Guanine condensates as covalent materials and the concept of cryptopores

Kossmann, Janina; Piankova, Diana V.; Tarakina, Nadezda V.; Heske, Julian; Kühne, Thomas D.; Schmidt, Johannes; Antonietti, Markus; López-Salas, Nieves

doi:10.1016/j.carbon.2020.10.047

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Guanine condensates as covalent materials and the concept of cryptopores

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Kossmann, Janina
Nieves Lopez Salas, Kolloidchemie, Max Planck Institute of Colloids and Interfaces, Max Planck Society;

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Piankova, Diana V.
Nadezda V. Tarakina, Kolloidchemie, Max Planck Institute of Colloids and Interfaces, Max Planck Society;

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Tarakina, Nadezda V.
Nadezda V. Tarakina, Kolloidchemie, Max Planck Institute of Colloids and Interfaces, Max Planck Society;

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Antonietti, Markus
Markus Antonietti, Kolloidchemie, Max Planck Institute of Colloids and Interfaces, Max Planck Society;

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López-Salas, Nieves
Markus Antonietti, Kolloidchemie, Max Planck Institute of Colloids and Interfaces, Max Planck Society;

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Citation

Kossmann, J., Piankova, D. V., Tarakina, N. V., Heske, J., Kühne, T. D., Schmidt, J., et al. (2021). Guanine condensates as covalent materials and the concept of cryptopores. Carbon, 172, 497-505. doi:10.1016/j.carbon.2020.10.047.

Cite as: https://hdl.handle.net/21.11116/0000-0007-45C8-A

Abstract

Simple thermal treatment of guanine at temperatures ranging from 600 to 700 °C leads to C₁N₁ condensates with unprecedented CO₂N₂ selectivity when compared to other carbonaceous solid sorbents. Increasing the surface area of the CN condensates in the presence of ZnCl₂ salt melts enhances the amount of CO₂ adsorbed while preserving the high selectivity values and C₁N₁ structure. Results indicate that these new materials show a sorption mechanism a step closer to that of natural CO₂ caption proteins and based on metal free structural cryptopores.