Energy technology最新文献_第10页

Unlocking the Impact of “Cell Position” on Solid-State Hydrogen Storage: Investigations on an Activated Carbon Electrode Integrated in a Modified Reversible Polymer Electrolyte Membrane Fuel Cell 揭示 "电池位置 "对固态储氢的影响：对集成在改良可逆聚合物电解质膜燃料电池中的活性炭电极的研究

IF 3.6 4区工程技术

Energy technology Pub Date : 2024-08-30 DOI: 10.1002/ente.202400215

Rupinder Singh, Amandeep Singh Oberoi, Talwinder Singh

{"title":"Unlocking the Impact of “Cell Position” on Solid-State Hydrogen Storage: Investigations on an Activated Carbon Electrode Integrated in a Modified Reversible Polymer Electrolyte Membrane Fuel Cell","authors":"Rupinder Singh, Amandeep Singh Oberoi, Talwinder Singh","doi":"10.1002/ente.202400215","DOIUrl":"10.1002/ente.202400215","url":null,"abstract":"The presented maiden experimental study introduces a novel cell position concept for a modified reversible polymer electrolyte membrane fuel cell with an integrated hydrogen storage (H-storage) electrode. The primary focus of the current study is to enhance the H-storage capacity of a carbon-based self-standing electrode by testing it in vertical, horizontally upward, and horizontally downward positions to meet U.S. Department of Energy objectives. The results show that the developed cell achieves the highest electrochemical hydrogen adsorption (H-adsorption) of 1.3 weight percent (wt%) in the horizontal downward position during charging, surpassing the vertical position by 36.1% and outperforming the horizontal upward position by 25.3%. The reversible rates of stored hydrogen are measured as 0.587 wt% in the vertical position, 0.781 wt% in the horizontal upward position, and 0.998 wt% in the horizontal downward position. The cell manages to deliver a peak output of 2.2 V and a maximum current of 0.5 mA during the initial discharging phase. The insights gained from this study on cell positioning are poised to inspire future research efforts aimed at enhancing hydrogen storage capacity and its reversibility.","PeriodicalId":11573,"journal":{"name":"Energy technology","volume":"12 11","pages":""},"PeriodicalIF":3.6,"publicationDate":"2024-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142195764","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

Performance Analysis of the Outdoor Concentrating Photovoltaic–Thermoelectric Coupling System Under Uniform Illumination 室外聚光光伏热电耦合系统在均匀光照下的性能分析

IF 3.6 4区工程技术

Energy technology Pub Date : 2024-08-30 DOI: 10.1002/ente.202400779

Xiaoxiao Yu, Xiaoxue Guo, Yuanyuan Wang, Lan Dong, Zhenbo Wang, Zihua Wu, Huaqing Xie

{"title":"Performance Analysis of the Outdoor Concentrating Photovoltaic–Thermoelectric Coupling System Under Uniform Illumination","authors":"Xiaoxiao Yu, Xiaoxue Guo, Yuanyuan Wang, Lan Dong, Zhenbo Wang, Zihua Wu, Huaqing Xie","doi":"10.1002/ente.202400779","DOIUrl":"10.1002/ente.202400779","url":null,"abstract":"Concentrating photovoltaic–thermoelectric (CPV–TE) coupling system is an efficient solar-to-electric technology, but the nonuniform illumination and temperature caused by the concentrated light have a significant impact on the power generation performance of the cell. This work improves the intensity distribution through the self-made birefringent prism, and further studies the effect of uniform or nonuniform illumination on the power generation performance of CPV–TE system under different light intensities and cooling conditions. The results show that the output power of PV cell at uniform illumination can achieve 14.74% higher than that at nonuniform illumination due to the decline of cell’ surface temperature difference. Meanwhile, the cooling condition can further enhance the output power of PV or TE cell, and weakens the impact of the illumination nonuniformity on the power generation performance of PV cell. Through the joint optimization of uniform illumination and 10 °C cooling condition, CPV–TE coupling system increases the output power by 15.83% at 10 kW m−2. TE device can further enhance the output power by 46.09 mW through the thermoelectric conversion. Surprisingly, the environmental cost from CPV–TE system reduces carbon dioxide emission of 26471.01¥ m−2 every day. The outdoor CPV–TE coupling system has a certain assistance for the practical development.","PeriodicalId":11573,"journal":{"name":"Energy technology","volume":"12 12","pages":""},"PeriodicalIF":3.6,"publicationDate":"2024-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142195694","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

Optimizing Solar Cell Performance: Hybrid Planar-Si/Organic Heterojunction Solar Cells Achieve 14.75% Efficiency Through Dibenzothiophene-Spirobifluorene-Dithienothiophene Insertion Layer Integration 优化太阳能电池性能：通过整合二苯并噻吩-螺二芴-二硫代噻吩插入层，平面硅/有机杂质结混合太阳能电池实现 14.75% 的效率

