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Guo JY, He SQ, Jie Y, Song HT, Lu H, Xu XY, Zhao J, Zhang YF, Hu CX, Lu J, Yan H. Mechanism of Autocatalytic Reduction of CO 2 over MgCO 3 to High Value-Added Chemicals: A DFT & AIMD Study. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:17796-17806. [PMID: 39121350 DOI: 10.1021/acs.langmuir.4c02286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/11/2024]
Abstract
Calcination of MgCO3 is an important industrial reaction, but it causes significant and unfavorable CO2 production. Calcination in a reducing green hydrogen atmosphere can substantially reduce CO2 release and produce high value-added products such as CO or hydrocarbons, but the mechanism is still unclear. Here, the in situ transformation process of MgCO3 interacting with hydrogen and the specific formation mechanism of the high value-added products are thoroughly investigated based on reaction thermodynamic, ab initio molecular dynamics (AIMD) simulations, and density functional theory (DFT) calculations. The reaction thermodynamic parameters of MgCO3 coupled with hydrogen to produce CO or methane are calculated, revealing that increasing and decreasing the thermal reductive decomposition temperature favors the production of CO and methane, respectively. Kinetically, the energy barriers of each possible production pathway for the dominant products CO and methane are further calculated in conjunction with the AIMD simulation results of the transformation process. The results suggest that CO is produced via the MgO catalytic-carboxyl pathway (CO2*→ COOH*trans→ COOH*cis→ CO*→ CO), which is autocatalyzed by MgO derived from the thermal reductive decomposition of MgCO3. For the mechanism of methane formation, it prefers to be produced by the stepwise interaction of carbonates in the MgCO3 laminates with hydrogen adsorbed on their surfaces (direct conversion pathway: sur-O-CO → sur-O-HCO → sur-O-HCOH → sur-O-HC → sur-O-CH2 → sur-O-CH3 → sur-O + CH4*).
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Affiliation(s)
- Jing-Yi Guo
- State Key Laboratory of Chemical Resource Engineering, College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, China
| | - Shi-Qi He
- State Key Laboratory of Chemical Resource Engineering, College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, China
| | - Yao Jie
- State Key Laboratory of Chemical Resource Engineering, College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, China
| | - Hui-Ting Song
- State Key Laboratory of Chemical Resource Engineering, College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, China
| | - Hao Lu
- State Key Laboratory of Chemical Resource Engineering, College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, China
| | - Xin-Yu Xu
- State Key Laboratory of Chemical Resource Engineering, College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, China
| | - Jia Zhao
- State Key Laboratory of Chemical Resource Engineering, College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, China
| | - Yi-Fan Zhang
- State Key Laboratory of Chemical Resource Engineering, College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, China
| | - Chen-Xu Hu
- State Key Laboratory of Chemical Resource Engineering, College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, China
| | - Jun Lu
- State Key Laboratory of Chemical Resource Engineering, College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, China
| | - Hong Yan
- State Key Laboratory of Chemical Resource Engineering, College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, China
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Zhang S, Xin Y, Sun Y, Xi Z, Wei G, Han M, Liang B, Ou P, Xu K, Qiu J, Huang Z. Particle size effect on surface/interfacial tension and Tolman length of nanomaterials: A simple experimental method combining with theoretical. J Chem Phys 2024; 160:194708. [PMID: 38757618 DOI: 10.1063/5.0204848] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2024] [Accepted: 04/23/2024] [Indexed: 05/18/2024] Open
Abstract
Surface tension and interfacial tension are crucial to the study of nanomaterials. Herein, we report a solubility method using magnesium oxide nanoparticles of different radii (1.8-105.0 nm, MgO NPs) dissolved in pure water as a targeted model; the surface tension and interfacial tension (and their temperature coefficients) were determined by measuring electrical conductivity and combined with the principle of the electrochemical equilibrium method, and the problem of particle size dependence is discussed. Encouragingly, this method can also be used to determine the ionic (atomic or molecular) radius and Tolman length of nanomaterials. This research results disclose that surface/interfacial tension and their temperature coefficients have a significant relationship with particle size. Surface/interfacial tension decreases rapidly with a radius <10 nm (while the temperature coefficients are opposite), while for a radius >10 nm, the effect is minimal. Especially, it is proven that the value of Tolman length is positive, the effect of particle size on Tolman length is consistent with the surface/interfacial tension, and the Tolman length of the bulk does not change much in the temperature range. This work initiates a new era for reliable determination of surface/interfacial tension, their temperature coefficients, ionic radius, and Tolman length of nanomaterials and provides an important theoretical basis for the development and application of various nanomaterials.
