Quasi

Authors :: Yue, Ma
Xiaodong, Wu
Jiancai, Ding
Liping, Liu
Baofang, Jin
Eric D, Walter
Rui, Ran
Zhichun, Si
Feng, Gao
Duan, Weng
Source :: Chemical communications (Cambridge, England). 57(15)
Publication Year :: 2021
Abstract: A quasi-operando NH3 temperature-programmed reduction method (NH3-TPR), with N2:Cu = 1:1, is developed to quantify total Cu(ii) ions in Cu-SSZ-13 quenched from SCR-relevant reactions, and its accuracy is confirmed by in situ EPR. [Cu(OH)]+-Z and Cu2+-2Z can be further distinguished by NH3 reduction temperatures, and their different reducibility in SCR is revealed.

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