Additive Effect of Silver on the Catalytic Activity of TiO2-ZrO2 for the Selective Reduction of NO with Propene, 2-Propanol, and Acetone.
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- Haneda Masaaki
- National Institute of Materials and Chemical Research
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- Kintaichi Yoshiaki
- National Institute of Materials and Chemical Research
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- Inaba Megumu
- National Institute of Materials and Chemical Research
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- Hamada Hideaki
- National Institute of Materials and Chemical Research
書誌事項
- タイトル別名
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- Additive Effect of Silver on the Cataly
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The catalytic performance of metal-impregnated TiO2–ZrO2 binary metal oxide for the selective reduction of NO was investigated. The addition of silver to TiO2–ZrO2 catalyst caused a drastic enhancement of NO reduction activity with propene. This silver additive effect was accounted for by the assumption that silver promotes the reaction of NO2 with propene to form a partially oxidized hydrocarbon, which is the rate-determining step. However, the catalytic activity of silver-supported TiO2–ZrO2 was depressed by the presence of water vapor because of its inhibiting effect on the formation of the oxygenated intermediate. Oxygen-containing compounds such as 2-propanol and acetone were also found to be good reductants on silver-supported TiO2–ZrO2 in the absence of water vapor. Moreover, the presence of water vapor significantly enhanced NO reduction activity of silver-supported TiO2–ZrO2 with these reductants. It was presumed that water vapor accelerates the selective reduction of NO by suppressing the undesirable oxidation of the reductants by O2.
収録刊行物
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- Bulletin of the Chemical Society of Japan
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Bulletin of the Chemical Society of Japan 70 (2), 499-508, 1997
公益社団法人 日本化学会
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詳細情報 詳細情報について
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- CRID
- 1390282679098198016
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- NII論文ID
- 130004058089
- 10008916350
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- NII書誌ID
- AA00580132
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- ISSN
- 13480634
- 00092673
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- NDL書誌ID
- 4153684
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
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- 使用不可