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Enhanced Activity of Ceria Loaded Sb-V2O5/TiO2 Catalysts for NO Reduction with Ammonia
- Lee, Kyung Ju;
- Maqbool, Muhammad Salman;
- Kumar, Pullur Anil;
- Song, Kwang Ho;
- Ha, Heon Phil
WEB OF SCIENCE
12SCOPUS
14초록
The effect of Ce-loading over Sb-V2O5/TiO2 catalysts was investigated for the removal of NOx by NH3. In order to understand the influence of Ce-loading over Sb-V2O5/TiO2, NH3-temperature programmed desorption, H-2-temperature programmed reduction, X-ray photoelectron spectroscopy (XPS) and diffused reflectance infrared fourier transformed spectroscopy (DRIFTS) were carried out. The 10 % Ce-loaded Sb-V2O5/TiO2 catalyst exhibited superior activity than commercial V2O5-WO3-TiO2 under 6 % H2O and 800 ppm SO2. The XPS results indicated the presence of Ce3+ species. The amount of Bronsted acid sites significantly increased as a result of Ce-loading. The DRIFT spectrum of Sb-V2O5/TiO2 catalyst indicated a peak at 1,363 cm(-1), which corresponded to intermediates of ammonia oxidation species at 350 A degrees C. Experimental results suggest that high NOx conversion and N-2 selectivity of 10 % Ce-loaded Sb-V2O5/TiO2 was attributed to enhanced acidity and reducibility.
키워드
- 제목
- Enhanced Activity of Ceria Loaded Sb-V2O5/TiO2 Catalysts for NO Reduction with Ammonia
- 저자
- Lee, Kyung Ju; Maqbool, Muhammad Salman; Kumar, Pullur Anil; Song, Kwang Ho; Ha, Heon Phil
- 발행일
- 2013-10
- 유형
- Article
- 권
- 143
- 호
- 10
- 페이지
- 988 ~ 995
- 언어
- ENG
- 출판사
- SPRINGER
- 발행국가
- 미국
- 분량
- 8 페이지
- ISSN
- E 1572-879X
P 1011-372X