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Researchers from Jilin University Report Details of New Studies and Findings in the Area of Chalcogens (Multiwalled carbon nanotubes-sulfur...

July 4, 2014



Researchers from Jilin University Report Details of New Studies and Findings in the Area of Chalcogens (Multiwalled carbon nanotubes-sulfur composites with enhanced electrochemical performance for lithium/sulfur batteries)

By a News Reporter-Staff News Editor at Science Letter -- Research findings on Chalcogens are discussed in a new report. According to news reporting originating in Changchun, People's Republic of China, by NewsRx journalists, research stated, "Multiwalled carbon nanotubes-sulfur (MWCNTs-S) composites were synthesized by chemical activation of MWCNTs and capillarity between sulfur and MWCNTs."

The news reporters obtained a quote from the research from Jilin University, "The MWCNTs activated by potassium hydroxide (denoted as K-MWCNTs) were used as conductive additive. The as-prepared K-MWCNTs-S composites can display excellent cycle stability and rate capability with the initial discharge capacity of 741 mAh g-1 and capacity retention of 80% after 50 cycles compared to pure S. The improvement in the electrochemical performance for K-MWCNTs-S composites is attributed to the interstitial structure of the MWCNTs resulted from the strong chemical etching, which can facilitate the insertion and extraction of Li ions and more better percolation of the electrolyte, and also ascribed to enhanced electronic conductivity of K-MWCNTs-S composites."

According to the news reporters, the research concluded: "It is indicated that the K-MWCNTs-S composites can be used as the cathode materials for lithium-sulfur batteries."

For more information on this research see: Multiwalled carbon nanotubes-sulfur composites with enhanced electrochemical performance for lithium/sulfur batteries. Applied Surface Science, 2014;307():346-350. Applied Surface Science can be contacted at: Elsevier Science Bv, PO Box 211, 1000 Ae Amsterdam, Netherlands. (Elsevier - www.elsevier.com; Applied Surface Science - www.elsevier.com/wps/product/cws_home/505669)

Our news correspondents report that additional information may be obtained by contacting X.Z. Ma, Jilin University, Coll Mat Sci & Engn, Changchun 130025, People's Republic of China. Additional authors for this research include B. Jin, P.M. Xin and H.H. Wang (see also Chalcogens).

Keywords for this news article include: Asia, Sulfur, Changchun, Chemistry, Chalcogens, Fullerenes, Nanotechnology, Electrochemical, Carbon Nanotubes, Emerging Technologies, People's Republic of China

Our reports deliver fact-based news of research and discoveries from around the world. Copyright 2014, NewsRx LLC


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Source: Science Letter


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