检索结果-内蒙古大学图书馆

Boosting electrochemical reduction of CO_(2)to CO using molecule-regulated Ag nanoparticle in ionic liquids

Green energy & Environment 2025年第4期10卷 813-820页

作者： Fangfang Li Kuilin Peng Chongyang Jiang Shaojuan Zeng Xiangping Zhang Xiaoyan Ji Energy Engineering Division of Energy ScienceLuleåUniversity of TechnologyLuleå97187Sweden Beijing Key Laboratory of Ionic Liquids Clean Process State Key Laboratory of Multiphase Complex SystemsInstitute of Process EngineeringChinese Academy of SciencesBeijing100190China College of Chemical Engineering and Environment China University of PetroleumBeijing102249China

Electrochemical reduction of CO_(2)is a promising approach to convert CO_(2)to high-valued chemicals and ***,developing efficient electrocatalysts featuring desirable activity and selectivity is still a big *** this work,a strategy of introducing functionalized molecules with desirable CO_(2)affinity to regulate Ag catalyst for promoting electrochemical reduction of CO_(2)was ***,3-mercapto-1,2,4-triazole was introduced onto the Ag nanoparticle(Ag-m-Triz)for the first time to achieve selectively converting CO_(2)to carbon monoxide(CO).This Ag-m-Triz exhibits excellent performance for CO_(2)reduction with a high CO Faradaic efficiency(FECO)of 99.2%and CO partial current density of 85.0 mA cm^(-2)at-2.3 V ***/Agt in H-cell when combined with the ionic liquid-based electrolyte,30 wt%1-butyl-3-methylimidazolium hexafluorophosphate([Bmim][PF6])-65 wt%acetonitrile(AcN)-5 wt%H2O,which is 2.5-fold higher than the current density in Ag-powder under the same *** studies confirm that the significantly improved performance of Ag-m-Triz originates from(i)the stronger adsorption ability of CO_(2)molecule and(ii)the weaker binding energy to form the COOH*intermediate on the surface of Ag-m-Triz compared with the Ag-powder catalyst,which boosts the conversion of CO_(2)to *** research provides a facile way to regulate electrocatalysts for efficient CO_(2)reduction by introducing functionalized molecules.

关键词： CO_(2)reduction CO Electrochemical Molecule-regulated Silver Ionic liquid

来源：评论

学校读者我要写书评

暂无评论

Observer-based stabilization for discrete nonlinear semi-Markov jump singularly perturbed models with mode-switching delay

引用

Science China(Information Sciences) 2025年第4期68卷 389-390页

作者： Wenhai QI Runkun LI Ju H.PARK Zheng-Guang WU Huaicheng YAN School of Engineering Qufu Normal University Department of Electrical Engineering Yeungnam University Institute of Cyber-Systems and Control Zhejiang University Key Laboratory of Smart Manufacturing in Energy Chemical Process of Ministry of Education East China University of Science and Technology

Semi-Markov jump systems(S-MJMs) not only characterize hybrid systems but also address the limitations of Markov jump systems(MJMs) [1–3]. Due to their ability to exhibit multi-time-scale features, singularly perturbed models(SPMs) effectively model practical systems influenced by multiple time-scale phenomena [4]. In this study, the observer-based output feedback controller is asynchronous with the original system due to the time delay in the controller mode switching. A nonlinear plant with singularly perturbed parameters(SPPs) is represented using an interval type-2(IT2) fuzzy model [5].

关键词：

来源：评论

学校读者我要写书评

暂无评论

Letter to the Editor regarding "Methodological framework for life cycle assessment of sustainable aviation (SA) systems"

引用

Science of the Total Environment 2025年 979卷

作者： Weinold, Michael P. McKenna, Russell Laboratory for Energy Systems Analysis PSI Centers for Nuclear Engineering & Sciences and Energy & Environmental Sciences Villigen Switzerland Chair of Energy Systems Analysis Institute of Energy and Process Engineering Department of Mechanical and Process Engineering ETH Zurich Zurich Switzerland

来源：评论

学校读者我要写书评

暂无评论

Letter to the Editor regarding "A comparison and methodological proposal for hybrid approaches to quantify environmental impacts: A case study for renewable energies"

引用

Science of the Total Environment 2025年 964卷 178388页

作者： Weinold, Michael P. Laboratory for Energy Systems Analysis PSI Centers for Nuclear Engineering & Sciences and Energy & Environmental Sciences Villigen Switzerland Chair of Energy Systems Analysis Institute of Energy and Process Engineering Department of Mechanical and Process Engineering ETH Zurich Zurich Switzerland

