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Ultrasensitive Chemiresistive Gas Sensors Based on Dual-Mesoporous Zinc Stannate Composites for Room Temperature Rice Quality Monitoring
IF 26.6 1区 材料科学 Q1 Engineering Pub Date : 2025-01-24 DOI: 10.1007/s40820-024-01645-5
Jinyong Xu, Xuxiong Fan, Kaichun Xu, Kaidi Wu, Hanlin Liao, Chao Zhang

The integration of dual-mesoporous structures, the construction of heterojunctions, and the incorporation of highly concentrated oxygen vacancies are pivotal for advancing metal oxide-based gas sensors. Nonetheless, achieving an optimal design that simultaneously combines mesoporous structures, precise heterojunction modulation, and controlled oxygen vacancies through a one-step process remains challenging. This study proposes an innovative method for fabricating zinc stannate semiconductors featuring dual-mesoporous structures and tunable oxygen vacancies via a direct solution precursor plasma spray technique. As a proof of concept, the resulting zinc stannate-based coatings are applied to detect 2-undecanone, a key biomarker for rice aging. Remarkably, the zinc oxide/zinc stannate heterojunctions with a well-defined secondary pore structure exhibit exceptional gas-sensing performance for 2-undecanone at room temperature. Furthermore, practical experiments indicate that the developed sensor effectively identifies adulteration in various rice varieties. These results underscore the potential of this method for designing metal oxides with tailored properties for high-performance gas sensors. The enhanced adsorption capacity and dual-mesoporous features of this semiconductor make it a promising candidate for sensing applications in agricultural food safety inspections.

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引用次数: 0
Membranes of Polymer of Intrinsic Microporosity PIM-1 for Gas Separation: Modification Strategies and Meta-Analysis 用于气体分离的PIM-1聚合物膜:改性策略和meta分析
IF 26.6 1区 材料科学 Q1 Engineering Pub Date : 2025-01-23 DOI: 10.1007/s40820-024-01610-2
Boya Qiu, Yong Gao, Patricia Gorgojo, Xiaolei Fan

Polymers of intrinsic microporosity (PIMs) have received considerable attention for making high-performance membranes for carbon dioxide separation over the last two decades, owing to their highly permeable porous structures. However, challenges regarding its relatively low selectivity, physical aging, and plasticisation impede relevant industrial adoptions for gas separation. To address these issues, several strategies including chain modification, post-modification, blending with other polymers, and the addition of fillers, have been developed and explored. PIM-1 is the most investigated PIMs, and hence here we review the state-of-the-arts of the modification strategies of PIM-1 critically and discuss the progress achieved for addressing the aforementioned challenges via meta-analysis. Additionally, the development of PIM-1-based thin film composite membranes is commented as well, shedding light on their potential in industrial gas separation. We hope that the review can be a timely snapshot of the relevant state-of-the-arts of PIMs guiding future design and optimisation of PIMs-based membranes for enhanced performance towards a higher technology readiness level for practical applications.

在过去的二十年里,固有微孔聚合物(PIMs)由于其高渗透性的多孔结构,在制造高性能二氧化碳分离膜方面受到了广泛的关注。然而,其相对较低的选择性、物理老化和塑化等挑战阻碍了气体分离的相关工业应用。为了解决这些问题,已经开发和探索了几种策略,包括链改性,后改性,与其他聚合物共混以及添加填料。PIM-1是研究最多的pim,因此在这里我们回顾了PIM-1修饰策略的最新进展,并通过荟萃分析讨论了解决上述挑战所取得的进展。此外,还对基于pim -1的薄膜复合膜的发展进行了评述,揭示了其在工业气体分离中的潜力。我们希望这篇综述能够及时反映PIMs的相关技术状况,指导未来基于PIMs的膜的设计和优化,以提高性能,达到更高的实际应用技术水平。
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引用次数: 0
Comprehensive Chlorine Suppression: Advances in Materials and System Technologies for Direct Seawater Electrolysis 综合抑氯:海水直接电解材料与系统技术研究进展
IF 26.6 1区 材料科学 Q1 Engineering Pub Date : 2025-01-22 DOI: 10.1007/s40820-025-01653-z
Cenkai Zhao, Zheyuan Ding, Kunye Zhang, Ziting Du, Haiqiu Fang, Ling Chen, Hao Jiang, Min Wang, Mingbo Wu

Highlights

  • Rational design of chlorine-suppressing catalysts based on mechanistic insights.