IF 3.6 4区工程技术

Energy technology Pub Date : 2024-08-30 DOI: 10.1002/ente.202401249

Fahim Ullah, Kamran Hasrat, Sami Iqbal, Shuang Wang

{"title":"Optimizing Solar Cell Performance: Hybrid Planar-Si/Organic Heterojunction Solar Cells Achieve 14.75% Efficiency Through Dibenzothiophene-Spirobifluorene-Dithienothiophene Insertion Layer Integration","authors":"Fahim Ullah, Kamran Hasrat, Sami Iqbal, Shuang Wang","doi":"10.1002/ente.202401249","DOIUrl":"10.1002/ente.202401249","url":null,"abstract":"Hybrid planar-Si/organic heterojunction solar cells have garnered substantial interest due to their potential for producing cost-effective, high-efficiency devices. This study investigates the photophysical properties and application of dibenzothiophene-spirobifluorene-dithienothiophene (DBBT-mCbz-DBT) in enhancing the efficiency of photovoltaic devices. Utilizing ultraviolet–visible and fluorescence spectroscopy, DBBT-mCbz-DBT is analyzed in solutions and doped films, showing maximum absorption at 380 nm and emission at 440 nm. Notably, the photoluminescence intensity in 4,4′-di(9H-carbazol-9-yl)-1,1′-biphenyl films peaks at 40–50% DBBT-mCbz-DBT concentrations, which are selected for solar cell fabrication. Enhanced light absorption and charge transport are observed with a DBBT-mCbz-DBT layer on silicon, significantly improving device performance. The planar silicon/poly(3,4-ethylene dioxythiophene):poly(styrene sulfonate) (Si/PEDOT:PSS) heterojunction solar cells with DBBT-mCbz-DBT exhibit a power conversion efficiency of 14.75%, demonstrating substantial gains over baseline structures. The DBBT-mCbz-DBT layer optimizes energy band alignment, reduces recombination losses, and enhances electron transport, improving overall device efficiency. This research underscores the potential of integrating DBBT-mCbz-DBT in solar cells to achieve higher performance through simple, scalable fabrication methods.","PeriodicalId":11573,"journal":{"name":"Energy technology","volume":"12 11","pages":""},"PeriodicalIF":3.6,"publicationDate":"2024-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142195695","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

High Entropy Alloys: Emerging Materials for Advanced Hydrogen Storage 高熵合金：先进储氢的新兴材料

IF 3.6 4区工程技术

Energy technology Pub Date : 2024-08-30 DOI: 10.1002/ente.202401061

Yi Jiang, Wei Jiang

引用次数: 0

Synthesis of Co–ZnAl‐Layered Double Hydroxide for Effective Activation of Peroxymonosulfate to Degrade Rhodamine B and Methyl Orange from Polluted Water 合成共锌铝层双氢氧化物，以有效活化过一硫酸盐，从而降解污染水中的罗丹明 B 和甲基橙

IF 3.8 4区工程技术

Energy technology Pub Date : 2024-08-29 DOI: 10.1002/ente.202401293

Hafiza Mehwish Rasheed, Chunsheng Ding, Minghua Xu, Bilal Zaman, Xiaowen Ruan, Xiaoqiang Cui

引用次数: 0

Recent Progresses of Battery Thermal Management Systems Based on Phase Change Materials 基于相变材料的电池热管理系统的最新进展

IF 3.6 4区工程技术

Energy technology Pub Date : 2024-08-29 DOI: 10.1002/ente.202400563

Changren Xiao, Jiangyun Zhang, Guoqing Zhang, Chengzhao Yang, Wenzhao Jiang, Youpeng Chen, Chaoqun Tu

引用次数: 0

Co–Mn Bimetallic Metal–Organic Frameworks Nanosheets for Efficient Oxygen Evolution Electrocatalysis 用于高效氧进化电催化的 Co-Mn 双金属金属有机框架纳米片

IF 3.6 4区工程技术

Energy technology Pub Date : 2024-08-27 DOI: 10.1002/ente.202401049

Yongchao Hao, Ling Wang, Shuling Cheng, Huiya Cheng, Qianyun He, Lizhi Yi

{"title":"Co–Mn Bimetallic Metal–Organic Frameworks Nanosheets for Efficient Oxygen Evolution Electrocatalysis","authors":"Yongchao Hao, Ling Wang, Shuling Cheng, Huiya Cheng, Qianyun He, Lizhi Yi","doi":"10.1002/ente.202401049","DOIUrl":"10.1002/ente.202401049","url":null,"abstract":"Developing an efficient oxygen evolution reaction (OER) catalyst is the footstone of many electrochemical energy conversion devices. Herein, a cobalt–manganese bimetallic metal–organic framework (MOF) is developed as an efficient OER catalyst (denoted as Co3Mn1 BDC). The Co3Mn1 BDC nanosheets demonstrate advantages in specific surface area, pore size distribution comparing with monometallic Co BDC and Mn BDC. The performance investigations demonstrate that the doping of Mn in Co-based MOFs facilitates the electrochemical area, charge transfer efficiency, reaction kinetics, and turnover frequency. As a consequence, the Co3Mn1 BDC exhibits a low overpotential of 289 mV at current of 10 mA cm−2 and a favorable Tafel slope of 56.8 mV dec−1 on glassy carbon electrode, which is better than IrO2. When the catalyst is loaded on Ni foam, the overpotential and Tafel slope are further decreased to 231 mV and 50.8 mV dec−1. Moreover, the Raman spectrum confirms that the Co3Mn1 BDC can be transformed into active CoOOH, suggesting the bright prospect in electrocatalysis devices as “precatalyst”.","PeriodicalId":11573,"journal":{"name":"Energy technology","volume":"12 11","pages":""},"PeriodicalIF":3.6,"publicationDate":"2024-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142195697","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

