1
|
Shi M, Wada H. Optimized Ammonia-Sensing Electrode with CeO 2/rGO Nano-Composite Coating Synthesized by Focused Laser Ablation in Liquid. NANOMATERIALS (BASEL, SWITZERLAND) 2024; 14:1238. [PMID: 39120343 PMCID: PMC11314089 DOI: 10.3390/nano14151238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2024] [Revised: 07/19/2024] [Accepted: 07/20/2024] [Indexed: 08/10/2024]
Abstract
This study investigated the synthesis of cerium oxide (CeO2) nanoparticles (NPs) and composites with reduced graphene oxide (rGO) for the enhanced electrochemical sensing of ammonia. CeO2 NPs were prepared by the focused laser ablation in liquid (LAL) method, which enabled the production of high-purity, spherical nanoparticles with a uniform dispersion and sizes under 50 nm in a short time. The effects of varying irradiation fluence and time on the nanoparticle size, production yield, and dispersion were systematically studied. The synthesized CeO2 NPs were doped with rGO to form CeO2/rGO composites, which were drop casted to modify the glassy carbon electrodes (GCE). The CeO2/rGO-GCE electrodes exhibited superior electrochemical properties compared with single-component electrodes, which demonstrated the significant potential for ammonia detection, especially at a 4 J/cm2 fluence. The CeO2/rGO composites showed uniformly dispersed CeO2 NPs between the rGO sheets, which enhanced the conductivity, as confirmed by SEM, EDS mapping, and XRD analysis. Cyclic voltammetry data demonstrated superior electrochemical activity of the CeO2/rGO composite electrodes, with the 2rGO/1CeO2 ratio showing the highest current response and sensitivity. The CV response to varying ammonia concentrations exhibited a linear relationship, indicating the electrode's capability for accurate quantification. These findings highlight the effectiveness of focused laser ablation in enhancing nanoparticle synthesis and the promising synergistic effects of CeO2 and rGO in developing high-performance electrochemical sensors.
Collapse
Affiliation(s)
| | - Hiroyuki Wada
- School of Materials and Chemical Technology, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama 226-8502, Japan;
| |
Collapse
|
2
|
Srb M, Milasheuskaya Y, Jambor R, Kopecká K, Knotek P. Low‐Temperature Sn
0
Nanoparticles Synthesis by Means of Tin(II) N,N‐Complexes Reduction. ChemistrySelect 2021. [DOI: 10.1002/slct.202100618] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Michael Srb
- Department of General and Inorganic Chemistry Faculty of Chemical Technology University of Pardubice Studentská 573, 532 10 Pardubice Czech Republic
| | - Yaraslava Milasheuskaya
- Department of General and Inorganic Chemistry Faculty of Chemical Technology University of Pardubice Studentská 573, 532 10 Pardubice Czech Republic
| | - Roman Jambor
- Department of General and Inorganic Chemistry Faculty of Chemical Technology University of Pardubice Studentská 573, 532 10 Pardubice Czech Republic
| | - Kateřina Kopecká
- Department of General and Inorganic Chemistry Faculty of Chemical Technology University of Pardubice Studentská 573, 532 10 Pardubice Czech Republic
- Center of nano structured polymers SYNPO, a.s. S. K. Neumanna 1316, 532 07 Pardubice Czech Republic
| | - Petr Knotek
- Department of General and Inorganic Chemistry Faculty of Chemical Technology University of Pardubice Studentská 573, 532 10 Pardubice Czech Republic
| |
Collapse
|
3
|
Długosz O, Banach M. Continuous synthesis of metal and metal oxide nanoparticles in microwave reactor. Colloids Surf A Physicochem Eng Asp 2020. [DOI: 10.1016/j.colsurfa.2020.125453] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
|
4
|
Rabiee H, Zhang X, Ge L, Hu S, Li M, Smart S, Zhu Z, Yuan Z. Tuning the Product Selectivity of the Cu Hollow Fiber Gas Diffusion Electrode for Efficient CO 2 Reduction to Formate by Controlled Surface Sn Electrodeposition. ACS APPLIED MATERIALS & INTERFACES 2020; 12:21670-21681. [PMID: 32309923 DOI: 10.1021/acsami.0c03681] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The efficient CO2 electrochemical reduction reaction (CO2RR) relies not only on the development of selective/active catalysts but also on the advanced electrode configuration to solve the critical issue of poor CO2 mass transport and derived sluggish cathodic reaction kinetics. In this work, to achieve a favorable reaction rate and product selectivity, we designed and synthesized an asymmetric porous Cu hollow fiber gas diffusion electrode (HFGDE) with controlled Sn surface electrodeposition. The HFGDE derived from the optimal Sn electrodeposition condition exhibited a formate Faradaic efficiency (FE) of 78% and a current density of 88 mA cm-2 at -1.2 V versus reversible hydrogen electrode, which are more than 2 times higher than those from the pristine Cu HFGDE. The achieved performance outperformed most of the other Sn-based GDEs, indicating the creation of sufficient contact among CO2, electrolyte, and electrode catalyst through the design of the hollow fiber pore structure and catalytic active sites. The enhancement of formate production selectivity and the suppression of the hydrogen by-product were attributed to the optimized ratio of SnOx species on the electrode surface. The best performance was seen in the HFGDE with the highest Sn2+/Sn4+ (120 s deposition), likely due to the modulating effect of the Cu substrate via electron donation with Sn species. The selectivity control strategy developed in the asymmetric HFGDE provides an efficient and facile method to stimulate selective electrochemical reactions in which the gas-phase reactant with low solubility is involved.
Collapse
Affiliation(s)
- Hesamoddin Rabiee
- Advanced Water Management Centre, Faculty of Engineering, Architecture and Information Technology, The University of Queensland, St. Lucia, Queensland 4072, Australia
| | - Xueqin Zhang
- Advanced Water Management Centre, Faculty of Engineering, Architecture and Information Technology, The University of Queensland, St. Lucia, Queensland 4072, Australia
| | - Lei Ge
- Centre for Future Materials, University of Southern Queensland, Springfield Central, Queensland 4300, Australia
- School of Chemical Engineering, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - Shihu Hu
- Advanced Water Management Centre, Faculty of Engineering, Architecture and Information Technology, The University of Queensland, St. Lucia, Queensland 4072, Australia
| | - Mengran Li
- School of Chemical Engineering, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - Simon Smart
- School of Chemical Engineering, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - Zhonghua Zhu
- School of Chemical Engineering, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - Zhiguo Yuan
- Advanced Water Management Centre, Faculty of Engineering, Architecture and Information Technology, The University of Queensland, St. Lucia, Queensland 4072, Australia
| |
Collapse
|
5
|
Electrochemical growth of two-dimensional tin nano-platelet as high-performance anode material in lithium-ion batteries. J IND ENG CHEM 2020. [DOI: 10.1016/j.jiec.2019.12.027] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
|
6
|
|
7
|
Saw MJ, Nguyen MT, Zhu S, Wang Y, Yonezawa T. Synthesis of Sn/Ag-Sn nanoparticles via room temperature galvanic reaction and diffusion. RSC Adv 2019; 9:21786-21792. [PMID: 35518847 PMCID: PMC9066527 DOI: 10.1039/c9ra02987g] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2019] [Accepted: 06/30/2019] [Indexed: 11/21/2022] Open
Abstract
Tin (Sn) has a low melting temperature, i.e., 231.9 °C for the bulk, and the capability to form compounds with many metals. The galvanic reaction between Sn nanoparticles (NPs) as the core and silver nitrate at room temperature under argon gas in an organic solvent without any reducing power, was employed for the first time to coat an Ag-Sn intermetallic shell, i.e., Ag3Sn and/or Ag4Sn, on Sn NPs. For spherical Sn NPs, the NPs retained a spherical shape after coating. Uniform and Janus structures consisting of a β-Sn core with Ag-Sn shell were observed in the resulting NPs and their population related to the input molar ratios of the metal precursors. The observation of the intermetallic shell is general for both spherical and rod-shape Sn NPs. The formation of the intermetallic shell indicated that two reactions occurred sequentially, first reduction of Ag ions to Ag atoms by the Sn core, followed by interdiffusion of Ag and Sn to form the Ag-Sn intermetallic shell.
