Promotional effect for SCR of NO with CO over MnOx-doped Fe3O4 nanoparticles derived from metal-organic frameworks

Yu Zhang; Ling Zhao; Ziang Chen; Xinyong Li

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Promotional effect for SCR of NO with CO over MnO_x-doped Fe₃O₄ nanoparticles derived from metal-organic frameworks

Updated：2026-01-06

- Promotional effect for SCR of NO with CO over MnO_x-doped Fe₃O₄ nanoparticles derived from metal-organic frameworks
- Chinese Journal of Chemical Engineering Vol. 46, Issue 6, Pages: 113-125(2022)
- Affiliations：
  
  1. School of Ecology and Environment, Inner Mongolia University,China
  2. College of Veterinary Medicine, University of Florida,United States
  3. School of Environmental Science & Technology, Dalian University of Technology,China
- Author bio：
- Funds：
- DOI：
  CLC：
- Published：2022
- Accepted：
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摘要

Abstract

MnO

-Fe

nanomaterials were fabricated by using the innovative scheme of pyrolyzing manganese-doped iron-based metal organic framework in inert atmosphere and exhibited extraordinary performance of NO reduction by CO (CO-SCR). Multi-technology characterizations were conducted to ascertain the properties of fabricated materials (

TGA

XRD

SEM

FT-IR

XPS

BET

-TPR and O

-TPD). Moreover

the interaction between reactants and catalysts was ascertained by

in situ

FT-IR. Experimental results demonstrated that Mn was an ideal promoter for iron oxides

resulting in decrease of crystallite size

improve reducibility property

enhance the mobility and the amount of lattice O

species

as well as strength the adsorption ability of active NO and CO to form multiple species (

nitrate and carbonate). The unprecedented enhancement of CO-SCR activity over Mn-Fe nanomaterials follows the Eley-Rideal (E-R) and Langmuir-Hinshelwood (L-H) reaction pathway.

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