نتایج جستجو برای: transition metal ions
تعداد نتایج: 546120 فیلتر نتایج به سال:
Sufeng Wei Key Laboratory of Advanced Structural Materials, Changchun University of Technology, Changchun 130012, People’s Republic of China Yan Liu Key Laboratory of Bionic Engineering (Ministry of Education), Jilin University, Changchun 130022, People’s Republic of China Jianshe Lian and Qing Jiang Key Laboratory of Automobile Materials, Department of Materials Science and Engineering, Jilin ...
The complexation reactions of some transition metal ions and 2-aminopyridine (2-ampy) were studied potentiometrically in aqueous solution at µ=0.1 M and 25 °C. The overall stability constants log β’s of all species are obtained by computer refinement of pH-volume data with using the BEST computer program. Several models were tested and the best one accepted according to the least sum of squ...
Marine microorganisms are presented with unique challenges to obtain essential metal ions required to survive and thrive in the ocean. The production of organic ligands to complex transition metal ions is one strategy to both facilitate uptake of specific metals, such as iron, and to mitigate the potential toxic effects of other metal ions, such as copper. A number of important trace metal ions...
Concanavalin A (con A) is a saccharide-binding protein of the Jack bean [ 11. The protein contains two different metal-binding sites, which must be occupied in order for saccharide binding to be possible [2,3]. When the metal ions are removed by acid treatment, the demetallized protein can bind only divalent transition metal ions (Mn”, Co”, Ni2+, Zn”, or Cd23 at a site designated S 1, but it ca...
Further increase in energy density of lithium batteries is needed for zero emission vehicles. However, energy density is restricted by unavoidable theoretical limits for positive electrodes used in commercial applications. One possibility towards energy densities exceeding these limits is to utilize anion (oxide ion) redox, instead of classical transition metal redox. Nevertheless, origin of ac...
We report the formation of a series of metal-containing hydrogenated silicon clusters using an ion trap. Mass analyses reveal that many types of transition metal ions M(+) ( M = Hf, Ta, W, Re, Ir, etc.) react with silane (SiH4) to form dehydrogenated MSi( +)(n) cluster ions ( n = 14, 13, 12, 11, 9, respectively) as an end product, indicating that the metal atom is endohedral and stabilizes the ...
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