Frontiers in Energy最新文献

Performance analysis of a novel medium temperature compressed air energy storage system based on inverter-driven compressor pressure regulation 基于变频器驱动压缩机压力调节的新型中温压缩空气储能系统性能分析

IF 2.9 4区工程技术

Frontiers in Energy Pub Date : 2024-10-01 DOI: 10.1007/s11708-024-0921-0

Yanghai Li, Wanbing Xu, Ming Zhang, Chunlin Zhang, Tao Yang, Hongyu Ding, Lei Zhang

引用次数: 0

Impact of bimetallic synergies on Mo-doping NiFeOOH: Insights into enhanced OER activity and reconstructed electronic structure 双金属协同作用对掺杂钼的 NiFeOOH 的影响：对增强 OER 活性和重建电子结构的启示

IF 2.9 4区工程技术

Frontiers in Energy Pub Date : 2024-09-01 DOI: 10.1007/s11708-024-0960-6

Jingkuo Qu, Yuchen Dong, Tuo Zhang, Chang Zhao, Liting Wei, Xiangjiu Guan

{"title":"Impact of bimetallic synergies on Mo-doping NiFeOOH: Insights into enhanced OER activity and reconstructed electronic structure","authors":"Jingkuo Qu, Yuchen Dong, Tuo Zhang, Chang Zhao, Liting Wei, Xiangjiu Guan","doi":"10.1007/s11708-024-0960-6","DOIUrl":"https://doi.org/10.1007/s11708-024-0960-6","url":null,"abstract":"NiFe (oxy)hydroxide (NiFeOOH) is recognized as a highly active non-precious metal catalyst in alkaline water electrolysis due to its exceptional catalytic properties. In this work, high valence molybdenum (Mo) is introduced to improve the electronic structure and enhance the electrical conductivity of NiFeOOH for oxygen evolution reaction (OER). The introduction of Mo results in a Mo-doped NiFeOOH catalyst with a significantly reduced overpotential of 205 mV at 10 mA/cm2 and a Tafel slope of 31.7 mV/dec, enabling stable operation for up to 170 h. Both empirical experiment and theory simulations are employed to gain insight into the 3d-electron interactions between molybdenum and nickel (Ni), iron (Fe) in Mo-doped NiFeOOH. The results indicate that Mo-doping enhances the valence states of Ni and Fe, leading to a shift in the d-band center of the bimetallic active sites. This modification affects the transformation of Mo-doped NiFeOOH into the γ-NiFeOOH active phase. This potent combination lends credence to its potential suitability and utility in OER applications.","PeriodicalId":570,"journal":{"name":"Frontiers in Energy","volume":"9 1","pages":""},"PeriodicalIF":2.9,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142175142","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-enhanced direct ammonia protonic ceramic fuel cells using CeO2-supported Ni and Ru catalyst layer 使用 CeO2-supported Ni 和 Ru 催化剂层的性能增强型直接氨质子陶瓷燃料电池

IF 2.9 4区工程技术

Frontiers in Energy Pub Date : 2024-08-20 DOI: 10.1007/s11708-024-0959-z

Xiaoxiao Li, Jiangping Chen, Yunyun Huang, Huihuang Fang, Chongqi Chen, Fulan Zhong, Li Lin, Yu Luo, Yuqing Wang, Lilong Jiang

{"title":"Performance-enhanced direct ammonia protonic ceramic fuel cells using CeO2-supported Ni and Ru catalyst layer","authors":"Xiaoxiao Li, Jiangping Chen, Yunyun Huang, Huihuang Fang, Chongqi Chen, Fulan Zhong, Li Lin, Yu Luo, Yuqing Wang, Lilong Jiang","doi":"10.1007/s11708-024-0959-z","DOIUrl":"https://doi.org/10.1007/s11708-024-0959-z","url":null,"abstract":"Ammonia is an exceptional fuel for solid oxide fuel cells (SOFCs), because of the high content of hydrogen and the advantages of carbon neutrality. However, the challenge lies in its unsatisfactory performance at intermediate temperatures (500–600 °C), impeding its advancement. An electrolyte-supported proton-ceramic fuel cell (PCFC) was fabricated employing BaZr0.1Ce0.7Y0.2O3−δ (BZCY) as the electrolyte and Ba0.5Sr0.5Co0.8Fe0.2O3−δ (BSCF) as the cathode. In this study, the performance of PCFC using NH3 as fuel within an operating temperature range of 500–700 °C was improved by adding an M(Ni,Ru)/CeO2 catalyst layer to reconstruct the anode surface. The electrochemical performance of direct ammonia PCFC (DA-PCFC) were improved to different extents. Compared to H2 as fuel, the degradation ratio of peak power densities (PPDs) of Ni/CeO2-loaded PCFC fueled with NH3 decreased at 700–500 °C, with a decrease to 13.3% at 700 °C and 30.7% at 500 °C. The findings indicate that Ru-based catalysts have a greater promise for direct ammonia SOFCs (DA-SOFCs) at operating temperatures below 600 °C. However, the enhancement effect becomes less significant above 600 °C when compared to Ni-based catalysts.","PeriodicalId":570,"journal":{"name":"Frontiers in Energy","volume":"37 1","pages":""},"PeriodicalIF":2.9,"publicationDate":"2024-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142175165","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

