成果報告書詳細
管理番号20130000000827
タイトル*平成24年度中間年報 希少金属代替材料開発プロジェクト 排ガス浄化向け白金族使用量低減技術開発及び代替材料開発 遷移元素による白金族代替技術及び白金族の凝集抑制技術を活用した白金族低減技術の開発
公開日2013/10/18
報告書年度2012 - 2012
委託先名日産自動車株式会社 国立大学法人電気通信大学 国立大学法人名古屋大学 学校法人早稲田大学
プロジェクト番号P08023
部署名電子・材料・ナノテクノロジー部
和文要約
英文要約1)Alternative Technology for Platinum Group Materials
It is important that the electronic states of iron in the reduced state of iron oxide. On the oxygen storage material(such as cerium oxide), are supported by highly dispersed iron oxide, iron is reduced, we found that the redox cycle is accelerated. Active sites of the nano-sized iron compounds are used in high temperature conditions, the reduced activity easily with coarse aggregate. As a result developed a preparation method of iron compound arranged between nano-sized particles of an oxygen storage material, was able to maintain the fine particles of several nanometers or more engine exhaust after 800C degree. Currently, in the actual evaluation. In addition, I found that in the combination study of platinum group and composite oxide of Fe, there is a valid use in reaction activity.

2) Accelerating plasma catalysis
Raises the plasma in the reaction tube was coated with a catalyst such as Pt-Ba / alumina, has confirmed the effect of promoting the catalytic reaction. NOx purification reaction is normally required temperatures higher than several hundred degrees, by the addition of plasma, to show a high conversion rate was found to even 150 ℃. We found that addition, the NOx conversion is possible does not have to be rich atmosphere. In order to clarify the design guidelines of the catalyst material effective for plasma-catalytic reaction, and the reaction was carried out mechanism analysis.
In addition, I started the research of addition method that assumes to be incorporated in a vehicle such as a plasma method of adding to the honeycomb carrier by gliding arc method

3)DPF simulation technology improves responsiveness
DPF X-ray CT data obtained by the internal structure that created the computer code used for simulation and analysis of the activation energy of oxidation. DPF This reaction process has become possible to analyze the internal gas flow and deposition Diesel particulate matter. We started the trial of catalyst coating to DPF. The integration of the catalytic function and catalysis improve DPF, a technique for coating the catalyst on the DPF while maintaining a low pressure loss characteristics are important. Formulated a catalyst coating various measures, was initiated to verify the effect.

4)Integrated catalytic
Loading of the catalyst to consider how to DPF. Slurried catalyst that is currently being done in the mainstream, then, in the coating method applied to the DPF and the slurry or dipping into the slurry DPF, in order to control the position loading of catalyst in the DPF is difficult, the law courts new has developed a draft policy. During the verification.
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