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Zhu X, Xu Y, Ran L, Chen S, Qiu X. Three-Dimensional Porous Indium Single-Atom Catalysts with Improved Accessibility for CO 2 Reduction to Formate. Inorg Chem 2024; 63:3893-3900. [PMID: 38349182 DOI: 10.1021/acs.inorgchem.3c04273] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/27/2024]
Abstract
Single-atom catalysts (SACs) present substantial potential in electrocatalytic CO2 reduction reactions; however, inferior accessibility of single-atom sites to CO2 limits the overall CO2RR performances. Herein, we propose to improve the accessibility between In sites and CO2 through the construction of a three-dimensional (3D) porous indium single-atom catalyst (In1/NC-3D). The NaCl template-mediated synthesis strategy generates the unique 3D porous nanostructure of In1/NC-3D. Multiple characterizations validate that In1/NC-3D exhibits increased exposure of active sites and enhanced CO2 transport/adsorption capacity compared to the bulk In1/NC, thus improving accessibility of active sites to CO2. As a result, the In1/NC-3D presents superior CO2RR performance to the bulk In1/NC, with a partial current density of formate of 67.24 mA cm-2 at -1.41 V, relative to a reversible hydrogen electrode (vs RHE). The CO2RR performances with high formate selectivity at a large current density also outperform most reported In-based SACs. Importantly, the In1/NC-3D is demonstrated to maintain an FEformate of >82% at -66.83 mA·cm-2 over 21 h. This work highlights the design of a 3D porous single-atom catalyst for efficient CO2RR, promoting the development of advanced catalysts toward advanced energy conversion.
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Affiliation(s)
- Xinwang Zhu
- College of Chemistry and Chemical Engineering, Central South University, Changsha, Hunan 410083, P. R. China
| | - Yan Xu
- College of Chemistry and Chemical Engineering, Central South University, Changsha, Hunan 410083, P. R. China
| | - Lan Ran
- College of Chemistry and Chemical Engineering, Central South University, Changsha, Hunan 410083, P. R. China
| | - Shanyong Chen
- College of Chemistry and Chemical Engineering, Central South University, Changsha, Hunan 410083, P. R. China
- Guangdong Key Laboratory of Environmental Pollution and Health, School of Environment, Jinan University, Guangzhou, Guangdong 511443, P. R. China
| | - Xiaoqing Qiu
- College of Chemistry and Chemical Engineering, Central South University, Changsha, Hunan 410083, P. R. China
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Priya M, Venkatesan R, Deepa S, Sana SS, Arumugam S, Karami AM, Vetcher AA, Kim SC. Green synthesis, characterization, antibacterial, and antifungal activity of copper oxide nanoparticles derived from Morinda citrifolia leaf extract. Sci Rep 2023; 13:18838. [PMID: 37914791 PMCID: PMC10620180 DOI: 10.1038/s41598-023-46002-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Accepted: 10/26/2023] [Indexed: 11/03/2023] Open
Abstract
The green methodologies of nanoparticles with plant extracts have received an increase of interest. Copper oxide nanoparticles (CuO NPs) have been utilized in a many of applications in the last few decades. The current study presents the synthesis of CuO NPs with aqueous extract of Morinda citrifolia as a stabilizing agent. The leaf extract of Morinda citrifolia was mixed with a solution of copper sulphate (CuSO4·5H2O) and sodium hydroxide as a catalyst. UV-visible spectroscopy, FTIR, XRD, SEM, TEM, and EDAX analysis were performed to study the synthesized CuO NPs. Particle size distribution of the synthesized CuO NPs have been measured with dynamic light scattering. The CuO NPs synthesized were highly stable, sphere-like, and have size of particles from 20 to 50 nm. Furthermore, as-formed CuO NPs shown strong antibacterial activity against the Gram-positive bacteria (Bacillus subtilis, and Staphylococcus aureus), and Gram-negative bacteria (Escherichia coli). CuO NPs revealed a similar trend was analysed for antifungal activity. The zone of inhibition for the fungi evaluated for Aspergillus flavus (13.0 ± 1.1), Aspergillus niger (14.3 ± 0.7), and Penicillium frequentans (16.8 ± 1.4). According to the results of this investigation, green synthesized CuO NPs with Morinda citrifolia leaf extract may be used in biomedicine as a replacement agent for biological applications.
