Energy & Environmental Materials最新文献_第9页

Molecular Engineering of Benzobisoxazole-Based Conjugated Polymers for High-Performance Organic Photodetectors and Fingerprint Image Sensors 用于高性能有机光电探测器和指纹图像传感器的苯并异噁唑基共轭聚合物的分子工程学研究

IF 13 2区材料科学

Energy & Environmental Materials Pub Date : 2024-07-24 DOI: 10.1002/eem2.12806

Cheol Shin, WonJo Jeong, Ezgi Darici Lee, Jong Baek Park, Hyungju Ahn, Seyeon Baek, Myeong In Kim, Dae Sung Chung, Kang-Il Seo, In Hwan Jung

{"title":"Molecular Engineering of Benzobisoxazole-Based Conjugated Polymers for High-Performance Organic Photodetectors and Fingerprint Image Sensors","authors":"Cheol Shin, WonJo Jeong, Ezgi Darici Lee, Jong Baek Park, Hyungju Ahn, Seyeon Baek, Myeong In Kim, Dae Sung Chung, Kang-Il Seo, In Hwan Jung","doi":"10.1002/eem2.12806","DOIUrl":"10.1002/eem2.12806","url":null,"abstract":"Various novel conjugated polymers (CPs) have been developed for organic photodetectors (OPDs), but their application to practical image sensors such as X-ray, R/G/B, and fingerprint sensors is rare. In this article, we report the entire process from the synthesis and molecular engineering of novel CPs to the development of OPDs and fingerprint image sensors. We synthesized six benzo[1,2-d:4,5-d']bis(oxazole) (BBO)-based CPs by modifying the alkyl side chains of the CPs. Several relationships between the molecular structure and the OPD performance were revealed, and increasing the number of linear octyl side chains on the conjugated backbone was the best way to improve Jph and reduce Jd in the OPDs. The optimized CP demonstrated promising OPD performance with a responsivity (R) of 0.22 A/W, specific detectivity (D*) of 1.05 × 1013 Jones at a bias of −1 V, rising/falling response time of 2.9/6.9 μs, and cut-off frequency (f-3dB) of 134 kHz under collimated 530 nm LED irradiation. Finally, a fingerprint image sensor was fabricated by stacking the POTB1-based OPD layer on the organic thin-film transistors (318 ppi). The image contrast caused by the valleys and ridges in the fingerprints was obtained as a digital signal.","PeriodicalId":11554,"journal":{"name":"Energy & Environmental Materials","volume":"8 1","pages":""},"PeriodicalIF":13.0,"publicationDate":"2024-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eem2.12806","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141785192","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Nanosheet-Doped Polymer Composites with High Intrinsic Piezoelectric Properties for Energy Harvesting 用于能量收集的具有高固有压电特性的纳米片掺杂聚合物复合材料

IF 13 2区材料科学

Energy & Environmental Materials Pub Date : 2024-07-21 DOI: 10.1002/eem2.12789

Kaihang Zhang, Jiaqi Lu, Xinyu Cai, Muhammad Naeem Shah, Jianhui Wu, Jie Li, Yifan Wu, Chi Zhang, Liangquan Xu, Haoze Kuang, Dinku Hazarika, Binghan Zhou, Zhuo Chen, Zhen Cao, Hao Jin, Shurong Dong, Yuhui Huang, Qilong Zhang, Yongjun Wu, Luigi Giuseppe Occhipinti, Tawfique Hasan, Jikui Luo

