eScience最新文献_第5页

Connecting adjacent active layers with structural pillars for high-performance Li-organic batteries 用结构柱连接相邻有源层，用于高性能有机锂电池

IF 36.6

eScience Pub Date : 2025-11-01 Epub Date: 2025-03-18 DOI: 10.1016/j.esci.2025.100401

Kun Zhang , You Pan , Xingyu Guo , Jifeng Wang , Chuanfa Li , Jiaxin Li , Meng Liao , Yi Jiang , Wenjun Li , Kailin Zhang , Qian Ye , Longmei Ma , Xiaocheng Gong , Kai Li , Ying Wang , Yue Gao , Xin-Gao Gong , Huisheng Peng , Bingjie Wang

{"title":"Connecting adjacent active layers with structural pillars for high-performance Li-organic batteries","authors":"Kun Zhang , You Pan , Xingyu Guo , Jifeng Wang , Chuanfa Li , Jiaxin Li , Meng Liao , Yi Jiang , Wenjun Li , Kailin Zhang , Qian Ye , Longmei Ma , Xiaocheng Gong , Kai Li , Ying Wang , Yue Gao , Xin-Gao Gong , Huisheng Peng , Bingjie Wang","doi":"10.1016/j.esci.2025.100401","DOIUrl":"10.1016/j.esci.2025.100401","url":null,"abstract":"<div><div>Organic electrode materials with the versatility of molecular engineering emerge as promising alternatives to construct high-performance batteries. However, a weak binding force between active layers leads to poor structural stability accompanied by a multi-electron redox, thus hindering the construction of practical devices based on organic materials. Herein, we report a structural engineering approach to improve the structural stability of organic molecules by pre-intercalating potassium ions (K<sup>+</sup>) as pillars into the adjacent rhodizonate (C<sub>6</sub>O<sub>6</sub><sup>2−</sup>) layers. This enhanced binding, with increased coordination sites of K-O, effectively prevents the exfoliation of C<sub>6</sub>O<sub>6</sub><sup>2−</sup> layers and provides stable diffusion channels for lithium ions (Li<sup>+</sup>). The resulting batteries exhibit accelerated reaction kinetics and enhanced Li<sup>+</sup> diffusion, leading to a high energy density of 722 Wh kg<sup>−1</sup> (based on active materials) and reversible capacity of 315 mAh g<sup>−1</sup> at 1.0 C, with a capacity retention of 225 mAh g<sup>−1</sup> after 500 cycles. In addition, by virtue of the flexible nature, a Li-K<sub>2</sub>C<sub>6</sub>O<sub>6</sub> battery has been made into flexible fibers for next-generation wearable systems, offering a new avenue for realizing practical devices based on organic single molecules. This work presents a general and efficient strategy to unlock theoretically high-performance organic electrode materials for advanced Li-organic batteries.</div></div>","PeriodicalId":100489,"journal":{"name":"eScience","volume":"5 6","pages":"Article 100401"},"PeriodicalIF":36.6,"publicationDate":"2025-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145366081","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Multifunctional robotic electrofluid for soft fluidic actuation 用于软流体驱动的多功能机器人电流体

IF 36.6

eScience Pub Date : 2025-11-01 Epub Date: 2025-07-04 DOI: 10.1016/j.esci.2025.100448

Wei Tang , Pingan Zhu , Yu Hu, Xinyu Guo, Yonghao Wang, Kecheng Qin, Yiding Zhong, Qincheng Sheng, Huxiu Xu, Zhaoyang Li, Huayong Yang, Jun Zou

