王梦雪;王丽;王颖;姜秋伶;丁浩翔;

• 1:宁波大学材料科学与化学工程学院

摘要(Abstract)：

以三嵌段共聚物PEG-PPG-PEG (P123,M=5800)为软模板合成了6个多级孔钙钛矿型氧化物La_(0.9)Ce_(0.1)Fe_(1-x)Co_xO_3(x=0, 0.2, 0.4, 0.6, 0.8, 1.0),用XRD, SEM, BET, XPS对其进行表征,并测试了样品对CO+NO的催化活性。结果表明:在B位进行Co掺杂,催化剂的形貌及物化特性发生了显著变化。Co掺杂量在x=0.2时,样品La_(0.9)Ce_(0.1)Fe_(0.8)Co_(0.2)O_3的比表面积、孔容和表面B位金属含量最大,催化活性最佳,在反应温度为276, 242℃时分别对CO, NO的转化率达到90%。

关键词(KeyWords)： 钙钛矿;软模板法;P123;CO+NO;稀土

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目(21607086);; 浙江省公益技术研究社会发展项目(2016C33024);; 宁波市科技计划项目(2017C50031,2017A610061,2016C51025)资助

作者(Author): 王梦雪;王丽;王颖;姜秋伶;丁浩翔;

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DOI:

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