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学者姓名:蔡道平

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Crystalline and amorphous Fe2O3 nanocubes grown on electrospun carbon nanofibers for lithium-ion batteries and lithium-sulfur batteries: A comparative study SCIE
期刊论文 | 2024 , 657 | APPLIED SURFACE SCIENCE
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Abstract :

Amorphous transition metal oxides have recently received particular research interests in electrochemical energy storage. However, there is still a lack of direct comparisons between amorphous materials and their crystalline counterparts. Here, we demonstrate the rational synthesis of crystalline and amorphous Fe2O3 nanocubes uniformly grown on carbon nanofibers (denoted as CNFs@C-Fe2O3 and CNFs@A-Fe2O3, respectively) for lithiumion batteries (LIBs) and lithium-sulfur batteries (LSBs). In such a structure, the Fe2O3 nanocubes possess strong interfacial bonding with CNFs, which can ensure rapid electron transportation. Besides, these Fe2O3 nanocubes are highly porous, which can effectively alleviate the volume change, enlarge the surface area, increase active sites and facilitate ion diffusion. When employed as freestanding anode for LIBs, the CNFs@C-Fe2O3 electrode delivers much improved lithium ion storage performance compared to that of CNFs@A-Fe2O3. When evaluated as interlayers for LSBs, instead, the batteries with CNFs@A-Fe2O3 exhibit better rate performance cycling stability than that of with CNFs@C-Fe2O3. Moreover, theoretical calculations elucidate the amorphous Fe2O3 has stronger adsorption ability toward the soluble lithium polysulfides. This work would provide new insights into the reasonably development of crystalline and amorphous transition metal oxides toward electrochemical energy storage.

Keyword :

Amorphous materials Amorphous materials Electrospinning Electrospinning Lithium-ion batteries Lithium-ion batteries Lithium-sulfur batteries Lithium-sulfur batteries Transition metal oxides Transition metal oxides

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GB/T 7714 Si, Junhui , Zhao, Mingliang , Cui, Zhixiang et al. Crystalline and amorphous Fe2O3 nanocubes grown on electrospun carbon nanofibers for lithium-ion batteries and lithium-sulfur batteries: A comparative study [J]. | APPLIED SURFACE SCIENCE , 2024 , 657 .
MLA Si, Junhui et al. "Crystalline and amorphous Fe2O3 nanocubes grown on electrospun carbon nanofibers for lithium-ion batteries and lithium-sulfur batteries: A comparative study" . | APPLIED SURFACE SCIENCE 657 (2024) .
APA Si, Junhui , Zhao, Mingliang , Cui, Zhixiang , Cai, Daoping , Zhan, Hongbing , Wang, Qianting . Crystalline and amorphous Fe2O3 nanocubes grown on electrospun carbon nanofibers for lithium-ion batteries and lithium-sulfur batteries: A comparative study . | APPLIED SURFACE SCIENCE , 2024 , 657 .
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Crystalline and amorphous Fe2O3 nanocubes grown on electrospun carbon nanofibers for lithium-ion batteries and lithium-sulfur batteries: A comparative study EI
期刊论文 | 2024 , 657 | Applied Surface Science
Crystalline and amorphous Fe2O3 nanocubes grown on electrospun carbon nanofibers for lithium-ion batteries and lithium-sulfur batteries: A comparative study Scopus
期刊论文 | 2024 , 657 | Applied Surface Science
Oxygen-incorporated crystalline/amorphous heterophase cobalt vanadium selenide nanoplates with dense interfacial sites for robust lithium-sulfur batteries SCIE
期刊论文 | 2024 , 12 (6) , 3711-3721 | JOURNAL OF MATERIALS CHEMISTRY A
WoS CC Cited Count: 3
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Abstract :

