Nano Energy最新文献_第6页

Catalytic activity of 2D carbon allotropes: Crucial role of local active-site environment in hydrogen and oxygen evolution reactions 二维碳同素异形体的催化活性：局部活性位点环境在析氢和析氧反应中的关键作用

IF 17.1 1区材料科学 Q1 CHEMISTRY, PHYSICAL

Nano Energy

Pub Date : 2025-11-12 DOI: 10.1016/j.nanoen.2025.111588

Jun Ho Seok , Hung Ngo Manh , Seong Chan Cho , Chi Ho Lee , Sang Uck Lee

Abundant and low-cost carbon-based materials hold considerable value for sustainable energy applications, particularly as catalysts for the hydrogen evolution (HER) and oxygen evolution (OER) reactions essential to water splitting. However, their catalytic performance is limited by the strong sp²-hybridized planarity and restricted p orbital distribution, resulting in insufficient active sites and weaker adsorbate binding as compared to transition metal catalysts. To address this challenge, we systematically screened a range of two-dimensional carbon allotropes by introducing Stone-Wales transformations and carbon defect engineering, yielding pentaheptite with 5-, 6-, and 7-membered rings (Haeckelite H567 and R57, Phagraphene and psi-graphene) and pentahexoctite with 5-, 6-, and 8-membered rings (α-, β-, δ-Phographene (PhoG)). These topologies harness local ring distortions to modify the sp² network, thereby enabling a partial sp³-like character and more robust p_z orbital overlap. This modification increased the availability of active sites and fostered stronger adsorbate interactions. Specifically, β-PhoG and δ-PhoG significantly enhanced both HER and OER activities, with the C₅₅₈ site in β-PhoG emerging as the most efficient catalyst. This 5–5–8 defect site exhibited heightened nonplanarity that promoted partial sp³ hybridization and fostered robust p_z orbital contributions, thereby boosting local asymmetry and enhancing adsorbate binding. Catalytic performance was further improved by introducing curvature effects that lowered the overpotentials for the HER (0.06 V) and OER (0.32 V) at C₅₅₈@β-PhoG sites. These findings highlight the transformative potential of nonplanar carbon allotropes for overcoming the inherent limitations of sp²-hybridized materials, paving the way for more efficient and sustainable catalysts in energy applications.

丰富且低成本的碳基材料在可持续能源应用中具有相当大的价值，特别是作为析氢（HER）和析氧（OER）反应的催化剂，对水分解至关重要。然而，与过渡金属催化剂相比，它们的催化性能受到很强的sp2杂化平面性和有限的p轨道分布的限制，导致活性位点不足，吸附质结合较弱。为了解决这一挑战，我们通过引入Stone-Wales转化和碳缺陷工程，系统地筛选了一系列二维碳同素异形体，得到了具有5-、6-和7元环的五重体（Haeckelite H567和R57， Phagraphene和psi-graphene）和具有5-、6-和8元环的五重体（α-、β-、δ-Phographene (PhoG)）。这些拓扑利用局部环扭曲来修改sp2网络，从而实现部分类似sp3的特征和更稳健的pz轨道重叠。这种修饰增加了活性位点的可用性，并促进了更强的吸附物相互作用。具体来说，β-PhoG和δ-PhoG显著提高了HER和OER活性，其中β-PhoG中的C558位点是最有效的催化剂。5-5-8缺陷位点表现出高度的非平面性，促进了部分sp3杂化，促进了强大的pz轨道贡献，从而增强了局部不对称性，增强了吸附质结合。通过引入曲率效应，降低了C558@β-PhoG位点上HER （0.06 V）和OER （0.32 V）的过电位，进一步提高了催化性能。这些发现突出了非平面碳同素异形体在克服sp2杂化材料固有局限性方面的变革潜力，为能源应用中更高效和可持续的催化剂铺平了道路。

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引用次数: 0

Superior dielectric energy storage performance at elevated temperatures enabled by precisely tailored MgO NPLs distribution in tri-layer polymer composites 三层聚合物复合材料中精确定制的MgO NPLs分布实现了高温下优越的介电储能性能

