Fabrication of Mn–CeOx/CNTs catalysts by a redox method and their performance in low-temperature NO reduction with NH3

Abstract

Highly active Mn–CeO_x/CNTs catalysts were first fabricated by a novel redox method, and a formation mechanism was proposed. The as-obtained catalyst possessed an amorphous structure, and high Ce³⁺/(Ce³⁺ + Ce⁴⁺) and O_α/(O_α + O_β) ratios, which endowed it with 52.2–98.4% NO conversion at a weight hourly space velocity of 210 000 ml g_cat⁻¹ h⁻¹.