Convenient design of porous and heteroatom self-doped carbons for CO2 capture

Porous and heteroatoms self-doped carbon (PHCs) materials are synthesized for the first time by employing carbonization of casein with ZnCl2 at a temperature of 800 °C. The synthesis involves a one-step solid state carbonization cum activation to synthesize PHCs with high specific surface areas and...

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Main Authors: Singh, G., Ramadass, K., Lee, J.M., Ismail, I.S., Singh, M., Bansal, V., Yang, J.-H., Vinu, A.
Format: Article
Institution: Universiti Teknologi Petronas
Record Id / ISBN-0: utp-eprints.24948 /
Published: Elsevier B.V. 2019
Online Access: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85066242387&doi=10.1016%2fj.micromeso.2019.05.042&partnerID=40&md5=b0f48cf3f6e22442c62e9ac59bf74c49
http://eprints.utp.edu.my/24948/
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spelling utp-eprints.249482021-08-27T08:35:10Z Convenient design of porous and heteroatom self-doped carbons for CO2 capture Singh, G. Ramadass, K. Lee, J.M. Ismail, I.S. Singh, M. Bansal, V. Yang, J.-H. Vinu, A. Porous and heteroatoms self-doped carbon (PHCs) materials are synthesized for the first time by employing carbonization of casein with ZnCl2 at a temperature of 800 °C. The synthesis involves a one-step solid state carbonization cum activation to synthesize PHCs with high specific surface areas and surface functionalization with nitrogen and oxygen. The textural properties of PHCs including specific surface area, pore volume and pore size can easily be controlled by adjusting the activation amounts of ZnCl2. The optimized material (PHC4) is synthesized with ZnCl2/casein impregnation ratio of 4 and it shows a high specific surface area (1080 m2 g�1) and an appreciable amount of heteroatoms, nitrogen (4.4) and oxygen (4.7). PHC4 exhibits a high CO2 adsorption capacity at 0 °C/1 bar (3.5 mmol g�1) and 0 °C/30 bar (15.8 mmol g�1). Additionally, the presence of heteroatoms on the surface results in enhancement of interactions between CO2 and the adsorbents which are evident from a high value of isosteric heat of adsorption (�35 kJ mol�1) calculated using Clausius Clapeyron's equation. The reported activation synthesis strategy could be explored further to devise advanced functional nanomaterials for specific adsorption applications. © 2019 Elsevier B.V. 2019 Article NonPeerReviewed https://www.scopus.com/inward/record.uri?eid=2-s2.0-85066242387&doi=10.1016%2fj.micromeso.2019.05.042&partnerID=40&md5=b0f48cf3f6e22442c62e9ac59bf74c49 Singh, G. and Ramadass, K. and Lee, J.M. and Ismail, I.S. and Singh, M. and Bansal, V. and Yang, J.-H. and Vinu, A. (2019) Convenient design of porous and heteroatom self-doped carbons for CO2 capture. Microporous and Mesoporous Materials, 287 . pp. 1-8. http://eprints.utp.edu.my/24948/
institution Universiti Teknologi Petronas
collection UTP Institutional Repository
description Porous and heteroatoms self-doped carbon (PHCs) materials are synthesized for the first time by employing carbonization of casein with ZnCl2 at a temperature of 800 °C. The synthesis involves a one-step solid state carbonization cum activation to synthesize PHCs with high specific surface areas and surface functionalization with nitrogen and oxygen. The textural properties of PHCs including specific surface area, pore volume and pore size can easily be controlled by adjusting the activation amounts of ZnCl2. The optimized material (PHC4) is synthesized with ZnCl2/casein impregnation ratio of 4 and it shows a high specific surface area (1080 m2 g�1) and an appreciable amount of heteroatoms, nitrogen (4.4) and oxygen (4.7). PHC4 exhibits a high CO2 adsorption capacity at 0 °C/1 bar (3.5 mmol g�1) and 0 °C/30 bar (15.8 mmol g�1). Additionally, the presence of heteroatoms on the surface results in enhancement of interactions between CO2 and the adsorbents which are evident from a high value of isosteric heat of adsorption (�35 kJ mol�1) calculated using Clausius Clapeyron's equation. The reported activation synthesis strategy could be explored further to devise advanced functional nanomaterials for specific adsorption applications. © 2019
format Article
author Singh, G.
Ramadass, K.
Lee, J.M.
Ismail, I.S.
Singh, M.
Bansal, V.
Yang, J.-H.
Vinu, A.
spellingShingle Singh, G.
Ramadass, K.
Lee, J.M.
Ismail, I.S.
Singh, M.
Bansal, V.
Yang, J.-H.
Vinu, A.
Convenient design of porous and heteroatom self-doped carbons for CO2 capture
author_sort Singh, G.
title Convenient design of porous and heteroatom self-doped carbons for CO2 capture
title_short Convenient design of porous and heteroatom self-doped carbons for CO2 capture
title_full Convenient design of porous and heteroatom self-doped carbons for CO2 capture
title_fullStr Convenient design of porous and heteroatom self-doped carbons for CO2 capture
title_full_unstemmed Convenient design of porous and heteroatom self-doped carbons for CO2 capture
title_sort convenient design of porous and heteroatom self-doped carbons for co2 capture
publisher Elsevier B.V.
publishDate 2019
url https://www.scopus.com/inward/record.uri?eid=2-s2.0-85066242387&doi=10.1016%2fj.micromeso.2019.05.042&partnerID=40&md5=b0f48cf3f6e22442c62e9ac59bf74c49
http://eprints.utp.edu.my/24948/
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score 11.62408

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