ADSORPTION OF ORDERED ZIRCONIUM PHOSPHONATE MULTILAYER FILMS ON SILICON AND GOLD SURFACES

ADSORPTION OF ORDERED ZIRCONIUM PHOSPHONATE MULTILAYER FILMS ON SILICON AND GOLD SURFACES
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DOI:
10.1021/j100320a040
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发表时间:
1988-05-05
影响因子:
--
通讯作者:
MALLOUK, TE
MALLOUK, TE
中科院分区:
其他
文献类型:
--
作者:
LEE, H;KEPLEY, LJ;MALLOUK, TE

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结论。我们已经证明,Y沸石可以通过离子交换和空间效应在电极表面组织电活性分子。阳离子卟啉分子以单层的数量吸附在沸石上,有效地封闭了沸石中包含的紫精分子的快速交换。这种微结构导致了电化学电荷捕获反应,就像在大结构聚合物薄膜器件中观察到的那样。这些分子组装体在人工光合作用中的应用目前正在探索中。我们感谢Jeffrey Cook运行XPS和AES谱,并感谢James Wallin和Ben Shays博士运行13C核磁共振谱。这项研究得到了研究公司和罗伯特·A·韦尔奇基金会的资助。
Conclusions. We have demonstrated that zeolite Y can be used to organize, via ion exchange and steric effects, electroactive molecules at an electrode surface. Cationic porphyrin molecules adsorb onto the zeolite in monolayer quantities, effectively sealing it against rapid exchange of viologen molecules contained within. This microstructuring gives rise to electrochemical charge trapping reactions, like those observed with macrostructured polymer film devices. The application of these molecular assemblies to artificial photosynthesis is presently being explored.Acknowledgment. We thank Jeffrey Cook for running the XPS and AES spectra and James Wallin and Dr. Ben Shoulders for the 13C NMR spectra. This research was supported by grants from Research Corp. and the Robert A. Welch Foundation.