Frontiers in Energy最新文献_第2页

Bird skeleton-inspired 3D hollow diamond-enhanced PEG composite PCM for photothermal conversion and thermal management 鸟骨架启发的3D空心钻石增强PEG复合材料PCM光热转换和热管理

IF 3.1 4区工程技术

Frontiers in Energy Pub Date : 2025-03-20 DOI: 10.1007/s11708-025-0991-7

Zihao Zhao, Xurui Feng, Daili Feng, Chengming Li, Yanhui Feng, Junjun Wei

{"title":"Bird skeleton-inspired 3D hollow diamond-enhanced PEG composite PCM for photothermal conversion and thermal management","authors":"Zihao Zhao, Xurui Feng, Daili Feng, Chengming Li, Yanhui Feng, Junjun Wei","doi":"10.1007/s11708-025-0991-7","DOIUrl":"10.1007/s11708-025-0991-7","url":null,"abstract":"<div>The use of porous skeletons for encapsulating phase change materials (PCMs) is an effective approach to addressing issues such as leakage, low thermal conductivity, and poor photothermal conversion efficiency. Inspired by the hollow skeletal structure found in birds in nature, high-quality 3D interconnected hollow diamond foam (HDF) was fabricated using a series of processes, including microwave plasma chemical vapor deposition (CVD), laser perforation, and acid immersion. This HDF was then used as a scaffold to encapsulate PEG2000. The results demonstrate that HDF significantly reduces the supercooling degree and latent heat discrepancy of PEG2000. Compared to pure PEG2000, the thermal conductivity of the HDF/PEG increased by 378%, while its latent heat reached 111.48 J/g, accompanied by a photothermal conversion efficiency of up to 86.68%. The significant performance improvement is mainly attributed to the combination of the excellent properties of the diamond with the inherent advantages of the 3D interconnected structure in HDF, which creates a high-conductivity transport network inside. Moreover, the HDF/PEG composite extends the temperature cycling time of electronic components by 4 times for heating and 2.3 times for cooling, thereby prolonging the operational lifetime of electronic devices. HDF/PEG offers an integrated solution for solar energy collection, photothermal conversion, heat dissipation in electronic components, and thermal energy transfer/storage. This innovative approach provides innovative ideas for the design and fabrication of composite PCMs and has great application potential, such as solar energy utilization, thermal management, and thermal energy storage.</div>","PeriodicalId":570,"journal":{"name":"Frontiers in Energy","volume":"19 2","pages":"227 - 239"},"PeriodicalIF":3.1,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143925687","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

A carbon dioxide energy storage system with high-temperature graded heat storage structure: Thermodynamic intrinsic cycle construction and performance analysis 高温分级蓄热结构的二氧化碳储能系统：热力学固有循环构建与性能分析

IF 3.1 4区工程技术

Frontiers in Energy Pub Date : 2025-03-15 DOI: 10.1007/s11708-025-0995-3

Jiahao Hao, Pingyang Zheng, Yanchang Song, Zhentao Zhang, Junling Yang, Yunkai Yue

{"title":"A carbon dioxide energy storage system with high-temperature graded heat storage structure: Thermodynamic intrinsic cycle construction and performance analysis","authors":"Jiahao Hao, Pingyang Zheng, Yanchang Song, Zhentao Zhang, Junling Yang, Yunkai Yue","doi":"10.1007/s11708-025-0995-3","DOIUrl":"10.1007/s11708-025-0995-3","url":null,"abstract":"<div>Carbon dioxide energy storage (CES) is an emerging compressed gas energy storage technology which offers high energy storage efficiency, flexibility in location, and low overall costs. This study focuses on a CES system that incorporates a high-temperature graded heat storage structure, utilizing multiple heat exchange working fluids. Unlike traditional CES systems that utilize a single thermal storage at low to medium temperatures, this system significantly optimizes the heat transfer performance of the system, thereby improving its cycle efficiency. Under typical design conditions, the round-trip efficiency of the system is found to be 76.4%, with an output power of 334 kW/(kg·s−1) per unit mass flow rate, through mathematical modeling. Performance analysis shows that increasing the total pressure ratio, reducing the heat transfer temperature difference, improving the heat exchanger efficiency, and lowering the ambient temperature can enhance cycle efficiency. Additionally, this paper proposes a universal and theoretical CES thermodynamic intrinsic cycle construction method and performance prediction evaluation method for CES systems, providing a more standardized and accurate approach for optimizing CES system design.</div>","PeriodicalId":570,"journal":{"name":"Frontiers in Energy","volume":"19 2","pages":"240 - 255"},"PeriodicalIF":3.1,"publicationDate":"2025-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143925605","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