{"title":"Nanosheet-Doped Polymer Composites with High Intrinsic Piezoelectric Properties for Energy Harvesting","authors":"Kaihang Zhang, Jiaqi Lu, Xinyu Cai, Muhammad Naeem Shah, Jianhui Wu, Jie Li, Yifan Wu, Chi Zhang, Liangquan Xu, Haoze Kuang, Dinku Hazarika, Binghan Zhou, Zhuo Chen, Zhen Cao, Hao Jin, Shurong Dong, Yuhui Huang, Qilong Zhang, Yongjun Wu, Luigi Giuseppe Occhipinti, Tawfique Hasan, Jikui Luo","doi":"10.1002/eem2.12789","DOIUrl":"10.1002/eem2.12789","url":null,"abstract":"Few-layer nanosheets (NSs) of hexagonal boron nitride (h-BN) and molybdenum disulfide (MoS2) display notable piezoelectric properties. Yet, their integration into polymers typically yields non-piezoelectric composites due to NSs' random distribution. We introduce a facile method for fabricating intrinsic piezoelectric composites incorporated with NSs without electric poling. Our innovative process aligns NSs within polyvinyl alcohol polymer, leveraging ice-water interfacial tension, water crystallization thrust, and directional cross-linking during freezing. The resulting PE composites exhibit a maximum piezoelectric coefficient of up to 25.5–28.4 pC N−1, comparable to polyvinylidene difluoride (PVDF), with significant cost-efficiency, safety, and scalability advantages over conventional materials. Using this composite, we develop highly sensitive wearable pressure and strain sensors, and an ultrasound energy harvester. These sensors detect finger bending and differentiate between walking and running, while the harvester generates ~1.18 V/2.31 μA under 1 W cm−2 ultrasound input underwater. This universal method offers a novel manufacturing technique for piezoelectric composites, demonstrating remarkable effectiveness in synthesizing intrinsic piezoelectric composites based on 2D materials. Moreover, its potential extends to applications in wearable electronics and energy harvesting, promising significant advancements in these fields.","PeriodicalId":11554,"journal":{"name":"Energy & Environmental Materials","volume":"8 1","pages":""},"PeriodicalIF":13.0,"publicationDate":"2024-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eem2.12789","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141754060","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Unveiling the GeI2-Assisted Oriented Growth of Perovskite Crystallite for High-Performance Flexible Sn Perovskite Solar Cells 揭示 GeI2 辅助下的包晶石定向生长，实现高性能柔性锡包晶石太阳能电池

IF 13 2区材料科学

Energy & Environmental Materials Pub Date : 2024-07-15 DOI: 10.1002/eem2.12791

Huagui Lai, Selina Olthof, Shengqiang Ren, Radha K. Kothandaraman, Matthias Diethelm, Quentin Jeangros, Roland Hany, Ayodhya N. Tiwari, Dewei Zhao, Fan Fu

{"title":"Unveiling the GeI2-Assisted Oriented Growth of Perovskite Crystallite for High-Performance Flexible Sn Perovskite Solar Cells","authors":"Huagui Lai, Selina Olthof, Shengqiang Ren, Radha K. Kothandaraman, Matthias Diethelm, Quentin Jeangros, Roland Hany, Ayodhya N. Tiwari, Dewei Zhao, Fan Fu","doi":"10.1002/eem2.12791","DOIUrl":"10.1002/eem2.12791","url":null,"abstract":"Tin perovskites are emerging as promising alternatives to their lead-based counterparts for high-performance and flexible perovskite solar cells. However, their rapid crystallization often leads to inadequate film quality and poor device performance. In this study, the role of GeI2 as an additive is investigated for controlling the nucleation and crystallization processes of formamidinium tin triiodide (FASnI3). The findings reveal the preferential formation of a Ge-rich layer at the bottom of the perovskite film upon the introduction of GeI2. It is proposed that the initial formation of the Ge complex acts as a crystallization regulator, promoting oriented growth of subsequent FASnI3 crystals and enhancing overall crystallinity. Through the incorporation of an optimal amount of GeI2, flexible Sn perovskite solar cells with an efficiency of 10.8% were achieved. Furthermore, it was observed that the GeI2 additive ensures a remarkable shelf-life for the devices, with the rigid cells retaining 91% of their initial performance after more than 13 800 h of storage in an N2 gas environment. This study elucidates the mechanistic role of GeI2 in regulating the nucleation and crystallization process of tin perovskites, providing valuable insights into the significance of additive engineering for the development of high-performance flexible tin perovskite solar cells.","PeriodicalId":11554,"journal":{"name":"Energy & Environmental Materials","volume":"8 1","pages":""},"PeriodicalIF":13.0,"publicationDate":"2024-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eem2.12791","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141720233","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Enhanced Passivation Effect of Tunnel Oxide Prepared by Ozone-Gas Oxidation (OGO) for n-Type Polysilicon Passivated Contact (TOPCon) Solar Cells 臭氧-气体氧化（OGO）制备的隧道氧化物对 n 型多晶硅钝化接触（TOPCon）太阳能电池的增强钝化效果