IF 17.1 1区材料科学 Q1 CHEMISTRY, PHYSICAL

Nano Energy

Pub Date : 2025-11-12 DOI: 10.1016/j.nanoen.2025.111587

Ying Han , Xiao Li , Yang Liu , Jin Qian , Jianjun Liu , Diming Xu , Weichen Zhao , Haowei Zhou , Jiwei Zhai , Tao Zhou , Yao Zhou , Wenfeng Liu , Di Zhou

Polymer film capacitors are essential components in modern electronics due to their superior performance. However, their limited high-temperature stability hinders applications in demanding fields like electric vehicles and aerospace. While nanofiller doping has been extensively explored to enhance high-temperature performance, the inherent filler aggregation driven by van der Waals forces, hydrogen bonding, and electrostatic interactions remains a critical yet overlooked challenge, leading to heterogeneous dielectric response, compromised breakdown strength, and mechanical deterioration. Wide-bandgap magnesium oxide nanoplates (MgO NPLs) are synthesized via hydrothermal method and incorporated as fillers at ultralow loading into promising polyetherimide (PEI) matrix, followed by fabrication of tri-layer films through combined solution-casting and hot-pressing. An innovative concept of precisely tailoring filler distribution in polymer matrix has been proposed for the first time to effectively prevent nanofiller aggregation and charge accumulation, achieving uniform electric field distribution while minimizing interfacial dielectric mismatch and local field distortion. Consequently, the tri-layer composite dielectric maintains exceptional energy storage characteristics even under extreme high-temperature conditions. The maximum discharge energy density (U_d) reaches 7.82 J/cm³ with an efficiency (η) of 87.47 % at 150 ℃. Remarkably, at 200 ℃, the composite delivers an impressive U_d of 4.17 J/cm³ with η above 90 %, representing a tenfold improvement over pristine PEI and surpassing currently available commercial polymer dielectrics, newly developed synthetic polymers, and polymer composites. The proposed strategy of precisely tailoring the filler distribution demonstrates universal applicability across various polymer systems and diverse nanofillers, establishing a new paradigm for developing high-temperature-stable polymer dielectrics.

聚合物薄膜电容器因其优越的性能而成为现代电子产品中必不可少的元件。然而，它们有限的高温稳定性阻碍了在电动汽车和航空航天等苛刻领域的应用。虽然纳米填料掺杂已经被广泛研究以提高高温性能，但由范德华力、氢键和静电相互作用驱动的固有填料聚集仍然是一个关键但被忽视的挑战，导致非均匀介电响应、击穿强度受损和机械劣化。采用水热法制备了宽带隙氧化镁纳米板（MgO NPLs），并在超低负荷下将其作为填料加入到聚乙烯酰亚胺（PEI）基体中，然后采用溶液浇铸和热压相结合的方法制备了三层膜。首次提出了在聚合物基体中精确调整填料分布的创新概念，有效地防止了纳米填料聚集和电荷积累，实现了均匀的电场分布，同时最大限度地减少了界面介电失配和局部场畸变。因此，即使在极端高温条件下，三层复合电介质也能保持优异的储能特性。在150℃时，最大放电能量密度（Ud）达到7.82 J/cm³，效率（η）为87.47%。值得注意的是，在200℃下，该复合材料的Ud值为4.17 J/cm³，η值高于90%，比原始PEI提高了10倍，超过了目前可用的商用聚合物电介质、新开发的合成聚合物和聚合物复合材料。所提出的精确调整填料分布的策略证明了不同聚合物体系和不同纳米填料的普遍适用性，为开发高温稳定的聚合物电介质建立了新的范例。

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引用次数: 0

Synergistic solvation-interface engineering enables dendrite-free and long-life aqueous Zn-based energy storage 协同溶剂界面工程实现无枝晶和长寿命的锌基水溶液储能

