IF 5.4 1区化学

GIANT Pub Date : 2024-08-22 DOI: 10.1016/j.giant.2024.100336

Hongmei Zhuo , Beibei Qiu , Xiaojun Li , Zhi-Guo Zhang , Yongfang Li

{"title":"Giant molecule acceptors for high performance polymer solar cells","authors":"Hongmei Zhuo , Beibei Qiu , Xiaojun Li , Zhi-Guo Zhang , Yongfang Li","doi":"10.1016/j.giant.2024.100336","DOIUrl":"10.1016/j.giant.2024.100336","url":null,"abstract":"<div><p>Giant molecule acceptors (GMAs) are composed of two or more narrow bandgap small molecule acceptors (SMAs) subunits connected by conjugated or non-conjugated linking units, which possesses the advantages of the SMAs with broad absorption, appropriate electronic energy levels and fixed molecular weight (with good photovoltaic performance reproducibility), and the polymerized SMAs (PSMAs) with good film-forming property and high morphology stability and photo-stability. So that the GMAs are promising for future commercial application in polymer solar cells (PSCs). Therefore, the GMAs have attracted great attention recently. In this review, we will briefly introduce the development of the narrow bandgap SMAs, especially the A-DA’D-A structured SMAs, and the PSMAs. Then we will focus on the recent research progress of the GMAs, including the synthetic method of GMAs and the effect of number of the SMA subunits on the photovoltaic performance of the GMAs. Finally, we present our perspectives and offer a concise outlook on the further advancement of the GMAs.</p></div>","PeriodicalId":34151,"journal":{"name":"GIANT","volume":"20 ","pages":"Article 100336"},"PeriodicalIF":5.4,"publicationDate":"2024-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666542524001000/pdfft?md5=10ab1653557cd9ed723c0a165fe256fe&pid=1-s2.0-S2666542524001000-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142087606","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Recent progress in gel polymer electrolyte for lithium metal batteries 用于锂金属电池的凝胶聚合物电解质的最新进展

IF 5.4 1区化学

GIANT Pub Date : 2024-08-22 DOI: 10.1016/j.giant.2024.100337

Changxing Han , Xiong Shui , Guansheng Chen , Gaojie Xu , Jun Ma , Shanmu Dong , Shitao Wang , Xinhong Zhou , Zili Cui , Lixin Qiao , Guanglei Cui

{"title":"Recent progress in gel polymer electrolyte for lithium metal batteries","authors":"Changxing Han , Xiong Shui , Guansheng Chen , Gaojie Xu , Jun Ma , Shanmu Dong , Shitao Wang , Xinhong Zhou , Zili Cui , Lixin Qiao , Guanglei Cui","doi":"10.1016/j.giant.2024.100337","DOIUrl":"10.1016/j.giant.2024.100337","url":null,"abstract":"<div><p>Lithium metal batteries (LMBs) with high energy density have been deemed as one of the promising alternatives to alleviate the “range anxiety” of current electric vehicles based on traditional lithium-ion batteries. However, LMBs using traditional liquid electrolytes (LEs) are always facing serious lithium dendrite growth and electrolyte leakage issues, which could usually cause serious safety concerns. Solid polymer electrolytes (SPEs) with high mechanical stability could suppress the lithium dendrites to some extent, however, they are suffering from low ionic conductivity and inferior interfacial contact with electrodes. Gel polymer electrolytes (GPEs) combining the advantages of traditional LEs and SPEs could be a promising choice to alleviate above issues. In this review, we systematically summarized and clarified very recent progress of various advanced GPEs for LMBs, which is mainly focusing on the advancement of different polymer matrices used for GPE-based LMBs as well as the development of methodologies for the preparation of GPEs. In addition, we also provide a perspective aiming at inspiring new ideas and directions to design reliable GPEs for advancing the performance of LMBs and boosting their practical application.</p></div>","PeriodicalId":34151,"journal":{"name":"GIANT","volume":"20 ","pages":"Article 100337"},"PeriodicalIF":5.4,"publicationDate":"2024-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666542524001012/pdfft?md5=d1fe0b732e6ae08beaca706f53b1556c&pid=1-s2.0-S2666542524001012-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142097218","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Backbone engineering and side group manipulation in covalent organic frameworks for overall solar-driven hydrogen peroxide production 共价有机框架中的骨架工程和侧基操作，用于太阳能驱动的过氧化氢整体生产

