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Khan AA, Alsalhi SA, Rahman AU. Exploring Si-centered phthalocyanine as a single atom catalyst for N 2O reduction: a DFT study. Phys Chem Chem Phys 2024; 26:17110-17117. [PMID: 38845527 DOI: 10.1039/d4cp00832d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/20/2024]
Abstract
To remove the greenhouse gas N2O from the environment, recently, researchers have taken great interest in single-atom catalysts (SACs). In this study, we investigated various reaction pathways and barrier energies for the N2O reduction process onto Si-coordinated phthalocyanine (Si@PthC) employing density functional theory. The outcomes validate that Si decoration in PthC is energetically stable while the corresponding electronic properties show that the Si atom acts as the reactive site for catalytic activity. The N2O molecule exhibits spontaneous dissociation over the catalyst surface from the O-end with -4.01 eV dissociation energy. Meanwhile, N2O dissociation via the N-end involves chemisorption onto the Si@PthC surface with an adsorption energy (Ead) of -1.16 eV, and the dissociation needs an energy barrier of 0.51 eV. The bond distances and negative adsorption energies (-1.11 and -2.40 eV) evince that CO and O2 species chemisorbed onto the Si@PthC surface. However, these energies are smaller than the N2O dissociation energy, which demonstrates that the presence of CO and O2 molecules cannot interrupt the N2O reduction process. Additionally, the CO + O* → CO2 reaction was executed for catalyst recovery, and the reaction proceeds very quickly on the Si@PthC catalyst, with a very small energy barrier (0.37 eV), indicating the excellent catalytic reactivity of the studied catalyst. These results propose that the designed catalyst can be valuable in the progress of novel noble metal-free catalysts for the elimination of harmful N2O from the environment.
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Affiliation(s)
- Adnan Ali Khan
- Department of Chemistry, University of Malakand, Khyber Pakhtunkhwa, Pakistan.
| | - Sarah Abdullah Alsalhi
- Department of Physics, College of Science, Princess Nourah bint Abdulrahman University, P. O. Box 84428, Riyadh 11671, Saudi Arabia.
| | - Ata Ur Rahman
- THz Technical Research Center of Shenzhen University, Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen, 518060, China
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Mousavian P, Esrafili MD, Sardroodi JJ. Oxidation of methane and ethylene over Al incorporated N-doped graphene: A comparative mechanistic DFT study. J Mol Graph Model 2022; 117:108284. [PMID: 35987185 DOI: 10.1016/j.jmgm.2022.108284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Revised: 07/17/2022] [Accepted: 07/26/2022] [Indexed: 10/15/2022]
Abstract
It is generally recognized that developing effective methods for selective oxidation of hydrocarbons to generate more useful chemicals is a major challenge for the chemical industry. In the present study, density functional theory calculations are conducted to examine the catalytic partial oxidation of methane (CH4) and ethylene (C2H4) by nitrous oxide (N2O) over Al-incorporated porphyrin-like N-doped graphene (AlN4-Gr). Adsorption energies for the most stable configurations of CH4, C2H4, and N2O molecules over the AlN4-Gr catalyst are determined to be -0.25, -0.64, and -0.40 eV, respectively. According to our findings, N2O can be efficiently split into N2 and Oads species with a negligible activation energy on the AlN4-Gr surface. Meanwhile, CH4 and C2H4 molecules compete for reaction with the activated oxygen atom (Oads) that stays on the surface. The energy barriers for partial methane oxidation through the CH4 + Oads → CH3° + HOads and CH3° + HOads → CH3OH reaction steps are 0.16 eV and 0.27 eV, respectively. Furthermore, the produced CH3OH may be overoxidized by Oads to give formaldehyde and water molecules by overcoming a relatively low activation barrier. The activation barriers for C2H4 epoxidation are small and comparable to those for CH4 oxidation, implying that AlN4-Gr is highly active for both reactions. The high energy barrier for the 1,2-hydrogen shift in the OCH2CH2 intermediate, on the other hand, makes the production of acetaldehyde impossible under normal conditions. According to the population analysis, the AlN4-Gr serves as a strong electron donor to aid in the charge transfer between the Al atom and the Oads moiety, which is necessary for the activation of CH4 and C2H4. The findings of the present study may pave the way for a better understanding of the catalytic oxidation the CH4 and C2H4, as well as for the development of highly efficient noble-metal free catalysts for these reactions.
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Affiliation(s)
| | - Mehdi D Esrafili
- Department of Chemistry, Faculty of Basic Sciences, University of Maragheh, P.O. Box 55136-553, Maragheh, Iran.
| | - Jaber J Sardroodi
- Department of Chemistry, Azarbaijan Shahid Madani University, Tabriz, Iran.