IF 17.1 1区材料科学 Q1 CHEMISTRY, PHYSICAL

Nano Energy

Pub Date : 2025-11-11 DOI: 10.1016/j.nanoen.2025.111585

Wenyu Liang , Rui Zhong , Junlan Fang , Dongyang Li , Wendong Tan , Yueming Zhu , Guangyao Jin , Wen Song , Igor Zhitomirsky , Yifei Yuan , Rui Xu , Jun Lu

Aqueous zinc-ion batteries (AZIBs) face persistent challenges in reversibility, Coulombic efficiency (CE), and long-term cycling stability, primarily due to uncontrolled dendrite growth, parasitic hydrogen evolution reaction (HER), and sluggish desolvation kinetics of hydrated Zn^2 + ions. Here, we introduce a zincophobic–hydrophobic synergistic strategy by incorporating a trace amount of tiron (TR) into a 2 M Zn(OTf)₂ electrolyte. Contrary to conventional belief that zincophobicity impedes Zn deposition, TR simultaneously addresses all major failure modes. It preferentially adsorbs onto Zn surfaces, effectively blocking low nucleation overpotential sites and thereby guiding Zn²⁺ to deposit as uniform, petal-like nanostructures rather than dendrites. Concurrently, TR disrupts micelle-like [Zn(H₂O)ₙ]²⁺ solvation clusters via competitive coordination, forming a more labile solvation shell that lowers desolvation barriers and accelerates Zn²⁺ transport. In addition, the hydrophobic TR layer repels interfacial water, suppressing HER effectively. As a result, Zn||Zn symmetric cells exhibit an ultra-long cycling life of 1520 h (vs. 96 h control), Zn||Cu half-cells achieve a high CE of 98.8 %, and Zn||AC hybrid capacitors retain 95.1 % capacity over 5000 cycles. This work pioneers a generalizable solvation–interface co-engineering strategy that redefines the role of zincophobicity and hydrophobicity in Zn electrochemistry—offering a robust pathway toward high-performance, long-life aqueous zinc-based energy storage systems.

水溶液锌离子电池（AZIBs）在可逆性、库仑效率（CE）和长期循环稳定性方面面临着持续的挑战，主要是由于不受控制的枝晶生长、寄生析氢反应（HER）和水合Zn2+离子的缓慢脱溶动力学。在这里，我们引入了一种疏锌-疏水协同策略，将微量铁（TR）掺入2 M Zn(OTf)2电解质中。与传统认为的疏锌性阻碍锌沉积相反，TR同时解决了所有主要的失效模式。它优先吸附在Zn表面，有效地阻断低成核过电位位点，从而引导Zn2+沉积成均匀的花瓣状纳米结构，而不是枝晶。同时，TR通过竞争配位破坏胶束状的[Zn(H₂O)]2+溶剂化团簇，形成更不稳定的溶剂化壳，降低了溶剂化障碍，加速了Zn2+的运输。此外，疏水性TR层排斥界面水，有效抑制HER。结果表明，Zn||Zn对称电池具有1520小时的超长循环寿命（对照组为96小时），Zn||Cu半电池具有98.8%的高CE， Zn||交流混合电容器在5000次循环中保持95.1%的容量。这项工作开创了一种通用的溶剂界面协同工程策略，重新定义了锌电化学中疏锌和疏水的作用，为高性能、长寿命的水性锌基储能系统提供了一条强大的途径。

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引用次数: 0

Triboelectric-electromagnetic metamaterial systems for self-powered multiparameter wireless monitoring 用于自供电多参数无线监测的摩擦电磁超材料系统