来源：评论

学校读者我要写书评

暂无评论

Promoting effect of d-band center and in-situ precipitation strategy on sulfur evolution reaction

引用

Journal of energy Chemistry 2025年第5期104卷 740-748页

作者： Jun Pu Yun Tan Jiasen Yin Zihan Shen Shoujie Liu Kai Zhang Lei Zhou Yagang Yao Key Laboratory of Functional Molecular Solids Ministry of EducationAnhui Provincial Engineering Laboratory for New-Energy Vehicle Battery Energy-Storage MaterialsCollege of Chemistry and Materials ScienceAnhui Normal UniversityWuhu 241002AnhuiChina National Laboratory of Solid State Microstructures College of Engineering and Applied SciencesJiangsu Key Laboratory of Artificial Functional MaterialsCollaborative Innovation Center of Advanced MicrostructuresNanjing UniversityNanjing 210093JiangsuChina State Key Laboratory of Multiphase Complex Systems Institute of Process EngineeringChinese Academy of SciencesBeijing 100190China School of Materials Science and Engineering Anhui UniversityHefei 230601AnhuiChina School of Energy and Power Engineering Jiangsu UniversityZhenjiang 212013JiangsuChina Department of Electrical Engineering Eindhoven University of TechnologyEindhoven MB 5600the Netherlands

The slow conversion of polyphase in lithium-sulfur(Li-S)batteries not only intensifies the shuttle effect of lithium polysulfides(LiPSs),but also causes the continuous accumulation of inactive sulfur species,resulting in rapid capacity attenuation and sluggish dynamic ***,the promoting effect of atomic interface stress on sulfur reaction was investigated via CoFe-CoFe_(2)O_(4)heterogeneous nanosheets with a cavity *** strain force induced by the in-situ precipitation of Co Fe bimetallic alloy in oxide matrix increased the d-band center,which was conducive to the interaction between catalyst and Li *** sulfur cathode based on this two-dimensional(2D)nanosheet design showed an extremely high capacity of 751 mAh g^(-1)at 4 *** with a sulfur loading of 5.55 mg cm^(-2),its area capacity was still as high as 7.15 mAh cm^(-2).Meanwhile,the enhanced stability greatly improved the practical potential of Li-S batteries.

关键词： 2D nanosheets In-situ precipitation Strain effect D-band center Li-S batteries

来源：评论

学校读者我要写书评

暂无评论

Identifying Dealbreakers and Robust Policies for the energy Transition Amid Unexpected Events

arXiv

引用

arXiv 2025年

作者： Coppitters, Diederik Wiest, Gabriel Göke, Leonard Contino, Francesco Bardow, André Moret, Stefano Place du Levant 2 Louvain-la-Neuve1348 Belgium Energy & Process Systems Engineering Department of Mechanical and Process Engineering ETH Zürich Switzerland Reliability and Risk Engineering Institute of Energy and Process Engineering ETH Zürich Switzerland

Disruptions in energy imports, backlash in social acceptance, and novel technologies failing to develop are unexpected events that are often overlooked in energy planning, despite their ability to jeopardize the energy transition. We propose a method to explore unexpected events and assess their impact on the transition pathway of a large-scale whole-energy system. First, we evaluate unexpected events assuming "perfect foresight", where decision-makers can anticipate such events in advance. This allows us to identify dealbreakers, i.e., conditions that make the transition infeasible. Then, we assess the events under "limited foresight" to evaluate the robustness of early-stage decisions against unforeseen unexpected events and the costs associated with managing them. A case study for Belgium demonstrates that a lack of electrofuel imports in 2050 is the main dealbreaker, while accelerating the deployment of renewables is the most robust policy. Our transferable method can help policymakers identify key dealbreakers and devise robust energy transition policies. Copyright © 2025, The Authors. All rights reserved.

关键词： energy transition

来源：评论

学校读者我要写书评

暂无评论

Single-Electrode Electrostatic Repulsion Phenomenon for Remote Actuation and Manipulation

引用

Research 2025年第1期2024卷 333-345页

作者： Wei Tang Dong Yan Kecheng Qin Xinyu Guo Yiding Zhong Huxiu Xu Huayong Yang Jun Zou State Key Laboratory of Fluid Power and Mechatronic Systems Zhejiang UniversityHangzhouChina School of Mechanical Engineering Zhejiang UniversityHangzhouChina Institute of Process Equipment College of Energy EngineeringZhejiang UniversityHangzhouChina

