Single atom gold catalysts for low-temperature CO oxidation

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• 作者：Botao Qiao^a ; ^&dagger ; ; Jin-Xia Liang^b ; ^&dagger ; ; Aiqin Wang^a ; Jingyue Liu^c ; ^{Jingyue.Liu@asu.edu" class="auth_mail" title="E-mail the corresponding author} ; Tao Zhang^a ; ^{taozhang@dicp.ac.cn" class="auth_mail" title="E-mail the corresponding author}
• 关键词：Gold ; Single atom catalyst ; CO oxidation ; Stability ; Low temperature
• 刊名：Chinese Journal of Catalysis
• 出版年：2016
• 出版时间：October 2016
• 年：2016
• 卷：37
• 期：10
• 页码：1580-1586
• 全文大小：812 K

文摘

Low-temperature CO oxidation is important for both fundamental studies and practical applications. Supported gold catalysts are generally regarded as the most active catalysts for low-temperature CO oxidation. The active sites are traditionally believed to be Au nanoclusters or nanoparticles in the size range of 0.5–5 nm. Only in the last few years have single-atom Au catalysts been proved to be active for CO oxidation. Recent advances in both experimental and theoretical studies on single-atom Au catalysts unambiguously demonstrated that when dispersed on suitable oxide supports the Au single atoms can be extremely active for CO oxidation. In this mini-review, recent advances in the development of Au single-atom catalysts are discussed, with the aim of illustrating their unique catalytic features during CO oxidation.