Synthesis-structure-property relationship of nitrogen-doped porous covalent triazine frameworks for pre-combustion CO2 capture

Ahmad Mukhtar; Sami Ullah; Abrar Inayat; Sidra Saqib; Nurhayati Binti Mellon; Mohammed Ali Assiri; Abdullah G. Al-Sehemi; Muhammad Bilal Khan Niazi; Zaib Jahan; Mohamad Azmi Bustam; Muhammad Ibrahim

doi:10.1016/j.energy.2020.119230

Synthesis-structure-property relationship of nitrogen-doped porous covalent triazine frameworks for pre-combustion CO₂ capture

Ahmad Mukhtar^*
, Sami Ullah
, Abrar Inayat
, Sidra Saqib
, Nurhayati Binti Mellon^*
, Mohammed Ali Assiri
, Abdullah G. Al-Sehemi
, Muhammad Bilal Khan Niazi
, Zaib Jahan
, Mohamad Azmi Bustam
, Muhammad Ibrahim

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

26 Scopus citations

Abstract

In this work, high pressure selective CO₂/CH₄ adsorption over functionalized covalent triazine based frameworks (CTF-NH) have been reported at high-pressure (1–20 bar) and different temperatures. The findings revealed that the successive incorporation of amine functionalities to the CTF leads to the enhancement of CO₂ and CH₄ adsorption capacities by 94.99% and 3.69%, respectively. The CO₂ and CH₄ adsorption capacities decreased with rising temperatures. The selectivity of CO₂/CH₄ was improved from 2.745 to 5.145. The different adsorption isotherms showed good fitting agreement with the experimentally acquired data with a lower value (AARE and R²) approaching to 1. The isotherm analysis exhibited that the adsorption is heterogeneous and satisfactory under these conditions. Dubinin-Radushkevich (D-R) isotherm analysis showed that the physisorption is dominant, with adsorption energy of less than 20 kJ/mol. Finally, thermodynamic properties revealed that at lower temperatures, the adsorption phenomenon is satisfactory, physical in nature, and exhibiting less disorder and randomness.

Original language	English
Article number	119230
Journal	Energy
Volume	216
DOIs	https://doi.org/10.1016/j.energy.2020.119230
State	Published - 1 Feb 2021
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2020 Elsevier Ltd

Keywords

Adsorption
And high-pressure adsorption
CO separation
Clean energy
Natural gas purification
Sustainable energy
Thermodynamics

ASJC Scopus subject areas

Civil and Structural Engineering
Building and Construction
Modeling and Simulation
Renewable Energy, Sustainability and the Environment
Fuel Technology
Energy Engineering and Power Technology
Pollution
Mechanical Engineering
General Energy
Industrial and Manufacturing Engineering
Management, Monitoring, Policy and Law
Electrical and Electronic Engineering

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1016/j.energy.2020.119230

Cite this

@article{bcec17ef2eaa4796b962e537b874242e,

title = "Synthesis-structure-property relationship of nitrogen-doped porous covalent triazine frameworks for pre-combustion CO2 capture",

abstract = "In this work, high pressure selective CO2/CH4 adsorption over functionalized covalent triazine based frameworks (CTF-NH) have been reported at high-pressure (1–20 bar) and different temperatures. The findings revealed that the successive incorporation of amine functionalities to the CTF leads to the enhancement of CO2 and CH4 adsorption capacities by 94.99\% and 3.69\%, respectively. The CO2 and CH4 adsorption capacities decreased with rising temperatures. The selectivity of CO2/CH4 was improved from 2.745 to 5.145. The different adsorption isotherms showed good fitting agreement with the experimentally acquired data with a lower value (AARE and R2) approaching to 1. The isotherm analysis exhibited that the adsorption is heterogeneous and satisfactory under these conditions. Dubinin-Radushkevich (D-R) isotherm analysis showed that the physisorption is dominant, with adsorption energy of less than 20 kJ/mol. Finally, thermodynamic properties revealed that at lower temperatures, the adsorption phenomenon is satisfactory, physical in nature, and exhibiting less disorder and randomness.",

