Nano Energy最新文献

{"title":"Suppression strategy of interfacial defects: γ-ray-induced nano structural rearrangement of NiOx sol-gel for highly sensitive organic photodetectors","authors":"Byung Gi Kim, Ji Yun Chun, Jae Sang Cho, Du Heon Ha, Woongsik Jang, Dong Hwan Wang","doi":"10.1016/j.nanoen.2025.110695","DOIUrl":"https://doi.org/10.1016/j.nanoen.2025.110695","url":null,"abstract":"This study investigated the effects of γ-ray treatment on the NiO_x (γ-Fixing NiO_x) interlayer and the consequent impact on the performance of organic photodetectors. γ-Fixing NiO_x sol-gels had reduced particle size distribution (4.26 ± 0.65<!-- --> <!-- -->nm) and exhibit improved uniformity. The root-mean-square (RMS) roughness analysis revealed that the γ-Fixing sample exhibited 1.12<!-- --> <!-- -->nm. It was 51.35% higher than that of the Pristine sample but 54.29% lower than that of the conventional Fixing sample. XPS analysis (<span><span>Figure 3</span></span>a,b) showed concurrent intensity increases in both oxidation states from pristine to γ-Fixing: Ni₂O₃ (856.5<!-- --> <!-- -->eV, +0.89%) and NiO (854.0<!-- --> <!-- -->eV, +1.81%). This resulted in a modified NiO/Ni₂O₃ ratio (1.003→1.013), supported by decreased Ni:O ratios (1:1.81→1:1.40) from EDS analysis (<span><span>Figure 2</span></span><strong> <!-- -->h</strong>), enhanced Ni-O bonding (676<!-- --> <!-- -->cm^-1) in FT-IR spectra (<span><span>Figure 3</span></span><strong> <!-- -->f</strong>), and improved oxidation resistance (E_onset,ox: 0.38<!-- --> <!-- -->V→0.41<!-- --> <!-- -->V) as shown in cyclic voltammetry data (<span><span>Figure S1a</span></span><strong>-c</strong> and <span><span>Table S1</span></span>). These structural changes enhanced the electrical properties of the NiO_x film, thereby significantly improving the performance of the fabricated organic photodetectors. The γ-ray-treated device exhibited a 99.29% reduction in dark current density to 8.00 × 10⁻¹¹ A/cm², an improved ideality factor of 1.38, and a 30.87% decrease in the defect state energy to 71.2<!-- --> <!-- -->meV. Furthermore, the external quantum efficiency was &gt;80% in the visible range and shot noise-limited detectivity was 1.00 × 10¹⁴ Jones - an 11.65-fold improvement in relation to that of the untreated sample. These findings demonstrated that γ-ray treatment effectively enhances the properties of the NiO_x interlayer and would promote developing high-performance organic photodetectors.","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":"3 1","pages":""},"PeriodicalIF":17.6,"publicationDate":"2025-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142992561","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}

{"title":"Magnetoelectric triggered self-powered vital capacity sensor","authors":"Yanan Bai, Chong Guo, Zhijie Huang, Shengjie Yin, Chris R. Bowen, Ya Yang","doi":"10.1016/j.nanoen.2025.110699","DOIUrl":"https://doi.org/10.1016/j.nanoen.2025.110699","url":null,"abstract":"The “vital capacity” is a crucial biomechanical marker for evaluating lung health, and is crucial for diagnosing conditions that include asthma and chronic obstructive pulmonary disease (COPD). However, existing monitoring devices are often limited by their dependence on an external power source, and are susceptible to environmental impact to reduce the accuracy of detection. This study therefore presents a novel magnetoelectric triggered sensor (MTS) for self-powered vital capacity monitoring, where the sensor can directly convert the respiratory airflow into electrical signals and monitor vital capacity. The MTS maintains high signal stability, even when operating in high-humidity environments, to enable precise monitoring of the Forced Vital Capacity (FVC) and Peak Expiratory Flow (PEF), thereby serving as an effective instrument for evaluating vital capacity function. This work not only highlights the significant potential of this new approach to self-powered spirometry sensing but also paves the way for the development of portable and wearable devices for the monitoring of respiratory disease.","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":"10 1","pages":""},"PeriodicalIF":17.6,"publicationDate":"2025-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142992562","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}

