Renewable Energy最新文献_第5页

Optimization of defect regulation parameters in CsPbI3 perovskite solar cells via machine learning-assisted response surface methodology 基于机器学习辅助响应面方法的CsPbI3钙钛矿太阳能电池缺陷调节参数优化

IF 9 1区工程技术

Renewable Energy Pub Date : 2025-05-09 DOI: 10.1016/j.renene.2025.123426

Cong Shen , Jiaqi Zhou , Tengling Ye , Peixia Yang , Lijie Sun , Guanying Chen

{"title":"Optimization of defect regulation parameters in CsPbI3 perovskite solar cells via machine learning-assisted response surface methodology","authors":"Cong Shen , Jiaqi Zhou , Tengling Ye , Peixia Yang , Lijie Sun , Guanying Chen","doi":"10.1016/j.renene.2025.123426","DOIUrl":"10.1016/j.renene.2025.123426","url":null,"abstract":"<div><div>All-inorganic CsPbI<sub>3</sub> perovskite solar cells (PSCs) have shown significant progress in power conversion efficiency (PCE). However, defects at grain boundaries and interfaces still limit their performance and stability. Traditional optimization methods, which focus on individual parameters, are time- and energy-consuming and often fail to achieve optimal multi-parameter performance. To address this challenge, we develop machine learning assisted response surface methodology (ML-assisted RSM) to optimize defect regulation parameters. The reliability and accuracy of the RSM-driven optimization can be validated by ML. Furan-2,5-dicarboxylic acid (FDCA) was found to be an effective interfacial defect regulation material on the CsPbI<sub>3</sub> perovskite surface. Using FDCA as the model material to regulate defect, ML-assisted RSM identified optimal conditions (14.26 mM, 103 °C, 9 min), achieving a high PCE of 18.71 %, which aligned closely with the predicted value of 18.68 %. FDCA treatment, which contributed to the “defect healing” effect, improved perovskite quality and reduced non-radiative recombination by interacting -COOH bidentate functional groups with uncoordinated Pb<sup>2+</sup> defects. This study demonstrates the value of ML-assisted RSM for fast and accurate multi-parameter optimization in PSCs, accelerating the development of high-performance and stable PSCs, and providing a robust framework for optimizing other photovoltaic devices.</div></div>","PeriodicalId":419,"journal":{"name":"Renewable Energy","volume":"251 ","pages":"Article 123426"},"PeriodicalIF":9.0,"publicationDate":"2025-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143936788","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Techno-economic analysis of floating ocean current power plant of Haya Strait Indonesia 印尼哈亚海峡漂浮海流电厂技术经济分析

IF 9 1区工程技术

Renewable Energy Pub Date : 2025-05-09 DOI: 10.1016/j.renene.2025.123350

Wulfilla Maxmilian Rumaherang , Hendry Izaac Elim , Altje Latununuwe , Estevanus Kristian Huliselan , Ariviana Lientje Kakerissa

{"title":"Techno-economic analysis of floating ocean current power plant of Haya Strait Indonesia","authors":"Wulfilla Maxmilian Rumaherang , Hendry Izaac Elim , Altje Latununuwe , Estevanus Kristian Huliselan , Ariviana Lientje Kakerissa","doi":"10.1016/j.renene.2025.123350","DOIUrl":"10.1016/j.renene.2025.123350","url":null,"abstract":"<div><div>The real action to mitigate the impact of climate change is to carry out an energy transition from fossil energy to new and renewable energy (NRE). One source of NRE for Indonesia's future is ocean current energy, which requires careful study of energy, technological, economic, environmental, and social potential aspects.</div><div>This paper describes the techno-economic analysis of a floating ocean current power plant (FOCPP) by applying a ducted turbine array system of various sizes according to local bathymetric conditions. Techno-socio-economic analysis of power plants includes ducted turbine energy performance, annual energy production (AEP) value, capital expenditure (CAPEX) and operational expenditure (OPEX), net present value (NPV), and Levelized Cost of Energy (LCOE) as well as payback period (PBP). The analysis was carried out based on the results of testing the ducted turbine prototype in the Haya Strait, Maluku Islands. The analysis results show that the Haya Strait FOCPP has an energy and economic development perspective by applying ducted tidal turbines with a diameter of 1–5.5 m in a six block array. AEP ∼141,145.6 MWh with a Ravg value of ∼204,946,301 (million Rupiah). Gross initial investment costs ≥300 billion Rupiah and PBP ≥6.3 years. FOCPP for small islands is suitable for entering the industrialization and downstream stages.</div></div>","PeriodicalId":419,"journal":{"name":"Renewable Energy","volume":"251 ","pages":"Article 123350"},"PeriodicalIF":9.0,"publicationDate":"2025-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143948570","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Robotic transformation and energy transition in China: A new era of innovation

