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Zakhtser A, Naitabdi A, Benbalagh R, Rochet F, Salzemann C, Petit C, Giorgio S. Chemical Evolution of Pt-Zn Nanoalloys Dressed in Oleylamine. ACS NANO 2021; 15:4018-4033. [PMID: 32786209 DOI: 10.1021/acsnano.0c03366] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
We report on the shape, composition (from Pt95Zn5 to Pt77Zn23), and surface chemistry of Pt-Zn nanoparticles obtained by reduction of precursors M2+(acac)2- (M2+: Pt2+ and Zn2+) in oleylamine, which serves as both solvent and ligand. We show first that the addition of phenyl ether or benzyl ether determines the composition and shape of the nanoparticles, which point to an adsorbate-controlled synthesis. The organic (ligand)/inorganic (nanoparticles) interface is characterized on the structural and chemical level. We observe that the particles, after washing with ethanol, are coated with oleylamine and the oxidation products of the latter, namely, an aldimine and a nitrile. After exposure to air, the particles oxidize, covering themselves with a few monolayer thick ZnO film, which is certainly discontinuous when the particles are low in zinc. Pt-Zn particles are unstable and prone to losing Zn. We have strong indications that the driving force is the preferential oxidation of the less noble metal. Finally, we show that adsorption of CO on the surface of nanoparticles modifies the oxidation state of amine ligands and attribute it to the displacement of hydrogen adsorbed on Pt. All the structural and chemical information provided by the combination of electron microscopy and X-ray photoelectron spectroscopy allows us to give a fairly accurate picture of the surface of nanoparticles and to better understand why Pt-Zn alloys are efficient in certain electrocatalytic reactions such as the oxidation of methanol.
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Affiliation(s)
- Alter Zakhtser
- Sorbonne Université, CNRS, MONARIS, UMR 8233, 4 Place Jussieu, 75005 Paris, France
- Sorbonne Université, CNRS, LCPMR, UMR 7614, 4 Place Jussieu, 75005 Paris, France
| | - Ahmed Naitabdi
- Sorbonne Université, CNRS, LCPMR, UMR 7614, 4 Place Jussieu, 75005 Paris, France
| | - Rabah Benbalagh
- Sorbonne Université, CNRS, LCPMR, UMR 7614, 4 Place Jussieu, 75005 Paris, France
| | - François Rochet
- Sorbonne Université, CNRS, LCPMR, UMR 7614, 4 Place Jussieu, 75005 Paris, France
| | - Caroline Salzemann
- Sorbonne Université, CNRS, MONARIS, UMR 8233, 4 Place Jussieu, 75005 Paris, France
| | - Christophe Petit
- Sorbonne Université, CNRS, MONARIS, UMR 8233, 4 Place Jussieu, 75005 Paris, France
| | - Suzanne Giorgio
- Aix Marseille Université, CNRS, CINaM, UMR 7325, 13288 Marseille, France
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2
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Akbarzadeh H, Mehrjouei E, Moradi A, Shamkhali AN. Rattle, Porous, and Dense Cores and Discontinuous Porous, Continuous Porous, and Dense Shells in Pt@Au Core–Shell Nanoparticles. Ind Eng Chem Res 2018. [DOI: 10.1021/acs.iecr.8b00017] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Hamed Akbarzadeh
- 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
| | - Arezoo Moradi
- Department of Chemistry, Faculty of Basic Sciences, Hakim Sabzevari University, 96179-76487 Sabzevar, Iran
| | - Amir Nasser Shamkhali
- Department of Chemistry, Faculty of Sciences, University of Mohaghegh Ardabili, 56199-11367 Ardabil, Iran
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3
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Kameche F, Six A, Charra F, Ngo AT, Mathevet F, Salzemann C, Kreher D, Arfaoui I, Attias AJ, Petit C. Directed Organization of Platinum Nanocrystals through Organic Supramolecular Nanoporous Templates. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:12759-12765. [PMID: 29028348 DOI: 10.1021/acs.langmuir.7b01893] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
We propose a novel approach to trap 2 nm Pt nanocrystals using nanoporous two-dimensional supramolecular networks for cavity-confined host-guest recognition process. This will be achieved by taking advantage of two features of supramolecular self-assembly at surfaces: First, its capability to allow the formation of complex 2D architectures, more particularly, nanoporous networks, through noncovalent interactions between organic molecular building-blocks; second, the ability of the nanopores to selectively host and immobilize a large variety of guest species. In this paper, for the first time, we will use isotropic honeycomb networks and anisotropic linear porous supramolecular networks to host 2 nm Pt nanocrystals.