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Affiliation(s)
- Shengjiang Zhang
- School of Chemical Engineering, Xi'an Key Laboratory of Special Energy Materials, Northwest University, Xi'an 710069, People's Republic of China
- Department of Chemistry and Chemical Engineering, Guangxi Minzu University, Key Laboratory of Chemistry and Engineering of Forest Products, State Ethnic Affairs Commission, Guangxi Key Laboratory of Chemistry and Engineering of Forest Products, Guangxi Collaborative Innovation Center for Chemistry and Engineering of Forest Products, Key Laboratory of Guangxi Colleges and Universities for Food Safety and Pharmaceutical Analytical Chemistry, Nanning 530006, People's Republic of China
| | - Yujia Xin
- School of Chemical Engineering, Xi'an Key Laboratory of Special Energy Materials, Northwest University, Xi'an 710069, People's Republic of China
| | - Yanan Sun
- School of Chemical Engineering, Xi'an Key Laboratory of Special Energy Materials, Northwest University, Xi'an 710069, People's Republic of China
| | - Ziheng Xi
- Department of Chemistry and Chemical Engineering, Guangxi Minzu University, Key Laboratory of Chemistry and Engineering of Forest Products, State Ethnic Affairs Commission, Guangxi Key Laboratory of Chemistry and Engineering of Forest Products, Guangxi Collaborative Innovation Center for Chemistry and Engineering of Forest Products, Key Laboratory of Guangxi Colleges and Universities for Food Safety and Pharmaceutical Analytical Chemistry, Nanning 530006, People's Republic of China
| | - Gan Wei
- Department of Chemistry and Chemical Engineering, Guangxi Minzu University, Key Laboratory of Chemistry and Engineering of Forest Products, State Ethnic Affairs Commission, Guangxi Key Laboratory of Chemistry and Engineering of Forest Products, Guangxi Collaborative Innovation Center for Chemistry and Engineering of Forest Products, Key Laboratory of Guangxi Colleges and Universities for Food Safety and Pharmaceutical Analytical Chemistry, Nanning 530006, People's Republic of China
| | - Meng Han
- Department of Chemistry and Chemical Engineering, Guangxi Minzu University, Key Laboratory of Chemistry and Engineering of Forest Products, State Ethnic Affairs Commission, Guangxi Key Laboratory of Chemistry and Engineering of Forest Products, Guangxi Collaborative Innovation Center for Chemistry and Engineering of Forest Products, Key Laboratory of Guangxi Colleges and Universities for Food Safety and Pharmaceutical Analytical Chemistry, Nanning 530006, People's Republic of China
| | - Bing Liang
- Department of Chemistry and Chemical Engineering, Guangxi Minzu University, Key Laboratory of Chemistry and Engineering of Forest Products, State Ethnic Affairs Commission, Guangxi Key Laboratory of Chemistry and Engineering of Forest Products, Guangxi Collaborative Innovation Center for Chemistry and Engineering of Forest Products, Key Laboratory of Guangxi Colleges and Universities for Food Safety and Pharmaceutical Analytical Chemistry, Nanning 530006, People's Republic of China
| | - Panpan Ou
- Wuzhou Product Quality Inspection Institute, Wuzhou 543002, People's Republic of China
| | - Kangzhen Xu
- School of Chemical Engineering, Xi'an Key Laboratory of Special Energy Materials, Northwest University, Xi'an 710069, People's Republic of China
| | - Jiangyuan Qiu
