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学者姓名:丁书江
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Abstract :
Pyrite FeS2 now emerges as a promising anode for potassium-ion batteries (PIBs) due to its low cost and high theoretical capacity. However, the significant volume expansion, low electrical conductivity, and the ambiguous mechanism related to potassium storage severely hinder its development for PIBs anodes. Herein, FeS2 nanostructures are skillfully dispersed on the graphene surface layer by layer (FeS2@C-rGO) to form a sandwich structure by using Fe-based metal organic framework (Fe-MOF) as precursors. The unique structural design can improve the transfer kinetics of K+ and effectively buffer the volume expansion during cycling, thereby enhancing the potassium storage performance. As a result, the FeS2@C-rGO delivers a high capacity of 550 mAh/g at a current density of 0.1 A/g. At a high rate of 2 A/g, the capacity can maintain 171 mAh/g even after 500 cycles. Moreover, the electrochemical reaction mechanism and potassium storage behavior are revealed by in-situ X-ray diffractionand density functional theory calculations. This work not only provides a novel insight into the structural design of electrode materials for high-performance PIBs, but also proposes a valuable understanding of the potassium storage mechanism of the FeS2-based anode.(c) 2023 Elsevier Inc. All rights reserved.
Keyword :
Anode material High-rate In-situ X-ray diffraction Potassium-ion batteries
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GB/T 7714 | Zhou, Xinyu , Wang, Ziwei , Wang, Yajun et al. Graphene supported FeS2 nanoparticles with sandwich structure as a promising anode for High-Rate Potassium-Ion batteries [J]. | JOURNAL OF COLLOID AND INTERFACE SCIENCE , 2023 , 636 : 73-82 . |
MLA | Zhou, Xinyu et al. "Graphene supported FeS2 nanoparticles with sandwich structure as a promising anode for High-Rate Potassium-Ion batteries" . | JOURNAL OF COLLOID AND INTERFACE SCIENCE 636 (2023) : 73-82 . |
APA | Zhou, Xinyu , Wang, Ziwei , Wang, Yajun , Du, Fan , Li, Yinhuan , Su, Yaqiong et al. Graphene supported FeS2 nanoparticles with sandwich structure as a promising anode for High-Rate Potassium-Ion batteries . | JOURNAL OF COLLOID AND INTERFACE SCIENCE , 2023 , 636 , 73-82 . |
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Abstract :
The increasing electromagnetic (EM) pollution that has seriously threatened human health and electronic devices urgently required high-performance absorbents toward attenuating EM wave (EMW). The com-bination of microstructure modulation and appropriate components regulation has proven to be a feasi-ble strategy for improving the EMW absorption performance of absorbents. In this work, well-designed one-dimensional carbon nanofibers with macroporous structures and uniformly magnetic metal nanoparticles modification were prepared by the hard-template assisted electrospinning method fol-lowed by carbonization and template-elimination processes. The strong interfacial polarization loss and multireflection strengthened by the hollow structures and the magnetic loss induced by the intro-duced cobalt nanoparticles evidently enhanced the impedance matching level of the macroporous carbon nanofibers/cobalt nanoparticles (MCF/Co). As a result, MCF/Co composite offers broad absorption band-width (6.24 GHz) and strong electromagnetic wave absorption performance (-40.1 dB) at a thickness of 3.0 mm. This work inspires the rational one-dimensional macroporous carbon nanofibers design for new-generation EMW materials and provides an important research basis for the porous flexible EMW absorption materials.(c) 2023 Elsevier Inc. All rights reserved.