IF 17.1 1区材料科学 Q1 CHEMISTRY, PHYSICAL

Nano Energy

Pub Date : 2025-11-11 DOI: 10.1016/j.nanoen.2025.111586

Wentao Li , Kanghui Han , Guohui Shen , Zhiguo He , Pengcheng Jiao

Self-powered, multiparameter real-time monitoring is essential for ensuring the safety of large-scale structures, influenced by wind disasters such as typhoons. However, it remains inadequate in detecting multiparameter dynamic response of complex large-scale structures under extreme working conditions. Herein, this work develops the wind-driven triboelectric-electromagnetic metamaterial systems to monitor the multiparameter response of large-scale truss structures under strong wind. The hybrid metamaterial systems consist of the rotational and translational components that include the triboelectric and electromagnetic generators, respectively, realizing multiparameter self-powered monitoring of the structure and environments. Experiments are performed to investigate the electrical response of the triboelectric-electromagnetic devices under different rotational speeds, frequencies and wind speeds. The reported devices are then integrated into the wireless monitoring systems to realize real-time detection. Eventually, the metamaterial systems are applied to monitoring the multiparameter response of large-scale transmission tower model. The structural dynamic response (i.e., stress) is monitored by the rotational component, and the environments (i.e., temperature and humidity) are determined by the translational component. The reported metamaterial systems provide novel design guidance for real-time, self-powered multiparameter monitoring of large-scale engineering structures.

自供电、多参数实时监测对于保证大型结构在台风等风灾影响下的安全至关重要。然而，对于复杂大型结构在极端工况下的多参数动力响应的检测仍存在不足。在此，本工作开发了风力驱动的摩擦电磁超材料系统，用于监测强风下大型桁架结构的多参数响应。该混合超材料系统由分别包含摩擦发电机和电磁发电机的旋转和平动部件组成，实现了对结构和环境的多参数自供电监测。实验研究了摩擦电磁装置在不同转速、频率和风速下的电响应。然后将报告的设备集成到无线监控系统中以实现实时检测。最后，将超材料系统应用于大型输电塔模型的多参数响应监测。结构的动力响应（即应力）由旋转分量监测，环境（即温度和湿度）由平移分量决定。所报道的超材料系统为大型工程结构的实时、自供电多参数监测提供了新的设计指导。

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引用次数: 0

Energy-efficient, high-accuracy sensing in loose-fitting textile sensor matrix for LLM-enabled human-robot collaboration 节能，高精度传感在宽松的纺织品传感器矩阵为llm支持的人机协作

IF 17.1 1区材料科学 Q1 CHEMISTRY, PHYSICAL

Nano Energy

Pub Date : 2025-11-11 DOI: 10.1016/j.nanoen.2025.111583

Pengfei Deng , Yang Meng , Qilong Cheng , Yuanqiu Tan , Zhihong Chen , Tian Li

Textile-based sensing systems hold significant promise for wearable human–robot interfaces, but many existing approaches lack one or more key attributes, such as pixel-level self-powering, high spatial resolution, or the ability to balance wearing comfort with sensing accuracy and reliability. Furthermore, few solutions demonstrate adaptability across physical platforms or integration with semantic reasoning frameworks. Here, we present a multifunctional textile sensor matrix (TSM) that addresses these limitations by combining woven Schottky-diode junctions for localized self-powered sensing, deep learning (DL) for denoising and feature extraction, and large language model (LLM) integration for high-level task planning. Each pixel, approximately 300 µm × 400 µm in size, provides dual-mode output for pressure sensing and energy harvesting, achieving 75 mV kPa⁻¹ voltage sensitivity, 0.82 nA kPa⁻¹ current sensitivity, and 14 µW cm⁻² power output. Each sensing pixel measures ∼300 µm × 400 µm, with an achieved density of ∼48 cm⁻². The system achieves 98.22 % accuracy in gesture recognition, 97.02 % in object identification, and 94.03 % in robotic hand adaptation via transfer learning. Beyond perception, integration with LLM supports high-level task planning, establishing a tactile-language-action (TLA) framework. This work introduces a scalable, energy-efficient, and cognitively integrated textile platform for adaptive human–robot collaboration and embodied AI.

