无机化学学报
無機化學學報
무궤화학학보
JOURNAL OF INORGANIC CHEMISTRY
2008年
12期
2065-2070
,共6页
陈煜%郭礼荣%康希%刘训高%郑丽敏%夏兴华
陳煜%郭禮榮%康希%劉訓高%鄭麗敏%夏興華
진욱%곽례영%강희%류훈고%정려민%하흥화
有机膦酸锆%多层膜%稳定性%磷酸盐缓冲溶液%金电极
有機膦痠鋯%多層膜%穩定性%燐痠鹽緩遲溶液%金電極
유궤련산고%다층막%은정성%린산염완충용액%금전겁
zirconium alkylbisphosphonate%muhilayers films%stability%phosphate buffer solution%gold electrode
Zirconium 1,4-butylenediphosphonate[Zr(BDPA)]muhilayers on a 3-mercaptopropylphosphonate-coated gold electrode were prepared by the conventional layer-by-layer method.The stability of the Zr(BDPA)multilayers in different supporting electrolyte solutions was studied by cyclic vohammetry(CV)and X-ray photoelectron spectroscopy(XPS)measurements.The results show that the Zr(BDPA)muhilayers are very stable in 0.2 mol·L-1 KCI,0.2 mol·L-1 KNO3 and low concentration phosphate buffer solution(PBS)with low pH values(c≤0.05 mol·L-1,pH≤6.8).While in high concentration 0.2 mol·L-1 PBS(pH=5.2～7.4),the Zr(BDPA)multilayers will be partially desorbed within two days,possibly due to the formation of more stable zirconium phosphate.
