Nano Energy最新文献

{"title":"Strategies for Optimizing the Efficiency and Selectivity of Photocatalytic Aqueous CO2 Reduction: Catalyst Design and Operating Conditions","authors":"Danping Li, Kaichong Wang, Jia Li, Zibin Li, Han Wang, Yayi Wang","doi":"10.1016/j.nanoen.2024.110460","DOIUrl":"https://doi.org/10.1016/j.nanoen.2024.110460","url":null,"abstract":"Photocatalytic carbon dioxide (CO₂) reduction (CO₂R) technology towards carbon neutrality is a green and sustainable method to produce carbonous feedstocks (e.g., methane, ethanol, acetic acid). However, the relatively low CO₂R efficiency and unsatisfactory selectivity towards target products hinder its scale-up implementation. Photocatalysts and operating conditions are pivotal in tuning the catalytic environment and governing CO₂R activity. Herein, the photocatalytic CO₂R mechanism and conversion pathways for main C₁/C₂/C₃ products are elaborated. Then, the recent advances in promoting CO₂ photoreduction efficiency and selectivity are summarized and discussed, paying special attention to the catalyst design approaches (defect design and interfacing engineering), as well as the operating conditions (e.g., light intensity and wavelength, pH, CO₂ pressure/concentration, solvent volume, dissolved oxygen, and coexisting ions) which directly affect the catalytic environment. Future researches on photocatalytic CO₂R are proposed in terms of efficient catalyst design, intrinsic transformation mechanism, and sustainable application-oriented CO₂R technologies. The insights obtained will advance our mechanistic understanding of regulating CO₂R pathways, and help drive the adoption of sustainable and highly efficient strategies for producing desired products.","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":null,"pages":null},"PeriodicalIF":17.6,"publicationDate":"2024-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142597951","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":"A centrifugal spring mechanism empowers self-adjusting in piezoelectric wind energy harvesting","authors":"Weilin Liao, Xiaosen Su, Fei Fang","doi":"10.1016/j.nanoen.2024.110462","DOIUrl":"https://doi.org/10.1016/j.nanoen.2024.110462","url":null,"abstract":"Piezoelectric wind energy harvesters (PWEHs) offer promises in sustainable green energy supply for micropower electronics. However, traditional PWEHs encounter challenges in terms of high start-up wind speeds, subpar output performance, and narrow bandwidth, hampering their widespread adoption. To enhance the energy capture efficiency, a novel self-adjusting PWEH integrating a centrifugal spring mechanism (CSM) is presented. The CSM consists of a sliding rod, a 304 stainless steel spring, an exciting magnet, and a mass block. Additionally, the PWEH employs a vertical-axis blade design, allowing it to capture wind from different directions. Via theoretical analyses, finite element simulations, and experiments, key parameters of the PWEH are optimized including the CSM additional mass, spring wire diameter, and the configuration of multi-frequency piezoelectric transducers. Results demonstrate that the optimized PWEH works at 1.5<!-- --> <!-- -->m/s and generates 0.45<!-- --> <!-- -->mW, 2.742<!-- --> <!-- -->mW, and 5.973<!-- --> <!-- -->mW at wind speeds of 2<!-- --> <!-- -->m/s, 3.3<!-- --> <!-- -->m/s, and 4.75<!-- --> <!-- -->m/s, respectively. Compared to the unoptimized PWEH, the introduction of the CSM results in an 80.7% enhancement in open-circuit voltage and a 90.9% increase in short-circuit current. Additionally, by utilizing four pairs of piezo-transducers with different resonance frequencies (6.83<!-- --> <!-- -->Hz, 9.38<!-- --> <!-- -->Hz, 12.1<!-- --> <!-- -->Hz, and 14.8<!-- --> <!-- -->Hz), the resonance bandwidth of the PWEH is expanded to 1.5~5.5<!-- --> <!-- -->m/s. The feasibility of PWEH for powering signage, electronic screens, and Bluetooth thermohygrometer is demonstrated. The potential of PWEH in constructing high-precision intelligent wind speed monitoring systems is tested via convolutional neural networks. The study offers a strategy for designing the PWEH for both powering of the microelectronic devices, and intelligent sensing and monitoring of wind.","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":null,"pages":null},"PeriodicalIF":17.6,"publicationDate":"2024-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142597952","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":"The effect of carbon supports on the electrocatalytic performance of Ni-N-C catalysts for CO2 reduction to CO","authors":"Shilong Fu, Boaz Izelaar, Ming Li, Qi An, Min Li, Wiebren de Jong, Ruud Kortlever","doi":"10.1016/j.nanoen.2024.110461","DOIUrl":"https://doi.org/10.1016/j.nanoen.2024.110461","url":null,"abstract":"Carbon-supported nickel and nitrogen co-doped (Ni-N-C) catalysts have been extensively studied as selective and active catalysts for CO₂ electroreduction to CO. Most studies have focused on adjusting the coordination structure of Ni-N_x active sites, while the impact of the carbon supports has often been overlooked. In this study, a series of Ni-N-C catalysts on different carbon supports, including carbon black (CB), multi-walled carbon nanotubes (CNT), and activated nitrogen-doped biochar (ANBC), were synthesized