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Print-compatible morphology optimization strategy reduces the lab-to-module performance gap in organic photovoltaics 打印兼容的形态优化策略减少了有机光伏电池的实验室到组件的性能差距
IF 17.1 1区 材料科学
Nano Energy Pub Date : 2025-09-30 DOI: 10.1016/j.nanoen.2025.111494
Qiang Wu , Jintao Yang , Yiyu Chen , Ke Zhou , Qunping Fan , Long Jiang , Guanghao Lu , Wei Ma
{"title":"Print-compatible morphology optimization strategy reduces the lab-to-module performance gap in organic photovoltaics","authors":"Qiang Wu ,&nbsp;Jintao Yang ,&nbsp;Yiyu Chen ,&nbsp;Ke Zhou ,&nbsp;Qunping Fan ,&nbsp;Long Jiang ,&nbsp;Guanghao Lu ,&nbsp;Wei Ma","doi":"10.1016/j.nanoen.2025.111494","DOIUrl":"10.1016/j.nanoen.2025.111494","url":null,"abstract":"<div><div>Spin-coating technology remains extensively employed in laboratory settings for processing high-efficiency small-area organic photovoltaics. However, when scaling up from cell-level to module-scale fabrication, the spin-coating process-influenced by interfacial wetting behavior and film formation kinetics-produces non-uniform morphological characteristics across both macro- and micro-scales within active-layer films. To address this challenge, we introduce a co-solvent strategy incorporating chloroform (CF), a secondary solvent with lower boiling point and higher surface tension, into chlorobenzene (CB). This formulation optimizes interfacial wetting dynamics, enhances Marangoni velocity, and regulates film formation kinetics. Rheological analysis of the active-layer solution coupled with morphological characterization demonstrates that the co-solvent system enables effective regulation of the film deposition process, which yields uniform large-area films (25 cm<sup>2</sup>) with optimal phase-separated network structures. The resultant PM6:L8-BO:BTP-eC9 modules processed with co-solvent not only exhibit a notable efficiency of 16.52 % and a fill factor of 74.13 %, which is better than both pure CB- and CF-processed counterparts, but also present the impressive stability. Crucially, slot-die-coated modules fabricated using this co-solvent strategy maintain a competitive PCE exceeding 16 %, underscoring the critical importance of interfacial wetting optimization and kinetic control in developing high-performance, industrially viable photovoltaic modules.</div></div>","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":"146 ","pages":"Article 111494"},"PeriodicalIF":17.1,"publicationDate":"2025-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145188494","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Multifunctional electronic skin with waterproof strain sensing and ultra-stretchable triboelectric energy harvesting 具有防水应变传感和超拉伸摩擦电能量收集功能的多功能电子皮肤
IF 17.6 1区 材料科学
Nano Energy Pub Date : 2025-09-30 DOI: 10.1016/j.nanoen.2025.111496
Xiaolong He, Wenjian Li, Kunlin Chen, Yongsheng Zhang, Yuxuan Zhang, Yutao Pei, Petra Rudolf, Giuseppe Portale
{"title":"Multifunctional electronic skin with waterproof strain sensing and ultra-stretchable triboelectric energy harvesting","authors":"Xiaolong He, Wenjian Li, Kunlin Chen, Yongsheng Zhang, Yuxuan Zhang, Yutao Pei, Petra Rudolf, Giuseppe Portale","doi":"10.1016/j.nanoen.2025.111496","DOIUrl":"https://doi.org/10.1016/j.nanoen.2025.111496","url":null,"abstract":"Wearable flexible strain sensors and single-electrode triboelectric nanogenerators (TENGs) have emerged as promising building blocks for smart electronic skin applications. However, only a few studies have succeeded in integrating both technologies into a single device while maintaining stable and reliable performance. Here, we present a simple and scalable fabrication approach using spraying, electrostatic spinning, and vacuum filtration to develop a multifunctional system comprising a water-resistant strain sensor and a stretch-insensitive TENG. The strain sensor is constructed from carboxylated carbon nanotubes (CNTs-COOH), fluorinated alkyl silane-modified Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub> (FAS-MXene), and a flexible polydimethylsiloxane (PDMS). The TENG consists of a film made of polyvinylpyrrolidone-modified CNTs (PVP-CNTs), Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub> (MXene), and electrospun thermoplastic polyurethane nanofibres (TPU) as an electrode. When employed as a strain sensor, the device demonstrates high sensitivity, a wide sensing range (0% to 100% strain), excellent water resistance, and outstanding durability (5,000 cycles at 50% strain). These properties are achieved through MXene surface chemical modification and a unique microcrack structure developed under strain. As a highly stretchable TENG, the device exhibits remarkable stability, with minimal changes in relative resistance (0.03 at 20% strain) even after 5,700 cycles, owing to the strong adhesion forces generated by hydrogen bonding interactions between the porous TPU film, PVP-CNTs, and MXene. The integrated device enables simultaneous strain sensing and self-powering capabilities, offering a versatile platform for applications such as health monitoring, encrypted information transmission, and object recognition. The low cost and ease of mass fabrication of this electronic skin mark a significant advancement towards future multifunctional wearable technologies.","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":"72 1","pages":""},"PeriodicalIF":17.6,"publicationDate":"2025-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145195194","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Ordered mesoporous borocarbonitride-reduced graphene oxide heterostructure for quasi solid-state supercapacitors and sodium-ion batteries 准固态超级电容器和钠离子电池用有序介孔硼碳氮-还原氧化石墨烯异质结构
IF 17.1 1区 材料科学
Nano Energy Pub Date : 2025-09-30 DOI: 10.1016/j.nanoen.2025.111495
Rohan Bahadur , Swapnil Deshpande , Barkha Singh , Nithya S. George , P.A. Aleena , Wei Li , Dong-Chen Qi , Rohit Srivastava , Sudip Chakraborty , Ajayan Vinu
{"title":"Ordered mesoporous borocarbonitride-reduced graphene oxide heterostructure for quasi solid-state supercapacitors and sodium-ion batteries","authors":"Rohan Bahadur ,&nbsp;Swapnil Deshpande ,&nbsp;Barkha Singh ,&nbsp;Nithya S. George ,&nbsp;P.A. Aleena ,&nbsp;Wei Li ,&nbsp;Dong-Chen Qi ,&nbsp;Rohit Srivastava ,&nbsp;Sudip Chakraborty ,&nbsp;Ajayan Vinu","doi":"10.1016/j.nanoen.2025.111495","DOIUrl":"10.1016/j.nanoen.2025.111495","url":null,"abstract":"<div><div>Mesoporous electrochemically active materials are gaining significant attention due to their high surface area and pore volume, and tunable pore size which facilitate superior ion transfer and contribute to superior electrochemical properties. Ordered mesoporous heterostructures composed of mesoporous borocarbonitride (BCN) and reduced graphene oxide (rGO) were developed using SBA-15 which acts as the hard template. The conductivity of the prepared hybrids was fine-tuned with the simple adjustment of the rGO sheets. The optimized BCN-rGO hybrid showed an excellent surface area of 1139 m<sup>2</sup> g<sup>−1</sup> with an average pore diameter of ∼9 nm and an ordered mesoporous structure. In the hybrid, BCN is responsible for the overall charge storage, whereas the use of rGO enhances the charge transfer and electronic conductivity. Theoretical calculations confirmed that the BCN-rGO hybrid exhibited excellent conductivity and affinity for Na ions The electrochemical properties were exploited by investigating the nanohybrid in supercapacitors, wherein at a current density of 0.5 A g<sup>−1</sup>, the material demonstrated an exceptional supercapacitance of 338.1 F g<sup>−1</sup>. The hybrid also showed a capacity of 204.4 mAh g<sup>−1</sup> at 0.1 A g<sup>−1</sup> when utilized as anodes for sodium-ion batteries which demonstrated excellent cyclability and rate capability. Through the theoretical studies, the favorable active sites for their adsorption were identified and it was demonstrated that 24 Na<sup>+</sup> ions may be accommodated in the BCN-rGO hybrid.</div></div>","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":"146 ","pages":"Article 111495"},"PeriodicalIF":17.1,"publicationDate":"2025-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145195195","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Ultra-low thermal conductivity and high zT in multi-doped AgInSe2: A high-entropy approach to n-type thermoelectric materials 多掺杂AgInSe2的超低导热率和高zT: n型热电材料的高熵方法