Intramolecular junction for methane photooxidation to ethanol 甲烷光氧化生成乙醇的分子内连接

IF 6.2 4区工程技术

Frontiers in Energy Pub Date : 2025-03-10 DOI: 10.1007/s11708-025-0993-5

Li Li, Yongfu Sun

引用次数: 0

Nanomaterials-based enzymatic biofuel cells for wearable and implantable bioelectronics 用于可穿戴和植入式生物电子学的纳米材料酶生物燃料电池

IF 6.2 4区工程技术

Frontiers in Energy Pub Date : 2025-03-10 DOI: 10.1007/s11708-025-0992-6

Jingyao Wang, Jiwei Ma, Hongfei Cheng

引用次数: 0

Dimethyl ether: A promising fuel for marine engines 二甲醚：一种很有前途的船用发动机燃料

IF 3.1 4区工程技术

Frontiers in Energy Pub Date : 2025-02-28 DOI: 10.1007/s11708-025-0986-4

Zhen Huang, Wugao Zhang, Dong Han, Lei Zhu, He Lin, Bin Guan

引用次数: 0

Advances in manganese-based cathode electrodes for aqueous zinc-ion batteries 锰基锌离子电池阴极电极的研究进展

IF 6.2 4区工程技术

Frontiers in Energy Pub Date : 2025-02-28 DOI: 10.1007/s11708-025-0983-7

Haixiang Luo, Hui-Juan Zhang, Yiming Tao, Wenli Yao, Yuhua Xue

{"title":"Advances in manganese-based cathode electrodes for aqueous zinc-ion batteries","authors":"Haixiang Luo, Hui-Juan Zhang, Yiming Tao, Wenli Yao, Yuhua Xue","doi":"10.1007/s11708-025-0983-7","DOIUrl":"10.1007/s11708-025-0983-7","url":null,"abstract":"<div>Aqueous zinc-ion batteries (AZIBs) are emerging as a promising option for next-generation energy storage due to their abundant resources, affordability, eco-friendliness, and high safety levels. Manganese-based cathode materials, in particular, have garnered significant attention because of their high theoretical capacity and cost-effectiveness. However, they still face substantial challenges related to rate performance and cycling stability. To address these issues, researchers have developed various strategies. This review focuses on the key advancements in manganese-based cathode materials for AZIBs in recent years. It begins with a detailed analysis of the energy storage mechanisms in manganese-based cathodes. Next, it introduces a variety of manganese-based oxides, highlighting their distinct crystal structures and morphologies. It also outlines optimization strategies, such as ion doping (both monovalent ions and multivalent ions), the preparation of Mn-based metal-organic frameworks (MOFs), carbon materials coatings, and electrolyte optimization. These strategies have significantly improved the electrochemical performance of manganese-based oxide cathodes. By systematically analyzing these advancements, it aims to provide guidance for the development of high-performance manganese-based cathodes. Finally, it discusses prospective research directions for manganese-based cathodes in AZIBs.</div>","PeriodicalId":570,"journal":{"name":"Frontiers in Energy","volume":"19 3","pages":"260 - 282"},"PeriodicalIF":6.2,"publicationDate":"2025-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145170740","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