The practical applications of lithium-sulfur (Li-S) batteries are severely impeded by the shuttle effect of soluble lithium polysulfides (LiPSs), sluggish redox reaction kinetics, and insulating nature of sulfur and its discharge products (Li2S2/Li2S). Developing sulfur electrocatalysts with high electrocatalytic activity to accelerate the redox kinetics and polysulfide trapping is critical for Li-S batteries but remains a grand challenge. In this contribution, we demonstrate the delicate design and synthesis of oxygen-incorporated heterophase cobalt vanadium selenide nanoplates with dense crystalline/amorphous interfacial sites (denoted as DC/A O-CoVSe NPs) as high-efficiency sulfur electrocatalysts for Li-S batteries. Such DC/A O-CoVSe NPs possess high electronic conductivity and electrocatalytic activity. Besides, the abundant exposed crystalline/amorphous interfacial sites serve as efficient adsorption-catalytic centers to accelerate the conversion kinetics and alleviate the shuttle effect. Moreover, incorporation of oxygen further increases their affinity to LiPSs because of the introduction of more Li-O interactions. Benefiting from the multifarious advantages, Li-S batteries with DC/A O-CoVSe NP modified separators exhibit high discharge capacity (1400.1 mA h g-1 at 0.1C), excellent rate capability (683.8 mA h g-1 at 5C), and good long-term durability (672.4 mA h g-1 at 1C after 500 cycles with a low decay rate of 0.066% per cycle). Even at a high sulfur loading of 5.6 mg cm-2, the battery still delivers a decent reversible capacity of 658.8 mA h g-1 at 0.2C after 100 cycles, indicating its great potential for practical applications. This work could provide a rational viewpoint for developing high-efficiency sulfur electrocatalysts towards future advanced Li-S energy storage systems. Oxygen-incorporated heterophase cobalt vanadium selenide nanoplates with dense crystalline/amorphous interfacial sites (DC/A O-CoVSe NPs) are developed as high-efficiency sulfur electrocatalysts for lithium-sulfur batteries.

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GB/T 7714 Tan, Pengcheng , Yin, Yuan , Cai, Daoping et al. Oxygen-incorporated crystalline/amorphous heterophase cobalt vanadium selenide nanoplates with dense interfacial sites for robust lithium-sulfur batteries [J]. | JOURNAL OF MATERIALS CHEMISTRY A , 2024 , 12 (6) : 3711-3721 .
MLA Tan, Pengcheng et al. "Oxygen-incorporated crystalline/amorphous heterophase cobalt vanadium selenide nanoplates with dense interfacial sites for robust lithium-sulfur batteries" . | JOURNAL OF MATERIALS CHEMISTRY A 12 . 6 (2024) : 3711-3721 .
APA Tan, Pengcheng , Yin, Yuan , Cai, Daoping , Fei, Ban , Zhang, Chaoqi , Chen, Qidi et al. Oxygen-incorporated crystalline/amorphous heterophase cobalt vanadium selenide nanoplates with dense interfacial sites for robust lithium-sulfur batteries . | JOURNAL OF MATERIALS CHEMISTRY A , 2024 , 12 (6) , 3711-3721 .
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Oxygen-incorporated crystalline/amorphous heterophase cobalt vanadium selenide nanoplates with dense interfacial sites for robust lithium-sulfur batteries EI
期刊论文 | 2024 , 12 (6) , 3711-3721 | Journal of Materials Chemistry A
Oxygen-incorporated crystalline/amorphous heterophase cobalt vanadium selenide nanoplates with dense interfacial sites for robust lithium-sulfur batteries Scopus
期刊论文 | 2024 , 12 (6) , 3711-3721 | Journal of Materials Chemistry A
材料科学与工程专业课题结合式的综合实验教学探索
期刊论文 | 2024 , 38 (03) , 124-128 | 兰州文理学院学报(自然科学版)
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Abstract :

针对传统材料科学与工程专业综合实验教学现状及存在的问题,提出课题结合式的综合实验教学改革.课题结合式的综合实验使学生由被动转为主体,自主进行实验方案设计、样品制备、材料表征及性能分析,结果分析与讨论,从而培养学生理论联系实践、提出问题、分析问题和解决问题的能力,培养学生的团队协作能力和专业交流能力,为学生毕业后走上工作岗位打下良好的基础.