Keyword :
Co nanoparticles Electromagnetic wave absorption Interfacial polarization loss Macroporous structures Nanofibers
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GB/T 7714 | Yang, Guorui , Wen, Bo , Zhou, Ziyi et al. Flexible cobalt nanoparticles/carbon nanofibers with macroporous structures toward superior electromagnetic wave absorption [J]. | JOURNAL OF COLLOID AND INTERFACE SCIENCE , 2023 , 636 : 194-203 . |
MLA | Yang, Guorui et al. "Flexible cobalt nanoparticles/carbon nanofibers with macroporous structures toward superior electromagnetic wave absorption" . | JOURNAL OF COLLOID AND INTERFACE SCIENCE 636 (2023) : 194-203 . |
APA | Yang, Guorui , Wen, Bo , Zhou, Ziyi , Wang, Silan , Zhao, Hongyang , Ding, Shujiang et al. Flexible cobalt nanoparticles/carbon nanofibers with macroporous structures toward superior electromagnetic wave absorption . | JOURNAL OF COLLOID AND INTERFACE SCIENCE , 2023 , 636 , 194-203 . |
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Abstract :
Sodium-ion batteries (SIBs) are expected to replace lithium-ion batteries in the energy storage sector owing to their low cost and abundant resources. However, developing suitable anode materials to meet the high energy density requirements of SIBs remains an ongoing challenge. Herein, we design a hollow nitrogen-doped bowl-like carbon decorated with Co9S8 nanoparticles linked by carbon nanotubes (HNBC@Co9S8@CNTs) as an anode material for SIBs. The HNBC@Co9S8@CNTs electrode exhibits impressive rate performance (449.3 mAh g-1 at 5 A g-1) and cycling stability (426.5 mAh g-1 after 500 cycles at high current density of 1 A g-1) due to the advantages of highly conductive three-dimensional (3D) interconnected structures. In addition, its pseudo - capacitance and sodium storage diffusion kinetics are analyzed in depth using Cyclic Voltammetry (CV) and galvanostatic intermittent titration technique (GITT). The results elucidate that the partially surface-induced capacitive sodium storage, highly conductive 3D interconnected structures, and fast reaction kinetics synergis- tically contribute to the high-rate performance. This work may provide new insights for the fabrication of various metal sulfide or sulfide composites with high sodium storage capacity.
Keyword :
Anode material Cobalt sulfide Sodium ion battery Three-dimensional structure
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GB/T 7714 | Yang, Guorui , Zhou, Ziyi , Liu, Xiaofeng et al. Bowl-shaped carbon loaded Co9S8 nanoparticles connected by carbon nanotubes with excellent rate performance for sodium-ion batteries [J]. | ELECTROCHIMICA ACTA , 2023 , 441 . |
MLA | Yang, Guorui et al. "Bowl-shaped carbon loaded Co9S8 nanoparticles connected by carbon nanotubes with excellent rate performance for sodium-ion batteries" . | ELECTROCHIMICA ACTA 441 (2023) . |
APA | Yang, Guorui , Zhou, Ziyi , Liu, Xiaofeng , Zhang, Yue , Wang, Silan , Yan, Wei et al. Bowl-shaped carbon loaded Co9S8 nanoparticles connected by carbon nanotubes with excellent rate performance for sodium-ion batteries . | ELECTROCHIMICA ACTA , 2023 , 441 . |
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Abstract :
It is of great significance to develop clean and new energy sources with high-efficient energy storage technologies, due to the excessive use of fossil energy that has caused severe environmental damage. There is great interest in exploring advanced rechargeable lithium batteries with desirable energy and power capabilities for applications in portable electronics, smart grids, and electric vehicles. In practice, high-capacity and low-cost electrode materials play an important role in sustaining the progresses in lithium-ion batteries. This review aims at giving an account of recent advances on the emerging high-capacity electrode materials and summarizing key barriers and corresponding strategies for the practical viability of these electrode materials. Effective approaches to enhance energy density of lithium-ion batteries are to increase the capacity of electrode materials and the output operation voltage. On account of major bottlenecks of the power lithium-ion battery, authors come up with the concept of integrated battery systems, which will be a promising future for high-energy lithium-ion batteries to improve energy density and alleviate anxiety of electric vehicles.