IF 13 2区材料科学

Energy & Environmental Materials Pub Date : 2024-07-12 DOI: 10.1002/eem2.12795

Lei Yang, Yali Ou, Xiang Lv, Na Lin, Yuheng Zeng, Zechen Hu, Shuai Yuan, Jichun Ye, Xuegong Yu, Deren Yang

{"title":"Enhanced Passivation Effect of Tunnel Oxide Prepared by Ozone-Gas Oxidation (OGO) for n-Type Polysilicon Passivated Contact (TOPCon) Solar Cells","authors":"Lei Yang, Yali Ou, Xiang Lv, Na Lin, Yuheng Zeng, Zechen Hu, Shuai Yuan, Jichun Ye, Xuegong Yu, Deren Yang","doi":"10.1002/eem2.12795","DOIUrl":"10.1002/eem2.12795","url":null,"abstract":"Nowadays, a stack of heavily doped polysilicon (poly-Si) and tunnel oxide (SiOx) is widely employed to improve the passivation performance in n-type tunnel oxide passivated contact (TOPCon) silicon solar cells. In this case, it is critical to develop an in-line advanced fabrication process capable of producing high-quality tunnel SiOx. Herein, an in-line ozone-gas oxidation (OGO) process to prepare the tunnel SiOx is proposed to be applied in n-type TOPCon solar cell fabrication, which has obtained better performance compared with previously reported in-line plasma-assisted N2O oxidation (PANO) process. In order to explore the underlying mechanism, the electrical properties of the OGO and PANO tunnel SiOx are analyzed by deep-level transient spectroscopy technology. Notably, continuous interface states in the band gap are detected for OGO tunnel SiOx, with the interface state densities (Dit) of 1.2 × 1012–3.6 × 1012 cm−2 eV−1 distributed in Ev + (0.15–0.40) eV, which is significantly lower than PANO tunnel SiOx. Furthermore, X-ray photoelectron spectroscopy analysis indicate that the percentage of SiO2 (Si4+) in OGO tunnel SiOx is higher than which in PANO tunnel SiOx. Therefore, we ascribe the lower Dit to the good inhibitory effects on the formation of low-valent silicon oxides during the OGO process. In a nutshell, OGO tunnel SiOx has a great potential to be applied in n-type TOPCon silicon solar cell, which may be available for global photovoltaics industry.","PeriodicalId":11554,"journal":{"name":"Energy & Environmental Materials","volume":"8 1","pages":""},"PeriodicalIF":13.0,"publicationDate":"2024-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eem2.12795","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141654487","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Review on Soft Ionic Touch Point Sensors 软离子触点传感器综述

IF 13 2区材料科学

Energy & Environmental Materials Pub Date : 2024-07-12 DOI: 10.1002/eem2.12794

Gibeom Lee, Donghyun Lee, Gwang-Bum Im, Younghoon Lee

引用次数: 0

Antifouling Properties of Electrospun Polymeric Coatings Induced by Controlled Surface Morphology 受控表面形态诱导的电纺聚合物涂层的防污特性

IF 13 2区材料科学

Energy & Environmental Materials Pub Date : 2024-07-12 DOI: 10.1002/eem2.12773

Fabio L. Favrin, Lorenzo Zavagna, Matteo Sestini, Semih Esin, Bahareh Azimi, Massimiliano Labardi, Mario Milazzo, Giuseppe Gallone, Giovanna Batoni, Serena Danti