基于纺织品的传感系统在可穿戴人机界面方面具有重大前景，但许多现有方法缺乏一个或多个关键属性，例如像素级自供电，高空间分辨率，或平衡穿着舒适性与传感精度和可靠性的能力。此外，很少有解决方案展示了跨物理平台的适应性或与语义推理框架的集成。在这里，我们提出了一种多功能纺织传感器矩阵（TSM），通过结合编织肖特基二极管结用于局部自供电传感，深度学习（DL）用于去噪和特征提取，以及大型语言模型（LLM）集成用于高级任务规划，解决了这些限制。每个像素的尺寸约为300µm × 400µm，提供双模输出，用于压力传感和能量收集，实现75 mV kPa-1电压灵敏度，0.82 nA kPa-1电流灵敏度和14µW cm-2功率输出。每个传感像素的尺寸为~300µm × 400µm，实现密度为~48 cm-2。通过迁移学习，该系统的手势识别准确率为98.22%，物体识别准确率为97.02%，机械手自适应准确率为94.03%。除了感知之外，与llm的集成还支持高级任务规划，建立触觉-语言-行动（TLA）框架。这项工作介绍了一个可扩展的、节能的、认知集成的纺织平台，用于自适应人机协作和嵌入人工智能。

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引用次数: 0

Ru–O–Ti/–C–Ti bond engineering in ultra-low Ru-loaded Ti3C2Ox electrocatalyst for efficient bifunctional alkaline seawater splitting 超低ru负载ti3c20ox电催化剂中Ru-O-Ti / -C-Ti键工程

IF 17.1 1区材料科学 Q1 CHEMISTRY, PHYSICAL

Nano Energy

Pub Date : 2025-11-10 DOI: 10.1016/j.nanoen.2025.111582

Yufei Jia, Dandan Ma, Jinfan Zhang, Mingyang Li, Jun Li, Chuanqi Zhi, Yi Zhang, Yimeng Zhang, Yu Chen, Hongkang Wang, Jian-Wen Shi

The development of efficient and durable bifunctional electrocatalysts is essential for largescale green hydrogen production, particularly for overall seawater splitting. Herein, a Ru/Ti₃C₂O_x@NF electrocatalyst was fabricated through electrodepositing ultra-low (0.54 wt%) Ru nanoclusters onto Ti₃C₂O_x MXene nanosheets deposited on nickel foam (NF). The electrocatalyst demonstrates excellent bifunctional activity and operational stability under constant current conditions, delivering low overpotentials of 33 mV for HER and 233 mV for OER at 10 mA cm⁻² in 1 M KOH seawater, and exhibiting less than 5 % performance loss after 100 h of continuous operation at 50 mA cm⁻². Remarkably, overall seawater splitting is realized at a cell voltage of just 1.50 V. Mechanistic studies reveal that the formation of dual interfacial bonds Ru–O–Ti and Ru–C–Ti with the –O and –C terminations of Ti₃C₂O_x induces directional charge redistribution across the interface. The Ru–O–Ti bonds significantly lower ΔG_H* to 0.07 eV and ΔG_O* to 1.48 eV, facilitating HER kinetics and OER intermediate adsorption, while Ru–C–Ti bonds reduce the ΔG_OOH* barrier to 1.42 eV. The cooperative effect of these dual interfacial motifs enhances bidirectional electrocatalytic performance. This study highlights an interfacial bonding strategy as a generalizable design concept for developing high-efficiency bifunctional electrocatalysts under challenging seawater electrolysis conditions.

开发高效、耐用的双功能电催化剂是实现大规模绿色制氢，特别是实现海水整体分解的必要条件。本文通过电沉积超低钌（0.54 wt.%）纳米团簇到沉积在泡沫镍（NF）上的ti3c20ox MXene纳米片上，制备了Ru/Ti3C2Ox@NF电催化剂。该电催化剂在恒流条件下表现出优异的双功能活性和运行稳定性，在1 M KOH海水中，在10 mA cm - 2条件下，HER的过电位为33 mV， OER的过电位为233 mV，在50 mA cm - 2条件下连续运行100小时后，性能损失小于5%。值得注意的是，整个海水分裂是在仅1.50 V的电池电压下实现的。机理研究表明，ti3c20ox的-O和-C末端形成Ru-O-Ti和Ru-C-Ti双界面键，诱导了界面上定向电荷的重新分布。Ru-O-Ti键显著降低ΔGH*至0.07 eV和ΔGO*至1.48 eV，有利于HER动力学和OER中间体吸附，而Ru-C-Ti键将ΔGOOH*势垒降低至1.42 eV。这些双界面基序的协同作用增强了双向电催化性能。该研究强调了界面键合策略作为一种可推广的设计概念，可用于开发具有挑战性的海水电解条件下的高效双功能电催化剂。

