical performance is limited by the thermodynamic properties of water molecules, resulting in inadequate cycling stability and insufficient specific energy density. To address these challenges, this study developed a hydrogen-bond enhanced urea-glycerol eutectic electrolyte (UGE) to expand the electrochemical stability window (ESW) of the electrolyte and suppress corresponding side reactions. The eutectic component disrupts the original hydrogen bonding network in water, creating a new, enhanced network that reduces the activity of free water and forms a uniform, dense passivation layer on the anode. As a result, the optimized composition of UGE exhibits a broad ESW of up to 3 V (−1.44 to 1.6 V vs. Ag/AgCl). The Prussian blue (PB)/UGE/NaTi<sub>2</sub>(PO<sub>4</sub>)<sub>3</sub>@C full cell exhibits an exceptionally long lifespan of 10,000 cycles at 10 C. This study introduces a low-cost, ultra-long-life ASIB system, utilizing a green and economical eutectic electrolyte, which expands the use of eutectic electrolytes in aqueous batteries and opens a new research horizon for constructing efficient electrochemical energy storage and conversion.</div></div>","PeriodicalId":15728,"journal":{"name":"Journal of Energy Chemistry","volume":"104 ","pages":"Pages 462-471"},"PeriodicalIF":13.1,"publicationDate":"2025-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143138199","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Intermediate-motivated charge transfer via alternate dipoles accelerating the deep redox of iodine/sulfur/molybdenum for high-performance multiple ion batteries","authors":"Chao Chen, Ruijie Li, Yun Gong","doi":"10.1016/j.jechem.2024.12.062","DOIUrl":"10.1016/j.jechem.2024.12.062","url":null,"abstract":"<div><div>Sodium-sulfur and sodium-iodine batteries are attractive due to their low cost and high capacities. However, they suffer from polysulfide/polyiodide dissolution and fast capacity decay. To solve these issues, herein, an organic species-intercalated layered MoS<sub>2</sub> with oxygen-dopant (Org-MoS<sub>2</sub>) was designed for the iodine encapsulation. The chemically-bonded S<sup>2−</sup> from the S–Mo–S layer can not only stabilize the in situ generated I<sup>+</sup> intermediate to boost the redox kinetics and deep transformations of 2I<sup>−</sup> ↔ I<sub>2</sub> ↔ 2I<sup>+</sup>, but also undergo the conversion of S<sup>2−</sup> ↔ S<sup>δ−</sup> in the high voltage range of 1.5–3.4 V without structural collapse and shuttle effect. That is owning to the I<sup>+</sup>-induced local charge and the electron reservoir of multi-valent Mo, which facilitate effective charge transfer via alternate dipoles of I<sup>δ+</sup>−<sup>δ−</sup>S<sup>δ+</sup>/<sup>δ−</sup>O<sup>δ+</sup>−<sup>δ−</sup>Mo<sup>δ+</sup>−<sup>δ−</sup>S<sup>δ+</sup> and promote the redox of I/S/Mo. Meanwhile, the incorporated organic species are transformed into an aromatic carbonaceous material with improved electron conductivity and thinner thickness in the cycling test accompanied by the exposure of more Mo–O–Mo linkages, resulting in an increasing ultrahigh capacity and outstanding long-term durability of Org-MoS<sub>2</sub>@I<sub>2</sub>.</div></div>","PeriodicalId":15728,"journal":{"name":"Journal of Energy Chemistry","volume":"104 ","pages":"Pages 297-311"},"PeriodicalIF":13.1,"publicationDate":"2025-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143139064","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}