  • Overview of recent advances in cutting-edge seawater electrolysis systems.

  • Discussion of challenges and potential directions for direct seawater electrolysis enhancement.

基于机理的抑氯催化剂的合理设计。前沿海水电解系统的最新进展概述。探讨海水直接电解强化技术面临的挑战及潜在发展方向。
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引用次数: 0
Cellulose Elementary Fibrils as Deagglomerated Binder for High-Mass-Loading Lithium Battery Electrodes 纤维素原纤维作为高质量负载锂电池电极的脱团粘合剂
IF 26.6 1区 材料科学 Q1 Engineering Pub Date : 2025-01-21 DOI: 10.1007/s40820-024-01642-8
Young-Kuk Hong, Jung-Hui Kim, Nag-Young Kim, Kyeong-Seok Oh, Hong-I Kim, Seokhyeon Ryu, Yumi Ko, Ji-Young Kim, Kwon-Hyung Lee, Sang-Young Lee

Highlights

  • Cellulose elementary fibrils (CEFs), the most fundamental unit of cellulose, are proposed as a deagglomerated binder for high-mass-loading Li battery electrodes.

  • The CEFs, due to their increased surface area and anionic charge density, promote uniform dispersion with carbon additives and mitigate interfacial side reactions in electrodes.

  • The CEF-based overlithiated layered oxide cathode exhibits a high areal-mass-loading (50 mg cm–2) and a high specific energy density (445.4 Wh kg–1) of a cell.

纤维素基本纤维(CEFs)是纤维素的最基本单位,有人提出将其作为高容量锂电池电极的脱胶粘合剂。CEFs 由于其表面积和阴离子电荷密度的增加,可促进与碳添加剂的均匀分散,并减轻电极中的界面副反应。基于 CEF 的层状氧化物阴极具有很高的质量负荷(50 mg cm-2)和电池的高比能量密度(445.4 Wh kg-1)。
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引用次数: 0
Revisiting Dipole-Induced Fluorinated-Anion Decomposition Reaction for Promoting a LiF-Rich Interphase in Lithium-Metal Batteries 重述偶极子诱导的氟-阴离子分解反应促进锂金属电池富锂界面相
IF 26.6 1区 材料科学 Q1 Engineering Pub Date : 2025-01-20 DOI: 10.1007/s40820-024-01637-5
Liu Wang, Jiahui Guo, Qi Qi, Xiaotong Li, Yuanmeng Ge, Haoyi Li, Yunfeng Chao, Jiang Du, Xinwei Cui

Building anion-derived solid electrolyte interphase (SEI) with enriched LiF is considered the most promising strategy to address inferior safety features and poor cyclability of lithium-metal batteries (LMBs). Herein, we discover that, instead of direct electron transfer from surface polar groups to bis(trifluoromethanesulfonyl)imide (TFSI) for inducing a LiF-rich SEI, the dipole-induced fluorinated-anion decomposition reaction begins with the adsorption of Li ions and is highly dependent on their mobility on the polar surface. To demonstrate this, a single-layer graphdiyne on MXene (sGDY@MXene) heterostructure has been successfully fabricated and integrated into polypropylene separators. It is found that the adsorbed Li ions connect electron-donating sGDY@MXene to TFSI, facilitating interfacial charge transfer for TFSI decomposition. However, this does not capture the entire picture. The sGDY@MXene also renders the adsorbed Li ions with high mobility, enabling them to reach optimal reaction sites and expedite their coordination processes with O on O=S=O and F on the broken –CF3, facilitating bond cleavage. In contrast, immobilized Li ions on the more lithiophilic pristine MXene retard these cleavage processes. Consequently, the decomposition reaction is accelerated on sGDY@MXene. This work highlights the dedicate balance between lithiophilicity and Li-ion mobility in effectively promoting a LiF-rich SEI for the long-term stability of LMBs.

