检索结果-南通市图书馆

Transition metal-ion mediated sulfur redox chemistry for aqueous batteries

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

National Science Review 2023年第6期10卷 46-47页

作者： Mingliang Yu xiulei ji Department of Chemistry Oregon State University

Aqueous batteries represent promising solutions for grid-scale energy storage with the benefits of low-cost and high safety [1,2].Tremendous efforts have been devoted to identifying highcapacity cathode materials to couple the zinc metal anode [3].Sulfur exhibits a high theoretical specific capacity by transferring two electrons per atomic mass of 32.065 in forming a sulfide *** nonaqueous electrolytes,the operation potentials of the sulfur electrode are often maligned being below par at-0.9 V vs standard hydrogen electrode (SHE),where alkali metal ions serve as the charge ***,

关键词：

Counter-ion insertion of chloride in Mn3O4 as cathode for dual-ion batteries: A new mechanism of electrosynthesis for reversible anion storage

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Carbon Energy 2020年第3期2卷 437-442页

作者： Heng jiang xiulei ji Department of Chemistry Oregon State UniversityCorvallisOregon

Irreversible reductive insertion of Zn2+transforms Mn3O4 such that the resulting Zn0.2Mn3O4 exhibits highly reversible storage properties of chloride ions,thus rendering Zn0.2Mn3O4 an excellent cathode of aqueous dual-ion *** Zn2+trapped,Zn0.2Mn3O4 delivers the chloride-storage capacity over 200 mAh/g at an average potential of 1.6 V vs Zn2+/Zn by reversibly forming a new ionic compound equivalent to *** quartz crystal microbalance results suggest chloride as the primary charge carrier in the reversible oxidative anion *** Mn3O4 anion-hosting cathode couples with Zn metal anode in a full-cell dual-ion battery,demonstrating stable cycling in practical pouch cells with an energy density of 150 Wh/kg based on the mass of both electrodes.

关键词： anion insertion counter-ion insertion dual-ion battery metal oxide cathode Zn batteries

A perspective of ZnCl_(2)electrolytes:The physical and electrochemical properties

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

eScience 2021年第2期1卷 99-107页

作者： xiulei ji Department of Chemistry Oregon State UniversityCorvallisOR97331United States

Molten ZnCl_(2)hydrates are ionic liquids at room temperature,which exhibit intriguing physical and electrochemical *** efforts have been devoted over several decades to understanding the properties of the molten ZnCl_(2)hydrates that have been dubbed as water-in-salt electrolytes *** physical properties of molten ZnCl_(2)hydrates can be described from the perspectives of ions in their speciation and water molecules regarding their chemical ***,attention has been given to molten ZnCl_(2)hydrates as electrolytes for Zn metal *** was revealed that the physical properties of such electrolytes have rich implications in their electrochemical ***,it demands a holistic understanding of the physical and electrochemical properties of molten ZnCl_(2)hydrates to design functional electrolytes to serve high-performing Zn metal *** perspective attempts to review the works that described the properties of concentrated ZnCl_(2)as an ionic liquid and as an emerging *** author also provides a perspective to highlight the needs of future research to circumvent the limits of this electrolyte.

关键词： Energy storage Battery Electrolyte Molten salt ZnCl_(2) Water in salt

A review of halide charge carriers for rocking-chair and dual-ion batteries

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Carbon Energy 2021年第4期3卷 627-653页

作者： Sean KSandstrom Xin Chen xiulei ji Department of Chemistry Oregon State UniversityCorvallisOregonUSA

This review discusses how halide ion species have been used as charge carriers in both anion rocking-chair and dual-ion battery(DIB)*** anion rocking-chair batteries based on fluoride and chloride have emerged over the past decade and are garnering increased research interest due to their large theoretical energy density values and the natural abundance of halide-containing ***,DIBs that use halide species as their anionic charge carrier are seen as one of the promising next-generation battery technologies due to their low cost and high working *** numerous polyatomic anions have been studied as charge carriers,the use of single halide ions(i.e.,F−and Cl−)and metal-based superhalides(e.g.,[MgCl_(3)]−)as anionic charge carriers in DIBs has been considerably less ***,we provide an overview of some of the key advances and recent progress that has been made with regard to halide ion charge carriers in electrochemical energy *** offer our perspectives on the current state of the field and provide a roadmap in hopes that it helps researchers toward making new advances in these promising and emerging areas.

