Ni@O-doped carbon Mott-Schottky heterojunctions to enhance sulfur conversion kinetics

Article Chemistry, Physical

Wane and wax strategy: Enhanced evolution kinetics of liquid phase Li2S4 to Li2S via mutually embedded CNT sponge/Ni-porous carbon electrocatalysts

Xiaoxiao Liu et al.

Summary: In this study, highly dispersed Ni nanoparticles were found to play a unique role in the reduction process of Li2S4. Decorating Ni-porous carbon (Ni-PC) on a carbon nanotube sponge (CNTS/Ni-PC) significantly improved the kinetics and current response, thus enhancing the sulfur utilization.

JOURNAL OF COLLOID AND INTERFACE SCIENCE (2023)

添加到收藏夹

Article Nanoscience & Nanotechnology

ZnFe2O4-Ni5P4 Mott-Schottky Heterojunctions to Promote Kinetics for Advanced Li-S Batteries

Dan Zhang et al.

Summary: This study addresses the issues of the shuttle effect and slow oxidation-reduction kinetics in lithium-sulfur batteries by preparing a ZnFe2O4-Ni5P4 Mott-Schottky heterojunction material. The self-generated built-in electric field in ZnFe2O4-Ni5P4 regulates charge distribution and accelerates electron transfer at the interface. Additionally, the collaboration of metal oxides and metal phosphides enhances the adsorption of polysulfides and accelerates reaction kinetics.

ACS APPLIED MATERIALS & INTERFACES (2022)

添加到收藏夹

Article Chemistry, Physical

Confined Co9S8 nanocrystals into N/S-Co-doped carbon nanofibers as a chainmail-like electrocatalyst for high-performance lithium-sulfur batteries with high sulfur loading

Wei Zhou et al.

Summary: The preparation of sulfiphilic ultrafine Co9S8 nanoparticles embedded lithiophilic N, S co-doping carbon nanofibers improves the stability and electrochemical performance of lithium-sulfur batteries.

JOURNAL OF COLLOID AND INTERFACE SCIENCE (2022)

添加到收藏夹

Article Chemistry, Multidisciplinary

Discovery of Dual-Functional Amorphous Titanium Suboxide to Promote Polysulfide Adsorption and Regulate Sulfide Growth in Li-S Batteries

Donghee Gueon et al.

Summary: In this study, the application of amorphous titanium suboxide (a-TiOx) in lithium-sulfur batteries was investigated. The results showed that a-TiOx strongly adsorbs lithium polysulfides but weakly adsorbs lithium sulfide. With the presence of a-TiOx, the batteries exhibited high conversion of lithium sulfide and high sulfur utilization, as well as maintained high capacity and stability.

ADVANCED SCIENCE (2022)

添加到收藏夹

Article Chemistry, Physical

Using sp2 N atom anchoring effect to prepare ultrafine vanadium nitride particles on porous nitrogen-doped carbon as cathode for lithium-sulfur battery

Chaoyang Sun et al.

Summary: In this study, ultra-fine vanadium nitride particles are grown on nitrogen-doped three-dimensional carbon as a sulfur host material for lithium-sulfur batteries. These particles demonstrate good discharge capacity and cycling stability, indicating promising prospects for practical applications.

JOURNAL OF COLLOID AND INTERFACE SCIENCE (2022)

添加到收藏夹

Article Chemistry, Applied

Loading Fe3O4 nanoparticles on paper-derived carbon scaffold toward advanced lithium-sulfur batteries

Jianmei Han et al.

Summary: The multifunctional interlayer designed in this study can effectively hinder the diffusion of polysulfides, improving the performance of lithium-sulfur batteries.

JOURNAL OF ENERGY CHEMISTRY (2021)

添加到收藏夹

Article Chemistry, Applied

Rational design of porous carbon allotropes as anchoring materials for lithium sulfur batteries

Tongtong Li et al.

Summary: Carbon allotropes are effective anchoring materials to alleviate the shuttle effect in lithium sulfur batteries. Studies on T-G monolayers show that they can enhance the interaction with LiPSs and have low diffusion barriers, ensuring high capacity and coulombic efficiency of batteries. These findings provide material design principles for high performance Li-S batteries using carbon allotrope monolayers.

JOURNAL OF ENERGY CHEMISTRY (2021)

添加到收藏夹

Article Materials Science, Multidisciplinary

Self-template synthesis of hollow nano-spherical nickel silicate/nickel sulfide composite and its application for lithium-sulfur battery

Na Xiao et al.

Summary: A new strategy of using hollow nano-spherical nickel silicate/nickel sulfide composite to stabilize sulfur for Li-S battery was introduced, showing promising performance in long cycling stability and rate capability. The hollow composite can encapsulate a high content of sulfur and exhibit a specific capacity of 640 mAh g-1 after 500 cycles at 0.5 C rate.

MATERIALS LETTERS (2021)

添加到收藏夹

Article Chemistry, Physical