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Affiliation(s)
- Manogar Priya
- Department of Chemistry, School of Basic Sciences, Vels Institute of Science, Technology and Advanced Studies, Chennai, Tamil Nadu, 600117, India.
| | - Raja Venkatesan
- School of Chemical Engineering, Yeungnam University, Gyeongsan, 38541, Republic of Korea.
| | - Simon Deepa
- Department of Chemistry, School of Basic Sciences, Vels Institute of Science, Technology and Advanced Studies, Chennai, Tamil Nadu, 600117, India
| | - Siva Sankar Sana
- School of Chemical Engineering, Yeungnam University, Gyeongsan, 38541, Republic of Korea
| | - Soundhar Arumugam
- Department of Mechanical Engineering, Indian Institute of Technology Guwahati, Guwahati, Assam, 781039, India
| | - Abdulnasser M Karami
- Department of Chemistry, College of Science, King Saud University, 11451, Riyadh, Saudi Arabia
| | - Alexandre A Vetcher
- Institute of Biochemical Technology and Nanotechnology, Peoples' Friendship, University of Russia (RUDN), 6 Miklukho-Maklaya St., Moscow, Russia, 117198
| | - Seong-Cheol Kim
- School of Chemical Engineering, Yeungnam University, Gyeongsan, 38541, Republic of Korea.
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Fu J, Mooraj S, Ng AK, Zhu C, Chen W, Detsi E. Sub-100 mA/cm 2 CO 2-to-CO Reduction Current Densities in Hierarchical Porous Gold Electrocatalysts Made by Direct Ink Writing and Dealloying. ACS APPLIED MATERIALS & INTERFACES 2023. [PMID: 37276347 DOI: 10.1021/acsami.3c02050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
While most research efforts on CO2-to-CO reduction electrocatalysts focus on boosting their selectivity, the reduction rate, directly proportional to the reduction current density, is another critical parameter to be considered in practical applications. This is because mass transport associated with the diffusion of reactant/product species becomes a major concern at a high reduction rate. Nanostructured Au is a promising CO2-to-CO reduction electrocatalyst for its very high selectivity. However, the CO2-to-CO reduction current density commonly achieved in conventional nanostructured Au electrocatalysts is relatively low (in the range of 1-10 mA/cm2) for practical applications. In this work, we combine direct ink writing-based additive manufacturing and dealloying to design a robust hierarchical porous Au electrocatalyst to improve the mass transport and achieve high CO2-to-CO reduction current densities on the order of 64.9 mA/cm2 with CO partial current density of 33.8 mA/cm2 at 0.55 V overpotential using an H-cell configuration. Although the current density achieved in our robust hierarchical porous Au electrocatalyst is one order of magnitude higher than the one achieved in conventional nanostructured electrocatalysts, we found that the selectivity of our system is relatively low, namely 52%, which suggests that mass transport remains a critical issue despite the hierarchical porous architecture. We further show that the bulk dimension of our electrocatalyst is a critical parameter governing the interplay between selectivity and reduction rate. The insights gained in this work shed new light on the design of electrocatalysts toward scale-up CO2 reduction and beyond.
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Affiliation(s)
- Jintao Fu
- Department of Materials Science & Engineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6272, United States
| | - Shahryar Mooraj
- Department of Mechanical and Industrial Engineering, University of Massachusetts, Amherst, Massachusetts 01003-2210, United States
| | - Alexander K Ng
- Department of Materials Science & Engineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6272, United States
| | - Cheng Zhu
- Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94550, United States
| | - Wen Chen
- Department of Mechanical and Industrial Engineering, University of Massachusetts, Amherst, Massachusetts 01003-2210, United States
| | - Eric Detsi
- Department of Materials Science & Engineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6272, United States
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Rahmati F, Sabouhanian N, Lipkowski J, Chen A. Synthesis of 3D Porous Cu Nanostructures on Ag Thin Film Using Dynamic Hydrogen Bubble Template for Electrochemical Conversion of CO 2 to Ethanol. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:778. [PMID: 36839146 PMCID: PMC9959227 DOI: 10.3390/nano13040778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Revised: 02/14/2023] [Accepted: 02/15/2023] [Indexed: 06/18/2023]
Abstract
Cu-based nanomaterials have been widely considered to be promising electrocatalysts for the direct conversion of CO2 to high-value hydrocarbons. However, poor selectivity and slow kinetics have hindered the use of Cu-based catalysts for large-scale industrial applications. In this work, we report on a tunable Cu-based synthesis strategy using a dynamic hydrogen bubble template (DHBT) coupled with a sputtered Ag thin film for the electrochemical reduction of CO2 to ethanol. Remarkably, the introduction of Ag into the base of the three-dimensional (3D) Cu nanostructure induced changes in the CO2 reduction reaction (CO2RR) pathway, which resulted in the generation of ethanol with high Faradaic Efficiency (FE). This observation was further investigated through Tafel and electrochemical impedance spectroscopic analyses. The rational design of the electrocatalyst was shown to promote the spillover of formed CO intermediates from the Ag sites to the 3D porous Cu nanostructure for further reduction to C2 products. Finally, challenges toward the development of multi-metallic electrocatalysts for the direct catalysis of CO2 to hydrocarbons were elucidated, and future perspectives were highlighted.
