The promotion effect of nickel and lanthanum on Cu-ZSM-5 catalyst in NO direct decomposition

Research output: Contribution to journalArticleScientificpeer-review

Researchers

Research units

  • Tianjin University

Abstract

A number of M-Cu-ZSM-5 (M = La, Ni, La-Ni) samples were prepared via an aqueous solution ion-exchange method. The co-doping with Ni and La into a Cu-ZSM-5 catalyst enhanced the NO decomposition activity in a temperature range 350–550 °C. The characterization results indicate that doping with La effectively improved the dispersion of the Cu species forming more Cu2+ ions in the sample, while the effect of Ni is likely to facilitate the implantation of Cu2+ to form (Cu2+-O2–-Cu2+)2+ dimers. The synergistic effect of La and Ni contributes to the increased (Cu2+-O2−-Cu2+)2+ content in the co-doped sample, thus enhancing the NO decomposition activity.

Details

Original languageEnglish
Pages (from-to)203-209
Number of pages7
JournalCatalysis Today
Volume327
Publication statusPublished - 1 May 2019
MoE publication typeA1 Journal article-refereed

    Research areas

  • Cu-ZSM-5, Emission control, Ni and La doping, NO decomposition

ID: 21691113