Frontiers in Energy最新文献_第3页

Special issue on electrochemical energy storage and conversion 电化学储能与转换特刊

IF 3.1 4区工程技术

Frontiers in Energy Pub Date : 2024-04-10 DOI: 10.1007/s11708-024-0942-8

Yun Zheng, Gaixia Zhang, Sixu Deng, Jiujun Zhang

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Catalytic hydrodeoxygenation of pyrolysis bio-oil to jet fuel: A review 热解生物油催化加氢脱氧生成喷气燃料：综述

IF 3.1 4区工程技术

Frontiers in Energy Pub Date : 2024-04-01 DOI: 10.1007/s11708-024-0943-7

Zhongyang Luo, Wanchen Zhu, Feiting Miao, Jinsong Zhou

{"title":"Catalytic hydrodeoxygenation of pyrolysis bio-oil to jet fuel: A review","authors":"Zhongyang Luo, Wanchen Zhu, Feiting Miao, Jinsong Zhou","doi":"10.1007/s11708-024-0943-7","DOIUrl":"10.1007/s11708-024-0943-7","url":null,"abstract":"<div><p>Bio-oil from biomass pyrolysis cannot directly substitute traditional fuel due to compositional deficiencies. Catalytic hydrodeoxygenation (HDO) is the critical and efficient step to upgrade crude bio-oil to high-quality bio-jet fuel by lowering the oxygen content and increasing the heating value. However, the hydrocracking reaction tends to reduce the liquid yield and increase the gas yield, causing carbon loss and producing hydrocarbons with a short carbon-chain. To obtain high-yield bio-jet fuel, the elucidation of the conversion process of biomass catalytic HDO is important in providing guidance for metal catalyst design and optimization of reaction conditions. Considering the complexity of crude bio-oil, this review aimed to investigate the catalytic HDO pathways with model compounds that present typical bio-oil components. First, it provided a comprehensive summary of the impact of physical and electronic structures of both noble and non-noble metals that include monometallic and bimetallic supported catalysts on regulating the conversion pathways and resulting product selectivity. The subsequent first principle calculations further corroborated reaction pathways of model compounds in atom-level on different catalyst surfaces with the experiments above and illustrated the favored C–O/C=O scission orders thermodynamically and kinetically. Then, it discussed hydrogenation effects of different H-donors (such as hydrogen and methane) and catalysts deactivation for economical and industrial consideration. Based on the descriptions above and recent researches, it also elaborated on catalytic HDO of biomass and bio-oil with multi-functional catalysts. Finally, it presented the challenges and future prospective of biomass catalytic HDO.</p></div>","PeriodicalId":570,"journal":{"name":"Frontiers in Energy","volume":"18 5","pages":"550 - 582"},"PeriodicalIF":3.1,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140936183","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}

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Experimental study on current distribution in parallel-connected solid oxide fuel cell strings 并联固体氧化物燃料电池串电流分布实验研究

IF 3.1 4区工程技术

Frontiers in Energy Pub Date : 2024-04-01 DOI: 10.1007/s11708-024-0941-9

Jia Lu, Qiang Hu, Jian Wu

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Syngas production by photoreforming of formic acid with 2D VxW1−xN1.5 solid solution as an efficient cocatalyst 以二维 VxW1-xN1.5 固溶体为高效协同催化剂，通过甲酸光转化生产合成气

IF 3.1 4区工程技术

Frontiers in Energy Pub Date : 2024-03-30 DOI: 10.1007/s11708-024-0940-x

Xiaoyuan Ye, Yuchen Dong, Ziying Zhang, Wengao Zeng, Bin Zhu, Tuo Zhang, Ze Gao, Anna Dai, Xiangjiu Guan

