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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 *** applicable host for NH_(4)^(+)in aqueous solution is always in the process of *** 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 *** of main contributions to superior performance from highly reversible redox reaction and structural change is verified during the ammoniation/de-ammoniation *** 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)^(+)***,a full cell by coupling CuHCF cathode and polyaniline anode is constructed to explore the practical application of *** 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

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

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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 ***,we propose a novel anion electrode,Cu3(PO4)2,for constructing an aqueous dual-ion *** 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/*** reaction mechanism shows that Cu3(PO4)2 decomposes into Cu2O and subsequently is converted into Cu during the initial discharge *** the following charge process,Cu is oxidized into *** 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 ***,an aqueous dual-ion cell is built by using pretreated Cu3(PO4)2 and Na0.44MnO2 as anode and cathode,*** cycling,OH−ions and Na^+ions in electrolyte can be stored and *** 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 *** 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

Enabling nickel ferrocyanide nanoparticles for highperformance ammonium ion storage

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Frontiers of Chemical Science and Engineering 2023年第2期17卷 226-235页

作者： haoxiang yu Leiyu Fan Chenchen Deng Huihui Yan Lei Yan Jie Shu Zhen-Bo Wang 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 150001China School of Materials Science and Chemical Engineering Ningbo UniversityNingbo 315211China

Prussian blue and its analogs are extensively investigated as a cathode for ammonium-ion ***,they often suffer from poor electronic ***,we report a Ni_(2)Fe(CN)_(6)/multiwalled carbon nanotube composite electrode material,which is prepared using a simple coprecipitation *** obtained material consists of nanoparticles with sizes 30-50 nm and the multiwalled carbon nanotube embedded in *** existence of multiwalled carbon nanotube ensures that the Ni_(2)Fe(CN)_(6)/multiwalled carbon nanotube composite shows excellent electrochemical performance,achieving a discharge capacity of 55.1 mAh·g^(-1)at 1 C and 43.2 mAh·g^(-1)even at 15 *** increase in the ammoniumion diffusion coefficient and ionic/electron conductivity based on kinetic investigations accounts for their high ***,detailed ex situ characterizations demonstrate that Ni_(2)Fe(CN)_(6)/multiwalled carbon nanotube composite offers three advantages:negligible lattice expansion during cycling,stable structure,and the reversible redox ***,the Ni_(2)Fe(CN)_(6)/multiwalled carbon nanotube composite presents a long cycling life and high rate ***,our study reports a desirable material for ammonium-ion batteries and provides a practical approach for improving the electrochemical performance of Prussian blue and its analogs.

关键词： nickel ferrocyanides NH_(4)^(+) electrochemistry Prussian blue aqueous ammonium ion batteries

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 ***,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 *** to open threedimensional rigid framework and facile synthesis,Prussian blue analogues(PBAs)receive the most extensive attention among various host candidates in aqueous ***,a comprehensive review on recent progresses of PBAs in aqueous batteries is *** 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 *** can be concluded that the required type of PBAs is different for various carrier *** 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 *** 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

Organic interlayer engineering of TiS_(2) for enhanced aqueous Zn ions storage

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Journal of Materials Science & Technology 2023年第9期140卷 135-141页

作者： Chengcheng Huang Yiwen Liu Jing Li Zhonghao Miao Xinhao Cai Zhouxiang Wu haoxiang yu Lei Yan Liyuan Zhang Jie Shu School of Materials Science and Chemical Engineering Ningbo UniversityNingbo 315211China

Aqueous rechargeable zinc-ion batteries(ARZIBs)have a bright future for energy storage due to their high energy density and ***,for traditional ARZIBs,cathode materials always suffer from the limited space for large-sized zinc ions storage and transport,leading to low Coulombic efficiency and inferior cycling *** build a reliable host with large tunnel,1-butyl-1-methylpyrrolidinium ion(PY14^(+))pre-intercalated TiS_(2)(PY14^(+)-TiS_(2))is designed as an alternative intercalation-type *** the insertion organic guest widens the interlayer space of TiS_(2)and buffers the lattice stress generated during the electrochemical cycles,the structural reversibility,cycling stability and kinetics properties of PY14^(+)-TiS_(2) are enhanced greatly.A specific capacity of 130.9 mAh g^(−1) with 84.3%capacity retention over 500 cycles can be achieved at 0.1 A g^(−1).Therefore,this study paves the way for enhancing the aqueous Zn ions storage capability by organic interlayer engineering.

