Solid-solution alloy nanoparticles of a combination of immiscible Au and Ru with a large gap of reduction potential and their enhanced oxygen evolution reaction performance
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Au and Ru are elements that are immiscible in the bulk state and have the largest gap in reduction potential among noble metals. Here, for the first time, AuxRu₁₋x solid-solution alloy nanoparticles (NPs) were successfully synthesized over the whole composition range through a chemical reduction method. Powder X-ray diffraction and scanning transmission electron microscopy coupled with energy-dispersive X-ray spectroscopy showed that Au and Ru atoms are homogeneously mixed at the atomic level. We investigated the catalytic performance of AuxRu₁₋x NPs for the oxygen evolution reaction, for which Ru is well known to be one of the best monometallic catalysts, and we found that even alloying with a small amount of Au could significantly enhance the catalytic performance.
収録刊行物
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- Chemical Science
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Chemical Science 10 (19), 5133-5137, 2019-05-21
Royal Society of Chemistry (RSC)
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詳細情報 詳細情報について
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- CRID
- 1050282677587824256
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- NII論文ID
- 120006645307
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- NII書誌ID
- AA12555653
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- ISSN
- 20416520
- 20416539
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- HANDLE
- 2433/241781
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- 本文言語コード
- en
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- 資料種別
- journal article
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- データソース種別
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