关键词： charge carrier dual-ion battery halide rocking-chair battery superhalide

ZnS coating of cathode facilitates lean‐electrolyte Li‐S batteries

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Carbon Energy 2019年第2期1卷 165-172页

作者： Woochul Shin Jun Lu xiulei ji Department of Chemistry Oregon State UniversityCorvallisOregon Chemical Sciences and Engineering Division Argonne National LaboratoryLemontIllinois

Tremendous effort has been devoted to lithium‐sulfur batteries,where flooded electrolytes have been employed *** use of lean electrolytes albeit indispensable for practical applications often causes low capacity and fast capacity fading of the sulfur cathode;thus,the electrolyte/sulfur active mass ratios below 5μL/mg have been rarely ***,we demonstrate that ZnS coating transforms sulfur cathode materials electrolyte‐philic,which tremendously promotes the performance in lean *** ZnS‐coated Li2S@graphene cathode delivers an initial discharge capacity of 944mAh/g at an E/S ratio of 2μL/mg at the active mass loading of 5.0 mg Li2S/cm^2,corresponding to an impressive specific energy of 500Wh/kg based on the mass of cathode,electrolyte,and the assumed minimal mass of lithium metal *** functional theory calculations reveal strong binding between ZnS crystals and electrolyte solvent molecules,explaining the better wetting *** also demonstrate the reversible cycling of a hybrid cathode of ZnS‐coated Li2S@graphene mixed with VS2 as an additive at an E/AM(active mass)ratio of 1.1μL/mg,equivalent to the specific energy of 432 Wh/kg on the basis of the mass of electrodes and electrolyte.

关键词： electrolyte‐philic lean electrolyte Li2S cathode lithium‐sulfur battery ZnS coating

Prussian Blue Analogues as Electrodes for Aqueous Monovalent Ion Batteries

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Electrochemical Energy Reviews 2022年第2期5卷 242-262页

作者： Shen Qiu Yunkai Xu Xianyong Wu xiulei ji Department of Chemistry Oregon State UniversityCorvallisOR 97331‑4003USA

Aqueous batteries have engendered increasing attention as promising solutions for stationary energy storage due to their potentially low cost and innate *** various aqueous battery systems,Prussian blue analogues(PBAs)represent a class of promising electrode materials with fascinating electrochemical performance,owing to their large open frameworks,abundant ion insertion sites,and facile *** date,PBAs have shown substantial progress towards storage of alkali metal ions(Li^(+),Na^(+),and K^(+)),H^(+),and NH4^(+) in aqueous electrolytes,which,however,has yet not been specifically *** review selects some representative research to introduce the progress of PBAs in these battery systems and aims to discuss the crucial role of ionic charge carrier in affecting the overall electrode ***,some critical knowledge gaps and challenges of PBA materials have been pointed out for future development.

关键词： Prussian blue analogues Aqueous batteries Monovalent ion storage

Improved flexible Li-ion hybrid capacitors： Techniques for superior stability

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Nano Research 2017年第12期10卷 4448-4456页

作者： Shengyang Dong Hongsen Li Junjun Wang Xiaogang Zhang xiulei ji jiangsu Key Laboratory of Materials and Technology for Energy Conversion College of Material Science and Engineering Nanjing University of Aeronautics and Astronautics Nanjing 210016 China Department of Chemistry Oregon State University Corvallis Oregon 97331-4003 USA

