Results 91 to 100 of about 37,156 (387)

Rational Design of a Ni3N0.85 Electrocatalyst to Accelerate Polysulfide Conversion in Lithium-Sulfur Batteries.

ACS Nano, 2020
Slow kinetics of polysulfides conversion reactions lead to severe issues for lithium-sulfur (Li-S) batteries, for example, low rate capability, polysulfides migration, low Coulombic efficiencies, etc. These challenges hinder the practical applications of
Zihan Shen, Zili Zhang, Matthew Li, Yifei Yuan, Yue Zhao, Shuo Zhang, Chenglin Zhong, Jia Zhu, Jun Lu, Huigang Zhang   +9 more
semanticscholar   +1 more source

Surface Oxidation of 2D γ‐Indium Sulfide Nanoplatelets and Its Impact on Photoluminescence

Advanced Photonics Research, EarlyView.
Photoluminescence of defective 2D γ‐In2S3 can be modulated after exposure to air or oxygen‐containing ligands. Cryogenic photoluminescence measurements reveal that a new acceptor level is introduced upon oxidation, modulating the relative intensity of the emission bands.
Leyre Aldaz‐Caballero, Nan Liu, Pablo Molina, Antonio Arranz, Eva Hemmer, Antonio Benayas, Riccardo Marin   +6 more
wiley   +1 more source

C(sp3)─S Bond Formation via the Synergy of Oxidative With Reductive Photocatalysts Through Photoredox and Dual Hydrogen Atom Transfer Processes

Advanced Science, EarlyView.
The research reveals that polysulfide anions (K2Sx), which serve as reducing catalysts, can also effectively act as sulfur reagents, providing the formation of C(sp3)─S bonds through photoredox catalysis with an oxidative photocatalyst tetrabutylammonium decatungstate (TBADT) and dual hydrogen atom transfer (DHAT) process.
Chao Zhou, Qianli Liang, Xinyi Zhu, Xue Zhang, Limei Liu, Yicheng Zhang, Jie Liu, Xiaoyu Xie, Lei Wang   +8 more
wiley   +1 more source

Ether-compatible sulfurized polyacrylonitrile cathode with excellent performance enabled by fast kinetics via selenium doping

Nature Communications, 2019
Lithium sulfur batteries are promising for advanced energy storage, but polysulfide shuttling limits performance lifetime. Here the authors report selenium-doping in a sulfur-based cathode to prevent dissolution of polysulfide intermediates, leading to ...
Xin Chen, Linfeng Peng, Lihui Wang, Jiaqiang Yang, Zhangxiang Hao, Jingwei Xiang, Kai Yuan, Yunhui Huang, Bin Shan, Lixia Yuan, Jia Xie   +10 more
doaj   +1 more source

Formation of iron sulfide at faecal pellets and other microniches within suboxic surface sediment. [PDF]

, 2010
Faecal pellet deposition and bioturbation may lead to heterogeneously distributed particles of localized highly reactive organic matter (microniches) being present below the oxygen penetration depth.
Davison, William, Davison, William, Stockdale, Anthony, Zhang, Hao   +3 more
core   +1 more source

Balancing Anodic Stability and Cathodic Kinetics in Practical Lithium‐Sulfur Batteries With Non‐fluorinated Weakly Solvating Solvents

Advanced Science, EarlyView.
A weakly solvating electrolyte with non‐fluorinated cyclopentyl methyl ether solvent and 1,3‐dioxolane additive is employed in Li‐S batteries, which shows moderate lithium polysulfides solubility and improves the electrode interfacial stability. Therefore, appropriate cathodic kinetics and good anodic stability are both achieved in S/C||Li batteries ...
Zhicheng Wang, Shixiao Weng, Haiyang Zhang, Liping Wang, Xu Yao, Haifeng Tu, Dan Huang, Suwan Lu, Lingwang Liu, Jiangyan Xue, Fengrui Zhang, Guan Wu, Jieyun Zheng, Qing Wang, Liquan Chen, Jingjing Xu, Hong Li, Xiaodong Wu   +17 more
wiley   +1 more source

Self-erecting reflector Patent [PDF]

, 1970
Antenna design with self erecting mesh ...
Bahiman, H., Gates, J. D., Korvin, W.
core   +1 more source

Enhanced performance of sulfur-infiltrated bimodal mesoporous carbon foam by chemical solution deposition as cathode materials for lithium sulfur batteries [PDF]

, 2019
The porous carbon matrix is widely recognized to be a promising sulfur reservoir to improve the cycle life by suppressing the polysulfide dissolution in lithium sulfur batteries (LSB). Herein, we synthesized mesocellular carbon foam (MSUF-C) with bimodal
Cho, B.-W., Chun, J., Jeong, T.-G., KIM, YONG TAE, Lee, J.   +4 more
core   +1 more source

Fabricating 2D MoS2 with Edge Sulfur Vacancy Defects by Heavy Ion Bombardment Shear‐Exfoliation for Enhanced Sodium Storage

Advanced Science, EarlyView.
Few‐layered MoS2 with edge sulfur vacancies (L‐MoS2‐x) was prepared via heavy ion bombardment shear‐exfoliation. This anode demonstrates superior sodium storage performance, delivering 399.91 mAh g−1 at 5 A g−1 and maintaining 460.71 mAh g−1 at 1 A g−1 after 100 cycles in sodium‐ion batteries (SIBs). Abstract Vacancy engineering is widely considered an
Feiyan Mu, Siqi Li, Dongqi Zhang, Qing Zhang, Zhe Hu, Ye Han, Zhixin Tai, Yajie Liu   +7 more
wiley   +1 more source

Copper chloride cathode for a secondary battery [PDF]

, 1990
Higher energy and power densities are achieved in a secondary battery based on molten sodium and a solid, ceramic separator such as a beta alumina and a molten catholyte such as sodium tetrachloroaluminate and a copper chloride cathode.
Bankston, Clyde P., Bugga, Ratnakumar V., Distefano, Salvador, Nagasubramanian, Ganesan   +3 more
core   +1 more source