全部文献期刊学位论文会议报纸专利标准年鉴图书|学者科研项目
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作者:... Wendimagegn Mammo , V.J.T. Raju , Yonas Chebude
来源:[J].Bulletin of the Chemical Society of Ethiopia(IF 0.417), 2011, Vol.25 (2), pp.221DOAJ
摘要:A multidentate ligand, 3,4-bis(2-iminomethylphenol)-2,2’:5,2’’-terthiophene (L), has been synthesized by the condensation of 3,4-diamino-2,2’:5,2’’-terthiophene and salicylaldehyde. The ligand and Ni(II) and Zn(II) complexes were synthesized and characterized by IR...
作者:... V.J.T. Raju , Yonas Chebude , Negussie Retta
来源:[J].Bulletin of the Chemical Society of Ethiopia(IF 0.417), 2009, Vol.23 (2), pp.187DOAJ
摘要:4,6-bis-{1-[(4,6-dichloro-[1,3,5]triazine-2-yl)-hydrazone]-ethyl-benzene-1,3-diol, C16H12N10O2Cl4 (H2-BDTD), and Co(II), Ni(II), Cu(II) and Zn(II) complexes derived from its dibasic bis-chelating form (BDTD2- or L2-) were prepared in methanol-triethylamine and characterized by MS...
作者:Yonas Chebude , Carlos Márquez-Álvarez
来源:[J].Catalysis Today(IF 2.98), 2019Elsevier
摘要:Abstract(#br)Vernonia galamensis is a native weed of Ethiopia containing high concentration of naturally epoxidized oil (glyceryl trivernolate) in its seeds, which could be used as a potential substitute for currently used epoxy oils. Apart from an epoxy group, vernolic acid...
作者:... V.J.T. Raju , Yonas Chebude , Negussie Retta
来源:[J].Bulletin of the Chemical Society of Ethiopia(IF 0.417), 2009, Vol.23 (2), pp.187-196DOAJ
摘要:4,6-bis-{1-[(4,6-dichloro-[1,3,5]triazine-2-yl)-hydrazone]-ethyl-benzene-1,3-diol, C16H12N10O2Cl4 (H2-BDTD), and Co(II), Ni(II), Cu(II) and Zn(II) complexes derived from its dibasic bis-chelating form (BDTD2- or L2-) were prepared in methanol-triethylamine and characterized by MS...
作者:Yonas Chebude , Isabel Diaz
来源:[J].Journal of Porous Materials(IF 1.348), 2014, Vol.21 (5), pp.769-773Springer
摘要:Abstract(#br)One of the pioneering metal organic framework material, called MOF-2 and having the formula [Zn 2 (BDC) 2 ], still continues awakening interest amongst the scientific community in spite of its layered character. However, the synthesis methods are either experime...
作者:... Taju Sani , Yonas Chebude , Isabel Díaz
来源:[J].Microporous and Mesoporous Materials(IF 3.365), 2014, Vol.193, pp.93-102Elsevier
摘要:Abstract(#br)A preliminary inspection of natural zeolites samples in the north east of Ethiopia showed a large deposit of highly pure stilbite (hereafter called |CaNa|-STI). Rietveld refinement of synchrotron powder diffraction data ( C 2/ m , a = 13.62(1) Å, b = 18.2563(1...
作者:... Joaquín Pérez-Pariente , Yonas Chebude , Isabel Díaz
来源:[J].Separation and Purification Technology(IF 2.894), 2016, Vol.157, pp.241-248Elsevier
摘要:Abstract(#br)Fluoride contamination of drinking water is a serious problem in the Rift Valley region of Ethiopia. In this work, a nano-hydroxyapatite/stilbite (nHAST) composite was prepared based on locally available stilbite zeolites and its fluoride removal performance was...
作者:... Joaquín Pérez-Pariente , Yonas Chebude , Isabel Díaz
来源:[J].Applied Clay Science(IF 2.342), 2016, Vol.132-133, pp.485-490Elsevier
摘要:Abstract(#br)Synthesis of zeolite A using low grade Bombowha kaolin from Ethiopia has been carried out by two methods: the conventional hydrothermal synthesis and alkali fusion followed by hydrothermal treatment. In the synthesis process, the metakaolinization was achieved b...
作者:... Joaquín Pérez-Pariente , Yonas Chebude , Isabel Díaz
来源:[J].Microporous and Mesoporous Materials(IF 3.365), 2015, Vol.215, pp.29-36Elsevier
摘要:Abstract(#br)Zeolite A is synthesized using natural kaolin from Ethiopia. Raw kaolin and mechanically purified kaolin from Ansho, southern part of Ethiopia, have been surveyed. The starting kaolin and the final zeolite A samples were characterized by X- Ray Diffraction (XRD)...
作者:... Carlos Márquez-Álvarez , Yonas Chebude , Isabel Díaz
来源:[J].Applied Surface Science(IF 2.112), 2016, Vol.378, pp.473-478Elsevier
摘要:Abstract(#br)Zeolite Y was treated using ammonium acetate and ammonium fluoride sequentially. As a consequence the aluminum from the surface was selectively removed. Then, loading with TiO 2 (20 wt%) led to a final photocatalyst. The samples were characterized by X-ray diffr...

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