{"title":"Syngas production by photoreforming of formic acid with 2D VxW1−xN1.5 solid solution as an efficient cocatalyst","authors":"Xiaoyuan Ye, Yuchen Dong, Ziying Zhang, Wengao Zeng, Bin Zhu, Tuo Zhang, Ze Gao, Anna Dai, Xiangjiu Guan","doi":"10.1007/s11708-024-0940-x","DOIUrl":"10.1007/s11708-024-0940-x","url":null,"abstract":"<div><p>Formic acid (FA) is a potential biomass resource of syngas with contents of carbon monoxide (CO, 60 wt.%) and hydrogen (H<sub>2</sub>, 4.4 wt.%). Among the technologies for FA conversion, the photoreforming of FA has received widespread attention due to its use of green solar energy conversion technology and mild reaction conditions. Herein, a V–W bimetallic solid solution, V<sub><i>x</i></sub>W<sub>1−<i>x</i></sub>N<sub>1.5</sub> with efficient co-catalytic properties was first and facilely synthesized. When CdS was used as a photocatalyst, the activity performance of the V<sub>0.1</sub>W<sub>0.9</sub>N<sub>1.5</sub> system was over 60% higher than that of the W<sub>2</sub>N<sub>3</sub> system. The computational simulations and experiments showed the V<sub>0.1</sub>W<sub>0.9</sub>N<sub>1.5</sub> had great metallic features and large work functions, contributing a faster photo-generated carrier transfer and less recombination, finally facilitating a great performance in cocatalyst for syngas production in photoreforming FA. This work provides an approach to synthesizing novel transition metal nitrides for photocatalysis.</p></div>","PeriodicalId":570,"journal":{"name":"Frontiers in Energy","volume":"18 5","pages":"640 - 649"},"PeriodicalIF":3.1,"publicationDate":"2024-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140581119","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}

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Advancements on metal oxide semiconductor photocatalysts in photo-electrochemical conversion of carbon dioxide into fuels and other useful products 金属氧化物半导体光催化剂在光电化学将二氧化碳转化为燃料和其他有用产品方面的进展

IF 3.1 4区工程技术

Frontiers in Energy Pub Date : 2024-03-20 DOI: 10.1007/s11708-024-0939-3

Jai Prakash, Zhangsen Chen, Shakshi Saini, Gaixia Zhang, Shuhui Sun

{"title":"Advancements on metal oxide semiconductor photocatalysts in photo-electrochemical conversion of carbon dioxide into fuels and other useful products","authors":"Jai Prakash, Zhangsen Chen, Shakshi Saini, Gaixia Zhang, Shuhui Sun","doi":"10.1007/s11708-024-0939-3","DOIUrl":"10.1007/s11708-024-0939-3","url":null,"abstract":"<div><p>Due to its fascinating and tunable optoelectronic properties, semiconductor nanomaterials are the best choices for multidisciplinary applications. Particularly, the use of semiconductor photocatalysts is one of the promising ways to harness solar energy for useful applications in the field of energy and environment. In recent years, metal oxide-based tailored semiconductor photocatalysts have extensively been used for photocatalytic conversion of carbon dioxide (CO<sub>2</sub>) into fuels and other useful products utilizing solar energy. This is very significant not only from renewable energy consumption but also from reducing global warming point of view. Such current research activities are promising for a better future of society. The present mini-review is focused on recent developments (2–3 years) in metal oxide semiconductor hybrid photocatalysts-based photo-electrochemical conversion of CO<sub>2</sub> into fuels and other useful products. First, general mechanism of photo-electrochemical conversion of CO<sub>2</sub> into fuels or other useful products has been discussed. Then, various metal oxide-based emerging hybrid photocatalysts including tailoring of their morphological, compositional, and optoelectronic properties have been discussed with emphasis on their role in enhancing photo-electrochemical efficienty. Afterwards, mechanism of their photo-electrochemical reactions and applications in CO<sub>2</sub> conversion into fuels/other useful products have been discussed. Finally, challenges and future prospects have been discussed followed by a summary.</p></div>","PeriodicalId":570,"journal":{"name":"Frontiers in Energy","volume":"18 2","pages":"187 - 205"},"PeriodicalIF":3.1,"publicationDate":"2024-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140581325","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}