IF 9 1区工程技术

Renewable Energy Pub Date : 2025-05-09 DOI: 10.1016/j.renene.2025.123353

Esra Nur Akpınar , Mücahit Çitil , Hind Alofaysan , Abdulkadir Barut , Azad Erdem

{"title":"Robotic transformation and energy transition in China: A new era of innovation","authors":"Esra Nur Akpınar , Mücahit Çitil , Hind Alofaysan , Abdulkadir Barut , Azad Erdem","doi":"10.1016/j.renene.2025.123353","DOIUrl":"10.1016/j.renene.2025.123353","url":null,"abstract":"<div><div>This study aims to examine the effects of energy intensity, green technologies, environmentally friendly exports, and robotization on energy transition in China during the period 2010q1-2019q4. The Energy Transition Index (ETI), which is used as the dependent variable, includes renewable energy components such as solar, wind, hydroelectric, and biofuel, making the study a direct contribution to the clean energy literature. In the study, the Carrion-i-Silvestre unit root test and Maki cointegration test were preferred among the econometric tests that take structural breaks into account. DOLS, FMOLS, and CCR estimators were used as long-term estimators. Kernel-Based Regularized Least Squares (KRLS) method and Newey-West Standard Error Regression were used as robustness tests. According to the findings, It was determined that robotization has a positive effect on energy transition. In addition to this finding, it was observed that energy intensity has a negative effect on energy transition, while green technologies and environmentally friendly exports have a positive effect. Another finding is that there have been disruptions in the energy transition since 2015. The findings of the study include policy recommendations for the impact of robotization, green technologies, and environmentally friendly exports on energy transition in China.</div></div>","PeriodicalId":419,"journal":{"name":"Renewable Energy","volume":"251 ","pages":"Article 123353"},"PeriodicalIF":9.0,"publicationDate":"2025-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143941738","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Boosting efficiency of p-i-n perovskite solar cells via enhanced interfacial dipole strength using Al2O3 nanoparticles

IF 9 1区工程技术

Renewable Energy Pub Date : 2025-05-08 DOI: 10.1016/j.renene.2025.123410

Fei Tang , Nanxi Ma , Feiping Lu , Yong Bai , Ziang Wei , Ziyin Chen , Yongxuan Yang , Zhouniu Chen , Yifei Li , Yisi Tang , Weijun Ling , Xiaobin Liu

{"title":"Boosting efficiency of p-i-n perovskite solar cells via enhanced interfacial dipole strength using Al2O3 nanoparticles","authors":"Fei Tang , Nanxi Ma , Feiping Lu , Yong Bai , Ziang Wei , Ziyin Chen , Yongxuan Yang , Zhouniu Chen , Yifei Li , Yisi Tang , Weijun Ling , Xiaobin Liu","doi":"10.1016/j.renene.2025.123410","DOIUrl":"10.1016/j.renene.2025.123410","url":null,"abstract":"<div><div>Interfacial engineering plays a crucial role in enhancing the performance of perovskite solar cells (PSCs) by optimizing energy alignment and charge transport at the interfaces. While self-assembled monolayers (SAMs) have emerged as effective hole transport layers (HTLs) due to their interfacial dipole effect, the impact of dipole strength optimization on device efficiency remains insufficiently explored. In this study, we present a simple yet effective strategy to enhance interfacial dipole strength in p-i-n PSCs by incorporating aluminum oxide nanoparticles (Al<sub>2</sub>O<sub>3</sub> NPs) as spacers within the Me-4PACz interfacial layer. This approach leads to the formation of a thickened dipole layer, significantly improving energy level alignment and charge extraction. As a result, the power conversion efficiency (PCE) of the PSCs increased from 22.61 % in control devices to 25.59 % in optimized devices. Furthermore, we demonstrate the universality of this strategy by applying it to 2PACz and MeO-2PACz based PSCs, achieving efficiency improvements of 7.2 % and 5.8 %, respectively. This work provides new insights into interfacial dipole engineering, offering a scalable and efficient approach to advancing high-performance PSCs.</div></div>","PeriodicalId":419,"journal":{"name":"Renewable Energy","volume":"250 ","pages":"Article 123410"},"PeriodicalIF":9.0,"publicationDate":"2025-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143943042","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Geospatial-based risk analysis of solar plants located in the mountainous region of Gangwon Province, South Korea 韩国江原道山区太阳能发电厂的地理空间风险分析