- Department of Chemistry and Chemical Engineering, Guangxi Minzu University, Key Laboratory of Chemistry and Engineering of Forest Products, State Ethnic Affairs Commission, Guangxi Key Laboratory of Chemistry and Engineering of Forest Products, Guangxi Collaborative Innovation Center for Chemistry and Engineering of Forest Products, Key Laboratory of Guangxi Colleges and Universities for Food Safety and Pharmaceutical Analytical Chemistry, Nanning 530006, People's Republic of China
| | - Zaiyin Huang
- Department of Chemistry and Chemical Engineering, Guangxi Minzu University, Key Laboratory of Chemistry and Engineering of Forest Products, State Ethnic Affairs Commission, Guangxi Key Laboratory of Chemistry and Engineering of Forest Products, Guangxi Collaborative Innovation Center for Chemistry and Engineering of Forest Products, Key Laboratory of Guangxi Colleges and Universities for Food Safety and Pharmaceutical Analytical Chemistry, Nanning 530006, People's Republic of China
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3
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Manae MA, Dheer L, Rai S, Shetty S, Waghmare UV. Activation of CO 2 and CH 4 on MgO surfaces: mechanistic insights from first-principles theory. Phys Chem Chem Phys 2022; 24:1415-1423. [PMID: 34982078 DOI: 10.1039/d1cp04152e] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
One of the most challenging topics in heterogeneous catalysis is conversion of CH4 to higher hydrocarbons. Direct conversion of CH4 to ethylene can be achieved via the oxidative coupling of methane (OCM) reaction. Despite studies which have shown MgO to activate CH4 and initiate the OCM reaction, its large-scale applications face a significant impediment due to formation of a byproduct, CO2, and poisoning of the catalyst due to carbonate formation. In the present work, we address two aspects of the OCM reaction on MgO surfaces: carbonate formation on the surface of the catalyst, and (dissociative) adsorption of CH4. We use first-principles density functional theoretical calculations to determine the energetics and underlying mechanisms of interaction of CO2 and CH4 with various surfaces of MgO: (100), (110), and (111) (both Mg- and O-terminations), and the seldom studied, hydroxylated (111) MgO surface with O-termination. We find that the strength of the interaction of CO2 with MgO surfaces depends on several factors: their surface energies, coordination number of surface O atoms, and ability to donate electrons. However, the O-terminated (111) surface of MgO bucks all aforementioned factors, with only oxygen richness affecting its reactivity towards CO2. The interaction of CH4 with MgO surfaces depends primarily on the coordination number of the surface O atoms and the orientation of the CH4 molecule with respect to the surface. Finally, we provide insights into (a) formation of surface carbonates, which is relevant to CO2 capture and conversion, and (b) C-H bond activation on MgO surfaces, which is crucial for direct conversion of CH4 to value-added chemicals.
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Affiliation(s)
- Meghna A Manae
- Theoretical Sciences Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bangalore 560064, India.
| | - Lakshay Dheer
- Theoretical Sciences Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bangalore 560064, India.
| | - Sandhya Rai
- Shell India Markets Pvt. Ltd, Mahadeva Kodigehalli, Bengaluru, Karnataka 562149, India
| | - Sharan Shetty
- Shell India Markets Pvt. Ltd, Mahadeva Kodigehalli, Bengaluru, Karnataka 562149, India
| | - Umesh V Waghmare
- Theoretical Sciences Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bangalore 560064, India.