Keyword :

材料科学与工程 材料科学与工程 综合实验 综合实验 课题结合式 课题结合式

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GB/T 7714 陈奇俤 , 陈青青 , 蔡道平 . 材料科学与工程专业课题结合式的综合实验教学探索 [J]. | 兰州文理学院学报(自然科学版) , 2024 , 38 (03) : 124-128 .
MLA 陈奇俤 et al. "材料科学与工程专业课题结合式的综合实验教学探索" . | 兰州文理学院学报(自然科学版) 38 . 03 (2024) : 124-128 .
APA 陈奇俤 , 陈青青 , 蔡道平 . 材料科学与工程专业课题结合式的综合实验教学探索 . | 兰州文理学院学报(自然科学版) , 2024 , 38 (03) , 124-128 .
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材料科学与工程专业课题结合式的综合实验教学探索
期刊论文 | 2024 , 38 (3) , 124-128 | 兰州文理学院学报(自然科学版)
Dual-engineering of tungsten doping and carbon incorporation in vanadium carbide arrays to accelerate the polysulfide conversion for lithium-sulfur batteries Scopus
期刊论文 | 2024 , 498 | Chemical Engineering Journal
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Abstract :

Lithium-sulfur (Li-S) batteries are promising candidates for next-generation electrochemical energy storage systems by virtue of the high energy density, low-cost, and ecofriendliness. Unfortunately, the sluggish sulfur conversion kinetics, notorious shuttle effect of lithium polysulfides (LiPSs) and severe volumetric variation during the lithiation/delithiation process result in insufficient sulfur utilization and fast capacity degradation. Herein, tungsten-doped vanadium carbide nanosheet arrays strongly coupled with a thin nitrogen-doped carbon layer directly grown on carbon cloth substrate (denoted as CC/W-VC@NC) have been conceptually designed as an advanced sulfur host to resolve the aforementioned problems. Specifically, the binder-free CC/W-VC@NC sulfur host not only strongly interacts with LiPSs, but also presents superior electrocatalytic activity for rapid LiPSs conversion. Additionally, the arrayed architecture provides sufficient space for sulfur loading and simultaneously accommodates its volumetric variation. Furthermore, theoretical calculations elucidate that tungsten doping can regulate the electronic structure, improve the electrical conductivity and strengthen the chemisorption toward LiPSs. Attributing to the multifarious advantages, Li-S batteries assembled with CC/W-VC@NC/S cathode exhibit a high initial discharge capacity of 1305.9 mAh/g at 0.1 C, as well as superior rate capability (709.8 mAh/g at 5 C) and good long-term durability (capacity decay rate of only 0.063 % per cycle over 500 cycles at 1 C). This study presents an effective approach to construct transition metal carbides as high-performance sulfur hosts for Li-S batteries. © 2024 Elsevier B.V.

Keyword :

Binder-free Binder-free Conversion kinetics Conversion kinetics Doping Doping Lithium-sulfur batteries Lithium-sulfur batteries Sulfur hosts Sulfur hosts

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GB/T 7714 Zhang, X. , Chen, Y. , Cai, D. et al. Dual-engineering of tungsten doping and carbon incorporation in vanadium carbide arrays to accelerate the polysulfide conversion for lithium-sulfur batteries [J]. | Chemical Engineering Journal , 2024 , 498 .
MLA Zhang, X. et al. "Dual-engineering of tungsten doping and carbon incorporation in vanadium carbide arrays to accelerate the polysulfide conversion for lithium-sulfur batteries" . | Chemical Engineering Journal 498 (2024) .
APA Zhang, X. , Chen, Y. , Cai, D. , Zhang, C. , Chen, Q. , Zhan, H. . Dual-engineering of tungsten doping and carbon incorporation in vanadium carbide arrays to accelerate the polysulfide conversion for lithium-sulfur batteries . | Chemical Engineering Journal , 2024 , 498 .
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Engineering Defect-Rich Bimetallic Telluride with Dense Heterointerfaces for High-Performance Lithium-Sulfur Batteries SCIE
期刊论文 | 2024 , 34 (26) | ADVANCED FUNCTIONAL MATERIALS
WoS CC Cited Count: 22
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Abstract :

