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Khalilzadeh Z, Abbaspour M, Zonoz FM. Investigation of thermodynamics, and structural, dynamical, and electrical properties of polyoxometalate ionic liquid confined into carbon nanotubes during the melting process using molecular dynamics simulation. RSC Adv 2022; 13:624-631. [PMID: 36605668 PMCID: PMC9782402 DOI: 10.1039/d2ra04681d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Accepted: 12/16/2022] [Indexed: 12/24/2022] Open
Abstract
Understanding the properties of ionic liquids confined into nano-pores is required to use ionic liquids for many applications such as electrolytes for energy storage in capacitors and solar cells. Recently, polyoxometalate ionic liquids have attracted much attention for their potential applications in electrochemistry, catalysis, and nanotechnology. In this work, we have performed MD simulations on 1-ethyl-3-methylimidazolium Keggin ([emim]3[PW12O40]) confined into armchair (20,20) CNTs to study the thermal properties and melting process. Changes in the simulated results of configurational energy of confined polyoxometallate IL indicated that the melting range of the confined polyoxometalate IL is about 650-750 K. Heat capacity at constant volume of the confined IL is about 2 (cal K-1 mol-1) which shows sharp changes around the melting range. The average number of hydrogen bonds (〈HB〉) of the confined IL is about 2.8 which also presents sharp changes around the melting range. The ion conductivity and self-diffusion coefficient of [emim]3[PW12O40] IL also present a sharp maximum of 25 (S m-1) and 6 × 10-10 (m2 s-1) at the melting point. Our results did not show a significant hysteresis in the melting process and therefore, the process is reversible. Our simulation also indicated that the confinement of the polyoxometallate IL into the CNT increases its thermal stability and melting point. Our simulations also indicated that the type of CNT configuration has a small effect on the melting point of the confined polyoxometallate IL.
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Affiliation(s)
| | - Mohsen Abbaspour
- Dep. of Chemistry, Hakim Sabzevari UniversitySabzevarIran,Dep. of Chemistry, Faculty of Science, Ferdowsi University of MashhadMashhad 9177948974Iran
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Eidani M, Akbarzadeh H, Mehrjouei E, Abbaspour M, Salemi S, Yaghoubi H. Thermal Stability and Melting Mechanism of Diamond Nanothreads: Insight from Molecular Dynamics Simulation. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.130248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Lopes RC, Rocha BG, Maçôas EM, Marques EF, Martinho JM. Combining metal nanoclusters and carbon nanomaterials: Opportunities and challenges in advanced nanohybrids. Adv Colloid Interface Sci 2022; 304:102667. [PMID: 35462268 DOI: 10.1016/j.cis.2022.102667] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Revised: 04/06/2022] [Accepted: 04/06/2022] [Indexed: 12/11/2022]
Abstract
The development of functional materials with uniquely advanced properties lies at the core of nanoscience and nanotechnology. From the myriad possible combinations of organic and/or inorganic blocks, hybrids combining metal nanoclusters and carbon nanomaterials have emerged as highly attractive colloidal materials for imaging, sensing (optical and electrochemical) and catalysis, among other applications. While the metal nanoclusters provide extraordinary luminescent and electronic properties, the carbon nanomaterials (of zero, one or two dimensions) convey versatility, as well as unique interfacial, electronic, thermal, optical, and mechanical properties, which altogether can be put to use for the desired application. Herein, we present an overview of the field, for experts and non-experts, encompassing the basic properties of the building blocks, a systematic view of the chemical preparation routes and physicochemical properties of the hybrids, and a critical analysis of their ongoing and emerging applications. Challenges and opportunities, including directions towards green chemistry approaches, are also discussed.