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Matthes R, Jablonowski L, Pitchika V, Holtfreter B, Eberhard C, Seifert L, Gerling T, Vilardell Scholten L, Schlüter R, Kocher T. Efficiency of biofilm removal by combination of water jet and cold plasma: an in-vitro study. BMC Oral Health 2022; 22:157. [PMID: 35524324 PMCID: PMC9074283 DOI: 10.1186/s12903-022-02195-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Accepted: 04/25/2022] [Indexed: 11/10/2022] Open
Abstract
Background Peri-implantitis therapy is a major problem in implantology. Because of challenging rough implant surface and implant geometry, microorganisms can hide and survive in implant microstructures and impede debridement. We developed a new water jet (WJ) device and a new cold atmospheric pressure plasma (CAP) device to overcome these problems and investigated aspects of efficacy in vitro and safety with the aim to create the prerequisites for a clinical pilot study with these medical devices. Methods We compared the efficiency of a single treatment with a WJ or curette and cotton swab (CC) without or with adjunctive use of CAP (WJ + CAP, CC + CAP) to remove biofilm in vitro from rough titanium discs. Treatment efficacy was evaluated by measuring turbidity up to 72 h for bacterial re-growth or spreading of osteoblast-like cells (MG-63) after 5 days with scanning electron microscopy. With respect to application safety, the WJ and CAP instruments were examined according to basic regulations for medical devices. Results After 96 h of incubation all WJ and CC treated disks were turbid but 67% of WJ + CAP and 46% CC + CAP treated specimens were still clear. The increase in turbidity after WJ treatment was delayed by about 20 h compared to CC treatment. In combination with CAP the cell coverage significantly increased to 82% (WJ + CAP) or 72% (CC + CAP), compared to single treatment 11% (WJ) or 10% (CC). Conclusion The newly developed water jet device effectively removes biofilm from rough titanium surfaces in vitro and, in combination with the new CAP device, biologically acceptable surfaces allow osteoblasts to grow. WJ in combination with CAP leads to cleaner surfaces than the usage of curette and cotton swabs with or without subsequent plasma treatment. Our next step will be a clinical pilot study with these new devices to assess the clinical healing process. Supplementary Information The online version contains supplementary material available at 10.1186/s12903-022-02195-1.
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Affiliation(s)
- Rutger Matthes
- Department of Restorative Dentistry, Periodontology, Endodontology, Preventive Dentistry and Pedodontics, Dental School, University Medicine Greifswald, Fleischmannstr. 42, 17475, Greifswald, Germany
| | - Lukasz Jablonowski
- Department of Restorative Dentistry, Periodontology, Endodontology, Preventive Dentistry and Pedodontics, Dental School, University Medicine Greifswald, Fleischmannstr. 42, 17475, Greifswald, Germany
| | - Vinay Pitchika
- Department of Restorative Dentistry, Periodontology, Endodontology, Preventive Dentistry and Pedodontics, Dental School, University Medicine Greifswald, Fleischmannstr. 42, 17475, Greifswald, Germany
| | - Birte Holtfreter
- Department of Restorative Dentistry, Periodontology, Endodontology, Preventive Dentistry and Pedodontics, Dental School, University Medicine Greifswald, Fleischmannstr. 42, 17475, Greifswald, Germany
| | | | - Leo Seifert
- Sirona Dental Systems GmbH, Bensheim, Germany
| | - Torsten Gerling
- ZIK Plasmatis, Leibniz-Institute for Plasma Science and Technology e.V. (INP), Greifswald, Germany
| | - Laura Vilardell Scholten
- ZIK Plasmatis, Leibniz-Institute for Plasma Science and Technology e.V. (INP), Greifswald, Germany
| | - Rabea Schlüter
- Imaging Center of the Department of Biology, University of Greifswald, Greifswald, Germany
| | - Thomas Kocher
- Department of Restorative Dentistry, Periodontology, Endodontology, Preventive Dentistry and Pedodontics, Dental School, University Medicine Greifswald, Fleischmannstr. 42, 17475, Greifswald, Germany.