{"title":"Structural Engineering and Operando Characterization of Advanced Catalysts for Electrochemical Nitrogen Reduction Reaction","authors":"Muhammad Yasir, Zhiliang Zhao, Yongming Hu, Xinyi Zhang, Haunting Wang","doi":"10.1016/j.nanoen.2025.110693","DOIUrl":"https://doi.org/10.1016/j.nanoen.2025.110693","url":null,"abstract":"Atmospheric nitrogen fixation has been a cornerstone for ammonia synthesis for centuries, yet the Haber-Bosch process, despite its effectiveness, demands high energy input and accounts for about 450 million metric tons (Mt) of carbon dioxide emissions annually. The urgency to transition toward sustainable methodologies has propelled the development of electrochemical strategies for nitrogen reduction into ammonia, leveraging renewable energy and minimizing environmental impact. Developing new technologies and methodologies is crucial in the synthesis and characterization of advanced catalysts for green ammonia production. This review converges on advancements in promoting the catalyst’s performance through structural engineering with a focus on optimizing morphology, defect engineering, doping, and synergistic heterostructure. Moreover, the significance of operando characterization techniques in combination with theoretical models in elucidating reaction mechanisms and guiding catalyst design is underscored. By encapsulating the challenges such as low selectivity and energy efficiency that presently hinder wide-scale adoption, this comprehensive overview not only spotlights the latest research on electrocatalytic materials but also aims to foster innovation toward efficient, sustainable ammonia production solutions.","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":"18 1","pages":""},"PeriodicalIF":17.6,"publicationDate":"2025-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142992563","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}

{"title":"Interfacial Layer-adsorption Effect Induces Uniform Deposition for Stable Zn Anodes","authors":"Hongchun Mu, Qian He, Zekai Zhang, Hengyi Wang, Hongli Chen, Haiping Su, Juchen Guo, Jingkun Li, Honglai Liu, Cheng Lian","doi":"10.1016/j.nanoen.2025.110700","DOIUrl":"https://doi.org/10.1016/j.nanoen.2025.110700","url":null,"abstract":"The unfavorable side reactions (<em>e.g.</em>, hydrogen evolution reaction), nonuniform diffusion of Zn²⁺ and dendrite growth severely hamper the large-scale applicability of aqueous Zn ion batteries. Herein, we introduce a multifunctional protective layer of porous diatomite (DE) to modify Zn anodes. The chemical bonding and electrostatic interactions of H₂O with Si-OH groups in DE endow it with a chromatographic column-like layer-by-layer adsorption effect, leading to inhibited hydrogen evolution reaction and accelerated desolvation kinetics of Zn (H₂O)₆²⁺. Furthermore, the chemically cross-linked structure of Si-O-Zn significantly improves the interfacial stability of the Zn surface, inducing a 3D diffusion of Zn²⁺ and a dendrite-free deposition layer. As a result, the DE-modified Zn anode (DE@Zn) enables a long stable cycling of more than 2400<!-- --> <!-- -->h at 1<!-- --> <!-- -->mA<!-- --> <!-- -->cm⁻² in Zn/Zn symmetrical cells. We further demonstrate a DE@Zn//V₂O₃@CNFs flexible battery delivering an excellent reversible capacity. This work highlights the importance of the layer-by-layer adsorption mechanism for ion uniform deposition and provides a promising strategy to stabilize metal electrodes.","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":"32 1","pages":""},"PeriodicalIF":17.6,"publicationDate":"2025-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142992566","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}

{"title":"Large-scale continuous production of cellulose/hollow SiO2 composite aerogel fibers for outdoor all-day radiation cooling","authors":"Shan Jiang, Shaoqi Jiang, Jiatong Yan, Chuanxi Lin, Weijie Wang, Shouxiang Jiang, Ronghui Guo","doi":"10.1016/j.nanoen.2025.110688","DOIUrl":"https://doi.org/10.1016/j.nanoen.2025.110688","url":null,"abstract":"Passive radiant cooling fabrics (PRCF) can effectively reduce the human body surface temperature and alleviate heat stress without consuming energy. These textiles show tremendous potential for personal thermal management and are widely used in outdoor sports, high-temperature operations and other scenarios. However, the development of fiber products with radiative cooling properties from biomass resources presents a considerable challenge. Herein, the hollow silica/regenerated cellulose composite aerogel fibers with a tree-ring structure (HSiO₂/C@C) were continuously fabricated by a novel strategy combining wet coaxial spinning and atmospheric pressure drying. Regenerated cellulose aerogel mixed with hollow silica as a sheath layer imparts the fibers with strong backscattering properties, higher porosity, and guarantees high solar reflectance (92.6%), high infrared emissivity (96.1%), and improved thermal insulation (0.062<!-- --> <!-- -->W·m^-1K^-1). The relatively dense cellulose aerogel core layer provides the composite fibers with robust mechanical strength (19.4<!-- --> <!-- -->MPa). The outdoor all-day test further demonstrated that the HSiO₂/C@C fibers exhibit high-performance cooling with an average sub-ambient temperature drop of ~1.3°C under 850<!-- --> <!-- -->W·m^-2 solar irradiation and ~ 4.2°C for nighttime. The fabric-covered arm showed a temperature reduction of 4°C compared with that covered with cotton fabric. The passive radiation cooling textile can also apply to buildings, vehicles and other fields contributing to energy saving and environmental protection. In addition, the hydrophobic modified aerogel fabric shows good comprehensive outdoor-services performance, including good air permeability, anti-dust and durability, thus broadening its applicability in complex environments. This scalable and renewable composite aerogel fiber holds promise as the next generation of personal thermal management textiles for all-day superior radiant cooling.","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":"20 1","pages":""},"PeriodicalIF":17.6,"publicationDate":"2025-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142992565","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}

