Energy technology最新文献_第5页

High-Sulfur-Loading Gel Cathode Employing a Self-Supporting Composite Matrix for Lithium-Polysulfide Batteries 采用自支撑复合基质的高硫负载凝胶阴极锂-聚硫电池

IF 3.6 4区工程技术

Energy technology Pub Date : 2024-12-14 DOI: 10.1002/ente.202401556

Cong Li, Yan Yuan, Zhengqian Li, Yaxin Kong, Hai Lu

引用次数: 0

Synergistic Effect of a Ni/Al2O3+YSZ Nanocomposite for the Steam Reforming of Biogas in the Presence of Electric Fields 镍/Al2O3+YSZ 纳米复合材料在电场作用下对沼气进行蒸汽转化的协同效应

IF 3.6 4区工程技术

Energy technology Pub Date : 2024-12-14 DOI: 10.1002/ente.202401074

Shin Wook Kang, Hack-Keun Lee, Je Man Park, Jongkyu Kang, Kyung Hee Oh, Ji Chan Park, Su Ha, Jung-Il Yang, Oscar Marin-Flores

{"title":"Synergistic Effect of a Ni/Al2O3+YSZ Nanocomposite for the Steam Reforming of Biogas in the Presence of Electric Fields","authors":"Shin Wook Kang, Hack-Keun Lee, Je Man Park, Jongkyu Kang, Kyung Hee Oh, Ji Chan Park, Su Ha, Jung-Il Yang, Oscar Marin-Flores","doi":"10.1002/ente.202401074","DOIUrl":"https://doi.org/10.1002/ente.202401074","url":null,"abstract":"\u0000There is an increasing interest in using biogas as a renewable energy source to produce green hydrogen via steam reforming. The high-energy consumption associated with this process has motivated the pursuit of alternative approaches to process raw biogas at lower operating temperatures and without the need for large amounts of steam to prevent catalyst deactivation. The present study discusses the results obtained for the steam reforming of raw biogas in the presence of electric fields, using a nanocomposite catalytic material prepared by physically mixing yttria-stabilized zirconia and a Ni/Al2O3 catalyst. The experiments are conducted using a parallel plate capacitor reactor operated at 700 °C and 1 atm. The results indicate that by applying an external electric field (EEF) with a DC voltage of 1.9 kV and a current of 9 mA, a substantial increase in the rates of reaction can be attained. The conversions obtained for CH4 and CO2 are higher than the equilibrium values calculated in the absence of an EEF by 23% and 17%, respectively. This shift in the equilibrium is attributed to internal electric fields (IEFs) resulting from the interaction between YSZ and Ni/Al2O3, which leads to the creation of an interfacial nanopore structure that could increase the local IEF strength.","PeriodicalId":11573,"journal":{"name":"Energy technology","volume":"13 4","pages":""},"PeriodicalIF":3.6,"publicationDate":"2024-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ente.202401074","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143793845","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Synthesis and Characterization of Erythritol-Based Nanoencapsulated Phase-Change Materials for High-Temperature Latent Functional Thermal Fluid 赤藓糖醇基高温潜热功能流体纳米包封相变材料的合成与表征

