Jeong-Gil Kim, Jaehyoung Ko, Hyung-Kyu Lim, Yerin Jo, Hayoung Yu, Min Woo Kim, Min Ji Kim, Hyeon Su Jeong, Jinwoo Lee, Yongho Joo, Nam Dong Kim
{"title":"Organic Radical-Boosted Ionic Conductivity in Redox Polymer Electrolyte for Advanced Fiber-Shaped Energy Storage Devices","authors":"Jeong-Gil Kim, Jaehyoung Ko, Hyung-Kyu Lim, Yerin Jo, Hayoung Yu, Min Woo Kim, Min Ji Kim, Hyeon Su Jeong, Jinwoo Lee, Yongho Joo, Nam Dong Kim","doi":"10.1007/s40820-025-01700-9","DOIUrl":"10.1007/s40820-025-01700-9","url":null,"abstract":"<div><p>Fiber-shaped energy storage devices (FSESDs) with exceptional flexibility for wearable power sources should be applied with solid electrolytes over liquid electrolytes due to short circuits and leakage issue during deformation. Among the solid options, polymer electrolytes are particularly preferred due to their robustness and flexibility, although their low ionic conductivity remains a significant challenge. Here, we present a redox polymer electrolyte (HT_RPE) with 4-hydroxy-2,2,6,6-tetramethylpiperidine-1-oxyl (HT) as a multi-functional additive. HT acts as a plasticizer that transforms the glassy state into the rubbery state for improved chain mobility and provides distinctive ion conduction pathway by the self-exchange reaction between radical and oxidized species. These synergetic effects lead to high ionic conductivity (73.5 mS cm<sup>−1</sup>) based on a lower activation energy of 0.13 eV than other redox additives. Moreover, HT_RPE with a pseudocapacitive characteristic by HT enables an outstanding electrochemical performance of the symmetric FSESDs using carbon-based fiber electrodes (energy density of 25.4 W h kg<sup>−1</sup> at a power density of 25,000 W kg<sup>−1</sup>) without typical active materials, along with excellent stability (capacitance retention of 91.2% after 8,000 bending cycles). This work highlights a versatile HT_RPE that utilizes the unique functionality of HT for both the high ionic conductivity and improved energy storage capability, providing a promising pathway for next-generation flexible energy storage devices.</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":714,"journal":{"name":"Nano-Micro Letters","volume":"17 1","pages":""},"PeriodicalIF":26.6,"publicationDate":"2025-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s40820-025-01700-9.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143602164","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Highly Active Oxygen Evolution Integrating with Highly Selective CO2-to-CO Reduction","authors":"Chaowei Wang, Laihong Geng, Yingpu Bi","doi":"10.1007/s40820-025-01688-2","DOIUrl":"10.1007/s40820-025-01688-2","url":null,"abstract":"<div><h2> Highlights</h2><div>\u0000 \u0000 \u0000<ul>\u0000 <li>\u0000 <p>Rational regulation of the coordination environment of surface-active sites on both photoanode and cathode has been demonstrated.</p>\u0000 </li>\u0000 <li>\u0000 <p>Reducing the coordination of FeNi catalysts decorated on BiVO<sub>4</sub> photoanodes achieves excellent water oxidation activities of 6.51 mA cm<sup>−2</sup> (1.23 <i>V</i><sub>RHE</sub>, AM 1.5G).</p>\u0000 </li>\u0000 <li>\u0000 <p>Single-atom cobalt anchoring on N-rich carbon with increased Co–N coordination remarkably promotes CO<sub>2</sub> reduction to CO.</p>\u0000 </li>\u0000 </ul>\u0000 </div></div>","PeriodicalId":714,"journal":{"name":"Nano-Micro Letters","volume":"17 1","pages":""},"PeriodicalIF":26.6,"publicationDate":"2025-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s40820-025-01688-2.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143602165","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Seokyeong Lee, Jong Woong Park, Jihye Jang, Jin Woo Oh, Gwanho Kim, Jioh Yoo, Jong Gun Jung, Hyowon Han, Wei Jiang, Chang Eun Lee, Jungwon Yoon, Kaiying Zhao, Cheolmin Park