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Affiliation(s)
- Farid Kameche
- Sorbonne Universités, UPMC Univ Paris 06, MONARIS, UMR CNRS 8233, 4 Place Jussieu, 75252 Paris Cedex 05, France
- Sorbonne Universités, UPMC Univ Paris 06, Institut Parisien de Chimie Moléculaire, UMR CNRS 8232, 4 Place Jussieu, 75252 Paris Cedex 05, France
- Service de Physique de l'Etat Condensé, CEA CNRS Université Paris-Saclay, CEA Saclay , F-91191 Gif-sur-Yvette Cedex, France
| | - Alice Six
- Sorbonne Universités, UPMC Univ Paris 06, Institut Parisien de Chimie Moléculaire, UMR CNRS 8232, 4 Place Jussieu, 75252 Paris Cedex 05, France
| | - Fabrice Charra
- Service de Physique de l'Etat Condensé, CEA CNRS Université Paris-Saclay, CEA Saclay , F-91191 Gif-sur-Yvette Cedex, France
| | - Anh-Tu Ngo
- Sorbonne Universités, UPMC Univ Paris 06, MONARIS, UMR CNRS 8233, 4 Place Jussieu, 75252 Paris Cedex 05, France
| | - Fabrice Mathevet
- Sorbonne Universités, UPMC Univ Paris 06, Institut Parisien de Chimie Moléculaire, UMR CNRS 8232, 4 Place Jussieu, 75252 Paris Cedex 05, France
| | - Caroline Salzemann
- Sorbonne Universités, UPMC Univ Paris 06, MONARIS, UMR CNRS 8233, 4 Place Jussieu, 75252 Paris Cedex 05, France
| | - David Kreher
- Sorbonne Universités, UPMC Univ Paris 06, Institut Parisien de Chimie Moléculaire, UMR CNRS 8232, 4 Place Jussieu, 75252 Paris Cedex 05, France
| | - Imad Arfaoui
- Sorbonne Universités, UPMC Univ Paris 06, MONARIS, UMR CNRS 8233, 4 Place Jussieu, 75252 Paris Cedex 05, France
| | - André-Jean Attias
- Sorbonne Universités, UPMC Univ Paris 06, Institut Parisien de Chimie Moléculaire, UMR CNRS 8232, 4 Place Jussieu, 75252 Paris Cedex 05, France
| | - Christophe Petit
- Sorbonne Universités, UPMC Univ Paris 06, MONARIS, UMR CNRS 8233, 4 Place Jussieu, 75252 Paris Cedex 05, France
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4
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Kameche F, Ngo AT, Salzemann C, Cordeiro M, Sutter E, Petit C. Role of the nanocrystallinity on the chemical ordering of Co(x)Pt(100-x) nanocrystals synthesized by wet chemistry. Phys Chem Chem Phys 2015; 17:28162-70. [PMID: 25805247 DOI: 10.1039/c5cp01062d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Co(x)Pt(100-x) nanoalloys have been synthesized by two different chemical processes either at high or at low temperature. Their physical properties and the order/disorder phase transition induced by annealing have been investigated depending on the route of synthesis. It is demonstrated that the chemical synthesis at high temperature allows stabilization of the fcc structure of the native nanoalloys while the soft chemical approach yields mainly poly or non crystalline structure. As a result the approach of the order/disorder phase transition is strongly modified as observed by high-resolution transmission electron microscopy (HR-TEM) studies performed during in situ annealing of the different nanoalloys. The control of the nanocrystallinity leads to significant decrease in the chemical ordering temperature as the ordered structure is observed at temperatures as low as 420 °C. This in turn preserves the individual nanocrystals and prevents their coalescence usually observed during the annealing necessary for the transition to an ordered phase.
