Results 281 to 290 of about 24,485 (341)

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

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

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

Investigating of polysulfide and epoxy‐polysulfide copolymer curing

Materialwissenschaft und Werkstofftechnik, 2010
AbstractPolysulfide can be cured in various methods. In this work, the effect of various oxidative curing agents (manganese dioxide and para quinonedioxime) in presence of curing accelerator (Diphenylguanidine) on mechanical‐dynamical properties and cure time of polysulfide resin (G4) was investigated.
T. Farajpour, M. Abdouss, M. Derakhshani
openaire   +2 more sources

Design of Novel Transition-Metal-Doped C6N2 with High-Efficiency Polysulfide Anchoring and Catalytic Performances toward Application in Lithium-Sulfur Batteries.

ACS Applied Materials and Interfaces, 2022
Lithium-sulfur (Li-S) batteries are highly expected because of their high theoretical specific capacity and energy density. However, its application still faces challenges, including the shuttle effect affecting the sulfur reduction reaction, the high ...
Cheng He, Yu-Cang Liang, Wenxue Zhang
semanticscholar   +1 more source

Mo2N–W2N Heterostructures Embedded in Spherical Carbon Superstructure as Highly Efficient Polysulfide Electrocatalysts for Stable Room‐Temperature Na–S Batteries

Advances in Materials, 2021
Room‐temperature sodium–sulfur (RT Na–S) batteries are highly desirable for a sustainable large‐scale energy‐storage system due to their high energy density and low cost.
Shipeng Zhang, Yu Yao, Xiaojuan Jiao, Mingze Ma, Huijuan Huang, Xuefeng Zhou, Lifeng Wang, Jintao Bai, Yan Yu   +8 more
semanticscholar   +1 more source

The transulfuration of sulfinates by polysulfides

Experientia, 1962
E stato dimostrato che la transulfurazione che consegue alla incubazione dei solfinati con zolfo ed un composto tiolico e dovuta in parte alla produzione di un polisolfuro organico, formato dal tiolo e zolfo, ed in parte al polisolfuro inorganico, formato dalla decomposizione di quello organico. L'entita della transulfurazione prodotta direttamente dal
Doriano Cavallini, C. De Marco, M. Coletta   +2 more
openaire   +3 more sources

ChemInform Abstract: Polysulfide Complexes of Metals

ChemInform, 1987
Publisher Summary Sulfide minerals were formed mostly hydrothermally from postmagnetic fluids; it appears remarkable that the formation of many ore deposits cannot be conclusively explained because of the very low solubility of the corresponding sulfide.
Müller, Achim, Diemann, Ekkehard
openaire   +4 more sources