Keyword :
high-capacity electrode materials high-energy lithium-ion batteries high-voltage cathodes integrated battery systems organic cathode materials
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GB/T 7714 | Xu, Jingjing , Cai, Xingyun , Cai, Songming et al. High-Energy Lithium-Ion Batteries: Recent Progress and a Promising Future in Applications [J]. | ENERGY & ENVIRONMENTAL MATERIALS , 2023 . |
MLA | Xu, Jingjing et al. "High-Energy Lithium-Ion Batteries: Recent Progress and a Promising Future in Applications" . | ENERGY & ENVIRONMENTAL MATERIALS (2023) . |
APA | Xu, Jingjing , Cai, Xingyun , Cai, Songming , Shao, Yaxin , Hu, Chao , Lu, Shirong et al. High-Energy Lithium-Ion Batteries: Recent Progress and a Promising Future in Applications . | ENERGY & ENVIRONMENTAL MATERIALS , 2023 . |
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Abstract :
Hollow materials are emerging as functional materials with unique characteristics in tunable cavity,high specific active surface area and enhanced mass transfer. Janus hollow materials are readily derived upon spatial compartmentalization of multiple components thus functions. Template synthesis is highly efficient to synthesize the hollow materials with tunable microstructure and composition. In the first part of this review,recent advances in the template synthesis of the representative hollow materials are concisely summarized. In the second part,typical applications of the hollow materials in catalysis, energy storage, oil/water separation and drug delivery are introduced. This review will end with a perspective to call for more efforts in the development of new methods toward high performance hollow materials with tailored properties.
Keyword :
Catalysis Drug delivery Hollow material Janus Oil Template synthesis water separation
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GB/T 7714 | Jiye, Yang , Dayin, Sun , Yan, Wang et al. Progresses in Template Synthesis and Applications of Hollow Materials [J]. | CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE , 2023 , 44 (1) . |
MLA | Jiye, Yang et al. "Progresses in Template Synthesis and Applications of Hollow Materials" . | CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE 44 . 1 (2023) . |
APA | Jiye, Yang , Dayin, Sun , Yan, Wang , Anqi, Gu , Yilan, Ye , Shujiang, Ding et al. Progresses in Template Synthesis and Applications of Hollow Materials . | CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE , 2023 , 44 (1) . |
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Abstract :
This paper reports the synthesis of multi-layer SiO2@Au@SiO2@QDs nanoparticles with a dual-functionality of simultaneous heating and temperature sensing and their applications to in vitro chemo-thermal therapy. The heating is activated by a NIR-light through resonance excitation of surface plasma while in-situ thermal sensing is accomplished by the QDs photoluminescent (PL) effect. These dual function nanoparticles are used as a drug carrier for in vitro chemotherapy-photothermal co-treatment for malignant cells. A comparative study of drug release profiles was performed with and without 808 nm laser irradiation. The drug release rate was accelerated by a rise of temperature, which is induced by plasmonic heat generation associated with Au nanoshells; while the temperature change is monitored by the QD nanoparticles at the same time. The results showed that SiO2@Au@SiO2@QDs-DOX platform enabled the combination of local specific chemotherapy with external near-infrared (NIR) photothermal therapy and significantly improved the efficacy of cancer treatment. This combined treatment demonstrated synergistic chemotherapeutic-thermal effects compared to chemotherapy or photothermal therapy alone, resulting in higher efficacy.