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Review on thermal-science fundamental research of pressurized oxy-fuel combustion technology 加压全氧燃烧技术的热科学基础研究综述

IF 3.1 4区工程技术

Frontiers in Energy Pub Date : 2024-03-10 DOI: 10.1007/s11708-024-0931-y

Xinran Wang, Shiquan Shan, Zhihua Wang, Zhijun Zhou, Kefa Cen

{"title":"Review on thermal-science fundamental research of pressurized oxy-fuel combustion technology","authors":"Xinran Wang, Shiquan Shan, Zhihua Wang, Zhijun Zhou, Kefa Cen","doi":"10.1007/s11708-024-0931-y","DOIUrl":"10.1007/s11708-024-0931-y","url":null,"abstract":"<div><p>As the next-generation oxy-fuel combustion technology for controlling CO<sub>2</sub> emissions, pressurized oxy-fuel combustion (POC) technology can further reduce system energy consumption and improve system efficiency compared with atmospheric oxy-fuel combustion. The oxy-fuel combustion causes high CO<sub>2</sub> concentration, which has a series of effects on the combustion reaction process, making the radiation and reaction characteristics different from air-fuel conditions. Under the pressurized oxy-fuel condition, the combustion reaction characteristics are affected by the coupling effect of pressure and atmosphere. The radiation and heat transfer characteristics of the combustion medium are also affected by pressure. In recent years, there have been many studies on POC. This review pays attention to the thermal-science fundamental research. It summarizes several typical POC systems in the world from the perspective of system thermodynamic construction. Moreover, it reviews, in detail, the current research results of POC in terms of heat transfer characteristics (radiant heat transfer and convective heat transfer), combustion characteristics, and pollutant emissions, among which the radiation heat transfer and thermal radiation model are the focus of this paper. Furthermore, it discusses the development and research direction of POC technology. It aims to provide references for scientific research and industrial application of POC technology.</p></div>","PeriodicalId":570,"journal":{"name":"Frontiers in Energy","volume":"18 6","pages":"760 - 784"},"PeriodicalIF":3.1,"publicationDate":"2024-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140581117","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

Application of multi-objective optimization based on Sobol sensitivity analysis in solar single-double-effect LiBr–H2O absorption refrigeration 基于 Sobol 敏感性分析的多目标优化在太阳能单双效 LiBr-H2O 吸收式制冷中的应用

IF 2.9 4区工程技术

Frontiers in Energy Pub Date : 2024-03-10 DOI: 10.1007/s11708-024-0938-4

Shiqi Zhao, Qingyang Li, Yongchao Sun, Dechang Wang, Qinglu Song, Sai Zhou, Jinping Li, Yanhui Li

{"title":"Application of multi-objective optimization based on Sobol sensitivity analysis in solar single-double-effect LiBr–H2O absorption refrigeration","authors":"Shiqi Zhao, Qingyang Li, Yongchao Sun, Dechang Wang, Qinglu Song, Sai Zhou, Jinping Li, Yanhui Li","doi":"10.1007/s11708-024-0938-4","DOIUrl":"https://doi.org/10.1007/s11708-024-0938-4","url":null,"abstract":"<p>To improve the adaptability of solar refrigeration systems to different heat sources, a single-double-effect LiBr–H<sub>2</sub>O absorption refrigeration system (ARS) driven by solar energy was designed and analyzed. The system was optimized using a multi-objective optimization method based on Sobol sensitivity analysis to enhance solar energy efficiency and reduce costs. The model of the solar single-double-effect LiBr–H<sub>2</sub>O ARS was developed, and the continuous operation characteristics of the system in different configurations were simulated and compared. The results show that the average cooling time of the system without auxiliary heat source is approximately 8.5 h per day, and the double-effect mode (DEM) generates about 11 kW of cooling capacity during continuous operation for one week under the designated conditions, and the system with adding auxiliary heat source meet the requirements of daily cooling time, the solar fraction (SF) of the system reaches 59.29%. The collector area has a greater effect on SF, while the flowrate of the hot water circulating pump and the volume of storage tank have little effect on SF. The optimized SF increases by 3.22% and the levelized cost decreases by 10.18%. Moreover, compared with the solar single-effect LiBr–H<sub>2</sub>O ARS, the SF of the system is increased by 15.51% and 17.42% respectively after optimization.</p>","PeriodicalId":570,"journal":{"name":"Frontiers in Energy","volume":"98 1","pages":""},"PeriodicalIF":2.9,"publicationDate":"2024-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140148128","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}