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Kurosawa R, Takeuchi M, Ryu J. Fourier-transform infrared and X-ray diffraction analyses of the hydration reaction of pure magnesium oxide and chemically modified magnesium oxide. RSC Adv 2021; 11:24292-24311. [PMID: 35479034 PMCID: PMC9039418 DOI: 10.1039/d1ra04290d] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Accepted: 07/05/2021] [Indexed: 11/21/2022] Open
Abstract
The magnesium hydroxide/magnesium oxide (Mg(OH)2/MgO) system is a promising chemical heat storage system that utilizes unused heat at the temperature range of 200-500 °C. We have previously reported that the addition of lithium chloride (LiCl) and/or lithium hydroxide (LiOH) promotes the dehydration of Mg(OH)2. The results revealed that LiOH primarily catalyzed the dehydration of the surface of Mg(OH)2, while LiCl promoted the dehydration of bulk Mg(OH)2. However, the roles of Li compounds in the hydration of MgO have not been discussed in detail. X-ray diffraction (XRD) and Fourier-transform infrared (FT-IR) techniques were used to analyze the effects of adding the Li compounds. The results revealed that the addition of LiOH promoted the diffusion of water into the MgO bulk phase and the addition of LiCl promoted the hydration of the MgO bulk phase. It was also observed that the concentration (number) of OH- affected hydration. The mechanism of hydration of pure and LiCl- (or LiOH)-added MgO has also been discussed.
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Affiliation(s)
- Ryo Kurosawa
- Graduate School of Engineering, Chiba University 1-33, Yayoi-cho, Inage-ku Chiba Japan
| | - Masato Takeuchi
- Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University 1-1, Gaku-en-cho, Naka-ku Sakai Osaka 599-8531 Japan
| | - Junichi Ryu
- Graduate School of Engineering, Chiba University 1-33, Yayoi-cho, Inage-ku Chiba Japan
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5
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Prihoda A, Will J, Duchstein P, Becit B, Lossin F, Schindler T, Berlinghof M, Steinrück HG, Bertram F, Zahn D, Unruh T. Interface between Water-Solvent Mixtures and a Hydrophobic Surface. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:12077-12086. [PMID: 32960065 DOI: 10.1021/acs.langmuir.0c02745] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The mechanism behind the stability of organic nanoparticles prepared by liquid antisolvent (LAS) precipitation without a specific stabilizing agent is poorly understood. In this work, we propose that the organic solvent used in the LAS process rapidly forms a molecular stabilizing layer at the interface of the nanoparticles with the aqueous dispersion medium. To confirm this hypothesis, n-octadecyltrichlorosilane (OTS)-functionalized silicon wafers in contact with water-solvent mixtures were used as a flat model system mimicking the solid-liquid interface of the organic nanoparticles. We studied the equilibrium structure of the interface by X-ray reflectometry (XRR) for water-solvent mixtures (methanol, ethanol, 1-propanol, 2-propanol, acetone, and tetrahydrofuran). The formation of an organic solvent-rich layer at the solid-liquid interface was observed. The layer thickness increases with the organic solvent concentration and correlates with the polar and hydrogen bond fraction of Hansen solubility parameters. We developed a self-consistent adsorption model via complementing adsorption isotherms obtained from XRR data with molecular dynamics simulations.