IF 9 1区工程技术

Renewable Energy Pub Date : 2025-05-08 DOI: 10.1016/j.renene.2025.123408

Manik Das Adhikari, Sang-Guk Yum , Chan-Young Yune

{"title":"Geospatial-based risk analysis of solar plants located in the mountainous region of Gangwon Province, South Korea","authors":"Manik Das Adhikari, Sang-Guk Yum , Chan-Young Yune","doi":"10.1016/j.renene.2025.123408","DOIUrl":"10.1016/j.renene.2025.123408","url":null,"abstract":"<div><div>The rapid decline of fossil resources and environmental concerns have led to an increase in the use of renewable energy. Solar energy is currently the most widely available renewable energy source used in the world and is gaining popularity globally. However, climate change poses an enormous threat even to solar energy infrastructure, as it increases the frequency and intensity of natural disasters. This study investigates the risk of solar photovoltaic power stations (SPVPs) in the Gangwon region of South Korea to landslides, a common hazard in mountainous regions of the Korean Peninsula. The analysis involves evaluating the landslide susceptibility modeling through a logistic regression approach, quantifying the risk of solar plants, and proposing mitigation measures to minimize the vulnerability. We identified that 8.27 % of SPVPs are located in regions characterized by high to severe landslide hazard levels, highlighting their vulnerability to geological events. Utilizing a risk matrix, we determined that 67 % of solar plant sites pose low risk, while 14 %, 9 %, and 10 % are associated with medium, high, and severe risk levels, respectively. Further, we identified that approximately 9.2 % of existing SPVPs required urgent proactive measures, with 12.2 % necessitating proactive measures overall. The proposed framework highlights the importance of proactive risk management measures such as slope stabilization and drainage improvements, which are necessary to safeguard SPVPs from landslides and ensure the long-term viability of renewable energy infrastructure in hazard-prone regions.</div></div>","PeriodicalId":419,"journal":{"name":"Renewable Energy","volume":"251 ","pages":"Article 123408"},"PeriodicalIF":9.0,"publicationDate":"2025-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143948529","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Research on enhancing deep dehumidification by constructing a double-effect synergistic process in an air-cooled desiccant dehumidifier 在风冷式除湿机中构建双效协同过程增强深度除湿的研究

IF 9 1区工程技术

Renewable Energy Pub Date : 2025-05-08 DOI: 10.1016/j.renene.2025.123416

Lin Liu , Lisheng Deng , Jun Li , Yu Bai , Zhaohong He , Xiaofeng Guo , Yugo Osaka , Mitsuhiro Kubota , Hongyu Huang

{"title":"Research on enhancing deep dehumidification by constructing a double-effect synergistic process in an air-cooled desiccant dehumidifier","authors":"Lin Liu , Lisheng Deng , Jun Li , Yu Bai , Zhaohong He , Xiaofeng Guo , Yugo Osaka , Mitsuhiro Kubota , Hongyu Huang","doi":"10.1016/j.renene.2025.123416","DOIUrl":"10.1016/j.renene.2025.123416","url":null,"abstract":"<div><div>Inherent properties of adsorption isotherm itself often restrict the dehumidification capacity of single desiccant. By leveraging the complementarities in the effective humidity range and regeneration temperature between silica gel and EMM-8, the dual desiccants dehumidifier with a double-effect synergistic process was established in this study to enhance deep dehumidification capacity. In order to explore its superiority, a numerical parametric study was conducted to compare dehumidification performance from a comprehensive view of energy and exergy between single silica gel and dual desiccants dehumidifiers via a validated numerical model. Results indicated that with a few exceptions, the dual desiccants dehumidifier is superior in the indices of dehumidification performance, and it is always able to easily reduce air humidity ratio to below the deep dehumidification threshold of 0.0062 kg/kg. Besides, at the regeneration air temperature of 90 °C, the minimum outlet air humidity ratio <span><math><mrow><msub><mi>Y</mi><mrow><mi>a</mi><mn>1</mn><mo>,</mo><mi>a</mi><mi>d</mi><mo>,</mo><mi>o</mi><mi>u</mi><mi>t</mi><mo>_</mo><mi>min</mi></mrow></msub></mrow></math></span> and effective deep dehumidification time <span><math><mrow><msub><mi>t</mi><mrow><mi>e</mi><mi>f</mi><mi>f</mi></mrow></msub></mrow></math></span> reach 0.0024 kg/kg and 189s, achieving an air dew point temperature of minus 6 °C. Under the optimal cooling air flow arrangement, the moisture removal capacity <span><math><mrow><mi>M</mi><mi>R</mi><mi>C</mi></mrow></math></span> and the second law efficiency <span><math><mrow><mi>η</mi></mrow></math></span> reach their maximum of 0.0053 kg/kg and 0.167, respectively, with the dehumidification coefficient of performance <span><math><mrow><mi>D</mi><mi>C</mi><mi>O</mi><mi>P</mi></mrow></math></span> of 1.42.</div></div>","PeriodicalId":419,"journal":{"name":"Renewable Energy","volume":"251 ","pages":"Article 123416"},"PeriodicalIF":9.0,"publicationDate":"2025-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144083950","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Transitioning ecological footprint: Private investment trends in renewable energy projects among G10 nations 转型生态足迹：G10国家可再生能源项目的私人投资趋势

