The role of selenium vacancies functionalized mediator of bimetal (Co, Fe) selenide for high-energy–density lithium-sulfur batteries

Kang, Xiyang; Jin, Ziqian; Peng, Huaiqi; Cheng, Zihao; Liu, Lijie; Li, Xin; Xie, Lexing; Zhang, Jianmin; Dong, Yutao

doi:10.1016/j.jcis.2023.01.090

Cited by 39 publications

(8 citation statements)

References 62 publications

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“…It is clear that CoS 2 -MoS 2 /CNT displays a lower specic surface area and pore volume than CNT, which can be attributed to the embedding of catalyst nanoparticles in the CNT support. 56 Transmission electron microscope (TEM) images make it clear that the nanoparticles of the CoS 2 /CNT, MoS 2 /CNT and CoS 2 -MoS 2 / CNT composites are composed of some interlaced and stacked nanosheets (Fig. S10a, 11a, † 2a and b).…”

Section: Resultsmentioning

confidence: 99%

Interfacial engineering design induces enriched-defects expediting catalytic conversion kinetics of polysulfides

Zhang,

Chen,

et al. 2024

J. Mater. Chem. A

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Section: Resultsmentioning

confidence: 99%

Interfacial engineering design induces enriched-defects expediting catalytic conversion kinetics of polysulfides

Zhang,

Chen,

et al. 2024

J. Mater. Chem. A

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“…LSBs are currently only in the basic research stage and have not been commercialized, which is mainly affected by the insulation of sulfur/lithium sulfide (S/Li2S), the fatal shuttle effect of LiPSs, as well as volume expansion effect [99]. The tunable atomic species of HEMs and the highly heterogeneous of atomic surfaces, which provides diverse active sites to adsorb and react LiPSs.…”

Section: Discussionmentioning

confidence: 99%

Status and Prospects of High-Entropy Materials for Lithium–Sulfur Batteries

Yao¹,

Chen²,

Niu³

et al. 2023

Preprint

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The emergence of various electronic devices and equipment such as electric vehicles and drones requires higher energy density energy storage devices. Lithium-sulfur batteries (LSBs) are considered as the most promising new generation energy storage system owing to high theoretical specific capacity and energy density. However, the severe shuttle behaviors of soluble lithium polysulfides (LiPSs) and the slow redox kinetics lead to low sulfur utilization and poor cycling stability, which seriously hinder the commercial application of LSBs. Therefore, various catalytic materials have been employed to solve these troublesome problems. High entropy materials (HEMs), as advanced materials, can provide unique surface and electronic structures that expose plentiful catalytic active sites, which opens new ideas for the regulation of LiPSs redox kinetics. Notwithstanding many instructive reviews in the land of LSBs, while this review aims to offer a complete and shrewd summary of the current progresses in HEMs-based LSBs, including in-depth interpretation of design principles and mechanistic electrocatalysis functions as well as pragmatic perspectives.

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“…As depicted in Figures S2a and S2b, the prepared catalysts showed typical type IV isotherms along with hysteresis loops in the highpressure range. 35 The specific surface area and total pore volume of 8% BS-12/ZSH were 43.33 m 2 /g and 0.112 cm 3 /g, respectively, which were remarkably higher than those of 8% BS/ZSH (Table S1). The upper specific surface area along with total pore volume could be beneficial in offering more adsorption sites and improving the piezo-photoelectric performance.…”

Section: Morphology and Chemical Compositionmentioning

confidence: 92%

Piezoelectric Polarization and Sulfur Vacancy Enhanced Photocatalytic Hydrogen Evolution Performance of Bi₂S₃/ZnSn(OH)₆ Piezo-photocatalyst

Li,

Zhu,

Huang

et al. 2024

Inorg. Chem.

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The combination of piezoelectric catalysis and photocatalysis could effectively enhance the carrier separation efficiency and further improve the hydrogen production activity. However, piezoelectric polarization always suffers from a low polarization strength, which severely restricts its actual applications. In this study, we successfully synthesized a novel sulfur vacancy-rich Bi 2 S 3 /ZnSn (OH) 6 (BS-12/ZSH) piezo-photocatalyst for hydrogen evolution through water splitting. Notably, the piezo-photocatalytic hydrogen generation rate of the 8% BS-12/ ZSH catalyst (336.21 μmol/g/h) was superior to that of pristine ZSH (29.71 μmol/g/h) and BS-12 (21.66 μmol/g/h). In addition, the hydrogen generation for 8% BS-12/ZSH (336.21 μmol/g/h) under ultrasonic coupling illumination was significantly higher than that under single illumination (52.09 μmol/g/h) and ultrasound (121.90 μmol/g/h), owing to the cooperative interaction of the sulfur vacancy and piezoelectric field. Various characterization analyses confirmed that (1) the introduction of sulfur vacancies in BS-12 provided more active sites, (2) BS-12 with sulfur vacancies acted as a co-catalyst to accelerate the hydrogen production rate, and (3) the piezoelectric field eliminated the electrostatic shielding and offered an additional driving force, which effectively promoted the separation of electron−hole pairs. This research clearly reveals the synergistic effect between piezocatalysis and photocatalysis as well as offers a promising sight for the rational design of high-efficiency piezo-photocatalysts.

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The role of selenium vacancies functionalized mediator of bimetal (Co, Fe) selenide for high-energy–density lithium-sulfur batteries

Cited by 39 publications

References 62 publications

Interfacial engineering design induces enriched-defects expediting catalytic conversion kinetics of polysulfides

Interfacial engineering design induces enriched-defects expediting catalytic conversion kinetics of polysulfides

Status and Prospects of High-Entropy Materials for Lithium–Sulfur Batteries

Piezoelectric Polarization and Sulfur Vacancy Enhanced Photocatalytic Hydrogen Evolution Performance of Bi₂S₃/ZnSn(OH)₆ Piezo-photocatalyst

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The role of selenium vacancies functionalized mediator of bimetal (Co, Fe) selenide for high-energy–density lithium-sulfur batteries

Cited by 39 publications

References 62 publications

Interfacial engineering design induces enriched-defects expediting catalytic conversion kinetics of polysulfides

Interfacial engineering design induces enriched-defects expediting catalytic conversion kinetics of polysulfides

Status and Prospects of High-Entropy Materials for Lithium–Sulfur Batteries

Piezoelectric Polarization and Sulfur Vacancy Enhanced Photocatalytic Hydrogen Evolution Performance of Bi2S3/ZnSn(OH)6 Piezo-photocatalyst

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Product

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Piezoelectric Polarization and Sulfur Vacancy Enhanced Photocatalytic Hydrogen Evolution Performance of Bi₂S₃/ZnSn(OH)₆ Piezo-photocatalyst