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引用次数: 0

End-linked multistrip-flutter triboelectric nanogenerator for enhanced electrostatic discharge output and frequency 端联多条带颤振摩擦纳米发电机增强静电放电输出和频率

IF 17.1 1区材料科学 Q1 CHEMISTRY, PHYSICAL

Nano Energy

Pub Date : 2025-11-10 DOI: 10.1016/j.nanoen.2025.111584

Hyeonkyeong Jeon , Kyunghwan Cha , Minju Jee , Zong-Hong Lin , Sunghan Kim , Youngho Jin , Jinkee Hong , Sangmin Lee

Wind-driven triboelectric nanogenerators (TENGs) featuring high energy densities and simple mechanisms are gaining significant attention as alternatives to large-scale wind turbine power generation. However, despite their high voltages, the low current output in the microampere range and effective power must be improved for commercial viability. Therefore, this study proposes a multistrip-flutter TENG (MSF-TENG) that improves the electrical and mechanical performance of devices. The MSF-TENG consists of a stator with a discharge gateway and a conductive flutter with cuts in the wind direction. This structure generates an electrostatic discharge (ESD) based on the air-breakdown phenomenon, while the multistrip flutter (MSF) structure enables ESD where the electric field is strongest. Furthermore, independently moving but electrically connected strips increase the discharge output through charge redistribution in a single ESD, simultaneously improving the discharge frequency under the same wind conditions. Additionally, the MSF-TENG improves usability in urban environments by reducing the weight of each strip, resulting in reduced cut-in speed and operating noise. These performance improvements are achieved through simple internal structural changes, without relying on any external conditions, thereby providing a new strategy for wind-driven TENGs.

风力驱动的摩擦纳米发电机（TENGs）具有高能量密度和简单的机制，作为大型风力发电的替代方案正受到广泛关注。然而，尽管它们的电压很高，但为了商业可行性，必须改进微安范围内的低电流输出和有效功率。因此，本研究提出了一种多条带颤振TENG (MSF-TENG)，以改善设备的电气和机械性能。MSF-TENG由一个带有放电通道的定子和一个在风向上有切口的导电颤振组成。这种结构基于空气击穿现象产生静电放电（ESD），而多条带颤振（MSF）结构在电场最强的地方产生ESD。此外，独立移动但电连接的条带通过在单个ESD中的电荷重新分配增加了放电输出，同时提高了相同风况下的放电频率。此外，MSF-TENG通过减少每个条带的重量来提高城市环境中的可用性，从而降低切割速度和运行噪音。这些性能的提高是通过简单的内部结构变化来实现的，而不依赖于任何外部条件，从而为风力驱动的teng提供了一种新的策略。

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引用次数: 0

Photothermal conversion-passive cooling interface achieves efficient evaporation and sustainable thermoelectric power generation 光热转换-被动冷却界面，实现高效蒸发和可持续热电发电

IF 17.1 1区材料科学 Q1 CHEMISTRY, PHYSICAL

Nano Energy

Pub Date : 2025-11-10 DOI: 10.1016/j.nanoen.2025.111581

Longjun Wang , Jingwen Zhou , Feilong Liu , Jingru Zhou , Yingjie Zhang , Jiayin Huang , Mingyu Hou , Kai Wang

