Nitrogen‐Decorated Porous Carbon Supported AgPd Nanoparticles for Boosting Hydrogen Generation from Formic Acid

Formic acid (FA) decomposition to yield molecular H2 is a promising approach in hydrogen economy. Design of selective, efficient catalysts for dehydrogenation of formic acid remains a challenging topic. Here, nitrogen‐doped porous carbon (NPC) nanosheets were fabricated with glucose as carbon source...

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Veröffentlicht in:Energy technology (Weinheim, Germany) Germany), 2019-01, Vol.7 (1), p.140-145
Hauptverfasser: Zhang, Xiaoyu, Shang, Ningzhao, Shang, Honglin, Du, Tianxing, Zhou, Xin, Feng, Cheng, Gao, Shutao, Wang, Chun, Wang, Zhi
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Sprache:eng
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Zusammenfassung:Formic acid (FA) decomposition to yield molecular H2 is a promising approach in hydrogen economy. Design of selective, efficient catalysts for dehydrogenation of formic acid remains a challenging topic. Here, nitrogen‐doped porous carbon (NPC) nanosheets were fabricated with glucose as carbon source and g‐C3N4 as both the nitrogen source and self‐sacrificial template. Highly dispersed AgPd nanoparticles were supported on NPC successfully by a simple liquid impregnation approach. The optimized catalyst Ag1Pd9@NPC exhibits high catalytic activity (total turnover frequency up to 3000 h−1) and 100 % hydrogen selectivity for the dehydrogenation reaction of FA at 50 °C. Our study demonstrated that the synergistic effects between the nitrogen‐doped carbon nanosheets support and AgPd nanoparticles play a pivotal role for the efficient catalytic dehydrogenation of formic acid. Highly dispersed Ag−Pd alloy deposited on nitrogen doped porous carbon was successfully prepared via a self‐sacrificial template method. The as‐synthesized Ag9Pd1/NPC catalyst exhibited 100 % H2 selectivity and high catalytic activity (TOF=3000 h−1) toward the dehydrogenation of formic acid at 50 °C.
ISSN:2194-4288
2194-4296
DOI:10.1002/ente.201800522