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Cu3(PO4)2: Novel Anion Convertor for Aqueous Dual‑Ion Battery

Nano-Micro Letters 2021年第3期13卷 1-8页

作者： Haoxiang Yu Chenchen Deng Huihui Yan maoting xia Xikun Zhang Zhen‑Bo Wang Jie Shu School of Materials Science and Chemical Engineering Ningbo UniversityNingbo 315211ZhejiangPeople’s Republic of China MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage School of Chemistry and Chemical EngineeringState Key Lab of Urban Water Resource and EnvironmentHarbin Institute of TechnologyHarbin 150001HeilongjiangPeople’s Republic of China Key Laboratory of Advanced Energy Materials Chemistry(Ministry of Education) College of ChemistryNankai UniversityTianjin 300071People’s Republic of China

Electrode materials which can reversibly react with anions are of interest for aqueous dual-ion batteries.Herein,we propose a novel anion electrode,Cu3(PO4)2,for constructing an aqueous dual-ion cell.The Cu3(PO4)2 electrode can operate in a quasi-neutral condition and deliver a reversible capacity of 115.6 mAh g^−1 with a well-defined plateau at−0.17 V versus Ag/AgCl.Its reaction mechanism shows that Cu3(PO4)2 decomposes into Cu2O and subsequently is converted into Cu during the initial discharge process.In the following charge process,Cu is oxidized into Cu2O.It suggests Cu3(PO4)2 reacts with OH−ions instead of PO43−ions after the initial discharge process and its potential thereby depends upon the OH−ions concentration in electrolyte.Additionally,an aqueous dual-ion cell is built by using pretreated Cu3(PO4)2 and Na0.44MnO2 as anode and cathode,respectively.During cycling,OH−ions and Na^+ions in electrolyte can be stored and released.Such a cell can provide a discharge capacity of 52.6 mAh g^−1 with plateaus at 0.70 and 0.45 V,exhibiting the potential of application.This work presents an available aqueous dual-ion cell and provides new insights into renewable energy storage and adjustment of the OH−ions concentration in aqueous buffer solution.

关键词： Dual-ion battery Aqueous electrolyte Cu3(PO4)2 Electrochemistry Three-electrode cell

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Hydrogen Bond-Assisted Ultra-Stable and Fast Aqueous NH_(4)^(+)Storage

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Nano-Micro Letters 2021年第9期13卷 193-208页

作者： Xikun Zhang maoting xia Haoxiang Yu Junwei Zhang Zhengwei Yang Liyuan Zhang Jie Shu School of Materials Science and Chemical Engineering Ningbo UniversityNingboZhejiang 315211People’s Republic of China

Aqueous ammonium ion batteries are regarded as eco-friendly and sustainable energy storage systems.And applicable host for NH_(4)^(+)in aqueous solution is always in the process of development.On the basis of density functional theory calcula-tions,the excellent performance of NH_(4)^(+)insertion in Prussian blue analogues(PBAs)is proposed,especially for copper hexacyanoferrate(CuHCF).In this work,we prove the outstanding cycling and rate performance of CuHCF via electrochemical analyses,delivering no capacity fading during ultra-long cycles of 3000 times and high capacity retention of 93.6%at 50 C.One of main contributions to superior performance from highly reversible redox reaction and structural change is verified during the ammoniation/de-ammoniation progresses.More importantly,we propose the NH_(4)^(+)diffusion mechanism in CuHCF based on con-tinuous formation and fracture of hydrogen bonds from a joint theoretical and experimental study,which is another essential reason for rapid charge transfer and superior NH_(4)^(+)storage.Lastly,a full cell by coupling CuHCF cathode and polyaniline anode is constructed to explore the practical application of CuHCF.In brief,the outstanding aqueous NH_(4)^(+)storage in cubic PBAs creates a blueprint for fast and sustainable energy storage.

关键词： Aqueous ammonium ion batteries Copper hexacyanoferrate Ultra-long cycling performance Excellent rate performance Hydrogen bonds

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Prussian Blue Analogues in Aqueous Batteries and Desalination Batteries

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Nano-Micro Letters 2021年第11期13卷 92-127页

作者： Chiwei Xu Zhengwei Yang Xikun Zhang maoting xia Huihui Yan Jing Li Haoxiang Yu Liyuan Zhang Jie Shu School of Materials Science and Chemical Engineering Ningbo UniversityNingbo 315211ZhejiangPeople’s Republic of China