Keyword :
Biological and Medicinal Chemistry Biosensors Cancer Cell adhesion Photothermal therapy
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GB/T 7714 | Jiang, Xinbing , Qiao, Lu , Yang, Huan et al. NIR-triggered Synergetic Photothermal and Chemotherapy Cancer Treatment Based on SiO2@Au@SiO2@QDs-DOX Composite Structural Particles [J]. | CHEMNANOMAT , 2023 . |
MLA | Jiang, Xinbing et al. "NIR-triggered Synergetic Photothermal and Chemotherapy Cancer Treatment Based on SiO2@Au@SiO2@QDs-DOX Composite Structural Particles" . | CHEMNANOMAT (2023) . |
APA | Jiang, Xinbing , Qiao, Lu , Yang, Huan , Li, Ben Q. , Ding, Shujiang . NIR-triggered Synergetic Photothermal and Chemotherapy Cancer Treatment Based on SiO2@Au@SiO2@QDs-DOX Composite Structural Particles . | CHEMNANOMAT , 2023 . |
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Abstract :
Cyanide bridged frameworks are excellent pre-catalysts towards oxygen evolution reaction. Control the hydrolysis product is crucial for design of highly active catalyst. Herein, we introduced pyrazine molecules pillared Hofmann-type metal organic framework electrocatalysts. The in-situ formed amorphous hydroxide provided high electrocatalytic activity and the interplanar pyrazine molecule offered structural stability towards alkaline environment, which effectively boosted the OER catalytic activity by offering more accessible active sites. The enhanced structural stability was justified by Raman spectroscopy. The overpotential, Tafel slope, and turn over frequency of the as-synthesized Hofmann-type MOF reached 306 mV, 15.6 mV dec(-1) and 0.12 s(-1), which is significantly better than that of Prussian blue analogue. This work justified the effectiveness of the ligand stabilization strategy in boosting the activity in OER catalysts.
Keyword :
Hydrolysis Metal-Organic Framework Oxygen Evolution Reaction Pre-catalyst Prussian Blue Analogue
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GB/T 7714 | Zhao, Hongyang , Yin, M. S. Dandan , Ali, Wajid et al. Ligand Stabilization Strategy Boosted Electrode Kinetics in Cyanide Metal Organic Framework for Electrocatalytic Oxygen Evolution Reaction [J]. | CHEMNANOMAT , 2022 , 8 (7) . |
MLA | Zhao, Hongyang et al. "Ligand Stabilization Strategy Boosted Electrode Kinetics in Cyanide Metal Organic Framework for Electrocatalytic Oxygen Evolution Reaction" . | CHEMNANOMAT 8 . 7 (2022) . |
APA | Zhao, Hongyang , Yin, M. S. Dandan , Ali, Wajid , Khan, B. S. Nawab Ali , Li, M. S. Ping , Fan, B. S. Xuezhen et al. Ligand Stabilization Strategy Boosted Electrode Kinetics in Cyanide Metal Organic Framework for Electrocatalytic Oxygen Evolution Reaction . | CHEMNANOMAT , 2022 , 8 (7) . |
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Abstract :
The energy content of secondary batteries is often limited by the charge carriers available in the system. Here, the authors employed an anion acceptor cathode for simultaneous use of electrolyte anions and cations as effective charge carriers in solid polymer electrolytes for lithium-based batteries. Ionic-conductive polymers are appealing electrolyte materials for solid-state lithium-based batteries. However, these polymers are detrimentally affected by the electrochemically-inactive anion migration that limits the ionic conductivity and accelerates cell failure. To circumvent this issue, we propose the use of polyvinyl ferrocene (PVF) as positive electrode active material. The PVF acts as an anion-acceptor during redox processes, thus simultaneously setting anions and lithium ions as effective charge carriers. We report the testing of various Li||PVF lab-scale cells using polyethylene oxide (PEO) matrix and Li-containing salts with different anions. Interestingly, the cells using the PEO-lithium bis(trifluoromethanesulfonyl)imide (LiTFSI) solid electrolyte deliver an initial capacity of 108 mAh g(-1) at 100 mu A cm(-2) and 60 degrees C, and a discharge capacity retention of 70% (i.e., 70 mAh g(-1)) after 2800 cycles at 300 mu A cm(-2) and 60 degrees C. The Li|PEO-LiTFSI|PVF cells tested at 50 mu A cm(-2) and 30 degrees C can also deliver an initial discharge capacity of around 98 mAh g(-1) with an electrolyte ionic conductivity in the order of 10(-5 )S cm(-1).
