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Papers |
First Author: |
ZHU Na |
Abstract: |
In this study, a Cu/SAPO-18 catalyst was treated by H2 reduction, which induced a remarkable enhancement of the low-temperature NH3-SCR activity. Compared with the fresh catalyst, the reduced Cu/SAPO-18 catalyst showed an increase in NOx conversion from 45% to 80% at 175 °C, and from 80% to 100% at 200 °C, under a GHSV of 200,000 h-1. The characterization (XRD, XPS and H2-TPR) and in-situ DRIFTS results confirmed that a large amount of Cu cations (most of which were Cu+ ions) existed on/in Cu/SAPO-18 after the H2 reduction treatment. The increased Cu+/Cu2+ ratio led to the enhanced low-temperature SCR activity.
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Contact the author: |
SHAN Wenpo |
Page Number: |
536-544 |
Issue: |
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Subject: |
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Impact Factor: |
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Authors units: |
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PubYear: |
JUL 2019 |
Volume: |
483 |
Publication Name: |
APPLIED SURFACE SCIENCE |
The full text link: |
https://doi.org/10.1016/j.apsusc.2019.03.336 |
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