{"title":"High-entropy V-based cathode for high-capacity and long-life aqueous zinc-ion battery","authors":"Xiang Ding, Qiaoying Zhu, Yong Fan, Yibing Yang, Liangwei Liu, Yu Shao, Yi Xiao, Chih-Hung Wu, Lili Han","doi":"10.1016/j.nanoen.2025.110701","DOIUrl":"https://doi.org/10.1016/j.nanoen.2025.110701","url":null,"abstract":"Layered hydrated V₂O₅·xH₂O cathodes are endowed with the advantage of sufficient theoretical specific capacity (589 mA h g^-1) in aqueous zinc-ion batteries (AZIBs), yet accompanied by poor bulk conductivity and structural collapse during long-periodic cycling. Herein, we design a series of high-entropy doped V₂O₅·0.48H₂O by incorporating Na⁺/Al³⁺/Ni²⁺/NH₄⁺/F^- into interlayer simultaneously. In-situ XRD and in-situ DRT analyses profoundly elucidate the enormously enhanced structural reversibility/stability and faster electron/ion transfer efficiency derived from the high-entropy effects. DFT calculations clarify the augmented bulk electronic conductivity stemming from the more abundant electron cloud density near the Fermi level and more conduction and valence bands available for transition. Benefiting from the high-entropy design, the optimal cathode in coin-cells can display competitive discharge capacity of 546 mA h g^-1 at 0.1 C, rate capabilities (458 mA h g^-1@1 C; 322 mA h g^-1@10 C), and cyclic stability (5000 cycles@10 C@98% retention). Also, the pouch-cells with high-load (65 mg) also deliver superior cyclic and rate performance at both room (190 mA h g^-1@1000 cycles@86.8% retention; 25 ℃) and low temperature (171 mA h g^-1@200 cycles@82.3% retention; -20 ℃), manifesting valuable insights for designing ultra-high-capacity V-based cathodes with long-life stability for AZIBs.","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":"52 1","pages":""},"PeriodicalIF":17.6,"publicationDate":"2025-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142992564","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}

{"title":"Radiative cooling technologies toward enhanced energy efficiency of solar cells: Materials, systems, and perspectives","authors":"Jia Wei, Hao Chen, Jingchong Liu, Fuqiang Wang, Cunhai Wang","doi":"10.1016/j.nanoen.2025.110680","DOIUrl":"https://doi.org/10.1016/j.nanoen.2025.110680","url":null,"abstract":"Solar cells (SCs) convert sunlight directly into electricity via the photovoltaic (PV) effect, paving a fossil fuel-free way to meet the increasing demand for renewable sources. However, most solar radiation (~ 80%) is transformed into thermal parasites that heat solar panels, significantly degrading the efficiency and life span of SCs. Passive sky radiative cooling (RC), which cools terrestrial objects by dissipating excessive thermal emission into the ultracold (~ 3<!-- --> <!-- -->K) space, appears as an emerging cooling technology and has attracted considerable attention. As SCs are predominantly engaged in PV conversion during daytime, the incorporation of RC technology enables temperature decrease, subsequently boosting solar-to-electricity efficiency. Besides, integrating RC into SCs allows night cold harvesting that could be employed for daytime thermal management, further improving energy efficiency. Therefore, integrating RC with SCs represents a promising, energy-free way towards enhanced energy efficiency. This review commences with the energy balance within SCs and fundamental principles of RC technologies, summarizes remarkable daytime RC materials for temperature reduction and efficiency improvement of SCs, continues with innovative PV systems that integrate nighttime RC technologies, and finally ends with challenges and perspectives towards enhanced energy efficiency in PV systems via passive RC technologies.","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":"57 1","pages":""},"PeriodicalIF":17.6,"publicationDate":"2025-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142992569","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}