One of the fundamental principles of electrostatics is that an uncharged object will be attracted to a charged object through electrostatic induction as the two approaches one *** refer to the charged object as a single electrode and examine the scenario where a positive voltage is *** of electrostatic induction phenomenon,single-electrode electrostatics only generates electrostatic attraction ***,we discover that single-electrode electrostatics can generate electrostatic repulsion forces and define this new phenomenon as single-electrode electrostatic repulsion *** investigate the fundamental electrostatic phenomena,giving a curve of electrostatic force versus voltage and then defining 3 *** actuation and manipulation are essential technologies that are of enormous concern,with tweezers playing an important *** tweezers designed on the basis of external fields of optics,acoustics,and magnetism can be used for remote actuation and manipulation,but some inherent drawbacks still *** would benefit greatly from our discovery in *** the basis of this discovery,we propose the concept of electrostatic tweezers,which can achieve noncontact and remote actuation and *** characterizations and successful applications in metamaterials,robots,and manipulating objects demonstrated that electrostatic tweezers can produce large deformation rates(>6,000%),fast actuation(>100 Hz),and remote manipulating distance(~15 cm)and have the advantages of simple device structure,easy control,lightweight,no dielectric breakdown,and low *** work may deepen people's understanding of single-electrode electrostatics and opens new opportunities for remote actuation and manipulation.

关键词： electrostatic induction remote actuation single electrode single electrode electrostatics charged object electrostatic repulsion

来源：评论

学校读者我要写书评

暂无评论

Biosorbent silver nanoparticles decorated coffee-ground waste composite for cleaning water and antimicrobial applications

引用

Environmental Science and Pollution Research 2025年第5期32卷 2280-2297页

作者： Al-Ghamdi, Azza A. Ibrahim, Sherif M. Lu, Xingmei Xin, Jiayu El-Sayed, Ibrahim El-Tantawy Galhoum, Ahmed A. Wageh, Swelm. Department of Chemistry College of Science Imam Abdulrahman Bin Faisal University P.O. Box 1982 Dammam31441 Saudi Arabia Renewable and Sustainable Energy Unit Imam Abdulrahman Bin Faisal University P.O. Box 1982 Dammam31441 Saudi Arabia Nuclear Materials Authority P.O. Box 530 El-Maadi Cairo Egypt Beijing Key Laboratory of Ionic Liquids Clean Process CAS Key Laboratory of Green Process and Engineering State Key Laboratory of Multiphase Complex Systems Innovation Academy for Green Manufacture Institute of Process Engineering Chinese Academy of Sciences Beijing100190 China School of Chemistry and Chemical Engineering University of Chinese Academy of Sciences Beijing100049 China Sino Danish College University of Chinese Academy of Sciences Beijing100049 China Chemistry Department Faculty of Science Menoufia University Shebin El-Kom Egypt Department of Physics Faculty of Science King Abdulaziz University Jeddah21589 Saudi Arabia

A sustainable biosorbent, silver nanoparticles-decorated coffee-ground waste (CWAg), was synthesized through a simple in-situ reduction method. CWAg is extensively characterized via SEM–EDX, PZC, FTIR, XRD, HR-TEM, and XPS analyses. The biosorbent was tested to remove chromium (Cr(VI)) and methylene blue (MB) from wastewater, and its antibacterial properties was evaluated. CWAg demonstrated efficient sorption efficiencies, achieving ⁓149.9 mg/g at 323 K and pH: 2.0 for Cr(VI) and ⁓113.4 mg/g at 293 K and pH: 6.0 for MB, at a biosorbent dose of 1 g/L. The equilibration times were 90 and 120 min for Cr(VI) and MB, with half-sorption times (tHST) of 9.2 and 13.9 min, respectively. The sorption mechanisms were successfully fitted with Sips isotherm and Pseudo-second-order models. Simultaneous sorption of MB and Cr(VI) at pH 2.0 exhibited antagonism, while a synergistic effect was observed at pH 6.0. Desorption and regeneration were achieved using NaOH and HCl solutions for Cr(VI) and MB, respectively. The efficiencies were just reduced by 9–13%. Finally, CWAg exhibited remarkable effectiveness for removing Cr(VI) from complex tannery effluent. Moreover, CWAg demonstrated positive antibacterial effects against both Gram-positive and Gram-negative bacteria, surpassing raw coffee-ground waste, underscoring the significant role of silver nanoparticles in enhancing bacterial inhibition. © The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature 2024.

