Effect of Cu additives on the performance of a cobalt substituted ceria (Ce0.90Co0.10O2-δ) catalyst in total and preferential CO oxidation
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- 作者：Thandanani Cwele ; N. Mahadevaiah ; Sooboo Singh ; Holger B. Friedrich ; friedric@ukzn.ac.za" class="auth_mail" title="E-mail the corresponding author
- 关键词：CO&ndash ; PROX ; CO oxidation ; Ceria ; Solid-solution ; Cu&ndash ; Co-containing catalysts
- 刊名：Applied Catalysis B: Environmental
- 出版年：2016
- 出版时间：March 2016
- 年：2016
- 卷：182
- 期：Complete
- 页码：1-14
- 全文大小：4074 K
文摘
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Nanocrystalline Ce0.90Co0.10O2–δ and Ce0.90-xCuxCo0.10O2–δ catalysts synthesized.
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Insertion of Cu into Ce0.90Co0.10O2–δ enhances catalytic performance and stability.
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H2 and CO oxidation over Ce0.90Co0.10O2–δ catalyst may occur on the same sites.
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Over Cu containing catalysts H2 and CO oxidation occur on independent sites.
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The degree of deactivation by H2O and CO2 decreases with increasing the Cu content.