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1093711325½ð³æ (СÓÐÃûÆø)
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Tuning the shape of ceria nanomaterials for catalytic applications
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consist of low©\coordinated atoms that are located at the defect sites such as terraces, edges, kinks, or vacancies.A typical ex©\ ample is the unique behavior of gold nanoparticles as demon©\ strated by the pioneering work of Haruta [5¨C9]. Gold has long been viewed as catalytically inert; however, it becomes highly active for low©\temperature CO oxidation when the size of the Au particles ranges 2¨C5 nm [5,6]. This so©\called size effect has been interpreted in terms of the variation in geometric and/or electronic properties of gold nanoparticles that strongly affect the adsorption and activation of CO and molecular oxygen ÓйØÄÉÃ×Ñõ»¯îæ´ß»¯¼ÁµÄ¡® |
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1093711325(RXMCDM´ú·¢): ½ð±Ò+5 2015-07-14 09:02:00
1093711325(RXMCDM´ú·¢): ½ð±Ò+5 2015-07-14 09:02:00
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