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Article
Chemistry, Physical
Baolei Shen et al.
Summary: By proper structural design and material optimization, a cactus-like NiCo2O4@NPF nano-flower flexible supercapacitor electrode was successfully assembled. The unique nano-flower structure enhances the transport of electrons and ions and improves the reaction kinetics at the interface between electrolyte and active materials. The electrode exhibits outstanding energy storage performance, excellent rate capability, and favorable cyclability.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Zhengqing Ye et al.
Summary: In this study, a strategy to improve the performance of lithium-sulfur batteries is proposed by introducing sulfur vacancies and dense heterointerfaces. The results show that sulfur vacancies and build-in interfacial field facilitate electron transfer and regulate the electronic structure, while the well-designed 3D nanosheet array structures shorten ion transport pathways and inhibit volume fluctuation, promoting sulfur conversion reactions.
ADVANCED MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Anki Reddy Mule et al.
Summary: This study demonstrates the facile and cost-effective fabrication of nickel-cobalt-copper-sulfides/selenides hollow nanocubes with improved surface morphology and addition of sulfur and selenium ions. The prepared materials exhibit high charge storage performance, superior cycling stability, and good rate capability, making them suitable for high-performance energy storage devices. Furthermore, the materials show potential as positive electrodes in aqueous electrochemical hybrid capacitors with excellent energy and power densities.
Article
Chemistry, Multidisciplinary
Jiawei Zhang et al.
Summary: The new nickel sulfide material Ni3S4-x HMs, with deliberately introduced sulfur vacancies, has significantly enhanced the anionic adsorptive ability in KOH electrolyte, leading to improved reversible capacitance and structural durability. The asymmetrical solid-state supercapacitor based on this material demonstrates high energy/power density and excellent cycling stability, offering new strategies for the design of electrochemical energy storage devices in the future.
Article
Chemistry, Multidisciplinary
Shude Liu et al.
Summary: By introducing sulfur vacancies into CuCo2S4, the study accelerates redox reactivity, improves electrochemical performance, and achieves high specific capacity and superior rate capability.
Article
Engineering, Environmental
Qianqian Li et al.
Summary: In this study, vertically oriented Co9S8@MnO2 core-shell heterostructure nanotube arrays were grown on a carbon cloth surface via a fast NaBH4 reduction method. By introducing oxygen vacancy, the conductivity and reaction kinetics were effectively improved, resulting in enhanced capacitance performance. The prepared electrode material showed high performance in assembling flexible supercapacitors and Zn-ion hybrid supercapacitors.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Materials Science, Multidisciplinary
Wenxiu He et al.
Summary: A new strategy for fabricating MgCo2O4@Ni3S2 heterostructure array by hydrothermal and calcination technique is reported. The composite electrode exhibits a porous structure, allowing for fast ion/electron transfer and maximized use of active material, resulting in high specific capacitance and capacitance retention. The MgCo2O4@Ni3S2 composite shows promising performance as the positive electrode in an asymmetric supercapacitor, with high energy density and capacity retention.
Article
Chemistry, Physical
Jing Chen et al.
Summary: A novel catalysis strategy was reported to construct nanometer-thick microporous carbon/few-layer graphene heterostructure, which showed high special capacitance and excellent rate performance. The mechanism behind these phenomena was studied.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Applied
Yan Lin et al.
Summary: In this study, NiCoP/S nanocrystals were synthesized using a novel method and exhibited excellent hydrogen evolution reaction (HER) and supercapacitor performance in a wide pH range. The findings provide new insights into the modulation of electronic structure and lattice strain for electrocatalytic and energy storage applications.
JOURNAL OF ENERGY CHEMISTRY
(2022)
Article
Chemistry, Physical
Zhigao Xue et al.
Summary: In this study, 1D V2O5 nanowires were used as a flexible backbone to string MOF-derived hollow Co3S4 3D nanopolyhedra, resulting in the formation of robust core-shell 1D@3D V2O5@Co3S4 nanocomposites. The optimal nanocomposite displayed enhanced electrochemical properties and cycle durability, making it a promising material for supercapacitors and electrocatalysis.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Physical
Shuai Zhang et al.
