DeNO_xperformance enhancement of Cu-based oxidesviaemploying a TiO₂phase to modify LDH precursors

Abstract

The CuAl-LDO/TiO2NTs catalyst derived from TiO2NTs modified CuAl-LDHs was innovatively prepared with excellent deNOx performance.

Mn mixed oxide catalysts supported on Sn-doped CoAl-LDO for low-temperature NH3-SCR

“…19 An LDH layer may contain M 1+ and M 4+ metal cations as well, but only for a limited number of specific elements (Ti 4+ , Sn 4+ , Li 1+ , etc.). 20,21 LDHs are transformed into layered double metal oxides (LDOs) by high-temperature calcination treatment. 20,22,23 Wang et al have prepared a series of new catalysts with highly dispersed MnO x species using Co-Al-LDH as the precursor by the conventional impregnation method, which show excellent NH 3 -SCR activity.…”

“…20,21 LDHs are transformed into layered double metal oxides (LDOs) by high-temperature calcination treatment. 20,22,23 Wang et al have prepared a series of new catalysts with highly dispersed MnO x species using Co-Al-LDH as the precursor by the conventional impregnation method, which show excellent NH 3 -SCR activity. 24 Du et al have doped transition metals Cu, Ni, and Co into MnAl mixed oxides, which are prepared with LDHs as precursors for NH 3 -SCR, and the highest NO x removal efficiency is achieved in a wide operating temperature range (150-300 °C) for CoMnAl-LDO.…”