Collapse
Affiliation(s)
- Min Jia Saw
- Division of Materials Science and Engineering, Faculty of Engineering, Hokkaido University Kita 13 Nishi 8, Kita-ku Sapporo 060-8628 Japan
| | - Mai Thanh Nguyen
- Division of Materials Science and Engineering, Faculty of Engineering, Hokkaido University Kita 13 Nishi 8, Kita-ku Sapporo 060-8628 Japan
| | - Shilei Zhu
- Division of Materials Science and Engineering, Faculty of Engineering, Hokkaido University Kita 13 Nishi 8, Kita-ku Sapporo 060-8628 Japan
| | - Yongming Wang
- Division of Materials Science and Engineering, Faculty of Engineering, Hokkaido University Kita 13 Nishi 8, Kita-ku Sapporo 060-8628 Japan
| | - Tetsu Yonezawa
- Division of Materials Science and Engineering, Faculty of Engineering, Hokkaido University Kita 13 Nishi 8, Kita-ku Sapporo 060-8628 Japan
| |
Collapse
|
8
|
Zhao X, Yang Q, Quan Z. Tin-based nanomaterials: colloidal synthesis and battery applications. Chem Commun (Camb) 2019; 55:8683-8694. [PMID: 31215554 DOI: 10.1039/c9cc02811k] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Tin-based nanomaterials have been of increasing interest in many fields such as alkali-ion batteries, gas sensing, thermoelectric devices, and solar cells. Finely controllable structures and compositions of tin-based nanomaterials are crucial to improve their performances. The solution-based colloidal synthesis of these compounds offers a promising path toward controlling their structures and components. This feature article summarizes the progress in recent studies on the colloidal synthesis of tin-based nanomaterials (such as metallic tin, alloys, oxides, chalcogenides, and phosphides) and their applications in alkali-ion batteries including our own recent contributions to this subject. The challenges and future outlook of the controllable synthesis and practical development of tin-based anode materials are also addressed.
Collapse
Affiliation(s)
- Xixia Zhao
- Department of Chemistry, Southern University of Science and Technology (SUSTech), Shenzhen, Guangdong 518055, P. R. China.
| | | | | |
Collapse
|
9
|
Huang S, Wang C, Sun H, Wang X, Su Y. Steering Charge Kinetics of Tin Niobate Photocatalysts: Key Roles of Phase Structure and Electronic Structure. NANOSCALE RESEARCH LETTERS 2018; 13:161. [PMID: 29796920 PMCID: PMC5966348 DOI: 10.1186/s11671-018-2578-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/15/2018] [Accepted: 05/16/2018] [Indexed: 06/08/2023]
Abstract
Tin niobate photocatalysts with the phase structures of froodite (SnNb2O6) and pyrochlore (Sn2Nb2O7) were obtained by a facile solvothermal method in order to explore the impact of phase structure and electronic structure on the charge kinetics and photocatalytic performance. By employing tin niobate as a model compound, the effects of phase structure over electronic structure, photocatalytic activity toward methyl orange solution and hydrogen evolution were systematically investigated. It is found that the variation of phase structure from SnNb2O6 to Sn2Nb2O7 accompanied with modulation of particle size and band edge potentials that has great consequences on photocatalytic performance. In combination with the electrochemical impedance spectroscopy (EIS), transient photocurrent responses, transient absorption spectroscopy (TAS), and the analysis of the charge-carrier dynamics suggested that variation of electronic structure has great impacts on the charge separation and transfer rate of tin niobate photocatalysts and the subsequent photocatalytic performance. Moreover, the results of the X-ray photoelectron spectroscopy (XPS) indicated that the existent of Sn4+ species in Sn2Nb2O7 could result in a decrease in photocatalytic activity. Photocatalytic test demonstrated that the SnNb2O6 (froodite) catalyst possesses a higher photocatalytic activity toward MO degradation and H2 evolution compared with the sample of Sn2Nb2O7 (pyrochlore). On the basis of spin resonance measurement and trapping experiment, it is expected that photogenerated holes, O2-•, and OH• active species dominate the photodegradation of methyl orange.
Collapse
Affiliation(s)
- Shushu Huang
- College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot, 010021 Inner Mongolia People’s Republic of China
| | - Chunyan Wang
- College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot, 010021 Inner Mongolia People’s Republic of China
| | - Hao Sun
- College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot, 010021 Inner Mongolia People’s Republic of China
| | - Xiaojing Wang
- College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot, 010021 Inner Mongolia People’s Republic of China
| | - Yiguo Su
- College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot, 010021 Inner Mongolia People’s Republic of China
| |
Collapse
|
10
|
Improving the visible-light photocatalytic activity of SnOx·SiO2 glass systems by introducing SnOx nanoparticles. J Radioanal Nucl Chem 2018. [DOI: 10.1007/s10967-018-5794-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
|
11
|
Aliev AE, Bartók AP, Yates JR. Tin chemical shift anisotropy in tin dioxide: On ambiguity of CSA asymmetry derived from MAS spectra. SOLID STATE NUCLEAR MAGNETIC RESONANCE 2018; 89:1-10. [PMID: 29202302 DOI: 10.1016/j.ssnmr.2017.11.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2017] [Revised: 11/22/2017] [Accepted: 11/23/2017] [Indexed: 06/07/2023]
Abstract
Two different axial symmetries of the 119Sn chemical shift anisotropy (CSA) in tin dioxide with the asymmetry parameter (η) of 0 and 0.27 were reported previously based on the analysis of MAS NMR spectra. By analyzing the static powder pattern, we show that the 119Sn CSA is axially symmetric. A nearly axial symmetry and the principal axis system of the 119Sn chemical shift tensor in SnO2 were deduced from periodic scalar-relativistic density functional theory (DFT) calculations of NMR parameters. The implications of fast small-angle motions on CSA parameters were also considered, which could potentially lead to a CSA symmetry in disagreement with a crystal symmetry. Our analysis of experimental spectra using spectral simulations and iterative fittings showed that MAS spectra recorded at relatively high frequencies do not show sufficiently distinct features in order to distinguish CSAs with η ≈ 0 and η ≈ 0.4. The example of SnO2 shows that both the MAS lineshape and spinning sideband analyses may overestimate the η value by as much as ∼0.3 and ∼0.4, respectively. The results confirm that a static powder pattern must be analysed in order to improve the accuracy of the CSA asymmetry measurements. The measurements on SnO2 nanoparticles showed that the asymmetry parameter of the 119Sn CSA increases for nm-sized particles with a larger surface area compared to μm-sized particles. The increase of the η value for tin atoms near the surface in SnO2 was also confirmed by DFT calculations.