Solar-driven freshwater production coupled with low-grade heat recovery for electricity generation offers a potential solution to simultaneous shortages of freshwater and power shortages. However, achieving highly efficient and sustainable solar-powered water-electricity cogeneration in complex offshore environments remains challenging. This study developed a bidirectional interfacial evaporation and passive thermoelectric generation (PIEG) strategy, forming the basis of a sustainable cogeneration system. The system comprises a photothermal conversion evaporation layer (MoS₂/SA) fabricated from high-purity 1T-phase MoS₂, thermoelectric module (TEG) and passive evaporative cooling interface (MF/SA). The passive cooling interface within the system effectively converts and utilizes the waste heat and latent heat generated during the interface evaporation process, thereby expanding the scope of solar thermal energy utilization. Consequently, the PIEG-based water-electricity cogeneration device requires no external cooling energy input. Under one sun irradiance, exhibits an output voltage of 137.2 mV and an exceptional water evaporation rate of 2.82 kg m⁻² h⁻¹, these values represent enhancements of 172.2 % and 29.5 %, respectively, compared to devices lacking passive interfacial cooling (PIC). Experimental demonstrations confirmed the feasibility of the PIEG strategy for seawater desalination, powering electronic devices and irrigation applications. This work presents a highly promising zero-carbon strategy for achieving self-sufficiency in freshwater, energy, and food resources in remote offshore settings.

太阳能驱动的淡水生产加上用于发电的低品位热回收，为同时短缺的淡水和电力提供了一个潜在的解决方案。然而，在复杂的海上环境中实现高效和可持续的太阳能水电热电联产仍然具有挑战性。本研究开发了一种双向界面蒸发和被动热电发电（PIEG）策略，形成了可持续热电联产系统的基础。该系统包括由高纯度1t相MoS 2制成的光热转换蒸发层（MoS 2 /SA）、热电模块（TEG）和被动蒸发冷却界面（MF/SA）。系统内的被动冷却界面有效地转换和利用了界面蒸发过程中产生的余热和潜热，从而扩大了太阳能热能的利用范围。因此，基于pig的水电热电联产装置不需要外部冷却能量输入。在一次太阳辐照下，其输出电压为137.2 mV，水分蒸发速率为2.82 kg m−2 h−1，与缺乏被动界面冷却（PIC）的器件相比，这些值分别提高了172.2%和29.5%。实验演示证实了PIEG策略在海水淡化、电子设备供电和灌溉应用方面的可行性。这项工作提出了一个非常有前途的零碳战略，可以在偏远的海上环境中实现淡水、能源和食物资源的自给自足。

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引用次数: 0

Haptic inference in a self-powered triboelectric textile system 自供电摩擦电纺织系统的触觉推理

IF 17.1 1区材料科学 Q1 CHEMISTRY, PHYSICAL

Nano Energy

Pub Date : 2025-11-08 DOI: 10.1016/j.nanoen.2025.111579

Shujia Xu , Jing Jiang , Meng Hao Lee , Chenxi Xiao , Juan Wachs , Wenzhuo Wu

Creating intelligent material systems that emulate the holistic perception of human touch and achieve generalizable object recognition beyond fixed classes holds transformative potential for robotics, prosthetics, and human-machine interfaces. Herein, we demonstrate a textile-integrated material system based on self-powered triboelectric sensors that overcomes the complexity, wiring, and power demands of conventional sensing approaches. By emulating human stereognosis through the decoupling of proprioceptive signals from wrist tendon motion and tactile signals from fingertip contact using a minimalist array of only six sensor channels, this frugal architecture achieves ∼99 % classification accuracy across 30 real-world objects, including visually indistinguishable cases. Crucially, this system goes beyond fixed-class sensing to generalizable, cognitive-like perception, learning abstract shape and material primitives to successfully identify previously unseen object combinations with 94.06 % accuracy. Achieving robust inference and compositional generalization with an ∼99 % reduction in sensor count compared to state-of-the-art dense sensor arrays, our approach establishes a new paradigm for informationally efficient, edge-intelligent material systems for autonomous, vision-independent electronic perception.