IF 9 1区工程技术

Renewable Energy Pub Date : 2025-05-08 DOI: 10.1016/j.renene.2025.123335

Feipeng Zhuang , Huilin Han , Muhammad Ahsan , Athar Iqbal

{"title":"Transitioning ecological footprint: Private investment trends in renewable energy projects among G10 nations","authors":"Feipeng Zhuang , Huilin Han , Muhammad Ahsan , Athar Iqbal","doi":"10.1016/j.renene.2025.123335","DOIUrl":"10.1016/j.renene.2025.123335","url":null,"abstract":"<div><div>The urgent need for sustainable energy transition and the role of private investment in accelerating renewable energy adoption require deeper analysis, especially in the context of the G10 nations. This study examines private sector investment trends in renewable energy projects from 1990 to 2023, employing Historical Event Analysis (EHA) to assess the impact of macroeconomic stability, regulatory frameworks, and fossil fuel reliance using data from the International Finance Corporation Group's Corporate Partnership in Renewable Energy Initiatives. Findings indicate that private investment is significantly higher in countries with stable economic conditions, strong financial incentives, and well-structured legal frameworks, which facilitate renewable energy deployment, job creation, and economic growth. However, investment disparities persist, highlighting the necessity for unified strategies to attract funding and ensure long-term energy transformation. The results further reveal that periods of economic downturn or policy uncertainty discourage investment, whereas clear regulatory commitments and financial support mechanisms enhance investor confidence. Policymakers must establish a harmonized investment climate, integrating financial incentives and stable policy frameworks, to align business interests with global sustainability objectives effectively.</div></div>","PeriodicalId":419,"journal":{"name":"Renewable Energy","volume":"251 ","pages":"Article 123335"},"PeriodicalIF":9.0,"publicationDate":"2025-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143936786","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Building-integrated photovoltaics through multi-physics synergies: A critical review of optical, thermal, and electrical models in facade applications 通过多物理场协同作用的建筑集成光伏：对立面应用中的光学、热学和电学模型的批判性回顾

IF 9 1区工程技术

Renewable Energy Pub Date : 2025-05-08 DOI: 10.1016/j.renene.2025.123332

Dawei Ruan , Cheng Fan , Mingwei Hu , Yumin Li , Jun Guan

{"title":"Building-integrated photovoltaics through multi-physics synergies: A critical review of optical, thermal, and electrical models in facade applications","authors":"Dawei Ruan , Cheng Fan , Mingwei Hu , Yumin Li , Jun Guan","doi":"10.1016/j.renene.2025.123332","DOIUrl":"10.1016/j.renene.2025.123332","url":null,"abstract":"<div><div>Given the overuse of non-renewable resources and the critical issue of excessive carbon emissions, the efficient utilization of solar energy, a renewable and clean resource, has become a central focus of global attention. Integrating photovoltaics into building facades has garnered significant attention as buildings become increasingly vertical. Various complex, random factors influence the building-integrated photovoltaic (BIPV) facade system, and its underlying mechanisms are highly intricate. This paper comprehensively reviews research progress on BIPV facade system models from optical, thermal, and electrical perspectives. It identifies gaps, optimization strategies, and future research directions. This paper introduces an innovative evaluation framework for these models and presents a quantitative assessment of representative models. In response to the limitations of existing studies, the paper proposes that future research should focus on developing a multi-factor coupled optical-thermal-electrical model driven by both knowledge and data.</div></div>","PeriodicalId":419,"journal":{"name":"Renewable Energy","volume":"251 ","pages":"Article 123332"},"PeriodicalIF":9.0,"publicationDate":"2025-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144071656","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Ultrasound-enhanced activated sludge for selective fermentation to improve bioenergy extraction efficiency from microalgae 超声强化活性污泥选择性发酵提高微藻生物能源提取效率