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GB/T 7714 | Sun, Zongjie , Xi, Kai , Chen, Jing et al. Expanding the active charge carriers of polymer electrolytes in lithium-based batteries using an anion-hosting cathode [J]. | NATURE COMMUNICATIONS , 2022 , 13 (1) . |
MLA | Sun, Zongjie et al. "Expanding the active charge carriers of polymer electrolytes in lithium-based batteries using an anion-hosting cathode" . | NATURE COMMUNICATIONS 13 . 1 (2022) . |
APA | Sun, Zongjie , Xi, Kai , Chen, Jing , Abdelkader, Amor , Li, Meng-Yang , Qin, Yuanyuan et al. Expanding the active charge carriers of polymer electrolytes in lithium-based batteries using an anion-hosting cathode . | NATURE COMMUNICATIONS , 2022 , 13 (1) . |
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Abstract :
Gel-based ionic conductors are promising candidates for flexible electronics, serving as stretchable sensors or electrodes. However, most of them suffer from a short operating life, low conductivity and rely on an external power supply, limiting their practical application. Herein, we report a stable organogel ionic conductor with high conductivity and self-powering ability. Briefly, lithium trifluoromethanesulfonate, as a conductive salt, provides high conductivity and the poly(1,1difluoroethylene) layers, as a self-powering system, supply stable energy output under the influence of pressure. Moreover, the proposed conductors withstand long-term and multi-cycle durability tests. The prepared auxiliary training device can withstand the impact of a basketball and detect the impact force, showing potential in passive sensing during practical applications.
Keyword :
organogel pressure sensing self-powered stable
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GB/T 7714 | Wang, Li , Wang, Zhengduo , Li, Yingtao et al. An Ionically Conductive, Self-Powered and Stable Organogel for Pressure Sensing [J]. | NANOMATERIALS , 2022 , 12 (4) . |
MLA | Wang, Li et al. "An Ionically Conductive, Self-Powered and Stable Organogel for Pressure Sensing" . | NANOMATERIALS 12 . 4 (2022) . |
APA | Wang, Li , Wang, Zhengduo , Li, Yingtao , Luo, Yu , Lu, Bingheng , Gao, Yiyang et al. An Ionically Conductive, Self-Powered and Stable Organogel for Pressure Sensing . | NANOMATERIALS , 2022 , 12 (4) . |
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Abstract :
The photoelastic effect has many uses in mechanics today, but it is usually disregarded in flexible materials. Using 2-phenoxyethyl acrylate as a monomer and 4-cyano-4'-pentylbiphenyl (5CB) as a solvent, a multiple responsive photoelastic organogel (PO) with strong birefringence but low modulus is created. 5CB is a liquid crystal molecule that does not participate in the polymerization process and is always present as tiny molecules in the polymer. It endows the PO low modulus and high birefringence, as well as the ability to drive the birefringence using an electric field. This PO not only has high sensitivity and fast response as a photoelastic strain sensor, but also has a very sensitive response to heat, especially in the range of human body temperature. It also has a high dielectric constant and a strong correlation between the interference color and the applied electric field, allowing for easy writing and erasure of encrypted data. This unique multisignal response feature and low modulus that mimics human skin bring up new opportunities in the potential applications such as multiple information encryption, anticounterfeiting, and multifunctional wearable sensors.
Keyword :
interference color multiple stimuli-responsive photoelastic organogels
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GB/T 7714 | Gao, Yiyang , Sun, Danqi , Chen, Jing et al. Photoelastic Organogel with Multiple Stimuli Responses [J]. | SMALL , 2022 , 18 (40) . |
MLA | Gao, Yiyang et al. "Photoelastic Organogel with Multiple Stimuli Responses" . | SMALL 18 . 40 (2022) . |
APA | Gao, Yiyang , Sun, Danqi , Chen, Jing , Xi, Kai , Da, Xinyu , Guo, Haoyu et al. Photoelastic Organogel with Multiple Stimuli Responses . | SMALL , 2022 , 18 (40) . |
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