Diphenylanthracene-based ion exchange membranes with high conductivity and robust chemical stability for acid-alkaline amphoteric water electrolysis

doi:10.1016/j.cej.2024.149056

IMR OpenIR

	Diphenylanthracene-based ion exchange membranes with high conductivity and robust chemical stability for acid-alkaline amphoteric water electrolysis
	Su, Xin 1; Nan, Songbo 1; Gu, Yao 1; Wei, Wei 2; He, Ronghuan 1
通讯作者	He, Ronghuan(herh@mail.neu.edu.cn)
	2024-02-15
发表期刊	CHEMICAL ENGINEERING JOURNAL
ISSN	1385-8947
卷号	482 页码:11
摘要	A novel polymer enriched with quaternary ammonium cation groups and having a star-branched crosslinking network is synthesized from bulky diphenylanthracene, the flexible 1, 6-dibromohexane and tris(dimethylaminomethyl) phenol. The enriched quaternary ammonium cations enable the membranes with both high anion exchange capacity and acid doping levels. The prepared membranes show a proton conductivity of 262 mS cm(-1) and a hydroxide conductivity of 149 mS cm(-1) at 80 degrees C under 100 % relatively humidity. The hydrated membrane with exchangeable hydroxide ions exhibits a tensile stress at break of 44.7 MPa at room temperature. A steady proton conductivity and a hydroxide conductivity retention rate as high as 93 % are achieved by the prepared membranes after soaking in 3 mol/L H2SO4 or 6 mol/L KOH at 80 degrees C for 1000 h. A current density of 996 mA cm(-2) is obtained at 80 degrees C under 2.0 V by the amphoteric water electrolytic cell using the prepared membrane as the diaphragm. The energy consumption of this system is 2.7 kWh Nm(-3) operating at a current density of 100 mA cm(-2) for 64 h, offering a possibility of low energy consumption for hydrogen production.
关键词	Ion exchange membranes Conductivity Stability Crosslinking Amphoteric water electrolysis
资助者	National Natural Science Foundation of China
DOI	10.1016/j.cej.2024.149056
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[22379022] ; National Natural Science Foundation of China[51572044]
WOS研究方向	Engineering
WOS类目	Engineering, Environmental ; Engineering, Chemical
WOS记录号	WOS:001174060600001
出版者	ELSEVIER SCIENCE SA
引用统计	被引频次：8[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/185001
专题	中国科学院金属研究所
通讯作者	He, Ronghuan
作者单位	1.Northeastern Univ, Coll Sci, Dept Chem, Shenyang 110819, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China
推荐引用方式 GB/T 7714	Su, Xin,Nan, Songbo,Gu, Yao,et al. Diphenylanthracene-based ion exchange membranes with high conductivity and robust chemical stability for acid-alkaline amphoteric water electrolysis[J]. CHEMICAL ENGINEERING JOURNAL,2024,482:11.
APA	Su, Xin,Nan, Songbo,Gu, Yao,Wei, Wei,&He, Ronghuan.(2024).Diphenylanthracene-based ion exchange membranes with high conductivity and robust chemical stability for acid-alkaline amphoteric water electrolysis.CHEMICAL ENGINEERING JOURNAL,482,11.
MLA	Su, Xin,et al."Diphenylanthracene-based ion exchange membranes with high conductivity and robust chemical stability for acid-alkaline amphoteric water electrolysis".CHEMICAL ENGINEERING JOURNAL 482(2024):11.