{"title":"Antifouling Properties of Electrospun Polymeric Coatings Induced by Controlled Surface Morphology","authors":"Fabio L. Favrin, Lorenzo Zavagna, Matteo Sestini, Semih Esin, Bahareh Azimi, Massimiliano Labardi, Mario Milazzo, Giuseppe Gallone, Giovanna Batoni, Serena Danti","doi":"10.1002/eem2.12773","DOIUrl":"10.1002/eem2.12773","url":null,"abstract":"Nosocomial infections affect implanted medical devices and greatly challenge their functional outcomes, becoming sometimes life threatening for the patients. Therefore, aggressive antibiotic therapies are administered, which often require the use of last-resort drugs, if the infection is caused by multi-drug-resistant bacteria. Reducing the risk of bacterial contamination of medical devices in the hospitals has thus become an emerging issue. Promising routes to control these infections are based on materials provided with intrinsic bactericidal properties (i.e., chemical action) and on the design of surface coatings able to limit bacteria adhesion and fouling phenomena (i.e., physical action), thus preventing bacterial biofilm formation. Here, we report the development and validation of coatings made of layer-by-layer deposition of electrospun poly(vinylidene fluoride-co-trifluoro ethylene) P(VDF-TrFE) fibers with controlled orientations, which ultimately gave rise to antifouling surfaces. The obtained 10-layer surface morphology with 90° orientation fibers was able to efficiently prevent the adhesion of bacteria, by establishing a superhydrophobic-like behavior compatible with the Cassie-Baxter regimen. Moreover, the results highlighted that surface wettability and bacteria adhesion could be controlled using fibers with diameter comparable to bacteria size (i.e., achievable via electrospinning process), by tuning the intra-fiber spacing, with relevant implications in the future design of biomedical surface coatings.","PeriodicalId":11554,"journal":{"name":"Energy & Environmental Materials","volume":"7 6","pages":""},"PeriodicalIF":13.0,"publicationDate":"2024-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eem2.12773","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141655082","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Analysis of the Minute Differences between the Internal Structures of Green-Emitting Quantum Dots Via Synchrotron-Based X-Ray Photoelectron Spectroscopy 通过同步辐射 X 射线光电子能谱分析绿色发光量子点内部结构的细微差别

IF 13 2区材料科学

Energy & Environmental Materials Pub Date : 2024-07-12 DOI: 10.1002/eem2.12798

Dong-Jin Yun, Nayoun Won, Young Mo Sung, Tae-Gon Kim, Taekhoon Kim, Ane Etxebarria, Kyungjae Lee, SooHwan Sul, Hyokeun Park, SungJun Park, Jung-Hwa Kim, Shinae Jun, Ethan Crumlin

{"title":"Analysis of the Minute Differences between the Internal Structures of Green-Emitting Quantum Dots Via Synchrotron-Based X-Ray Photoelectron Spectroscopy","authors":"Dong-Jin Yun, Nayoun Won, Young Mo Sung, Tae-Gon Kim, Taekhoon Kim, Ane Etxebarria, Kyungjae Lee, SooHwan Sul, Hyokeun Park, SungJun Park, Jung-Hwa Kim, Shinae Jun, Ethan Crumlin","doi":"10.1002/eem2.12798","DOIUrl":"10.1002/eem2.12798","url":null,"abstract":"The development of an analytical method for determining the properties of quantum dots (QDs) is crucial for improving the optical performance of QD-based displays. Therefore, synchrotron-based X-ray photoelectron spectroscopy (XPS) is designed here to accurately characterize the chemical and structural differences between different QDs. This method enables the determination of the reason for the minimal differences between the optical properties of different QDs depending on the synthesis process, which is difficult to determine using conventional methods alone. Combined with model simulations, the XPS spectra obtained at different photon energies reveal the internal structures and chemical-state distributions of the QDs. In particular, the QD synthesized under optimal conditions demonstrates a relatively lower degree of oxidation of the core and more uniformly stacked ZnSe/ZnS shell layers. The internal structures and chemical-state distributions of QDs are closely related to their optical properties. Finally, the synchrotron-based XPS proposed here can be applied to compare nearly equivalent QDs with slightly different optical properties.","PeriodicalId":11554,"journal":{"name":"Energy & Environmental Materials","volume":"8 1","pages":""},"PeriodicalIF":13.0,"publicationDate":"2024-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eem2.12798","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141652587","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Biomimetic Alveoli-in-Lung-Structured Electrode: Robustly Anchored Tungsten Oxide Quantum Dot on Ti3C2 MXene for Multifunctional Sodium-Ion-Based Electrochromic Devices 仿生肺泡-肺内结构电极：在 Ti3C2 MXene 上牢固锚定氧化钨量子点，用于基于钠离子的多功能电致变色器件

