气候变化领域集成服务门户(CCPortal): A rechargeable Al-N2battery for energy storage and highly efficient N2fixation

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DOI	10.1039/d0ee01241f
	A rechargeable Al-N2battery for energy storage and highly efficient N2fixation
	Guo Y.; Yang Q.; Wang D.; Li H.; Huang Z.; Li X.; Zhao Y.; Dong B.; Zhi C.
发表日期	2020
ISSN	17545692
起始页码	2888
结束页码	2895
卷号	13 期号:9
英文摘要	Currently developed metal-gas batteries include various metal-CO2 batteries, but in the area of N2-based batteries, only Li-N2 and Na-N2 batteries have been demonstrated. According to Gibbs free energy calculations, an Al-N2 electrochemistry system would possess even higher spontaneity, and metallic Al is safe for storage and transportation. However, an Al-N2 system has not been demonstrated so far. Herein, for the first time, a rechargeable Al-N2 battery system is proposed and demonstrated with an ionic-liquid electrolyte, a graphene-supported Pd (graphene/Pd) catalyst cathode, and a low-cost Al anode. The battery realizes both energy storage and the production of AlN through sucking up a N2 feedstock. AlN can be easily further converted to an NH3-based product, which is essential for the manufacturing of nitrogenous fertilizers and is regarded as an ideal carbon-free energy carrier. In this system, the formation and decomposition of the cathodic AlN product upon cycling are prerequisites for battery rechargeability and cyclability. Remarkably, the battery system exhibits excellent N2 fixation capabilities with an impressive faradaic efficiency (FE) of 51.2%, far outperforming other systems (FE: ∼5%). This work not only demonstrates the first Al-N2 battery system enabling energy conversion, but it also offers a promising alternative method for artificial N2 fixation to the energy-intensive Haber-Bosch process and the low-FE electrochemical N2 reduction reaction in aqueous electrolytes. This journal is © The Royal Society of Chemistry.
英文关键词	Aluminum; Aluminum nitride; Ammonia; Electrodes; Electrolytes; Energy conversion; Energy storage; Free energy; Gibbs free energy; Graphene; III-V semiconductors; Ionic liquids; Lithium compounds; Sodium compounds; Aqueous electrolyte; Energy carriers; Faradaic efficiencies; Gibbs free energy calculations; Haber-Bosch process; Ionic liquid electrolytes; Reduction reaction; Storage and transportations; Secondary batteries; energy efficiency; energy storage; equipment component; nitrogen; nitrogen fixation
语种	英语
来源期刊	Energy & Environmental Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/189543
作者单位	Department of Materials Science and Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, 999077, Hong Kong; Songshan Lake Materials Laboratory, Dongguan Guangdong, 523808, China; National Engineering Research Center for Advanced Polymer Processing Technology, Zhengzhou University, Zhengzhou Henan, 450002, China; Centre for Functional Photonics, City University of Hong Kong, Kowloon, Hong Kong
推荐引用方式 GB/T 7714	Guo Y.,Yang Q.,Wang D.,et al. A rechargeable Al-N2battery for energy storage and highly efficient N2fixation[J],2020,13(9).
APA	Guo Y..,Yang Q..,Wang D..,Li H..,Huang Z..,...&Zhi C..(2020).A rechargeable Al-N2battery for energy storage and highly efficient N2fixation.Energy & Environmental Science,13(9).
MLA	Guo Y.,et al."A rechargeable Al-N2battery for energy storage and highly efficient N2fixation".Energy & Environmental Science 13.9(2020).