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Affiliation(s)
- Annemarie Prihoda
- Institute for Crystallography and Structural Physics (ICSP), Friedrich-Alexander-Universität Erlangen-Nürnberg, Staudtstr. 3, 91058 Erlangen, Germany
- Center for Nanoanalysis and Electron Microscopy (CENEM) and Interdisciplinary Center for Nanostructured Films (IZNF), Friedrich-Alexander-Universität Erlangen-Nürnberg, Cauerstr. 3, 91058 Erlangen, Germany
| | - Johannes Will
- Center for Nanoanalysis and Electron Microscopy (CENEM) and Interdisciplinary Center for Nanostructured Films (IZNF), Friedrich-Alexander-Universität Erlangen-Nürnberg, Cauerstr. 3, 91058 Erlangen, Germany
- Lehrstuhl für Werkstoffwissenschaften (Mikro- und Nanostrukturforschung), Friedrich-Alexander-Universität Erlangen-Nürnberg, Cauerstr. 3, 91058 Erlangen, Germany
| | - Patrick Duchstein
- Computer Chemistry Centre (CCC), Friedrich-Alexander-Universität Erlangen-Nürnberg, Nägelsbachstr. 25, 91052 Erlangen, Germany
| | - Bahanur Becit
- Computer Chemistry Centre (CCC), Friedrich-Alexander-Universität Erlangen-Nürnberg, Nägelsbachstr. 25, 91052 Erlangen, Germany
| | - Felix Lossin
- Institute for Crystallography and Structural Physics (ICSP), Friedrich-Alexander-Universität Erlangen-Nürnberg, Staudtstr. 3, 91058 Erlangen, Germany
| | - Torben Schindler
- Institute for Crystallography and Structural Physics (ICSP), Friedrich-Alexander-Universität Erlangen-Nürnberg, Staudtstr. 3, 91058 Erlangen, Germany
| | - Marvin Berlinghof
- Institute for Crystallography and Structural Physics (ICSP), Friedrich-Alexander-Universität Erlangen-Nürnberg, Staudtstr. 3, 91058 Erlangen, Germany
| | - Hans-Georg Steinrück
- Department Chemie, Universität Paderborn, Warburger Straße 100, 33098 Paderborn, Germany
| | | | - Dirk Zahn
- Computer Chemistry Centre (CCC), Friedrich-Alexander-Universität Erlangen-Nürnberg, Nägelsbachstr. 25, 91052 Erlangen, Germany
| | - Tobias Unruh
- Institute for Crystallography and Structural Physics (ICSP), Friedrich-Alexander-Universität Erlangen-Nürnberg, Staudtstr. 3, 91058 Erlangen, Germany
- Center for Nanoanalysis and Electron Microscopy (CENEM) and Interdisciplinary Center for Nanostructured Films (IZNF), Friedrich-Alexander-Universität Erlangen-Nürnberg, Cauerstr. 3, 91058 Erlangen, Germany
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6
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7
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Sayer T, Zhang C, Sprik M. Charge compensation at the interface between the polar NaCl(111) surface and a NaCl aqueous solution. J Chem Phys 2017; 147:104702. [DOI: 10.1063/1.4987019] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Thomas Sayer
- Department of Chemistry, University of Cambridge, Cambridge
CB2 1EW, United Kingdom
| | - Chao Zhang
- Department of Chemistry, University of Cambridge, Cambridge
CB2 1EW, United Kingdom
| | - Michiel Sprik
- Department of Chemistry, University of Cambridge, Cambridge
CB2 1EW, United Kingdom
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8
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Zobel M. Observing structural reorientations at solvent–nanoparticle interfaces by X-ray diffraction – putting water in the spotlight. ACTA CRYSTALLOGRAPHICA A-FOUNDATION AND ADVANCES 2016; 72:621-631. [DOI: 10.1107/s2053273316013516] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2016] [Accepted: 08/22/2016] [Indexed: 01/29/2023]
Abstract
Nanoparticles are attractive in a wide range of research genres due to their size-dependent properties, which can be in contrast to those of micrometre-sized colloids or bulk materials. This may be attributed, in part, to their large surface-to-volume ratio and quantum confinement effects. There is a growing awareness that stress and strain at the particle surface contribute to their behaviour and this has been included in the structural models of nanoparticles for some time. One significant oversight in this field, however, has been the fact that the particle surface affects its surroundings in an equally important manner. It should be emphasized here that the surface areas involved are huge and, therefore, a significant proportion of solvent molecules are affected. Experimental evidence of this is emerging, where suitable techniques to probe the structural correlations of liquids at nanoparticle surfaces have only recently been developed. The recent validation of solvation shells around nanoparticles has been a significant milestone in advancing this concept. Restructured ordering of solvent molecules at the surfaces of nanoparticles has an influence on the entire panoply of solvent–particle interactions during, for example, particle formation and growth, adhesion forces in industrial filtration, and activities of nanoparticle–enzyme complexes. This article gives an overview of the advances made in solvent–nanoparticle interface research in recent years: from description of the structure of bulk solids and liquidsviamacroscopic planar surfaces, to the detection of nanoscopic restructuring effects. Water–nanoparticle interfaces are given specific attention to illustrate and highlight their similarity to biological systems.
