Influence of SO2 on CO2 capture by adsorption on activated carbon: Individual pore performance via multiscale simulation

Moreira, Davi D.S.; Gonçalves, Daniel V.; Amorim, Juliana C.; de Azevedo, Diana C.S.; Rios, Rafael B.; de Lucena, Sebastião M.P.; Bastos-Neto, Moises

doi:10.1016/j.seppur.2023.126219

Separation and Purification Technology

2024

DOI: 10.1016/j.seppur.2023.126219

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Influence of SO2 on CO2 capture by adsorption on activated carbon: Individual pore performance via multiscale simulation

Davi D.S. Moreira,

Daniel V. Gonçalves,

Juliana C. Amorim

et al.

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Cited by 2 publications

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Triple Templates Directed Synthesis of Nitrogen‐Doped Hierarchically Porous Carbons from Pyridine Rich Monomer as Efficient and Reversible SO₂ Adsorbents

Zhang,

Liu,

Zhu

et al. 2024

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Herein, a variety of 2,6‐diaminopyridine (DAP) derived nitrogen‐doped hierarchically porous carbon (DAP‐NHPC‐T) prepared from carbonization‐induced structure transformation of DAP‐Zn‐SiO2‐P123 nanocomposites are reported, which are facilely prepared from solvent‐free co‐assembly of block copolymer templates P123 with pyridine‐rich monomer of DAP, Zn(NO3)2 and tetramethoxysilane. In the pyrolysis process, P123 and SiO2 templates promote the formation of mesoporous and supermicroporous structures in the DAP‐NHPC‐T, while high‐temperature volatilization of Zn contributed to generation of micropores. The DAP‐NHPC‐T possess large BET surface areas (≈956–1126 m2 g−1), hierarchical porosity with micro‐supermicro‐mesoporous feature and high nitrogen contents (≈10.44–5.99 at%) with tunable density of pyridine‐based nitrogen sites (≈5.99–3.32 at%), exhibiting good accessibility and reinforced interaction with SO2. Consequently, the DAP‐NHPC‐T show high SO2 capacity (14.7 mmol g−1, 25 °C and 1.0 bar) and SO2/CO2/N2 IAST selectivities, extraordinary dynamic breakthrough separation efficiency and cycling stability, far beyond any other reported nitrogen‐doped metal‐free carbon. As verified by in situ spectroscopy and theoretical calculations, the pyridine‐based nitrogen sites of the DAP‐NHPC‐T boost SO2 adsorption via the unique charge transfer, the adsorption mechanism and reaction model have been finally clarified.

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Triple Templates Directed Synthesis of Nitrogen‐Doped Hierarchically Porous Carbons from Pyridine Rich Monomer as Efficient and Reversible SO₂ Adsorbents

Zhang,

Liu,

Zhu

et al. 2024

Small

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Multicomponent adsorption mechanism of CO2, SO2, NO, and C7H8 from flue gases on nitrogen-doped biochar: Experimental and computational insights

Zhang,

Shao,

Zhang

et al. 2024

Chemical Engineering Journal

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Influence of SO2 on CO2 capture by adsorption on activated carbon: Individual pore performance via multiscale simulation

Cited by 2 publications

References 89 publications

Triple Templates Directed Synthesis of Nitrogen‐Doped Hierarchically Porous Carbons from Pyridine Rich Monomer as Efficient and Reversible SO₂ Adsorbents

Triple Templates Directed Synthesis of Nitrogen‐Doped Hierarchically Porous Carbons from Pyridine Rich Monomer as Efficient and Reversible SO₂ Adsorbents

Multicomponent adsorption mechanism of CO2, SO2, NO, and C7H8 from flue gases on nitrogen-doped biochar: Experimental and computational insights

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Influence of SO2 on CO2 capture by adsorption on activated carbon: Individual pore performance via multiscale simulation

Cited by 2 publications

References 89 publications

Triple Templates Directed Synthesis of Nitrogen‐Doped Hierarchically Porous Carbons from Pyridine Rich Monomer as Efficient and Reversible SO2 Adsorbents

Triple Templates Directed Synthesis of Nitrogen‐Doped Hierarchically Porous Carbons from Pyridine Rich Monomer as Efficient and Reversible SO2 Adsorbents

Multicomponent adsorption mechanism of CO2, SO2, NO, and C7H8 from flue gases on nitrogen-doped biochar: Experimental and computational insights

Contact Info

Product

Resources

About

Triple Templates Directed Synthesis of Nitrogen‐Doped Hierarchically Porous Carbons from Pyridine Rich Monomer as Efficient and Reversible SO₂ Adsorbents

Triple Templates Directed Synthesis of Nitrogen‐Doped Hierarchically Porous Carbons from Pyridine Rich Monomer as Efficient and Reversible SO₂ Adsorbents