keywords = "Adsorption, And high-pressure adsorption, CO separation, Clean energy, Natural gas purification, Sustainable energy, Thermodynamics",

author = "Ahmad Mukhtar and Sami Ullah and Abrar Inayat and Sidra Saqib and Mellon, \{Nurhayati Binti\} and Assiri, \{Mohammed Ali\} and Al-Sehemi, \{Abdullah G.\} and \{Khan Niazi\}, \{Muhammad Bilal\} and Zaib Jahan and Bustam, \{Mohamad Azmi\} and Muhammad Ibrahim",

note = "Publisher Copyright: {\textcopyright} 2020 Elsevier Ltd",

year = "2021",

month = feb,

day = "1",

doi = "10.1016/j.energy.2020.119230",

language = "English",

volume = "216",

journal = "Energy",

issn = "0360-5442",

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TY - JOUR

T1 - Synthesis-structure-property relationship of nitrogen-doped porous covalent triazine frameworks for pre-combustion CO2 capture

AU - Mukhtar, Ahmad

AU - Ullah, Sami

AU - Inayat, Abrar

AU - Saqib, Sidra

AU - Mellon, Nurhayati Binti

AU - Assiri, Mohammed Ali

AU - Al-Sehemi, Abdullah G.

AU - Khan Niazi, Muhammad Bilal

AU - Jahan, Zaib

AU - Bustam, Mohamad Azmi

AU - Ibrahim, Muhammad

PY - 2021/2/1

Y1 - 2021/2/1

N2 - In this work, high pressure selective CO2/CH4 adsorption over functionalized covalent triazine based frameworks (CTF-NH) have been reported at high-pressure (1–20 bar) and different temperatures. The findings revealed that the successive incorporation of amine functionalities to the CTF leads to the enhancement of CO2 and CH4 adsorption capacities by 94.99% and 3.69%, respectively. The CO2 and CH4 adsorption capacities decreased with rising temperatures. The selectivity of CO2/CH4 was improved from 2.745 to 5.145. The different adsorption isotherms showed good fitting agreement with the experimentally acquired data with a lower value (AARE and R2) approaching to 1. The isotherm analysis exhibited that the adsorption is heterogeneous and satisfactory under these conditions. Dubinin-Radushkevich (D-R) isotherm analysis showed that the physisorption is dominant, with adsorption energy of less than 20 kJ/mol. Finally, thermodynamic properties revealed that at lower temperatures, the adsorption phenomenon is satisfactory, physical in nature, and exhibiting less disorder and randomness.

AB - In this work, high pressure selective CO2/CH4 adsorption over functionalized covalent triazine based frameworks (CTF-NH) have been reported at high-pressure (1–20 bar) and different temperatures. The findings revealed that the successive incorporation of amine functionalities to the CTF leads to the enhancement of CO2 and CH4 adsorption capacities by 94.99% and 3.69%, respectively. The CO2 and CH4 adsorption capacities decreased with rising temperatures. The selectivity of CO2/CH4 was improved from 2.745 to 5.145. The different adsorption isotherms showed good fitting agreement with the experimentally acquired data with a lower value (AARE and R2) approaching to 1. The isotherm analysis exhibited that the adsorption is heterogeneous and satisfactory under these conditions. Dubinin-Radushkevich (D-R) isotherm analysis showed that the physisorption is dominant, with adsorption energy of less than 20 kJ/mol. Finally, thermodynamic properties revealed that at lower temperatures, the adsorption phenomenon is satisfactory, physical in nature, and exhibiting less disorder and randomness.

KW - Adsorption

KW - And high-pressure adsorption

KW - CO separation

KW - Clean energy

KW - Natural gas purification

KW - Sustainable energy

KW - Thermodynamics

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DO - 10.1016/j.energy.2020.119230

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