{"product_id":"csbcsmhpc15","title":"Macroporous Hierarchical-Porous-Carbon (HPC-15) for Supercapacitor, Battery, and Catalyst Support, 5 g\/bottle, CSBCSMHPC15","description":"\u003cp\u003eIn electrochemical systems, macroporous carbon (pore diameters \u0026gt; 50 nm) acts as the \"high-speed highway\" of the electrode. While micropores provide the high surface area needed for charge storage, macropores are critical for mass transport, especially in high-power applications where ions must move rapidly through the material.\u003c\/p\u003e\n\u003cp\u003eIn standard supercapacitors, \"ion crowding\" in micropores limits how fast you can charge the device. Macroporous networks solve this: (1) \u003cstrong\u003eIon Reservoirs\u003c\/strong\u003e: Macropores act as \"buffer tanks\" for electrolyte ions, ensuring a constant supply to the smaller pores during rapid discharge. (2) \u003cstrong\u003eLow ESR\u003c\/strong\u003e: They reduce the Equivalent Series Resistance (ESR), allowing for massive power bursts (e.g., for regenerative braking in EVs or power grid stabilization). (3) \u003cstrong\u003ePerformance\u003c\/strong\u003e: Hierarchical macroporous carbons can reach capacitances of 240–40 F\/g even at high current densities (\u0026gt; 20 A\/g).\u003c\/p\u003e\n\u003cp\u003eMacroporous carbon \"cages\" are used to host sulfur cathodes: (1) \u003cstrong\u003eVolume Expansion\u003c\/strong\u003e: Sulfur expands by ~80% during lithiation. The large internal volume of macropores provides the necessary space to accommodate this expansion without breaking the electrode. (2) \u003cstrong\u003ePolysulfide Trapping\u003c\/strong\u003e: When combined with N-doping, the macroporous walls can chemically trap polysulfides, reducing the \"shuttle effect\" that plagues Li-S batteries.\u003c\/p\u003e\n\u003cp\u003eFor water electrolysis application, macroprous carbon are used as 3D support structures for catalysts like FeCoNi or IrRuOx. (1) \u003cstrong\u003eGas Management\u003c\/strong\u003e: Large pores (\u0026gt; 100 um) are essential for bubble detachment. If pores are too small, H2 or O2 bubbles get trapped, \"blinding\" the catalyst and increasing resistance. (2) \u003cstrong\u003eMassive Loading\u003c\/strong\u003e: The 3D macroporous framework allows for high mass loading of catalysts without clogging the electrode, enabling industrial-scale current densities (\u0026gt; 1000 mA\/cm2).\u003c\/p\u003e\n\u003ctable width=\"100%\" style=\"width: 100%; height: 242.662px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 35.6px;\"\u003e\n\u003ctd style=\"width: 33.0935%; height: 35.6px;\"\u003e\u003cem\u003ePart Number\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.7266%; height: 35.6px;\"\u003e\n\u003cp\u003e\u003cspan\u003eCSBCSMHPC15 (C-SBCS-MHPC15)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 53.375px;\"\u003e\n\u003ctd style=\"width: 33.0935%; height: 53.375px;\"\u003e\u003cem\u003eSpecific Capacitance\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.7266%; height: 53.375px;\"\u003e\n\u003cdiv style=\"text-align: start;\"\u003e240-400 F\/g (aqueous system)\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 27.2875px;\"\u003e\n\u003ctd style=\"width: 33.0935%; height: 27.2875px;\"\u003e\u003cem\u003eSurface Area\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.7266%; height: 27.2875px;\"\u003e\n\u003cdiv style=\"text-align: start;\"\u003e500-600 m2\/g\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 35.6px;\"\u003e\n\u003ctd style=\"width: 33.0935%; height: 35.6px;\"\u003e\u003cem\u003ePore Volume\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.7266%; height: 35.6px;\"\u003e\n\u003cp\u003e0.45-0.6 cm3\/g   \u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 35.6px;\"\u003e\n\u003ctd style=\"width: 33.0935%; height: 35.6px;\"\u003e\u003cem\u003ePore Size\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.7266%; height: 35.6px;\"\u003e\n\u003cp\u003e~100 nm (macropore\u0026gt;95%, a small portion is mesopore)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 33.0935%; height: 19.6px;\"\u003e\u003cem\u003ePackage Size\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.7266%; height: 19.6px;\"\u003e5 g\/bottle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eNotes\u003c\/strong\u003e: Please try to store the macroporous carbon (HPC-15) powder in a dry place.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eReferences\u003c\/strong\u003e: \u003c\/span\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\u003cspan\u003e\u003ca href=\"https:\/\/pubs.acs.org\/doi\/abs\/10.1021\/am400206r\"\u003eH. Sun, et al. Template-Free Synthesis of Renewable Macroporous Carbon via Yeast Cells for High-Performance Supercapacitor Electrode Materials, ACS Appl. Mater. Interfaces 2013, 5, 6, 2261–2268\u003c\/a\u003e.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003e\u003ca href=\"https:\/\/link.springer.com\/article\/10.1007\/s10853-012-6576-y\"\u003eQ. Chen, et al. Effects of macropore size on structural and electrochemical properties of hierarchical porous carbons, 2012, 47, 6444–6450\u003c\/a\u003e. \u003c\/span\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"JWTC","offers":[{"title":"Default Title","offer_id":47359467290854,"sku":"CSBCSMHPC15","price":129.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0774\/6591\/1526\/files\/CSBCSMHPC15_main.png?v=1771226081","url":"https:\/\/echemsupplies.com\/products\/csbcsmhpc15","provider":"EChem Supplies","version":"1.0","type":"link"}