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Heavy metal poisoning resistance of a Co-modified 3Mn10Fe/Ni low-temperature SCR deNOx catalyst by Baozhong Zhu; Weiqi Chen; Jinghui Wang; Yunlan Sun; Weiyi Song; Zhaohui Zi; Hailong Yu; Enhai Liu is a Environmental Science article available to read on EtoBox.

What is Heavy metal poisoning resistance of a Co-modified 3Mn10Fe/Ni low-temperature SCR deNOx catalyst about?

Heavy metals have a great influence on the deNO efficiency of catalysts. The 3Mn10Fe/Ni catalyst that used nickel foam (Ni) as the carrier, Mn and Fe as the active components, and Co as a trace auxiliary was prepared using an impregnation method. The catalysts poisoned by Pb or Zn and Co-modified catalysts with Pb or Zn poisoning were studied. The addition of Pb or Zn significantly decreases the deNO activity of the 3Mn10Fe/Ni catalyst due to the decrease in the content of high-valence metal elements such as Fe and Mn, lattice oxygen concentration, reduction performance, acidity, and the number of acid sites. However, after Co modification, the deNO activity of the poisoned catalysts can be improved effectively because the strong interaction between Pb or Zn and lattice oxygen is weakened, and the contents of lattice oxygen, high valence metal elements, reduction ability, and the number of acid sites increase.

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Author

Baozhong Zhu; Weiqi Chen; Jinghui Wang; Yunlan Sun; Weiyi Song; Zhaohui Zi; Hailong Yu; Enhai Liu

Publisher

Springer-Verlag; Springer Verlag; Springer Science and Business Media LLC; Publons; Society for Mining, Metallurgy and Exploration Inc. (ISSN 0944-1344)

Published

2020

Language

EN

Field

Environmental Science (Physical Sciences)