Catalytic Dehydrogenation Enhanced by Controlling Platinum Nanoparticle Density
Yike Wang1, Wenlong Li2, Liang Wang3
1Key Lab of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China.
Abstract:
Enhancing the catalytic activity of supported nanoparticles has traditionally relied on optimizing the nanoparticle size and electronic state. We found that optimizing nanoparticle density, while maintaining similar particle sizes and electronic states, could enhance intrinsic catalytic activity. In the catalytic dehydrogenation of cyclohexane, tuning the Pt nanoparticle density leads to a 9.6-fold increase in Pt efficiency, achieving a benzene formation rate of 24,217 molC6H6 molPt-1 h-1, which outperforms previous catalysts. The nanoparticle density-optimized catalyst remained durable during a continuous test for 800 h.
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