IF 13 2区材料科学

Energy & Environmental Materials Pub Date : 2024-07-12 DOI: 10.1002/eem2.12790

Qi Zhao, Jinkai Wang, Jianguo Sun, Changyuan Bao, Xue Chen, Junhui Wang, Yu Liu, Usha Bhat, Chin Ho Kirk, Yanfeng Gao, John Wang

{"title":"A Biomimetic Alveoli-in-Lung-Structured Electrode: Robustly Anchored Tungsten Oxide Quantum Dot on Ti3C2 MXene for Multifunctional Sodium-Ion-Based Electrochromic Devices","authors":"Qi Zhao, Jinkai Wang, Jianguo Sun, Changyuan Bao, Xue Chen, Junhui Wang, Yu Liu, Usha Bhat, Chin Ho Kirk, Yanfeng Gao, John Wang","doi":"10.1002/eem2.12790","DOIUrl":"10.1002/eem2.12790","url":null,"abstract":"Sodium-ion-based electrochromic device (SECD) has been identified as an appealing cost-effective alternative of lithium-based counterparts, only if it can address the challenges in association with the inadequate electrochromic performance. In this regard, the quantized strategy is a particularly promising approach owing to the large surface-to-volume ratio and high reaction activity. However, quantum dots inevitably suffer from volume changes and undesired aggregation during electrochemical cycling. Herein, bioinspired from the robust connection of alveoli in lung, we propose a stable electrode, where WO3 quantum dots (WQDs) are robustly anchored on Ti3C2 MXene through the strong chemical bonds of W-O-Ti. Theoretical results reveal the fundamental mechanism of the volume changes within WQDs and the dynamic diffusion process of sodium ions. The WQD@MXene electrodes exhibit a nearly twofold enhancement in cycling performance (1000 vs 500 cycles), coloration speed (3.2 vs 6.0 s), and areal capacity (87.5 vs 43.9 mAh m−2 at 0.1 mA cm−2), compared to those of the pristine WQD electrode. As a proof-of-concept demonstration, a smart house system integrated with SECDs demonstrates a “3-in-1” device, enabling a combination of energy-saving, energy storage, and display functionalities. The present work significantly advances the versatile applications of cost-effective electrochromic electronics in interdisciplinary.","PeriodicalId":11554,"journal":{"name":"Energy & Environmental Materials","volume":"8 1","pages":""},"PeriodicalIF":13.0,"publicationDate":"2024-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eem2.12790","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141653317","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Superior Anodic Lithium Storage in Core–Shell Heterostructures Composed of Carbon Nanotubes and Schiff-Base Covalent Organic Frameworks 由碳纳米管和希夫碱共价有机框架组成的核壳异质结构具有卓越的阳极储锂性能