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Recent Advances in Layered-Double-Hydroxides Based Noble Metal Nanoparticles Efficient Electrocatalysts. NANOMATERIALS 2021; 11:nano11102644. [PMID: 34685086 PMCID: PMC8539300 DOI: 10.3390/nano11102644] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Revised: 09/30/2021] [Accepted: 10/03/2021] [Indexed: 11/16/2022]
Abstract
With the energy crisis and environmental pollution becoming more and more serious, it is urgent to develop renewable and clean energy. Hydrogen production from electrolyzed water is of great significance to solve the energy crisis and environmental problems in the future. Recently, layered double hydroxides (LDHs) materials have been widely studied in the electrocatalysis field, due to their unique layered structure, tunable metal species and highly dispersed active sites. Moreover, the LDHs supporting noble metal catalysts obtained through the topotactic transformation of LDHs precursors significantly reduce the energy barrier of electrolyzing water, showing remarkable catalytic activity, good conductivity and excellent durability. In this review, we give an overview of recent advances on LDHs supporting noble metal catalysts, from a brief introduction, to their preparation and modification methods, to an overview of their application in the electrocatalysis field, as well as the challenges and outlooks in this promising field on the basis of current development.
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Proietto F, Patel U, Galia A, Scialdone O. Electrochemical conversion of CO2 to formic acid using a Sn based electrode: A critical review on the state-of-the-art technologies and their potential. Electrochim Acta 2021. [DOI: 10.1016/j.electacta.2021.138753] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Stojkovikj S, El-Nagar GA, Firschke F, Pardo Pérez LC, Choubrac L, Najdoski M, Mayer MT. Electrocatalyst Derived from Waste Cu-Sn Bronze for CO 2 Conversion into CO. ACS APPLIED MATERIALS & INTERFACES 2021; 13:38161-38169. [PMID: 34370955 DOI: 10.1021/acsami.1c05015] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
To sustainably exist within planetary boundaries, we must greatly curtail our extraction of fuels and materials from the Earth. This requires new technologies based on reuse and repurposing of material already available. Electrochemical conversion of CO2 into valuable chemicals and fuels is a promising alternative to deriving them from fossil fuels. But most metals used for electrocatalysis are either endangered or at serious risk of limitation to their future supply. Here, we demonstrate a combined strategy for repurposing of a waste industrial Cu-Sn bronze as a catalyst material precursor and its application toward CO2 reuse. By a simple electrochemical transfer method, waste bronzes with composition Cu14Sn were anodically dissolved and cathodically redeposited under dynamic hydrogen bubble template conditions to yield mesoporous foams with Cu10Sn surface composition. The bimetal foam electrodes exhibited high CO2 electroreduction selectivity toward CO, achieving greater than 85% faradaic efficiency accompanied by a considerable suppression of the competing H2 evolution reaction. The Cu-Sn foam electrodes showed good durability over several hours of continuous electrolysis without any significant change in the composition, morphology, and selectivity for CO as a target product.