Collapse
Affiliation(s)
- Abil E Aliev
- Department of Chemistry, University College London, 20 Gordon Street, London, WC1H 0AJ, UK.
| | - Albert P Bartók
- Scientific Computing Department, Rutherford Appleton Laboratory, Harwell Campus, Didcot, OX11 0QX, UK
| | - Jonathan R Yates
- Department of Materials, University of Oxford, Parks Road, Oxford, OX1 3PH, UK
| |
Collapse
|
12
|
Soulmi N, Dambournet D, Rizzi C, Sirieix-Plénet J, Duttine M, Wattiaux A, Swiatowska J, Borkiewicz OJ, Groult H, Gaillon L. Structural and Morphological Description of Sn/SnO x Core-Shell Nanoparticles Synthesized and Isolated from Ionic Liquid. Inorg Chem 2017; 56:10099-10106. [PMID: 28796492 DOI: 10.1021/acs.inorgchem.7b01850] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The potential application of high capacity Sn-based electrode materials for energy storage, particularly in rechargeable batteries, has led to extensive research activities. In this scope, the development of an innovative synthesis route allowing to downsize particles to the nanoscale is of particular interest owing to the ability of such nanomaterial to better accommodate volume changes upon electrochemical reactions. Here, we report on the use of room temperature ionic liquid (i.e., [EMIm+][TFSI-]) as solvent, template, and stabilizer for Sn-based nanoparticles. In such a media, we observed, using Cryo-TEM, that pure Sn nanoparticles can be stabilized. Further washing steps are, however, mandatory to remove residual ionic liquid. It is shown that the washing steps are accompanied by the partial oxidation of the surface, leading to a core-shell structured Sn/SnOx composite. To understand the structural features of such a complex architecture, HRTEM, Mössbauer spectroscopy, and the pair distribution function were employed to reveal a crystallized β-Sn core and a SnO and SnO2 amorphous shell. The proportion of oxidized phases increases with the final washing step with water, which appeared necessary to remove not only salts but also the final surface impurities made of the cationic moieties of the ionic liquid. This work highlights the strong oxidation reactivity of Sn-based nanoparticles, which needs to be taken into account when evaluating their electrochemical properties.
Collapse
Affiliation(s)
- Nadia Soulmi
- Sorbonne Universités, UPMC Univ Paris 06, CNRS, Laboratoire PHENIX , F-75005 Paris, France
| | - Damien Dambournet
- Sorbonne Universités, UPMC Univ Paris 06, CNRS, Laboratoire PHENIX , F-75005 Paris, France
| | - Cécile Rizzi
- Sorbonne Universités, UPMC Univ Paris 06, CNRS, Laboratoire PHENIX , F-75005 Paris, France
| | | | - Mathieu Duttine
- CNRS, Université de Bordeaux, ICMCB, UPR 9048 , F-33600 Pessac, France
| | - Alain Wattiaux
- CNRS, Université de Bordeaux, ICMCB, UPR 9048 , F-33600 Pessac, France
| | - Jolanta Swiatowska
- PSL Research University, Chimie ParisTech - CNRS , Institut de Recherche de Chimie Paris, F-75005 Paris, France
| | - Olaf J Borkiewicz
- X-ray Science Division, Advanced Photon Source, Argonne National Laboratory , Argonne, Illinois 60439, United States
| | - Henri Groult
- Sorbonne Universités, UPMC Univ Paris 06, CNRS, Laboratoire PHENIX , F-75005 Paris, France
| | - Laurent Gaillon
- Sorbonne Universités, UPMC Univ Paris 06, CNRS, Laboratoire PHENIX , F-75005 Paris, France
| |
Collapse
|
13
|
The relationship between SnII fraction and visible light activated photocatalytic activity of SnOx·SiO2 glass studied by Mössbauer spectroscopy. J Radioanal Nucl Chem 2017. [DOI: 10.1007/s10967-016-5159-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
14
|
Cui C, Han J, Zhu X, Liu X, Wang H, Mei D, Ge Q. Promotional effect of surface hydroxyls on electrochemical reduction of CO2 over SnO /Sn electrode. J Catal 2016. [DOI: 10.1016/j.jcat.2015.12.001] [Citation(s) in RCA: 89] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
15
|
Jońca J, Ryzhikov A, Kahn ML, Fajerwerg K, Chapelle A, Menini P, Fau P. SnO2
“Russian Doll” Octahedra Prepared by Metalorganic Synthesis: A New Structure for Sub-ppm CO Detection. Chemistry 2016; 22:10127-35. [DOI: 10.1002/chem.201600650] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2016] [Indexed: 11/06/2022]
Affiliation(s)
- Justyna Jońca
- Laboratoire de Chimie de Coordination (LCC); CNRS; 205 route de Narbonne 31077 Toulouse Cedex 4 France
| | - Andrey Ryzhikov
- Laboratoire de Chimie de Coordination (LCC); CNRS; 205 route de Narbonne 31077 Toulouse Cedex 4 France
| | - Myrtil L. Kahn
- Laboratoire de Chimie de Coordination (LCC); CNRS; 205 route de Narbonne 31077 Toulouse Cedex 4 France
| | - Katia Fajerwerg
- Laboratoire de Chimie de Coordination (LCC); CNRS; 205 route de Narbonne 31077 Toulouse Cedex 4 France
- Université Fédérale de Toulouse; UT III Paul Sabatier; 118 route de Narbonne 31062 Toulouse Cedex 9 France
| | - Audrey Chapelle
- Laboratoire d'Analyse et d'Architecture des Systèmes (LAAS); 7 Avenue du Colonel Roche 31400 Toulouse France
| | - Philippe Menini
- Université Fédérale de Toulouse; UT III Paul Sabatier; 118 route de Narbonne 31062 Toulouse Cedex 9 France
- Laboratoire d'Analyse et d'Architecture des Systèmes (LAAS); 7 Avenue du Colonel Roche 31400 Toulouse France
| | - Pierre Fau
- Laboratoire de Chimie de Coordination (LCC); CNRS; 205 route de Narbonne 31077 Toulouse Cedex 4 France
- Université Fédérale de Toulouse; UT III Paul Sabatier; 118 route de Narbonne 31062 Toulouse Cedex 9 France
| |
Collapse
|
16
|