Summary: With the popularity of intelligent portable electronic devices, flexible supercapacitors have attracted extensive attention as a potential energy storage device. In this study, researchers successfully prepared flexible self-supporting electrodes and improved their capacitance performance by constructing Ti3C2Tx/g-C3N4 heterostructure films. The assembled flexible all-solid symmetric supercapacitor not only achieved high energy density, but also maintained stable performance under 180 degrees bending conditions.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Physical
Yuxin Shi et al.
Summary: This review summarizes the recent progress in the synthesis, composition, structure, and reaction mechanisms of MOF-derived metal sulfides for batteries, supercapacitors, and electrocatalysis, highlighting their potential in improving catalytic activity and energy storage. The challenges and opportunities for future development in this field are also discussed, aiming to inspire the synthesis of more efficient and durable electrochemical energy storage and conversion systems.
ENERGY STORAGE MATERIALS
(2022)
Article
Chemistry, Physical
Du Huang et al.
Summary: In this study, NiCo2O4 nanoflowers with high specific surface area were prepared on nickel foam and used as cathode and anode for a flexible asymmetric supercapacitor. The hierarchical structured electrodes provided sufficient redox sites and channels for ion and electron transport. Furthermore, the performance of NiCo2S4/PPy as an anode was investigated for the first time, showing good cycling stability and specific capacitance.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Physical
Yingdong Wu et al.
Summary: Effective control over the manufacturing process of Ov-Co3O4@PPy, which consists of Co3O4 with rich oxygen vacancy defects and polypyrrole coating, enhances the capacitive and cyclic properties of the material. The specific capacitance of Ov-Co3O4@PPy is three times higher than that of Co3O4 without reduction treatment and unwrapped PPy. Moreover, the Ov-Co3O4@PPy//AC asymmetric supercapacitor exhibits a high specific energy density of 74.55 Wh kg(-1) and a capacitance retention rate close to 110% after 10,000 cycles.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Inorganic & Nuclear
Jinhe Wei et al.
Summary: Researchers have developed a binderless NiCo2O4 electrode with a 2D ultrathin nanosheet architecture and rich oxygen vacancies, which shows excellent electrochemical performance in hybrid supercapacitors and Zn-ion batteries. The electrode delivers remarkable specific capacity, favorable rate capability, and outstanding cycling performance.
INORGANIC CHEMISTRY FRONTIERS
(2022)
Article
Chemistry, Multidisciplinary
Chengchao Wang et al.
Summary: Reduced Mo-doped NiCo2O4 prepared through a dual-defect strategy exhibits enhanced electrical conductivity and facilitated charge transfer. As an electrode material in supercapacitors, it shows higher specific capacity, rate capability, and cycling stability.
CHEMICAL COMMUNICATIONS
(2022)
Article
Materials Science, Ceramics
Han Zhu et al.
Summary: The study presents a simple and extensible method for preparing N-doped carbon-coated NiS core-shell composites at different temperatures and discusses the impact of pyrolysis temperature on the composites. The core-shell structure, along with the carbon layer, contributes to enhancing the electrochemical stability of NiS and adapting to volume changes during charge-discharge cycles. The NiS@NC-300 composite exhibits significantly improved specific capacity and cycle stability, making it a promising candidate for practical energy storage devices.
CERAMICS INTERNATIONAL
(2021)
Article
Engineering, Environmental
Zhiguo Zhang et al.
Summary: The study proposed a strategy to improve the cycling performance of Mn-doped NiMn-LDH by controlling the Mn doping level and occupied site, effectively modulating the electronic configuration and layer stacking mode to stabilize the structure. This resulted in high capacity, excellent rate capability, and superior cycling performance, demonstrating the potential for modulation of local environment to enhance the cycling performance of nickel-based electrode materials for energy storage and conversion applications.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Engineering, Environmental
Kun Xiang et al.
Summary: The study successfully constructed two-dimensional ZnCo2O4 nanosheets with abundant oxygen vacancies, which exhibit outstanding performance in areas such as supercapacitors and electrocatalytic water oxidation.
CHEMICAL ENGINEERING JOURNAL
(2021)
Review
Chemistry, Inorganic & Nuclear
Yingge Zhang et al.