IF 5.4 1区化学

GIANT Pub Date : 2024-08-20 DOI: 10.1016/j.giant.2024.100335

Ying Zhang , Hangxun Xu

{"title":"Backbone engineering and side group manipulation in covalent organic frameworks for overall solar-driven hydrogen peroxide production","authors":"Ying Zhang , Hangxun Xu","doi":"10.1016/j.giant.2024.100335","DOIUrl":"10.1016/j.giant.2024.100335","url":null,"abstract":"<div><p>Covalent Organic Frameworks (COFs) have emerged as highly promising materials for the photocatalytic production of hydrogen peroxide (H<sub>2</sub>O<sub>2</sub>) due to their exceptional structural tunability, robust frameworks, and high porosity. The efficient overall photosynthesis of H<sub>2</sub>O<sub>2</sub> hinges on the simultaneous occurrence of the oxygen reduction reaction (ORR) and water oxidation reaction (WOR). This review introduces recent progress in developing key approaches such as backbone engineering and the incorporation of side groups to facilitate these critical reaction pathways. For example, innovative COF designs, such as spatially separating redox centers, have demonstrated significant improvements in photocatalytic performance. Moreover, the introduction of thioether-decorated triazine-based COFs and hexavalent triphenylene knots has led to remarkable H<sub>2</sub>O<sub>2</sub> production rates. Furthermore, this review also addresses the challenges associated with the practical implementation of COFs, including their stability under operational conditions and the necessity for innovative reactor designs. The future prospects of COFs in sustainable chemical synthesis are also discussed, emphasizing their potential for COFs to revolutionize H<sub>2</sub>O<sub>2</sub> production through green and sustainable methodologies. This review aims to provide valuable insights into the design and development of high-performance COF photocatalysts, paving the way for their practical applications in the sustainable production of value-added chemicals.</p></div>","PeriodicalId":34151,"journal":{"name":"GIANT","volume":"20 ","pages":"Article 100335"},"PeriodicalIF":5.4,"publicationDate":"2024-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666542524000997/pdfft?md5=81435ea98e51b2dffd6205e621840e54&pid=1-s2.0-S2666542524000997-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142077396","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Recycling of human teeth for piezoelectric energy harvesting 回收人类牙齿用于压电能量采集

IF 5.4 1区化学

GIANT Pub Date : 2024-08-13 DOI: 10.1016/j.giant.2024.100333

Yuanyuan Yin , Shuaijie Liu , Yuehui Wang , Sihan Yang , Min Ding , Xiaohui Xu , Wei Ji , Jinlin Song

{"title":"Recycling of human teeth for piezoelectric energy harvesting","authors":"Yuanyuan Yin , Shuaijie Liu , Yuehui Wang , Sihan Yang , Min Ding , Xiaohui Xu , Wei Ji , Jinlin Song","doi":"10.1016/j.giant.2024.100333","DOIUrl":"10.1016/j.giant.2024.100333","url":null,"abstract":"<div><p>In the human body, non-centrosymmetric biological structures exhibit piezoelectric effect across from microscopic biomolecular building blocks to macroscopic tissues and organs. However, the fabrication of piezoelectric devices from discarded natural tissues and organs has rarely been exploited for energy harvesting applications. Herein, the extracted human teeth were recycled as an active layer in a piezoelectric nanogenerator for power generation. Due to the piezoelectric effect of enamel and dentin, a human teeth-based sandwiched piezoelectric nanogenerator was fabricated, producing high and stable power outputs with an open-circuit voltage of approximately 0.9 V under an external force at 60 N. Furthermore, the high mechanical durability of the piezoelectric nanogenerator was also verified after 1600 pressing-and-releasing cycles without noticeable output degradation. Notably, for the first time, a light-emitting diode (LED) was illuminated by the human teeth-based piezoelectric device. This work exemplifies a sustainable strategy to recycle the extracted human teeth by fabricating a piezoelectric nanogenerator for energy harvesting, providing inspiration for converting waste into wealth toward green energy in bionanotechnology.</p></div>","PeriodicalId":34151,"journal":{"name":"GIANT","volume":"20 ","pages":"Article 100333"},"PeriodicalIF":5.4,"publicationDate":"2024-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666542524000973/pdfft?md5=01f7c9c6d57fb30d4ca8d86951ac504c&pid=1-s2.0-S2666542524000973-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142049948","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Unraveling the nanostructures and self-assembly behavior of perfluorosulfonic acid in water/ethanol solvent: Effect of EW and side-chain chemistry 揭示全氟磺酸在水/乙醇溶剂中的纳米结构和自组装行为：EW和侧链化学性质的影响

