Effect of Hydrazine Pretreatment on the Activity, Stability and Active Sites of Cobalt Species for Preferential Oxidation (PROX) of CO in H2-Rich Stream
Abstract
:1. Introduction
2. Experimental Section
2.1. Preparation of Catalysts
2.2. Characterisation of Catalysts
2.3. Catalytic Activity Tests
3. Results and Discussion
3.1. Thermal and Structural Properties of Catalysts
3.2. Catalytic Activity for PROX of CO Reaction
3.2.1. Catalytic Performance of Various Cobalt Species on PROX of CO
3.2.2. Effects of Temperature, Moisture and CO2 on the Stability of Either Co3O4 or Co3O4(H)
4. Conclusions
Author Contributions
Funding
Acknowledgments
Conflicts of Interest
References
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Catalyst | SBET (m2/g) | Pore Volume (cm3·g−1) | Pore Size (nm) | Average Crystallite Size (nm) a | Tmax (°C) b | Maximum CO Conversion (%) b |
---|---|---|---|---|---|---|
Co3O4(H) | 62.2 | 0.158 | 9.95 | 20.0 | 120 | 98.1 |
CoO(H) | 56.6 | 0.184 | 13.0 | 11.4 | 140 | 98.5 |
Co3O4 | 49.7 | 0.137 | 11.3 | 23.2 | 160 | 96.7 |
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Mhlaba, R.; Mosuang, T.; Magadzu, T. Effect of Hydrazine Pretreatment on the Activity, Stability and Active Sites of Cobalt Species for Preferential Oxidation (PROX) of CO in H2-Rich Stream. Chemistry 2019, 1, 164-179. https://doi.org/10.3390/chemistry1010011
Mhlaba R, Mosuang T, Magadzu T. Effect of Hydrazine Pretreatment on the Activity, Stability and Active Sites of Cobalt Species for Preferential Oxidation (PROX) of CO in H2-Rich Stream. Chemistry. 2019; 1(1):164-179. https://doi.org/10.3390/chemistry1010011
Chicago/Turabian StyleMhlaba, Reineck, Thuto Mosuang, and Takalani Magadzu. 2019. "Effect of Hydrazine Pretreatment on the Activity, Stability and Active Sites of Cobalt Species for Preferential Oxidation (PROX) of CO in H2-Rich Stream" Chemistry 1, no. 1: 164-179. https://doi.org/10.3390/chemistry1010011