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Facile Fabrication of Ce/V‐Modified Multi‐Channel TiO 2 Nanotubes and Their Enhanced Selective Catalytic Reduction Performance
Author(s) -
Huang Xiaosheng,
Zhang Guodong,
Tang Zhicheng
Publication year - 2020
Publication title -
chemistry – an asian journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.18
H-Index - 106
eISSN - 1861-471X
pISSN - 1861-4728
DOI - 10.1002/asia.201901535
Subject(s) - materials science , catalysis , electrospinning , chemical engineering , fabrication , dispersion (optics) , nanotechnology , nanofiber , adsorption , selective catalytic reduction , composite material , chemistry , polymer , organic chemistry , optics , medicine , alternative medicine , physics , pathology , engineering
To optimize one‐dimensional (1D) TiO 2 nanofibers, tailor‐made multi‐channel TiO 2 nanotubes have been successfully fabricated by electrospinning technology. After loading with Ce and V, the CeVTi‐tube catalyst exhibited a broad working temperature window and acceptable resistance to H 2 O and SO 2 for elimination of NO x . The corresponding analysis revealed that the multi‐channel structure provided more surface adsorbed oxygen species and that the wall of nanotubes anchored active components efficiently, which was beneficial to improve the stability as well as dispersion of the active components. Besides, a synergistic effect between Ce and V easily occurred at the CeVTi‐tube catalyst, and its reducibility was significantly improved since the electron transformation between Ce and V was dramatically enhanced. Consequently, the tailor‐made multi‐channel CeVTi‐tube catalyst exhibited satisfied de‐NO x efficiency at the temperature range of 220–460 °C. It seemed that the multi‐channel TiO 2 nanotubes hold great potential as an excellent carrier for SCR catalysts.