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Affiliation(s)
- Farid Kameche
- Sorbonne Universités, UPMC Univ Paris 06, UMR 8233, MONARIS, 4 place Jussieu, F-75005, Paris, France.
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5
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Salzemann C, Kameche F, Ngo AT, Andreazza P, Calatayud M, Petit C. Platinum and platinum based nanoalloys synthesized by wet chemistry. Faraday Discuss 2015; 181:19-36. [DOI: 10.1039/c5fd00002e] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Platinum nanocrystals and their derivatives with palladium and cobalt are of fundamental interest due to their wide field of application in chemistry and physics. Their properties are strongly dependent on their shape and composition. However the chemical route is far from allowing control of both shape and composition. In this paper, we show both experimentally and theoretically the important role of the interaction of small adsorbed molecules on the shape but also on the composition. This has been studied by comparing the case of pure palladium and platinum nanocrystals and the case of PtPd and PtCo nanoalloys synthesized by the liquid–liquid phase transfer method.
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Affiliation(s)
| | - Farid Kameche
- Sorbonne Universités
- UPMC Univ Paris 06
- UMR 8233
- MONARIS
- Paris
| | - Anh-Tu Ngo
- Sorbonne Universités
- UPMC Univ Paris 06
- UMR 8233
- MONARIS
- Paris
| | - Pascal Andreazza
- Centre de Recherche sur la Matière Divisée
- CRMD
- Université d'Orléans
- CNRS
- Orléans Cedex 2
| | - Monica Calatayud
- Sorbonne Universités
- UPMC Univ Paris 06
- UMR 7616
- Laboratoire de Chimie Théorique
- Paris
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6
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Choi E, Lee S, Piao Y. A solventless mix–bake–wash approach to the facile controlled synthesis of core–shell and alloy Ag–Cu bimetallic nanoparticles. CrystEngComm 2015. [DOI: 10.1039/c5ce00670h] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A solventless mix–bake–wash method using salt powder was developed to fabricate uniform Ag–Cu core–shell and alloy bimetallic nanoparticles.
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Affiliation(s)
- Eunjin Choi
- Program in Nano Science and Technology
- Department of Transdisciplinary Studies
- Graduate School of Convergence Science and Technology
- Seoul National University
- Seoul 151-742, Republic of Korea
| | - Sohee Lee
- Program in Nano Science and Technology
- Department of Transdisciplinary Studies
- Graduate School of Convergence Science and Technology
- Seoul National University
- Seoul 151-742, Republic of Korea
| | - Yuanzhe Piao
- Program in Nano Science and Technology
- Department of Transdisciplinary Studies
- Graduate School of Convergence Science and Technology
- Seoul National University
- Seoul 151-742, Republic of Korea
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7
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Kovács G, Kozlov SM, Matolínová I, Vorokhta M, Matolín V, Neyman KM. Revealing chemical ordering in Pt–Co nanoparticles using electronic structure calculations and X-ray photoelectron spectroscopy. Phys Chem Chem Phys 2015; 17:28298-310. [DOI: 10.1039/c5cp01070e] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
PtYCo1−Y-core@Co-rich-subsurface@Pt-shell structure is identified in several nm large Pt–Co particles using X-ray photoelectron spectroscopy and an optimization method based on density-functional calculations.
