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. 2021 Jan 16;8(10):nwab010. doi: 10.1093/nsr/nwab010

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© The Author(s) 2021. Published by Oxford University Press on behalf of China Science Publishing & Media Ltd.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited.

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Figure 9. — (a) Mechanism of preparation of Cu-TEPA templated Cu-SSZ-13 zeolites. Adapted with permission from ref. [94]. (b) HNO₃-NH₄NO₃ aftertreatment of in situ synthesized Cu-SSZ-13. (c) NH₃-SCR performance of aftertreated Cu-SSZ-13 before and after hydrothermal aging at 750 and 800°C, GHSV = 200 000 h⁻¹. Adapted with permission from ref. [51]. (d) NH₃-SCR performance of commercial fresh and HTA-800 Cu/SSZ-13 samples (Si/Al = 12, Cu loading = 2.1%), GHSV = 200 000 h⁻¹. Adapted with permission from ref. [48].