Journal
ACS CATALYSIS
Volume 6, Issue 6, Pages 3433-3441Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acscatal.6b00144
Keywords
core-shell; microspheres; spinel oxides; toluene combustion; DRIFTS
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Funding
- National Natural Science Foundations of China [21325731, 21221004]
- National High Science & Technology Project of China [2013AA065304]
- China Postdoctoral Science Foundation [2015M580108]
- State Environmental Protection Key Laboratory of Sources and Control of Air Pollution Complex
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The high-efficiency catalyst is the key factor of volatile organic compounds (VOCs) catalytic combustion. Herein, hierarchical core-shell Al2O3@Pd-CoAlO (Pd-CoAlO-Al) microspheres have been successfully prepared and used for toluene combustion. The experimental results reveal that the core-shell Pd-CoAlO-Al exhibits outstanding catalytic efficiency due to the homogeneous distribution of Pd-CoAlO nanosheets on Al2O3 supports and the strong interaction between the catalytically active Pd-CoAlO nanosheets and the Al2O3 supports. In particular, the catalytically active PdO contributes to the excellent catalytic efficiency. In addition, the in situ DRIFTS results indicate that the benzoate species are the main intermediate species in toluene combustion.
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