IF 17.1 1区 材料科学
Nano Energy Pub Date : 2025-09-30 DOI: 10.1016/j.nanoen.2025.111491
Somnath Acharya , Sungjin Park , Kisung Kang , Woosun Jang , Yonas Shasho , Jeongwon Lee , Yousung Choi , Junphil Hwang , Changhoon Lee , Yunseok Shin , Ji Hoon Shim , Soonil Lee , Jongho Park , Woochul Kim
{"title":"Ultra-low thermal conductivity and high zT in multi-doped AgInSe2: A high-entropy approach to n-type thermoelectric materials","authors":"Somnath Acharya ,&nbsp;Sungjin Park ,&nbsp;Kisung Kang ,&nbsp;Woosun Jang ,&nbsp;Yonas Shasho ,&nbsp;Jeongwon Lee ,&nbsp;Yousung Choi ,&nbsp;Junphil Hwang ,&nbsp;Changhoon Lee ,&nbsp;Yunseok Shin ,&nbsp;Ji Hoon Shim ,&nbsp;Soonil Lee ,&nbsp;Jongho Park ,&nbsp;Woochul Kim","doi":"10.1016/j.nanoen.2025.111491","DOIUrl":"10.1016/j.nanoen.2025.111491","url":null,"abstract":"<div><div>The escalating global energy demand and the need for sustainable energy solutions highlight the importance of advancing thermoelectric technologies for efficient waste heat recovery and refrigeration. Although diamond-like chalcogenides are promising high-performance thermoelectric materials, the development of high-efficiency <em>n</em>-type counterparts remains a major challenge. This study introduces a multi-doping approach to synthesize high-entropy diamond-like chalcogenides Ag<sub>x</sub>Cd<sub>y</sub>In<sub>1-z</sub>Zn<sub>z</sub>Se<sub>2</sub>, achieving an ultra-low lattice thermal conductivity of 0.2 W/m.K at 800 K in AgCd<sub>0.2</sub>In<sub>0.9</sub>Zn<sub>0.1</sub>Se<sub>2</sub>.This is attributed to the formation of Ag-rich nanoclusters and strong phonon scattering induced by lattice strain and point defects. In parallel, carrier concentration is optimized through excess Ag and multi-doping, which enhances the power factor. As a result, a peak <em>zT</em> of 1.15 at 800 K and an average <em>zT</em> of 0.82 over 370–800 K are achieved, which represents the highest reported values for <em>n</em>-type diamond-like chalcogenides within this temperature range. In addition, a prototype thermoelectric module was fabricated by combining the developed <em>n</em>-type AgCd<sub>0.2</sub>In<sub>0.9</sub>Zn<sub>0.1</sub>Se<sub>2</sub> with <em>p</em>-type Cu<sub>0.8</sub>Ag<sub>0.2</sub>[Ga<sub>0.8</sub>In<sub>0.2</sub>]<sub>0.99</sub>Zn<sub>0.01</sub>Te<sub>2</sub>. These results demonstrate the potential of high-entropy diamond-like chalcogenides for next-generation thermoelectric applications while also underscoring the need for further optimization of module integration.</div></div>","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":"146 ","pages":"Article 111491"},"PeriodicalIF":17.1,"publicationDate":"2025-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145188336","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A neuromorphic photodetector with ferroelectric-controlled static, event, and short-term memory modes for on-chip real-time spatiotemporal classification and motion prediction 一种具有铁电控制的静态、事件和短期记忆模式的神经形态光电探测器,用于片上实时时空分类和运动预测
IF 17.1 1区 材料科学
Nano Energy Pub Date : 2025-09-29 DOI: 10.1016/j.nanoen.2025.111490
Mohit Kumar , Hyunmin Dang , Donghyeon Bae , Hyungtak Seo
{"title":"A neuromorphic photodetector with ferroelectric-controlled static, event, and short-term memory modes for on-chip real-time spatiotemporal classification and motion prediction","authors":"Mohit Kumar ,&nbsp;Hyunmin Dang ,&nbsp;Donghyeon Bae ,&nbsp;Hyungtak Seo","doi":"10.1016/j.nanoen.2025.111490","DOIUrl":"10.1016/j.nanoen.2025.111490","url":null,"abstract":"<div><div>Event-based vision sensors offer sparse, low-latency alternatives to frame-based imaging, but their lack of embedded memory and static scene awareness limits use in intelligent systems. Most designs capture only transient changes and rely on external