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Updated: Aug 6, 2026

Synthesis of Metal Nanoparticles Supported on Carbon Nanotube with Doped Co and N Atoms and its Catalytic Applications in Hydrogen Production
Published on: December 6, 2021
β-Cyclodextrin breaks the activity-stability trade-off in PtCo aerogel catalysts for ammonia electrooxidation
Jialu Huang1, Yanqi Li1, Chao Wang1
1School of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, China. xlyuan@ntu.edu.cn.
None:
β-Cyclodextrin functions as a sacrificial molecular chaperone in the one-pot synthesis of PtCo aerogels, overcoming the activity-stability trade-off in ammonia electrooxidation. Unlike conventional templates that block active sites, it orchestrates metal precursors to impede aggregation without obstructing active sites. This chaperone is largely removed during the washing process, leaving behind a three-dimensional porous structure with substantially accessible catalytic surfaces. β-Pt7Co1 attains a mass activity of 91.97 A g-1 with 92.3% retention after 500 cycles, surpassing that of commercial PtIr/C by a factor of 7.76. In situ Raman spectroscopy demonstrates accelerated turnover of *N2Hx intermediates through the Gerischer-Mauerer mechanism. This chaperone-mediated strategy is generally applicable to multimetallic aerogels.
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