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

Mengke Liu; Yingnan Zhao; Huawang Zhao; Xianghui Li; Yuhan Ma; Xin Yong; Hong Chen; Yongdan Li

doi:10.1016/j.cattod.2018.05.002

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

Mengke Liu, Yingnan Zhao, Huawang Zhao, Xianghui Li, Yuhan Ma, Xin Yong, Hong Chen, Yongdan Li^*

^*Corresponding author for this work

Tianjin University

Research output: Contribution to journal › Article › Scientific › peer-review

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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⁺-O^2–-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.

Original language	English
Pages (from-to)	203-209
Number of pages	7
Journal	Catalysis Today
Volume	327
DOIs	https://doi.org/10.1016/j.cattod.2018.05.002
Publication status	Published - 1 May 2019
MoE publication type	A1 Journal article-refereed

Keywords

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

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10.1016/j.cattod.2018.05.002

CHEM-Mengke-et al-Promotion effect2018-Catalysis TodayAccepted author manuscript, 1.74 MBLicence: CC BY-NC-ND

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

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.",

keywords = "Cu-ZSM-5, Emission control, Ni and La doping, NO decomposition",

author = "Mengke Liu and Yingnan Zhao and Huawang Zhao and Xianghui Li and Yuhan Ma and Xin Yong and Hong Chen and Yongdan Li",

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AU - Liu, Mengke

AU - Zhao, Yingnan

AU - Zhao, Huawang

AU - Li, Xianghui

AU - Ma, Yuhan

AU - Yong, Xin

AU - Chen, Hong

AU - Li, Yongdan

PY - 2019/5/1

Y1 - 2019/5/1

N2 - 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.

AB - 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.

KW - Cu-ZSM-5

KW - Emission control

KW - Ni and La doping

KW - NO decomposition

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

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

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