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Acetylacetone covalent triazine framework : an efficient carbon capture and storage material and a highly stable heterogeneous catalyst

(2018) CHEMISTRY OF MATERIALS. 30(12). p.4102-4111
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Abstract
We present, for the first time, covalent triazine frameworks functionalized with acetylacetonate group (acacCTFs). They are obtained from the polymerization of 4,4'-malonyldibenzonitrile under ionothermal conditions and exhibit BET surface areas up to 1626 m(2)/g. The materials show excellent CO2 uptake (3.30 mmol/g at 273 K and 1 bar), H-2 storage capacity (1.53 wt % at 77 K and 1 bar), and a good CO2/N-2 selectivity (up to 46 at 298 K). The enhanced CO2 uptake value and good selectivity are due to the presence of dual polar sites (N and O) throughout the material. In addition, acac-CTF was used to anchor VO(acac)(2) as a heterogeneous catalyst. The V@acacCTF showed outstanding reactivity and reusability for the modified Mannich-type reaction with a higher turnover number than the homogeneous catalyst. The higher reactivity and reusability of the catalyst come from the coordination of the vanadyl ions to the acetyl acetonate groups present in the material. The strong metalation is confirmed from Fourier transform infrared analysis, C-13 MAS NMR spectral analysis, and X-ray photoelectron spectroscopy measurement. Detailed characterization of the V@acac-CTF reveals that electron donation from O boolean AND O of the acetylacetonate group to VO(acac)(2), combined with the very high surface area of acac-CTF, is responsible for the stabilization of the catalyst. Overall, this contribution highlights the necessity of stable catalytic binding sites on heterogeneous supports to fabricate greener catalysts for sustainable chemistry.
Keywords
METAL-ORGANIC FRAMEWORKS, CO2 CAPTURE, TRANSFER HYDROGENATION, NANOPOROUS MATERIALS, BUILDING-BLOCKS, ARYL IODIDES, H-2 CAPTURE, DIOXIDE, OXIDATION, DESIGN

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Citation

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Chicago
Jena, Himanshu, Chidharth Krishnaraj, Guangbo Wang, Karen Leus, Johannes Schmidt, Nicolas Chaoui, and Pascal Van Der Voort. 2018. “Acetylacetone Covalent Triazine Framework : an Efficient Carbon Capture and Storage Material and a Highly Stable Heterogeneous Catalyst.” Chemistry of Materials 30 (12): 4102–4111.
APA
Jena, H., Krishnaraj, C., Wang, G., Leus, K., Schmidt, J., Chaoui, N., & Van Der Voort, P. (2018). Acetylacetone covalent triazine framework : an efficient carbon capture and storage material and a highly stable heterogeneous catalyst. CHEMISTRY OF MATERIALS, 30(12), 4102–4111.
Vancouver
1.
Jena H, Krishnaraj C, Wang G, Leus K, Schmidt J, Chaoui N, et al. Acetylacetone covalent triazine framework : an efficient carbon capture and storage material and a highly stable heterogeneous catalyst. CHEMISTRY OF MATERIALS. 2018;30(12):4102–11.
MLA
Jena, Himanshu, Chidharth Krishnaraj, Guangbo Wang, et al. “Acetylacetone Covalent Triazine Framework : an Efficient Carbon Capture and Storage Material and a Highly Stable Heterogeneous Catalyst.” CHEMISTRY OF MATERIALS 30.12 (2018): 4102–4111. Print.
@article{8585065,
  abstract     = {We present, for the first time, covalent triazine frameworks functionalized with acetylacetonate group (acacCTFs). They are obtained from the polymerization of 4,4'-malonyldibenzonitrile under ionothermal conditions and exhibit BET surface areas up to 1626 m(2)/g. The materials show excellent CO2 uptake (3.30 mmol/g at 273 K and 1 bar), H-2 storage capacity (1.53 wt \% at 77 K and 1 bar), and a good CO2/N-2 selectivity (up to 46 at 298 K). The enhanced CO2 uptake value and good selectivity are due to the presence of dual polar sites (N and O) throughout the material. In addition, acac-CTF was used to anchor VO(acac)(2) as a heterogeneous catalyst. The V@acacCTF showed outstanding reactivity and reusability for the modified Mannich-type reaction with a higher turnover number than the homogeneous catalyst. The higher reactivity and reusability of the catalyst come from the coordination of the vanadyl ions to the acetyl acetonate groups present in the material. The strong metalation is confirmed from Fourier transform infrared analysis, C-13 MAS NMR spectral analysis, and X-ray photoelectron spectroscopy measurement. Detailed characterization of the V@acac-CTF reveals that electron donation from O boolean AND O of the acetylacetonate group to VO(acac)(2), combined with the very high surface area of acac-CTF, is responsible for the stabilization of the catalyst. Overall, this contribution highlights the necessity of stable catalytic binding sites on heterogeneous supports to fabricate greener catalysts for sustainable chemistry.},
  author       = {Jena, Himanshu and Krishnaraj, Chidharth and Wang, Guangbo and Leus, Karen and Schmidt, Johannes and Chaoui, Nicolas and Van Der Voort, Pascal},
  issn         = {0897-4756},
  journal      = {CHEMISTRY OF MATERIALS},
  language     = {eng},
  number       = {12},
  pages        = {4102--4111},
  title        = {Acetylacetone covalent triazine framework : an efficient carbon capture and storage material and a highly stable heterogeneous catalyst},
  url          = {http://dx.doi.org/10.1021/acs.chemmater.8b01409},
  volume       = {30},
  year         = {2018},
}

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