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9
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Haghighi FH, Hadadzadeh H, Farrokhpour H. Investigation of the in situ generation of oxide-free copper nanoparticles using pulsed-laser ablation of bulk copper in aqueous solutions of DNA bases. RSC Adv 2016. [DOI: 10.1039/c6ra22038j] [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
The pulsed-laser ablation method was used as a facile and green approach to prepare oxide-free copper nanoparticles, and was performed by laser ablation of a copper target in aqueous solutions of the DNA bases.
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Affiliation(s)
- Farid Hajareh Haghighi
- Department of Chemistry
- Isfahan University of Technology
- Isfahan 84156-83111
- Iran
- Department of Molecular Biotechnology
| | - Hassan Hadadzadeh
- Department of Chemistry
- Isfahan University of Technology
- Isfahan 84156-83111
- Iran
| | - Hossein Farrokhpour
- Department of Chemistry
- Isfahan University of Technology
- Isfahan 84156-83111
- Iran
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10
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Hofer TS, Tirler AO. Combining 2d-Periodic Quantum Chemistry with Molecular Force Fields: A Novel QM/MM Procedure for the Treatment of Solid-State Surfaces and Interfaces. J Chem Theory Comput 2015; 11:5873-87. [DOI: 10.1021/acs.jctc.5b00548] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Thomas S. Hofer
- Theoretical Chemistry Division,
Institute for General Inorganic and Theoretical Chemistry, Center
for Chemistry and Biomedicine, University of Innsbruck, Innrain
80-82, A-6020 Innsbruck, Austria
| | - Andreas O. Tirler
- Theoretical Chemistry Division,
Institute for General Inorganic and Theoretical Chemistry, Center
for Chemistry and Biomedicine, University of Innsbruck, Innrain
80-82, A-6020 Innsbruck, Austria
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11
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Petit T, Yuzawa H, Nagasaka M, Yamanoi R, Osawa E, Kosugi N, Aziz EF. Probing Interfacial Water on Nanodiamonds in Colloidal Dispersion. J Phys Chem Lett 2015; 6:2909-2912. [PMID: 26267179 DOI: 10.1021/acs.jpclett.5b00820] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The structure of interfacial water layers around nanoparticles dispersed in an aqueous environment may have a significant impact on their reactivity and on their interaction with biological species. Using transmission soft X-ray absorption spectroscopy in liquid, we demonstrate that the unoccupied electronic states of oxygen atoms from water molecules in aqueous colloidal dispersions of nanodiamonds have a different signature than bulk water. X-ray absorption spectroscopy can thus probe interfacial water molecules in colloidal dispersions. The impacts of nanodiamond surface chemistry and concentration on interfacial water electronic signature are discussed.
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Affiliation(s)
- Tristan Petit
- †Institute of Methods for Materials Development, Helmholtz-Zentrum Berlin, Albert-Einstein-Strasse 15, 12489 Berlin, Germany
| | - Hayato Yuzawa
- ‡Institute for Molecular Science, Myodaiji, Okazaki 444-8585, Japan
| | | | - Ryoko Yamanoi
- §Nanocarbon Research Institute, Shinshu University, Ueda, Nagano 386-8567, Japan
| | - Eiji Osawa
- §Nanocarbon Research Institute, Shinshu University, Ueda, Nagano 386-8567, Japan
| | - Nobuhiro Kosugi
- ‡Institute for Molecular Science, Myodaiji, Okazaki 444-8585, Japan
| | - Emad F Aziz
- †Institute of Methods for Materials Development, Helmholtz-Zentrum Berlin, Albert-Einstein-Strasse 15, 12489 Berlin, Germany
- ‡Institute for Molecular Science, Myodaiji, Okazaki 444-8585, Japan
- ∥Freie Universität Berlin, FB Physik, Arnimallee 14, 14195 Berlin, Germany
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12
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Zobel M, Neder RB, Kimber SAJ. Universal solvent restructuring induced by colloidal nanoparticles. Science 2015; 347:292-4. [DOI: 10.1126/science.1261412] [Citation(s) in RCA: 147] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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13
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Cornu D, Guesmi H, Laugel G, Krafft JM, Lauron-Pernot H. On the relationship between the basicity of a surface and its ability to catalyze transesterification in liquid and gas phases: the case of MgO. Phys Chem Chem Phys 2015; 17:14168-76. [DOI: 10.1039/c5cp00217f] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The influence of the basic properties of MgO is not the same for liquid and for gas phase transesterification.