Low-carbon collaborative dual-layer optimization for energy station considering joint electricity and heat demand response 考虑电力和热力联合需求响应的能源站低碳协同双层优化方案

IF 2.9 4区工程技术

Frontiers in Energy Pub Date : 2024-08-15 DOI: 10.1007/s11708-024-0958-0

Shaoshan Xu, Xingchen Wu, Jun Shen, Haochen Hua

{"title":"Low-carbon collaborative dual-layer optimization for energy station considering joint electricity and heat demand response","authors":"Shaoshan Xu, Xingchen Wu, Jun Shen, Haochen Hua","doi":"10.1007/s11708-024-0958-0","DOIUrl":"https://doi.org/10.1007/s11708-024-0958-0","url":null,"abstract":"In the park-level integrated energy system (PIES) trading market involving various heterogeneous energy sources, the traditional vertically integrated market trading structure struggles to reveal the interactions and collaborative relationships between energy stations and users, posing challenges to the economic and low-carbon operation of the system. To address this issue, a dual-layer optimization strategy for energy station-user, taking into account the demand response for electricity and thermal, is proposed in this paper. The upper layer, represented by energy stations, makes decisions on variables such as the electricity and heat prices sold to users, as well as the output plans of energy supply equipment and the operational status of battery energy storage. The lower layer, comprising users, determines their own electricity and heat demand through demand response. Subsequently, a combination of differential evolution and quadratic programming (DE-QP) is employed to solve the interactive strategies between energy stations and users. The simulation results indicate that, compared to the traditional vertically integrated structure, the strategy proposed in this paper increases the revenue of energy stations and the consumer surplus of users by 5.09% and 2.46%, respectively.","PeriodicalId":570,"journal":{"name":"Frontiers in Energy","volume":"59 1","pages":""},"PeriodicalIF":2.9,"publicationDate":"2024-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142175143","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

Oxygen reduction reaction performance of Fe-N-C catalyst with dual nitrogen source 双氮源 Fe-N-C 催化剂的氧还原反应性能

IF 2.9 4区工程技术

Frontiers in Energy Pub Date : 2024-08-10 DOI: 10.1007/s11708-024-0956-2

Yuan Zhao, Quan Wang, Rongrong Hu, Wenqiang Liu, Xiaojuan Zhang, Wei Wang, Nicolas Alonso-Vante, Dongdong Zhu

{"title":"Oxygen reduction reaction performance of Fe-N-C catalyst with dual nitrogen source","authors":"Yuan Zhao, Quan Wang, Rongrong Hu, Wenqiang Liu, Xiaojuan Zhang, Wei Wang, Nicolas Alonso-Vante, Dongdong Zhu","doi":"10.1007/s11708-024-0956-2","DOIUrl":"https://doi.org/10.1007/s11708-024-0956-2","url":null,"abstract":"Fe-N-C catalysts are potential substitutes to displace electrocatalysts containing noble chemical elements in the oxygen reduction reaction (ORR). However, their application is hampered by unsatisfactory activity and stability issues. The structures and morphologies of Fe-N-C catalysts have been found to be crucial for the number of active sites and local bonding structures. In this work, dicyandiamide (DCDA) and polyaniline (PANI) are shown to act as dual nitrogen sources to tune the morphology and structure of the catalyst and facilitate the ORR process. The dual nitrogen sources not only increase the amount of nitrogen doping atoms in the electrocatalytic Fe-C-N material, but also maintain a high nitrogen-pyrrole/nitrogen-graphitic: (N-P)/(N-G) value, improving the distribution density of catalytic active sites in the material. With a high surface area and amount of N-doping, the Fe-N-C catalyst developed can achieve an improved half-wave potential of 0.886 V (vs. RHE) in alkaline medium, and a better stability and methanol resistance than commercial Pt/C catalyst.","PeriodicalId":570,"journal":{"name":"Frontiers in Energy","volume":"11 1","pages":""},"PeriodicalIF":2.9,"publicationDate":"2024-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142175164","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

Economically attractive production of commercial-grade gasoline from waste plastics 利用废塑料生产商业级汽油，经济效益显著

IF 3.1 4区工程技术

Frontiers in Energy Pub Date : 2024-07-20 DOI: 10.1007/s11708-024-0954-4

Muhammad Salman Nasir, Hu Pan, Baowen Zhou

引用次数: 0

Visualizing unleashed latent heat of liquid metal for soft intelligence 可视化液态金属释放的潜热，实现软智能

IF 3.1 4区工程技术

Frontiers in Energy Pub Date : 2024-07-15 DOI: 10.1007/s11708-024-0951-7

Jianbo Tang, Bo Yuan, Hongzhang Wang, Jing Liu

引用次数: 0

Improved cyclic stability of LiNi0.8Mn0.1Co0.1O2 cathode enabled by a novel CEI forming additive 新型 CEI 形成添加剂提高了 LiNi0.8Mn0.1Co0.1O2 阴极的循环稳定性

