Combining catalysis and hydrogen storage in direct borohydride fuel   cells: towards more efficient energy utilization

doi:10.1039/c7ta01954h

CORC > 北京大学 > 化学与分子工程学院

	Combining catalysis and hydrogen storage in direct borohydride fuel cells: towards more efficient energy utilization
	Chen, Jun ; Fu, Jun ; Fu, Kai ; Xiao, Rui ; Wu, Yong ; Zheng, Xinyao ; Liu, Zhiliang ; Zheng, Jie ; Li, Xingguo
刊名	JOURNAL OF MATERIALS CHEMISTRY A
	2017
关键词	SWITCHABLE OPTICAL-PROPERTIES LANTHANUM HYDRIDE FILMS MG THIN-FILMS SODIUM-BOROHYDRIDE ANODIC MATERIALS GOLD ELECTRODES CARBON ELECTROOXIDATION PD NANOPARTICLES
DOI	10.1039/c7ta01954h
英文摘要	The hydrogen evolution reaction (HER) during the electrochemical oxidation of borohydride is the major efficiency loss in direct borohydride fuel cells (DBFCs). Here we show that an YH2-Pd thin film electrode, which combines catalysis on the Pd layer and H storage in the YH2 layer, can effectively promote the energy utilization efficiency. The YH2 layer can absorb the atomic H generated during the BH4- oxidation on the Pd layer and effectively suppress HER. The absorbed H can be further oxidized into H2O in NaOH solution, allowing full utilization of the 8 electrons in BH4- oxidation. The YH2-Pd electrode can be regarded as a hybridization of the anodes in conventional DBFCs and nickel-metal hydride batteries. The hydrogen absorption/desorption during the electrochemical process is in situ monitored by optical transmittance measurements, which provide key insights into the interconversion mechanisms and energetics of the hydridic, neutral and protonic hydrogen species.; SCI(E); ARTICLE; 27; 14310-14318; 5
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/472057]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Chen, Jun,Fu, Jun,Fu, Kai,et al. Combining catalysis and hydrogen storage in direct borohydride fuel cells: towards more efficient energy utilization[J]. JOURNAL OF MATERIALS CHEMISTRY A,2017.
APA	Chen, Jun.,Fu, Jun.,Fu, Kai.,Xiao, Rui.,Wu, Yong.,...&Li, Xingguo.(2017).Combining catalysis and hydrogen storage in direct borohydride fuel cells: towards more efficient energy utilization.JOURNAL OF MATERIALS CHEMISTRY A.
MLA	Chen, Jun,et al."Combining catalysis and hydrogen storage in direct borohydride fuel cells: towards more efficient energy utilization".JOURNAL OF MATERIALS CHEMISTRY A (2017).