IF 13 2区材料科学

Energy & Environmental Materials Pub Date : 2024-07-09 DOI: 10.1002/eem2.12797

Nan Jiang, Mengpei Qi, Yalong Jiang, Yin Fan, Shiwei Jin, Yingkui Yang

{"title":"Superior Anodic Lithium Storage in Core–Shell Heterostructures Composed of Carbon Nanotubes and Schiff-Base Covalent Organic Frameworks","authors":"Nan Jiang, Mengpei Qi, Yalong Jiang, Yin Fan, Shiwei Jin, Yingkui Yang","doi":"10.1002/eem2.12797","DOIUrl":"10.1002/eem2.12797","url":null,"abstract":"Covalent organic frameworks (COFs) after undergoing the superlithiation process promise high-capacity anodes while suffering from sluggish reaction kinetics and low electrochemical utilization of redox-active sites. Herein, integrating carbon nanotubes (CNTs) with imine-linked covalent organic frameworks (COFs) was rationally executed by in-situ Schiff-base condensation between 1,1′-biphenyl]-3,3′,5,5′-tetracarbaldehyde and 1,4-diaminobenzene in the presence of CNTs to produce core–shell heterostructured composites (CNT@COF). Accordingly, the redox-active shell of COF nanoparticles around one-dimensional conductive CNTs synergistically creates robust three-dimensional hybrid architectures with high specific surface area, thus promoting electron transport and affording abundant active functional groups accessible for electrochemical utilization throughout the whole electrode. Remarkably, upon the full activation with a superlithiation process, the as-fabricated CNT@COF anode achieves a specific capacity of 2324 mAh g−1, which is the highest specific capacity among organic electrode materials reported so far. Meanwhile, the superior rate capability and excellent cycling stability are also obtained. The redox reaction mechanisms for the COF moiety were further revealed by Fourier-transform infrared spectroscopy in conjunction with X-ray photoelectron spectroscopy, involving the reversible redox reactions between lithium ions and C=N groups and gradual electrochemical activation of the unsaturated C=C bonds within COFs.","PeriodicalId":11554,"journal":{"name":"Energy & Environmental Materials","volume":"7 6","pages":""},"PeriodicalIF":13.0,"publicationDate":"2024-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eem2.12797","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141569273","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Tailoring Electrode–Electrolyte Interface Using an Electron-Deficient Borate-Based Additive in MgTFSI2-MgCl2/DME Electrolyte for Rechargeable Magnesium Batteries 在可充电镁电池的 MgTFSI2-MgCl2/DME 电解液中使用电子缺陷型硼酸盐基添加剂定制电极-电解液界面

IF 13 2区材料科学

Energy & Environmental Materials Pub Date : 2024-07-06 DOI: 10.1002/eem2.12792

Haiyan Fan, Xinxin Zhang, Jianhua Xiao, Wenjie Chen, Qiyuan Lin, Zi Shyun Ng, Yitao Lin, Yi Su, Ludi Pan, Yipeng Su, Shuaiyang Ren, Haowen Liu, Xuanzhang Li, Yuegang Zhang

{"title":"Tailoring Electrode–Electrolyte Interface Using an Electron-Deficient Borate-Based Additive in MgTFSI2-MgCl2/DME Electrolyte for Rechargeable Magnesium Batteries","authors":"Haiyan Fan, Xinxin Zhang, Jianhua Xiao, Wenjie Chen, Qiyuan Lin, Zi Shyun Ng, Yitao Lin, Yi Su, Ludi Pan, Yipeng Su, Shuaiyang Ren, Haowen Liu, Xuanzhang Li, Yuegang Zhang","doi":"10.1002/eem2.12792","DOIUrl":"10.1002/eem2.12792","url":null,"abstract":"Rechargeable magnesium metal batteries need an electrolyte that forms a stable and ionically conductive solid electrolyte interphase (SEI) on the anodes. Here, we used molecular dynamic simulation, density functional theory calculation, and X-ray photoelectron spectroscopy analysis to investigate the solvation structures and SEI compositions in electrolytes consisting of dual-salts, magnesium bis(trifluoromethanesulfonyl)imide (MgTFSI2), and MgCl2, with different additives in 1,2-dimethoxyethane (DME) solvent. We found that the formed [Mg3(μ-Cl)4(DME)mTFSI2] (m = 3, 5) inner-shell solvation clusters in MgTFSI2-MgCl2/DME electrolyte could easily decompose and form a MgO- and MgF2-rich SEI. Such electron-rich inorganic species in the SEI, especially MgF2, turned out to be detrimental for Mg plating/stripping. To reduce the MgF2 and MgO contents in SEI, we introduce an electron-deficient tri(2,2,2-trifluoroethyl) borate (TFEB) additive in the electrolyte. Mg//Mg cells using the MgTFSI2-MgCl2/DME-TFEB electrolyte could cycle stably for over 400 h with a small polarization voltage of ~150 mV. Even with the presence of 800 ppm H2O, the electrolyte with TFEB additive could still preserve its good electrochemical performance. The optimized electrolyte also enabled stable cycling and high-rate capability for Mg//Mo6S8 and Mg//CuS full cells, showing great potential for future applications.","PeriodicalId":11554,"journal":{"name":"Energy & Environmental Materials","volume":"7 6","pages":""},"PeriodicalIF":13.0,"publicationDate":"2024-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eem2.12792","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141586494","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0