using a ligand-mediated method. The effect of the carbon support on the electrocatalytic performance for CO₂ reduction was investigated at both low current densities, in a H-cell, and high current densities, in a MEA electrolyzer. All of the prepared Ni-N-C catalysts show good faradaic efficiencies (FE) toward CO production (up to ~90%), however, the onset potentials and partial current densities for CO production vary greatly. The textural properties of the carbon support and the distribution of Ni-N_x active sites on the carbon support are demonstrated as the main factors behind the performance differences. In particular, hierarchical porous structures with large specific surface area are helpful to facilitate mass transport and improve the dispersion of active sites, which allows for a better CO₂ reduction performance of Ni-N-ANBC compared to Ni-N-CB and Ni-N-CNT. This study demonstrates the importance of the carbon support for Ni-N-C catalysts and provides new insights into the design of efficient Ni-N-C catalysts for the CO₂RR.","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":null,"pages":null},"PeriodicalIF":17.6,"publicationDate":"2024-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142598011","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":"Arbitrary Directional Triboelectric Nanogenerators: Advanced Energy Harvesting for Sustainable Future","authors":"Qazi Muhammad Saqib, Muhammad Yousuf, Muhammad Noman, Abdul Mannan, Chandrashekhar S. Patil, Jungmin Kim, Swapnil R. Patil, Youngbin Ko, Nilesh R. Chodankar, Jinho Bae","doi":"10.1016/j.nanoen.2024.110456","DOIUrl":"https://doi.org/10.1016/j.nanoen.2024.110456","url":null,"abstract":"Harnessing electricity from our surrounding environments offers a promising solution to the global energy crisis. Triboelectric nanogenerators (TENGs) have proven effective in capturing electrical energy from ambient sources. However, traditional TENGs typically operate in a single direction as triboelectrification occurs on fixed solid surfaces. To address this shortcoming, researchers are actively developing TENGs capable of harvesting energy from multiple directions, utilizing diverse natural forces such as flowing water, ocean waves, wind, sound, and various body movements. This review explores the recent developments of arbitrary directional freely moving particles, wind, rain, and ocean based TENGs, which can generate electrical energy from multi-directional forces as arbitrary directional energy harvesters. Furthermore, the key challenges and future perspectives for scavenging triboelectric energy from arbitrary directions are presented. Finally, the SWOT analysis (strengths S, weaknesses W, opportunities O, and threats T) has been summarized to evaluate arbitrary directional responsive TENG technologies from freely moving particles, wind/breeze movement, rainfall, and ocean waves in TENGs.","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":null,"pages":null},"PeriodicalIF":17.6,"publicationDate":"2024-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142597954","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":"Terraced (K, Na)NbO3 piezocatalysts with superior H2O2 production","authors":"Xuzong Wang, Xiaowei Wei, Qiang Su, Duan Wang, Xin Wang, Qiang Chen, Xiang Lv, Jiagang Wu","doi":"10.1016/j.nanoen.2024.110459","DOIUrl":"https://doi.org/10.1016/j.nanoen.2024.110459","url":null,"abstract":"Piezocatalytic hydrogen peroxide (H₂O₂) production is an emerging and green technology, but complex preparation process of piezocatalyst and low production rate limit its practical application. Herein, we propose a straightforward and efficient strategy, that is, fabricating a novel terraced potassium sodium niobate (KNN-H) by integrating high-energy pendulum ball-milling into the conventional solid-state method, to control the morphology of piezocatalyst and boost its piezocatalytic activities. By exposing a large number of edge sites with higher piezoelectric response and more active sites, KNN-H sample exhibits an extremely high H₂O₂ production rate of 47 μmol/h, about 35 times higher than that of previously reported potassium niobate piezocatalyst. Besides, KNN-H sample also has good effects on dye degradation and bacterial inhibition. Therefore, our strategy provides a paradigm for large-scale fabrication of high-performance perovskite piezocatalysts.","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":null,"pages":null},"PeriodicalIF":17.6,"publicationDate":"2024-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142598013","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":"Tandem Gold/Copper Catalysis and Morphological Tuning via Wrinkling to Boost CO2 Electroreduction into C2+ Products","authors":"Amirhossein Rakhsha, Reza Eslami, Xiaoxuan Yang, Navid Noor, Fatma M. Ismail, Ahmed M. Abdellah, Leyla Soleymani, Drew Higgins","doi":"10.1016/j.nanoen.2024.110457","DOIUrl":"https://doi.org/10.1016/j.nanoen.2024.110457","url":null,"abstract":"Powered by renewable electricity, electrochemical CO₂ reduction (CO₂R) offers a sustainable route for the production of fuels and chemicals that are traditionally produced from fossil fuels. However, designing and developing an efficient electrocatalyst for CO₂-to-C₂₊ product conversion remains challenging. Here, a gold-copper tandem catalyst electrode design is introduced that leverages the structural effects of a wrinkled morphology to improve the CO₂R selectivity and activity in a three-electrode electrochemical cell. The wrinkled electrode structure significantly increases the electrochemical active surface area, resulting in enhanced CO₂R current density for both the singular wrinkled gold and wrinkled copper electrodes. Specifically, there is a 130% increase in partial current density towards CO for a wrinkled gold electrode versus planar gold electrode at -0.7<!