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J. Cent. South Univ. (2018) 25: 1274-1284 DOI: https://doi.org/10.1007/s11771-018-3824-6 Extraction of copper and zinc from naturally contaminated copper mine soils: Chemical fractionation analysis...) and nitrilotriacetic acid (NTA). Six soil samples were characterized for the distribution of four chemical fractions of Cu or Zn (acid-soluble, reducible, oxidizable and residual). For the extraction......
samples were examined by means of BET and H2-TPR.The analysis results of surface area and chemical absorption reduction showed that GAL content in GAL/CZA composition was the main effect on surface area...Influence of Al2O3/CeZrAl composition on the catalytic behavior of Pd/Rh catalyst贺小昆1,2,孙加林1,桓源峰1,2,胡劲1,杨冬霞1,21. Material and Metallurgy Engineering College,Kunming Science & Technology University2......
粉末颗粒表面形貌的SEM像 Fig. 1 SEM images of raw powder particle surface morphology 表1 试验中所用氢化钛粉化学成分 Table 1 Chemical composition of TiH2 powders in experiments (mass fraction, %) 表2 试验中所用HDH钛粉化学成分 Table 2 Chemical composition of HDH powders in experiments (mass fraction, %) 表3 试验中所用Al-V中间合金粉化学成分 Table 3 Chemical composition of Al-V intermediate alloy powders......
. The chemical composition of the surface films formed was investigated by XPS (ESCALAB 250xi, Thermo Fisher) on an instrument equipped with an Al Kα X-ray source (hv=1486.6 eV) operated at 150 W. Because... for three years in Turpan, China, which is a typical hot and dry atmosphere environment, was investigated using mass-loss tests, morphology observations, composition analyses, and electrochemical......
Composition optimization of high-strength Mg-Gd-Y-Zr alloys based on the structural unit of Mg-Gd solid solutionRui Jiang1,Shengnan Qian1,Chuang Dong1,2,Ying Qin1,Yujuan Wu3,Jianxin Zou3,Xiaoqin...="ChDivSummary">Mg-Gd-Y-Zr alloys with high strength fall within narrow composition range.The present paper explains their composition rule by establishing the cluster-plus-glue-atom unit of Gd-containing Mg......
:Ce~(3+) exchanged montmodllortite; chemical composition; microstructure; antibacterial activity; rare earths; [全文内容正在添加中] ... activity of Ce/MMTs were also investigated. The chemical compositions of Ce/MMTs were determined, and the cerium of Ce/MMTs was confirmed to be present as trivalent cerium state. The d001 basal......
be calculated by geometrical calculations due to its irregular shape and internal porosity, it is measured in atomic level by the adsorption of inert gas method [13, 14]. The chemical composition... (IO4 and IO5). The geological map of Odisha and Chhattisgarh region are shown in Figure 1. 2.2 Chemical composition The chemical composition of all iron ore samples were determined by using X-ray......
without and with post-treatment were studied and the corrosion resistance was evalu-ated as well. The surface morphology was observed by scanning electron microscopy (SEM), and the chemical composition...Composition and corrosion resistance of cerium conversion films on 2195Al-Li alloy宋冬1,冯兴国1,孙明仁2,马欣新2,唐光泽21. School of Materials Science and Engineering, Harbin Institute of Technology2. National Key......
without and with post-treatment were studied and the corrosion resistance was evalu-ated as well. The surface morphology was observed by scanning electron microscopy (SEM), and the chemical composition...Composition and corrosion resistance of cerium conversion films on 2195Al-Li alloy宋冬1,冯兴国1,孙明仁2,马欣新2,唐光泽21. School of Materials Science and Engineering, Harbin Institute of Technology2. National Key......
by various methods Fig.7 BJH pore size distribution curves of Ni nanopowders 3.4 Chemical composition analysis There are four elements (nickel, nitrogen, silicon and oxygen... Table 4 Chemical composition analyses of Ni nanopowders(mass fraction, %) 4 CONCLUSIONS Ni nanopowders were successfully prepared by anodic arc discharged plasma with homemade......