IF 5.4 1区化学

GIANT Pub Date : 2024-08-13 DOI: 10.1016/j.giant.2024.100332

Jingnan Song , Suyan Wang , Wutong Zhao , Bonan Hao , Ming Zhang , Yecheng Zou , Gang Wei , Jia Liu , Guangying Chen , Huan Ren , Xuefei Wu , Xuesong Jiang , Yongfeng Zhou , Feng Liu , Yongming Zhang

{"title":"Unraveling the nanostructures and self-assembly behavior of perfluorosulfonic acid in water/ethanol solvent: Effect of EW and side-chain chemistry","authors":"Jingnan Song , Suyan Wang , Wutong Zhao , Bonan Hao , Ming Zhang , Yecheng Zou , Gang Wei , Jia Liu , Guangying Chen , Huan Ren , Xuefei Wu , Xuesong Jiang , Yongfeng Zhou , Feng Liu , Yongming Zhang","doi":"10.1016/j.giant.2024.100332","DOIUrl":"10.1016/j.giant.2024.100332","url":null,"abstract":"<div><p>The perfluorosulfonic acid (PFSA) ionomers are key materials for proton exchange membranes (PEMs) and catalyst layers (CLs). Their morphology is profoundly influenced by the chain assembly behavior of PFSA in dispersions. Hence, we combine the characterization techniques of dynamic light scattering (DLS), small-angle X-ray scattering (SAXS), and cryo-transmission electron microscopy (Cryo-TEM) to study the nanostructures of PFSA dispersions, and provide a structure model for diverse PFSA ionomers in water/ethanol solvent. It is seen that PFSA ionomers self-assembly into a rod-like particle in dilute dispersion. As the concentration increases, the primary rod aggregates gradually assemble into a swollen- or Gaussian-network structure. Beyond this feature, we see that different PFSA ionomers show different nanostructures in dispersion. For the long-side-chain (LSC) PFSA ionomers, the 800-LSC PFSA tends to form monodisperse rod-like aggregates that is in a highly ordered arrangement with a rod diameter of 3.16 nm and a length of 28.72 nm. As the equivalent weight (EW) increases to 960, the poor solubility of the main chains in water/ethanol solvents leads to the “end-to-end” assemblies of the primary rod particles and dendritic secondary aggregates. The short-side-chain (SSC) PFSA ionomer that shares the same backbone with 960-LSC PFSA exhibit remarkable mono-dispersity and ordered arrangement of rod-like aggregates in water/ethanol solvents due to the strong electrostatic repulsion.</p></div>","PeriodicalId":34151,"journal":{"name":"GIANT","volume":"20 ","pages":"Article 100332"},"PeriodicalIF":5.4,"publicationDate":"2024-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666542524000961/pdfft?md5=03221d17c213662f544e4ccb9add7ea5&pid=1-s2.0-S2666542524000961-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142048542","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Organic photovoltaic materials with near-infrared II-region response 具有近红外 II 区响应的有机光伏材料

IF 5.4 1区化学

GIANT Pub Date : 2024-08-13 DOI: 10.1016/j.giant.2024.100334

Lei Li , Tengfei Li , Yuze Lin

{"title":"Organic photovoltaic materials with near-infrared II-region response","authors":"Lei Li , Tengfei Li , Yuze Lin","doi":"10.1016/j.giant.2024.100334","DOIUrl":"10.1016/j.giant.2024.100334","url":null,"abstract":"<div><p>Organic photovoltaic materials have been widely used in organic solar cells (OSCs) and organic photodetectors (OPDs) systems, owing to their numerous advantages such as low cost, light weight, high structural tunability, and ease of solution processing. Among these materials, near-infrared (NIR)-responsive materials, especially those with NIR II-region (1000–1700 nm) response, are crucial in the construction of tandem OSCs and semitransparent OSCs to achieve high power conversion efficiency and high light utilization efficiency, respectively. Meanwhile, OPDs with NIR II-region response show great application potential in industrial, military, and medical fields. In recent years, some progress has been made in the development of organic photovoltaic materials and devices with NIR II-region response. This review provides an overview of the design strategies for NIR organic photovoltaic materials, followed by a classification and summary of representative organic NIR II-region responsive materials and their performance in OSCs and OPDs. Lastly, we conclude with an outlook on the development of organic photovoltaic materials with NIR II-region response.</p></div>","PeriodicalId":34151,"journal":{"name":"GIANT","volume":"20 ","pages":"Article 100334"},"PeriodicalIF":5.4,"publicationDate":"2024-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666542524000985/pdfft?md5=ae9cd13c477ddfae4f6c8373b22f4b83&pid=1-s2.0-S2666542524000985-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142044704","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Surface-induced orientation of liquid crystal phases 表面诱导的液晶相定向