{"title":"Multifunctional robotic electrofluid for soft fluidic actuation","authors":"Wei Tang , Pingan Zhu , Yu Hu, Xinyu Guo, Yonghao Wang, Kecheng Qin, Yiding Zhong, Qincheng Sheng, Huxiu Xu, Zhaoyang Li, Huayong Yang, Jun Zou","doi":"10.1016/j.esci.2025.100448","DOIUrl":"10.1016/j.esci.2025.100448","url":null,"abstract":"<div><div>Like the vital role that multifunctional biological fluids play in living organisms, leveraging fluid multifunctionality offers a promising approach to enhance system capabilities without overcomplicating the hardware. However, creating a multifunctional fluid for soft fluidic systems remains a persistent challenge. Here, we report a multifunctional electrofluid that integrates actuation, sensing, self-healing, damage detection, and triboelectricity powering for the various function requirements of soft fluidic systems. We demonstrate that actuation, sensing, and damage detection can be achieved by activating electrons in the working fluid, and the system enables underwater self-healing through the incorporation of water-reactive self-healing agents into the working fluid. In addition, we achieve the fluid flow by transporting the electrons gathered by the triboelectric nanogenerator into the fluid, thereby making the system become a triboelectricity-powered machine. The fluid module developed based on electrofluids is self-contained and plug-and-play, providing good convenience for rapid construction of soft fluidic systems. We validate the effectiveness of the electronic fluids through soft robotic fish, soft octobot, and wearable devices, demonstrating that the proposed fluid enables multiple functions of the system without added weight or volume. As such, the proposed electrofluid provides a promising platform to achieve high integration and lightweight of multifunctional soft fluidic actuation by expanding the functionalities of the fluid itself.</div></div>","PeriodicalId":100489,"journal":{"name":"eScience","volume":"5 6","pages":"Article 100448"},"PeriodicalIF":36.6,"publicationDate":"2025-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145366118","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

External field-assisted catalysis 外场辅助催化

IF 36.6

eScience Pub Date : 2025-11-01 Epub Date: 2025-03-01 DOI: 10.1016/j.esci.2025.100398

Linbo Jiang, Lintao Jiang, Xu Luo, Ruidong Li, Qingqu Zhou, Weihao Zeng, Jun Yu, Lei Chen, Shichun Mu

{"title":"External field-assisted catalysis","authors":"Linbo Jiang, Lintao Jiang, Xu Luo, Ruidong Li, Qingqu Zhou, Weihao Zeng, Jun Yu, Lei Chen, Shichun Mu","doi":"10.1016/j.esci.2025.100398","DOIUrl":"10.1016/j.esci.2025.100398","url":null,"abstract":"<div><div>In recent years, substantial effort has been dedicated to improving the intrinsic catalytic activity of catalysts through structural modification, component regulation, and chemical state optimization. However, complexity in the design and construction of catalysts, and the possibility of encountering performance ceilings, may constrain their widespread use. Currently, the introduction of <em>in situ</em> external fields, such as force, electric, magnetic, acoustic, light, and thermal fields, is an attractive approach to enhance the catalytic efficiency of catalysts. Such <em>in situ</em> physical fields feature continuity, reversibility, and controllability, and can exert external force or energy on catalysts, thereby affecting their microscopic structures and electron arrangements, accelerating their mass transfer and reaction kinetics. Mutual coupling and conversion among different external fields are also worth exploring. Various <em>in situ</em> external field effects work in multifaceted ways to promote catalysis in energy-environment systems by optimizing mass/energy transfer processes, modifying structures, and accelerating catalytic reaction kinetics, thereby significantly improving the catalytic properties of materials. This review summarizes and analyzes the latest developments in external field-assisted methods for boosting catalyst performance. The external field effect, related catalysis mechanism, and external field-enhanced catalysis are highlighted, and we discuss future challenges, countermeasures, and opportunities for external field-assisted catalysis and beyond.</div></div>","PeriodicalId":100489,"journal":{"name":"eScience","volume":"5 6","pages":"Article 100398"},"PeriodicalIF":36.6,"publicationDate":"2025-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145340505","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Li-rich oxide micro-bricks with exposed {010} planes to construct ultrahigh-compaction hierarchical cathodes for Li-ion batteries 具有暴露{010}平面的富锂氧化物微砖用于构建锂离子电池的超高压实分层阴极

IF 36.6

eScience Pub Date : 2025-09-01 Epub Date: 2025-04-03 DOI: 10.1016/j.esci.2025.100405

