Innovation of NO direct decomposition catalyst with designed NO adsorption and reaction sites

研究了Ba分散度和晶体结构对表面呈碱性的负载型Ba催化剂直接分解NO性能的影响。结果表明，高分散的Ba物种是NO分解反应的催化活性中心。高分散的Ba物种也能有效地促进NO2-物种的生成.我们提出了载体氧化物表面碱性对获得高分散Ba物种的重要性，从而导致开发具有合适NOx吸附和反应位点的高活性NO分解催化剂。

Effect of Ba dispersion and crystal structure on the catalytic performance of supported Ba catalyst, which shows surface basicity, for direct decomposition of NO was investigated. It was found that highly dispersed Ba species are catalytically active sites for NO decomposition reaction. Highly dispersed Ba species were also found to promote effectively the formation of NO_ 2- species as intermediate. We proposed the importance of surface basicity of support oxide to obtain highly dispersed Ba species, leading to development of highly active NO decomposition catalyst consisting suitable NO_x adsorption and reaction sites.