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首页> 外文期刊>RSC Advances >Mesoporous PdO/Pt/Al2O3 film produced by reverse-micro-emulsion and its application for methane micro-sensor
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Mesoporous PdO/Pt/Al2O3 film produced by reverse-micro-emulsion and its application for methane micro-sensor

机译：反向微乳液制备的介孔PdO / Pt / Al2O3薄膜及其在甲烷微传感器中的应用

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摘要

A simple, versatile and effective reverse micro-emulsion and pyrolysis protocol was presented for in situ growth of a PdO/Pt loaded mesoporous Al2O3 film. Noble metal (oxide) nanoparticles with a narrow size distribution were homogeneously dispersed throughout the Al2O3 support. Most importantly, the obtained worm-like catalyst network has both a high specific area and highly crystalline, which is favorable for application in methane catalytic combustion. When deposed on a micro-heater and used as a sensor element, the resulting micro-sensor demonstrated a short T-90 response time, relatively high signal output, high enough signaloise ratio and extraordinarily low power consumption for methane detection.
机译：提出了一种简单，通用和有效的反向微乳液和热解方案，用于原位生长PdO / Pt介孔Al2O3薄膜。具有窄尺寸分布的贵金属（氧化物）纳米颗粒均匀地分散在整个Al2O3载体中。最重要的是，所获得的蠕虫状催化剂网络具有高比表面积和高结晶度，这有利于在甲烷催化燃烧中的应用。当放置在微加热器上并用作传感器元件时，所得的微传感器表现出较短的T-90响应时间，相对较高的信号输出，足够高的信噪比和非常低的甲烷检测功耗。

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