Results 121 to 130 of about 110,768 (289)

A porous 3D-RGO@MWCNT hybrid material as Li–S battery cathode

Beilstein Journal of Nanotechnology, 2019
In this work, a unique three-dimensional (3D) structured carbon-based composite was synthesized. In the composite, multiwalled carbon nanotubes (MWCNT) form a lattice matrix in which porous spherical reduced graphene oxide (RGO) completes the 3D ...
Yongguang Zhang, Jun Ren, Yan Zhao, Taizhe Tan, Fuxing Yin, Yichao Wang   +5 more
doaj   +1 more source

Contra‐Diffusion Engineering of Single‐Atom Catalytic Interlayers Enables Reversible Sulfur Redox Chemistry

Angewandte Chemie International Edition, EarlyView.
A contra‐diffusion strategy is introduced to grow uniformly distributed Co–Nx single‐atom catalysts (CoSAs) within a carbonized aramid nanofiber (CANF) interlayer. The resulting CD‐CANF enables efficient polysulfide regulation, low metal loading, and exceptional long‐term cycling stability in lithium–sulfur batteries. ABSTRACT Achieving durable lithium–
Yan‐Jhang Chen, Tsung‐I. Yeh, Chia‐Yu Chang, Wei‐Ming Huang, Jing‐Yu Li, Mohamed Gamal Mohamed, Shiao‐Wei Kuo, Bing‐Joe Hwang, Yun‐Sheng Ye   +8 more
wiley   +1 more source

Simple cathode design for Li-S batteries : cell performance and mechanistic insights by in operando X-ray diffraction [PDF]

, 2014
Rechargeable batteries have been receiving increasing attention over the past several years, particularly with regard to the accelerated development of electric vehicles, but also for their potential in grid storage applications. Among the broad range of
Brezesinski, Torsten, Janek, Jürgen, Kulisch, Jörn, Sommer, Heino   +3 more
core   +1 more source

Enabling Wide‐Temperature Range Li‐S Batteries via Asymmetric‐Coordinated Titanium Sites‐Implanted Graphene Single‐Atom Electrocatalysts

Carbon Energy, EarlyView.
A Ti‐based single‐atom catalyst featuring isolated Ti atoms anchored on reduced graphene oxide (Ti‐rGO) has been successfully synthesized as a sulfur host material. This Ti‐rGO composite effectively integrates the robust adsorption capacity of Ti‐O5 coordination groups toward LiPSs with the rapid mass transport kinetics inherent to its porous ...
Shilin Chen, Kaijie Miao, Tao Ban, Jiangqi Zhou   +3 more
wiley   +1 more source

Reusable Solid Rocket Motor - Accomplishment, Lessons, and a Culture of Success [PDF]

, 2011
The Reusable Solid Rocket Motor (RSRM) represents the largest solid rocket motor (SRM) ever flown and the only human-rated solid motor. High reliability of the RSRM has been the result of challenges addressed and lessons learned.
Moore, D. R., Phelps, W. J.
core   +1 more source

Binder free three-dimensional sulphur/few-layer graphene foam cathode with enhanced high-rate capability for rechargeable lithium sulphur batteries. [PDF]

, 2014
A novel ultra-lightweight three-dimensional (3-D) cathode system for lithium sulphur (Li-S) batteries has been synthesised by loading sulphur on to an interconnected 3-D network of few-layered graphene (FLG) via a sulphur solution infiltration method.
Chen, Renjie, Ducati, Caterina, Gao, Chenlong, Hofmann, Stephan, Kidambi, Piran R, Kumar, R Vasant, Peng, Xiaoyu, Xi, Kai   +7 more
core   +2 more sources

Engineering Spin State of Ni Single‐Atoms to Enhance Electrocatalytic Activity of Sulfur Conversion in Lithium–Sulfur Batteries

Carbon Energy, EarlyView.
Ni SACs with high‐spin state show strong catalytic activity toward lithium polysulfides (LPSs), whereas the Ni SACs with low‐spin state have strong adsorption capacity for LPSs. Therefore, the preparation of Ni SACs with an intermediate spin state by controlling pyridinic N and pyrrolic N enables an excellent balance between the adsorption and ...
Mengyang Li, Guiqiang Cao, Yiming Qi, Chenyang Hou, Xuexia Song, Ruixian Duan, Huijuan Yang, Yifan Li, Xiaorui Chen, Zongnan Lv, Qinchuan Chen, Yitong Yuan, Guohua Liu, Yuhui Xu, Jingjing Wang, Wenbin Li, Xifei Li   +16 more
wiley   +1 more source

Transient Pressure Test Article Test Program [PDF]

The Transient Pressure Test Article (TPTA) test program is being conducted at a new test facility located in the East Test Area at the National Aeronautics and Space Administration's (NASA's) Marshall Space Flight Center (MSFC) in Huntsville, Alabama ...
Vibbart, Charles M.
core   +1 more source

Engineered Carbon Dots as Multifunctional Nanoplatforms for Next‐Generation High‐Performance Advanced Batteries

Carbon Energy, EarlyView.
Herein, we mainly summarize the characteristics of the main types of carbon dots (CDs), analyze the strategies for improving advanced batteries' performance via incorporating CDs, comprehensively summarize recent applications of CDs in the main components (electrode, electrolyte, and separator) of advanced batteries, and propose the technical ...
Chuang Jiang, Jinlong Feng, Zhenjie Liu, Ming Jia, Qingxi Hou, Wei Liu   +5 more
wiley   +1 more source

ZIF‐67 In Situ Grown PAN Spun Membrane Gel Electrolyte for Sodium‐Sulfur Batteries

Carbon Energy, EarlyView.
This illustration shows the fabrication process of a solid‐state electrolyte for sodium‐sulfur (Na‐S) batteries. First, a polyacrylonitrile (PAN) fibrous membrane is prepared. Next, ZIF‐67 is grown in situ on the PAN membrane to form PAN@ZIF‐67. Subsequently, polyethylene oxide (PEO) is introduced into PAN@ZIF‐67 to obtain the composite electrolyte PEO/
Haowei Shi, Fengjin Han, Binghao Chen, Qiaohong Peng, Hua Yuan   +4 more
wiley   +1 more source