IF 3.1 4区工程技术

Frontiers in Energy Pub Date : 2024-07-10 DOI: 10.1007/s11708-024-0953-5

Zulipiya Shadike, Yiming Chen, Lin Liu, Xinyin Cai, Shuiyun Shen, Junliang Zhang

{"title":"Improved cyclic stability of LiNi0.8Mn0.1Co0.1O2 cathode enabled by a novel CEI forming additive","authors":"Zulipiya Shadike, Yiming Chen, Lin Liu, Xinyin Cai, Shuiyun Shen, Junliang Zhang","doi":"10.1007/s11708-024-0953-5","DOIUrl":"10.1007/s11708-024-0953-5","url":null,"abstract":"<div>The undesired side reactions at electrode/electrolyte interface as well as the irreversible phase evolution during electrochemical cycling significantly affect the cyclic performances of nickel-rich NMCs electrode materials. Electrolyte optimization is an effective approach to suppress such an adverse side reaction, thereby enhancing the electrochemical properties. Herein, a novel boron-based film forming additive, tris(2,2,2-trifluoroethyl) borate (TTFEB), has been introduced to regulate the interphasial chemistry of LiNi0.8Mn0.1Co0.1O2 (NMC811) cathode to improve its long-term cyclability and rate properties. The results of multi-model diagnostic study reveal that formation lithium fluoride (LiF)-rich and boron (B) containing cathode electrolyte interphase (CEI) not only stabilizes cathode surface, but also prevents electrolyte decomposition. Moreover, homogenously distributed B containing species serves as a skeleton to form more uniform and denser CEI, reducing the interphasial resistance. Remarkably, the Li/NMC811 cell with the TTFEB additive delivers an exceptional cycling stability with a high-capacity retention of 72.8% after 350 electrochemical cycles at a 1 C current rate, which is significantly higher than that of the cell cycled in the conventional electrolyte (59.7%). These findings provide a feasible pathway for improving the electrochemical performance of Ni-rich NMCs cathode by regulating the interphasial chemistry.</div>","PeriodicalId":570,"journal":{"name":"Frontiers in Energy","volume":"18 4","pages":"535 - 544"},"PeriodicalIF":3.1,"publicationDate":"2024-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141745961","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 review on plasmonic enhancement of activity and selectivity in electrocatalytic CO2 reduction 电催化二氧化碳还原中的等离子体活性和选择性增强综述

IF 3.1 4区工程技术

Frontiers in Energy Pub Date : 2024-07-10 DOI: 10.1007/s11708-024-0950-8

Jing Xue, Zhenlin Chen, Yuchao Zhang, Jincai Zhao

引用次数: 0

Impact of Ni particle size on CO2 activation and CO formation during reforming process: A density functional theory study 镍粒度对重整过程中二氧化碳活化和一氧化碳形成的影响：密度泛函理论研究

IF 3.1 4区工程技术

Frontiers in Energy Pub Date : 2024-06-30 DOI: 10.1007/s11708-024-0952-6

Juntian Niu, Shengzhuo Chen, Xianrong Zheng, Haiyu Liu, Yan Jin, Jingyu Ran

{"title":"Impact of Ni particle size on CO2 activation and CO formation during reforming process: A density functional theory study","authors":"Juntian Niu, Shengzhuo Chen, Xianrong Zheng, Haiyu Liu, Yan Jin, Jingyu Ran","doi":"10.1007/s11708-024-0952-6","DOIUrl":"10.1007/s11708-024-0952-6","url":null,"abstract":"<div>In recent years, the dry reforming of methane (DRM) reaction has gained widespread attention due to its effective utilization of two major greenhouse gases. Supported Ni-based catalysts for DRM exhibit a strong dependence on particle size, however, the reaction mechanisms involved remain unclear. In this work, the effect of metal particle size on CO2 activation and CO formation was explored in the DRM reaction using the density functional theory. Nix/MgO (x = 13, 25, 37) was constructed to investigate the CO2 activation and the formation of CO during the DRM reaction. It is found that CO2 is more inclined to undergo chemisorption on Nix/MgO before activation. With the variation in particle size, the main activation pathway of CO2 on the catalyst changes. On the smallest Ni13/MgO, CO2 tends to directly dissociate, while on the larger Ni25/MgO and Ni37/MgO, the hydrogenation dissociation of CO2 is more kinetically favorable. Compared to Ni13/MgO and Ni37/MgO, the oxidation of surface C atoms and the oxidation of CH occur more readily on Ni25/MgO. This indicates that C atoms are less likely to form on Ni25 particle and are more easily to be oxidized. To some extent, the results suggest that Ni25/MgO exhibits superior resistance to carbon formation.</div>","PeriodicalId":570,"journal":{"name":"Frontiers in Energy","volume":"18 4","pages":"525 - 534"},"PeriodicalIF":3.1,"publicationDate":"2024-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141586159","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