Yongjian Li , Tong Sun , Chenxing Yang , Yuefeng Su , Cai Liu , Xinyu Zhu , Yihong Wang , Siyuan Ma , Xinyu Wang , Yizhi Zhai , Wenlong Kang , Lai Chen , Meng Wang , Liang Zhang , Bin Wang , Qing Huang , Yibiao Guan , Feng Wu , Ning Li

{"title":"Li-rich oxide micro-bricks with exposed {010} planes to construct ultrahigh-compaction hierarchical cathodes for Li-ion batteries","authors":"Yongjian Li , Tong Sun , Chenxing Yang , Yuefeng Su , Cai Liu , Xinyu Zhu , Yihong Wang , Siyuan Ma , Xinyu Wang , Yizhi Zhai , Wenlong Kang , Lai Chen , Meng Wang , Liang Zhang , Bin Wang , Qing Huang , Yibiao Guan , Feng Wu , Ning Li","doi":"10.1016/j.esci.2025.100405","DOIUrl":"10.1016/j.esci.2025.100405","url":null,"abstract":"<div><div>Although lithium-rich manganese-based (LRM) cathode materials have high capacity (> 250 mAh g<sup>−1</sup>) due to their multi-electron redox mechanisms and offer cost advantages due to their high Mn content, challenges remain before they can achieve commercialization as replacements for lithium cobalt oxides which have high volumetric energy density. Here, we construct a hierarchically structured LRM cathode, featuring primary micro-bricks and abundant exposure of lithium-ion active transport facets ({010} planes). Benefiting from these densely packed bricks and rapid lithium-ion active planes, the hierarchical material achieves an optimal compaction density of 3.4 g cm<sup>−3</sup> and an ultrahigh volumetric energy density of 3431.0 Wh L<sup>−1</sup>, which is the highest performance level to date. Advanced characterizations, including hard X-ray absorption spectra and wide-angle X-ray scattering spectra, combined with density functional theory calculations, demonstrate that the hierarchical material shows a highly reversible charge compensation process and low-strain structural evolution. In addition, when the material has appropriate Li/Ni intermixing, it is not prone to shearing or sliding along the two-dimensional lithium-ion diffusion planes, which promotes robust architectural stability under high-pressure calendering and long-term cycling. This work should promote the development of advanced cathode materials for rechargeable batteries with high volumetric energy density.</div></div>","PeriodicalId":100489,"journal":{"name":"eScience","volume":"5 5","pages":"Article 100405"},"PeriodicalIF":36.6,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144890910","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Adsorption-attraction electrolyte addressing anion-deficient interface for lithium metal batteries 锂金属电池阴离子缺乏界面的吸附-吸引电解质

IF 36.6

eScience Pub Date : 2025-09-01 Epub Date: 2025-03-08 DOI: 10.1016/j.esci.2025.100399

Pengbin Lai , Yaqi Zhang , Junhao Wang , Minghui Chen , Xinyu Li , Xiaodie Deng , Qichen Chen , Boyang Huang , Chaolun Gan , Yeguo Zou , Yu Qiao , Peng Zhang , Jinbao Zhao

{"title":"Adsorption-attraction electrolyte addressing anion-deficient interface for lithium metal batteries","authors":"Pengbin Lai , Yaqi Zhang , Junhao Wang , Minghui Chen , Xinyu Li , Xiaodie Deng , Qichen Chen , Boyang Huang , Chaolun Gan , Yeguo Zou , Yu Qiao , Peng Zhang , Jinbao Zhao","doi":"10.1016/j.esci.2025.100399","DOIUrl":"10.1016/j.esci.2025.100399","url":null,"abstract":"<div><div>Constructing an optimal solid–electrolyte interphase (SEI) through electrolyte strategies is an effective approach to suppress lithium dendrites and improve deposition/stripping reversibility. Specifically, increasing the proportion of anion coordination in the inner Li<sup>+</sup> solvation sheath promotes the formation of an anion-derived SEI that features a high content of inorganic components favoring Li<sup>+</sup> diffusion. However, whether this anion-rich structure can persist during cycling has not been dynamically investigated. In this work, we not only construct a favorable solvation structure but also study its evolution in both bulk and interface regions across varying temperatures. Additionally, we employ the unique “adsorption-attraction” mechanism of trifluoromethoxybenzene (PhOCF<sub>3</sub>) solvent to inhibit the undesirable transition from an “anion-rich” to “anion-deficient” structure at the anode interface, which is confirmed by 2D NMR and <em>in situ</em> infrared spectroscopy. In summary, this work explores the solvation structure in depth and proposes new perspectives on designing electrolytes for lithium metal batteries.</div></div>","PeriodicalId":100489,"journal":{"name":"eScience","volume":"5 5","pages":"Article 100399"},"PeriodicalIF":36.6,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144890909","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Advanced implantable energy storage for powering medical devices 为医疗设备供电的先进植入式能量存储