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Gerber IC, Serp P. A Theory/Experience Description of Support Effects in Carbon-Supported Catalysts. Chem Rev 2019; 120:1250-1349. [DOI: 10.1021/acs.chemrev.9b00209] [Citation(s) in RCA: 274] [Impact Index Per Article: 54.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Iann C. Gerber
- LPCNO, Université de Toulouse, CNRS, INSA, UPS, 135 avenue de Rangueil, F-31077 Toulouse, France
| | - Philippe Serp
- LCC-CNRS, Université de Toulouse, UPR 8241 CNRS, INPT, 31400 Toulouse, France
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A comparative study of graphite and CNT supported Au-Ag, Au-Pd, Au-Pt and Au-Rh nanoalloys using MD simulation. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.02.045] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Abbaspour M, Akbarzadeh H, Salemi S, Lotfi S. Investigation of Possible Formation of Au@M (M = Cu, Ir, Pt, and Rh) Core–Shell Nanoclusters in a Condensation–Coalescence Process Using Molecular Dynamics Simulations. Ind Eng Chem Res 2018. [DOI: 10.1021/acs.iecr.8b03724] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Mohsen Abbaspour
- Department of Chemistry, Hakim Sabzevari University, 96179-76487 Sabzevar, Iran
| | - Hamed Akbarzadeh
- Department of Chemistry, Hakim Sabzevari University, 96179-76487 Sabzevar, Iran
| | - Sirous Salemi
- Department of Chemistry, Hakim Sabzevari University, 96179-76487 Sabzevar, Iran
| | - Samira Lotfi
- Department of Chemistry, Hakim Sabzevari University, 96179-76487 Sabzevar, Iran
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Akbarzadeh H, Abbaspour M, Mehrjouei E, Ramezanzadeh S. Pt-Co nanocluster in hollow carbon nanospheres. J Comput Chem 2018; 39:1267-1274. [DOI: 10.1002/jcc.25191] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2017] [Revised: 01/09/2018] [Accepted: 01/28/2018] [Indexed: 12/15/2022]
Affiliation(s)
- Hamed Akbarzadeh
- Department of Chemistry, Faculty of Basic Sciences; Hakim Sabzevari University; Sabzevar 96179-76487 Iran
| | - Mohsen Abbaspour
- Department of Chemistry, Faculty of Basic Sciences; Hakim Sabzevari University; Sabzevar 96179-76487 Iran
| | - Esmat Mehrjouei
- Department of Chemistry, Faculty of Basic Sciences; Hakim Sabzevari University; Sabzevar 96179-76487 Iran
| | - Samira Ramezanzadeh
- Department of Chemistry, Faculty of Basic Sciences; Hakim Sabzevari University; Sabzevar 96179-76487 Iran
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Akbarzadeh H, Abbaspour M, Mehrjouei E. Competition between stability of icosahedral and cuboctahedral morphologies in bimetallic nanoalloys. Phys Chem Chem Phys 2018; 19:14659-14670. [PMID: 28537621 DOI: 10.1039/c7cp01081h] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this study, we investigated the heating process for pure (Rh55 and Cu55), single dopant (Rh1Cu54 and Rh54Cu), core@shell (Rh13@Cu42 and Cu13@Rh42), and alloy (Rh13Cu42, Rh42Cu13) nanoclusters in two structures (cuboctahedral and icosahedral) from 0 to 2000 K using molecular dynamics (MD) simulations. Our aim was to investigate the effects of composition and chemical arrangement on the kinetic and thermodynamic stability of Rh-Cu bimetallic nanoalloys. Our results indicated that Cu55, Ir55, Rh1Cu54, Rh54Cu, and Cu13@Rh42 in the cuboctahedral and icosahedral structures and Rh42Cu13 in the icosahedral structure did not experience any transformation with the exception of melting. It was also observed that the cuboctahedral Rh42Cu13 shows a solid-solid transformation to the icosahedral structure before the melting point. It is also observed that Rh13@Cu42 and Rh13Cu42 nanoclusters in both structures exhibit a transition to a pseudo-spherical structure before the melting point. Our results also illustrated that the Rh and Cu atoms tend to lie in the inner and outer shells of the nanoclusters, respectively. We have also discussed the changes in the melting points of the doped nanoclusters in the different arrangements.
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Affiliation(s)
- Hamed Akbarzadeh
- Department of Chemistry, Faculty of Basic Sciences, Hakim Sabzevari University, 96179-76487 Sabzevar, Iran.
