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Enhancing Hydrogen Oxidation Reaction Kinetics of Platinum Surfaces by Intermediates Spillover 中间体溢出增强铂表面氢氧化反应动力学
IF 17.6 1区 材料科学
Nano Energy Pub Date : 2025-07-31 DOI: 10.1016/j.nanoen.2025.111354
Guimei Liu, Shiyuan Liu, Ernest Pahuyo Delmo, Weiwei Chen, Jie Wu, Yan Sun, Minglei Lu, Yan Zhang, Ping Gao, Dong Su, Minhua Shao
{"title":"Enhancing Hydrogen Oxidation Reaction Kinetics of Platinum Surfaces by Intermediates Spillover","authors":"Guimei Liu, Shiyuan Liu, Ernest Pahuyo Delmo, Weiwei Chen, Jie Wu, Yan Sun, Minglei Lu, Yan Zhang, Ping Gao, Dong Su, Minhua Shao","doi":"10.1016/j.nanoen.2025.111354","DOIUrl":"https://doi.org/10.1016/j.nanoen.2025.111354","url":null,"abstract":"The sluggish hydrogen oxidation reaction (HOR) of Pt-based catalysts in alkaline conditions necessitates high Pt loadings for desirable performance in the anion exchange membrane fuel cells (AEMFCs). In this study, we leverage the intermediates spillover to decouple elemental steps into two active sites during HOR. I<em>n situ</em> spectroscopy characterizations and theoretical calculations reveal that the Pt sites preferentially activate H<sub>2</sub> molecules to form H* intermediates, which could migrate to adjacent W sites with stronger OH* adsorption, where they are further oxidized to H<sub>2</sub>O. Consequently, the catalyst demonstrates high performance when integrated into an AEMFC as the anode, achieving a high peak power density of 1.41<!-- --> <!-- -->W<!-- --> <!-- -->cm<sup>-2</sup> and 1.05<!-- --> <!-- -->W<!-- --> <!-- -->cm<sup>-2</sup> under H<sub>2</sub>-O<sub>2</sub> and H<sub>2</sub>-air conditions with a low loading (0.1 mg<sub>Pt</sub> cm<sup>-2</sup>), respectively, significantly surpassing that of a Pt/C anode. This study provides possibilities for the rational design of the HOR catalysts via utilizing the intermediates spillover.","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":"54 1","pages":""},"PeriodicalIF":17.6,"publicationDate":"2025-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144747977","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
Doping in 2D heterostructures 二维异质结构中的掺杂
IF 17.1 1区 材料科学
Nano Energy Pub Date : 2025-07-30 DOI: 10.1016/j.nanoen.2025.111350
Felipe M. de Souza , Pankaj Raizada , S. Cathrin Lims , Pardeep Singh , Rohit Kumar , Vatika Soni , Van-Huy Nguyen , Vinoth Kumar Ponnusamy , Ram K. Gupta , Phuong V. Pham
{"title":"Doping in 2D heterostructures","authors":"Felipe M. de Souza ,&nbsp;Pankaj Raizada ,&nbsp;S. Cathrin Lims ,&nbsp;Pardeep Singh ,&nbsp;Rohit Kumar ,&nbsp;Vatika Soni ,&nbsp;Van-Huy Nguyen ,&nbsp;Vinoth Kumar Ponnusamy ,&nbsp;Ram K. Gupta ,&nbsp;Phuong V. Pham","doi":"10.1016/j.nanoen.2025.111350","DOIUrl":"10.1016/j.nanoen.2025.111350","url":null,"abstract":"<div><div>Doping in two-dimensional (2D) materials has become a key strategy to enhance their electronic, optical, and magnetic properties for a wide range of advanced applications. This review presents an in-depth analysis of various doping mechanisms, including substitutional and intercalation doping and surface functionalization, each providing unique advantages in modifying the intrinsic characteristics of 2D heterostructures. We explore how doping influences band potentials, charge migration, electronic structures, and optical and magnetic properties. Additionally, the review covers different synthesis methods for doped 2D heterostructures, such as direct reactions and post-treatment processes, highlighting their role in achieving precise doping. This discussion aims to offer researchers a clear understanding of the development approaches for 2D heterostructures. The review also examines the diverse applications of doped 2D materials in electronics, optoelectronics, electrochemical systems, and photocatalysis, with a focus on how doping enhances device performance and efficiency. Finally, we address the challenges and future prospects of doping strategies to expand the functionality of 2D heterostructures. This paper serves as a valuable resource for researchers and scientists interested in the doping of 2D materials and their potential for technological advancements.</div></div>","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":"144 ","pages":"Article 111350"},"PeriodicalIF":17.1,"publicationDate":"2025-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144737756","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