IF 3.6 4区工程技术

Energy technology Pub Date : 2024-12-12 DOI: 10.1002/ente.202401370

Yingbiao Yuan, Jun Li, Piao Wang, Liyuan Zhang, Haidong Ju, Renjie Chen

{"title":"Synthesis and Characterization of Erythritol-Based Nanoencapsulated Phase-Change Materials for High-Temperature Latent Functional Thermal Fluid","authors":"Yingbiao Yuan, Jun Li, Piao Wang, Liyuan Zhang, Haidong Ju, Renjie Chen","doi":"10.1002/ente.202401370","DOIUrl":"https://doi.org/10.1002/ente.202401370","url":null,"abstract":"Erythritol-based nanocapsules with a phase-change temperature of 120 °C are successfully prepared under very mild conditions. The nanocapsules are produced via multiple crystallization precipitations from a saturated erythritol aqueous solution, followed by SiO2 coating using a sol–gel method. Their nanostructure and elemental composition are characterized using scanning electron microscopy and energy-dispersive X-ray spectroscopy. The latent heat of the nanocapsules is measured with a differential scanning calorimeter. The erythritol nanocapsules, with an average size of ≈220 nm, exhibit a melting enthalpy of 192.7 J g−1. Notably, the supercooling degree of the nanocapsules is reduced by ≈30.0 °C compared to pure erythritol. After 200 thermal cycles, the heat storage performance of the nanocapsules shows only a 7.6% decrease. A latent heat functional thermal fluid, suitable for high-temperature heat transfer, is prepared by dispersing the nanocapsules in silicone oil. The thermal conductivity and specific heat capacity of this fluid increase by 20.5% and 283.3%, respectively, compared to pure silicone oil. These findings demonstrate that erythritol nanocapsules significantly enhance the thermal properties of high-temperature heat transfer fluids, highlighting their potential for high-temperature heat storage and transfer application.","PeriodicalId":11573,"journal":{"name":"Energy technology","volume":"13 5","pages":""},"PeriodicalIF":3.6,"publicationDate":"2024-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143938923","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Scope of Utilizing Carotenoids for Enhanced Performance in Biohybrid Perovskite Solar Cells: A Computational Study 利用类胡萝卜素提高生物混合型过氧化物太阳能电池性能的范围：计算研究

IF 3.6 4区工程技术

Energy technology Pub Date : 2024-12-12 DOI: 10.1002/ente.202401829

Satyanarayana Reddy Battula, Prasanta Kumar Das, Ramkrishna Sen

{"title":"Scope of Utilizing Carotenoids for Enhanced Performance in Biohybrid Perovskite Solar Cells: A Computational Study","authors":"Satyanarayana Reddy Battula, Prasanta Kumar Das, Ramkrishna Sen","doi":"10.1002/ente.202401829","DOIUrl":"https://doi.org/10.1002/ente.202401829","url":null,"abstract":"Natural photosynthesis, driven by molecular machines that have continuously evolved over a long period, is the best-known efficient process of harvesting sunlight. Photosynthetic pigments in plants, algae, and cyanobacteria have remarkably higher quantum efficiencies than corresponding synthetic and semisynthetic materials used in photovoltaic cells. The antioxidative and intrinsic properties of natural pigments like carotenoids make them suitable for new-generation sustainable energy and green electronics applications. In this computational study, an attempt has been made to understand the scope of carotenoids as an additive to the active layer and/or eco-friendly alternatives to the hole transport materials (HTM) like Spiro-MeOTAD in preparing perovskite solar cells. Accordingly, quantum and moleculer mechanical simulations are done to evaluate and compare the optoelectronic parameters of some easily available carotenoids vis-à-vis some noncarotenoids like betacyanin, xylindein, and Spiro-MeOTAD. HOMO–LUMO energy levels of carotenoids aligned well with those of perovskite. In addition, their light absorption spectra are also found to be complementary, and hence, the carotenoids can exhibit tandem behavior in absorbing visible light along with perovskite materials. Hole reorganization energies (λ) of some carotenoids like capsorubin, capsanthin, and violaxanthin are almost equivalent to Spiro-MeOTAD's. Calculated glass transition temperatures (Tg) of carotenoids indicate their thermophysical stability during peak summer.","PeriodicalId":11573,"journal":{"name":"Energy technology","volume":"13 4","pages":""},"PeriodicalIF":3.6,"publicationDate":"2024-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143793871","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Real-Time Energy Management Strategy for Fuel Cell/Battery Plug-In Hybrid Electric Buses Based on Deep Reinforcement Learning and State of Charge Descent Curve Trajectory Control 基于深度强化学习和充电状态下降曲线轨迹控制的燃料电池/插电式混合动力客车实时能量管理策略