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Akbarzadeh H, Abbaspour M, Mehrjouei E. Phase transition in crown-jewel structured Au-Ir nanoalloys with different shapes: a molecular dynamics study. Phys Chem Chem Phys 2018; 18:25676-25686. [PMID: 27711431 DOI: 10.1039/c6cp04218j] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We have studied the melting process for crown-jewel structured Ir55, Ir54Au, Ir43Au12, Ir25Au30, Ir13Au42, and Au55 nanoclusters in the icosahedral, Ir55, Ir54Au, Ir43Au12, Ir19Au36, Ir13Au42, and Au55 nanoclusters in the cuboctahedral, and Ir54, Ir53Au, Ir47Au7, Ir17Au37, Ir7Au47, and Au54 nanoclusters in the decahedral morphologies. We have investigated the different thermodynamic, structural, and dynamical properties for the different nanoclusters in the different structures. Our thermodynamic results indicated that as the concentration of Au atoms in the nanoclusters increases, the absolute value of internal energy, and so the melting points, of the nanoclusters decrease. It is also shown that the Au atoms decrease the melting temperature of the pure cuboctahedral cluster more than that of the other structures. We have also found that the Au atoms were located in favorable positions at the surface sites of nanoalloys. Also, the doping of the Ir nanocluster by Au atoms makes the cluster more stable. It is also found that nanoclusters with different morphologies have almost the same stability. Our structural results indicated that after the melting process, the Au atoms generally tend to lie in the outer shell of the cluster, but the Ir atoms generally tend to lie in the core of the cluster (see the Ir13Au42 and Ir7Au47 nanoclusters, for example). We have also found the interesting result that the Ir7Au47 nanocluster shows a solid-solid transition from a decahedral structure to an icosahedral structure before melting. The Ir43Au12 nanocluster also shows a transformation from a cuboctahedral structure to an icosahedral-like structure before melting. Our dynamical results showed that doping of the Ir55 cluster with an Au atom sharply increases the self-diffusion coefficient in the initial state in the solid phase, especially in icosahedral and cuboctahedral structures. It is also shown that the Ir13Au42 cluster in icosahedral and cuboctahedral and the Ir7Au47 and Ir17Au37 clusters in decahedral morphologies have smaller values of self-diffusion coefficients than other clusters after the melting point and that this could be due to the formation of core-shell structures.
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Affiliation(s)
- Hamed Akbarzadeh
- Department of Chemistry, Faculty of Basic Sciences, Hakim Sabzevari University, 96179-76487 Sabzevar, Iran.
| | - Mohsen Abbaspour
- Department of Chemistry, Faculty of Basic Sciences, Hakim Sabzevari University, 96179-76487 Sabzevar, Iran.
| | - Esmat Mehrjouei
- Department of Chemistry, Faculty of Basic Sciences, Hakim Sabzevari University, 96179-76487 Sabzevar, Iran.
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Effect of systematic addition of the third component on the melting characteristics and structural evolution of binary alloy nanoclusters. J Mol Liq 2018. [DOI: 10.1016/j.molliq.2017.11.075] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Akbarzadeh H, Mehrjouei E, Ramezanzadeh S, Izanloo C. Ni-Co bimetallic nanoparticles with core-shell, alloyed, and Janus structures explored by MD simulation. J Mol Liq 2017. [DOI: 10.1016/j.molliq.2017.10.135] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Coalescence process of gold/silver core-shell nanoparticles located on carbon nanotube and graphene surfaces. J Mol Liq 2017. [DOI: 10.1016/j.molliq.2017.10.104] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Akbarzadeh H, Izanloo C, Moradi A. Thermal stabilities of iron nanoparticles under hydrostatic pressure. J Mol Liq 2017. [DOI: 10.1016/j.molliq.2017.06.032] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Different morphologies of aluminum nanoclusters: Effect of pressure on solid-liquid phase transition of the nanoclusters using molecular dynamics simulations. J Mol Liq 2017. [DOI: 10.1016/j.molliq.2016.12.117] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Investigation of size dependence of the properties of Cu nanoclusters using molecular dynamics simulations. J Mol Liq 2016. [DOI: 10.1016/j.molliq.2016.03.032] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Akbarzadeh H, Abbaspour M. Investigation of melting and freezing of Ag–Au alloy nanoclusters supported on carbon nanotube using molecular dynamics simulations. J Mol Liq 2016. [DOI: 10.1016/j.molliq.2016.02.007] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Abbaspour M, Akbarzadeh H, Salemi S, Sotoudeh A. Properties of silver nanoclusters and bulk silver, using a new and accurate HFD-like potential, including many-body interactions: the inversion scheme and molecular dynamics simulation. RSC Adv 2016. [DOI: 10.1039/c6ra02844f] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A new potential function was obtained for silver nanoclusters and bulk silver via the inversion of viscosity collision integrals of monatomic silver vapor.
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Affiliation(s)
| | | | - Sirous Salemi
- Department of Chemistry
- Hakim Sabzevari University
- Sabzevar
- Iran
| | - Ali Sotoudeh
- Department of Chemistry
- Hakim Sabzevari University
- Sabzevar
- Iran
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Abbaspour M, Akbarzadeh H, Abroodi M. A new and accurate expression for the radial distribution function of confined Lennard-Jones fluid in carbon nanotubes. RSC Adv 2015. [DOI: 10.1039/c5ra16151g] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
A new and accurate expression for the RDF of confined LJ fluid into carbon nanotubes has been obtained.
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