Metal Organic Framework Derived Nanomaterials for Low Temperature Selective Catalytic Reduction (SCR) of NOx

Professor Chan, Godwin Kwong Yu   (Project Coordinator (PC))

Professor Leung Yiu Cheong Dennis   (Co-Investigator)

Dr Li Chi Ying Vanessa   (Co-Investigator)

24

2019-11-01

2021-10-31

804000

Metal Organic Framework Derived Nanomaterials for Low Temperature Selective Catalytic Reduction (SCR) of NOx

Derived Nanomaterials, Low Temperature, Metal Organic Framework, NOx, Selective Catalytic Reduction (SCR)

Others - Chemical Engineering

Physical Sciences (P)

PiH/303/19

Postdoctoral Hub Programme for ITF projects

2019

Completed

Ammonia assisted selective catalytic reduction (SCR) of nitrogen oxide (NOx) is currently the commercialized technology employed to effectively reduce NOx from motor vehicle tailpipes. There are indeed research on various catalysts to lower the reaction temperature for the catalytic NOx reduction, but they generally do not report their aged performance or thermal stability at elevated temperature which is vital for commercialization. Current commercial catalyst, V2O5-WO3 or V2O5-MoO3 on TiO2 support is effective in the temperature range 350-400 deg C, but Vanadium species is highly toxic; there is strong demand for Vanandium-free catalyst and lower the reaction temperature below 250 deg C to cater for the frequent stopping in urban driving environment. CeO2-based materials are promising alternative to conventional catalysts due to the advancement in catalyst design and the high oxygen storage capacity. In this project, we target to develop a durable and thermally stable CeO2-based catalyst derived from metal organic framework that can reduce NOx below 220 deg C and also test as prototypes in simulated vehicle environment. The success of this project would put Hong Kong in the frontier in the SCR catalyst for NOx reduction.