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Affiliation(s)
- Gábor Kovács
- Departament de Química Física and Institut de Química Teòrica i Computacional (IQTCUB)
- Universitat de Barcelona
- 08028 Barcelona
- Spain
| | - Sergey M. Kozlov
- Departament de Química Física and Institut de Química Teòrica i Computacional (IQTCUB)
- Universitat de Barcelona
- 08028 Barcelona
- Spain
| | - Iva Matolínová
- Department of Surface and Plasma Science
- Charles University
- 18000 Prague
- Czech Republic
| | - Mykhailo Vorokhta
- Department of Surface and Plasma Science
- Charles University
- 18000 Prague
- Czech Republic
| | - Vladimír Matolín
- Department of Surface and Plasma Science
- Charles University
- 18000 Prague
- Czech Republic
| | - Konstantin M. Neyman
- Departament de Química Física and Institut de Química Teòrica i Computacional (IQTCUB)
- Universitat de Barcelona
- 08028 Barcelona
- Spain
- Institució Catalana de Recerca i Estudis Avançats (ICREA)
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8
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Le Vot S, Dambournet D, Groult H, Ngo AT, Petit C, Rizzi C, Salzemann C, Sirieix-Plenet J, Borkiewicz OJ, Raymundo-Piñero E, Gaillon L. Synthesis of tin nanocrystals in room temperature ionic liquids. Dalton Trans 2014; 43:18025-34. [DOI: 10.1039/c4dt02289k] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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9
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Bersani M, Conte L, Martucci A, Guglielmi M, Mattei G, Bello V, Rosei R, Centazzo M. Transmetallation as an effective strategy for the preparation of bimetallic CoPd and CuPd nanoparticles. NANOSCALE 2014; 6:1560-1566. [PMID: 24322302 DOI: 10.1039/c3nr04409b] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
The preparation of palladium alloy nanoparticles is of great interest for many applications, especially in catalysis. Starting from presynthesized nanoparticles of a less noble metal, a transmetallation reaction involving a redox process at the nanoparticle surface can be exploited to modify the nanoparticle composition and crystalline phase. As an example, monodispersed ε-cobalt and face-centered cubic copper nanoparticles were synthesized in organic solvents at high temperature and the as-formed nanoparticles were reacted with palladium(ii) hexafluoroacetylacetonate resulting in the formation of alloyed nanoparticles whose composition closely follows the reactant ratio. The oxidative state of the nanoparticle surface greatly affects the success of the transmetallation reaction and a reduction treatment was necessary to achieve the desired final product. Electron microscopy and X-ray diffraction showed that for cobalt a limiting palladium content for the ε-phase alloy is found, above which an fcc alloy nucleates, while for copper the fcc crystalline phase is preserved throughout the whole composition range.
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Affiliation(s)
- Marco Bersani
- University of Padova, Department of Industrial Engineering, via F. Marzolo 9, 35131 Padova, Italy.
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10
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Iacob M, Cazacu M, Racles C, Ignat M, Cozan V, Sacarescu L, Timpu D, Kajňaková M, Botko M, Feher A, Turta C. Iron–chromium oxide nanoparticles self-assembling into smectic mesophases. RSC Adv 2014. [DOI: 10.1039/c3ra47072e] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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11
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Coordination complex synthesis of noble metals in the preparation of nanoparticles supported on MWCNTs used as electrocatalysts. Inorganica Chim Acta 2013. [DOI: 10.1016/j.ica.2013.06.042] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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12
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Mohapatra J, Mitra A, Bahadur D, Aslam M. Surface controlled synthesis of MFe2O4(M = Mn, Fe, Co, Ni and Zn) nanoparticles and their magnetic characteristics. CrystEngComm 2013. [DOI: 10.1039/c2ce25957e] [Citation(s) in RCA: 140] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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13
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Chan H, Demortière A, Vukovic L, Král P, Petit C. Colloidal nanocube supercrystals stabilized by multipolar Coulombic coupling. ACS NANO 2012; 6:4203-4213. [PMID: 22502636 DOI: 10.1021/nn3007338] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
We explore microscopic principles governing the self-assembly of colloidal octylamine-coated platinum nanocubes solvated in toluene. Our experiments show that regular nanocubes with an edge length of l(RC) = 5.5 nm form supercrystals with simple cubic packing, while slightly truncated nanocubes with an edge length of l(TC) = 4.7 nm tend to arrange in fcc packing. We model by averaged force fields and atomistic molecular dynamics simulations the coupling forces between these nanocrystals. Our detailed analysis shows that the fcc packing, which for cubes has a lower density than simple cubic packing, is favored by the truncated nanocubes due to their Coulombic coupling by multipolar electrostatic fields, formed during charge transfer between the octylamine ligands and the Pt cores.