IF 9 1区工程技术

Renewable Energy Pub Date : 2025-05-08 DOI: 10.1016/j.renene.2025.123415

Yuchen Xing, Yue Shi, Ruxian Wang, Encai Tian, Fan Li, Zheng Lu

{"title":"Ultrasound-enhanced activated sludge for selective fermentation to improve bioenergy extraction efficiency from microalgae","authors":"Yuchen Xing, Yue Shi, Ruxian Wang, Encai Tian, Fan Li, Zheng Lu","doi":"10.1016/j.renene.2025.123415","DOIUrl":"10.1016/j.renene.2025.123415","url":null,"abstract":"<div><div>Selective fermentation effectively addresses issues such as the high energy consumption associated with traditional microalgae cell disruption methods, while maintaining high efficiency. In this study, ultrasound was employed to enhance microbial activity and improve the selective fermentation capacity of <em>Chlorella</em>. The results indicated that, compared to the control group, the ultrasound pretreatment group achieved a 199 % and 152 % increase in the first-order degradation rates of carbohydrates and proteins, enabling ethanol-based fermentation. After 16 h of fermentation, the hydrogen production rate of the ultrasound pretreatment group reached 4.91 mL/g<sub>microalgae</sub>, and the lipid extraction was 0.46 g/g<sub>microalgae</sub>, which were 2.3 and 1.35 times higher than those of the control group, respectively. The biodiesel quality was significantly improved, meeting the biodiesel standards of various countries. High-throughput sequencing results revealed that ultrasound pretreatment enhanced microalgae production capacity by stimulating the activity of functional microorganisms, such as hydrogen-producing bacteria, during the fermentation process.</div></div>","PeriodicalId":419,"journal":{"name":"Renewable Energy","volume":"251 ","pages":"Article 123415"},"PeriodicalIF":9.0,"publicationDate":"2025-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144072403","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Molecular dynamics study on functional group surface modified graphene oxide towards enhanced dielectric properties and thermal conductivity of natural ester insulating oil 官能团表面修饰氧化石墨烯增强天然酯类绝缘油介电性能和导热性能的分子动力学研究

IF 9 1区工程技术

Renewable Energy Pub Date : 2025-05-08 DOI: 10.1016/j.renene.2025.123413

Danquan Lan , Yiyi Zhang , Pengfei Jia , Xianfu Lin , Chuanhui Xu , Heqi Song , Wenchang Wei , Zhicheng Su , Xingtuo Zhang

{"title":"Molecular dynamics study on functional group surface modified graphene oxide towards enhanced dielectric properties and thermal conductivity of natural ester insulating oil","authors":"Danquan Lan , Yiyi Zhang , Pengfei Jia , Xianfu Lin , Chuanhui Xu , Heqi Song , Wenchang Wei , Zhicheng Su , Xingtuo Zhang","doi":"10.1016/j.renene.2025.123413","DOIUrl":"10.1016/j.renene.2025.123413","url":null,"abstract":"<div><div>As a sustainable dielectric fluid critical for next-generation green power grids, natural ester insulating oil requires rational design strategies to overcome performance limitations. This study provided a simulation-guided experimental strategy to enhance the performance of nano-natural ester insulating oil. Through multi-scale molecular dynamics (MD) simulations, we established an atomistic model of 3-aminopropyltriethoxysilane (APTES)-functionalized graphene/natural ester systems, systematically evaluating dielectric response, thermal transport, and interfacial interactions characteristics. Based on the simulation results, nano-modified graphene/natural ester insulating oils with optimized concentration (0.05 g/L) were then prepared, ensuring a more targeted and effective experimental process. The experimental results indicated that the modified natural ester insulating oil exhibited a 30.5 % reduction in dielectric loss degradation factor, a 23.8 % increase in breakdown voltage, and a 10.9 % enhancement in thermal conductivity compared to the pure natural ester insulating oil. Density functional theory (DFT) simulations revealed the microscopic mechanisms of property enhancement in natural ester oils via silanol groups (-<em>Si</em>-<em>OH</em>) and amino groups (-<em>NH</em><sub>2</sub>) functionalization. This work demonstrates the feasibility of using MD simulation to guide the modification of new insulating oil. Compared with traditional preparation methods, this method is expected to be applied to the research on new insulating oil materials in the future.</div></div>","PeriodicalId":419,"journal":{"name":"Renewable Energy","volume":"250 ","pages":"Article 123413"},"PeriodicalIF":9.0,"publicationDate":"2025-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143929456","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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