Rechargeable lithium-sulfur (Li-S) batteries have received ever-increasing attention owing to their ultrahigh theoretical energy density, low cost, and environmental friendliness. However, their practical application is critically plagued by the sluggish reaction kinetics, shuttling of soluble polysulfide intermediates, and uncontrollable growth of Li dendrites. Herein, a bimetallic telluride electrocatalyst with dense heterointerfaces and rich defects embedded in hollow carbon polyhedron bunches (N subset of CoTe1-x/ZnTe1-y@NC, abbreviated as NCZTC) is rationally designed to simultaneously address the S cathode and Li anode problems. Both experimental and computational results substitute the integration of dense heterointerfaces and rich defects can synergistically modulate the electronic structure, enhance the electrical conductivity, promote the Li+ transportation, strengthen the polysulfides adsorption and improve the catalytic activity, thereby significantly accelerating the redox conversion kinetics and prevent the dendrite growth. Consequently, Li-S batteries with NCZTC-modified separators demonstrate excellent electrochemical performance including high specific discharge capacity, remarkable rate capability, good long-term cycling stability, and competitive areal capacity even at high sulfur loading and lean electrolyte conditions. This study not only provides valuable guidance for designing efficient sulfur electrocatalysts with transition metal tellurides but also emphasizes the importance of heterostructure design and defect engineering for high-performance Li-S batteries. The high-efficiency N subset of CoTe1-x/ZnTe1-y@NC electrocatalyst is rationally designed for Li-S batteries. Both experimental and theoretical results substantiate that the integration of dense heterointerfaces and rich defects (Te vacancy-induced N-doping) can synergistically accelerate the sulfur conversion and protect the lithium anode from corrosion. This study provides an innovative strategy for constructing high-performance sulfur electrocatalysts with transition metal tellurides. image

Keyword :

bimetallic tellurides bimetallic tellurides defects defects electrocatalysts electrocatalysts heterointerfaces heterointerfaces lithium-sulfur batteries lithium-sulfur batteries

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GB/T 7714 Wu, Xiangpeng , Xie, Rongjun , Cai, Daoping et al. Engineering Defect-Rich Bimetallic Telluride with Dense Heterointerfaces for High-Performance Lithium-Sulfur Batteries [J]. | ADVANCED FUNCTIONAL MATERIALS , 2024 , 34 (26) .
MLA Wu, Xiangpeng et al. "Engineering Defect-Rich Bimetallic Telluride with Dense Heterointerfaces for High-Performance Lithium-Sulfur Batteries" . | ADVANCED FUNCTIONAL MATERIALS 34 . 26 (2024) .
APA Wu, Xiangpeng , Xie, Rongjun , Cai, Daoping , Fei, Ban , Zhang, Chaoqi , Chen, Qidi et al. Engineering Defect-Rich Bimetallic Telluride with Dense Heterointerfaces for High-Performance Lithium-Sulfur Batteries . | ADVANCED FUNCTIONAL MATERIALS , 2024 , 34 (26) .
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Engineering Defect‐Rich Bimetallic Telluride with Dense Heterointerfaces for High‐Performance Lithium–Sulfur Batteries
期刊论文 | 2024 , 34 (26) , n/a-n/a | Advanced Functional Materials
Engineering Defect-Rich Bimetallic Telluride with Dense Heterointerfaces for High-Performance Lithium–Sulfur Batteries EI
期刊论文 | 2024 , 34 (26) | Advanced Functional Materials
Engineering Defect-Rich Bimetallic Telluride with Dense Heterointerfaces for High-Performance Lithium–Sulfur Batteries Scopus
期刊论文 | 2024 , 34 (26) | Advanced Functional Materials
Separator modified by ternary iron molybdenum nitride and nitrogen-doped carbon composite enabling efficient polysulfide conversion for lithium-sulfur batteries SCIE
期刊论文 | 2023 , 967 | JOURNAL OF ALLOYS AND COMPOUNDS
WoS CC Cited Count: 1
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Abstract :