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Affiliation(s)
- Sasho Stojkovikj
- Helmholtz Young Investigator Group: Electrochemical Conversion of CO2, Helmholtz-Zentrum Berlin für Materialen und Energie GmbH, Hahn-Meitner-Platz 1, Berlin D-14109, Germany
- Institut für Chemie und Biochemie, Freie Universität Berlin, Arnimallee 22, Berlin D-14195, Germany
| | - Gumaa A El-Nagar
- Helmholtz Young Investigator Group: Electrochemical Conversion of CO2, Helmholtz-Zentrum Berlin für Materialen und Energie GmbH, Hahn-Meitner-Platz 1, Berlin D-14109, Germany
| | - Frederik Firschke
- Helmholtz Young Investigator Group: Electrochemical Conversion of CO2, Helmholtz-Zentrum Berlin für Materialen und Energie GmbH, Hahn-Meitner-Platz 1, Berlin D-14109, Germany
- Institut für Chemie und Biochemie, Freie Universität Berlin, Arnimallee 22, Berlin D-14195, Germany
| | - Laura C Pardo Pérez
- Helmholtz Young Investigator Group: Electrochemical Conversion of CO2, Helmholtz-Zentrum Berlin für Materialen und Energie GmbH, Hahn-Meitner-Platz 1, Berlin D-14109, Germany
| | - Léo Choubrac
- Department Structure and Dynamics of Energy Materials, Helmholtz-Zentrum Berlin für Materialen und Energie GmbH, Hahn-Meitner-Platz 1, Berlin D-14109, Germany
| | - Metodija Najdoski
- Institute of Chemistry, Faculty of Natural Sciences and Mathematics, Ss. Cyril and Methodius University Skopje, Arhimedova 5, Skopje 1000, Republic of North Macedonia
| | - Matthew T Mayer
- Helmholtz Young Investigator Group: Electrochemical Conversion of CO2, Helmholtz-Zentrum Berlin für Materialen und Energie GmbH, Hahn-Meitner-Platz 1, Berlin D-14109, Germany
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Usman M, Humayun M, Garba MD, Ullah L, Zeb Z, Helal A, Suliman MH, Alfaifi BY, Iqbal N, Abdinejad M, Tahir AA, Ullah H. Electrochemical Reduction of CO 2: A Review of Cobalt Based Catalysts for Carbon Dioxide Conversion to Fuels. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:2029. [PMID: 34443860 PMCID: PMC8400998 DOI: 10.3390/nano11082029] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Revised: 07/29/2021] [Accepted: 08/05/2021] [Indexed: 12/15/2022]
Abstract
Electrochemical CO2 reduction reaction (CO2RR) provides a promising approach to curbing harmful emissions contributing to global warming. However, several challenges hinder the commercialization of this technology, including high overpotentials, electrode instability, and low Faradic efficiencies of desirable products. Several materials have been developed to overcome these challenges. This mini-review discusses the recent performance of various cobalt (Co) electrocatalysts, including Co-single atom, Co-multi metals, Co-complexes, Co-based metal-organic frameworks (MOFs), Co-based covalent organic frameworks (COFs), Co-nitrides, and Co-oxides. These materials are reviewed with respect to their stability of facilitating CO2 conversion to valuable products, and a summary of the current literature is highlighted, along with future perspectives for the development of efficient CO2RR.
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Affiliation(s)
- Muhammad Usman
- Center of Research Excellence in Nanotechnology, King Fahd University of Petroleum and Minerals (KFUPM), Dhahran 31261, Saudi Arabia; (A.H.); (M.H.S.); (B.Y.A.)
| | - Muhammad Humayun
- Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074, China;
| | - Mustapha D. Garba
- Department of Chemistry, University of Glasgow, Glasgow G12 8QQ, UK;
| | - Latif Ullah
- College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China;
| | - Zonish Zeb
- Key Laboratory of Organic Optoelectronics & Molecular Engineering of Ministry of Education, Department of Chemistry, Tsinghua University, Beijing 100084, China;
| | - Aasif Helal
- Center of Research Excellence in Nanotechnology, King Fahd University of Petroleum and Minerals (KFUPM), Dhahran 31261, Saudi Arabia; (A.H.); (M.H.S.); (B.Y.A.)
| | - Munzir H. Suliman
- Center of Research Excellence in Nanotechnology, King Fahd University of Petroleum and Minerals (KFUPM), Dhahran 31261, Saudi Arabia; (A.H.); (M.H.S.); (B.Y.A.)
| | - Bandar Y. Alfaifi
- Center of Research Excellence in Nanotechnology, King Fahd University of Petroleum and Minerals (KFUPM), Dhahran 31261, Saudi Arabia; (A.H.); (M.H.S.); (B.Y.A.)
| | - Naseem Iqbal
- US-Pakistan Centre for Advanced Studies in Energy (USPCAS-E), National University of Sciences and Technology (NUST), Islamabad 44000, Pakistan;
| | - Maryam Abdinejad
- Department of Physical and Environmental Sciences, University of Toronto Scarborough, 1265 Military Trail, Toronto, ON M1C 1A4, Canada;
| | - Asif Ali Tahir
- Environment and Sustainability Institute, University of Exeter, Penryn, Cornwall TR10 9FE, UK;
| | - Habib Ullah
- Environment and Sustainability Institute, University of Exeter, Penryn, Cornwall TR10 9FE, UK;
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