{"product_id":"cgasmofuio66coohzr","title":"UIO-66-(COOH)2(Zr) Metal Organic Frameworks (MOFs) Powder for Gas Absorption and Separation, CGASMOFUIO66COOHZr","description":"\u003cp\u003eUiO-66-(COOH)2 (also referred to as UiO-66-2COOH or Zr6O4(OH)4[BDC-(COOH)2]6) is an isoreticular, dicarboxylic acid-functionalized zirconium metal-organic framework with an fcu topology. Synthesized using 1,2,4,5-benzenetetracarboxylic acid (pyromellitic acid, H4PTEC), two of the four carboxylate groups coordinate to the Zr6 clusters to form the 3D network, while the remaining two uncoordinated -COOH groups project directly into the pore channels.\u003c\/p\u003e\n\u003cp\u003eFor Gas Absorption \u0026amp; Separation, the key structural and functional features of the UIO-66-(COOH)2 are: (1) \u003cstrong\u003eAperture Constriction \u0026amp; Ultramicroporosity\u003c\/strong\u003e: \u003cem\u003eOctahedral Cages\u003c\/em\u003e: Free internal diameter of ~ 8.5–9.5 \u003cspan\u003eÅ \u003c\/span\u003e(constricted from 11 \u003cspan\u003eÅ\u003c\/span\u003e in pristine UiO-66). \u003cem\u003eTetrahedral Cages\u003c\/em\u003e: Free internal diameter of ~ 5.5–6.0 \u003cspan\u003eÅ\u003c\/span\u003e. \u003cem\u003eTriangular Window Apertures:\u003c\/em\u003e\u003cspan class=\"\"\u003e Effective aperture narrowed to \u003c\/span\u003e\u003cspan\u003e\u003cspan class=\"math-inline\"\u003e~ 3.6–4.2 Å\u003c\/span\u003e\u003c\/span\u003e\u003cspan class=\"\"\u003e by the protruding \u003c\/span\u003e\u003cspan class=\"math-inline\"\u003e-COOH\u003c\/span\u003e\u003cspan class=\"\"\u003e groups,\u003c\/span\u003e\u003cspan class=\"\"\u003e enhancing size-exclusion sieving for small gas molecules. \u003c\/span\u003e(2) \u003cstrong\u003eBrønsted Acidic \u0026amp; Polar Pore Walls\u003c\/strong\u003e: Dense, uncoordinated -COOH groups line the channels, providing polar hydrogen-bonding donors (-OH) and carbonyl acceptors (C=O). This generates high electrostatic field gradients that enhance interactions with quadrupolar and polar guest molecules. (3) \u003cstrong\u003eRobust Chemical Stability\u003c\/strong\u003e: Maintains Zr(IV)–O coordination bond stability, resisting boiling water, high-humidity streams, and strongly acidic media (pH=0.5–7).\u003c\/p\u003e\n\u003ctable border=\"1\" style=\"width: 100.071%; height: 257.125px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 26.875px;\"\u003e\n\u003ctd style=\"width: 24.6929%; height: 26.875px;\"\u003ePart Number\u003c\/td\u003e\n\u003ctd style=\"width: 72.8334%; height: 26.875px;\"\u003eCGASMOFUIO66COOHZr (C-GAS-MOF-UIO66COOHZr)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 26.875px;\"\u003e\n\u003ctd style=\"width: 24.6929%; height: 26.875px;\"\u003eCAS\u003c\/td\u003e\n\u003ctd style=\"width: 72.8334%; height: 26.875px;\"\u003e1458048-15-1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 26.875px;\"\u003e\n\u003ctd style=\"width: 24.6929%; height: 26.875px;\"\u003eColor\u003c\/td\u003e\n\u003ctd style=\"width: 72.8334%; height: 26.875px;\"\u003eWhite Powder\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 26.875px;\"\u003e\n\u003ctd style=\"width: 24.6929%; height: 26.875px;\"\u003eAverage Sizes\u003c\/td\u003e\n\u003ctd style=\"width: 72.8334%; height: 26.875px;\"\u003e100-300 nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 26.875px;\"\u003e\n\u003ctd style=\"width: 24.6929%; height: 26.875px;\"\u003e\u003cem\u003eBET\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 72.8334%; height: 26.875px;\"\u003e~600-950 m2\/g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 26.875px;\"\u003e\n\u003ctd style=\"width: 24.6929%; height: 26.875px;\"\u003e\u003cem\u003ePore Size\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 72.8334%; height: 26.875px;\"\u003e0.1-0.7 nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 71.2px;\"\u003e\n\u003ctd style=\"width: 24.6929%; height: 71.2px;\"\u003e\u003cem\u003ePrimary Applications\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 72.8334%; height: 71.2px;\"\u003e\n\u003cp\u003eGas absorption, storage, and separation. \u003c\/p\u003e\n\u003cp\u003eWastewater treatment, ion separation\u003c\/p\u003e\n\u003cp\u003eHeterogeneous catalysis \u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 24.675px;\"\u003e\n\u003ctd style=\"width: 24.6929%; height: 24.675px;\"\u003e\u003cem\u003ePackage Grade\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 72.8334%; height: 24.675px;\"\u003e5 g\/bottle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cb\u003e\u003cbr\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eReferences:\u003c\/b\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cb\u003e\u003c\/b\u003e\u003ca href=\"https:\/\/pubs.acs.org\/jceaax\/article-abstract\/64\/11\/4724\/901865\/Adsorption-Equilibrium-of-Carbon-Dioxide-Methane?redirectedFrom=fulltext\"\u003eM. A. Moreira, et al., Adsorption Equilibrium of Carbon Dioxide, Methane, Nitrogen, Carbon Monoxide, and Hydrogen on UiO-66(Zr)_(COOH)2, J. Chem. Eng. Data (2019) 64 (11): 4724–4732.\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/pubs.acs.org\/aamick\/article-abstract\/8\/40\/27394\/771339\/UiO-66-Type-Metal-Organic-Framework-with-Free?redirectedFrom=fulltext\"\u003eJ. Y. Song, et al., UiO-66-Type Metal–Organic Framework with Free Carboxylic Acid: Versatile Adsorbents via H‑bond for Both Aqueous and Nonaqueous Phases, ACS Appl. Mater. Interfaces (2016) 8 (40): 27394–27402.\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"TYXC","offers":[{"title":"Default Title","offer_id":48259482419430,"sku":"CGASMOFUIO66COOHZr","price":399.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0774\/6591\/1526\/files\/CGASMOFUIO66COOHZr_main.jpg?v=1788107616","url":"https:\/\/echemsupplies.com\/products\/cgasmofuio66coohzr","provider":"EChem Supplies","version":"1.0","type":"link"}