Lithium-sulfur batteries (LSBs) are appealing energy storage systems by virtue of the high theoretical energy density and abundant resources of sulfur. However, the sluggish redox reaction kinetics and shuttle effect of soluble lithium polysulfides (LiPSs) seriously restrict their practical applications. Searching for highly efficient and low cost electrocatalysts towards LiPSs conversion is one of the most promising approaches to relieve the shuttle effect and enhance the sulfur utilization. In this work, we first demonstrate the application of ternary iron molybdenum nitride hybridized with nitrogen-doped carbon, denoted as (Fe0.81Mo0.19)MoN2/NC composite, as an advanced separator modifier to boost the bidirectional catalytic conversion of LiPSs. Impressively, the as-fabricated LSBs with (Fe0.81Mo0.19)MoN2/NC modified separator display an ultrahigh initial discharge capac-ity of 1366.1 mAh g-1 at 0.1 C and still remains a high value of 809.1 mAh g-1 at a high rate of 4 C. Furthermore, a remarkable discharge capacity of 569.2 mAh g-1 is retained when cycling at a high rate of 1 C for 700 cycles (corresponding to a low attenuation rate of 0.065 % per cycle), indicating the good long-term cycling stability. The excellent performance could be attributed to the multiple advantages of high electrical conductivity, numerous active sites, strong adsorption ability and excellent catalytic activity, thereby effectively suppressing the shuttle effect of LiPSs. The present work indicates that the ternary transition metal nitrides could be promising separator modifiers for high-performance LSBs.

Keyword :

Composite Composite Lithium-sulfur batteries Lithium-sulfur batteries Modified separators Modified separators Shuttle effect Shuttle effect Transition metal nitrides Transition metal nitrides

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GB/T 7714 Zhang, Xudong , Zhao, Mincai , Cai, Daoping et al. Separator modified by ternary iron molybdenum nitride and nitrogen-doped carbon composite enabling efficient polysulfide conversion for lithium-sulfur batteries [J]. | JOURNAL OF ALLOYS AND COMPOUNDS , 2023 , 967 .
MLA Zhang, Xudong et al. "Separator modified by ternary iron molybdenum nitride and nitrogen-doped carbon composite enabling efficient polysulfide conversion for lithium-sulfur batteries" . | JOURNAL OF ALLOYS AND COMPOUNDS 967 (2023) .
APA Zhang, Xudong , Zhao, Mincai , Cai, Daoping , Zhang, Chaoqi , Chen, Qidi , Zhan, Hongbing . Separator modified by ternary iron molybdenum nitride and nitrogen-doped carbon composite enabling efficient polysulfide conversion for lithium-sulfur batteries . | JOURNAL OF ALLOYS AND COMPOUNDS , 2023 , 967 .
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Separator modified by ternary iron molybdenum nitride and nitrogen-doped carbon composite enabling efficient polysulfide conversion for lithium-sulfur batteries Scopus
期刊论文 | 2023 , 967 | Journal of Alloys and Compounds
Separator modified by ternary iron molybdenum nitride and nitrogen-doped carbon composite enabling efficient polysulfide conversion for lithium-sulfur batteries EI
期刊论文 | 2023 , 967 | Journal of Alloys and Compounds
Amorphous/crystalline heterostructure design enables highly efficient adsorption-diffusion-conversion of polysulfides for lithium-sulfur batteries SCIE
期刊论文 | 2023 , 11 (34) , 18313-18322 | JOURNAL OF MATERIALS CHEMISTRY A
WoS CC Cited Count: 5
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Abstract :

