A pathway of NO–H2–O2 reaction over Pt/ZrO2 through ammonium nitrate
A pathway of NO–H2–O2 reaction over Pt/ZrO2 through ammonium nitrate
复制标题
Pt/ZrO2 上通过硝酸铵发生 NO-H2-O2 反应的途径
DOI：
10.1007/s11244-007-0165-3
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发表时间：
2007
影响因子：
3.6
通讯作者：
A. Obuchi
中科院分区：
文献类型：
--
作者：
T. Nanba;K. Sugawara;S. Masukawa;J. Uchisawa;A. Obuchi
考察了Pt/ZrO 2催化剂性能与NO-H2-O2反应产物选择性的关系。从活性测试和表征的结果，如CO吸附和TEM，具有高的Pt分散的催化剂表现出高的NH3选择性，和那些显着团聚的Pt颗粒通过高温焙烧表现出较高的N2形成。同时考察了还原和氧化预处理的效果。还原的Pt位点促进了NH3的形成。预处理条件不仅影响反应过程中积累的含氮物种的数量，而且还影响硝酸铵的分解，这被怀疑是一种积累的物种。硝酸铵的分解过程参与NO-H2-O2反应。
The relationship between the product selectivity for the NO–H2–O2reaction and characteristics of the catalyst, Pt/ZrO2, was investigated. From the results of activity tests and characterizations, such as CO adsorption and TEM, the catalysts with high Pt dispersions showed high NH3selectivities, and those with significantly agglomerated Pt particles by high temperature calcination exhibited higher N2formation. The effect of the reduction and oxidation pretreatment was also investigated. The reduced Pt sites promoted the formation of NH3. The pretreatment condition influenced not only on the amount of accumulated nitrogen-containing species during the reaction but also on the decomposition of ammonium nitrate, which was suspected to be an accumulated species. The decomposition of ammonium nitrate would be involved in the NO–H2–O2reaction.
影响因子：
7.3
作者：
M. Machida;S. Ikeda
通讯作者：
M. Machida;S. Ikeda