期刊
NANOSCALE
卷 9, 期 27, 页码 9305-9309出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c7nr03734a
关键词
-
类别
资金
- National Natural Science Foundation of China [51571072, 21305025]
- Fundamental Research Funds for the Central Universities [AUGA5710012715]
- Heilongjiang Postdoctoral Scientific Research Development Fund [LBH-Q14058]
- China Postdoctoral Science Foundation [2015M81436]
- Heilongjiang Postdoctoral Science Foundation [LBH-Z15065]
Controlling the surface defects of nanocrystals is a new way of tuning/boosting their catalytic properties. Herein, we report networked PdAg nanowires (NWs) with high-density defects as catalytic hot spots for efficient catalytic dehydrogenation of formic acid (FA) and catalytic reduction of nitrates. The networked PdAg NWs exhibit composition-dependent catalytic activity for the dehydrogenation reaction of FA without any additive, with Pd5Ag5 NWs exhibiting the highest activity. They also show good durability, reflected by the retention of their initial activity during the dehydrogenation reaction of FA even after five cycles. Their initial TOF is 419 h(-1) at 60 degrees C in water solution, much higher than those of the most Pd-based catalysts with a support. Moreover, they can efficiently reduce nitrates to alleviate nitrate pollution in water (conversion yield >99%). This strategy opens up a new green synthetic technique to design support-free heterogeneous catalysts with high-density defects as catalytic hot spots for efficient dehydrogenation catalysis of FA to meet the requirement of fuel cell applications and catalytic reduction of nitrates in water polluted with nitrates.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据