Triboelectric Sensor for Mid-Frequency Acoustic Signals Detection in Confined Spaces 用于密闭空间中频声信号检测的摩擦电传感器
IF 17.6 1区 材料科学
Nano Energy Pub Date : 2025-07-30 DOI: 10.1016/j.nanoen.2025.111353
Qianxi Yang, Xiaochuan Li, Huake Yang, Yawen Hu, Qianying Li, Xuemei Zhang, Dahu Ren, Yi Xi
{"title":"Triboelectric Sensor for Mid-Frequency Acoustic Signals Detection in Confined Spaces","authors":"Qianxi Yang, Xiaochuan Li, Huake Yang, Yawen Hu, Qianying Li, Xuemei Zhang, Dahu Ren, Yi Xi","doi":"10.1016/j.nanoen.2025.111353","DOIUrl":"https://doi.org/10.1016/j.nanoen.2025.111353","url":null,"abstract":"Acoustic detection in confined spaces is vital for security surveillance, structural diagnostics and biological behavior monitoring. However, the complex acoustic environment in confined spaces—characterized by reflection, reverberation, and attenuation, makes it difficult to accurately acquire specific frequency bands signals. Therefore, it is essential to develop acoustic sensors for confined spaces with high precision, enhanced sensitivity, and strong frequency selectivity, particularly for a widespread and common mid-frequency acoustic signals. In this work, we propose a mid-frequency triboelectric acoustic sensor (MTAS) engineered for 200–3000<!-- --> <!-- -->Hz signal acquisition in confined spaces. A SrTiO₃-doped polyvinylidene fluoride (PVDF) composite film is developed to enhance triboelectric charge density. This enhancement enables the MTAS to exhibit high sensitivity at 60-90<!-- --> <!-- -->dB, along with excellent mid-frequency selectivity. In a cylindrical confined space, the MTAS successfully detected acoustic signals generated from 17 distinct units on a hemispherical surface using a single sensing channel. When combined with a one-dimensional probability density convolutional neural network, the system achieves a 97.86% average recognition rate for sound source localization. This research offers an efficient approach to improve the sensitivity of triboelectric acoustic sensors and expands the potential for sound detection in confined spaces.","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":"14 1","pages":""},"PeriodicalIF":17.6,"publicationDate":"2025-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144747978","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 molecular with triazine platform and triethanol arms for ultra-long cycle life Zn anodes 超长循环寿命锌阳极的三嗪平台和三乙醇臂分子
IF 17.1 1区 材料科学
Nano Energy Pub Date : 2025-07-29 DOI: 10.1016/j.nanoen.2025.111352
Junyi Han , Yini Long , Jiaming Li , Xiao Yu , Nan Li , Shaoyu Zhang , Jiaqi Li , Hedong Gu , Zhanhong Yang
{"title":"A molecular with triazine platform and triethanol arms for ultra-long cycle life Zn anodes","authors":"Junyi Han ,&nbsp;Yini Long ,&nbsp;Jiaming Li ,&nbsp;Xiao Yu ,&nbsp;Nan Li ,&nbsp;Shaoyu Zhang ,&nbsp;Jiaqi Li ,&nbsp;Hedong Gu ,&nbsp;Zhanhong Yang","doi":"10.1016/j.nanoen.2025.111352","DOIUrl":"10.1016/j.nanoen.2025.111352","url":null,"abstract":"<div><div>Aqueous zinc-ion batteries (AZIBs) present an eco-friendly option for large-scale energy storage, but zinc dendrites, interfacial side reactions, and hydrogen evolution impede their practical deployment. This work investigated tris(2-hydroxyethyl) isocyanurate (THEIC) as an electrolyte additive in AZIBs. Enabled by its hydroxyl and carbonyl groups, THEIC adsorbs preferentially on zinc to generate a water-poor inner Helmholtz plane, inhibiting corrosion. Concurrently, solvation sheath remodeling of Zn<sup>2 +</sup> by THEIC diminishes reactive water in the outer Helmholtz plane, effectively suppressing parasitic reactions. The THEIC-optimized electrolyte enables exceptional electrochemical