processors for classification and motion prediction, lacking the temporal continuity and energy efficiency needed for real-time, context-aware decision-making. Here, we report a neuromorphic photodetector that integrates voltage-controlled static sensing, event detection, and tunable short-term memory (STM) within a single pixel. By combining a photoactive silicon layer with a ferroelectric HfZrO<sub>2</sub> stack, the device enables bias-dependent transitions between self-powered event spikes (∼73 µs), steady-state photocurrent, and programmable STM-like decay responses. By coupling the sensor array to a field-programmable gate array that performs on-chip learning and inference, the system intrinsically encodes real-time temporal dynamics to directly classify spatiotemporal patterns—such as gestures, logic sequences, and Morse code—with over 93 % accuracy, while also enabling real-time motion prediction of dynamic objects. The resulting architecture reduces power consumption by over 1000 × and boosts inference speed by more than 200 × compared to conventional event sensors with software-based neural networks, while STM elevates prediction accuracy from 20 % to over 80 % in dynamic position tracking tasks. This unified sensor–processor platform offers a scalable route toward compact, adaptive, and low-power neuromorphic vision systems.</div></div>","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":"146 ","pages":"Article 111490"},"PeriodicalIF":17.1,"publicationDate":"2025-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145188338","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Gram-scale synthesis of N-NiMo/MoO2 heterostructures to boost hydrogen evolution in low-alkalinity anion exchange membrane water electrolysis 低碱度阴离子交换膜电解中N-NiMo/MoO2异质结构的克级合成促进析氢
IF 17.1 1区 材料科学
Nano Energy Pub Date : 2025-09-29 DOI: 10.1016/j.nanoen.2025.111489
Yu Sun , Manman Qi , Xin Tan , Shiyi Tao , Chen Jia , Yachao Zeng , Yulian Zhao , Kaiqiang Liu , Sean C. Smith , Lingxing Zan , Somnath Mukherjee , Kamran Dastafkan , Zenglin Wang , Yi Ma , Xin Bo , Chuan Zhao
{"title":"Gram-scale synthesis of N-NiMo/MoO2 heterostructures to boost hydrogen evolution in low-alkalinity anion exchange membrane water electrolysis","authors":"Yu Sun ,&nbsp;Manman Qi ,&nbsp;Xin Tan ,&nbsp;Shiyi Tao ,&nbsp;Chen Jia ,&nbsp;Yachao Zeng ,&nbsp;Yulian Zhao ,&nbsp;Kaiqiang Liu ,&nbsp;Sean C. Smith ,&nbsp;Lingxing Zan ,&nbsp;Somnath Mukherjee ,&nbsp;Kamran Dastafkan ,&nbsp;Zenglin Wang ,&nbsp;Yi Ma ,&nbsp;Xin Bo ,&nbsp;Chuan Zhao","doi":"10.1016/j.nanoen.2025.111489","DOIUrl":"10.1016/j.nanoen.2025.111489","url":null,"abstract":"<div><div>Anion exchange membrane water electrolysis (AEMWE) presents a practical approach for green H<sub>2</sub> production. However, the cathodic hydrogen evolution reaction (HER) in basic media is still sluggish as the lack of the cost-efficient catalysts for further industrialization. Here, the heterostructured catalysts combining nucleophilic and oxophilic components facilitate water dissociation and enhance HER and synthesized via a facile gel-route, featuring abundant interfaces between N-doped NiMo alloy and MoO<sub>2</sub> particles. The heterostructured catalyst exhibits exceptional HER activity comparable to 60 %PtC catalysts in basic media (pH = 7–14), delivering high current densities of &gt; 1 A cm<sup>−2</sup> with long<sup>-</sup>term durability. AEMWE simulation demonstrates a low cell voltage of 1.87 V at 1 A cm<sup>−2</sup>, even with dilute 0.1 M KOH electrolyte. DFT calculations support the interfacial excitation that MoO<sub>2</sub> clusters and N-doped NiMo alloy act synergistically to facilitate water dissociation and optimize *H binding, thereby accelerating hydrogen evolution kinetics. This work offers a practical approach for scalable fabrication of high performance, nonprecious-metal-based electrocatalysts for real application of AEMWE.</div></div>","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":"146 ","pages":"Article 111489"},"PeriodicalIF":17.1,"publicationDate":"2025-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145188337","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Triboelectrification during non-wetting liquids intrusion–extrusion in hydrophobic nanoporous silicon monoliths 疏水纳米多孔硅整体中非润湿液体侵入-挤压过程中的摩擦电作用