In the applications of large-scale energy storage,aqueous batteries are considered as rivals for organic batteries due to their environmentally friendly and low-cost nature.However,carrier ions always exhibit huge hydrated radius in aqueous electrolyte,which brings difficulty to find suitable host materials that can achieve highly reversible insertion and extraction of cations.Owing to open threedimensional rigid framework and facile synthesis,Prussian blue analogues(PBAs)receive the most extensive attention among various host candidates in aqueous system.Herein,a comprehensive review on recent progresses of PBAs in aqueous batteries is presented.Based on the application in different aqueous systems,the relationship between electrochemical behaviors(redox potential,capacity,cycling stability and rate performance)and structural characteristics(preparation method,structure type,particle size,morphology,crystallinity,defect,metal atom in highspin state and chemical composition)is analyzed and summarized thoroughly.It can be concluded that the required type of PBAs is different for various carrier ions.In particular,the desalination batteries worked with the same mechanism as aqueous batteries are also discussed in detail to introduce the application of PBAs in aqueous systems comprehensively.This report can help the readers to understand the relationship between physical/chemical characteristics and electrochemical properties for PBAs and find a way to fabricate high-performance PBAs in aqueous batteries and desalination batteries.

关键词： Prussian blue analogues Electrochemistry Cathode Aqueous batteries Desalination batteries

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PNb_(9)O_(25) nanofiber as a high-voltage anode material for advanced lithium ions batteries

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Journal of Materiomics 2020年第4期6卷 781-787页

作者： Haoxiang Yu Jundong Zhang maoting xia Chenchen Deng Xikun Zhang Runtian Zheng Shi Chen Jie Shu Zhen-Bo Wang MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage State Key Lab of Urban Water Resource and EnvironmentSchool of Chemistry and Chemical EngineeringHarbin Institute of TechnologyNo.92 West-Da Zhi StreetHarbin150001Heilongjiang ProvinceChina Faculty of Materials Science and Chemical Engineering Ningbo UniversityNo.818 Fenghua RoadNingbo315211Zhejiang ProvinceChina Key Laboratory of Advanced Energy Materials Chemistry(Ministry of Education) College of ChemistryNankai UniversityTianjin300071China

If the operating voltage of anode materials is below 1.0 V versus Lit/Li,the side reaction between electrolyte and anode materials will occur extensively.Thus,high-voltage anode materials have aroused interest recently.In this work,we report the preparation of PNb9O25 nanofiber via a facile electrospinning method.The PNb9O25 nanofiber shows the high rate performance and excellent cycling performance when it is used as anode in lithium ions batteries.For instance,the PNb9O25 nanofiber can deliver a capacity of 233,212.1,193.8,and 181.4 mA h g^(-1) at 0.2,1,3,and 6C,respectively.After 1000 cycles,it can reach at 134.3 mA h g^(-1) with capacity retention of 70.9%.Meanwhile,the ex situ X-ray photoelectron spectroscopy technique has been adopted to investigate the evolution in valence state of each element for PNb9O25 nanofiber.In addition,the PNb9O25 nanofiber is chosen as the anode material in lithium ion full cell in this work,demonstrating the potential for practical application.

关键词： PNb9O25 Nanofiber Electrospinning Anode Lithium ion batteries

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不同干燥方式对姜黄中姜黄素和姜黄油的影响

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浙江农业科学 2024年第2期65卷 436-442页

作者：吴双袁茂廷夏修新刘国豪倪穗宁波大学海洋学院浙江宁波315211

以新鲜姜黄根茎为原料,采用高效液相色谱法、水蒸气蒸馏法及气相色谱质谱联用(GC-MS)等方法研究了晒干、阴干、30℃热风烘干、60℃热风烘干和冷冻干燥5种干燥方式对姜黄素的相对含量和姜黄油组分组成的影响。结果表明,不同干燥方式下,... 详细信息

以新鲜姜黄根茎为原料,采用高效液相色谱法、水蒸气蒸馏法及气相色谱质谱联用(GC-MS)等方法研究了晒干、阴干、30℃热风烘干、60℃热风烘干和冷冻干燥5种干燥方式对姜黄素的相对含量和姜黄油组分组成的影响。结果表明,不同干燥方式下,姜黄素的相对含量和姜黄油的含量及组分的变化较大,但姜黄的色度变化较小,其中自然阴干方式下姜黄素和姜黄挥发油含量相对较高,分别为1.84%、6.15%。研究结果为姜黄的开发利用和产品加工提供一定的技术支持。

关键词：姜黄干燥方式姜黄素姜黄油高效液相色谱法

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Correction to:Prussian Blue Analogues in Aqueous Batteries and Desalination Batteries

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Nano-Micro Letters 2021年第11期13卷 427-427页

Correction to:Nano‑Micro Lett.(2021)13:166 https://***/10.1007/s40820-021-00700-9 In the published article the authors equal contribution statement is incorrect in the foot note.The correct statement should be read as... 详细信息

关键词： statement equally correct

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