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Affiliation(s)
- Henry Chan
- Department of Chemistry, University of Illinois at Chicago, Chicago, Illinois 60607, USA
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14
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Colloidal Syntheses of Shape- and Size-Controlled Pt Nanoparticles for Electrocatalysis. Electrocatalysis (N Y) 2012. [DOI: 10.1007/s12678-012-0079-0] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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15
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Demortière A, Panissod P, Pichon BP, Pourroy G, Guillon D, Donnio B, Bégin-Colin S. Size-dependent properties of magnetic iron oxide nanocrystals. NANOSCALE 2011; 3:225-32. [PMID: 21060937 DOI: 10.1039/c0nr00521e] [Citation(s) in RCA: 206] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
The fine control of iron oxide nanocrystal sizes within the nanometre scale (diameters range from 2.5 to 14 nm) allows us to investigate accurately the size-dependence of their structural and magnetic properties. A study of the growth conditions of these nanocrystals obtained by thermal decomposition of an iron oleate precursor in high-boiling point solvents has been carried out. Both the type of solvent used and the ligand/precursor ratio have been systematically varied, and were found to be the key parameters to control the growth process. The lattice parameters of all the nanocrystals deduced from X-ray diffraction measurements are consistent with a structure of the type Fe3-xO4, i.e. intermediate between magnetite and maghemite, which evolves toward the maghemite structure for the smallest sizes (x=1/3). The evolution of the magnetic behavior with nanoparticle sizes emphasizes clearly the influence of the surface, especially on the saturation magnetization Ms and the magneto-crystalline anisotropy K. Dipolar interactions and thermal dependence have been also taken into account in the study on the nanoscale size-effect of magnetic properties.
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Affiliation(s)
- A Demortière
- Institut de Physique et Chimie des Matériaux (IPCMS), UMR 7504 Université de Strasbourg-CNRS, 23, rue du Loess, BP 43, 67034, Strasbourg Cedex 2, France
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16
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Yang J, Lee JY, Ying JY. Phase transfer and its applications in nanotechnology. Chem Soc Rev 2011; 40:1672-96. [DOI: 10.1039/b916790k] [Citation(s) in RCA: 194] [Impact Index Per Article: 14.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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17
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Rodríguez-Manzo JA, Tolvanen A, Krasheninnikov AV, Nordlund K, Demortière A, Banhart F. Defect-induced junctions between single- or double-wall carbon nanotubes and metal crystals. NANOSCALE 2010; 2:901-905. [PMID: 20648284 DOI: 10.1039/c0nr00098a] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Interfaces between the ends of single- or double-wall carbon nanotubes and metal crystals (Fe, Co, Pd, and Pt) are established by electron irradiation with nanometre precision at metal-nanotube contact areas. Calculations of the bonding energies at the metal-nanotube interfaces confirm that the formation of these covalent junctions is energetically favourable in the presence of a certain concentration of structural defects in the nanotubes. The process may be endothermic or exothermic in comparison with the unconnected configuration, but in either case atomic defects in carbon nanotubes are a necessary condition for joining them with metals.
