High-density defects on PdAg nanowire networks as catalytic hot spots   for efficient dehydrogenation of formic acid and reduction of nitrate

doi:10.1039/c7nr03734a

CORC > 北京大学 > 工学院

	High-density defects on PdAg nanowire networks as catalytic hot spots for efficient dehydrogenation of formic acid and reduction of nitrate
	Liu, Hu ; Yu, Yongsheng ; Yang, Weiwei ; Lei, Wenjuan ; Gao, Manyi ; Guo, Shaojun
刊名	NANOSCALE
	2017
关键词	CHEMICAL HYDROGEN STORAGE ALLOY NANOPARTICLES ROOM-TEMPERATURE AMMONIA BORANE DECOMPOSITION GENERATION SURFACES FUTURE CORE
DOI	10.1039/c7nr03734a
英文摘要	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.; 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]; SCI(E); ARTICLE; 27; 9305-9309; 9
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/472054]
专题	工学院
推荐引用方式 GB/T 7714	Liu, Hu,Yu, Yongsheng,Yang, Weiwei,et al. High-density defects on PdAg nanowire networks as catalytic hot spots for efficient dehydrogenation of formic acid and reduction of nitrate[J]. NANOSCALE,2017.
APA	Liu, Hu,Yu, Yongsheng,Yang, Weiwei,Lei, Wenjuan,Gao, Manyi,&Guo, Shaojun.(2017).High-density defects on PdAg nanowire networks as catalytic hot spots for efficient dehydrogenation of formic acid and reduction of nitrate.NANOSCALE.
MLA	Liu, Hu,et al."High-density defects on PdAg nanowire networks as catalytic hot spots for efficient dehydrogenation of formic acid and reduction of nitrate".NANOSCALE (2017).