Journal
JOURNAL OF MATERIALS CHEMISTRY A
Volume 4, Issue 10, Pages 3648-3654Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5ta09370h
Keywords
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Funding
- National Science Fund for Distinguished Young Scholars [21425627]
- Science and Technology Plan Project [2013B090600036]
- Natural Science Foundation of China [21461162003, 21476271]
- Natural Science Foundation of Guangdong Province, China [2014KTSCX004, 2014A030308012]
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Cost-effective catalysts for volatile organic compound (VOC) oxidation are critical to energy conversion and environmental protection. Herein, we developed new, low-cost and high-performance alkali-promoted 3D-NiCo2O4 nanosheet catalysts for HCHO oxidation at room temperature. Benefiting from the large surface area, high adsorption capacity and surface hydroxyls, the alkali-promoted 3D-NiCo2O4 nanosheet catalysts show substantially high catalytic activities for HCHO oxidation. The alkali-promoted 3D-NiCo2O4 nanosheets yield a remarkable HCHO conversion efficiency of 95.3% at room temperature, which is not achieved by any non-precious metal based catalysts at such low temperature. Additionally, the as-prepared alkali-promoted 3D-NiCo2O4 nanosheets retained excellent catalytic performance after 200 h, which can be applied to practical applications. This work provides a feasible approach to improve the efficiency of metal oxides for HCHO oxidation at low temperature.
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