IF 36.6

eScience Pub Date : 2025-09-01 Epub Date: 2025-04-18 DOI: 10.1016/j.esci.2025.100409

Shasha Wang , Leqian Wei , Fujun Wang , Lu Wang , Jifu Mao

{"title":"Advanced implantable energy storage for powering medical devices","authors":"Shasha Wang , Leqian Wei , Fujun Wang , Lu Wang , Jifu Mao","doi":"10.1016/j.esci.2025.100409","DOIUrl":"10.1016/j.esci.2025.100409","url":null,"abstract":"<div><div>Implantable electronic medical devices (IEMDs) are revolutionary advancements in healthcare, enabling continuous health monitoring and disease treatments. To support their further development, IESDs that include supercapacitors (SCs) and batteries are now garnering intensive worldwide research efforts. In this review, we discuss and analyze the research advancements and challenges associated with batteries and SCs in the realm of IESDs. First, we summarize the main components of IESDs, including electrodes, electrolytes, and encapsulation materials. Subsequently, we elucidate the main application scenarios of multifunctional energy storage devices, specifically biosafe, stretchable/self-healing, biodegradable, miniaturized, injectable, and edible IESDs. We then summarize research progress to date on the integration of IESDs with energy harvesters and wireless charging. State-of-the-art studies of IESDs categorized by human organ systems are covered in depth, including cardiovascular, nervous, gastrointestinal, musculoskeletal, vision, and systemic recording and stimulation. We close by briefly outlining the challenges and future prospects for IESDs.</div></div>","PeriodicalId":100489,"journal":{"name":"eScience","volume":"5 5","pages":"Article 100409"},"PeriodicalIF":36.6,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144887426","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Precise Pt-skin manipulation of strain and ligand effects for oxygen reduction 精确的Pt-skin操作应变和配体对氧还原的影响

IF 36.6

eScience Pub Date : 2025-09-01 Epub Date: 2025-02-26 DOI: 10.1016/j.esci.2025.100396

Yizhe Chen , Zeyu Jin , Jialin Sun , Shengli Chen , Jiujun Zhang , Shiming Zhang

{"title":"Precise Pt-skin manipulation of strain and ligand effects for oxygen reduction","authors":"Yizhe Chen , Zeyu Jin , Jialin Sun , Shengli Chen , Jiujun Zhang , Shiming Zhang","doi":"10.1016/j.esci.2025.100396","DOIUrl":"10.1016/j.esci.2025.100396","url":null,"abstract":"<div><div>Nanostructured platinum (Pt)-skin alloys are promising electrocatalysts for oxygen reduction reaction (ORR) due to their tunable strain and ligand effects which essentially regulate the surface electronic structures. In addition to the chemical nature of alloying elements, the layer numbers of Pt-skin crucially determine the strain and ligand effects. So far, the effects of Pt-skin layer numbers have been generally investigated through vapor deposition on bulk metals and alloys with extended surfaces, while the precise Pt-skin control of nanostructured alloy electrocatalysts in wet chemical synthesis remains fairly challenging. Herein, we develop a Pt-skin engineering strategy to construct a family of dendrite-like porous PtCu@Pt<sub>nL</sub> nanospheres (NSs) with precisely controlled Pt-skin layers by adjusting the reducibility of Cu ions. Density functional theory calculations and X-ray photoelectron spectroscopy-based valence band spectra results indicate a concave parabolic trend of <em>d</em>-band center with varying the Pt-skin layer from 0 to 5, jointly resulting from the skin layer-dependent electron transfer numbers and compression strain. The two-layer Pt-skin alloy, PtCu@Pt<sub>2L</sub> NS, is identified to have the lowest <em>d</em>-band center and therefore locates at the summit of ORR activity volcano. Accordingly, this carbon supported PtCu@Pt<sub>2L</sub> NSs catalyst achieves excellent ORR electrocatalysis in H<sub>2</sub>–O<sub>2</sub> proton exchange membrane fuel cells.</div></div>","PeriodicalId":100489,"journal":{"name":"eScience","volume":"5 5","pages":"Article 100396"},"PeriodicalIF":36.6,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144887427","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Game changers: scavenging materials for nonaqueous rechargeable battery applications 游戏改变者：非水可充电电池应用的清除材料

