Functionalized NU-1000 with an Iridium Organometallic Fragment: SO₂ Capture Enhancement

Abstract

A new material, MOF-type [Ir]@NU-1000, was accessed from the incorporation of the iridium organometallic fragment [Ir­{κ3(P,Si,Si)­PhP­(o-C6H4CH2Si i Pr2)2}] into NU-1000. The new material incorporates less than 1 wt % of Ir­(III) (molar ratio Ir to NU-1000, 1:11), but the heat of adsorption for SO2 is significantly enhanced with respect to that of NU-1000. Being a highly promising adsorbent for SO2 capture, [Ir]@NU-1000 combines exceptional SO2 uptake at room temperature and outstanding cyclability. Additionally, it is stable and can be regenerated after SO2 desorption at low temperature.

Capture and Separation of SO2 Traces in Metal–Organic Frameworks via Pre‐Synthetic Pore Environment Tailoring by Methyl Groups

“…[15][16][17][18][19][20][21] Among them, MOFs seem most promising due to their outstanding features including reticular synthesis,t unable structure,a nd high porosity. [22][23][24][25] Up to now,t here is still as mall number of MOFs reported for SO 2 adsorption [26][27][28] when compared to CO 2 and CH 4 sorption. Less effort was even given to targeted trace SO 2 removal, that is,h igh SO 2 uptake at low partial pressure.I ng eneral, the capacity of trace SO 2 removal is quantified by the SO 2 uptake amount at apartial pressure of 0.1 bar or even 0.01 bar.…”

“…[ 15 , 16 , 17 , 18 , 19 , 20 , 21 ] Among them, MOFs seem most promising due to their outstanding features including reticular synthesis, tunable structure, and high porosity. [ 22 , 23 , 24 , 25 ] Up to now, there is still a small number of MOFs reported for SO 2 adsorption[ 26 , 27 , 28 ] when compared to CO 2 and CH 4 sorption. Less effort was even given to targeted trace SO 2 removal, that is, high SO 2 uptake at low partial pressure.…”

Conductive Fibrous Metal‐Cyanoquinone Complexes with Excellent Microwave Absorption and Shielding Effectiveness at Ultrathin Thickness

“…During the past several decades, metal–organic complexes have attracted great attention. By virtue of unique physical and chemical properties, these complexes show great application potential in various areas, such as in energy, [ 22,23 ] catalysis, [ 24,25 ] biomedicine, [ 26 ] and environment treatment. [ 27,28 ] For example, Gorla et al.…”

“…synthesized a new type metal–organic complex (NU‐1000), which is a promising materials of SO 2 sensor due to its enhancement of the SO 2 adsorption properties. [ 23 ] Wang et al. have reported a metal–organic complex constructed from TATAT and Zn 2+ for the delivery of anticancer drug 5‐fluorouracil.…”

Einlagerung und Abtrennung von SO2‐Spuren in Metall‐organischen Gerüstverbindungen durch präsynthetische Anpassung der Porenumgebung mit Methylgruppen

“…Unter ihnen scheinen MOFs aufgrund ihrer herausragenden Eigenschaften, wie die Synthese von Netzwerken, einstellbare Struktur und hohe Porosität, am vielversprechendsten [22–25] . Bis jetzt wurde nur über eine geringe Anzahl von MOFs zur SO 2 ‐Adsorption berichtet, [26–28] im Vergleich zur CO 2 ‐ und CH 4 ‐Sorption. Noch weniger wurde über die gezielte SO 2 ‐Spurenentfernung, d. h. eine hohe SO 2 ‐Aufnahme bei niedrigem Partialdruck, berichtet.…”