利用富集LiF构建阴离子衍生固体电解质界面(SEI)被认为是解决锂金属电池(lmb)安全性差和可循环性差的最有前途的策略。在此,我们发现,偶极子诱导的氟化阴离子分解反应开始于Li离子的吸附,并且高度依赖于它们在极性表面的迁移率,而不是从表面极性基团直接电子转移到双(三氟甲磺酰基)亚胺(TFSI -)以诱导富liff SEI。为了证明这一点,MXene (sGDY@MXene)异质结构上的单层石墨炔已成功制成并集成到聚丙烯分离器中。发现吸附的Li离子将电子给体sGDY@MXene连接到TFSI -上,促进了TFSI -分解的界面电荷转移。然而,这并不能反映全部情况。sGDY@MXene还使吸附的Li离子具有高迁移率,使其能够到达最佳反应位点,加快了与O=S=O上的O和断裂的-CF3−上的F的配位过程,促进了键的裂解。相反,固定在更亲石的原始MXene上的Li离子延缓了这些解理过程。因此,在sGDY@MXene上加速了分解反应。这项工作强调了亲锂性和锂离子迁移率之间的平衡,有效地促进了lmb长期稳定的富锂SEI。
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引用次数: 0
Wearable Biodevices Based on Two-Dimensional Materials: From Flexible Sensors to Smart Integrated Systems 基于二维材料的可穿戴生物设备:从柔性传感器到智能集成系统
IF 26.6 1区 材料科学 Q1 Engineering Pub Date : 2025-01-15 DOI: 10.1007/s40820-024-01597-w
Yingzhi Sun, Weiyi He, Can Jiang, Jing Li, Jianli Liu, Mingjie Liu

Highlights

  • Two-dimensional (2D) materials are highlighted for their exceptional mechanical, electrical, optical, and chemical properties, making them ideal for fabricating high-performance wearable biodevices.

  • The review categorizes cutting-edge wearable biodevices by their interactions with physical, electrophysiological, and biochemical signals, showcasing how 2D materials enhance these devices' functionality, mainly including self-powering and human-machine interaction.

  • 2D materials enable multifunctional, high-performance biodevices, integrating self-powered systems, treatment platforms, and human-machine interactions, though challenges remain in practical applications.

二维(2D)材料因其卓越的机械、电气、光学和化学特性而备受关注,使其成为制造高性能可穿戴生物设备的理想选择。该综述通过与物理、电生理和生化信号的相互作用对尖端可穿戴生物设备进行了分类,展示了2D材料如何增强这些设备的功能,主要包括自供电和人机交互。尽管在实际应用中仍然存在挑战,但2D材料可以实现多功能、高性能的生物设备,集成自供电系统、治疗平台和人机交互。
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引用次数: 0
Correction: Self-Assembly of Binderless MXene Aerogel for Multiple-Scenario and Responsive Phase Change Composites with Ultrahigh Thermal Energy Storage Density and Exceptional Electromagnetic Interference Shielding 校正:用于多场景和响应相变复合材料的无粘结MXene气凝胶的自组装,具有超高的热储能密度和卓越的电磁干扰屏蔽
IF 26.6 1区 材料科学 Q1 Engineering Pub Date : 2025-01-15 DOI: 10.1007/s40820-024-01582-3
Chuanbiao Zhu, Yurong Hao, Hao Wu, Mengni Chen, Bingqing Quan, Shuang Liu, Xinpeng Hu, Shilong Liu, Qinghong Ji, Xiang Lu, Jinping Qu
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引用次数: 0
Correction: A Broad Range Triboelectric Stiffness Sensor for Variable Inclusions Recognition 修正:用于可变夹杂物识别的宽量程摩擦电刚度传感器
IF 26.6 1区 材料科学 Q1 Engineering Pub Date : 2025-01-14 DOI: 10.1007/s40820-024-01614-y
Ziyi Zhao, Zhentan Quan, Huaze Tang, Qinghao Xu, Hongfa Zhao, Zihan Wang, Ziwu Song, Shoujie Li, Ishara Dharmasena, Changsheng Wu, Wenbo Ding
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引用次数: 0
Tuning Isomerism Effect in Organic Bulk Additives Enables Efficient and Stable Perovskite Solar Cells 有机体添加剂的调谐同分异构效应使钙钛矿太阳能电池高效稳定
IF 26.6 1区 材料科学 Q1 Engineering Pub Date : 2025-01-10 DOI: 10.1007/s40820-024-01613-z
Qi Zhang, Qiangqiang Zhao, Han Wang, Yiguo Yao, Lei Li, Yulin Wei, Ruida Xu, Chenyang Zhang, Erik O. Shalenov, Yongguang Tu, Kai Wang, Mingjia Xiao

Highlights

  • By anchoring the perovskite sites with the functional groups of CzBP (P = O···Pb, N–H···I and P = O···N–H), the bulk nonradiative recombination is suppressed and ion migration is inhibited. Doping perovskite films with CzBP led to enhanced intercrystallite interactions in the bulk and improved photoluminescence quantum yield.