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Affiliation(s)
- Julio A Rodríguez-Manzo
- Institut de Physique et Chimie des Matériaux, UMR 7504 CNRS, Université de Strasbourg, France
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18
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Demortière A, Losno R, Petit C, Quisefit JP. Composition study of CoPt bimetallic nanocrystals of 2 nm. Anal Bioanal Chem 2010; 397:1485-91. [DOI: 10.1007/s00216-010-3689-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2009] [Revised: 03/17/2010] [Accepted: 03/17/2010] [Indexed: 11/30/2022]
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19
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Wang JX, Inada H, Wu L, Zhu Y, Choi Y, Liu P, Zhou WP, Adzic RR. Oxygen Reduction on Well-Defined Core−Shell Nanocatalysts: Particle Size, Facet, and Pt Shell Thickness Effects. J Am Chem Soc 2009; 131:17298-302. [DOI: 10.1021/ja9067645] [Citation(s) in RCA: 630] [Impact Index Per Article: 42.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jia X. Wang
- Brookhaven National Laboratory, Upton, New York 11973, and Hitachi High Technologies America, Inc., Pleasanton, California 94588
| | - Hiromi Inada
- Brookhaven National Laboratory, Upton, New York 11973, and Hitachi High Technologies America, Inc., Pleasanton, California 94588
| | - Lijun Wu
- Brookhaven National Laboratory, Upton, New York 11973, and Hitachi High Technologies America, Inc., Pleasanton, California 94588
| | - Yimei Zhu
- Brookhaven National Laboratory, Upton, New York 11973, and Hitachi High Technologies America, Inc., Pleasanton, California 94588
| | - YongMan Choi
- Brookhaven National Laboratory, Upton, New York 11973, and Hitachi High Technologies America, Inc., Pleasanton, California 94588
| | - Ping Liu
- Brookhaven National Laboratory, Upton, New York 11973, and Hitachi High Technologies America, Inc., Pleasanton, California 94588
| | - Wei-Ping Zhou
- Brookhaven National Laboratory, Upton, New York 11973, and Hitachi High Technologies America, Inc., Pleasanton, California 94588
| | - Radoslav R. Adzic
- Brookhaven National Laboratory, Upton, New York 11973, and Hitachi High Technologies America, Inc., Pleasanton, California 94588
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20
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An effective sonication-assisted reduction approach to synthesize highly dispersed Co nanoparticles on SiO2. Chem Phys Lett 2009. [DOI: 10.1016/j.cplett.2009.02.041] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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21
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Demortière A, Launois P, Goubet N, Albouy PA, Petit C. Shape-Controlled Platinum Nanocubes and Their Assembly into Two-Dimensional and Three-Dimensional Superlattices. J Phys Chem B 2008; 112:14583-92. [DOI: 10.1021/jp802081n] [Citation(s) in RCA: 118] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- A. Demortière
- Laboratoire des Matériaux Mésoscopiques et Nanométriques, UMR 7070, Université Pierre et Marie Curie-Paris 6, 4 place Jussieu 75252 Paris Cedex 05, France, and Laboratoire de Physique des Solides, UMR CNRS 8502, bât. 510, Université Paris Sud, 91405 Orsay Cedex, France
| | - P. Launois
- Laboratoire des Matériaux Mésoscopiques et Nanométriques, UMR 7070, Université Pierre et Marie Curie-Paris 6, 4 place Jussieu 75252 Paris Cedex 05, France, and Laboratoire de Physique des Solides, UMR CNRS 8502, bât. 510, Université Paris Sud, 91405 Orsay Cedex, France
| | - N. Goubet
- Laboratoire des Matériaux Mésoscopiques et Nanométriques, UMR 7070, Université Pierre et Marie Curie-Paris 6, 4 place Jussieu 75252 Paris Cedex 05, France, and Laboratoire de Physique des Solides, UMR CNRS 8502, bât. 510, Université Paris Sud, 91405 Orsay Cedex, France
| | - P.-A. Albouy
- Laboratoire des Matériaux Mésoscopiques et Nanométriques, UMR 7070, Université Pierre et Marie Curie-Paris 6, 4 place Jussieu 75252 Paris Cedex 05, France, and Laboratoire de Physique des Solides, UMR CNRS 8502, bât. 510, Université Paris Sud, 91405 Orsay Cedex, France
| | - C. Petit
- Laboratoire des Matériaux Mésoscopiques et Nanométriques, UMR 7070, Université Pierre et Marie Curie-Paris 6, 4 place Jussieu 75252 Paris Cedex 05, France, and Laboratoire de Physique des Solides, UMR CNRS 8502, bât. 510, Université Paris Sud, 91405 Orsay Cedex, France
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