Catalytic activity of vanadium oxide catalysts prepared by electrodeposition for the selective catalytic reduction of nitrogen oxides with ammonia
- Authors
- Kim, Su Hyo; Cha, Jin Sun; Jeon, Yoo Sang; Park, Bum Chul; Shin, Min-Chul; Song, Jun-Kwang; Kim, Young Keun
- Issue Date
- 8월-2016
- Publisher
- SPRINGER
- Keywords
- Vanadium oxide; Nanowire; Catalyst; Electrodeposition; Selective catalytic reduction; Nitrogen oxide
- Citation
- REACTION KINETICS MECHANISMS AND CATALYSIS, v.118, no.2, pp.633 - 641
- Indexed
- SCIE
SCOPUS
- Journal Title
- REACTION KINETICS MECHANISMS AND CATALYSIS
- Volume
- 118
- Number
- 2
- Start Page
- 633
- End Page
- 641
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/87963
- DOI
- 10.1007/s11144-016-1010-0
- ISSN
- 1878-5190
- Abstract
- A facile synthesis of nanostructured vanadium oxide catalysts grown inside a honeycomb ceramic filter by electrodeposition without heat treatment is reported. The prepared catalysts are investigated for a selective catalytic reduction (SCR) of nitrogen oxide (NOx) with ammonia (NH3) in the temperature ranges from 250 to 450 A degrees C. The SCR test results indicate that the NOx removal efficiency of the as-deposited sample is comparable to that of the sample heat treated at 600 A degrees C as well as that of the sample prepared by conventional wash coating method. The nanostructured catalysts show similar NOx removal efficiencies after several recycles. Both polycrystalline and amorphous phases co-exist in the electrodeposited V-oxide catalysts confirmed by X-ray diffraction and selective area electron diffraction. The V-oxide catalysts show stronger V=O bond peaks and higher ratio of V4+/V5+ and O-alpha/O-beta on their surfaces as characterized by Raman spectroscopy and X-ray photoelectron spectroscopy.
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Collections - College of Engineering > Department of Materials Science and Engineering > 1. Journal Articles
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