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Two-dimensional bimetallic selenium-containing metal-organic frameworks and their calcinated derivatives as electrocatalysts for overall water splitting 作为整体水分离电催化剂的二维双金属含硒金属有机框架及其煅烧衍生物

IF 3.1 4区工程技术

Frontiers in Energy Pub Date : 2024-03-10 DOI: 10.1007/s11708-024-0924-x

Zhao-ting Shang, Tang-ming Li, Bing-qian Hu, Min Liu, Wang-ting Lu, Fan Yu, Yun Zheng

{"title":"Two-dimensional bimetallic selenium-containing metal-organic frameworks and their calcinated derivatives as electrocatalysts for overall water splitting","authors":"Zhao-ting Shang, Tang-ming Li, Bing-qian Hu, Min Liu, Wang-ting Lu, Fan Yu, Yun Zheng","doi":"10.1007/s11708-024-0924-x","DOIUrl":"10.1007/s11708-024-0924-x","url":null,"abstract":"<div><p>The use of two-dimensional (2D) layered metal-organic frameworks (MOFs) as self-sacrificial templates has been proven to be a successful method to create high-efficiency Selenium (Se)-containing electrocatalysts for overall water splitting. Herein, two strategies are then utilized to introduce Se element into the Co–Fe MOF, one being the etching of as-prepared MOF by SeO<sub>2</sub> solution, and the other, the replacing of SCN<sup>−</sup> with SeCN<sup>−</sup> as the construction unit. The electrochemical activity of the pristine 2D MOF and their calcinated derivatives for catalyzing the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) is evaluated and further discussed. It is found that the effect of introducing Se on improving electrochemical catalytic activity is significant for the HER process. Specifically, the calcinated derivative in the replacing method exhibits an overpotential of 235 mV for HER and 270 mV for OER at a current density of 10 mA/cm<sup>2</sup>. For comparing the two methods of introducing Se element into MOF, similar electrocatalytic activity can be achieved on the their calcinated derivatives. The high electrochemical performance of 2D CoFe-MOF derivatives may be resulted from the unique 2D hierarchical porous structure and strong synergistic effect between different components in the material.</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":570,"journal":{"name":"Frontiers in Energy","volume":"18 3","pages":"378 - 389"},"PeriodicalIF":3.1,"publicationDate":"2024-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140020006","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}

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Recent progress in Prussian blue electrode for electrochromic devices 用于电致变色装置的普鲁士蓝电极的最新进展