IF 5.4 1区化学

GIANT Pub Date : 2024-08-01 DOI: 10.1016/j.giant.2024.100324

Wantae Kim , Dae Seok Kim , Dong Ki Yoon

{"title":"Surface-induced orientation of liquid crystal phases","authors":"Wantae Kim , Dae Seok Kim , Dong Ki Yoon","doi":"10.1016/j.giant.2024.100324","DOIUrl":"10.1016/j.giant.2024.100324","url":null,"abstract":"<div><p>Liquid crystal (LC) phases have been used in various self-assembly technologies owing to their stimuli-responsive characteristics. Especially, orientation-controlled LC structures on and in surfaces are extensively studied in physics, chemistry, and materials science because they can be used in patterning applications beyond the conventional LC display. The key idea in recent development is to control the surface anchoring condition between the substrate and LC materials. Specifically, defects in the LC phases have been introduced as an effective lithographic tool for fabricating distinguished patterns. In this review, the bulk and surface-induced structures of LC materials are overviewed to show the relationship between the surface characteristics of the substrates and the elastic properties of LC materials. The two main themes are (1) orientation control, which can be achieved by micro- and nano-confinement using solid and fluid substrates, and (2) the application of LC materials as optoelectronics and sensors. Finally, the review discusses the defect structures of LC materials fabricated on flexible substrates and their possible applications.</p></div>","PeriodicalId":34151,"journal":{"name":"GIANT","volume":"19 ","pages":"Article 100324"},"PeriodicalIF":5.4,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666542524000882/pdfft?md5=b89917a62352392b92a205d3de90a5b2&pid=1-s2.0-S2666542524000882-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141692313","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Silica gel-supported Pd nanocatalyst: Efficient Mizoroki-Heck reactions and sustainable Ozagrel synthesis 硅胶支撑的钯纳米催化剂：高效的 Mizoroki-Heck 反应和可持续的 Ozagrel 合成

IF 5.4 1区化学

GIANT Pub Date : 2024-08-01 DOI: 10.1016/j.giant.2024.100326

Shaheen M. Sarkar , Md Lutfor Rahman

{"title":"Silica gel-supported Pd nanocatalyst: Efficient Mizoroki-Heck reactions and sustainable Ozagrel synthesis","authors":"Shaheen M. Sarkar , Md Lutfor Rahman","doi":"10.1016/j.giant.2024.100326","DOIUrl":"10.1016/j.giant.2024.100326","url":null,"abstract":"<div><p>We developed a cost-effective silica gel-supported palladium nanocatalyst in a three-step reactions process. Initially, silica gel (60–120 mesh) underwent amino group functionalization using 3-aminopropyltriethoxysilane, leading to the formation of a Schiff base through a reaction with the 1,10-phenanthroline-2,9-dicarboxaldehyde ligand. Subsequently, palladium nanocatalyst was introduced to the silica matrix ligand in the presence of palladium salt and hydrazine hydrate, resulting in the formation of the silica gel-supported Schiff-base palladium nanocatalyst (<strong>Si@SBPdNPs 3</strong>). Successful functionalization of the silica matrix was confirmed using various spectroscopic techniques. FT-IR spectra demonstrated the incorporation of organic moieties onto the silica surface, while SEM images revealed the modified spherical shape of the silica gel. TEM and XRD analyses confirmed the presence of palladium on the silica matrix. ICP and EDX measurements validated the anchoring of 0.55 mmol/g of palladium to the catalyst. Additionally, XPS analysis showed the complexation of Pd<sup>(0)</sup> with the organic ligand on the silica matrix, confirming the successful integration of palladium into the system. This nanocatalyst demonstrated outstanding performance in Mizoroki-Heck reactions, yielding high product outputs in the cross-coupling of various aryl halides and olefins under mild conditions. Additionally, the nanocatalyst was effectively utilized in synthesizing Ozagrel, a thromboxane A2 synthesis inhibitor used for treating noncardioembolic stroke patients. Remarkably, the catalyst demonstrated excellent reusability, maintaining high productivity across five consecutive cycles, underscoring its economic and sustainable potential for industrial applications.</p></div>","PeriodicalId":34151,"journal":{"name":"GIANT","volume":"19 ","pages":"Article 100326"},"PeriodicalIF":5.4,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666542524000900/pdfft?md5=f097ab25b6e055c7526d7c396e32c8dd&pid=1-s2.0-S2666542524000900-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141780836","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