IF 36.6

eScience Pub Date : 2025-09-01 Epub Date: 2025-04-30 DOI: 10.1016/j.esci.2025.100411

Xing Chen , Huanrui Zhang , Cizhen Luo , Chenhui Gao , Chenghao Sun , Rongxian Wu , Yifan Gong , Pengzhou Mu , Qingfu Wang , Guanglei Cui

{"title":"Game changers: scavenging materials for nonaqueous rechargeable battery applications","authors":"Xing Chen , Huanrui Zhang , Cizhen Luo , Chenhui Gao , Chenghao Sun , Rongxian Wu , Yifan Gong , Pengzhou Mu , Qingfu Wang , Guanglei Cui","doi":"10.1016/j.esci.2025.100411","DOIUrl":"10.1016/j.esci.2025.100411","url":null,"abstract":"<div><div>Many potentially harmful reactive species are either present in nonaqueous rechargeable batteries or generated during their operation, with very negative effects on battery performance and/or safety. Scavenging materials have emerged as game changers, capable of directly eliminating and reducing the negative impact rendered by detrimental reactive species and thereby significantly improving battery performance and/or safety. This discussion introduces the origin of harmful species such as water and hydrofluoric acid, phosphorus pentafluoride, metal dendrites, combustion free radicals, active oxygen species and free radicals, as well as gaseous side products, and their adverse effects on battery performance and/or safety. We then describe and discuss scavenging materials having various structural characteristics and reaction chemistries with detrimental reactive species, as well as their positive role on battery performance and/or safety with respect to prominent nonaqueous rechargeable batteries, including lithium, sodium, zinc, and magnesium batteries. In addition, we outline the limitations of scavenging materials and the analysis techniques used in scavenging chemistry. The paper closes by offering perspectives on future development directions for scavenging chemistries in the realm of nonaqueous rechargeable battery applications. This comprehensive discussion will help to stimulate further advancements in novel scavenging materials for use in nonaqueous rechargeable battery applications.</div></div>","PeriodicalId":100489,"journal":{"name":"eScience","volume":"5 5","pages":"Article 100411"},"PeriodicalIF":36.6,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144887425","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Pulsed laser-tuned ruthenium@carbon interface for self-powered hydrogen production via zinc–hydrazine battery coupled hybrid electrolysis 脉冲激光调谐ruthenium@carbon接口，通过锌-肼电池耦合混合电解自供电制氢

IF 36.6

eScience Pub Date : 2025-09-01 Epub Date: 2025-04-11 DOI: 10.1016/j.esci.2025.100408

Huieun Ahn , Raja Arumugam Senthil , Sieon Jung , Anuj Kumar , Mohd Ubaidullah , Myong Yong Choi

