材料研究学报  2007, Vol. 21 Issue (2): 205-208

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谷胱甘肽和三氧化钨表面微观结构的AFM表征

韩贤武　 陈小安　 杨学恒　 胡澎江

韩贤武; 陈小安; 杨学恒; 胡澎江 . 谷胱甘肽和三氧化钨表面微观结构的AFM表征[J]. 材料研究学报, 2007, 21(2): 205-208.

摘要 参考文献 相关文章 Metrics 全文: PDF(606 KB)   摘要: 用AFM表征了络合锌的谷胱甘肽与三氧化钨溶胶掺铂晶化薄膜的表面分子结构,结果表明:络合锌的谷胱甘肽的分子为七连环状结构,七连环上的两个离子或离子基团与两条长链相连,一个离子或离子基团与一条短链相连;这解释了谷胱甘肽与Zn2+、Fe3+等过渡金属离子络合并使其被螯离,消除了其氧化性,从而提高了谷胱甘肽的抗氧化性.三氧化钨溶胶掺铂薄膜经460℃热处理后晶化,其元胞为正六面体,内含一个WO6八面体,氧离子位居六个面心,钨离子处于体心,自然生长面为002面,晶格常数为(0.75±0.05)nm,氧离子的间距为(0.55±0.05)nm.解释了谷胱甘肽与Zn2+、Fe3+等过渡金属离子络合并使其被螯离,从而消除了其氧化性,以及掺杂一定含量的铂后改善了三氧化钨溶胶的氢敏特性的机理. Key words： 收稿日期: 1900-01-01      服务 把本文推荐给朋友 加入引用管理器 E-mail Alert RSS 作者相关文章 韩贤武 陈小安 杨学恒 胡澎江 44.8K 链接本文: https://www.cjmr.org/CN/Y2007/V21/I2/205 1 J.P.Boisvert,J.Persello,J.C.Castaing,B.Cabane,Dis- persion of alumina-coated TiO2 particles by adsorp- tion of sodium polyacrylate,Colloids and Surfaces,178, 187(2001) 2 M.Egashira,Y.Utsunomiya,N.Yoshimoto,M.Morita,Ef- fects of the surface treatment of the A1203 filler on the lithium electrode/solid polymer electrolyte interface prop- erties,Electrochimica Acta,52,1082(2006) 3 C.Aksel,The role of fine alumina and mullite particles on the thermomechanical behaviour of alumina-mullite re- fractory materials,Materials Letters,57,708(2002) 4 M.M.Seabaugh,I.H.Kerscht,G.L.Messing,Texture de- velopment by templated grain growth in liquid-phase- sintered a-alumina,Journal of the American Ceramic So- ciety,80(5),1181(1997) 5 HE Jia,LIU Wei,ZHU Lihui,HUANG Qingwei,Phase transformation behaviors of aluminum hydroxides to al- pha alumina in air and molten salt,Journal of Materials Science,40(2),3259(2005) 6 WANG Buguo,TIAN Mingyuan,SHI Erwei,Morphology ofα-Al_2O_3 crytallines under hydrothermal conditions, Chinese Science Bulletin,42(24),2663(1997) (王步国，田明原，施尔畏，水热条件下直接制备α-Al_2O_3微晶形态特征，科学通报，42(24)，2663(1997)) 7 S.Kenji,S.Kunio,Production of flaky metallic oxide, Japan patent,No.61295208(1986) 8 N.Ashen,Method of making crystalline alumina lapping powder,USA patent,No.3121623(1964) 9 S.Hashimoto,A.Yamaguchi,Formation of porous aggre- gations composed of Al_2O_3 platelets using potassium sul- fate flux,Journal of the European Ceramic Society,19, 335(1999) 10 X.H.Jin,L.Gao,Size control ofα-Al_2O_3 platelets syn- thesized in molten Na_2SO_4 flux,Journal of the American Ceramic Society,87(4),533(2004) 11 WANG Huanying,SONG Xiuqin,Discussion on the influ- ence of kinds additives on nanometer ZrO_2 powder,Jour- nal of Synthetic Crystals,34(5),875(2005) (王焕英，宋秀芹，不同添加剂对纳米氧化锫粉体影响的探讨，人工晶体学报，34(5)，875(2005)) 12 ZHOU Jianxin,SHEN Xiangqian,JING Maoxiang,Fac- tors having effects on preparation of a-alumina platelets, Mining and Metallurgical Engineering,25(2),73(2005) (周建新，沈湘黔，景茂祥，板状氧化铝制备过程中影响因素的研究，矿冶工程，25(2)，73(2005)) 13 XINTIAN Shengjiu,CHEN Mingshou,A method for preparing flaky alumina and pearly pigment, China Patent,No.1150165A(1997) (新田胜久，陈明寿，薄片状氧化铝和珠光颜料及其制备方法，中国专利，CN1150165A(1997)). No related articles found! Viewed Full text Abstract Cited   Shared      Discussed