气候变化领域集成服务门户(CCPortal): High performance electrospun bipolar membrane with a 3D junction

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DOI	10.1039/c7ee00345e
	High performance electrospun bipolar membrane with a 3D junction
	Shen C.; Wycisk R.; Pintauro P.N.
发表日期	2017
ISSN	17545692
起始页码	1435
结束页码	1442
卷号	10 期号:6
英文摘要	A new type of bipolar membrane (BPM) with a high interfacial area 3D water splitting junction has been fabricated and tested. BPMs were made by single and dual fiber electrospinning, followed by dimethylformamide vapor exposure and hot-pressing, with sulfonated poly(ether ether ketone) as the cation-exchange polymer and quaternized poly(phenylene oxide) as the anion-exchange material. Al(OH)3 nanoparticles were added to the junction to facilitate water splitting. The resultant trilayer membrane had an inner bipolar junction (interpenetrating anion-exchange and cation-exchange polymer nanofibers) ∼10 μm in thickness with dense/neat ionomer outer layers. The extended bipolar reaction zone enabled water splitting at ultra-high current densities (up to 1.1 A cm-2) with no evidence of membrane dehydration or blistering, which is common for a planar junction BPM. The novel electrospun membrane morphology offers significant benefits for electrodialysis separations, electrochemical hydrogen generation, and self-humidifying fuel cells, where high operating current densities and membrane stability are required. © The Royal Society of Chemistry 2017.
英文关键词	Alkaline fuel cells; Composite membranes; Ethers; Hydrogen production; Ketones; Membranes; Polyphenylene oxides; Positive ions; Anion exchange material; Cation exchange polymers; Electrospun membranes; Hydrogen generations; Membrane dehydration; Membrane stability; Operating current densities; Sulfonated poly(ether ether ketone)s; Dialysis membranes; dehydration; electrochemical method; ether; fuel cell; hydrogen; membrane; nanoparticle; performance assessment; polymer
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/190465
作者单位	School of Material Science and Engineering, Wuhan University of Technology, Wuhan, Hubei 430070, China; Department of Chemical and Biomolecular Engineering, Vanderbilt University, Nashville, TN 37235, United States
推荐引用方式 GB/T 7714	Shen C.,Wycisk R.,Pintauro P.N.. High performance electrospun bipolar membrane with a 3D junction[J],2017,10(6).
APA	Shen C.,Wycisk R.,&Pintauro P.N..(2017).High performance electrospun bipolar membrane with a 3D junction.Energy & Environmental Science,10(6).
MLA	Shen C.,et al."High performance electrospun bipolar membrane with a 3D junction".Energy & Environmental Science 10.6(2017).