{"title":"Rewritable Triple-Mode Light-Emitting Display","authors":"Seokyeong Lee, Jong Woong Park, Jihye Jang, Jin Woo Oh, Gwanho Kim, Jioh Yoo, Jong Gun Jung, Hyowon Han, Wei Jiang, Chang Eun Lee, Jungwon Yoon, Kaiying Zhao, Cheolmin Park","doi":"10.1007/s40820-025-01686-4","DOIUrl":"10.1007/s40820-025-01686-4","url":null,"abstract":"<div><h2>Highlights</h2><div>\u0000 \u0000 \u0000<ul>\u0000 <li>\u0000 <p>A rewritable triple-mode light-emitting display (RE-TriLED) was fabricated, enabled by stimuli-interactive fluorescence (FL), room-temperature phosphorescence (RTP), and electroluminescence (EL).</p>\u0000 </li>\u0000 <li>\u0000 <p>Mode-selective multiple light emission is achieved, in which the three emission modes of FL, RTP, and EL are readily manipulated through the controlled evaporation of polar liquids and water.</p>\u0000 </li>\u0000 <li>\u0000 <p>A high-security, full-color information encryption display is demonstrated, wherein optical information encoded in one mode is decipherable only when properly aligned with the other two modes.\u0000</p>\u0000 </li>\u0000 </ul>\u0000 </div></div>","PeriodicalId":714,"journal":{"name":"Nano-Micro Letters","volume":"17 1","pages":""},"PeriodicalIF":26.6,"publicationDate":"2025-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s40820-025-01686-4.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143602166","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Shajahan Shaik, Jeonghyeon Kim, Mrinal Kanti Kabiraz, Faraz Aziz, Joon Yong Park, Bhargavi Rani Anne, Mengfan Li, Hongwen Huang, Ki Min Nam, Daeseong Jo, Sang-Il Choi
{"title":"Rapid Outgassing of Hydrophilic TiO2 Electrodes Achieves Long-Term Stability of Anion Exchange Membrane Water Electrolyzers","authors":"Shajahan Shaik, Jeonghyeon Kim, Mrinal Kanti Kabiraz, Faraz Aziz, Joon Yong Park, Bhargavi Rani Anne, Mengfan Li, Hongwen Huang, Ki Min Nam, Daeseong Jo, Sang-Il Choi","doi":"10.1007/s40820-025-01696-2","DOIUrl":"10.1007/s40820-025-01696-2","url":null,"abstract":"<div><h2>Highlights</h2><div>\u0000 \u0000 \u0000<ul>\u0000 <li>\u0000 <p>A super-hydrophilic electrode was successfully developed by depositing porous NiFe nanoparticles onto annealed TiO<sub>2</sub> nanotubes (NiFe/ATNT), facilitating rapid outgassing of nonpolar gases.</p>\u0000 </li>\u0000 <li>\u0000 <p>The NiFe/ATNT electrode demonstrated an overpotential of 235 mV at 10 mA cm<sup>−2</sup> for the oxygen evolution reaction in 1.0 M KOH and served as the anode in the anion exchange membrane water electrolyzer (AEMWE), achieving a current density of 1.67 A cm<sup>−2</sup> at 1.80 V.</p>\u0000 </li>\u0000 <li>\u0000 <p>The AEMWE utilizing the NiFe/ATNT electrode exhibited remarkable stability, maintaining operation for 1500 h at 0.50 A cm<sup>−2</sup> under challenging thermal conditions of 80 ± 3 °C.</p>\u0000 </li>\u0000 </ul>\u0000 </div></div>","PeriodicalId":714,"journal":{"name":"Nano-Micro Letters","volume":"17 1","pages":""},"PeriodicalIF":26.6,"publicationDate":"2025-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s40820-025-01696-2.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143602323","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Manipulating Interfacial Stability via Preferential Absorption for Highly Stable and Safe 4.6 V LiCoO2 Cathode","authors":"Long Chen, Xin He, Yiqing Chen, Youmin Hou, Yujie Zhang, Kangli Wang, Xinping Ai, Yuliang Cao, Zhongxue Chen","doi":"10.1007/s40820-025-01694-4","DOIUrl":"10.1007/s40820-025-01694-4","url":null,"abstract":"<div><p>Elevating the upper cutoff voltage to 4.6 V could effectively increase the reversible capacity of LiCoO<sub>2</sub> (LCO) cathode, whereas the irreversible structural transition, unstable electrode/electrolyte interface and potentially induced safety hazards severely hinder its industrial application. Building a robust cathode/electrolyte interface film by electrolyte engineering is one of the efficient approaches to boost the performance of high-voltage LCO (HV-LCO); however, the elusive interfacial chemistry poses substantial challenges to the rational design of highly compatible electrolytes. Herein, we propose a novel electrolyte design strategy and screen proper solvents based on two factors: highest occupied molecular orbital energy level and LCO absorption energy. Tris (2, 2, 2-trifluoroethyl) phosphate is determined as the optimal solvent, whose low defluorination energy barrier significantly promotes the construction of LiF-rich cathode/electrolyte interface layer on the surface of LCO, thereby eventually suppresses the phase transition and enhances Li<sup>+</sup> diffusion kinetics. The rationally designed electrolyte endows graphite||HV-LCO pouch cells with long cycle life (85.3% capacity retention after 700 cycles), wide-temperature adaptability (− 60–80 °C) and high safety (pass nail penetration). This work provides new insights into the electrolyte screening and rational design to constructing stable interface for high-energy lithium-ion batteries.