Electrocatalytic conversion of soluble lithium polysulfides (LiPSs) has been proposed as a crucial approach to address the drawbacks of lithium-sulfur (Li-S) batteries. However, it still remains a great challenge to realize the integration of strong adsorption and high catalytic activity within a single electrocatalyst. Herein, we conceptually demonstrate the rational design and synthesis of a crystalline Bi2Se3 and amorphous BiOx heterostructure (denoted as c-Bi2Se3/a-BiOx) as an advanced separator modifier for Li-S batteries. In such a heterostructure, a-BiOx has strong chemical adsorption ability toward LiPSs and c-Bi2Se3 possesses high catalytic activity for LiPS conversion. Meanwhile, the heterointerface enables rapid diffusion of LiPSs from a-BiOx to c-Bi2Se3, thus synergistically contributing to the highly efficient adsorption-diffusion-conversion process of LiPSs. Benefiting from these advantages, Li-S batteries using a c-Bi2Se3/a-BiOx heterostructure modified separator exhibit excellent electrochemical performance in terms of high discharge capacity (1517.9 mA h g(-1) at 0.1C), outstanding rate capacity (873.1 mA h g(-1) at 4C) and long-term cycling stability with a low capacity decay rate of 0.041% per cycle over 1000 cycles at 1C. Furthermore, a remarkable areal capacity of 3.85 mA h cm(-2) can be achieved at a high sulfur loading of 5.5 mg cm(-2). This work provides valuable insight into the development of crystalline/amorphous heterostructures as robust and highly active electrocatalysts for high-performance Li-S batteries.

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GB/T 7714 Wu, Xiangpeng , Shen, Zewei , Cai, Daoping et al. Amorphous/crystalline heterostructure design enables highly efficient adsorption-diffusion-conversion of polysulfides for lithium-sulfur batteries [J]. | JOURNAL OF MATERIALS CHEMISTRY A , 2023 , 11 (34) : 18313-18322 .
MLA Wu, Xiangpeng et al. "Amorphous/crystalline heterostructure design enables highly efficient adsorption-diffusion-conversion of polysulfides for lithium-sulfur batteries" . | JOURNAL OF MATERIALS CHEMISTRY A 11 . 34 (2023) : 18313-18322 .
APA Wu, Xiangpeng , Shen, Zewei , Cai, Daoping , Fei, Ban , Zhao, Mincai , Fu, Junjie et al. Amorphous/crystalline heterostructure design enables highly efficient adsorption-diffusion-conversion of polysulfides for lithium-sulfur batteries . | JOURNAL OF MATERIALS CHEMISTRY A , 2023 , 11 (34) , 18313-18322 .
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Amorphous/crystalline heterostructure design enables highly efficient adsorption-diffusion-conversion of polysulfides for lithium-sulfur batteries EI
期刊论文 | 2023 , 11 (34) , 18313-18322 | Journal of Materials Chemistry A
Amorphous/crystalline heterostructure design enables highly efficient adsorption-diffusion-conversion of polysulfides for lithium-sulfur batteries Scopus
期刊论文 | 2023 , 11 (34) , 18313-18322 | Journal of Materials Chemistry A
Topological insulator bismuth selenide with a unique cloud-like hollow structure as a bidirectional electrocatalyst for robust lithium-sulfur batteries SCIE
期刊论文 | 2023 , 11 (44) , 24089-24098 | JOURNAL OF MATERIALS CHEMISTRY A
WoS CC Cited Count: 2
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Abstract :