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Affiliation(s)
- Damien Cornu
- Sorbonne Universités
- UPMC Univ Paris 06
- UMR 7197
- Laboratoire de Réactivité de Surface
- Ivry sur Seine
| | - Hazar Guesmi
- Sorbonne Universités
- UPMC Univ Paris 06
- UMR 7197
- Laboratoire de Réactivité de Surface
- Ivry sur Seine
| | - Guillaume Laugel
- Sorbonne Universités
- UPMC Univ Paris 06
- UMR 7197
- Laboratoire de Réactivité de Surface
- Ivry sur Seine
| | - Jean-Marc Krafft
- Sorbonne Universités
- UPMC Univ Paris 06
- UMR 7197
- Laboratoire de Réactivité de Surface
- Ivry sur Seine
| | - Hélène Lauron-Pernot
- Sorbonne Universités
- UPMC Univ Paris 06
- UMR 7197
- Laboratoire de Réactivité de Surface
- Ivry sur Seine
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14
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Laporte S, Finocchi F, Paulatto L, Blanchard M, Balan E, Guyot F, Saitta AM. Strong electric fields at a prototypical oxide/water interface probed by ab initio molecular dynamics: MgO(001). Phys Chem Chem Phys 2015; 17:20382-90. [DOI: 10.1039/c5cp02097b] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report a density-functional theory (DFT)-based study of the interface of bulk water with a prototypical oxide surface, MgO(001), and focus our study on the often-overlooked surface electric field.
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Affiliation(s)
- Sara Laporte
- Sorbonne Universités
- Université Pierre et Marie Curie Paris 06
- CNRS
- Muséum National d'Histoire Naturelle
- IRD
| | - Fabio Finocchi
- Sorbonne Universités
- Université Pierre et Marie Curie Paris 06
- CNRS
- UMR 7588
- Institut des NanoSciences de Paris
| | - Lorenzo Paulatto
- Sorbonne Universités
- Université Pierre et Marie Curie Paris 06
- CNRS
- Muséum National d'Histoire Naturelle
- IRD
| | - Marc Blanchard
- Sorbonne Universités
- Université Pierre et Marie Curie Paris 06
- CNRS
- Muséum National d'Histoire Naturelle
- IRD
| | - Etienne Balan
- Sorbonne Universités
- Université Pierre et Marie Curie Paris 06
- CNRS
- Muséum National d'Histoire Naturelle
- IRD
| | - François Guyot
- Sorbonne Universités
- Université Pierre et Marie Curie Paris 06
- CNRS
- Muséum National d'Histoire Naturelle
- IRD
| | - Antonino Marco Saitta
- Sorbonne Universités
- Université Pierre et Marie Curie Paris 06
- CNRS
- Muséum National d'Histoire Naturelle
- IRD
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15
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Tilocca A. Atomic-scale models of early-stage alkali depletion and SiO2-rich gel formation in bioactive glasses. Phys Chem Chem Phys 2015; 17:2696-702. [DOI: 10.1039/c4cp04711g] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Molecular dynamics simulations of Na+/H+-exchanged 45S5 Bioglass® reveal the co-existence of bonded and non-bonded hydroxyls, suggesting a direct mechanism for forming a silica-rich gel structure upon the initial ion exchange.
