Progress and Prospects of Transition Metal Sulfides for Sodium Storage

Ma, Mingze; Yao, Yu; Wu, Ying; Yu, Yan

doi:10.1007/s42765-020-00052-w

Cited by 87 publications

(32 citation statements)

References 130 publications

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“…Copper sulfides were identified as a promising TE material since 1827 [ 18 – 20 ]. With low κ and high TE performance, copper sulfides attract extensive research interest [ 21 – 27 ]. Currently, the field of copper sulfides is mainly focusing on the reduction of κ by designing intrinsically low-dimensional crystalline structures and on the increase of power factor (PF = S 2 σ ) by enhancing electron transport properties [ 28 , 29 ].…”

Section: Introductionmentioning

confidence: 99%

Multiscale architectures boosting thermoelectric performance of copper sulfide compound

et al. 2021

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Owing to their high performance and earth abundance, copper sulfides (Cu 2− x S) have attracted wide attention as a promising medium-temperature thermoelectric material. Nanostructure and grain-boundary engineering are explored to tune the electrical transport and phonon scattering of Cu 2− x S based on the liquid-like copper ion. Here multiscale architecture-engineered Cu 2− x S are fabricated by a room-temperature wet chemical synthesis combining mechanical mixing and spark plasma sintering. The observed electrical conductivity in the multiscale architecture-engineered Cu 2− x S is four times as much as that of the Cu 2− x S sample at 800 K, which is attributed to the potential energy filtering effect at the new grain boundaries. Moreover, the multiscale architecture in the sintered Cu 2− x S increases phonon scattering and results in a reduced lattice thermal conductivity of 0.2 W·m −1 ·K −1 and figure of merit ( zT ) of 1.0 at 800 K. Such a zT value is one of the record values in copper sulfide produced by chemical synthesis. These results suggest that the introduction of nanostructure and formation of new interface are effective strategies for the enhancement of thermoelectric material properties. Supplementary Information The online version of this article (10.1007/s12598-020-01698-6) contains supplementary material, which is available to authorized users.

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Section: Introductionmentioning

confidence: 99%

Multiscale architectures boosting thermoelectric performance of copper sulfide compound

et al. 2021

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“…[22] As shown in Figure 8a-c Moreover, metal sulfides have recently been extensively studied for energy storage systems. [80] On account of their superior affinity with sulfur species, metal sulfides have strong polysulfide adsorption and catalytic capacity. According to the Cui group calculation, the binding energies between metal sulfides and polysulfides are moderate; namely, the polysulfides bind with metal sulfides neither so strongly that they poison the active site nor too weakly to diffuse away.…”

Section: Inorganic Materials For Polysulfide Catalysismentioning

confidence: 99%

Polysulfide Catalytic Materials for Fast‐Kinetic Metal–Sulfur Batteries: Principles and Active Centers

et al. 2021

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Benefiting from the merits of low cost, ultrahigh‐energy densities, and environmentally friendliness, metal–sulfur batteries (M–S batteries) have drawn massive attention recently. However, their practical utilization is impeded by the shuttle effect and slow redox process of polysulfide. To solve these problems, enormous creative approaches have been employed to engineer new electrocatalytic materials to relieve the shuttle effect and promote the catalytic kinetics of polysulfides. In this review, recent advances on designing principles and active centers for polysulfide catalytic materials are systematically summarized. At first, the currently reported chemistries and mechanisms for the catalytic conversion of polysulfides are presented in detail. Subsequently, the rational design of polysulfide catalytic materials from catalytic polymers and frameworks to active sites loaded carbons for polysulfide catalysis to accelerate the reaction kinetics is comprehensively discussed. Current breakthroughs are highlighted and directions to guide future primary challenges, perspectives, and innovations are identified. Computational methods serve an ever‐increasing part in pushing forward the active center design. In summary, a cutting‐edge understanding to engineer different polysulfide catalysts is provided, and both experimental and theoretical guidance for optimizing future M–S batteries and many related battery systems are offered.

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“…The ever-growing requirement for electronic equipment has triggered the continuous exploration of high-performance rechargeable batteries. − Among the diverse high-energy batteries, lithium–sulfur (Li–S) batteries are widely noted to depend on the high theoretical specific capacity (∼1675 mAh g –1 ) and large energy density (∼2500 Wh kg –1 ). − Additionally, the elemental sulfur is inexpensive, resourceful, and innoxious, rendering the Li–S batteries more prominent for future applications. However, the commercial popularization of Li–S batteries is still restricted by several concerns, such as the poor electrical conductivity of S and solid-state reduction products (e.g., Li 2 S 2 and Li 2 S), the high solubility and unfavorable shuttle effect of the lithium polysulfides (Li 2 S n , 3 ≤ n ≤ 8, LiPs), and noticeable volumetric expansion (∼80%) from S to Li 2 S 2 and Li 2 S. These issues usually cause sluggish reaction kinetics, rapid capacity fading, low rate capability, and even safety issues of Li–S batteries. − …”

Section: Introductionmentioning

confidence: 99%

Incorporating Cobalt Nanoparticles in Nitrogen-Doped Mesoporous Carbon Spheres through Composite Micelle Assembly for High-Performance Lithium–Sulfur Batteries

Fang

Yao

Heng

et al. 2021

ACS Appl. Mater. Interfaces

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Lithium–sulfur (Li–S) batteries have exhibited tremendous potential among the various secondary batteries benefitting from their large energy density, low expense, and enhanced security. However, the commercial use for Li–S batteries is immensely limited by the insulation of S, noticeable volume expansion from S to Li2S2/Li2S, and the undesired shuttle effect of lithium polysulfides (LiPs). Herein, a composite sulfur host has been prepared by in situ incorporations of cobalt nanoparticles (NPs) into nitrogen-doped mesoporous carbon spheres (Co/N-PCSs) through the composite micelle assembly strategy. The resultant functional Co/N-PCSs not only possess uniform spherical morphology with large open mesopores, high surface area, and pore volume but also have small Co NPs homogeneously inlaid into the pore walls of carbon frameworks. Both the experimental and theoretical calculation results demonstrate that the formed cobalt NPs can efficiently accelerate the lithium-ion diffusion reaction and greatly entrap the soluble intermediate LiPs. Benefiting from the well-designed structure, the Co/N-PCSs@S cathode with a S loading of 73.82 wt % delivers superior electrochemical performance, including long cycling stability (60% for the residual capacity at 1 A g–1 within 300 cycles) and excellent rate performance (∼512 mAh g–1 at 6 A g–1). This design strategy of implanting metal NPs in mesoporous carbon can be inspiring in energy storage applications.

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Progress and Prospects of Transition Metal Sulfides for Sodium Storage

Cited by 87 publications

References 130 publications

Multiscale architectures boosting thermoelectric performance of copper sulfide compound

Multiscale architectures boosting thermoelectric performance of copper sulfide compound

Polysulfide Catalytic Materials for Fast‐Kinetic Metal–Sulfur Batteries: Principles and Active Centers

Incorporating Cobalt Nanoparticles in Nitrogen-Doped Mesoporous Carbon Spheres through Composite Micelle Assembly for High-Performance Lithium–Sulfur Batteries

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