{"product_id":"cfbefccemspeekn","title":"Sulfonated Polyether Ether Ketone (SPEEK, NEXIONIC) Cation-Exchange Membrane for Flow Battery, Electrolyzer, and Fuel Cell, CFBEFCCEMSPEEKN","description":"\u003cp\u003eNEXIONIC SPEEK (Sulfonated Polyether Ether Ketone) membranes are high-performance hydrocarbon-based cation-exchange and proton-conducting polymer membranes. Engineered as a cost-effective, environmentally friendly alternative to perfluorosulfonic acid (PFSA, e.g., Nafion) membranes, they are widely deployed in Vanadium Redox Flow Batteries (VRFB), Direct Methanol Fuel Cells (DMFC), Proton Exchange Membrane Fuel Cells (PEMFC), and electrodialysis\/water treatment systems. The membrane backbone consists of aromatic polyether ether ketone modified with sulfonic acid groups (-SO3H) to introduce fixed negative charges and facilitate cation\/proton transport.\u003c\/p\u003e\n\u003ctable style=\"width: 100%; height: 411.037px;\" width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 40.2375px;\"\u003e\n\u003ctd style=\"width: 34.9501%; height: 40.2375px;\"\u003e\u003cem\u003ePart Number\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 64.729%; height: 40.2375px;\"\u003e\n\u003cp\u003e\u003cspan\u003eCFBEFCCEMSPEEKN (C-FBEFC-CEMSPEEKN)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 118px;\"\u003e\n\u003ctd style=\"width: 34.9501%; height: 118px;\"\u003e\u003cem\u003eChemical Formula\/Structure\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 64.729%; height: 118px;\"\u003e\n\u003cp\u003e\u003cspan\u003e(C₁₉H₁₂O₆S)n(C₁₉H₁₂O₃)m\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv style=\"text-align: start;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0774\/6591\/1526\/files\/SPEEK_molecular_structure_160x160.png?v=1768579884\" alt=\"\" style=\"margin-bottom: 16px; float: none;\"\u003e\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 35.6px;\"\u003e\n\u003ctd style=\"width: 34.9501%; height: 35.6px;\"\u003e\u003cem\u003eAppearance\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 64.729%; height: 35.6px;\"\u003e\n\u003cp\u003e\u003cspan\u003eTransparent\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 55.2px;\"\u003e\n\u003ctd style=\"width: 34.9501%; height: 55.2px;\"\u003e\u003cem\u003eSulfation Degree \u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 64.729%; height: 55.2px;\"\u003e\n\u003cp\u003e60%\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 55.2px;\"\u003e\n\u003ctd style=\"width: 34.9501%; height: 55.2px;\"\u003e\u003cem\u003eDimension\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 64.729%; height: 55.2px;\"\u003e\n\u003cp\u003e\u003cspan\u003e(1) T 25um * W10cm * L 10cm\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e(2) T 25um * W20cm * L 20cm\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e(3) T 50um * W10cm * L 10cm\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e(4) T 50um * W20cm * L 20cm\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e(5) T 75um * W10cm * L 10cm\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e(6) T 75um * W20cm * L 20cm\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e(Other membrane sizes can be supplied upon request)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 35.6px;\"\u003e\n\u003ctd style=\"width: 34.9501%; height: 35.6px;\"\u003e\u003cem\u003eIon Conductivity\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 64.729%; height: 35.6px;\"\u003e\n\u003cp\u003e\u003cspan\u003e14.5 mS\/cm\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 35.6px;\"\u003e\n\u003ctd style=\"width: 34.9501%; height: 35.6px;\"\u003e\u003cem\u003eTensile Strength\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 64.729%; height: 35.6px;\"\u003e\n\u003cp\u003e\u003cspan\u003e24-28 MPa\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 35.6px;\"\u003e\n\u003ctd style=\"width: 34.9501%; height: 35.6px;\"\u003e\u003cem\u003ePackage Grade\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 64.729%; height: 35.6px;\"\u003e\n\u003cp\u003e\u003cspan\u003e1 pcs\/pack\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eReferences\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e(1）\u003ca href=\"https:\/\/www.sciencedirect.com\/science\/article\/abs\/pii\/S0376738808007618\"\u003eQ. Luo, et al., Preparation and characterization of Nafion\/SPEEK layered composite membrane and its application in vanadium redox flow battery, J. Membrane Sci., 2008, 325, 553-558\u003c\/a\u003e. \u003c\/p\u003e\n\u003cp\u003e(2) \u003ca href=\"https:\/\/www.sciencedirect.com\/science\/article\/abs\/pii\/S0376738820310255\"\u003eT. Huang, et al., Impact of SPEEK on PEEK membranes: Demixing, morphology and performance enhancement in lithium membrane extraction, J. Membrane Sci., 2020, 615, 118448.\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"CLKXZ","offers":[{"title":"T 25um * W 10cm * L10cm","offer_id":48206118584550,"sku":"CFBEFCCEMSPEEKNT25W10L10","price":109.0,"currency_code":"USD","in_stock":true},{"title":"T 25um * W 20cm * L20cm","offer_id":48206118617318,"sku":"CFBEFCCEMSPEEKNT25W20L20","price":349.0,"currency_code":"USD","in_stock":true},{"title":"T 50um * W 10cm * L10cm","offer_id":48206118650086,"sku":"CFBEFCCEMSPEEKNT50W10L10","price":129.0,"currency_code":"USD","in_stock":true},{"title":"T 50um * W 20cm * L20cm","offer_id":48206118682854,"sku":"CFBEFCCEMSPEEKNT50W20L20","price":389.0,"currency_code":"USD","in_stock":true},{"title":"T 75um * W 10cm * L10cm","offer_id":48206153875686,"sku":"CFBEFCCEMSPEEKNT75W10L10","price":159.0,"currency_code":"USD","in_stock":true},{"title":"T 75um * W 20cm * L20cm","offer_id":48206153908454,"sku":"CFBEFCCEMSPEEKNT75W20L20","price":449.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0774\/6591\/1526\/files\/CFBEFCCEMSPEEKN_main.jpg?v=1786992774","url":"https:\/\/echemsupplies.com\/products\/cfbefccemspeekn","provider":"EChem Supplies","version":"1.0","type":"link"}