-- --> <!-- -->V versus the reversible hydrogen electrode (V_RHE), and a 50% increase in partial current density for C₂₊ products for a wrinkled copper electrode at -1.05 V_RHE compared to a planar copper electrode. A wrinkled gold-copper tandem electrode further enhances the partial current density of C₂₊ products by an additional 60% beyond that of the wrinkled copper electrode (at -1.05 V_RHE), illustrating the synergistic effect of the three-dimensional wrinkled morphology combined with tandem catalysis. Tafel plot analysis revealed effective mass transport for C₂₊ product generation on the optimized wrinkled gold-copper tandem electrode, attributed to the local *CO production by the tandem catalyst, facilitating enhanced C-C coupling on the copper catalyst compared to a purely copper based electrode. Experimental results show that the design and manipulation of the morphology of the tandem catalyst electrode achieved via step-by-step optimization can significantly enhance the selectivity and activity of the catalyst in converting CO₂ to desired fuels and chemicals.","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":null,"pages":null},"PeriodicalIF":17.6,"publicationDate":"2024-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142598009","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 Solar Vapor Evaporator Based on Biologically Natural Composites","authors":"Jianlong Huang, Lanqi Jing, Quan Zhang, Shuwan Zong, Aitang Zhang","doi":"10.1016/j.nanoen.2024.110458","DOIUrl":"https://doi.org/10.1016/j.nanoen.2024.110458","url":null,"abstract":"Fresh water is one of the basic substances on which human society depends for survival and development. With the urgent need to achieve carbon neutrality, novel nanomaterials and environmentally friendly technologies have been explored and continue to drive the sustainable development of energy storage and conversion devices. Natural biomass materials have good photothermal conversion properties and can efficiently absorb sunlight and convert it into thermal energy for seawater evaporation and desalination. The use of natural biomass materials can significantly improve energy efficiency and reduce energy consumption compared to conventional solar desalination technologies. The cost of natural biomass materials is relatively low because they are widely available and renewable. In addition, biomass materials are relatively simple to extract, process and utilize, which reduces equipment maintenance and operating costs. Some natural biomass materials have good weather resistance and stability and can be operated for long periods of time without damage in harsh marine environments. This makes solar desalination systems using these materials more stable and reliable. Nevertheless, there are many problems in the practical application of these materials in desalination. In this paper, we will discuss the advantages and disadvantages of natural biomass materials in solar seawater desalination, and introduce the research progress in recent years with analysis of their practical applications. In the future, we can further research and develop natural biomass materials with higher efficiency and lower cost to meet the pressure of increasing global demand for fresh water while realizing environmental protection and sustainable development.","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":null,"pages":null},"PeriodicalIF":17.6,"publicationDate":"2024-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142597953","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 Developments in Sulfide Solid-State Electrolytes for Lithium and Sodium Solid-State Batteries","authors":"Mohammad Sufiyan Nafis, Zhiming Liang, Sehee Lee, Chunmei Ban","doi":"10.1016/j.nanoen.2024.110447","DOIUrl":"https://doi.org/10.1016/j.nanoen.2024.110447","url":null,"abstract":"Solid-state batteries (SSBs), especially those derived from lithium and sodium, show great promise as the next generation of energy storage devices due to their remarkable energy density, compact electrode architecture, nonflammability, and the use of metallic anodes. The solid-state electrolytes (SSEs), a significant part of SSBs, are essential to their functionality. A family of SSEs known as sulfide-based has been extensively studied for many years as a potential SSE for sodium and lithium SSBs. It offers excellent ionic conductivity, favorable mechanical properties, and ease of manufacturing. Notwithstanding its advantages, it also presents several problems, which require careful consideration for it to be successfully commercialized. This review summarizes the recent advancements in SSEs for lithium and sodium SSBs. It explores how structural engineering strategies