2016年
Earth-Abundant and Durable Nanoporous Catalyst for Exhaust-Gas Conversion
Advanced Functional Materials
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- 巻
- 26
- 号
- 10
- 開始ページ
- 1609
- 終了ページ
- 1616
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1002/ADFM.201504811
- 出版者・発行元
- WILEY-V C H VERLAG GMBH
Precious metals (Pt and Pd) and rare earth elements (Ce in the form of CeO2) are typical materials for heterogeneous exhaust-gas catalysts in automotive systems. However, their limited resources and high market-driven prices are principal issues in realizing the path toward a more sustainable society. In this regard, herein, a nanoporous NiCuMnO catalyst, which is both abundant and durable, is synthesized by one-step free dealloying. The catalyst thus developed exhibits catalytic activity and durability for NO reduction and CO oxidation. Microstructure characterization indicates a distinct structural feature: catalytically active Cu/CuO regions are tangled with a stable nanoporous NiMnO network after activation. The results obtained by in situ transmission electron microscopy during NO reduction clearly capture the unique reaction-induced self-transformation of the nanostructure. This fi nding can possibly pave the way for the design of new catalysts for the conversion of exhaust gas based on the element strategy.
- リンク情報
- ID情報
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- DOI : 10.1002/ADFM.201504811
- ISSN : 1616-301X
- eISSN : 1616-3028
- ORCIDのPut Code : 83105289
- Web of Science ID : WOS:000372309000012