</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":714,"journal":{"name":"Nano-Micro Letters","volume":"17 1","pages":""},"PeriodicalIF":26.6,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s40820-025-01694-4.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143594809","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Xiao Hu Wang, Bin Wu, Yongfa Zhu, Dingsheng Wang, Nian Bing Li, Zhichuan J. Xu, Hong Qun Luo
{"title":"Design Refinement of Catalytic System for Scale-Up Mild Nitrogen Photo-Fixation","authors":"Xiao Hu Wang, Bin Wu, Yongfa Zhu, Dingsheng Wang, Nian Bing Li, Zhichuan J. Xu, Hong Qun Luo","doi":"10.1007/s40820-025-01695-3","DOIUrl":"10.1007/s40820-025-01695-3","url":null,"abstract":"<div><p>Ammonia and nitric acid, versatile industrial feedstocks, and burgeoning clean energy vectors hold immense promise for sustainable development. However, Haber–Bosch and Ostwald processes, which generates carbon dioxide as massive by-product, contribute to greenhouse effects and pose environmental challenges. Thus, the pursuit of nitrogen fixation through carbon–neutral pathways under benign conditions is a frontier of scientific topics, with the harnessing of solar energy emerging as an enticing and viable option. This review delves into the refinement strategies for scale-up mild photocatalytic nitrogen fixation, fields ripe with potential for innovation. The narrative is centered on enhancing the intrinsic capabilities of catalysts to surmount current efficiency barriers. Key focus areas include the in-depth exploration of fundamental mechanisms underpinning photocatalytic procedures, rational element selection, and functional planning, state-of-the-art experimental protocols for understanding photo-fixation processes, valid photocatalytic activity evaluation, and the rational design of catalysts. Furthermore, the review offers a suite of forward-looking recommendations aimed at propelling the advancement of mild nitrogen photo-fixation. It scrutinizes the existing challenges and prospects within this burgeoning domain, aspiring to equip researchers with insightful perspectives that can catalyze the evolution of cutting-edge nitrogen fixation methodologies and steer the development of next-generation photocatalytic systems.</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":714,"journal":{"name":"Nano-Micro Letters","volume":"17 1","pages":""},"PeriodicalIF":26.6,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s40820-025-01695-3.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143594808","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Bio-Inspired Ionic Sensors: Transforming Natural Mechanisms into Sensory Technologies","authors":"Kyongtae Choi, Gibeom Lee, Min-Gyu Lee, Hee Jae Hwang, Kibeom Lee, Younghoon Lee","doi":"10.1007/s40820-025-01692-6","DOIUrl":"10.1007/s40820-025-01692-6","url":null,"abstract":"<div><p>Many natural organisms have evolved unique sensory systems over millions of years that have allowed them to detect various changes in their surrounding environments. Sensory systems feature numerous receptors—such as photoreceptors, mechanoreceptors, and chemoreceptors—that detect various types of external stimuli, including light, pressure, vibration, sound, and chemical substances. These stimuli are converted into electrochemical signals, which are transmitted to the brain to produce the sensations of sight, touch, hearing, taste, and smell. Inspired by the biological principles of sensory systems, recent advancements in electronics have led to a wide range of applications in artificial sensors. In the current review, we highlight recent developments in artificial sensors inspired by biological sensory systems utilizing soft ionic materials. The versatile characteristics of these ionic materials are introduced while focusing on their mechanical and electrical properties. The features and working principles of natural and artificial sensing systems are investigated in terms of six categories: vision, tactile, hearing, gustatory, olfactory, and proximity sensing. Lastly, we explore several challenges that must be overcome while outlining future research directions in the field of soft ionic sensors.