| 金表面有机膦酸锆多层膜在不同支持电解质溶液中的稳定性 |
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| 引用本文： | 陈 煜,郭礼荣,康 希,刘训高,郑丽敏,夏兴华. 金表面有机膦酸锆多层膜在不同支持电解质溶液中的稳定性[J]. 无机化学学报, 2008, 24(12): 2065-2070 |
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| 作者姓名： | 陈 煜 郭礼荣 康 希 刘训高 郑丽敏 夏兴华 |
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| 作者单位： | 1. 南京大学化学化工学院,配位化学国家重点实验室,南京,210093
2. 南京大学化学化工学院,生命分析化学教育部重点实验室,南京,210093 |
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| 基金项目： | 国国家自然科学基金 |
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| 摘 要： | Zirconium 1,4-butylenediphosphonate[Zr(BDPA)] multilayers 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 voltammetry(CV) and X-ray photoelectron spectroscopy(XPS) measurements. The results show that the Zr(BDPA) multilayers are very stable in 0.2 mol·L-1 KCl, 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.
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| 关 键 词： | 有机膦酸锆； 多层膜； 稳定性； 磷酸盐缓冲溶液； 金电极 |
Stability of Zirconium Alkylbisphosphonate Multilayers on Gold Surfaces in Various Supporting Electrolyte Solutions |
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| CHEN Yu,GUO Li-Rong,KANG Xi,LIU Xun-Gao,ZHENG Li-Min and XIA Xing-Hua. Stability of Zirconium Alkylbisphosphonate Multilayers on Gold Surfaces in Various Supporting Electrolyte Solutions[J]. Chinese Journal of Inorganic Chemistry, 2008, 24(12): 2065-2070 |
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| Authors: | CHEN Yu GUO Li-Rong KANG Xi LIU Xun-Gao ZHENG Li-Min XIA Xing-Hua |
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| Affiliation: | State Key Laboratory of Coordination Chemistry, Coordination Chemistry Institute,School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093,State Key Laboratory of Coordination Chemistry, Coordination Chemistry Institute,School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093,State Key Laboratory of Coordination Chemistry, Coordination Chemistry Institute,School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093,State Key Laboratory of Coordination Chemistry, Coordination Chemistry Institute,School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093,State Key Laboratory of Coordination Chemistry, Coordination Chemistry Institute,School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093 and Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093 |
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| Abstract: | 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. |
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| Keywords: | zirconium alkylbisphosphonate multilayers films stability phosphate buffer solution gold electrode |
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