Lithium-sulfur (Li-S) batteries have attracted widespread attention because of their high energy density, low cost and environmentally friendly nature. Unfortunately, the practical applicability of Li-S batteries is seriously restricted by the shuttle effect and sluggish reaction kinetics of soluble lithium polysulfides (LiPSs). Herein, strong topological insulator (TI) Bi2Se3 and weak TI BiSe with unique cloud-like hollow structures have been rationally synthesized and employed as separator modifiers for Li-S batteries. The strong TI Bi2Se3 possesses abundant active sites, high electrical conductivity, strong chemical adsorption, superior catalytic activity and robust surface states, which significantly accelerates the redox conversion kinetics, mitigates the shuttle effect of LiPSs and improves the sulfur utilization. Consequently, Li-S batteries with strong TI Bi2Se3 modified separators demonstrate impressive practical prospects in terms of high discharge capacity (1568.8 mA h g-1 at 0.1C), remarkable rate capability (866.3 mA h g-1 at 5.0C) and a stable capacity of 524.3 mA h g-1 over 500 cycles at 1C (corresponding to a capacity decay rate of 0.086%). The performance enhancements are further supported by theoretical calculations. This work might provide valuable insights into the delicate design and synthesis of TI materials with desired morphology and structure to boost their performance for energy storage. Topological insulator Bi2Se3 with a unique cloud-like hollow structure was synthesized and employed as a separator modifier for lithium-sulfur batteries, which can significantly accelerate sulfur conversion kinetics and mitigate the shuttle effect.

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GB/T 7714 Zhao, Mincai , Fu, Junjie , Cai, Daoping et al. Topological insulator bismuth selenide with a unique cloud-like hollow structure as a bidirectional electrocatalyst for robust lithium-sulfur batteries [J]. | JOURNAL OF MATERIALS CHEMISTRY A , 2023 , 11 (44) : 24089-24098 .
MLA Zhao, Mincai et al. "Topological insulator bismuth selenide with a unique cloud-like hollow structure as a bidirectional electrocatalyst for robust lithium-sulfur batteries" . | JOURNAL OF MATERIALS CHEMISTRY A 11 . 44 (2023) : 24089-24098 .
APA Zhao, Mincai , Fu, Junjie , Cai, Daoping , Zhang, Chaoqi , Fei, Ban , Zhang, Yinggan et al. Topological insulator bismuth selenide with a unique cloud-like hollow structure as a bidirectional electrocatalyst for robust lithium-sulfur batteries . | JOURNAL OF MATERIALS CHEMISTRY A , 2023 , 11 (44) , 24089-24098 .
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Topological insulator bismuth selenide with a unique cloud-like hollow structure as a bidirectional electrocatalyst for robust lithium-sulfur batteries EI
期刊论文 | 2023 , 11 (44) , 24089-24098 | Journal of Materials Chemistry A
Topological insulator bismuth selenide with a unique cloud-like hollow structure as a bidirectional electrocatalyst for robust lithium-sulfur batteries Scopus
期刊论文 | 2023 , 11 (44) , 24089-24098 | Journal of Materials Chemistry A
In Situ Induced Core-Shell Carbon-Encapsulated Amorphous Vanadium Oxide for Ultra-Long Cycle Life Aqueous Zinc-Ion Batteries SCIE
期刊论文 | 2023 , 33 (32) | ADVANCED FUNCTIONAL MATERIALS
WoS CC Cited Count: 33
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Abstract :