Comparison of electrocatalytic reduction of CO2 to HCOOH with different tin oxides on carbon nanotubes. Electrochem commun 2016. [DOI: 10.1016/j.elecom.2016.01.019] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
|
17
|
Dutta A, Kuzume A, Rahaman M, Vesztergom S, Broekmann P. Monitoring the Chemical State of Catalysts for CO2 Electroreduction: An In Operando Study. ACS Catal 2015. [DOI: 10.1021/acscatal.5b02322] [Citation(s) in RCA: 196] [Impact Index Per Article: 21.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Abhijit Dutta
- Department
of Chemistry and Biochemistry, University of Bern, Freiestrasse
3, Bern 3012, Switzerland
| | - Akiyoshi Kuzume
- Department
of Chemistry and Biochemistry, University of Bern, Freiestrasse
3, Bern 3012, Switzerland
| | - Motiar Rahaman
- Department
of Chemistry and Biochemistry, University of Bern, Freiestrasse
3, Bern 3012, Switzerland
| | - Soma Vesztergom
- Department
of Chemistry and Biochemistry, University of Bern, Freiestrasse
3, Bern 3012, Switzerland
- Department
of Physical Chemistry, Eötvös Loránd University, Pázmány Péter sétány 1/A, Budapest 1117, Hungary
| | - Peter Broekmann
- Department
of Chemistry and Biochemistry, University of Bern, Freiestrasse
3, Bern 3012, Switzerland
| |
Collapse
|
18
|
Moon SA, Salunke BK, Alkotaini B, Sathiyamoorthi E, Kim BS. Biological synthesis of manganese dioxide nanoparticles by Kalopanax pictus plant extract. IET Nanobiotechnol 2015. [PMID: 26224352 DOI: 10.1049/iet-nbt.2014.0051] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
Manganese dioxide (MnO₂) nanoparticles were synthesised by the reduction of potassium permanganate (KMnO₄) using Kalopanax pictus leaf extract at room temperature. A transparent dark-brown colour appeared after the addition of K. pictus leaf extract to the solution of permanganate. The time course of the reduction of KMnO₄and synthesis of MnO₂ nanoparticles was monitored by means of UV-Vis spectra. The reduction of KMnO₄occurred after addition of plant extract with disappearance of KMnO₄specific peaks and emergence of peak specific for MnO₂nanoparticles. MnO₂nanoparticles showed absorption maxima at 404 nm. The electron dispersive X-ray spectroscopy analyses confirmed the presence of Mn and O in the sample. X-ray photoelectron spectroscopy revealed characteristic binding energies for MnO₂nanoparticles. Transmission electron microscopy micrographs revealed presence of uniformly dispersed spherical shaped particles with average size of 19.2 nm. The selected area electron diffraction patterns revealed the crystalline nature of MnO₂nanoparticles. Fourier transform-infrared spectroscopy spectra of pure MnO₂show the occurrence of O-Mn-O vibrational mode at around 518 cm⁻¹. The phyto-synthesised MnO₂nanoparticles showed degradation ability of dyes (congo red and safranin O) similar to chemically synthesised MnO₂nanoparticles. This study shows simple and eco-friendly synthesis of MnO₂nanoparticles by plant extract and their utilisation for dye degradation for the first time.
Collapse
Affiliation(s)
- Sun A Moon
- Department of Chemical Engineering, Chungbuk National University, Cheongju, Chungbuk 361-763, Republic of Korea
| | - Bipinchandra K Salunke
- Department of Chemical Engineering, Chungbuk National University, Cheongju, Chungbuk 361-763, Republic of Korea
| | - Bassam Alkotaini
- Department of Chemical Engineering, Chungbuk National University, Cheongju, Chungbuk 361-763, Republic of Korea
| | - Ezhaveni Sathiyamoorthi
- Department of Chemical Engineering, Chungbuk National University, Cheongju, Chungbuk 361-763, Republic of Korea
| | - Beom Soo Kim
- Department of Chemical Engineering, Chungbuk National University, Cheongju, Chungbuk 361-763, Republic of Korea.
| |
Collapse
|
19
|
Lang J, Li C, Wang S, Lv J, Su Y, Wang X, Li G. Coupled Heterojunction Sn₂Ta₂O₇@SnO₂: Cooperative Promotion of Effective Electron-Hole Separation and Superior Visible-light Absorption. ACS APPLIED MATERIALS & INTERFACES 2015; 7:13905-13914. [PMID: 26072681 DOI: 10.1021/acsami.5b02271] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
In this work, a novel heterostructure integrated by two wide-band gap semiconductors, SnO2 and Sn2Ta2O7, is successfully prepared via a hydrothermal approach. Hollow Sn2Ta2O7 spheres were first formed, and small SnO2 particles were then well-dispersed onto the outside surface of the spheres, forming a p-n heterostructure. This heterostructure exhibits a higher potential edge that yielded enhanced photoredox ability. Further, the heterostructure is of Z-type with a consistent internal electric field direction, which effectively separates the photogenerated electron-hole pairs. Although both component semiconductors do not absorb visible light, the resulted p-n heterostructure is surprisingly observed to show an outstanding photocatalytic performance under visible light illumination. Such a visible light response is concluded to be the consequence of the impurity band formed by Sn(2+) doped in SnO2 and Sn(4+) in Sn2Ta2O7 via in situ redox. The existence of coupled Sn(2+) and Sn(4+) ions in p-n heterostructure is responsible for the absence of defects and the regenerated catalytic activities. The findings reported here may provide an approach to fabricate the new types of photocatalysts with a synergetic promotion for visible light absorption and sustained photocatalytic activities by coupling different wide-band semiconductors.