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Affiliation(s)
- Antonio Tilocca
- Department of Chemistry
- University College London
- London WC1H 0AJ
- UK
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16
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Tilocca A. Current challenges in atomistic simulations of glasses for biomedical applications. Phys Chem Chem Phys 2014; 16:3874-80. [DOI: 10.1039/c3cp54913e] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Atomic-scale simulations of bioglasses are being used to tackle several challenging aspects, such as new structural markers of bioactivity, ion migration and nanosized samples.
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Affiliation(s)
- Antonio Tilocca
- Department of Chemistry
- University College London
- London WC1H 0AJ, UK
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17
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Zhu R, Molinari M, Shapley TV, Parker SC. Modeling the Interaction of Nanoparticles with Mineral Surfaces: Adsorbed C60 on Pyrophyllite. J Phys Chem A 2013; 117:6602-11. [DOI: 10.1021/jp402835v] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Runliang Zhu
- Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China
- Department of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY, United Kingdom
| | - Marco Molinari
- Department of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY, United Kingdom
| | - Thomas V. Shapley
- Department of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY, United Kingdom
| | - Stephen C. Parker
- Department of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY, United Kingdom
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18
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Cornu D, Petitjean H, Costentin G, Guesmi H, Krafft JM, Lauron-Pernot H. Influence of natural adsorbates of magnesium oxide on its reactivity in basic catalysis. Phys Chem Chem Phys 2013; 15:19870-8. [DOI: 10.1039/c3cp53624f] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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19
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Affiliation(s)
- Claudine Noguera
- Institut des Nanosciences de Paris, UMR 7588, CNRS, and Université Pierre et Marie Curie, 4 Place Jussieu, 75005 Paris, France
| | - Jacek Goniakowski
- Institut des Nanosciences de Paris, UMR 7588, CNRS, and Université Pierre et Marie Curie, 4 Place Jussieu, 75005 Paris, France
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20
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Pore size and surface area control of MgO nanostructures using a surfactant-templated hydrothermal process: High adsorption capability to azo dyes. Colloids Surf A Physicochem Eng Asp 2012. [DOI: 10.1016/j.colsurfa.2012.05.034] [Citation(s) in RCA: 93] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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21
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Spagnoli D, Gale JD. Atomistic theory and simulation of the morphology and structure of ionic nanoparticles. NANOSCALE 2012; 4:1051-1067. [PMID: 22139365 DOI: 10.1039/c1nr11106j] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Computational techniques are widely used to explore the structure and properties of nanomaterials. This review surveys the application of both quantum mechanical and force field based atomistic simulation methods to nanoparticles, with a particular focus on the methodologies available and the ways in which they can be utilised to study structure, phase stability and morphology. The main focus of this article is on partially ionic materials, from binary semiconductors through to mineral nanoparticles, with more detailed considered of three examples, namely titania, zinc sulphide and calcium carbonate.
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Affiliation(s)
- Dino Spagnoli
- Nanochemistry Research Institute, Department of Chemistry, Curtin University, PO Box U1987, Perth, WA 6845, Australia
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22
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Deshmukh SA, Sankaranarayanan SKRS. Atomic scale characterization of interfacial water near an oxide surface using molecular dynamics simulations. Phys Chem Chem Phys 2012; 14:15593-605. [DOI: 10.1039/c2cp42308a] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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23
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Yuwono VM, Burrows ND, Soltis JA, Anh Do T, Lee Penn R. Aggregation of ferrihydrite nanoparticles in aqueous systems. Faraday Discuss 2012. [DOI: 10.1039/c2fd20115a] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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24
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Finocchi F, Geysermans P, Bourgeois A. The role of hydroxylation in the step stability and in the interaction between steps: a first-principles study of vicinal MgO surfaces. Phys Chem Chem Phys 2012; 14:13692-701. [DOI: 10.1039/c2cp41835e] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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