Flexible power devices play an increasingly crucial role in emerging flexible electronics. To improve the electrochemical performance of flexible power devices, novel electrode structures and new energy-storage systems should be designed. Herein, a novel flexible Li-ion hybrid capacitor （LIC） is designed based on an anode comprising Li4TisO12 nanoplate arrays coated on carbon textile （LTO/CT） and a cathode comprising a flexible N-doped graphene/carbon-nanotube composite （NGC） film. The LTO/CT anode is fabricated by directly growing Li4TisO12 nano- plates on CT with robust adhesion using a simple one-pot hydrothermal reaction. Considering the volume of a real-device flexible LIC, the NGC//LTO/CT con- figuration delivers high volumetric energy and power densities of 2 mWh·cm-3 and 185 mW·cm-3, respectively. Furthermore, the flexible LIC shows excellent flexibility and electrochemical stability, with extremely small capacity fluctuation under different bending states. This work demonstrates a scalable route to assemble flexible LICs as high-performance power devices.

关键词： flexible devices Li-ion hybrid capacitors Li4TisO^2 nanoplates graphene carbon nanotube

Carbon energy: A multidisciplinary exploration of energy technologies and carbon materials science

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Carbon Energy 2019年第1期1卷 4-5页

作者： Shun Wang xiulei ji Jong Hyeok Park jichang Wang Xin Wang College of Chemistry and Materials Engineering Wenzhou UniversityWenzhouChina Department of Chemistry Oregon State of UniversityCorvallisOregon Department of Chemical and Biomolecular Engineering Yonsei UniversitySeoulRepublic of Korea Department of Chemistry and Biochemistry University of WindsorWindsorCanada School of Chemical and Biomedical Engineering Nanyang Technological UniversitySingapore

Today’s world is stressed by the ever-increasing demand for energy and the disastrous climate *** technologies that generate,convert,and store energy in a greener and more efficient way become increasingly critical in building a sustainable *** this front,batteries,capacitors,fuel cells,and solar cells play the indispensable roles as the powers for applications,for example,electric vehicles shall mitigate our reliance on the depleting fossil *** is crucial to invent new materials or technologies to improve the electrochemical performance of energy storage/conversion devices with higher energy,better power,longer cycle life,and better *** of the most important areas pertains to carbon-based *** from different fields design carbon-based materials for low-cost energy devices with great portability and functionality.

关键词： carbon energy store

Burning magnesium in carbon dioxide for highly effective phosphate removal

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Carbon Energy 2021年第2期3卷 330-337页

作者： Ying Yao Lei Yu Meiling Wang Alvin Dai Yan Zhang Qiubo Guo Yulin Lin jianguoWen Feng Wu xiulei ji Jun Lu School of Materials Science and Engineering Beijing Key Laboratory of Environmental Science and EngineeringBeijing Institute of TechnologyBeijingChina Center for Nanoscale Materials Argonne National LaboratoryLemontIllinois Chemical Sciences and Engineering Division Argonne National LaboratoryLemontIllinois Department of Chemistry Oregon State UniversityCorvallisOregon

Magnesium oxide was found to have high-phosphate-affinity as an effective component to enhance the phosphate removal ability of common adsorbent ***,the currently prepared MgO-based hybrid adsorbents by conventional methods still suffer from the limited low loading of MgO and inferior removal performances,much far away from practical *** this study,an ingenious carbon coated MgO nanocomposite is designed by directly burning magnesium in CO_(2),a well-known textbook reaction.X-ray diffraction analysis,scanning electron microscope and aberration-corrected high-resolution transmission electron microscope demonstrate the sample is well ***,the high content of nanosized MgO combined with defect-rich carbon layer brings unprecedented phosphate removal capacity of 1135.0 mg/g,removal rate of 99% and benign compatibility with coexisting anions and solution ***,the removal mechanism is also investigated in detail by characterizing the sample before and after adsorption.

关键词： carbon dioxide carbon layer magnesium oxide nanocomposite phosphorus removal