{"title":"Pulsed laser-tuned ruthenium@carbon interface for self-powered hydrogen production via zinc–hydrazine battery coupled hybrid electrolysis","authors":"Huieun Ahn , Raja Arumugam Senthil , Sieon Jung , Anuj Kumar , Mohd Ubaidullah , Myong Yong Choi","doi":"10.1016/j.esci.2025.100408","DOIUrl":"10.1016/j.esci.2025.100408","url":null,"abstract":"<div><div>Herein, we report the synthesis of selectively face-centered cubic structured ruthenium nanospheres covered in graphitic carbon (denoted as Ru@C) using an effective and innovative pulsed laser ablation in liquid strategy. The Ru@C‒200 catalyst exhibited a low overpotential of 48 mV for hydrogen evolution reaction (HER) and an ultralow oxidation potential of −8 mV (vs. reversible hydrogen electrode) for hydrazine oxidation reaction (HzOR) at 10 mA cm<sup>−2</sup>, maintaining long-term durability for over 100 h, demonstrating its dual-functional activity. This performance was attributed to the robust synergistic coupling between the Ru core and C shell, as confirmed by <em>in situ</em> electrochemical studies and density functional theory investigations. As a result, overall hydrazine splitting (OHzS) in the Ru@C‒200||Ru@C‒200 system requires only low cell voltages of 0.11 and 0.70 V at 10 and 100 mA cm<sup>−2</sup>, respectively. Moreover, a rechargeable zinc–hydrazine (Zn–Hz) battery, fabricated using the Ru@C‒200 catalyst as the cathode and Zn foil as the anode, exhibited a high energy efficiency of 90% and efficient H<sub>2</sub> production, validating its remarkable ability for practical applications. Notably, coupling Zn–Hz battery with OHzS system encourages self-powered H<sub>2</sub> production. This study provides potential guidance for engineering robust electrocatalysts for large-scale H<sub>2</sub> production while purifying hydrazine-containing industrial sewage.</div></div>","PeriodicalId":100489,"journal":{"name":"eScience","volume":"5 5","pages":"Article 100408"},"PeriodicalIF":36.6,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144890862","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Bridging graphene for films with superior mechanical and electrical performance for electromagnetic interference shielding 桥接石墨烯薄膜具有优越的机械和电气性能，用于电磁干扰屏蔽

IF 36.6

eScience Pub Date : 2025-09-01 Epub Date: 2025-04-10 DOI: 10.1016/j.esci.2025.100407

Jiawen Zhang , Tianqi Xu , Ling Ding , Jinpeng Ji , Jianxin Geng , Huynh Thien Ngo , Ke Zhou , Xiankai Chen , Fengxia Geng

{"title":"Bridging graphene for films with superior mechanical and electrical performance for electromagnetic interference shielding","authors":"Jiawen Zhang , Tianqi Xu , Ling Ding , Jinpeng Ji , Jianxin Geng , Huynh Thien Ngo , Ke Zhou , Xiankai Chen , Fengxia Geng","doi":"10.1016/j.esci.2025.100407","DOIUrl":"10.1016/j.esci.2025.100407","url":null,"abstract":"<div><div>Macroscopic films assembled from graphene sheets could be ideal for lightweight and flexible electromagnetic interference shielding applications if the excellent mechanical strength and electrical conductivity of individual graphene can be replicated on the macroscale. However, in practice, a large performance gap remains between individual graphene and graphene-based macroscopic films. In this work, we report macroscopic graphene-based films with high mechanical strength and electrical conductivity (1.70 ± 0.05 GPa and 1170 ± 60 S cm<sup>−1</sup>) obtained by introducing a covalent conjugating aromatic amide group to bridge graphene edges. The bridging was achieved by reacting a doctor-bladed GO film with 1,2,4,5-benzenetetraamine hydrochloride followed by chemical reduction. Impact load tests demonstrated efficient stress transfer in these films, with stress spread uniformly well beyond the impact area. This is in sharp contrast to previously reported films, which showed the immediate initiation of cracks followed by crack extension in random directions. Our conducting films achieved a shielding effectiveness of 114.1 dB for a 120 μm thick film, and the specific shielding effectiveness was calculated to be 67.9 dB cm<sup>3</sup> g<sup>−1</sup>, which significantly exceeds those of currently known shielding materials as well as graphene films synthesized under similar conditions without thermal annealing. Owing to the graphene films’ mechanical robustness, the shielding performance was maintained even after repeated folding.</div></div>","PeriodicalId":100489,"journal":{"name":"eScience","volume":"5 5","pages":"Article 100407"},"PeriodicalIF":36.6,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144890863","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0