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Ali Khan A, Esrafili MD, Ali F, Ahmad R, Ahmad I. Silicon-doped boron nitride graphyne-like sheet for catalytic N2O reduction: A DFT study. J Mol Graph Model 2022; 114:108186. [DOI: 10.1016/j.jmgm.2022.108186] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 03/29/2022] [Accepted: 03/29/2022] [Indexed: 01/19/2023]
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Esrafili MD, Janebi H, Mousavian P. Epoxidation of ethylene over an Ag atom embedded B-vacancy defective boron-nitride nanosheet via a trimolecular Langmuir–Hinshelwood mechanism: A DFT investigation. MOLECULAR CATALYSIS 2021. [DOI: 10.1016/j.mcat.2021.111843] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Mousavian P, Esrafili MD, Sardroodi JJ. Activation of the methane C–H bond by Al- and Ga-doped graphenes: a DFT investigation. NEW J CHEM 2021. [DOI: 10.1039/d1nj03456a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The potential of Al- and Ge-embedded graphene to activate the C–H bond of CH4 in the presence of a N2O molecule was studied using DFT calculations.
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Affiliation(s)
| | - Mehdi D. Esrafili
- Department of Chemistry, Faculty of Basic Sciences, University of Maragheh, P.O. Box 55136-553, Maragheh, Iran
| | - Jaber J. Sardroodi
- Department of Chemistry, Azarbaijan Shahid Madani University, Tabriz, Iran
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Li W, Yan Z, Zhai X, Chen L, Liu W, Wang Y, Zhou G, Xiong K. A polarization propagation mechanism of Fe and Cu atoms co-doped in two-dimensional-Si 3N 4. NEW J CHEM 2020. [DOI: 10.1039/d0nj02868a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Fe and Cu atoms doped into two dimensional (2D) Si3N4 honeycomb structures exhibit magnetic anisotropy, and planar spin-polarization propagation.
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Affiliation(s)
- Weili Li
- College of Science
- Xi’an University of Science and Technology
- Xi’an 710054
- China
| | - Zhengxin Yan
- College of Science
- Xi’an University of Science and Technology
- Xi’an 710054
- China
- College of Safety
| | - Xiaowei Zhai
- College of Safety
- Xi’an University of Science and Technology
- Xi’an 710054
- China
| | - Li Chen
- College of Science
- Xi’an University of Science and Technology
- Xi’an 710054
- China
| | - Wei Liu
- College of Science
- Xi’an University of Science and Technology
- Xi’an 710054
- China
| | - Yixian Wang
- College of Science
- Xi’an University of Science and Technology
- Xi’an 710054
- China
| | - Gaoliang Zhou
- College of Science
- Xi’an University of Science and Technology
- Xi’an 710054
- China
| | - Kezhao Xiong
- College of Science
- Xi’an University of Science and Technology
- Xi’an 710054
- China
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Mandeep, Sharma L, Kakkar R. Adsorption of Bromonitromethane over Graphene‐Based Substrates: A Density Functional Theory Analysis. ChemistrySelect 2019. [DOI: 10.1002/slct.201900082] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Mandeep
- Computational Chemistry LaboratoryDepartment of ChemistryUniversity of Delhi Delhi- 110007 India
| | - Lekha Sharma
- Computational Chemistry LaboratoryDepartment of ChemistryUniversity of Delhi Delhi- 110007 India
| | - Rita Kakkar
- Computational Chemistry LaboratoryDepartment of ChemistryUniversity of Delhi Delhi- 110007 India
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Liu J, Ma Q, Huang Z, Liu G, Zhang H. Recent Progress in Graphene-Based Noble-Metal Nanocomposites for Electrocatalytic Applications. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2019; 31:e1800696. [PMID: 30256461 DOI: 10.1002/adma.201800696] [Citation(s) in RCA: 99] [Impact Index Per Article: 19.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Revised: 05/22/2018] [Indexed: 06/08/2023]
Abstract
The fast industrialization process has led to global challenges in the energy crisis and environmental pollution, which might be solved with clean and renewable energy. Highly efficient electrochemical systems for clean-energy collection require high-performance electrocatalysts, including Au, Pt, Pd, Ru, etc. Graphene, a single-layer 2D carbon nanosheet, possesses many intriguing properties, and has attracted tremendous research attention. Specifically, graphene and graphene derivatives have been utilized as templates for the synthesis of various noble-metal nanocomposites, showing excellent performance in electrocatalytic-energy-conversion applications, such as the hydrogen evolution reaction and CO2 reduction. Herein, the recent progress in graphene-based noble-metal nanocomposites is summarized, focusing on their synthetic methods and electrocatalytic applications. Furthermore, some personal insights on the challenges and possible future work in this research field are proposed.
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Affiliation(s)
- Jiawei Liu
- Center for Programmable Materials, School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Qinglang Ma
- Center for Programmable Materials, School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Zhiqi Huang
- Center for Programmable Materials, School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Guigao Liu
- Center for Programmable Materials, School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Hua Zhang
- Center for Programmable Materials, School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
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Periodic and non-periodic DFT modeling of CO reduction on the surface of Ni-doped graphene nanosheet. MOLECULAR CATALYSIS 2018. [DOI: 10.1016/j.mcat.2018.06.008] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Jayaprakash GK, Flores-Moreno R. Regioselectivity in hexagonal boron nitride co-doped graphene. NEW J CHEM 2018. [DOI: 10.1039/c8nj03679a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The active electron transfer (ET) sites on the graphene surface can be controlled by hexagonal boron nitride (h-BN) doping.
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Affiliation(s)
| | - Roberto Flores-Moreno
- Departamento de Química
- Centro Universitario de Ciencias Exactas e Ingenierías
- Universidad Guadalajara
- Mexico
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