在多壁碳纳米管负载的Pt-RuOxHy样品中引入氧化钨(WOm),能有效抑制样品中水合氧化钌(RuOxHy)在酸性电解质溶液中的溶解.在扩展电势(-0.20~0.96 V VS SCE)的电化学预处理过程中,RuOxHy的溶解程度从Pt-RuOxHy中的70%降至Pt-RuOxHy-WOm中的15%.计时电流曲线测试结果表明,与窄电势区间(-0.20~0.46V vs SCE)预处理的钉物种没有流失的样品相比,经扩展电势区间预处理的Pt-RuOxHy-WOm样品上甲醇电氧化反应的活性没有下降,而Pt-RuOxHy样品的活性则下降50%.
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