IF 3.6 4区工程技术

Energy technology Pub Date : 2024-12-12 DOI: 10.1002/ente.202401696

Jing Lian, Deyao Li, Linhui Li

{"title":"Real-Time Energy Management Strategy for Fuel Cell/Battery Plug-In Hybrid Electric Buses Based on Deep Reinforcement Learning and State of Charge Descent Curve Trajectory Control","authors":"Jing Lian, Deyao Li, Linhui Li","doi":"10.1002/ente.202401696","DOIUrl":"https://doi.org/10.1002/ente.202401696","url":null,"abstract":"In order to reduce the energy consumption of fuel cell/battery plug-in hybrid electric buses and prolong the service life of fuel cell and power battery, this article proposes a multiobjective real-time energy management strategy (EMS) based on deep reinforcement learning and state of charge (SOC) descent curve trajectory control. First, the demand curve based on power is derived from the operational data collected from a bus in Dalian, and a set of SOC reference decline curves based on mileage is formulated. Second, a multiobjective cost function is constructed to consider hydrogen consumption cost, power consumption cost, fuel cell lifespan, and power battery lifespan. Finally, a comprehensive dynamic decision Q network (CDDQN) framework based on double deep Q network (DDQN) is established, a series of deep reinforcement learning EMS that integrate CDDQN with SOC trajectory control are designed, and they are validated through experimental analysis. The results demonstrate that this strategy exhibits excellent real-time performance and economic efficiency. Compared with the comparison algorithms rule algorithm, equivalent consumption minimization strategy, finite-step dynamic programming (DP), and DDQN proposed herein, the economy is increased by 15.08, 13.48, 8.81, and 3.07%, respectively, and reaches 94.00% of the economy of the ideal optimal solution DP.","PeriodicalId":11573,"journal":{"name":"Energy technology","volume":"13 4","pages":""},"PeriodicalIF":3.6,"publicationDate":"2024-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143793873","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Methanogen Biocathode Microbial Fuel Cell System That Simultaneously Achieves Cattle-Barn Wastewater Treatment and Carbon Dioxide Utilization 同时实现牛棚废水处理和二氧化碳利用的产甲烷菌生物阴极微生物燃料电池系统

IF 3.6 4区工程技术

Energy technology Pub Date : 2024-12-12 DOI: 10.1002/ente.202401558

Yuta Nakayasu, Hiroto Nakano, Masaki Umetsu, Koji Yokoyama, Hideyuki Takahashi, Chika Tada

{"title":"Methanogen Biocathode Microbial Fuel Cell System That Simultaneously Achieves Cattle-Barn Wastewater Treatment and Carbon Dioxide Utilization","authors":"Yuta Nakayasu, Hiroto Nakano, Masaki Umetsu, Koji Yokoyama, Hideyuki Takahashi, Chika Tada","doi":"10.1002/ente.202401558","DOIUrl":"https://doi.org/10.1002/ente.202401558","url":null,"abstract":"Microbial fuel cells (MFCs) present a promising alternative to traditional activated sludge treatment for livestock wastewater, offering a carbon-neutral, sustainable approach to wastewater management. Activated sludge treatment requires significant energy input for aeration and produces unpleasant odors. MFCs eliminate the need for energy-intensive aeration, simultaneously generating energy during wastewater treatment. Platinum-based electrodes commonly used in the cathode of MFCs pose a significant cost barrier, necessitating advancements in electrode materials for practical, large-scale application. This study reports on the performance of a continuous methanogen biocathode MFC system engineered to simultaneously treat cattle-barn wastewater and utilize carbon dioxide without 2-bromoethanesulfonic acid (BES). Carbon felt treated with nitric acid without BES successfully reduces methane production by 93%. An MFC configuration utilizing nitric acid-treated carbon felt as the anode and an oak-derived carbon electrode as the cathode effectively treat wastewater and convert CO2 to methane, yielding a power density of 5.5 mW m−2 and Coulombic efficiency of 7.3%, approximately twice those without nitric acid treatment and surpassing even the performance of the system with BES treatment. This system represents a promising, low-cost, and environmentally sustainable approach to renewable energy production and livestock wastewater treatment.","PeriodicalId":11573,"journal":{"name":"Energy technology","volume":"13 4","pages":""},"PeriodicalIF":3.6,"publicationDate":"2024-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ente.202401558","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143793872","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Synthesis-Driven Enhancement in Energy Storage Performance of Copper Transition Metal Phosphates for Hybrid Battery-Supercapacitor Systems 合成驱动的用于混合电池-超级电容器系统的过渡金属磷酸盐铜储能性能的提升