关键词： Pre-intercalation Organic interlayer engineering TiS_(2) Intercalation-type electrode Aqueous zinc-ion batteries

Interlayer gap widened TiS_(2) for highly efficient sodium-ion storage

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Journal of Materials Science & Technology 2022年第12期107卷 64-69页

作者： Chengcheng Huang Yiwen Liu Runtian Zheng Zhengwei Yang Zhonghao Miao Junwei Zhang Xinhao Cai haoxiang yu Liyuan Zhang Jie Shu School of Materials Science and Chemical Engineering Ningbo UniversityNingbo 315211China

As an alternative for lithium-ion batteries(LIBs),sodium-ion batteries(SIBs)have lately received tremendous interest due to their abundant reserves as well as low ***,the lack of suitable anode materials severely hinders the application of sodium-ion ***_(2)is elected as a representative material owing to its unique layered *** it always suffers from capacity fade due to poor electrochemical kinetics and structural *** this work,we fabricate a pre-potassiated TiS_(2)as a host material for sodium storage by an electrochemical pre-potassiation *** intercalation/extraction mechanism,structural changes and reaction kinetics are completely investigated to reveal the outstanding electrochemical property of pre-potassiated TiS_(2)*** turns out that the large interlayer space of pre-potassiated TiS_(2)is conducive to the diffusion of sodium ions,inducing the reduction of entropic barrier for the electrochemical *** addition,the pre-potassiated host structure is still firmly maintained upon repeated ***,the pre-potassiated TiS_(2)presents superior rate capability(165.9 mA h g^(−1) at 1 C and 132.1 mA h g^(−1) at 20 C)and long-term cycling stability(85.3%capacity retention at 5 C after 500 cycles)for *** research provides an avenue to construct long-life sodium energy storage systems based on pre-potassiated TiS_(2).

关键词： Pre-potassiation TiS_(2) Expanded interlayer gap Anode material Sodium-ion batteries

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 ***,high-voltage anode materials have aroused interest *** this work,we report the preparation of PNb9O25 nanofiber via a facile electrospinning *** PNb9O25 nanofiber shows the high rate performance and excellent cycling performance when it is used as anode in lithium ions *** 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,*** 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 *** 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

Construction of ZrNb14O37-x@C nanowires and observation via in-situ and ex-situ techniques for lithium storage

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Construction of ZrNb14O37-x@C nanowires and observation via ...

中国化学会第二十次全国电化学大会

作者： Runtian Zheng Tingting Liu Na Peng Jundong Zhang haoxiang yu Jie Shu Faculty of Materials Science and Chemical Engineering Ningbo University

Based on the high theoretical capacity and relatively high safety voltage, niobium-based oxides are regarded as promising intercalation-type materials for advanced lithium ion batteries [1-2]. However, the electrochemical performances of niobium-based oxides still cannot meet the demand for electrical energy storage applications because of low conductivity and poor electron/ion transfer [3].

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基于超构表面的光谱成像及应用研究进展

光电工程 2023年第8期50卷 15-35页

作者：万源庆刘威骏林若雨余浩祥王漱明南京大学物理学院固体微结构物理国家重点实验室江苏南京210093

作为一种将光谱信息和空间信息相结合的技术,光谱成像在科学研究和工程应用中受到了广泛的关注。设计优化具有亚波长尺度特征的超构表面可以对光场进行高效地调制。本文综述了近年来基于超构表面的光谱成像研究进展,与传统光谱仪相比,... 详细信息

作为一种将光谱信息和空间信息相结合的技术,光谱成像在科学研究和工程应用中受到了广泛的关注。设计优化具有亚波长尺度特征的超构表面可以对光场进行高效地调制。本文综述了近年来基于超构表面的光谱成像研究进展,与传统光谱仪相比,基于超构表面的紧凑型光谱仪具有体积小和光路较为简单的优点,在小型器件中具有较大的应用潜力。根据不同的成像机理,基于超构表面的光谱成像可以分为超色散型、窄带滤波型和宽带滤波型,本文详细介绍了每种成像机理的研究进展,并随后总结了在实际场景中的应用情况,最后展望了超构表面光谱成像的发展方向和应用前景。

关键词：光谱成像超构表面滤波器