performance: Zn//Cu battery achieves 1300 cycles with 99.5 % average coulombic efficiency, while Zn//Zn symmetric battery maintains stable operation for over 3200 h under 0.5 mA cm<sup>−2</sup> 0.5 mAh cm<sup>−2</sup>. Moreover, the Zn//MnO<sub>2</sub> batteries and Zn//activated carbon (AC) hybrid supercapacitors with THEIC/ZSO electrolyte exhibited excellent stability and enhanced capacity retention. This study explored the synergistic regulation of the inner/outer Helmholtz plane by multifunctional additives, providing guiding significance for the stabilization of the zinc anode in aqueous zinc-ion batteries.</div></div>","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":"144 ","pages":"Article 111352"},"PeriodicalIF":17.1,"publicationDate":"2025-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144737678","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
Charge transport in functional ligand capped nanocrystals and nanoclusters for energy applications 功能配体覆盖纳米晶体和纳米团簇中的电荷输运
IF 17.1 1区 材料科学
Nano Energy Pub Date : 2025-07-29 DOI: 10.1016/j.nanoen.2025.111351
Oluwaseyi Saliu , Niket Powar , Yunhao Xu, Kelly Zervos, Isabella Campbell, Progna Banerjee
{"title":"Charge transport in functional ligand capped nanocrystals and nanoclusters for energy applications","authors":"Oluwaseyi Saliu ,&nbsp;Niket Powar ,&nbsp;Yunhao Xu,&nbsp;Kelly Zervos,&nbsp;Isabella Campbell,&nbsp;Progna Banerjee","doi":"10.1016/j.nanoen.2025.111351","DOIUrl":"10.1016/j.nanoen.2025.111351","url":null,"abstract":"<div><div>Nanocrystals (NCs) and nanoclusters (NCts) have emerged as tunable building blocks for next-generation energy materials due to their size-dependent electronic and ionic properties. This review explores the mechanisms of charge transport in ligand-functionalized NCs and NCts, emphasizing their roles in energy conversion and storage systems such as batteries, supercapacitors, and photovoltaics. The electronic properties are dominated by quantum confinement effects and interparticle coupling, which are in turn modulated by surface ligand chemistry. Ligand selection impacts energy band alignment, trap-state density, and charge mobility, thereby influencing the efficiency of electronic conduction through band-like or hopping transport mechanisms. Simultaneously, ionic transport is shaped by NC lattice structure, surface defects, and compositional heterogeneity. The review outlines how doping, vacancy engineering, and surface strain in NCs create pathways for superionic conduction. Key emphasis is placed on ligand-driven conduction tuning, with strategies ranging from ligand exchange to use of Z-type ligands for trap passivation. The synergistic effects between the organic ligand shell and inorganic core allow precise modulation of both ionic and electronic conductivity, enabling advances in light-emitting diodes, quantum dot solar cells, and solid-state electrolytes. This review consolidates experimental and theoretical insights and highlights future challenges including scalable device integration, stability, and predictive modeling. Ultimately, it aims to inform rational design principles for NC-based functional materials in sustainable energy technologies.</div></div>","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":"144 ","pages":"Article 111351"},"PeriodicalIF":17.1,"publicationDate":"2025-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144737708","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
Butterfly-stacked triboelectric nanogenerator with self-adaptive platform for all-angle weak wave energy harvesting 具有自适应平台的全角度弱波能量收集的蝴蝶堆叠摩擦电纳米发电机
IF 17.1 1区 材料科学
Nano Energy Pub Date : 2025-07-28 DOI: 10.1016/j.nanoen.2025.111347
Hongfang Li , Wei Tang , Jiawei Li , Weiyu Zhou , Honggui Wen , Canrong Xie , Lingyu Wan , Guanlin Liu