In situ construction of Cs3Bi2I9/WO3 0D/1D Z-scheme heterojunction photocatalyst for photochemical CO2 reduction under visible light Cs3Bi2I9/ wo30d /1D Z-scheme异质结光催化剂在可见光下的原位构建

IF 6.2 4区工程技术

Frontiers in Energy Pub Date : 2025-02-28 DOI: 10.1007/s11708-025-0989-1

Yan Ding, Yihao Zhang, Fei Zhang, Pei Tian, Yiduo Wang, Shaohua Shen, Jinjia Wei, Jie Chen

{"title":"In situ construction of Cs3Bi2I9/WO3 0D/1D Z-scheme heterojunction photocatalyst for photochemical CO2 reduction under visible light","authors":"Yan Ding, Yihao Zhang, Fei Zhang, Pei Tian, Yiduo Wang, Shaohua Shen, Jinjia Wei, Jie Chen","doi":"10.1007/s11708-025-0989-1","DOIUrl":"10.1007/s11708-025-0989-1","url":null,"abstract":"<div>The photocatalytic efficiency of lead-free Bi-based halide perovskites, such as Cs3Bi2X9 (X = Br, I) for CO2 reduction is often hindered by self-aggregation and insufficient oxidation ability. In this work, a visible-light-driven (λ > 420 nm) Z-scheme heterojunction photocatalyst composed of 0D Cs3Bi2I9 nanoparticles on 1D WO3 nanorods for photocatalytic CO2 reduction and water oxidation is synthesized using an in situ growing approach. The resulting 0D/1D Cs3Bi2I9/WO3 Z-scheme heterojunction photocatalyst exhibits a visible-light-driven photocatalytic CO2 reduction performance for selective CO production, achieving a selectivity of 98.7% and a high rate of 16.5 (µmol/(g·h), approximately three times that of pristine Cs3Bi2I9. Furthermore, it demonstrates decent stability in the gas-solid photocatalytic CO2 reduction system. The improved performance of Cs3Bi2I9/WO3 is attributed to the formation of the 0D/1D Z-scheme heterojunction, which facilitates charge transfer, reduces charge recombination, and maintains the active sites of both 0D Cs3Bi2I9 for CO2 reduction and 1D WO3 for water oxidation. This work provides valuable insights into the potential of morphological engineering and the design of simultaneous Z-scheme heterojunction for lead-free halide perovskites.</div>","PeriodicalId":570,"journal":{"name":"Frontiers in Energy","volume":"19 4","pages":"534 - 544"},"PeriodicalIF":6.2,"publicationDate":"2025-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144926918","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

Recent trends in CO2 reduction through various catalytic methods to achieve carbon-neutral goals: A comprehensive bibliometric analysis 通过各种催化方法实现碳中和目标的二氧化碳减排的最新趋势：综合文献计量学分析

IF 6.2 4区工程技术

Frontiers in Energy Pub Date : 2025-02-28 DOI: 10.1007/s11708-025-0988-2

Xuxu Guo, Hangrang Zhang, Yang Su, Yingtang Zhou

{"title":"Recent trends in CO2 reduction through various catalytic methods to achieve carbon-neutral goals: A comprehensive bibliometric analysis","authors":"Xuxu Guo, Hangrang Zhang, Yang Su, Yingtang Zhou","doi":"10.1007/s11708-025-0988-2","DOIUrl":"10.1007/s11708-025-0988-2","url":null,"abstract":"<div>The extensive utilization of fossil fuels has led to a significant increase in carbon dioxide (CO2) emissions, contributing to global warming and environmental pollution, which pose major threats to human survival. To mitigate these effects, many researchers are actively employing state-of-the-art technologies to convert CO2 into valuable chemicals and fuels, thereby supporting sustainable development. However, few studies have employed bibliometric methods to systematically analyze research trends in CO2 reduction reaction (CO2RR), resulting in limited macroscopic insights into this field. This study aims to conduct a scientometric analysis of academic literature on electrocatalytic, photocatalytic, and thermocatalytic CO2RR from 2015 to 2023. Utilizing bibliometric analysis tools Citespace, Bibliometrix, and Vosviewer for data visualization, it establishes a knowledge framework for catalytic CO2RR. The results show that China, the United States, and India are the top three countries with the highest number of published papers in this field, with China and the United States having the highest levels of collaboration. The journal Applied Catalysis B-Environmental published the most articles and received the highest citation count, with 3.4% of the articles in this field appearing in the journal and a total of 62526 citations. Keyword analysis revealed that terms like “CO2RR,” “CO2,” “conversion,” and “reduction” are the most frequently occurring, indicating key areas of focus. Additionally, “selectivity” and “heterojunction” emerged as prominent research hotspots. The discussion section highlights the current challenges in the field and proposes potential strategies to address these obstacles, providing valuable insights for research in the field of catalytic CO2RR.</div>","PeriodicalId":570,"journal":{"name":"Frontiers in Energy","volume":"19 4","pages":"500 - 520"},"PeriodicalIF":6.2,"publicationDate":"2025-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144926920","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