IF 3.6 4区工程技术

Energy technology Pub Date : 2024-12-10 DOI: 10.1002/ente.202401761

Anique Ahmed, Muhammad Ramzan Abdul Karim, Muhammad Usman

{"title":"Synthesis-Driven Enhancement in Energy Storage Performance of Copper Transition Metal Phosphates for Hybrid Battery-Supercapacitor Systems","authors":"Anique Ahmed, Muhammad Ramzan Abdul Karim, Muhammad Usman","doi":"10.1002/ente.202401761","DOIUrl":"https://doi.org/10.1002/ente.202401761","url":null,"abstract":"The tremendous advancements in science and technology have resulted in the invention of electronic devices that require greater energy storage capabilities. Hybrid supercapacitors (SCs) gain promising interest due to their exceptional electrochemical performance similar to batteries (high-energy density) and SCs (high-power density). The excellent performance of the electrode material is significantly influenced by the employed synthesis route. The copper phosphate (Cu3(PO4)2) nanomaterials are synthesized using hydrothermal and sonochemical techniques. Two- and three-electrode configurations are utilized to evaluate the electrochemical performance of the as-prepared nanomaterials. An incredible specific capacity of 443.86 C g−1 at 1.4 A g−1 is achieved through sonochemically obtained nanomaterial (S2). In two-electrode configuration, S2 is used as a positive electrode material to fabricate an asymmetric device, which provides an energy density of 51.2 Wh kg−1 and power density of 6800 W kg−1 at 0.9 and 8.0 A g−1, respectively. The device also demonstrates an exceptional capacity retention of 93.45% after 1000 galvanostatic charge–discharge cycles at 5 A g−1. Overall, the outcomes suggest that the sonochemical method is the most effective approach for the preparation of nanomaterials for next-generation energy storage applications.","PeriodicalId":11573,"journal":{"name":"Energy technology","volume":"13 4","pages":""},"PeriodicalIF":3.6,"publicationDate":"2024-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143793421","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Machine Learning-Assisted Optimization of Additive Engineering in FAPbI3-Based Perovskite Solar Cells: Achieving High Efficiency and Long-Term Stability 基于fapbi3的钙钛矿太阳能电池增材工程的机器学习辅助优化：实现高效率和长期稳定性

IF 3.6 4区工程技术

Energy technology Pub Date : 2024-12-10 DOI: 10.1002/ente.202401684

Weihua Qu, Qiang Xie, Yufeng Chen

引用次数: 0

Design of Chitin Partial Dissolution System for Construction of High-Efficiency Energy Storage Porous Carbon 构建高效储能多孔碳的几丁质部分溶解体系设计

IF 3.6 4区工程技术

Energy technology Pub Date : 2024-12-10 DOI: 10.1002/ente.202401599

Zhuoling Gu, Zhigang Xu, Yidan Jing, Taixi Li, Xinran Gai, Deng, Deqian Meng, Yunzhi Hu, Guochu Tang, Xiaomin Zhang