{"title":"Butterfly-stacked triboelectric nanogenerator with self-adaptive platform for all-angle weak wave energy harvesting","authors":"Hongfang Li ,&nbsp;Wei Tang ,&nbsp;Jiawei Li ,&nbsp;Weiyu Zhou ,&nbsp;Honggui Wen ,&nbsp;Canrong Xie ,&nbsp;Lingyu Wan ,&nbsp;Guanlin Liu","doi":"10.1016/j.nanoen.2025.111347","DOIUrl":"10.1016/j.nanoen.2025.111347","url":null,"abstract":"<div><div>Traditional wave energy triboelectric nanogenerators (TENGs) employ multi-directional arrays for omnidirectional energy collection but suffer from bulkiness, structural complexity, material redundancy, and poor weak-wave responsiveness. Herein, a bionic-sunflower-inspired directional adjustment strategy based on a self-adaptive platform is proposed. Driven by the Principle of Minimum Resistance, the platform autonomously aligns toward incoming waves without additional electricity consumption, ensuring the novel Butterfly-Stack TENG (BS-TENG) operates efficiently at optimal orientations. Additionally, the system leverages a lever mechanism to transform low-amplitude, high-torque wave energy into high-amplitude, low-torque kinetic energy, thereby enabling sufficient contact-separation for dense triboelectric layers, significantly enhancing energy utilization under weak wave conditions and boosting charge output by 548 % compared to directly floating BS-TENGs. The BS-TENG, fabricated from semi-coated laser-etched Si-Mn spring steel sheets, eliminates internal wiring, frames, and inertia mass. This ultra-lightweight design simplifies fabrication and material consumption, achieving a specific surface area of 6.75 cm² g<sup>−1</sup>. The working mechanism and output characteristics of the platform are systematically investigated, reaching a max-transfer charge of 13.68 μC per single BS-TENG and demonstrating effective weak-wave energy harvesting for powering multiple electronic devices. This proposed strategy is readily integratable with various wave energy TENGs, offering a scalable and cost-efficient solution for weak wave energy harvesting.</div></div>","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":"144 ","pages":"Article 111347"},"PeriodicalIF":17.1,"publicationDate":"2025-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144719800","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
Hollow structures derived from metal-glycerates toward efficient electrochemical energy storage and conversion 由金属甘油衍生的空心结构,用于高效的电化学能量储存和转换
IF 17.1 1区 材料科学
Nano Energy Pub Date : 2025-07-28 DOI: 10.1016/j.nanoen.2025.111348
Yan Zhou , Yihua Liang , Zhuo Zhao , Xinlei Wang , Runnan Guan , Changqing Li , Luyu Yang , Fen Qiao , Junfeng Wang , Zhen Wu , Yongsheng Fu , Jong-Beom Baek
{"title":"Hollow structures derived from metal-glycerates toward efficient electrochemical energy storage and conversion","authors":"Yan Zhou ,&nbsp;Yihua Liang ,&nbsp;Zhuo Zhao ,&nbsp;Xinlei Wang ,&nbsp;Runnan Guan ,&nbsp;Changqing Li ,&nbsp;Luyu Yang ,&nbsp;Fen Qiao ,&nbsp;Junfeng Wang ,&nbsp;Zhen Wu ,&nbsp;Yongsheng Fu ,&nbsp;Jong-Beom Baek","doi":"10.1016/j.nanoen.2025.111348","DOIUrl":"10.1016/j.nanoen.2025.111348","url":null,"abstract":"<div><div>Hollow structures derived from metal-glycerates (MGs) are of particular interest for efficient electrochemical energy storage and conversion (EESCs) applications because they offer distinctive structural features, such as rapid transport paths and internal voids, making them highly promising as materials for electrodes or electrocatalysts. This review systematically summarizes recent advances in various MG-derived hollow structures and their exceptional performance in EESC systems. First, the rational design of various MG-derived hollow structures, including single-shelled, core-shelled, yolk-shelled, double-shelled, and multi-shelled hollow configurations, are introduced. Then, the diverse EESC applications of MG-derived hollow structures, including supercapacitors, metal-ion batteries, lithium-sulfur batteries, and key electrocatalytic processes such as hydrogen evolution reaction, oxygen evolution reaction, and oxygen reduction reaction are systematically discussed, with a particular focus on the underlying structure-property relationships. Finally, insights into the major challenges and prospective solutions for the application of MG-derived hollow structures in EESCs are provided, aiming to inspire further advancements in this promising research field.</div></div>","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":"144 ","pages":"Article 111348"},"PeriodicalIF":17.1,"publicationDate":"2025-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144719849","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