impact the electrochemical properties of argyrodites SSEs for lithium SSBs and Na₃PS₄-based SSEs for sodium SSBs. The review provides comprehensive information on successful structural engineering approaches, such as introducing vacancies, mobile ions stuffing, and doping, for both lithium and sodium SSEs. It also discusses the air stability and electrochemical stability against electrodes, offering insights for designing and synthesizing next-generation SSEs that can lead to more durable and efficient energy storage systems.","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":null,"pages":null},"PeriodicalIF":17.6,"publicationDate":"2024-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142594563","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":"A Remote Monitoring System for Wind Speed and Direction Based on Non-Contact Triboelectric Nanogenerator","authors":"Junyao Shen, Ze Yang, Yiyong Yang, Bo Yang, Yuning Song, Xiangrong Cheng, Zhemin Lai, Haohan Zhao, Linhong Ji, Zhao Zhu, Jia Cheng","doi":"10.1016/j.nanoen.2024.110453","DOIUrl":"https://doi.org/10.1016/j.nanoen.2024.110453","url":null,"abstract":"Wind speed and wind direction sensors are crucial sensor categories in the Internet of Things (IoT), particularly vital in fields such as meteorological monitoring, construction engineering, transportation engineering, and ocean engineering. However, power supply remains a key limiting factor for the widespread application of these sensors in large-scale sensor networks. In this paper, a self-powered, non-contact wind speed and direction sensor based on the triboelectric nanogenerator (SD-TENG) is proposed. The optimized wind speed measurement structure has a start-up wind speed as low as 0.2<!-- --> <!-- -->m/s and exhibits good linearity in the range of 0.2-29<!-- --> <!-- -->m/s. Additionally, the sensor demonstrates high temperature and humidity resistance, with a voltage attenuation of 2.4% at 45°C ambient temperature and 9.8% at 95% relative humidity. For wind direction measurement, the design of non-uniform electrodes enhances the recognition capability of different channels. To meet the demands of remote monitoring, we have designed an advanced signal processing circuit that can directly convert the raw output of a wind speed sensor into wind speed information and upload it to a cloud platform via a host. This system not only records and displays wind speed data in real-time but also features historical data storage and alarm functionalities, enhancing the intelligence and automation levels of wind speed monitoring. Additionally, users can access and analyze wind speed data through both computer and mobile devices, ensuring the system's efficiency and reliability. This work provides crucial technical support for the advancement of smart cities, clean energy, and environmental monitoring, thereby promoting the application and dissemination of IoT technology in the environmental field.","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":null,"pages":null},"PeriodicalIF":17.6,"publicationDate":"2024-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142594191","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":"Synergistic Enhancement Effect of G4 and SN in Gel Polymer Electrolyte Reinforced by PET Nonwoven for Lithium Metal Batteries","authors":"Yinuo Yu, Shengyu Qin, Zichen Wang, Minghong Kui, Dong Cheng, Yixian Xiao, Yunxiao Ren, Shuoning Zhang, Jiajun Chen, Xinzhao Xia, Wei Hu, Huai Yang","doi":"10.1016/j.nanoen.2024.110454","DOIUrl":"https://doi.org/10.1016/j.nanoen.2024.110454","url":null,"abstract":"With the increasing demand for power batteries and energy storage devices, developing solid-state lithium metal batteries (LMBs) with high energy density and outstanding safety is urgent. Gel polymer electrolyte (GPE), a quasi-solid polymer electrolyte (SPE), is a currently promising electrolyte candidate for solid-state LMBs due to its outstanding performance. Herein, a solid-state LMB constructed with a GPE containing tetraethylene glycol dimethyl ether (G4) and succinonitrile (SN) is prepared, whose electrochemical performance is enhanced by synergistic enhancement effect of G4 and SN, and mechanical strength is reinforced by a PET nonwoven supporting layer. G2S2-GPE (a GPE contains the equal weight of G4 and SN) has a high room-temperature ionic conductivity of 0.90 mS cm⁻¹ and Young's modulus of about 200<!-- --> <!-- -->MPa, as well as enhanced thermal stability (decomposition temperature of 224 °C). Furthermore, the Li||LiFePO₄ full battery can maintain 136.4 mAh g⁻¹ high capacity with a 94.7% capacity retention rate and 99.9% average coulombic efficiency after 800 cycles at 0.5<!-- --> <!-- -->C. Moreover, high voltage Li||LiNi_0.6Co_0.2Mn_0.2O₂ cell and Li||LiFePO₄ pouch cell employing G2S2-GPE demonstrate satisfactory cycling and safety characteristics, indicating their potential for superior practicability. We believe popularizing this synergistic enhancement strategy in the electrolyte field is beneficial for developing high-performance LMBs.","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":null,"pages":null},"PeriodicalIF":17.6,"publicationDate":"2024-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142588378","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}