RuO2纳米片抑制PtRu/C和Pt/C对CO的吸附

ECS Electrochemistry Letters Pub Date : 2015-01-01 DOI:10.1149/2.0011505EEL

Daisuke Takimoto, T. Ohnishi, W. Sugimoto

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引用次数: 12

摘要

在CO/H2浓度为300 ppm的条件下，研究了RuO2纳米片作为氢氧化反应的促进剂。在300 ppm CO/H2条件下，RuO2纳米片改性PtRu/C催化剂(RuO2:Pt:Ru = 0.5:1:1(摩尔比))的氢氧化电流比Pt1Ru1/C和Pt2Ru3/C表现出更高的CO耐受性。基于流体动力伏安法、计时伏安法和CO溶出伏安法，建议添加RuO2纳米片抑制CO在催化剂表面的吸附，从而提高CO耐受性。©作者2015。由ECS出版。这是一篇基于知识共享署名4.0许可(CC BY, http://creativecommons.org/licenses/by/4.0/)的开放获取文章，该许可允许在任何媒体上不受限制地重复使用该作品，前提是正确引用原始作品。[DOI: 10.1149/2.0011505]版权所有。

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Suppression of CO Adsorption on PtRu/C and Pt/C with RuO2 Nanosheets

RuO2 nanosheets were studied as a promotor for the hydrogen oxidation reaction in the presence of 300 ppm CO/H2. The hydrogen oxidation current in 300 ppm CO/H2 for RuO2 nanosheet modified PtRu/C catalyst (RuO2:Pt:Ru = 0.5:1:1 (molar ratio)) exhibited higher CO tolerance than Pt1Ru1/C and Pt2Ru3/C. Based on hydrodynamic voltammetry, chronoamperometry and CO stripping voltammetry, the addition of RuO2 nanosheets is suggested to suppress CO adsorption on the catalyst surface, resulting in an improvement in CO tolerance. © The Author(s) 2015. Published by ECS. This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 License (CC BY, http://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse of the work in any medium, provided the original work is properly cited. [DOI: 10.1149/2.0011505eel] All rights reserved.

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ECS Electrochemistry Letters ELECTROCHEMISTRY-MATERIALS SCIENCE, MULTIDISCIPLINARY

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