Results 311 to 320 of about 39,422 (338)

Niobium Diboride Nanoparticles Accelerating Polysulfide Conversion and Directing Li2S Nucleation Enabled High Areal Capacity Lithium-Sulfur Batteries.

ACS Nano, 2022
The shuttle effect of polysulfides and Li2S sluggish nucleation are the major problems hampering the further development of lithium-sulfur batteries. The reasonable design for sulfur host materials with catalytic function has been an effective strategy ...
Bin Wang, Lu Wang, Bo Zhang, Suyuan Zeng, Fang Tian, Jia-tai Dou, Yitai Qian, Liqiang Xu   +7 more
semanticscholar   +1 more source

Modulating d-Band Electronic Structures of Molybdenum Disulfide via p/n Doping to Boost Polysulfide Conversion in Lithium-Sulfur Batteries.

Small, 2023
Polysulfide shuttle effect and sluggish sulfur reaction kinetics severely impede the cycling stability and sulfur utilization of lithium-sulfur (Li-S) batteries.
Guo-feng Liu, Q. Zeng, X. Sui, Shuhao Tian, X. Sun, Qingfeng Wu, Xijuan Li, Yuhao Zhang, K. Tao, E. Xie, Zhenxing Zhang   +10 more
semanticscholar   +1 more source

Self‐Assembly of 0D–2D Heterostructure Electrocatalyst from MOF and MXene for Boosted Lithium Polysulfide Conversion Reaction

Advances in Materials, 2021
The design of nanostructured electrocatalysts with high activity and long‐term durability for the sluggish lithium polysulfide (LiPS) conversion reaction is essential for the development of high‐performance lithium–sulfur (Li–S) batteries. Here, the self‐
Zhengqing Ye, Ying Jiang, Li Li, Feng Wu, Renjie Chen   +4 more
semanticscholar   +1 more source

Strain Engineering of a MXene/CNT Hierarchical Porous Hollow Microsphere Electrocatalyst for a High-Efficiency Lithium Polysulfide Conversion Process.

Angewandte Chemie, 2021
Tensile-strained Mxene/carbon nanotube (CNT) porous microspheres were developed as an electrocatalyst for the lithium polysulfide (LiPS) redox reaction. The internal stress on the surface results in lattice distortion with expanding Ti-Ti bonds, endowing
Xin Wang, Dan Luo, Jiayi Wang, Zhenghao Sun, G. Cui, Yuxuan Chen, Tong Wang, Lirong Zheng, Yan Zhao, L. Shui, Guofu Zhou, K. Kempa, Yongguang Zhang, Zhongwei Chen   +13 more
semanticscholar   +1 more source

A High‐Efficiency Mo2C Electrocatalyst Promoting the Polysulfide Redox Kinetics for Na–S Batteries

Advances in Materials, 2022
Room‐temperature sodium–sulfur (RT Na–S) batteries, as promising next‐generation energy storage candidates, are drawing more and more attention due to the high energy density and abundant elements reserved in the earth.
Xuefeng Zhou, Zu-da Yu, Yu Yao, Yu Jiang, X. Rui, Jiaqin Liu, Yan Yu   +6 more
semanticscholar   +1 more source

MXene‐Derived TinO2n−1 Quantum Dots Distributed on Porous Carbon Nanosheets for Stable and Long‐Life Li–S Batteries: Enhanced Polysulfide Mediation via Defect Engineering

Advances in Materials, 2021
The application of Li–S batteries has been hindered by the shuttling behavior and sluggish reaction kinetics of polysulfides. Here an effective polysulfide immobilizer and catalytic promoter is developed by proposing oxygen‐vacancy‐rich TinO2n−1 quantum ...
Heng Zhang, Li Yang, Peigen Zhang, Chengjie Lu, D. Sha, Bingzheng Yan, Wei He, Min Zhou, Wei Zhang, Long Pan, Zhengming Sun   +10 more
semanticscholar   +1 more source

Utilizing the Built‐in Electric Field of p–n Junctions to Spatially Propel the Stepwise Polysulfide Conversion in Lithium–Sulfur Batteries

Advances in Materials, 2021
Integrating sulfur cathodes with effective catalysts to accelerate polysulfide conversion is a suitable way for overcoming the serious shuttling and sluggish conversion of polysulfides in lithium–sulfur batteries.
Hongtai Li, Chi Chen, Yingying Yan, Tianran Yan, Chen Cheng, Dan Sun, Liang Zhang   +6 more
semanticscholar   +1 more source

Manipulating Electrocatalytic Polysulfide Redox Kinetics by 1D Core–Shell Like Composite for Lithium–Sulfur Batteries

Advanced Energy Materials, 2022
Although lithium–sulfur batteries have high theoretical energy density of 2600 Wh kg−1, the sluggish redox kinetics of soluble liquid polysulfide intermediates during discharge and charge is one of the main reasons for their limited battery performance ...
Chuanchuan Li, Weini Ge, Siyun Qi, Lin Zhu, Renzhi Huang, Mingwen Zhao, Yitai Qian, Liqiang Xu   +7 more
semanticscholar   +1 more source

Crosslinked Nanofiber‐Reinforced Solid‐State Electrolytes with Polysulfide Fixation Effect Towards High Safety Flexible Lithium–Sulfur Batteries

Advanced Functional Materials, 2022
Solid‐state lithium–sulfur (Li–S) batteries using gel polymer electrolytes have attracted much attention owing to their higher safety compared to liquid electrolytes and lower interfacial resistance compared to ceramic electrolytes.
Jinzhi Sheng, Qi Zhang, Chong Sun, Junxiong Wang, X. Zhong, Biao Chen, Chuang Li, Runhua Gao, Zhiyuan Han, Guangmin Zhou   +9 more
semanticscholar   +1 more source

Altering Local Chemistry of Single‐Atom Coordination Boosts Bidirectional Polysulfide Conversion of Li–S Batteries

Advanced Functional Materials, 2022
Single‐atom catalysts affording multifarious typed metal centers and varied coordination numbers are extensively employed in Li−S realm to promote redox kinetics.
Ting Huang, Ying-jie Sun, Jianghua Wu, Zixiong Shi, Yifan Ding, Menglei Wang, C. Su, Ya‐yun Li, Jingyu Sun   +8 more
semanticscholar   +1 more source