期刊
CATALYSIS LETTERS
卷 148, 期 7, 页码 1904-1913出版社
SPRINGER
DOI: 10.1007/s10562-018-2400-x
关键词
Structured catalyst; Exposed facets; HCHO decomposition; a-AlOOH
资金
- Natural Science Foundation of Shanghai [16ZR1408200]
- Fundamental Research Funds for the Central Universities [222201817013]
Structured mesoporous anodic AlOOH (a-AlOOH) with dominant facets were developed and investigated in terms of the catalytic performance in formaldehyde oxidation. The activity of mesh-type a-AlOOH in the elimination of formaldehyde was compared with those of commercial AlOOH, a-gamma-Al2O3 (calcined AlOOH), commercial gamma-Al2O3, and AAO. The results show that a-AlOOH exhibit the highest catalytic activity toward the decomposition of gaseous formaldehyde. It was found that at the lower temperature range (< 50 A degrees C), CO2 were only detected over a-AlOOH, which indicated that formaldehyde oxidation reaction was carried out at low temperature over a-AlOOH but not just adsorption as reported. To clarify the phenomenon, XRD, SEM, HRTEM, XPS and TGA were performed, and the results show that a-AlOOH crystallized in the form of thin films could be due to the predominance of well-developed {031} {200} {002} facets containing exposed numerous reactive surface hydroxyls, which are preferred for the formaldehyde oxidation reaction. Furthermore, these hydroxyls enhanced the removal efficiency and contributed to the fast recovery ability and stability of the catalyst in water vapor environment. [GRAPHICS] .
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据