Qhov sib txawv tseem ceeb ntawm MOF thiab COF yog tias MOF muaj cov hlau atoms lossis pawg ua cov nodes nrog cov organic linkers, whereas COF muaj cov tsis yog hlau.
Lub sij hawm MOF sawv cev rau Hlau Organic Framework, thaum lub sij hawm COF stands rau Covalent Organic Framework.
MOF yog dab tsi?
MOF los yog hlau organic moj khaum yog cov tebchaw uas muaj hlau ions los yog pawg uas tau koom tes rau cov organic ligands tsim 1D, 2D, los yog 3D qauv. Cov tebchaw no poob rau hauv subclass ntawm kev sib koom ua ke polymers vim lawv qhov tshwj xeeb ntawm qhov feem ntau ntxeem tau. Hauv MOFs, cov organic ligands qee zaum hu ua "struts" lossis "linkers".
Daim duab 01: Electron Microscope Duab ntawm Cov Noob hauv MOF Crystals
Kev ua tiav, peb tuaj yeem sau npe cov txheej txheem hlau-organic raws li kev sib koom tes sib koom tes muaj cov organic ligands nrog cov voids. Hom kev sib koom tes no tuaj yeem ua rau kev sib koom ua ke txuas ntxiv los ntawm kev rov ua dua ntawm kev sib koom tes. Qhov kev txuas ntxiv no tshwm sim hauv ib qhov me me tab sis nrog kev sib txuas ntawm ob lossis ntau dua cov saw hlau, cov voj voog, lossis cov qauv muab kauv, uas ua rau qhov txuas ntxiv ntawm MOF hauv ob lossis peb qhov ntev.
Qee zaum cov pores hauv MOFs ruaj khov thaum tshem tawm cov kuab tshuaj. Yog li ntawd, peb tuaj yeem rov ua qhov chaw ntawd nrog lwm qhov sib xyaw. Qhov no ua rau MOFs muaj txiaj ntsig zoo rau kev khaws cia cov pa roj, suav nrog cov roj hydrogen thiab carbon dioxide. Ntxiv mus, MOFs yog qhov tseem ceeb hauv kev ua kom huv si, kev sib cais roj, kev kho dej, catalysis thiab ua supercapacitors.
COF yog dab tsi?
COF lossis covalent organic moj khaum yog cov khoom sib txuas uas tuaj yeem tsim 2D lossis 3D cov qauv, suav nrog cov ntawv cog lus ntawm cov koom haum organic. Cov tebchaw no tsim los ntawm cov tshuaj tiv thaiv ntawm cov organic precursors, thiab cov tshuaj tiv thaiv muaj zog covalent bonds tsim cov khoom ntxeem tau, ruaj khov, thiab crystalline. Cov qauv porous crystalline no feem ntau muaj cov chav tsev thib ob uas tuaj yeem sib sau ua ke los ua ib lub sijhawm ua haujlwm thiab ntxeem tau. Nyob rau hauv no tsim, ib tug infinite lub moj khaum daim ntawv los ntawm txawv lwm theem tsev chav tsev ob peb ua ke, uas ua rau cov khoom tshwj xeeb ntawm cov khoom. Cov khoom tshwj xeeb no ua rau cov khoom sib xyaw tseem ceeb hauv kev sib cais, khaws cia, thiab heterogeneous catalysis.
Daim duab 02: Cov Tsev Kawm Ntawv Qib Siab sib txawv
Kev sib txuas ntawm covalent organic moj khaum yog ua tiav siv cov tshuaj tiv thaiv boron condensation, qhov twg cov tshuaj tiv thaiv molecular dehydration tshwm sim ntawm boronic acids. Lwm txoj kev uas tuaj yeem siv rau qhov kev sib txuas no yog triazine raws trimerization.
Qhov txawv ntawm MOF thiab COF yog dab tsi?
Lub sij hawm MOF sawv cev rau Hlau Organic Framework, thaum lub sij hawm COF stands rau Covalent Organic Framework. Qhov sib txawv tseem ceeb ntawm MOF thiab COF yog tias MOF muaj cov hlau atoms lossis pawg ua cov nodes nrog cov organic linkers, thaum COF muaj cov tsis yog hlau. Ntxiv mus, MOF tuaj yeem muaj nyob hauv 1D, 2D, lossis 3D qauv, qhov COF tshwm sim hauv 2D thiab 3D qauv. Ntxiv mus, MOFs yog ib qho tseem ceeb hauv kev ua kom huv si, kev sib cais roj, kev kho dej, catalysis thiab muaj txiaj ntsig zoo li supercapacitors, thaum COFs muaj txiaj ntsig zoo hauv kev cia thiab kev sib cais, uas suav nrog hydrogen cia thiab methane cia, rau luminescence, carbon capture, catalysis, thiab lwm yam.
Cov lus hauv qab no nthuav tawm qhov sib txawv ntawm MOF thiab COF kom ntxaws ntxiv.
Summary – MOF vs COF
MOF sawv cev rau Hlau Organic Framework thaum COF sawv rau Covalent Organic Framework. Qhov sib txawv tseem ceeb ntawm MOF thiab COF yog tias MOF muaj cov hlau atoms lossis pawg ua cov nodes nrog cov organic linkers whereas COF muaj cov tsis yog hlau.