关键词： Silver nanoparticles

来源：评论

学校读者我要写书评

暂无评论

Ti3C2Tx MXene decorated with CoMnO3 / CoMn2O4 nanoparticles as electrocatalysts for anion exchange membrane water electrolysis

引用

International Journal of Hydrogen energy 2025年 137卷 202-213页

作者： Kalaiselvi, C. Kannan, Karthik Pandian, Muthu Senthil Devi, Nitika Arpornwichanop, Amornchai Chandar, N. Krishna Chen, Yong-Song Department of Physics School of Advanced Sciences Vellore Institute of Technology Vellore632014 India Department of Mechanical Engineering National Chung Cheng University and Advanced Institute of Manufacturing with High-Tech Innovations National Chung Cheng University Chiayi County621301 Taiwan SSN Research Centre Department of Physics Sri Sivasubramaniya Nadar College of Engineering Kalavakkam Tamil Nadu Chennai603110 India Electrochemical Power Sources Division CSIR-Central Electrochemical Research Institute Karaikudi630003 India Center of Excellence in Process and Energy Systems Engineering Department of Chemical Engineering Faculty of Engineering Chulalongkorn University Bangkok10330 Thailand

The progress of effective electrocatalysts for hydrogen-oxygen evolution reaction (HER-OER). Water electrolysis using an anion exchange membrane (AEM) is a promising low-cost method of producing "green" hydrogen. In the present study, CoMnO3/CoMn2O4–Ti3C2Tx nanocomposites were developed with various loadings of Ti3C2Tx using the electrostatic self-assembly method. XRD, SEM, and TEM with EDAX were utilized to analyze the physicochemical properties of the nanocomposites. The cubic spinel/rhombohedral structure of CoMnO3/CoMn2O4 was established by the XRD. The SEM and TEM morphology reveals that the Ti3C2Tx MXene sheets have been decorated with spherical CoMnO3/CoMn2O4 nanoparticles. The interlayer spacing of Ti3C2Tx MXene sheets (56 nm) and the average diameter of CoMnO3/CoMn2O4 nanoparticles (46 nm) were measured via TEM examination. The CoMn2O4 − Ti3C2Tx MXene (20 wt%) enabled a high-performance AEM electrolyzer, attaining an extraordinary current density of 520 mA cm−2 at 1.8 V. © 2025 Hydrogen energy Publications LLC

关键词： Electrolysis

来源：评论

学校读者我要写书评

暂无评论

CO2 adsorption on microporous metal–organic frameworks unraveled by high-resolution X-ray computed tomography

e-Journal of Nondestructive Testing

引用

e-Journal of Nondestructive Testing 2025年第2期30卷

作者： Karmoker, Diponker Martinez-Garcia, Jorge Gwerder, Damian Fumey, Benjamin Borgschulte, Andreas Schuetz, Philipp Competence Centre for Thermal Energy Systems and Process Engineering Lucerne University of Applied Sciences and Arts Horw Switzerland Competence Centre for Thermal Energy Storage Lucerne University of Applied Sciences and Arts Horw Switzerland Department of Civil Engineering Indian Institute of Technology Roorkee Uttarakhand India Chemical Energy Carriers and Vehicle Systems Laboratory Empa - Swiss Federal Laboratories for Materials Science and Technology Überlandstrasse 129 Dübendorf8600 Switzerland Department of Chemistry University of Zürich Winterthurerstrasse 190 Zürich8057 Switzerland

The continuous increase in atmospheric carbon dioxide (CO2) concentration has triggered global warming and climate change. Strong policies and novel, cost-effective CO2 control methods have been developed to mitigate these issues over the last years. Metal-organic frameworks (MOFs) have emerged as one of the most rapidly advancing areas of research in chemistry, driven by advancements in synthesis, structure determination, interdisciplinary research, and broadening applications. MOFs porous materials demonstrate significant CO2 capture and conversion capabilities due to their tunable physical and chemical properties. Characterization of the MOF’s pore structure and its effect on CO2 adsorption are crucial to understanding the CO2 storage mechanisms and, thus, for optimal MOF design. This study uses X-ray computed tomography (XCT) to investigate non-destructively how CO2 is adsorbed on MOF’s particles. This contribution presents the characterization of the micron-scale pore structure of a single MOF particle. The collected imaging data is used to calculate the effective permeability along the MOF’s particle through numerical simulations. Findings reveal that the pore connectivity decreases with the particle penetration length, thus reducing the available surface area for adsorption. Additionally, the permeability near the particle surface is found to be 6.39 times higher than inside the particle. Potential CO2 location sites at the particle surfaces were also identified and visualized. © 2025, null. All rights reserved.

关键词： Tropics

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：