Collapse
Affiliation(s)
- Junyu Lang
- †School of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot City 010021, People's Republic of China
| | - Congyan Li
- †School of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot City 010021, People's Republic of China
| | - Shuwei Wang
- †School of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot City 010021, People's Republic of China
| | - Juanjuan Lv
- †School of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot City 010021, People's Republic of China
| | - Yiguo Su
- †School of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot City 010021, People's Republic of China
| | - Xiaojing Wang
- †School of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot City 010021, People's Republic of China
| | - Guangshe Li
- ‡National Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Chemistry College, Jilin University, Changchun 130023, People's Republic of China
| |
Collapse
|
20
|
|
21
|
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]
|
22
|
Chen Z, Pan D, Li Z, Jiao Z, Wu M, Shek CH, Wu CML, Lai JKL. Recent Advances in Tin Dioxide Materials: Some Developments in Thin Films, Nanowires, and Nanorods. Chem Rev 2014; 114:7442-86. [DOI: 10.1021/cr4007335] [Citation(s) in RCA: 129] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Zhiwen Chen
- Department
of Physics and Materials Science, City University of Hong Kong, Tat Chee
Avenue, Kowloon Tong, Hong Kong
| | | | | | | | | | - Chan-Hung Shek
- Department
of Physics and Materials Science, City University of Hong Kong, Tat Chee
Avenue, Kowloon Tong, Hong Kong
| | - C. M. Lawrence Wu
- Department
of Physics and Materials Science, City University of Hong Kong, Tat Chee
Avenue, Kowloon Tong, Hong Kong
| | - Joseph K. L. Lai
- Department
of Physics and Materials Science, City University of Hong Kong, Tat Chee
Avenue, Kowloon Tong, Hong Kong
| |
Collapse
|
23
|
Dadkhah M, Salavati-Niasari M. Controlled synthesis of tin dioxide nanostructures via two simple methods and the influence on dye sensitized solar cell. Electrochim Acta 2014. [DOI: 10.1016/j.electacta.2014.02.078] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
24
|
Protesescu L, Rossini AJ, Kriegner D, Valla M, de Kergommeaux A, Walter M, Kravchyk KV, Nachtegaal M, Stangl J, Malaman B, Reiss P, Lesage A, Emsley L, Copéret C, Kovalenko MV. Unraveling the core-shell structure of ligand-capped Sn/SnOx nanoparticles by surface-enhanced nuclear magnetic resonance, Mössbauer, and X-ray absorption spectroscopies. ACS NANO 2014; 8:2639-48. [PMID: 24494636 DOI: 10.1021/nn406344n] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
A particularly difficult challenge in the chemistry of nanomaterials is the detailed structural and chemical analysis of multicomponent nano-objects. This is especially true for the determination of spatially resolved information. In this study, we demonstrate that dynamic nuclear polarization surface-enhanced solid-state NMR spectroscopy (DNP-SENS), which provides selective and enhanced NMR signal collection from the (near) surface regions of a sample, can be used to resolve the core-shell structure of a nanoparticle. Li-ion anode materials, monodisperse 10-20 nm large tin nanoparticles covered with a ∼3 nm thick layer of native oxides, were used in this case study. DNP-SENS selectively enhanced the weak 119Sn NMR signal of the amorphous surface SnO2 layer. Mössbauer and X-ray absorption spectroscopies identified a subsurface SnO phase and quantified the atomic fractions of both oxides. Finally, temperature-dependent X-ray diffraction measurements were used to probe the metallic β-Sn core and indicated that even after 8 months of storage at 255 K there are no signs of conversion of the metallic β-Sn core into a brittle semiconducting α-phase, a phase transition which normally occurs in bulk tin at 286 K (13 °C). Taken together, these results indicate that Sn/SnOx nanoparticles have core/shell1/shell2 structure of Sn/SnO/SnO2 phases. The study suggests that DNP-SENS experiments can be carried on many types of uniform colloidal nanomaterials containing NMR-active nuclei, in the presence of either hydrophilic (ion-capped surfaces) or hydrophobic (capping ligands with long hydrocarbon chains) surface functionalities.
Collapse
Affiliation(s)
- Loredana Protesescu
- Institute of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich CH-8093, Switzerland
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
25
|
Mosby BM, Goloby M, Díaz A, Bakhmutov V, Clearfield A. Designable architectures on nanoparticle surfaces: zirconium phosphate nanoplatelets as a platform for tetravalent metal and phosphonic acid assemblies. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2014; 30:2513-2521. [PMID: 24575837 DOI: 10.1021/la404839n] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Surface-functionalized zirconium phosphate (ZrP) nanoparticles were synthesized using a combination of ion exchange and self-assembly techniques. The surface of ZrP was used as a platform to deposit tetravalent metal ions by direct ion exchange with the protons of the surface phosphate groups. Subsequently, phosphonic acids were attached to the metal ion layer, effectively functionalizing the ZrP nanoparticles. Use of axially oriented bisphosphonic acids led to the ability to build layer-by-layer assemblies from the nanoparticle surface. Varying the metal ion and ligand used allowed designable architectures to be synthesized on the nanoparticle surface. X-ray powder diffraction, XPS, electron microprobe, solid-state NMR, FTIR, and TGA were used to characterize the synthesized materials.
Collapse
|
26
|
Kim A, Shin D, Kim M, Yoon C, Song H, Park KH. Facile Synthesis of Multipodal MnO Nanocrystals and Their Catalytic Performance. Eur J Inorg Chem 2014. [DOI: 10.1002/ejic.201400070] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Aram Kim
- Department of Chemistry, Pusan National University, Busan 609‐735, Korea, http://www.chemistry.or.kr
| | - Dongwoo Shin
- Department of Chemistry, Korea Advanced Institute of Science and Technology, 305‐701 Daejeon, Korea, http://small.kaist.ac.kr/
| | - Mijong Kim
- Department of Chemistry, Korea Advanced Institute of Science and Technology, 305‐701 Daejeon, Korea, http://small.kaist.ac.kr/
| | - Chohye Yoon
- Department of Chemistry, Pusan National University, Busan 609‐735, Korea, http://www.chemistry.or.kr
| | - Hyunjoon Song
- Department of Chemistry, Korea Advanced Institute of Science and Technology, 305‐701 Daejeon, Korea, http://small.kaist.ac.kr/
| | - Kang Hyun Park
- Department of Chemistry, Pusan National University, Busan 609‐735, Korea, http://www.chemistry.or.kr
| |
Collapse
|
27
|
Lidor-Shalev O, Zitoun D. Reaction mechanism of “amine–borane route” towards Sn, Ni, Pd, Pt nanoparticles. RSC Adv 2014. [DOI: 10.1039/c4ra11483c] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Sn NPs with well-defined sizes in the range 20–100 nm have been synthesized using a chemical reduction route of metal acetylacetonate by a dimethylamine–borane Lewis complex.