Summary: Defect engineering is an efficient approach for modulating the properties of materials for energy-related applications, with metal sulfides (MSs) attracting increasing research interest due to their tunable electronic structure and outstanding redox reversibility. Introducing different types of defects into MSs can lead to highly-efficient materials for various energy conversion and storage applications. However, comprehensive reviews about the applications of defective MSs are rare, highlighting the need for further research in this area.
COORDINATION CHEMISTRY REVIEWS
(2021)
Article
Engineering, Environmental
Peng Cui et al.
Summary: This study demonstrated a versatile recipe combining H-plasma and O-plasma to achieve robust lattice oxygen vacancies in birnessite-MnO2, aiming to enhance its electrochemical energy storage performance. Theoretical calculations revealed facilitated ion intercalation and diffusion kinetics in LOV-MnO2 due to lower energy barriers, leading to exceptional electrochemical performance. Such defect engineering recipes have shown great potential for the development of advanced electrode materials for electrochemical energy storage devices.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Physical
Shenna Fu et al.
Summary: This study synthesized Sn-doped Ni3S2 (SNS) electrode material with a popcorn shaped morphology through a simple two-step hydrothermal reaction. The SNS exhibited excellent electrochemical performance and could potentially meet the ever-growing demand for energy storage.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
Jinfeng Zheng et al.
Summary: In this study, Ni3S4 quantum dots composite graphene/carbon nanotube composites were prepared using a one-step method. The addition of G/CNTs improved electron transport and enhanced the electrochemical performance of the electrode material significantly, increasing specific capacitance and rate capability. The asymmetric supercapacitor assembled with Ni3S4 QDs@G/CNTs electrodes achieved an energy density of 50 Wh kg(-1), showing great potential for improving the electrochemical performance of supercapacitor electrode materials.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Nanoscience & Nanotechnology
Subin Jiang et al.
Summary: An integrated BatCap electrode Mn-Ni LDO-C with excellent electrochemical performance was successfully synthesized in this study, showing promising application prospects in the field of energy storage.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Multidisciplinary
Chun-Chao Hou et al.
Summary: Carbon micro/nanocages fabricated using a solid-state gas-steamed metal-organic-framework approach exhibit large openings on walls for enhanced kinetics of mass transport. The carbon cathodes show high operation voltage and ultralong cycling lifespan, resulting in high energy density and superb power density.
ADVANCED MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Mutian Hua et al.
Summary: This study successfully fabricated a thick capacitor electrode by compositing a superficial layer of tough hydrogel on conductive and low tortuous foams, achieving large capacitance, high power density, and good mechanical robustness. The tough hydrogel plays a key role in maintaining structural integrity and promoting interaction between the conductive electrode and electrolyte.
ADVANCED MATERIALS
(2021)
Article
Engineering, Environmental
Anqi Zhang et al.
Summary: The successful introduction of rich bulk oxygen vacancies in MnO2 enhances electrical conductivity, promotes charge transfer, and significantly improves capacitance and rate capability. The asymmetric supercapacitor of MnO2 with rich bulk oxygen vacancies exhibits higher energy density and power density compared to most reported MnO2-based supercapacitors.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Physical
Xu Zhang et al.
Summary: An innovative MXene-induced strategy was reported to synthesize Ti3C2Tx/Ni-MOFs for high-performance supercapacitors, showing promising electrochemical performance with improved conductivity and additional electric double layer capacitance. The synergistic effects of 2D MXenes and Ni-MOFs contribute to the rich activity sites for redox reactions and shortened ion transport path, leading to enhanced rate capability and high energy density in supercapacitor applications.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Feng Wang et al.
Summary: This study reported a porous monolithic electrode with high thickness, assembled hierarchically to improve capacitance performance and cycling stability. The electrode maintained 84.5% long-term stability over 10,000 cycles, exhibited exceptional rate capability, and significantly increased energy density.
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Yanqun Tang et al.
ADVANCED FUNCTIONAL MATERIALS
(2020)
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ACS APPLIED ENERGY MATERIALS
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CHEMICAL ENGINEERING JOURNAL
(2018)
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(2018)
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