PDF Publication Title:
Text from PDF Page: 003
Abstract Room-temperature sodium-sulfur (RT Na-S) batteries have gained increasing attention from energy storage community in recent years. In this work, homogeneous nitrogen-doped graphene nanosheets/sulfur (NGNS/S) nanocomposites, synthesized using chemical reaction- deposition method and low temperature heat treatment, were studied as active cathode materials for RT Na-S batteries. Different loading composites with 86%, 65%, 45% and 25% gamma-S8 have been electrochemically evaluated, respectively, and compared with two control electrodes of NGNS and S. It was found that the NGNS/S composite with 25% S loading exhibited the best electrochemical performance with specific capacities of 212 and 136 mAh g-1 in the 1st and 10th cycles, respectively. The enhanced electrochemical performance of NGNS/S nanocomposite is mainly attributed to the improved kinetics due to the NGNS conductive network and easier intercalation of Na+ into expanded NGNS layers due to the addition of S within the graphene layers. In addition, the composite with 25% S loading shows higher surface area and complete reaction with product of Na2S, which likely contributes to the improved energy capacity. 2 This article is protected by copyright. All rights reservedPDF Image | Nitrogen-Doped Graphene Nanosheets Composites as Cathode in Sodium-Sulfur Batteries
PDF Search Title:
Nitrogen-Doped Graphene Nanosheets Composites as Cathode in Sodium-Sulfur BatteriesOriginal File Name Searched:
slct-201701951.pdfDIY PDF Search: Google It | Yahoo | Bing
Sulfur Deposition on Carbon Nanofibers using Supercritical CO2 Sulfur Deposition on Carbon Nanofibers using Supercritical CO2. Gamma sulfur also known as mother of pearl sulfur and nacreous sulfur... More Info
CO2 Organic Rankine Cycle Experimenter Platform The supercritical CO2 phase change system is both a heat pump and organic rankine cycle which can be used for those purposes and as a supercritical extractor for advanced subcritical and supercritical extraction technology. Uses include producing nanoparticles, precious metal CO2 extraction, lithium battery recycling, and other applications... More Info
| CONTACT TEL: 608-238-6001 Email: greg@infinityturbine.com | RSS | AMP |