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Defect-Engineered Metal-Organic Frameworks.

Fang Z, Bueken B, De Vos DE, Fischer RA - Angew. Chem. Int. Ed. Engl. (2015)

Bottom Line: It is challenging to structurally characterize the inherent or intentionally created defects of various types, and there have so far been few efforts to comprehensively discuss these issues.Moreover, we will highlight important aspects of "defect-engineering" concepts applied for CNCs, also in comparison with relevant solid materials such as zeolites or COFs.Finally, we discuss the future potential of defect-engineered CNCs.

View Article: PubMed Central - PubMed

Affiliation: Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816 (V.R. China). iamzlfang@njtech.edu.cn.

No MeSH data available.


a) N2 adsorption isotherms of mesoporous R(N)-PCN-125: CH2NH2(1)-, NO2(2)-, NO2-, NH2-, SO3Na(2)-, and SO3H(1)-PCN-125. b), c) Pore-size distribution of NO2(2)-PCN-125 and CH2NH2(1)-PCN-125 calculated by DFT.[27]
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fig11: a) N2 adsorption isotherms of mesoporous R(N)-PCN-125: CH2NH2(1)-, NO2(2)-, NO2-, NH2-, SO3Na(2)-, and SO3H(1)-PCN-125. b), c) Pore-size distribution of NO2(2)-PCN-125 and CH2NH2(1)-PCN-125 calculated by DFT.[27]

Mentions: Wu et al. found that linker vacancies lead to a dramatically enhanced porosity of UiO-66. The pore volume and BET surface area of the samples doped with most linker fragments were found to be 150 % and 60 %, respectively, higher than the theoretical values of the parent material.[19] Furthermore, increased heats of CO2 adsorption and mesopore formation were achieved in PCN-125 derivatives containing functionalized linker fragments (Figure 11).[27] MOF-5 synthesized with DBA also features meso- and macropores with a higher CO2 adsorption capacity compared to parent MOF-5.[66] Moreover, thermally annealed MOF-5 samples with in situ generated benzoate fragments show higher CO2 uptake capacities because of the presence of Zn mCUSs.[69]


Defect-Engineered Metal-Organic Frameworks.

Fang Z, Bueken B, De Vos DE, Fischer RA - Angew. Chem. Int. Ed. Engl. (2015)

a) N2 adsorption isotherms of mesoporous R(N)-PCN-125: CH2NH2(1)-, NO2(2)-, NO2-, NH2-, SO3Na(2)-, and SO3H(1)-PCN-125. b), c) Pore-size distribution of NO2(2)-PCN-125 and CH2NH2(1)-PCN-125 calculated by DFT.[27]
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4510710&req=5

fig11: a) N2 adsorption isotherms of mesoporous R(N)-PCN-125: CH2NH2(1)-, NO2(2)-, NO2-, NH2-, SO3Na(2)-, and SO3H(1)-PCN-125. b), c) Pore-size distribution of NO2(2)-PCN-125 and CH2NH2(1)-PCN-125 calculated by DFT.[27]
Mentions: Wu et al. found that linker vacancies lead to a dramatically enhanced porosity of UiO-66. The pore volume and BET surface area of the samples doped with most linker fragments were found to be 150 % and 60 %, respectively, higher than the theoretical values of the parent material.[19] Furthermore, increased heats of CO2 adsorption and mesopore formation were achieved in PCN-125 derivatives containing functionalized linker fragments (Figure 11).[27] MOF-5 synthesized with DBA also features meso- and macropores with a higher CO2 adsorption capacity compared to parent MOF-5.[66] Moreover, thermally annealed MOF-5 samples with in situ generated benzoate fragments show higher CO2 uptake capacities because of the presence of Zn mCUSs.[69]

Bottom Line: It is challenging to structurally characterize the inherent or intentionally created defects of various types, and there have so far been few efforts to comprehensively discuss these issues.Moreover, we will highlight important aspects of "defect-engineering" concepts applied for CNCs, also in comparison with relevant solid materials such as zeolites or COFs.Finally, we discuss the future potential of defect-engineered CNCs.

View Article: PubMed Central - PubMed

Affiliation: Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816 (V.R. China). iamzlfang@njtech.edu.cn.

No MeSH data available.