欢迎登录材料期刊网

材料期刊网

高级检索

研究了不同水热碱性条件下(糖)醇对Cu2+的还原,通过控制不同水热条件及添加不同种类和质量的(糖)醇,借助XRD和SEM分析,得到了不同的产物及形貌.当不加任何(糖)醇时,产物为CuO,其形貌随[OH-]/[Cu2+]增大而由薄带和球形颗粒向薄片转变;当在不同[OH-]/[Cu2+]的体系中分别添加不同种类和质量的(糖)醇时,可以得到具有多种形貌的Gu2O和线状、棒状、立方六角状、颗粒状等形貌的金属铜.本研究可得结论是,水热条件下,[OH-]/[Cu2+]值可以决定还原产物形貌,(糖)醇的加入可以与Cu2+或其络合物发生氧化还原反应,而且加入的质量和种类可以决定产物的形貌.研究结果为新型金属和金属氧化物材料的制备提供了新思路.

参考文献

[1] BYRAPPA K;YOSHIMURA M.Handbook of hydrothermal technology-technology for crystal growth and materials processing[M].Toronto,William Andrew Publishing,2001:531-535.
[2] Sun XH.;Sammynaiken R.;Naftel SJ.;Tang YH.;Zhang P.;Kim PS.;Sham TK. Fan XH.;Zhang YF.;Lee CS.;Lee ST.;Wong NB.;Hu YF.;Tan KH. .Ag nanostructures on a silicon nanowire template: Preparation and X-ray absorption fine structure study at the SiK-edge and Ag L-3,L-2-edge[J].Chemistry of Materials,2002(6):2519-2526.
[3] CHOI H C;SHIM M;BANGSARUNTIP S et al.Spontaneous reduction of metal ions on the sidewalls of carbon nanotubes[J].Journal of the American Chemical Society,2002,124:9058-9059.
[4] Li Q.;Wang CR. .Cu nanostructures formed via redox reaction of Zn nanowire and Cu2+ containing solutions[J].Chemical Physics Letters,2003(5-6):525-531.
[5] Zhi-Zhan Chen;Er-Wei Shi;Yan-Qing Zheng;Wen-Jun Li;Bing Xiao;Ji-Yong Zhuang .Growth of hex-pod-like Cu_2O whisker under hydrothermal conditions[J].Journal of Crystal Growth,2003(1/2):294-300.
[6] Prabhakar R;Siegbahn PE;Minaev BF .A theoretical study of the dioxygen activation by glucose oxidase and copper amine oxidase.[J].Biochimica et biophysica acta,2003(1/2):173-178.
[7] Kinrade,SD;Del,Nin-JW;Schach,AS;Sloan,TA;Wilson,KL;Knight,CT .Stable five- and six-coordinated silicate anions in aqueous solution.[J].Science,1999(5433):1542-1545.
[8] YAN Y;KIM J;STUCKY G .Preparation of noble metal nanowires using hexagonal mesoporous silica SBA-15[J].Chemistry of Materials,2000,12:2068-2069.
[9] Che G.;Martin CR.;Fisher ER.;Ruoff RS.;Lakshmi BB. .Chemical vapor deposition based synthesis of carbon nanotubes and nanofibers using a template method[J].Chemistry of Materials,1998(1):260-267.
[10] Kyusoon Shin;K. Amanda Leach;James T. Goldbach;Dong Ha Kim;Jae Young Jho;Mark Tuominen;Craig J. Hawker;Thomas P. Russell .A Simple Route to Metal Nanodots and Nanoporous Metal Films[J].Nano letters,2002(9):933-936.
[11] Linfeng Gou;Catherine J.Murphy .Controlling the size of Cu_2O nanocubes from 200 to 25 nm[J].Journal of Materials Chemistry: An Interdisciplinary Journal dealing with Synthesis, Structures, Properties and Applications of Materials, Particulary Those Associated with Advanced Technology,2004(4):735-738.
[12] Debao Wang;Maosong Mo;Dabin Yu;Liqiang Xu;Fanqing Li;Yitai Qian .Large-Scale Growth and Shape Evolution of Cu_2O Cubes[J].Crystal growth & design,2003(5):717-720.
[13] Wenzhong Wang;Oomman K. Varghese;Chuanmin Ruan .Synthesis of CuO and Cu_2O crystalline nanowires using Cu(OH)_2 nanowire templates[J].Journal of Materials Research,2003(12):2756-2759.
上一张 下一张
上一张 下一张
计量
  • 下载量()
  • 访问量()
文章评分
  • 您的评分:
  • 1
    0%
  • 2
    0%
  • 3
    0%
  • 4
    0%
  • 5
    0%