IF 17.1 1区 材料科学
Nano Energy Pub Date : 2025-09-28 DOI: 10.1016/j.nanoen.2025.111488
Luis Bartolomé , Nicola Verziaggi , Manuel Brinker , Eder Amayuelas , Sebastiano Merchori , Mesude Z. Arkan , Raivis Eglītis , Andris Šutka , Mirosław Chorążewski , Patrick Huber , Simone Meloni , Yaroslav Grosu
{"title":"Triboelectrification during non-wetting liquids intrusion–extrusion in hydrophobic nanoporous silicon monoliths","authors":"Luis Bartolomé ,&nbsp;Nicola Verziaggi ,&nbsp;Manuel Brinker ,&nbsp;Eder Amayuelas ,&nbsp;Sebastiano Merchori ,&nbsp;Mesude Z. Arkan ,&nbsp;Raivis Eglītis ,&nbsp;Andris Šutka ,&nbsp;Mirosław Chorążewski ,&nbsp;Patrick Huber ,&nbsp;Simone Meloni ,&nbsp;Yaroslav Grosu","doi":"10.1016/j.nanoen.2025.111488","DOIUrl":"10.1016/j.nanoen.2025.111488","url":null,"abstract":"<div><div>Triboelectric nanogenerators (TENGs) have emerged as promising devices for converting mechanical energy into electrical energy through contact electrification and electrostatic induction. However, the generated energy, unlike instantaneous power, current and voltage, is rarely addressed in the vibrant research field of TENGs. In this study, we investigate Intrusion–Extrusion Triboelectric Nanogenerators (IE-TENGs) based on nanoporous silicon monoliths and non-wetting liquids (i.e., water and a 1 mg/mL polyethylenimine solution), addressing the energy generated during this process, conversion efficiency as well as the mechanism underlying the observed phenomena. Compared to powder-based IE-TENGs, the use of monolithic silicon structures enables more efficient and reproducible energy harvesting, with significant improvements in both instantaneous power density and energy per cycle. We also analyzed the impact of compression rate and liquid properties on electrical output, showing that higher compression rates improve power generation, while modifying the liquid medium significantly improves conversion efficiency, reaching up to 9 %. Furthermore, through computational analysis, we identify the crucial role of grafting defects on the generated triboelectric output. This work introduces a novel approach to triboelectric energy harvesting by implementing a monolithic nanoporous architecture and offering an alternative pathway for enhancing contact electrification via confined solid–liquid interfaces. These findings provide new insights into the triboelectric behavior of porous systems and pave the way for next-generation high-performance IE-TENGs, with potential applications in wearable electronics, environmental energy harvesting, and self-powered sensing systems.</div></div>","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":"146 ","pages":"Article 111488"},"PeriodicalIF":17.1,"publicationDate":"2025-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145183242","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Lewis acid-mediated interfacial accelerated mass transport and electron transfer for enhanced oxygen reduction electrocatalysis 路易斯酸介导的界面加速质量传递和电子传递增强氧还原电催化
IF 17.1 1区 材料科学
Nano Energy Pub Date : 2025-09-27 DOI: 10.1016/j.nanoen.2025.111487
Shiyu Zhang , Kang Liao , Jiajun Wang , Zanyu Chen , Buwei Sun , Xin Wang , Wenbin Hu , Xiaopeng Han
{"title":"Lewis acid-mediated interfacial accelerated mass transport and electron transfer for enhanced oxygen reduction electrocatalysis","authors":"Shiyu Zhang ,&nbsp;Kang Liao ,&nbsp;Jiajun Wang ,&nbsp;Zanyu Chen ,&nbsp;Buwei Sun ,&nbsp;Xin Wang ,&nbsp;Wenbin Hu ,&nbsp;Xiaopeng Han","doi":"10.1016/j.nanoen.2025.111487","DOIUrl":"10.1016/j.nanoen.2025.111487","url":null,"abstract":"<div><div>Single-atom catalysts are widely recognized as promising candidates in oxygen reduction reactions (ORR). However, achieving high activity remains challenging due to the limited interfacial reaction processes of key reactants and