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Yu Hai Wang,Zhe Dai,Chao Yue Zhang,Guo Wen Sun,Zhong Wei Lu,Xiu Ping Gao,Geng Zhi Sun,Wei Lan,Zhen Xing Zhang,Xiao Jun Pan,Jin Yuan Zhou 한국물리학회 2020 Current Applied Physics Vol.20 No.9
It was demonstrated that the electrochemical performance enhancements in KOH-activated carbon materials should be mainly due to the created polar oxygen-containing functional groups (OFGs, such as such as C–O, C–– O, –OH, and O–C–– O), while the role of each OFGs on the electrochemical enhancements is still unclear. In this work, KOH activation treatments were systematically conducted on carbon nanotubes (CNTs) to explore the role of each OFG on the performance enhancements of Li–S batteries (LSBs). Results showed that the capacity of activated-CNT-sulfur (a-CNT-S) cathodes is 33% higher than that of the pristine CNT-S cathodes, and their rate capability and cycling stability are also enhanced. And the electrochemical analysis combining with Fourier transform infrared spectroscopy indicated that the formed C–O bonds are the real factor for the enhanced electrochemical performances of a-CNT-S cathodes. Furthermore, the optimal activation conditions on CNTbased cathodes for LSBs were optimized to be 10 min at 700 ℃.
Characterization of a novel variant HMW‐glutenin gene from Elymus canadensis
Qian‐Tao Jiang,Yu‐Ming Wei,Tao Liu,Ji‐Rui Wang,Zhi‐En Pu,Xiu‐Jin Lan,You‐Liang Zheng,Zhen‐Xiang Lu 한국유전학회 2010 Genes & Genomics Vol.32 No.4
High molecular weight (HMW) glutenin subunits (GS) play a key role in the determination of end‐use quality of wheat and other cereal crops. In this study, we report the isolation and characterization of both promoter region and ORF of novel HMW‐GS allele 1St1.3 from a perennial Triticeae species,Elymus canadensis. The amino acid (AA) sequences of E. canadensis 1St1.3 were deduced as 434 aa. Its protein primary structure comprises a signal peptide with a conserved N‐terminal domain, a central repetitive domain and a C‐terminal domain. E. canadensis 1St 1.3 possesses several distinct characteristics which are different from those of wheat HMW‐GSs. The N‐terminal domains of E. canadensis 1St 1.3 resemble that of y‐type subunits, while their C‐terminal domains are more similar to x‐type subunits. The deletion of 85 bp fragment has been observed in promoter region of 1St 1.3, however which has not interrupted the expression of this gene. Our results indicate that 1St 1.3 is novel HMW‐GS variants which will be valuable for enhancing our understanding of structural differentiation and the evolutionary relationship among HMW‐GSs in Triticeae species.