{"product_id":"cfbefcspeekp","title":"Sulfonated Polyether Ether Ketone (SPEEK, NEXIONIC) Powder for Flow Battery, Electrolyzer, and Fuel Cell, CFBEFCSPEEKP","description":"\u003cp\u003eSulfonated Polyether Ether Ketone (SPEEK) in powder form is a versatile ion-exchange material used to fabricate membranes for fuel cells, redox flow batteries, and water electrolysis. It is favored as a low-cost, environmentally friendly alternative to perfluorinated membranes like Nafion. SPEEK is produced by the sulfonation of PEEK (Polyether Ether Ketone) powder. PEEK itself is hydrophobic and non-conductive; by treating it with concentrated sulfuric acid (H2SO4), sulfonic acid groups (-SO3H) are attached to the polymer backbone. Its main application in electrochemistry is as ion-exchange membrane for redox flow battery, electrolyzer, and fuel cell. \u003c\/p\u003e\n\u003ctable style=\"width: 100%; height: 192.637px;\" width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 40.2375px;\"\u003e\n\u003ctd style=\"width: 35.0575%; height: 40.2375px;\"\u003e\u003cem\u003ePart Number\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 64.7626%; height: 40.2375px;\"\u003e\n\u003cp\u003e\u003cspan\u003eCFBEFCSPEEKP (C-FBEFC-SPEEKP)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 35.0575%;\"\u003e\u003cem\u003eChemical Structure\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 64.7626%;\"\u003e\n\u003cdiv style=\"text-align: left;\"\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: 35.0575%; height: 35.6px;\"\u003e\u003cem\u003eAppearance\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 64.7626%; height: 35.6px;\"\u003e\n\u003cp\u003e\u003cspan\u003eOff-white to slight yellow powder\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: 35.0575%; height: 35.6px;\"\u003e\u003cem\u003eSulfonation Degree \u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 64.7626%; height: 35.6px;\"\u003e\n\u003cp\u003e60% (Other sulfonation degrees, such as 50 %, 70%, 80% can be supplied upon request)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 35.0575%;\"\u003e\u003cem\u003eSolubility\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 64.7626%;\"\u003e\n\u003cp\u003e\u003cspan\u003eDissolved in NMP, DMSO, DMF solvents\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 35.0575%;\"\u003e\u003cem\u003ePackage Grade\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 64.7626%;\"\u003e\n\u003cp\u003e\u003cspan\u003e50 g\/bottle\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":"YYSJ","offers":[{"title":"Default Title","offer_id":47272369684710,"sku":"CFBEFCSPEEKP","price":119.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0774\/6591\/1526\/files\/CFBEFCSPEEKP_main.png?v=1768542407","url":"https:\/\/echemsupplies.com\/products\/cfbefcspeekp","provider":"EChem Supplies","version":"1.0","type":"link"}