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Zhi-Fu Guo,Xiang-Yu Long,Pan Dong,Yu-Ming Wei,Li-Ping Bai,Xiao-Xuan Dang,Hao-Lei Wan,Li-Jun Zhang,You-Liang Zheng 한국유전학회 2011 Genes & Genomics Vol.33 No.2
The α-gliadins from Crithopsis delileana (Schult) Roshev (2n=2x=14, KK) were investigated by Acid polyacrylamide gel electrophoresis (A-PAGE) analysis. It was indicated that the electrophoresis mobility of gliadins from C.delileana had obvious difference with those from common wheat in α, γand ω region. Using primers designed from published sequences of α-gliadin genes, three α-gliadin genes were isolated from C. delileana, which were designated as gli-ka1,gli-ka2 and gli-ka3, respectively. Two in-frame stop codons were found in the coding sequences of gli-ka3, indicating that gli-ka3 could be a pseudogene. The gli-ka2 was a gliadin with an odd number of cysteines, resulting from a non-synonymous mutation. This change might lead to the interactive behavior of gli-ka2. Three α-gliadin genes of C. delileana had the similar but not identical primary structures to the corresponding gene sequences from other wheat related species. By the alignment of α-gliadin genes from Triticeae,phylogenetic analysis indicated that three α-gliadin genes of C. delileana clustered together with all α-gliadin genes from Ee genome of Lophopyrum elongatum by an interior paralleled branch.
Effect of Metal (Mn, Ti) Doping on NCA Cathode Materials for Lithium Ion Batteries
Wan, Dao Yong,Fan, Zhi Yu,Dong, Yong Xiang,Baasanjav, Erdenebayar,Jun, Hang-Bae,Jin, Bo,Jin, En Mei,Jeong, Sang Mun Hindawi Limited 2018 Journal of nanomaterials Vol.2018 No.-
<P>NCA (LiNi0.85Co0.10Al0.05-<I>x</I> M<I>x</I>O2, M=Mn or Ti, <TEX>$ x$</TEX> < 0.01) cathode materials are prepared by a hydrothermal reaction at 170°C and doped with Mn and Ti to improve their electrochemical properties. The crystalline phases and morphologies of various NCA cathode materials are characterized by XRD, FE-SEM, and particle size distribution analysis. The CV, EIS, and galvanostatic charge/discharge test are employed to determine the electrochemical properties of the cathode materials. Mn and Ti doping resulted in cell volume expansion. This larger volume also improved the electrochemical properties of the cathode materials because Mn<SUP>4+</SUP> and Ti<SUP>4+</SUP> were introduced into the octahedral lattice space occupied by the Li-ions to expand the Li layer spacing and, thereby, improved the lithium diffusion kinetics. As a result, the NCA-Ti electrode exhibited superior performance with a high discharge capacity of 179.6 mAh g<SUP>−1</SUP> after the first cycle, almost 23 mAh g<SUP>−1</SUP> higher than that obtained with the undoped NCA electrode, and 166.7 mAh g<SUP>−1</SUP> after 30 cycles. A good coulombic efficiency of 88.6% for the NCA-Ti electrode is observed based on calculations in the first charge and discharge capacities. In addition, the NCA-Ti cathode material exhibited the best cycling stability of 93% up to 30 cycles.</P>