IF 3.1 4区工程技术

Frontiers in Energy Pub Date : 2024-03-10 DOI: 10.1007/s11708-024-0927-7

Yongting Zhang, Wanzhong Li, Hui Gong, Qianqian Zhang, Liang Yan, Hao Wang

{"title":"Recent progress in Prussian blue electrode for electrochromic devices","authors":"Yongting Zhang, Wanzhong Li, Hui Gong, Qianqian Zhang, Liang Yan, Hao Wang","doi":"10.1007/s11708-024-0927-7","DOIUrl":"10.1007/s11708-024-0927-7","url":null,"abstract":"<div><p>Great progress has been made in the electrochromic (EC) technology with potential applications in various fields. As one of the most promising EC materials, Prussian blue (PB) has attracted great attention due to its excellent EC performance, such as low cost, easy synthesis, rich color states, chemical stability, suitable redox potential, and fast color-switching kinetics. This review summarizes the recent progress in PB electrodes and devices, including several typical preparation techniques of PB electrodes, as well as the recent key strategies for enhancing EC performance of PB electrodes. Specifically, PB-based electrochromic devices (ECDs) have been widely used in various fields, such as smart windows, electrochromic energy storage devices (EESDs), wearable electronics, smart displays, military camouflage, and other fields. Several opportunities and obstacles are suggested for advancing the development of PB-based ECDs. This comprehensive review is expected to offer valuable insights for the design and fabrication of sophisticated PB-based ECDs, enabling their practical integration into real-world applications.</p></div>","PeriodicalId":570,"journal":{"name":"Frontiers in Energy","volume":"18 2","pages":"160 - 186"},"PeriodicalIF":3.1,"publicationDate":"2024-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140009900","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

Advancing performance assessment of a spectral beam splitting hybrid PV/T system with water-based SiO2 nanofluid 推进采用水基二氧化硅纳米流体的光谱分束混合光伏/发电系统的性能评估

IF 3.1 4区工程技术

Frontiers in Energy Pub Date : 2024-03-10 DOI: 10.1007/s11708-024-0935-7

Bin Yang, Yuan Zhi, Yao Qi, Lingkang Xie, Xiaohui Yu

{"title":"Advancing performance assessment of a spectral beam splitting hybrid PV/T system with water-based SiO2 nanofluid","authors":"Bin Yang, Yuan Zhi, Yao Qi, Lingkang Xie, Xiaohui Yu","doi":"10.1007/s11708-024-0935-7","DOIUrl":"10.1007/s11708-024-0935-7","url":null,"abstract":"<div><p>Spectral beam split is attracting more attention thanks to the efficient use of whole spectrum solar energy and the cogenerative supply for electricity and heat. Nanofluids can selectively absorb and deliver specific solar spectra, making various nanofluids ideal for potential use in hybrid photovoltaic/thermal (PV/T) systems for solar spectrum separation. Clarifying the effects of design parameters is extremely beneficial for optimal frequency divider design and system performance enhancement. The water-based SiO<sub>2</sub> nanofluid with excellent thermal and absorption properties was proposed as the spectral beam splitter in the present study, to improve the efficiency of a hybrid PV/T system. Moreover, a dual optical path method was applied to get its spectral transimissivity and analyze the impact of its concentration and optical path on its optical properties. Furthermore, a PV and photothermal model of the presented system was built to investigate the system performance. The result indicates that the transimissivity of the nanofluids to solar radiation gradually decreases with increasing SiO<sub>2</sub> nanofluid concentration and optical path. The higher nanofluid concentration leads to a lower electrical conversion efficiency, a higher thermal conversion efficiency, and an overall system efficiency. Considering the overall efficiency and economic cost, the optimal SiO<sub>2</sub> nanofluid concentration is 0.10 wt.% (wt.%, mass fraction). Increasing the optical path (from 0 to 30 mm) results in a 60.43% reduction in electrical conversion efficiency and a 50.84% increase in overall system efficiency. However, the overall system efficiency rises sharply as the optical path increases in the 0–10 mm range, and then slowly at the optical path of 10–30 mm. Additionally, the overall system efficiency increases first and then drops upon increasing the focusing ratio. The maximum efficiency is 51.93% at the focusing ratio of 3.</p></div>","PeriodicalId":570,"journal":{"name":"Frontiers in Energy","volume":"18 6","pages":"799 - 815"},"PeriodicalIF":3.1,"publicationDate":"2024-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140581008","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