Piperidinium-functionalized anion exchange membranes and their application in alkaline fuel cells and water electrolysis

doi:10.1039/c9ta01167f

GIEC OpenIR

	Piperidinium-functionalized anion exchange membranes and their application in alkaline fuel cells and water electrolysis
	Chu, Xiaomeng 1,2; Shi, Yan 4,5; Liu, Lei 1,3; Huang, Yingda 1; Li, Nanwen 1,2
	2019-04-07
发表期刊	JOURNAL OF MATERIALS CHEMISTRY A
ISSN	2050-7488
卷号	7 期号:13 页码:7717-7727
通讯作者	Liu, Lei(liulei@ahnu.edu.cn) ; Huang, Yingda(huangyd@sxicc.ac.cn) ; Li, Nanwen(linanwen@sxicc.ac.cn)
摘要	To produce a stable anion exchange membrane (AEM) for deployable electrochemical devices with a long lifespan, we here present the synthesis and properties of a series of piperidinium-functionalized poly(2,6-dimethyl phenylene oxide)s with different locations of piperidinium groups along the polymer backbones. A distinct phase separated morphology was observed for long side-chain-type AEMs (LSCPi) as confirmed by AFM analysis, which in turn enabled its higher hydroxide conductivity over side-chain-type (SCPi) and standard benzylmethyl piperidinium AEMs (BPi). A hydroxide conductivity of 29.0 mScm(-1) at 20 degrees C was achieved for the LSCPi membrane with an IEC value of 1.57 meq. g(-1). This level of conductivity was lower than that of the corresponding QA-based AEMs (LSCQA) (38.7 mS cm(-1) at 20 degrees C), probably as a result of its low IEC accompanied by low water uptake. The LSCPi membrane displayed excellent alkaline stability with 98% retention in conductivity after 560 h of testing in 1 M NaOH at 80 degrees C, and no obvious degradation was detected by NMR analysis of the aged sample. To demonstrate the feasibility of piperidinium-functionalized AEMs, both SCPi and LSCPi membranes were fabricated into a membrane electrode assembly for the H-2/O-2 alkaline fuel cell and AEM water electrolyzer applications. The highly conductive LSCPi membrane showed good cell performance with a peak power density of 116 mW cm(-2) at 60 degrees C in alkaline fuel cells and 300 mA cm(-2) at 1.80 V at 50 degrees C in AEM water electrolysis working with pure water. Although a gradual drop in performance was observed for both the alkaline fuel cell and water electrolyser durability testing at a constant current during the test of 8.7 h and 35 h respectively, the high durability of AEMs having piperidinium cations was verified by post-mortem analysis of aged AEMs by NMR spectroscopy. The current findings provided fundamental insights into the durability of AEMs under ex situ and in situ operating conditions and demonstrated that the piperidinium-functionalized AEM appears to be a promising material for durable AEM-based devices.
DOI	10.1039/c9ta01167f
关键词[WOS]	QUATERNARY AMMONIUM CATIONS ; POLY(ARYLENE ETHER SULFONE) ; SIDE-CHAINS ; PERFORMANCE ; STABILITY ; CONDUCTIVITY ; COPOLYMERS ; TRANSPORT ; POLYMERS ; SPACERS
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[21835005] ; Science and Technology Major Projects of Shanxi Province of China[20181102019] ; Hundred Talents Program of the Chinese Academy of Sciences ; Hundred Talents Program of the Shanxi Province ; Autonomous Research Project of SKLCC ; Shell Global Solutions International B.V.[PT79192]
WOS研究方向	Chemistry ; Energy & Fuels ; Materials Science
项目资助者	National Natural Science Foundation of China ; Science and Technology Major Projects of Shanxi Province of China ; Hundred Talents Program of the Chinese Academy of Sciences ; Hundred Talents Program of the Shanxi Province ; Autonomous Research Project of SKLCC ; Shell Global Solutions International B.V.
WOS类目	Chemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary
WOS记录号	WOS:000463819400042
出版者	ROYAL SOC CHEMISTRY
引用统计	被引频次：132[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.giec.ac.cn/handle/344007/24844
专题	中国科学院广州能源研究所
通讯作者	Liu, Lei; Huang, Yingda; Li, Nanwen
作者单位	1.Chinese Acad Sci, Inst Coal Chem, State Key Lab Coal Convers, Taiyuan 030001, Shanxi, Peoples R China 2.Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, Beijing 100049, Peoples R China 3.Anhui Normal Univ, Coll Chem & Mat Sci, Minist Educ, Key Lab Funct Mol Solids, Wuhu 241000, Peoples R China 4.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Guangdong, Peoples R China 5.Key Lab New & Renewable Energy Res & Dev Guangdon, Guangzhou 510640, Guangdong, Peoples R China
推荐引用方式 GB/T 7714	Chu, Xiaomeng,Shi, Yan,Liu, Lei,et al. Piperidinium-functionalized anion exchange membranes and their application in alkaline fuel cells and water electrolysis[J]. JOURNAL OF MATERIALS CHEMISTRY A,2019,7(13):7717-7727.
APA	Chu, Xiaomeng,Shi, Yan,Liu, Lei,Huang, Yingda,&Li, Nanwen.(2019).Piperidinium-functionalized anion exchange membranes and their application in alkaline fuel cells and water electrolysis.JOURNAL OF MATERIALS CHEMISTRY A,7(13),7717-7727.
MLA	Chu, Xiaomeng,et al."Piperidinium-functionalized anion exchange membranes and their application in alkaline fuel cells and water electrolysis".JOURNAL OF MATERIALS CHEMISTRY A 7.13(2019):7717-7727.