{"title":"Design of Chitin Partial Dissolution System for Construction of High-Efficiency Energy Storage Porous Carbon","authors":"Zhuoling Gu, Zhigang Xu, Yidan Jing, Taixi Li, Xinran Gai,  Deng, Deqian Meng, Yunzhi Hu, Guochu Tang, Xiaomin Zhang","doi":"10.1002/ente.202401599","DOIUrl":"https://doi.org/10.1002/ente.202401599","url":null,"abstract":"Chitin is a cost-effective and abundant resource, enriched with nitrogen and oxygen elements, making it an ideal precursor for carbon-based materials. However, traditional methods for preparing activated carbon from chitin often require substantial amounts of activators and complex carbonization processes, leading to suboptimal energy storage efficiency. This study presents a partial dissolution system achieved by modulating the mass ratio of chitin to activators (KOH and urea) and optimizing freeze-thaw cycles. When chitin/KOH/urea is mixed at a 1:1:1.5 mass ratio and subjected to three freeze-thaw cycles, the resulting porous carbon demonstrates a high specific surface area of 1783 m2 g−1 with significant N (4.75%) and O (11.16%) doping. The electrode achieves a specific capacitance of 309.1 F g−1 at 0.5 A g−1 in a three-electrode system with 6 m KOH as the electrolyte. After 5000 charge–discharge cycles at 5 A g−1, the capacitance retention rate remains at 91.08%, indicating excellent cycling stability. When assembled into a symmetrical supercapacitor, it exhibits an energy density of 5.69 Wh kg−1 at a power density of 4996.1 W kg−1, demonstrating remarkable energy storage performance. This work introduces a novel method for preparing chitin-derived porous carbon materials.","PeriodicalId":11573,"journal":{"name":"Energy technology","volume":"13 4","pages":""},"PeriodicalIF":3.6,"publicationDate":"2024-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143793420","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Biowaste Sea Shells-Based Triboelectric Nanogenerator: Sustainable Approach for Efficient Mechanical Energy Harvesting 基于生物废物贝壳的摩擦电纳米发电机：高效机械能量收集的可持续方法

IF 3.6 4区工程技术

Energy technology Pub Date : 2024-12-10 DOI: 10.1002/ente.202401333

Lakshmi Suneetha Vikram, Supraja Potu, Durga Prasad Kasireddi A. K., Uday Kumar Khanapuram, Haranath Divi, Rakesh Kumar Rajaboina

{"title":"Biowaste Sea Shells-Based Triboelectric Nanogenerator: Sustainable Approach for Efficient Mechanical Energy Harvesting","authors":"Lakshmi Suneetha Vikram, Supraja Potu, Durga Prasad Kasireddi A. K., Uday Kumar Khanapuram, Haranath Divi, Rakesh Kumar Rajaboina","doi":"10.1002/ente.202401333","DOIUrl":"https://doi.org/10.1002/ente.202401333","url":null,"abstract":"Waste-to-energy research is crucial for reducing environmental pollution and achieving a greener planet. Among many waste-to-energy technologies, triboelectric nanogenerators (TENGs) have attracted much attention in using waste materials for energy production in the last decade. This study presents the first reported use of biowaste sea shells (BSS) in the development of TENGs. For the fabrication of the TENG, BSS powder is attached to aluminum tape to act as one triboelectric layer and silicone rubber to serve as the opposite triboelectric layer. The BSS-TENG device produces an output voltage and current of ≈200 V and 40 μA, respectively. The power density achieved by the fabricated TENG is 948 mW m−2. The output of the TENG is utilized in a powering series connected 240 LEDs momentarily for each tapping. This study not only offers a sustainable and cost-effective material for TENG assembly, but also opens up new avenues for research into energy harvesting utilizing biowaste, with the potential for future applications in powering small-scale devices and contributing to sustainable energy solutions.","PeriodicalId":11573,"journal":{"name":"Energy technology","volume":"13 5","pages":""},"PeriodicalIF":3.6,"publicationDate":"2024-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143938983","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0