Collapse
Affiliation(s)
- Ortal Lidor-Shalev
- Department of Chemistry
- Bar Ilan Institute of Nanotechnology and Advanced Materials (BINA)
- Bar Ilan University
- Ramat Gan, Israel
| | - David Zitoun
- Department of Chemistry
- Bar Ilan Institute of Nanotechnology and Advanced Materials (BINA)
- Bar Ilan University
- Ramat Gan, Israel
| |
Collapse
|
28
|
Dai Z, Jia L, Duan G, Li Y, Zhang H, Wang J, Hu J, Cai W. Crack-Free Periodic Porous Thin Films Assisted by Plasma Irradiation at Low Temperature and Their Enhanced Gas-Sensing Performance. Chemistry 2013; 19:13387-95. [DOI: 10.1002/chem.201301137] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2013] [Revised: 07/03/2013] [Indexed: 11/10/2022]
|
29
|
Hwang J, Woo SH, Shim J, Jo C, Lee KT, Lee J. One-pot synthesis of tin-embedded carbon/silica nanocomposites for anode materials in lithium-ion batteries. ACS NANO 2013; 7:1036-1044. [PMID: 23316943 DOI: 10.1021/nn303570s] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
We report a facile "one-pot" method for the synthesis of Sn-embedded carbon-silica (CS) mesostructured (nanostructured) composites through the selective interaction of resol (carbon precursor), tetraethylorthosilicate (TEOS), and tributylphenyltin (Sn precursor) with an amphiphilic diblock copolymer, poly(ethylene oxide-b-styrene), PEO-b-PS. A unique morphology transition from Sn nanowires to spherical Sn nanoparticles embedded in CS framework has been obtained. Metallic Sn species are homogeneously embedded in a rigid CS framework and are effectively confined within the nanostructures. The resulting composites are used as anode materials for lithium-ion batteries and exhibit high specific capacities (600 mA h g⁻¹ at a current density of 45 mA g⁻¹, and 440 mA h g⁻¹ at a current density of 300 mA g⁻¹) and an excellent cyclability of over 100 cycles with high Coulombic efficiency. Most of all, the novel method developed in this work for synthesizing functional hybrid materials can be extended to the preparation of various functional nanocomposites owing to its versatility and facileness.
Collapse
Affiliation(s)
- Jongkook Hwang
- Department of Chemical Engineering, Pohang University of Science and Technology-POSTECH, Pohang, Kyungbuk 790-784, Korea
| | | | | | | | | | | |
Collapse
|
30
|
Amiens C, Chaudret B, Ciuculescu-Pradines D, Collière V, Fajerwerg K, Fau P, Kahn M, Maisonnat A, Soulantica K, Philippot K. Organometallic approach for the synthesis of nanostructures. NEW J CHEM 2013. [DOI: 10.1039/c3nj00650f] [Citation(s) in RCA: 106] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
|
31
|
Renard L, Babot O, Saadaoui H, Fuess H, Brötz J, Gurlo A, Arveux E, Klein A, Toupance T. Nanoscaled tin dioxide films processed from organotin-based hybrid materials: an organometallic route toward metal oxide gas sensors. NANOSCALE 2012; 4:6806-6813. [PMID: 23011110 DOI: 10.1039/c2nr31883k] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Nanocrystalline tin dioxide (SnO(2)) ultra-thin films were obtained employing a straightforward solution-based route that involves the calcination of bridged polystannoxane films processed by the sol-gel process from bis(triprop-1-ynylstannyl)alkylene and -arylene precursors. These films have been thoroughly characterized by FTIR, contact angle measurements, X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), atomic force (AFM) and scanning electron (SEM) microscopies. Annealing at a high temperature gave 30-35 nm thick cassiterite SnO(2) films with a mean crystallite size ranging from 4 to 7 nm depending on the nature of the organic linker in the distannylated compound used as a precursor. In the presence of H(2) and CO gases, these layers led to highly sensitive, reversible and reproducible responses. The sensing properties were discussed in regard to the crystallinity and porosity of the sensing body that can be tuned by the nature of the precursor employed. Organometallic chemistry combined with the sol-gel process therefore offers new possibilities toward metal oxide nanostructures for the reproducible and sensitive detection of combustible and toxic gases.
Collapse
Affiliation(s)
- Laetitia Renard
- University of Bordeaux, Institut des Sciences Moléculaires, ISM UMR 5255 CNRS, C2M Group, 33405 Talence Cédex, France
| | | | | | | | | | | | | | | | | |
Collapse
|
32
|
de Kergommeaux A, Faure-Vincent J, Pron A, de Bettignies R, Malaman B, Reiss P. Surface Oxidation of Tin Chalcogenide Nanocrystals Revealed by 119Sn–Mössbauer Spectroscopy. J Am Chem Soc 2012; 134:11659-66. [DOI: 10.1021/ja3033313] [Citation(s) in RCA: 79] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Antoine de Kergommeaux
- CEA Grenoble, INAC, UMR 5819
SPrAM (CEA/CNRS/UJF-Grenoble 1), Laboratoire d’Electronique Moléculaire, Organique et Hybride, 17 rue des
Martyrs, 38054 Grenoble cedex 9, France
- INES, CEA-DRT/LITEN/DTS/LMPV, Institut National de l’Energie Solaire, Le Bourget
du Lac, France
| | - Jérôme Faure-Vincent
- CEA Grenoble, INAC, UMR 5819
SPrAM (CEA/CNRS/UJF-Grenoble 1), Laboratoire d’Electronique Moléculaire, Organique et Hybride, 17 rue des
Martyrs, 38054 Grenoble cedex 9, France
| | - Adam Pron
- CEA Grenoble, INAC, UMR 5819
SPrAM (CEA/CNRS/UJF-Grenoble 1), Laboratoire d’Electronique Moléculaire, Organique et Hybride, 17 rue des
Martyrs, 38054 Grenoble cedex 9, France
- Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3 00664
Warszawa, Poland
| | - Rémi de Bettignies
- INES, CEA-DRT/LITEN/DTS/LMPV, Institut National de l’Energie Solaire, Le Bourget
du Lac, France
| | - Bernard Malaman
- Institut Jean
Lamour, Université de Lorraine,
UMR 7198, B.P. 70239,
54506 Vandoeuvre-les-Nancy Cedex, France
| | - Peter Reiss
- CEA Grenoble, INAC, UMR 5819
SPrAM (CEA/CNRS/UJF-Grenoble 1), Laboratoire d’Electronique Moléculaire, Organique et Hybride, 17 rue des
Martyrs, 38054 Grenoble cedex 9, France
| |
Collapse
|
33
|
Uddin MT, Nicolas Y, Olivier C, Toupance T, Servant L, Müller MM, Kleebe HJ, Ziegler J, Jaegermann W. Nanostructured SnO2–ZnO Heterojunction Photocatalysts Showing Enhanced Photocatalytic Activity for the Degradation of Organic Dyes. Inorg Chem 2012; 51:7764-73. [DOI: 10.1021/ic300794j] [Citation(s) in RCA: 434] [Impact Index Per Article: 36.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Md. Tamez Uddin
- University of Bordeaux, Institut des Sciences
Moléculaires, UMR 5255 CNRS, 351 Cours de la Libération,
F-33405 Talence Cedex, France
| | - Yohann Nicolas