{"title":"An innovative biomimetic technology: Memristors mimic human sensation","authors":"Kun Wang, Mengna Wang, Bai Sun, Chuan Yang, Zelin Cao, Teng Wu, Kaikai Gao, Hui Ma, Wentao Yan, Haoyuan Wang, Longhui Fu, Xiangming Li, Jinyou Shao","doi":"10.1016/j.nanoen.2025.110698","DOIUrl":"https://doi.org/10.1016/j.nanoen.2025.110698","url":null,"abstract":"As a device with tunable resistance states, the memristor has demonstrated significant potential in emulating the plasticity of biosynapses. In recent years, the application of memristors in biomimetic sensory systems has gained widespread attention. This work reviews the research progress of memristors in simulating human senses, particularly in systems involving vision, touch, smell, and hearing. Memristors can not only simulate the perception, storage, and processing of various sensory signals, but also it can integrate with neuromorphic computing and self-learning algorithms to construct multimodal sensory systems. These systems, by integrating information from different sensory channels, can perceive the external environment more intelligently and have wide application prospects in many fields, such as robotics, smart healthcare, neural prosthetics, and augmented reality. Although current research on memristor-based sensory systems faces challenges such as manufacturing variability, randomness in conduction mechanisms, and power consumption during high-frequency operation, continuous developments in materials, structural design, and algorithm optimization are expected to lead to breakthroughs in the future. This work will facilitate the transition of memristor-based sensory systems from laboratory research to real-world applications, driving innovation and progress in biomimetic sensory systems and neuromorphic computing.","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":"57 1","pages":""},"PeriodicalIF":17.6,"publicationDate":"2025-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142990759","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}

{"title":"Boosting contact electro-catalysis efficiency via nano-confinement effect in organic wastewater degradation","authors":"Songhu Ye, Bailin Xiang, Zixi Chen, Haoyu Wang, Li Wen, Yuchao Luo, Zherui Chen, Yi Lu, Qingxia Liu, Zhixiang Chen","doi":"10.1016/j.nanoen.2025.110702","DOIUrl":"https://doi.org/10.1016/j.nanoen.2025.110702","url":null,"abstract":"Contact-electro-catalysis (CEC) technology has emerged as a highly efficient and cost-effective technology for water contaminant degradation, which relies on the advanced oxidation processes (AOPs) induced by dielectric catalytic particles. However, the necessity of using hydrophobic particulate catalysts causes agglomeration issues, hindering the CEC efficiency due to insufficient utilization of reactive oxygen species (ROS). Herein, we synthesized a nanopore-rich and highly dispersed fluorinated catalyst, which showcased a remarkable increase in the kinetic rate of CEC-induced organic pollutants degradation by nearly 1000%. This exceptional performance is primarily attributed to the improved water dispersibility of fluorinated catalysts, which more efficiently activate the catalytic sites without agglomeration hindrance. Meantime, the nanopores facilitate the rapid accumulation and nano-confinement of pollutants within its porous structure, which significantly reduces the mass transfer distance for ROS. This new catalyst design concept, along with the revealed underlying mechanisms, provides key theoretical guidance for the industrial application of CEC technology in the future.","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":"9 1","pages":""},"PeriodicalIF":17.6,"publicationDate":"2025-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142990760","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}

{"title":"Covalent organic framework-immobilized enzymes: A robust engineered catalytic platform for diverse applications","authors":"Fengyi Yang, Pengye Zhang, Jiafu Qu, Yahui Cai, Xiaogang Yang, Chang Ming Li, Jundie Hu","doi":"10.1016/j.nanoen.2025.110682","DOIUrl":"https://doi.org/10.1016/j.nanoen.2025.110682","url":null,"abstract":"Enzymes, as natural catalysts, demonstrate high substrate specificity and catalytic efficiency, making them vital in energy storage, environmental remediation, and health. Consequently, researchers are increasingly focused on developing multifunctional platform that replicate the microenvironments of biological systems. Covalent organic frameworks (COFs)-immobilized enzymes offer a robust platform for catalytic applications due to their well-designed porous structures, molecular editing capabilities, coordinated environments, and excellent biocompatibility. This review offers a comprehensive overview of the robust engineered catalytic platform provided by COFs-immobilized enzymes for diverse catalytic applications. It discusses the advantages of COFs-encapsulated enzyme materials, various strategies for constructing COFs-embedded platforms, methods for functionalized enzyme encapsulation, and strategies for enhancing enzyme activity. Furthermore, it explores recent developments of these materials in diverse catalytic applications, including CO₂ conversion, H₂ production, biocatalysis, tumor therapy, environmental remediation, and organic synthesis reaction. Finally, it highlights the prospects and challenges of COFs-immobilized enzymes for reference.","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":"84 1","pages":""},"PeriodicalIF":17.6,"publicationDate":"2025-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142992567","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}