Highlights of key advances in China’s wind turbines technology in 2024 2024 年中国风力涡轮机技术主要进展亮点

IF 3.1 4区工程技术

Frontiers in Energy Pub Date : 2025-02-20 DOI: 10.1007/s11708-025-0987-3

Haiyan Qin, Hongyuan Yang, Haoran Li, Guangping Du

引用次数: 0

Performance analysis of a novel unassisted photoelectrochemical water splitting hybrid system based on spectral beam splitting 基于光谱光束分裂的新型无辅助光电化学水分解混合系统的性能分析

IF 6.2 4区工程技术

Frontiers in Energy Pub Date : 2025-02-15 DOI: 10.1007/s11708-025-0984-6

Baoyuan Wang, Suyi Yang, Tuo Zhang, Yukai Liu, Sheng Yang, Luning Li, Weiding Wang, Jinzhan Su

{"title":"Performance analysis of a novel unassisted photoelectrochemical water splitting hybrid system based on spectral beam splitting","authors":"Baoyuan Wang, Suyi Yang, Tuo Zhang, Yukai Liu, Sheng Yang, Luning Li, Weiding Wang, Jinzhan Su","doi":"10.1007/s11708-025-0984-6","DOIUrl":"10.1007/s11708-025-0984-6","url":null,"abstract":"<div>Photoelectrochemical (PEC) water splitting, particularly self-biased PEC systems, holds great promise for solar energy utilization. However, the limited transparency of most photoelectrodes presents challenges in fabricating tandem photoelectrodes with photovoltaic (PV) cells for self-biased water splitting. Herein, a novel self-biased hybrid system integrating photoelectrodes (TiO2, BiVO4), beam splitters (BSs), and PV cell was proposed to enhance solar energy utilization and PEC water splitting performance. The results indicate that the integration of BSs significantly improves the current densities of both self-biased PV-PEC systems and single PEC systems. The current density of self-biased water splitting system with BSs exceeds that of the conventional TiO2 + BVO-PV system, and the intersection point of the I–V curves for the photoanodes and solar cell is closer to the maximum power output of the solar cell. The effective utilization of the solar spectrum by both the photoelectrode and the PV cell in the hybrid system with BSs significantly increases the power output by a factor of 18.8 compared to the conventional tandem self-biased system. The predicted results indicate that the hydrogen production rate of the system with BSs is 12.1 µmol/(h·cm2), while the STH efficiency is enhanced by a factor of 12.38 and 19.87 compared to conventional TiO2 + BVO-PV and TiO2/BVO-PV tandem PV-PEC systems, respectively, demonstrating the advantage of the water splitting system with spectral BSs. In conclusion, this work provides an innovative approach of achieving self-biased water splitting by coupling spectral BSs with a PV-PEC system, resulting in improved solar energy harvesting efficiency.</div>","PeriodicalId":570,"journal":{"name":"Frontiers in Energy","volume":"19 3","pages":"312 - 325"},"PeriodicalIF":6.2,"publicationDate":"2025-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145165644","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