- University of Bordeaux, Institut des Sciences
Moléculaires, UMR 5255 CNRS, 351 Cours de la Libération,
F-33405 Talence Cedex, France
| | - Céline Olivier
- University of Bordeaux, Institut des Sciences
Moléculaires, UMR 5255 CNRS, 351 Cours de la Libération,
F-33405 Talence Cedex, France
| | - Thierry Toupance
- University of Bordeaux, Institut des Sciences
Moléculaires, UMR 5255 CNRS, 351 Cours de la Libération,
F-33405 Talence Cedex, France
| | - Laurent Servant
- University of Bordeaux, Institut des Sciences
Moléculaires, UMR 5255 CNRS, 351 Cours de la Libération,
F-33405 Talence Cedex, France
| | - Mathis M. Müller
- Institute of Material Science, Technische Universität Darmstadt, Petersenstrasse 23, D-64287 Darmstadt, Germany
| | - Hans-Joachim Kleebe
- Institute of Material Science, Technische Universität Darmstadt, Petersenstrasse 23, D-64287 Darmstadt, Germany
| | - Jürgen Ziegler
- Institute of Material Science, Technische Universität Darmstadt, Petersenstrasse 23, D-64287 Darmstadt, Germany
| | - Wolfram Jaegermann
- Institute of Material Science, Technische Universität Darmstadt, Petersenstrasse 23, D-64287 Darmstadt, Germany
| |
Collapse
|
34
|
Jaganyi D, Altaf M, Wekesa I. Synthesis and characterization of whisker-shaped MnO2 nanostructure at room temperature. APPLIED NANOSCIENCE 2012. [DOI: 10.1007/s13204-012-0135-3] [Citation(s) in RCA: 96] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
35
|
Jensen KMØ, Christensen M, Juhas P, Tyrsted C, Bøjesen ED, Lock N, Billinge SJL, Iversen BB. Revealing the Mechanisms behind SnO2 Nanoparticle Formation and Growth during Hydrothermal Synthesis: An In Situ Total Scattering Study. J Am Chem Soc 2012; 134:6785-92. [DOI: 10.1021/ja300978f] [Citation(s) in RCA: 156] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Kirsten M. Ø. Jensen
- Center for Materials Crystallography,
Department of Chemistry and iNANO, Aarhus University, DK-8000 Aarhus C, Denmark
| | - Mogens Christensen
- Center for Materials Crystallography,
Department of Chemistry and iNANO, Aarhus University, DK-8000 Aarhus C, Denmark
| | - Pavol Juhas
- Applied Physics and Applied
Mathematics, Columbia University, New York,
New York 10027, United States
| | - Christoffer Tyrsted
- Center for Materials Crystallography,
Department of Chemistry and iNANO, Aarhus University, DK-8000 Aarhus C, Denmark
| | - Espen D. Bøjesen
- Center for Materials Crystallography,
Department of Chemistry and iNANO, Aarhus University, DK-8000 Aarhus C, Denmark
| | - Nina Lock
- Center for Materials Crystallography,
Department of Chemistry and iNANO, Aarhus University, DK-8000 Aarhus C, Denmark
| | - Simon J. L. Billinge
- Applied Physics and Applied
Mathematics, Columbia University, New York,
New York 10027, United States
- Condensed Matter Physics and Materials
Science Department, Brookhaven National Laboratory, Upton, New York 11973, United States
| | - Bo B. Iversen
- Center for Materials Crystallography,
Department of Chemistry and iNANO, Aarhus University, DK-8000 Aarhus C, Denmark
| |
Collapse
|
36
|
Dhaouadi H, Ghodbane O, Hosni F, Touati F. Mn3O4 Nanoparticles: Synthesis, Characterization, and Dielectric Properties. ACTA ACUST UNITED AC 2012. [DOI: 10.5402/2012/706398] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Mn3O4 nanoparticles were prepared by a simple chemical route using cetyltetramethylammonium bromide (CTAB) as a template agent. Mn3O4 nanocrystals present an octahedral shape, and their crystallite size varies between 20 and 80 nm. They were characterized by XRD, SEM, DTA/TG, and IR spectroscopy. XRD studies confirm the presence of a highly crystalline Mn3O4 phase. The Rietveld refinement of the X-ray diffraction data confirms that Mn3O4 nanoparticles crystallize in the tetragonal system with space group I41/amd. DTA/TG and XRD measurements demonstrate the phase transition toward a spinel structure between 25 and 700∘C. The electrical conductivity increases between 80 and 300∘C, suggesting a semiconducting behaviour of Mn3O4. Both dielectric dispersion (ε′) and dielectric loss (ε′′) were investigated from 80 and 300∘C in the frequency range of 10 Hz–13 MHz. The dielectric properties showed typical dielectric dispersion based on the Maxwell-Wagner model.
Collapse
Affiliation(s)
- Hassouna Dhaouadi
- Laboratoire des Matériaux Utiles, Institut National de Recherche et d’Analyse Physico-Chimique, Pôle Technologique de Sidi-Thabet, 2020 Tunis, Tunisia
| | - Ouassim Ghodbane
- Laboratoire des Matériaux Utiles, Institut National de Recherche et d’Analyse Physico-Chimique, Pôle Technologique de Sidi-Thabet, 2020 Tunis, Tunisia
| | - Faouzi Hosni
- Unité de Radiotraitement, Centre National des Sciences et Technologies Nucléaires (CNSTN), Pôle Technologique de Sidi Thabet, 2020 Tunis, Tunisia
| | - Fathi Touati
- Laboratoire des Matériaux Utiles, Institut National de Recherche et d’Analyse Physico-Chimique, Pôle Technologique de Sidi-Thabet, 2020 Tunis, Tunisia
| |
Collapse
|
37
|
Muñoz-Espí R, Dolcet P, Rossow T, Wagner M, Landfester K, Crespy D. Tin(IV) oxide coatings from hybrid organotin/polymer nanoparticles. ACS APPLIED MATERIALS & INTERFACES 2011; 3:4292-4298. [PMID: 21956966 DOI: 10.1021/am200954e] [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
Tin dioxide coatings are widely applied in glasses and ceramics to improve not only optical, but also mechanical properties. In this work, we report a new method to prepare SnO(2) coatings from aqueous dispersions of polymer/organotin hybrid nanoparticles. Various liquid organotin compounds were encapsulated in polymeric nanoparticles synthesized by miniemulsion polymerization. Large amounts of tetrabutyltin and bis(tributyltin) could be successfully incorporated in cross-linked and noncross-linked polystyrene nanoparticles that served as sacrificial templates for the formation of tin oxide coatings after etching with oxygen plasma or calcination. Cross-linked polystyrene particles containing bis(tributyltin)--selected for having a high boiling point--were found to be especially suited for the oxide coating formation. The content of metal in the particles was up to 12 wt %, and estimations by thermogravimetrical indicated that at least 96% of the total organotin compound was converted to SnO(2). The resulting coatings were mainly identified as tetragonal SnO(2) (cassiterite) by X-ray diffraction, although a coexistence of this phase with orthorhombic SnO(2) was observed for samples prepared with bis(tributyltin).
