Pd/Ce0.6Zr0.4O2/Al2O3 as advanced materials for three-way catalysts
Pd/Ce0.6Zr0.4O2/Al2O3 as advanced materials for three-way catalysts
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DOI：
10.1016/s0926-3373(99)00102-2
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发表时间：
2000-02
影响因子：
22.1
通讯作者：
R. di Monte;P. Fornasiero;J. Kašpar;P. Rumori;G. Gubitosa;M. Graziani
中科院分区：
文献类型：
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作者：
R. di Monte;P. Fornasiero;J. Kašpar;P. Rumori;G. Gubitosa;M. Graziani
研究了负载在Al2O3上的负载Pd的Ce0.6Zr0.4O2固溶体作为CO还原NO的催化剂。重点关注Ce0.6Zr0.4O2和Pd分散体对催化活性的作用。该系统在 500K 以下表现出非常高的活性，这几乎与 Pd 分散无关。高活性归因于Ce0.6Zr0.4O2对NO转化的促进作用。对高温处理影响的研究揭示了 Ce0.6Zr0.4O2/Al2O3 体系中 Ce0.6Zr0.4O2 和 Al2O3 的热稳定性。
Pd-loaded Ce0.6Zr0.4O2solid solutions supported on Al2O3are investigated as catalysts for the reduction of NO by CO. The attention is focused on the role of the Ce0.6Zr0.4O2and of the Pd dispersion on the catalytic activity. The system shows a very high activity below 500K, which is almost independent on the Pd dispersion. The high activity is attributed to a promoting effect of the Ce0.6Zr0.4O2on the NO conversion. Investigation of the influence of high temperature treatments disclosed a thermal stabilisation of both Ce0.6Zr0.4O2and Al2O3in the Ce0.6Zr0.4O2/Al2O3system.