  • Using a typical electron-rich moiety as the π-linker to replace the classic alkyl spacer in CzBP facilitated the charge-carrier transport processes and the passivation effect of carbazole further contributed to high VOC. The optimized 2,7-CzBP-treated device achieves the highest power conversion efficiency (PCE) of 25.88%, with VOC of 1.189 V for 0.090 cm2 and the perovskite solar cell module with a PCE of 21.04% for 14 cm2.

  • For 2,7-CzBP, the more extended conjugation and the more linear molecular geometry result in a more effective improvement in the performance.

通过用CzBP官能团(P = O··Pb, N-H··I和P = O··N-H)锚定钙钛矿位点,抑制了大量非辐射重组,抑制了离子迁移。在钙钛矿薄膜中掺杂CzBP,增强了晶体间的相互作用,提高了光致发光量子产率。采用典型的富电子部分作为π-连接剂取代经典的烷基间隔剂,促进了CzBP的载流子输运过程,而咔唑的钝化作用进一步导致了高VOC。优化后的2,7- czbp处理器件的功率转换效率(PCE)最高,为25.88%,0.090 cm2时VOC为1.189 V, 14 cm2时钙钛矿太阳能电池组件的PCE为21.04%。对于2,7- czbp,共轭越广,分子几何越线性,性能越有效。
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引用次数: 0
Advancements in Passive Wireless Sensing Systems in Monitoring Harsh Environment and Healthcare Applications 无源无线传感系统在恶劣环境监测和医疗保健应用中的进展
IF 26.6 1区 材料科学 Q1 Engineering Pub Date : 2025-01-09 DOI: 10.1007/s40820-024-01599-8
Wei Yue, Yunjian Guo, Jong‐Chul Lee, Enkhzaya Ganbold, Jia-Kang Wu, Yang Li, Cong Wang, Hyun Soo Kim, Young-Kee Shin, Jun-Ge Liang, Eun-Seong Kim, Nam-Young Kim

Recent advancements in passive wireless sensor technology have significantly extended the application scope of sensing, particularly in challenging environments for monitoring industry and healthcare applications. These systems are equipped with battery-free operation, wireless connectivity, and are designed to be both miniaturized and lightweight. Such features enable the safe, real-time monitoring of industrial environments and support high-precision physiological measurements in confined internal body spaces and on wearable epidermal devices. Despite the exploration into diverse application environments, the development of a systematic and comprehensive research framework for system architecture remains elusive, which hampers further optimization of these systems. This review, therefore, begins with an examination of application scenarios, progresses to evaluate current system architectures, and discusses the function of each component—specifically, the passive sensor module, the wireless communication model, and the readout module—within the context of key implementations in target sensing systems. Furthermore, we present case studies that demonstrate the feasibility of proposed classified components for sensing scenarios, derived from this systematic approach. By outlining a research trajectory for the application of passive wireless systems in sensing technologies, this paper aims to establish a foundation for more advanced, user-friendly applications.

无源无线传感器技术的最新进展大大扩展了传感的应用范围,特别是在监测行业和医疗保健应用的具有挑战性的环境中。这些系统配备了无电池操作,无线连接,并且设计为小型化和轻量化。这些功能能够安全、实时地监测工业环境,并支持在受限的身体内部空间和可穿戴的表皮设备上进行高精度的生理测量。尽管对不同的应用环境进行了探索,但系统架构的系统和全面的研究框架仍然难以形成,这阻碍了系统的进一步优化。因此,本文将从应用场景的检查开始,进一步评估当前的系统架构,并在目标传感系统的关键实现背景下讨论每个组件的功能,特别是无源传感器模块、无线通信模型和读出模块。此外,我们提出了案例研究,证明了从这种系统方法中衍生出来的用于传感场景的分类组件的可行性。通过概述无源无线系统在传感技术中的应用研究轨迹,本文旨在为更先进、用户友好的应用奠定基础。
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引用次数: 0
期刊
Nano-Micro Letters
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