创造智能材料系统，模仿人类触觉的整体感知，实现超越固定类别的可通用物体识别，这对机器人、假肢和人机界面具有变革潜力。在此，我们展示了一种基于自供电摩擦电传感器的纺织集成材料系统，该系统克服了传统传感方法的复杂性，布线和功率需求。通过使用只有六个传感器通道的极简阵列，通过腕部肌腱运动的本体感觉信号和指尖接触的触觉信号的解耦来模拟人类的立体感知，这种节俭的架构在30个现实世界物体中实现了~ 99 %的分类精度，包括视觉上无法区分的情况。至关重要的是，该系统超越了固定类别感知，实现了一般化的、类似认知的感知，学习抽象形状和材料原语，以94.06 %的准确率成功识别以前未见过的物体组合。与最先进的密集传感器阵列相比，我们的方法实现了强大的推理和成分概括，传感器数量减少了~ 99 %，为自主、视觉独立的电子感知建立了信息高效、边缘智能材料系统的新范例。

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引用次数: 0

Kirigami engineered recyclable milk carton for droplet driven contact-separation triboelectric energy harvesting and self-powered environmental monitoring Kirigami设计的可回收牛奶盒，用于液滴驱动的接触分离，摩擦电能量收集和自供电环境监测

IF 17.1 1区材料科学 Q1 CHEMISTRY, PHYSICAL

Nano Energy

Pub Date : 2025-11-08 DOI: 10.1016/j.nanoen.2025.111580

Mingxia Chen , Rui Gu , Jiahong Yang , Chao Liu , Siqi Sun , Dongseong Lee , Chao Hu , Yang Liu , Tao Jiang , Zhong Lin Wang , Qijun Sun

With the rapid advancement of technology and the increasing environmental challenges, efficient waste management and energy harvesting solutions are crucial for sustainable development. This study presents a dual-mode triboelectric nanogenerator (TENG) powered by liquid droplets, developed for both energy harvesting and environmental monitoring. The dual-mode TENG leverages the charge transfer mechanism at the solid-liquid interface during contact. Through the integrated system comprising a solid-liquid triboelectric raindrop energy harvester (RD-TENG) and a contact-separation mode TENG, it enables the conversion of raindrop kinetic energy into electrical energy. By optimizing the droplet impact frequency, height, and the tilt angle of the contact substrate, the energy conversion efficiency of the dual-mode TENG can be readily enhanced. The RD-TENG demonstrated an output variation according to pH changes, making it viable as both an energy harvester and a pH sensor. It can also effectively detect variations in rainfall intensity and frequency, providing a self-powered solution for continuous environmental monitoring. Notably, we have explored to use recycled milk cartons as substrates for TENG device, promoting sustainable (or waste) materials utilization in energy harvesting systems. Further optimization led to the development of an array of dual-mode TENG units, which significantly improved output power and capacitor charging rates. The system was tested under simulated rainfall conditions, demonstrating its ability to power portable devices such as calculators and hygrothermographs. Additionally, a machine learning model was employed to classify rainfall intensity based on triboelectric signals, realizing high classification accuracy. This research illustrates the potential of integrating TENG technology with environmental monitoring systems, providing a sustainable solution for both energy harvesting and waste recycling.

随着技术的快速进步和环境挑战的日益增加，有效的废物管理和能源收集解决方案对可持续发展至关重要。本研究提出了一种由液滴驱动的双模摩擦电纳米发电机（TENG），用于能量收集和环境监测。双模TENG利用了接触过程中固液界面的电荷转移机制。通过由固液摩擦电雨滴能量采集器（RD-TENG）和接触分离模式TENG组成的集成系统，将雨滴动能转化为电能。通过优化液滴撞击频率、高度和接触基板的倾斜角度，可以很容易地提高双模TENG的能量转换效率。RD-TENG演示了根据pH值变化的输出变化，使其既可以作为能量收集器又可以作为pH值传感器。它还可以有效地检测降雨强度和频率的变化，为持续的环境监测提供自供电解决方案。值得注意的是，我们已经探索使用回收牛奶盒作为TENG装置的基材，促进能源收集系统中可持续（或废物）材料的利用。进一步的优化导致了一系列双模TENG单元的开发，这大大提高了输出功率和电容器充电率。该系统在模拟降雨条件下进行了测试，证明了其为便携式设备（如计算器和湿度计）供电的能力。采用机器学习模型基于摩擦电信号对降雨强度进行分类，实现了较高的分类精度。这项研究说明了将TENG技术与环境监测系统相结合的潜力，为能源收集和废物回收提供了可持续的解决方案。

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