Piezo-phototronic-enhanced ultra-high-density ZnO nanorod array heterojunctions for efficient white light-emitting diodes 用于高效白光发光二极管的压电光电子增强超高密度ZnO纳米棒阵列异质结
IF 17.1 1区 材料科学
Nano Energy Pub Date : 2025-07-28 DOI: 10.1016/j.nanoen.2025.111349
Xinlin Liu , Qiyun Wang , Junling Lv , Lihong Jiang , Gaojie Li , Lei Zhang , Long Jin , Weiqing Yang , Haiyang Zou
{"title":"Piezo-phototronic-enhanced ultra-high-density ZnO nanorod array heterojunctions for efficient white light-emitting diodes","authors":"Xinlin Liu ,&nbsp;Qiyun Wang ,&nbsp;Junling Lv ,&nbsp;Lihong Jiang ,&nbsp;Gaojie Li ,&nbsp;Lei Zhang ,&nbsp;Long Jin ,&nbsp;Weiqing Yang ,&nbsp;Haiyang Zou","doi":"10.1016/j.nanoen.2025.111349","DOIUrl":"10.1016/j.nanoen.2025.111349","url":null,"abstract":"<div><div>White light-emitting diodes (WLEDs) represent a significant advancement over traditional lighting technologies, offering substantial energy savings and contributing to sustainability by reducing power consumption and carbon footprints. Achieving high efficiency in white LEDs while minimizing power consumption is vital for their broader adoption and performance optimization. In this study, we manifest the procedure fabrication of ultra-high-density ZnO nanorod (NR) arrays with a high spatial resolution (spacing of 222 nm, &gt;69,501 PPI, much higher than the state-of-the-art cell phone screens of 400–600 PPI), seamlessly integrated with silicon (Si) heterostructures for WLED applications. The broadband emission profiles spanning ∼435 nm (visible) to 910 nm (NIR) are attributed to the emission from Zn, O, oxygen vacancies in the NRs, heterojunction radiative recombination and bulk Si, as confirmed by DFT calculations, XPS, and Raman spectroscopy. Strategic application of compressive strain induces a tenfold amplification in photon emission rates, governed by piezo-phototronic effect modulated band alignment and strain-dependent carrier transport dynamics. This strain-engineered approach enables tailored light-matter interaction control, establishing a pathway for scalable high-brightness WLED systems. Potential implementations span adaptive optical components, point-of-care diagnostic devices, and photo-responsive therapeutic platforms requiring spatiotemporal light modulation.</div></div>","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":"144 ","pages":"Article 111349"},"PeriodicalIF":17.1,"publicationDate":"2025-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144719799","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
Phytic acid-decorated Ag/NiCo layered double hydroxide for highly active and durable anion exchange membrane water electrolyzer 植酸修饰Ag/NiCo层状双氢氧化物用于高活性耐用阴离子交换膜电解器
IF 17.1 1区 材料科学
Nano Energy Pub Date : 2025-07-27 DOI: 10.1016/j.nanoen.2025.111344
Yan Sun , Shiyuan Liu , Fei Xiao , Fatima El bachraoui , Gongjin Chen , Guimei Liu , Xitang Qian , Mohammad Farhadpour , Wei Xing , Minhua Shao
{"title":"Phytic acid-decorated Ag/NiCo layered double hydroxide for highly active and durable anion exchange membrane water electrolyzer","authors":"Yan Sun ,&nbsp;Shiyuan Liu ,&nbsp;Fei Xiao ,&nbsp;Fatima El bachraoui ,&nbsp;Gongjin Chen ,&nbsp;Guimei Liu ,&nbsp;Xitang Qian ,&nbsp;Mohammad Farhadpour ,&nbsp;Wei Xing ,&nbsp;Minhua Shao","doi":"10.1016/j.nanoen.2025.111344","DOIUrl":"10.1016/j.nanoen.2025.111344","url":null,"abstract":"<div><div>Anion exchange membrane water electrolyzer (AEMWE) represents the cleanest and most cost-competitive pathway to generate hydrogen with zero carbon emission. However, the poor activity and durability of oxygen evolution reaction (OER) electrocatalyst in the anode result in the low performance of AEMWE. In this study, we design an electrocatalyst comprising silver