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首页> 外文期刊>Electroanalysis >Electrochemical detection for gaseous vinyl chloride with a sputtered Au/porous alumina substrate/Pt electrode assembly
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Electrochemical detection for gaseous vinyl chloride with a sputtered Au/porous alumina substrate/Pt electrode assembly

机译：溅射金/多孔氧化铝基质/铂电极组件对气态氯乙烯的电化学检测

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摘要

A detector with a porous alumina substrate has been developed to monitor vinyl chloride gas in the concentration range of 0.5-4% at room temperature successfully. Several operating variables, including type of supporting electrolyte, applied potential, concentration of supporting electrolyte, and porosity of alumina substrate were investigated to find the highest sensitivity for vinyl chloride sensing. Compared with tetrabutylammonium tetrafluoborate, higher sensitivities were obtained when tetrabutylammonium perchlorate was used as the supporting electrolyte. The highest sensitivity of 70.9 muA%(-1) was obtained at - 2.1 V (vs. Ag/Ag+) in 50% toluene/50% DMF electrolyte containing 10 mM Bu4NClO4 supporting electrolyte. The sensing current and the sensitivity for vinyl chloride increased significantly with the porosity of the porous alumina substrate. [References: 20]
机译：已经开发出具有多孔氧化铝基底的检测器，以成功地在室温下监测浓度范围为0.5-4％的氯乙烯气体。研究了几种操作变量，包括支持电解质的类型，施加的电势，支持电解质的浓度和氧化铝基材的孔隙率，以找到氯乙烯感测的最高灵敏度。与四氟硼酸四丁基铵相比，当高氯酸四丁基铵用作支持电解质时，可获得更高的灵敏度。在含有10 mM Bu4NClO4支持电解质的50％甲苯/ 50％DMF电解质中，在-2.1 V（vs. Ag / Ag +）下获得70.9μA％（-1）的最高灵敏度。氯乙烯的感测电流和灵敏度随多孔氧化铝基材的孔隙率而显着增加。 [参考：20]

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