Predicting the Gas Storage Capacity in Shale Formations Using the Extreme Gradient Boosting Decision Trees Method 利用极端梯度提升决策树方法预测页岩层的天然气存储容量

IF 3.6 4区工程技术

Energy technology Pub Date : 2024-08-27 DOI: 10.1002/ente.202400377

Jiaheng Wang, Nong Li, Xiangyu Huo, Mingli Yang, Li Zhang

{"title":"Predicting the Gas Storage Capacity in Shale Formations Using the Extreme Gradient Boosting Decision Trees Method","authors":"Jiaheng Wang, Nong Li, Xiangyu Huo, Mingli Yang, Li Zhang","doi":"10.1002/ente.202400377","DOIUrl":"10.1002/ente.202400377","url":null,"abstract":"Accurate shale gas reserves estimation is essential for development. Existing machine learning (ML) models for predicting gas isothermal adsorption are limited by small datasets and lack verified generalization. We constructed an “original dataset” containing 2112 data points from 11 measurements on samples from 8 formations in 3 countries to develop ML-based prediction models. Similar to previous ML models, total organic matter, pressure, and temperature are characterized as the three most significant features using the mean impurity method. In contrast to previous ML models, the study reveals that these three features are inadequate to be used to make reasonable predictions for the datasets from the measurements different from those used to train the models. Instead, the extreme gradient boosting decision trees (XGBoost) model with two more features (specific surface area and moisture) exhibits good robustness, generalization, and precision in the prediction of gas isothermal adsorption. Overall, An XGBoost model with optimal input features is developed in this work, which exhibits both good performance in gas adsorption prediction and good potential for the estimation of gas storage in shale gas development.","PeriodicalId":11573,"journal":{"name":"Energy technology","volume":"12 10","pages":""},"PeriodicalIF":3.6,"publicationDate":"2024-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142195699","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

Modeling and Optimizing the Drying Process of Electrode Manufacturing for Lithium-Ion Batteries 锂离子电池电极制造干燥过程的建模与优化

IF 3.6 4区工程技术

Energy technology Pub Date : 2024-08-26 DOI: 10.1002/ente.202401146

Yuxin Chen, Haolan Tao, Bing Li, Baorong Li, Cheng Lian, Honglai Liu

引用次数: 0

Enhanced-Performance Electrodes from Biomass-Derived Carbon (Rice Husk) for Printable Perovskite Solar Cells 用于可印刷 Perovskite 太阳能电池的生物质碳（稻壳）高性能电极

IF 3.6 4区工程技术

Energy technology Pub Date : 2024-08-26 DOI: 10.1002/ente.202401081

Minyu Li, Jie Sheng, Wenjun Wu

{"title":"Enhanced-Performance Electrodes from Biomass-Derived Carbon (Rice Husk) for Printable Perovskite Solar Cells","authors":"Minyu Li, Jie Sheng, Wenjun Wu","doi":"10.1002/ente.202401081","DOIUrl":"10.1002/ente.202401081","url":null,"abstract":"In the quest for sustainable energy solutions, printable carbon-based perovskite solar cells (p-MPSCs) are capturing the industry's attention due to their exceptional stability, simplified assembly, and cost-effectiveness. At the heart of this innovation lies the carbon electrode, favored for its straightforward printing and assembly processes, making it an ideal candidate for renewable photovoltaic applications that leverage biomass carbon. This study casts the spotlight on rice husks, a plentiful yet underutilized resource, repurposing them into carbon electrodes for p-MPSCs through a specialized carbonization treatment. A comprehensive examination reveals that the integration of 20% rice husk carbon (RHC) with graphite significantly improves the material's filling and crystalline qualities, diminishes the density of defect states, and strengthens the suppression of nonradiative recombination. These advancements culminate in a notable increase in photovoltaic conversion efficiency, reaching up to 11.49%. This study not only demonstrates the viability of RHC in photovoltaic applications but also supports the efficient use of biomass carbon, contributing to the progression of green energy technologies.","PeriodicalId":11573,"journal":{"name":"Energy technology","volume":"12 11","pages":""},"PeriodicalIF":3.6,"publicationDate":"2024-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142195700","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