Inevitable dissolution in aqueous electrolytes, intrinsically low electrical conductivity, and sluggish reaction kinetics have significantly hampered the zinc storage performance of vanadium oxide-based cathode materials. Herein, core-shell N-doped carbon-encapsulated amorphous vanadium oxide arrays, prepared via a one-step nitridation process followed by in situ electrochemical induction, as a highly stable and efficient cathode material for aqueous zinc-ion batteries (AZIBs) are reported. In this design, the amorphous vanadium oxide core provides unobstructed ions diffusion routes and abundant active sites, while the N-doped carbon shell can ensure efficient electron transfer and greatly stabilize the vanadium oxide core. The assembled AZIBs exhibit remarkable discharge capacity (0.92 mAh cm(-2) at 0.5 mA cm(-2)), superior rate capability (0.51 mAh cm(-2) at 20 mA cm(-2)), and ultra-long cycling stability (approximate to 100% capacity retention after 500 cycles at 0.5 mA cm(-2) and 97% capacity retention after 10 000 cycles at 20 mA cm(-2)). The working mechanism is further validated by in situ X-ray diffraction combined with ex situ tests. Moreover, the fabricated cathode is highly flexible, and the assembled quasi-solid-state AZIBs present stable electrochemical performance under large deformations. This work offers insights into the development of high-performance amorphous vanadium oxide-based cathodes for AZIBs.

Keyword :

amorphous vanadium oxide amorphous vanadium oxide cathodes cathodes core-shell structure core-shell structure electrochemical induction electrochemical induction zinc-ion batteries zinc-ion batteries

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GB/T 7714 Fei, Ban , Liu, Zhihang , Fu, Junjie et al. In Situ Induced Core-Shell Carbon-Encapsulated Amorphous Vanadium Oxide for Ultra-Long Cycle Life Aqueous Zinc-Ion Batteries [J]. | ADVANCED FUNCTIONAL MATERIALS , 2023 , 33 (32) .
MLA Fei, Ban et al. "In Situ Induced Core-Shell Carbon-Encapsulated Amorphous Vanadium Oxide for Ultra-Long Cycle Life Aqueous Zinc-Ion Batteries" . | ADVANCED FUNCTIONAL MATERIALS 33 . 32 (2023) .
APA Fei, Ban , Liu, Zhihang , Fu, Junjie , Guo, Xuyun , Li, Ke , Zhang, Chaoqi et al. In Situ Induced Core-Shell Carbon-Encapsulated Amorphous Vanadium Oxide for Ultra-Long Cycle Life Aqueous Zinc-Ion Batteries . | ADVANCED FUNCTIONAL MATERIALS , 2023 , 33 (32) .
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In Situ Induced Core–Shell Carbon-Encapsulated Amorphous Vanadium Oxide for Ultra-Long Cycle Life Aqueous Zinc-Ion Batteries EI
期刊论文 | 2023 , 33 (32) | Advanced Functional Materials
In Situ Induced Core–Shell Carbon-Encapsulated Amorphous Vanadium Oxide for Ultra-Long Cycle Life Aqueous Zinc-Ion Batteries Scopus
期刊论文 | 2023 , 33 (32) | Advanced Functional Materials
一种锂硫电池正极材料及其制备方法和应用 incoPat
专利 | 2022-01-24 00:00:00 | CN202210078802.9
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Abstract :

本发明公开了一种锂硫电池正极材料及其制备方法和应用,属于锂硫电池电极材料的制备领域;其中锂硫电池正极材料包括VN@Co3ZnC@NCNTs复合材料和硫,VN@Co3ZnC@NCNTs复合材料包括VN、Co3ZnC和氮掺杂碳纳米管;采用本发明的锂硫电池正极材料制备的锂硫电池,其电池的电化学性能均得到明显提高,且该锂硫电池正极材料的制备简单,电池组装工艺简便,可以降低成本。

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GB/T 7714 蔡道平 , 王亚光 , 廖茹忻 et al. 一种锂硫电池正极材料及其制备方法和应用 : CN202210078802.9[P]. | 2022-01-24 00:00:00 .
MLA 蔡道平 et al. "一种锂硫电池正极材料及其制备方法和应用" : CN202210078802.9. | 2022-01-24 00:00:00 .
APA 蔡道平 , 王亚光 , 廖茹忻 , 傅俊杰 . 一种锂硫电池正极材料及其制备方法和应用 : CN202210078802.9. | 2022-01-24 00:00:00 .
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