Nanoparticles of Zn–Al complex oxides (see Figure) have been successfully synthesized in large quantities using a simple hydrothermal process without a surfactant. When these nanomaterials with high surface areas are used as the catalyst for selective reduction of NOx, they show high activity, thermal/hydrothermal stability, and high selectivity to N2. The results indicate good potential for application of these new nanomaterials as environmental catalysts.
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