intermediates. Herein, we propose an optimization of Lewis acid-mediated interfacial processes to enhance the ORR performance of FePc. It was found that modifications in site acidity improved the interfacial water molecule network, thereby enhancing the transport of reactant oxygen and facilitating the subsequent protonation process. Additionally, the formation of the Fe–S Lewis pair effectively reduced the intermediate adsorption strength, which contributed to the improvement of high catalytic activity. This work not only highlights the crucial role of Lewis acid-base interactions in the ORR at the single-atom scale, but also provides a new avenue for the development of non-carbon-based single-atom catalysts in energy conversion and storage applications.</div></div>","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":"146 ","pages":"Article 111487"},"PeriodicalIF":17.1,"publicationDate":"2025-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145153854","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Low-frequency hydromechanical energy triggered piezocatalytic activity of MoS2 nanosheets for sustainable removal of Cr (VI) 低频水机械能触发MoS2纳米片持续去除Cr (VI)的压催化活性
IF 17.1 1区 材料科学
Nano Energy Pub Date : 2025-09-26 DOI: 10.1016/j.nanoen.2025.111484
Tanmoy Ghosh , Arupjyoti Pathak , Soumya Dhang , Joydip Mondal , Sourav Paul , Ashadul Adalder , Ranjit Thapa , Subhajit Saha
{"title":"Low-frequency hydromechanical energy triggered piezocatalytic activity of MoS2 nanosheets for sustainable removal of Cr (VI)","authors":"Tanmoy Ghosh ,&nbsp;Arupjyoti Pathak ,&nbsp;Soumya Dhang ,&nbsp;Joydip Mondal ,&nbsp;Sourav Paul ,&nbsp;Ashadul Adalder ,&nbsp;Ranjit Thapa ,&nbsp;Subhajit Saha","doi":"10.1016/j.nanoen.2025.111484","DOIUrl":"10.1016/j.nanoen.2025.111484","url":null,"abstract":"<div><div>Piezocatalysis is an emerging technology where a piezoelectric material under mechanical stress in water produces reactive oxygen species (ROS) that are effectively utilized for environmental remediation applications. However, unavailability of high-power mechanical energy source like ultrasound in nature, restricts the wide-spread deployment of piezocatalysis for real-life applications. Herein, we demonstrate successful utilization of low-power hydromechanical energy for ROS generation and consequent reduction of Cr (VI) through MoS<sub>2</sub> nanosheets based piezocatalyst. MoS<sub>2</sub> nanosheets are grown on cotton fabric (MoS<sub>2</sub>@CF) via facile solvothermal method and further characterized by XRD, XPS, FESEM and HRTEM techniques. With the application of mechanical force, the developed MoS<sub>2</sub> nanosheets based piezocatalyst exhibits high Cr (VI) reduction efficiency, achieving complete reduction of 100 ppm Cr (VI) in just 50 min. A piezocatalytic filter is designed with MoS<sub>2</sub>@CF for mimicking piezocatalysis under real-life low-frequency water flow. The designed piezocatalytic filter demonstrates almost 99 % reduction of Cr (VI) in 9 hrs at a flow rate of 2 L/min. Piezocatalytic Cr (VI) reduction activity has been elucidated in light of mechanical stress induced band bending and the free carrier separation phenomena. The undertaken strategy highlights the great potential of piezocatalysis technology for harnessing low-power mechanical energy source in nature for wastewater treatment.</div></div>","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":"146 ","pages":"Article 111484"},"PeriodicalIF":17.1,"publicationDate":"2025-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145153855","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A versatile electrocatalytic [3+2] ring expansion approach for efficient electrosynthesis of oxa-/aza-heterocyclic compounds 一种多功能电催化[3+2]扩环方法用于氧杂环化合物的高效电合成
IF 17.1 1区 材料科学
Nano Energy Pub Date : 2025-09-26 DOI: 10.1016/j.nanoen.2025.111485
Miao Wang , Zuoao Wu , Yulong Fu , Pengbo Zhang, Huaizhu Wang, Tianyu Shen, Qianchuan Yu, Xingkai Ma, Guochun Ding, Yizhi Xing, Zuoxiu Tie, Guoqiang Wang, Shuhua Li, Zhong Jin
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