{"product_id":"chtefccempbin","title":"Polybenzimidazole (PBI) Cation-Exchange Membrane (NEXIONIC, T=15-45 um) for High-Temperature Electroyzer and Fuel Cell, CHTEFCCEMPBIN","description":"\u003cp\u003eNEXIONIC PBI (Polybenzimidazole) membranes are a class of high-performance, non-fluorinated polymer electrolyte membranes engineered specifically for High-Temperature Proton Exchange Membrane (HT-PEM) fuel cells, high-temperature water electrolyzers, and gas separation applications. While low-temperature PEMs (like standard perfluorosulfonic acid \/ Nafion membranes) require liquid water to facilitate proton transfer and are limited to operating below ~ 80°C, PBI-based membranes rely on phosphoric acid (H3PO4) doping to enable fast proton conduction under anhydrous or low-humidity conditions across 120°C to 200°C.\u003c\/p\u003e\n\u003cp\u003eThe key application fields are: (1) \u003cstrong\u003eReformed Methanol Fuel Cells (RMFC)\u003c\/strong\u003e: Direct integration with on-board methanol\/hydrocarbon steam reformers without requiring ultra-pure water gas shift (WGS) purification stages. (2) \u003cstrong\u003eStationary Combined Heat and Power (CHP)\u003c\/strong\u003e: High-temperature waste heat rejection (\u0026gt;100°C) directly usable for domestic or industrial hot water and heating. (3) \u003cstrong\u003eElectrochemical Hydrogen Pumps \/ Purifiers\u003c\/strong\u003e: Separation of pure hydrogen from synthesis gas or industrial tailgas streams at elevated temperatures. (4) \u003cstrong\u003eHT-PEM Water Electrolysis \/ Gas Separation\u003c\/strong\u003e: Electrochemical processing under elevated temperatures to boost kinetics and reduce overpotentials.\u003c\/p\u003e\n\u003ctable width=\"100%\" style=\"width: 100%; height: 565.237px;\"\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\u003eCHTEFCCEMPBIN (C-HTEFC-CEM-PBIN)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 86.4px;\"\u003e\n\u003ctd style=\"width: 35.0575%; height: 86.4px;\"\u003e\u003cem\u003eChemical Structure\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 64.7626%; height: 86.4px;\"\u003e\n\u003cdiv style=\"text-align: start;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0774\/6591\/1526\/files\/CRFBIEMPBI_molecular_structure_160x160.png?v=1768589215\" 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\u003eBrown or Dark Brown\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 178px;\"\u003e\n\u003ctd style=\"width: 35.0575%; height: 178px;\"\u003e\u003cem\u003eMembrane Thickness \u0026amp; Molecular Weight\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 64.7626%; height: 178px;\"\u003e\n\u003cp\u003e\u003cspan\u003e(1) T=15 um, Mw = 12000\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e(2) T=25 um, Mw = 40000\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e(3) T=30 um, Mw = 120000\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e(4) T=35 um, Mw = 40000\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e(5) T=45 um, Mw = 120000\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 11.4px;\"\u003e\n\u003ctd style=\"width: 35.0575%; height: 11.4px;\"\u003e\u003cem\u003eSheet Dimensions\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 64.7626%; height: 11.4px;\"\u003e\n\u003cp\u003e\u003cspan\u003e(1) 10cm * 10cm\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e(2) 20cm * 20 cm\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eOther large dimensions 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: 35.0575%; height: 35.6px;\"\u003e\u003cem\u003eOperation Temperature\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 64.7626%; height: 35.6px;\"\u003e\n\u003cp\u003e\u003cspan\u003e120–180 °C\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 71.2px;\"\u003e\n\u003ctd style=\"width: 35.0575%; height: 71.2px;\"\u003e\u003cem\u003ePretreatment Status\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 64.7626%; height: 71.2px;\"\u003e\n\u003cp\u003e\u003cspan\u003ePhosphoric acid pretreatment is required.\u003c\/span\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\u003cspan\u003eClean the membrane with DI H2O\/ethanol for 10-20 min\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eImmersed in 85-10% H3PO4 for 1-48 h at 80-120°C\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eRising with DI H2O for multiple times to remove free H3PO4\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDry the membrane at low temperature (\u0026lt;60°C) for 12-14 h\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ol\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\u003eProton Conductivity\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 64.7626%; height: 35.6px;\"\u003e\n\u003cp\u003e\u003cspan\u003e~0.1 S\/cm (at 160°C, anhydrous)\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\u003eAcid Concentration for Operation\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 64.7626%; height: 35.6px;\"\u003e\n\u003cp\u003e\u003cspan\u003e55 wt% (+\/-4 wt%)\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\u003ePackage Grade\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 64.7626%; 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\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eReferences\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e(1）\u003ca href=\"https:\/\/pubs.acs.org\/doi\/abs\/10.1021\/acsaem.3c00522\"\u003eK. Likit-anurak, et al., Polybenzimidazole Membranes as Nafion Replacement in Aqueous HCl Electrolyzers, ACS Appl. Energy Mater. 2023, 6, 10, 5429–5434\u003c\/a\u003e. \u003c\/p\u003e\n\u003cp\u003e(2) \u003ca href=\"https:\/\/www.sciencedirect.com\/science\/article\/abs\/pii\/S2405829721005936\"\u003eQ. Li, et al., PBI-Based Polymer Membranes for High Temperature Fuel Cells – Preparation, Characterization and Fuel Cell Demonstration, Fuel Cells, 2004, 4, 147-159.\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"CLKXZ","offers":[{"title":"T=15 um (10cm * 10cm)","offer_id":48200299086054,"sku":"CHTEFCCEMPBINT15S1010","price":69.0,"currency_code":"USD","in_stock":true},{"title":"T=15 um (20cm * 20cm)","offer_id":48201585262822,"sku":"CHTEFCCEMPBINT15S2020","price":229.0,"currency_code":"USD","in_stock":true},{"title":"T=25 um (10cm * 10cm)","offer_id":48200299118822,"sku":"CHTEFCCEMPBINT25S1010","price":79.0,"currency_code":"USD","in_stock":true},{"title":"T=25 um (20cm * 20cm)","offer_id":48200299151590,"sku":"CHTEFCCEMPBINT25S2020","price":239.0,"currency_code":"USD","in_stock":true},{"title":"T=30 um (10cm * 10cm)","offer_id":48200299184358,"sku":"CHTEFCCEMPBINT30S1010","price":79.0,"currency_code":"USD","in_stock":true},{"title":"T=30 um (20cm * 20cm)","offer_id":48201585295590,"sku":"CHTEFCCEMPBINT30S2020","price":239.0,"currency_code":"USD","in_stock":true},{"title":"T=35 um (10cm * 10cm)","offer_id":48201585328358,"sku":"CHTEFCCEMPBINT35S1010","price":89.0,"currency_code":"USD","in_stock":true},{"title":"T=35 um (20cm * 20cm)","offer_id":48201585361126,"sku":"CHTEFCCEMPBINT35S2020","price":249.0,"currency_code":"USD","in_stock":true},{"title":"T=45 um (10cm * 10cm)","offer_id":48201585393894,"sku":"CHTEFCCEMPBINT45S1010","price":89.0,"currency_code":"USD","in_stock":true},{"title":"T=45 um (20cm * 20cm)","offer_id":48201585426662,"sku":"CHTEFCCEMPBINT45S2020","price":249.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0774\/6591\/1526\/files\/CHTEFCCEMPBIN_main.jpg?v=1786815785","url":"https:\/\/echemsupplies.com\/products\/chtefccempbin","provider":"EChem Supplies","version":"1.0","type":"link"}