nanoparticles anchored in phytic acid-decorated NiCo layered double hydroxide (Ag/NiCo LDH-PA) to address this limitation. The AEMWE equipped with Ag/NiCo LDH-PA anode achieves 1 A cm<sup>−2</sup> and 5 A cm<sup>−2</sup> at ultralow potentials of 1.65 V and 2.04 V, respectively. Additionally, it operates continuously at an industrial current density of 1 A cm<sup>−2</sup> for 650 h. Experimental and theoretical studies reveal that the generated oxygen vacancies and surface-absorbed phosphate ions from phytic acid could efficiently stabilize active sites and reduce the energy barriers of reaction, thereby enhancing the OER performance. These results highlight the importance of surface modification in LDH materials for highly active and durable electrocatalyst development and accelerate the broad deployment of AEMWE.</div></div>","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":"144 ","pages":"Article 111344"},"PeriodicalIF":17.1,"publicationDate":"2025-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144712444","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
Calibration strategy of energy harvesting technology to real-timely power sensors keeping their inherent high accuracy 能量采集技术对实时功率传感器保持其固有高精度的校准策略
IF 17.1 1区 材料科学
Nano Energy Pub Date : 2025-07-27 DOI: 10.1016/j.nanoen.2025.111346
Hao Sun , Jun Ma , Jiayue Sun , Jinwan Chen , Yiwen Wang , Yongkang Zhang , Jiling Zhao , Shuhai Liu , Juan Wen , Yong Qin
{"title":"Calibration strategy of energy harvesting technology to real-timely power sensors keeping their inherent high accuracy","authors":"Hao Sun ,&nbsp;Jun Ma ,&nbsp;Jiayue Sun ,&nbsp;Jinwan Chen ,&nbsp;Yiwen Wang ,&nbsp;Yongkang Zhang ,&nbsp;Jiling Zhao ,&nbsp;Shuhai Liu ,&nbsp;Juan Wen ,&nbsp;Yong Qin","doi":"10.1016/j.nanoen.2025.111346","DOIUrl":"10.1016/j.nanoen.2025.111346","url":null,"abstract":"<div><div>Energy harvesting technologies, such as the triboelectric nanogenerator (TENG), which aims to scavenge high-entropy energy from the human body and living environment to power sensors, are becoming increasingly important in fields like healthcare, environmental monitoring, and wearable sensing. Since the collectable energies in living environment are typically irregular, scavenging them to power the widely distributed sensors while maintaining their inherent high accuracy requires complex power management with excessive power consumption, which makes it difficult even impossible for energy harvesting technology to be applied in many scenarios like wearable applications that generally require real-time sensing miniaturization, lightweight, and portability. To conquer this challenge, we proposed a calibration strategy (CS) that utilizes a shunt circuit to monitor the output of energy harvesting and calibrate the sensing signal, achieving real-time high-precision sensing. Our theoretical, computational, and experimental results demonstrate that CS enables TENG to function as a constant voltage source, capable of powering various commercial sensors (temperature sensors, opto-sensors, and humidity sensors) in real time. The sensing relative error achieved by CS can be as low as 0.87 %, a level not previously attained in real-time powered sensors. As a proof of concept, we constructed a wearable multi-modal sensing system powered by the CS enhanced TENG, capable of real-time monitoring human motion (movement cadence, force on foot, surface temperature and relative humidity of skin) and environmental (light intensity, temperature, and relative humidity). This finding provides an effective strategy for energy harvesting technology to power sensors in real time while maintaining high accuracy, significantly advancing the practical application of energy-harvesting-based sensing systems.</div></div>","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":"144 ","pages":"Article 111346"},"PeriodicalIF":17.1,"publicationDate":"2025-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144712443","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
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