High volumetric energy density capacitors based on new electrode material lanthanum nitride

doi:10.1021/acsenergylett.6b00636

	High volumetric energy density capacitors based on new electrode material lanthanum nitride
	Zhang, Wei-Bin 1; Ma, Xue-Jing 1; Loh, Adeline 2; Li, Xiaohong 2; Walsh, Frank C.3; Kong, Ling-Bin 1
刊名	ACS Energy Letters
	2017-02-10
卷号	2 期号:2 页码:336-341
关键词	Ammonia Capacitance Charge transfer Electrochemical electrodes Silver compounds Sodium sulfate Capacitive materials Electrical charges Electrode material Lanthanum nitride Reversible electrodes Space-charge accumulation Volumetric capacitance Volumetric energy densities
ISSN号	2380-8195
DOI	10.1021/acsenergylett.6b00636
英文摘要	LaN is synthesized via calcining La2O3 in NH3 and studied as capacitive material for energy storage. A volumetric capacitance of 951.3 F cm-3 was found in 1 mol dm-3 Na2SO4 using a current density of 1 Ag-1, with less than 1% loss of capacitance being experienced after 5000 cycles. In addition, 87.3% of the initial capacitance remained at a current density of 10 A g-1. LaN exhibits high capacitance that is attributed to subsurface space charge accumulation with a possible electric double-layer capacitor component. A reversible electrode process ensures long cycle life and favorable electrical charge transfer. The assembled LaN symmetrical capacitor showed high volumetric energy densities, facilitating high-duty applications. © 2017 American Chemical Society.
资助项目	Foundation for Innovation Groups of Basic Research in Gansu Province[1606RJIA322]
WOS研究方向	Chemistry ; Electrochemistry ; Energy & Fuels ; Science & Technology - Other Topics ; Materials Science
语种	英语
出版者	American Chemical Society
WOS记录号	WOS:000394080000009
状态	已发表
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/114946]
专题	材料科学与工程学院
通讯作者	Kong, Ling-Bin
作者单位	1.Lanzhou Univ Technol, Sch Mat Sci & Engn, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Peoples R China 2.Univ Exeter, Coll Engn Math & Phys Sci, Renewable Energy Grp, Penryn Campus, Exeter TR10 9FE, Cornwall, England 3.Univ Southampton, Fac Engn & Environm, Energy Technol Grp, Electrochem Engn Lab, Southampton SO17 1BJ, Hants, England
推荐引用方式 GB/T 7714	Zhang, Wei-Bin,Ma, Xue-Jing,Loh, Adeline,et al. High volumetric energy density capacitors based on new electrode material lanthanum nitride[J]. ACS Energy Letters,2017,2(2):336-341.
APA	Zhang, Wei-Bin,Ma, Xue-Jing,Loh, Adeline,Li, Xiaohong,Walsh, Frank C.,&Kong, Ling-Bin.(2017).High volumetric energy density capacitors based on new electrode material lanthanum nitride.ACS Energy Letters,2(2),336-341.
MLA	Zhang, Wei-Bin,et al."High volumetric energy density capacitors based on new electrode material lanthanum nitride".ACS Energy Letters 2.2(2017):336-341.