3D printing of reprogrammable liquid crystal elastomers with exchangeable boronic ester bonds 具有可交换硼酸酯键的可再编程液晶弹性体的三维打印技术

IF 5.4 1区化学

GIANT Pub Date : 2024-07-31 DOI: 10.1016/j.giant.2024.100331

Xinzi Yu , Changyue Liu , Liqian Wang , Tianyu Li , Lingxin Yuan , Jiping Yang , Rui Xiao , Zhijian Wang

{"title":"3D printing of reprogrammable liquid crystal elastomers with exchangeable boronic ester bonds","authors":"Xinzi Yu , Changyue Liu , Liqian Wang , Tianyu Li , Lingxin Yuan , Jiping Yang , Rui Xiao , Zhijian Wang","doi":"10.1016/j.giant.2024.100331","DOIUrl":"10.1016/j.giant.2024.100331","url":null,"abstract":"<div><p>Liquid crystal elastomers (LCEs) are a kind of soft actuating materials with large reversible deformation ability, which can work as the “motor” to exhibit complex deformations and drive the locomotion of soft robots. The deformation of LCEs depends on the three-dimensional (3D) shape of whole structure and alignment patterns of mesogens. Various methods have been employed to fabricate the LCE structure with desired shapes and mesogen alignments. However, conventional 3D printed LCEs require continuous thermal energy input to maintain their actuated shapes. The LCEs cannot be reprocessed and reprogrammed once cured. Herein, we introduce dynamic boronic ester bonds into the ink, with which the printed LCE structures are capable of being reprogrammed from polydomain into monodomain state and vice versa. We further explore the effects of printing parameters and content of dynamic covalent bonds on the actuation performance and reprogramming ability. The actuated shape could be well predicted with finite element method. The dynamic printable LCEs developed here offer new strategy and large design space for LCE structures.</p></div>","PeriodicalId":34151,"journal":{"name":"GIANT","volume":"20 ","pages":"Article 100331"},"PeriodicalIF":5.4,"publicationDate":"2024-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S266654252400095X/pdfft?md5=c994d94a82f2721a28403c1b16aa4d93&pid=1-s2.0-S266654252400095X-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141963058","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Conformation-assisted solid-solid phase transition of LiTFSI electrolyte salt and the lithium ion coordination LiTFSI 电解质盐的构象辅助固固相变与锂离子配位

IF 5.4 1区化学

GIANT Pub Date : 2024-07-29 DOI: 10.1016/j.giant.2024.100330

Ziwei Lai , Donglei You , Wei Wei , Huiming Xiong

{"title":"Conformation-assisted solid-solid phase transition of LiTFSI electrolyte salt and the lithium ion coordination","authors":"Ziwei Lai , Donglei You , Wei Wei , Huiming Xiong","doi":"10.1016/j.giant.2024.100330","DOIUrl":"10.1016/j.giant.2024.100330","url":null,"abstract":"<div><p>Single crystal growth and characterization of the lithium bis(trifluoromethyl sulfonyl)imide (LiTFSI), the most common electrolyte salt for lithium-ion batteries, have been performed and succeeded in unraveling the atomic structures of its different crystalline phases. The structures of two crystalline phases (phase I: orthorhombic, <em>Pccn</em>; phase II: monoclinic, <em>P2<sub>1</sub>/c</em>) have been determined through temperature-dependent X-ray crystallography of the LiTFSI single crystal on heating, and the solid-solid phase transformation between phase I and phase II has been dictated. Interestingly, a conformational change of TFSI⁻ from <em>transoid</em> to <em>cisoid</em> has been discovered during the transition from phase I to phase II, which has been further confirmed by the temperature-dependent Raman spectroscopy. The coordination of Li⁺ with the TFSI⁻ ions of different conformations has been also elucidated in the polymorphic crystalline structures. The solid-solid phase transformation of the first-order leads to the cracking of the LiTFSI crystal, probably along the lithium-ion or the fluorine-rich layer in phase II. In the molten state, the coexistence of the <em>transoid</em> conformation and the <em>cisoid</em> conformation is found in the TFSI⁻ ions, affirming the recent observation in the concentrated non-crystalline state. This work is anticipated to shed light on the (de)solvation and the transport of lithium ions in complex fluids encompassing LiTFSI electrolyte solutions from the structural aspects.</p></div>","PeriodicalId":34151,"journal":{"name":"GIANT","volume":"20 ","pages":"Article 100330"},"PeriodicalIF":5.4,"publicationDate":"2024-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666542524000948/pdfft?md5=38487c3062ce15b1a2d2224328ea7048&pid=1-s2.0-S2666542524000948-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141931991","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

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