</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":714,"journal":{"name":"Nano-Micro Letters","volume":"17 1","pages":""},"PeriodicalIF":26.6,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s40820-025-01692-6.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143594810","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jiawang Xie, Jianfeng Yan, Haoze Han, Yuzhi Zhao, Ma Luo, Jiaqun Li, Heng Guo, Ming Qiao
{"title":"Photonic Chip Based on Ultrafast Laser-Induced Reversible Phase Change for Convolutional Neural Network","authors":"Jiawang Xie, Jianfeng Yan, Haoze Han, Yuzhi Zhao, Ma Luo, Jiaqun Li, Heng Guo, Ming Qiao","doi":"10.1007/s40820-025-01693-5","DOIUrl":"10.1007/s40820-025-01693-5","url":null,"abstract":"<div><h2>Highlights</h2><div>\u0000 \u0000 <ul>\u0000 <li>\u0000 <p>Programmable photonic chips based on ultrafast laser-induced phase change is fabricated for photonic computing.</p>\u0000 </li>\u0000 <li>\u0000 <p>Based on the integrated photonic chip, photonic convolutional neural networks are built to implement machine learning algorithm, and images recognition task is achieved.</p>\u0000 </li>\u0000 <li>\u0000 <p>The transient laser-induced phase change dynamics of Sb film are revealed at atomic scale, and the phase change time is measured.</p>\u0000 </li>\u0000 </ul>\u0000 </div></div>","PeriodicalId":714,"journal":{"name":"Nano-Micro Letters","volume":"17 1","pages":""},"PeriodicalIF":26.6,"publicationDate":"2025-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s40820-025-01693-5.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143583432","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Qian Ding, Bingqi Jin, Yinxia Zheng, Huiru Zhao, Jun Wang, Haoxuan Li, Dong Wang, Ben Zhong Tang
{"title":"Integration of Bio-Enzyme-Treated Super-Wood and AIE-Based Nonwoven Fabric for Efficient Evaporating the Wastewater with High Concentration of Ammonia Nitrogen","authors":"Qian Ding, Bingqi Jin, Yinxia Zheng, Huiru Zhao, Jun Wang, Haoxuan Li, Dong Wang, Ben Zhong Tang","doi":"10.1007/s40820-025-01685-5","DOIUrl":"10.1007/s40820-025-01685-5","url":null,"abstract":"<div><h2>Highlights</h2><div>\u0000 \u0000 \u0000<ul>\u0000 <li>\u0000 <p>Bio-enzyme-treated super-wood and aggregation-induced emission (AIE)-based nonwoven fabric is integrated into a solar evaporator.</p>\u0000 </li>\u0000 <li>\u0000 <p>The evaporator demonstrates a high evaporation rate of 12.83 kg m<sup>−2</sup> h<sup>−1</sup> when treating simulated wastewater containing 30 wt% NH<sub>4</sub>Cl under 1.0 sun of illumination.</p>\u0000 </li>\u0000 <li>\u0000 <p>AIE-doped evaporator exhibits remarkable photodynamic antibacterial activity against mildew and bacteria.</p>\u0000 </li>\u0000 </ul>\u0000 </div></div>","PeriodicalId":714,"journal":{"name":"Nano-Micro Letters","volume":"17 1","pages":""},"PeriodicalIF":26.6,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s40820-025-01685-5.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143581246","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Angle-Selective Photonics for Smart Subambient Radiative Cooling","authors":"Fan Liu, Qichong Zhang","doi":"10.1007/s40820-025-01698-0","DOIUrl":"10.1007/s40820-025-01698-0","url":null,"abstract":"<div><h2>Highlights</h2><div>\u0000 \u0000 <ul>\u0000 <li>\u0000 <p>Subambient daytime radiative cooling of vertical surfaces is achieved by a sawtooth \u0000grating with a period significantly greater than the thermal wavelength.</p>\u0000 </li>\u0000 <li>\u0000 <p>Adjusting the grating period and aspect ratio allows the cooler to be adapted to various \u0000inclined surfaces.</p>\u0000 </li>\u0000 </ul>\u0000 </div></div>","PeriodicalId":714,"journal":{"name":"Nano-Micro Letters","volume":"17 1","pages":""},"PeriodicalIF":26.6,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s40820-025-01698-0.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143581255","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}