Collapse
Affiliation(s)
- Rafael Muñoz-Espí
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany.
| | | | | | | | | | | |
Collapse
|
38
|
Jo YH, Jung I, Choi CS, Kim I, Lee HM. Synthesis and characterization of low temperature Sn nanoparticles for the fabrication of highly conductive ink. NANOTECHNOLOGY 2011; 22:225701. [PMID: 21454937 DOI: 10.1088/0957-4484/22/22/225701] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
To fabricate a low cost, highly conductive ink for inkjet printing, we synthesized a gram scale of uniformly sized Sn nanoparticles by using a modified polyol process and observed a significant size-dependent melting temperature depression from 234.1 °C for bulk Sn to 177.3 °C for 11.3 nm Sn nanoparticles. A 20 wt% of Sn nanoparticles was dispersed in the 50% ethylene glycol: 50% isopropyl alcohol mixed solvent for the appropriate viscosity (11.6 cP) and surface tension (32 dyn cm(-1)). To improve the electrical property, we applied the surface treatments of hydrogen reduction and plasma ashing. The two treatments had the effect of diminishing the sheet resistance from 1 kΩ/sq to 50 Ω/sq. In addition, conductive patterns (1 cm × 1 cm) were successfully drawn on the Si wafer using an inkjet printing instrument with conductive Sn ink. The maximum resistivity for an hour of sintering at 250 °C was 64.27 µΩ cm, which is six times higher than the bulk Sn resistivity (10.1 µΩ cm).
Collapse
Affiliation(s)
- Yun Hwan Jo
- Department of Materials Science and Engineering, KAIST, Yuseong-gu, Daejoen, Korea
| | | | | | | | | |
Collapse
|
39
|
Singhal A, Sanyal B, Tyagi AK. Tin oxide nanocrystals: controllable synthesis, characterization, optical properties and mechanistic insights into the formation process. RSC Adv 2011. [DOI: 10.1039/c1ra00086a] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
|
40
|
Li X, Zhou L, Gao J, Miao H, Zhang H, Xu J. Synthesis of Mn3O4 nanoparticles and their catalytic applications in hydrocarbon oxidation. POWDER TECHNOL 2009. [DOI: 10.1016/j.powtec.2008.08.010] [Citation(s) in RCA: 56] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
|
41
|
Kazemi A, Lahann J. Environmentally responsive core/shell particles via electrohydrodynamic co-jetting of fully miscible polymer solutions. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2008; 4:1756-62. [PMID: 18819137 DOI: 10.1002/smll.200800565] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Herein it is demonstrated that electrohydrodynamic co-jetting is not limited to Janus-type particles, but can also be used for the preparation of core/shell particles. Using side-by-side flow of miscible polymer solutions, electrohydrodynamic co-jetting offers an elegant and scalable route towards preparation of core/shell particles with otherwise difficult-to-prepare particle architectures, including particles with hydrophilic shell and core. Throughout this study, electrohydrodynamic co-jetting of aqueous solutions consisting of a mixture of PAAm-co-AA and PAA is used, and a range of different types of particles with distinct compartments are observed. Transition from Janus particles to core/shell particles appears to be caused by changes in the relative conductivity of the two jetting solutions. After crosslinking, the core/shell particles are stable in aqueous solution and exhibit reproducible swelling behavior while maintaining the original core/shell geometry. In addition, the pH-responsiveness of the particles is demonstrated by repeatedly switching the environmental pH between 1.3 and 12. Moreover, the core/shell particles show surprising uptake selectivity. For instance, a 450% increase in uptake of 6-carboxyfluorescein over rhodamine B base is found.
Collapse
Affiliation(s)
- Abbass Kazemi
- Departments of Chemical Engineering and Materials Science, The University of Michigan, Ann Arbor, MI 48109, USA
| | | |
Collapse
|
42
|
Controllable growth of SnO2 nanoparticles by citric acid assisted hydrothermal process. Colloids Surf A Physicochem Eng Asp 2008. [DOI: 10.1016/j.colsurfa.2008.05.043] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|
43
|
Lassesson A, Schulze M, van Lith J, Brown SA. Tin oxide nanocluster hydrogen and ammonia sensors. NANOTECHNOLOGY 2008; 19:015502. [PMID: 21730533 DOI: 10.1088/0957-4484/19/01/015502] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
We have prepared sensitive hydrogen and ammonia sensors from thin films of tin nanoclusters with diameters between 3 and 10 nm. By baking the samples at 200 °C in ambient air the clusters were oxidized, resulting in very stable films of tin oxide clusters with similar diameters to the original Sn clusters. By monitoring the electrical resistance, it is shown that the cluster films are highly responsive to hydrogen and ammonia at relatively low temperatures, thereby making them attractive for commercial applications in which low power consumption is required. Doping of the films by depositing Pd on top of the clusters resulted in much improved sensor response and response times. It is shown that optimal sensor properties are achieved for very thin cluster films (a few monolayers of clusters).
Collapse
Affiliation(s)
- A Lassesson
- Nano Cluster Devices Ltd, Rutherford Building, University of Canterbury, Christchurch, New Zealand
| | | | | | | |
Collapse
|
44
|
Kuno M. An overview of solution-based semiconductor nanowires: synthesis and optical studies. Phys Chem Chem Phys 2008; 10:620-39. [DOI: 10.1039/b708296g] [Citation(s) in RCA: 143] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
45
|
Core-Shell and Hollow Microspheres Composed of Tin Oxide Nanocrystals as Anode Materials for Lithium-Ion Batteries. ACTA ACUST UNITED AC 2007. [DOI: 10.1149/1.2745631] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
46
|
Cao Q, Gao Y, Chen X, Mu L, Yu W, Qian Y. Solution Phase Synthesis of Hollow SnO2Nanospheres at Room Temperature. CHEM LETT 2006. [DOI: 10.1246/cl.2006.178] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
|
47
|
Erades L, Grandjean D, Nayral C, Soulantica K, Chaudret B, Menini P, Parret F, Maisonnat A. Organometallic approach for platinum and palladium doping of tin and tin oxide nanoparticles: structural characterisation and gas sensor investigations. NEW J CHEM 2006. [DOI: 10.1039/b600197a] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
48
|
Veith M, Frères J, König P, Schütt O, Huch V, Blin J. Nanoscaled Sn and Pb Particles Aligned in Al
2
O
3
Tubes Obtained from Molecular Precursors. Eur J Inorg Chem 2005. [DOI: 10.1002/ejic.200500368] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Michael Veith
- Institut für anorganische Chemie, Universität des Saarlandes, Postfach 151150, 66041 Saarbrücken, Germany
| | - Jacqueline Frères
- Institut für anorganische Chemie, Universität des Saarlandes, Postfach 151150, 66041 Saarbrücken, Germany
| | - Peter König
- Institut für anorganische Chemie, Universität des Saarlandes, Postfach 151150, 66041 Saarbrücken, Germany
| | - Oliver Schütt
- Institut für anorganische Chemie, Universität des Saarlandes, Postfach 151150, 66041 Saarbrücken, Germany
| | - Volker Huch
- Institut für anorganische Chemie, Universität des Saarlandes, Postfach 151150, 66041 Saarbrücken, Germany
| | - Joel Blin
- Institut für anorganische Chemie, Universität des Saarlandes, Postfach 151150, 66041 Saarbrücken, Germany
| |
Collapse
|
49
|
Lai J, Shafi KVPM, Ulman A, Loos K, Popovitz-Biro R, Lee Y, Vogt T, Estournès C. One-Step Synthesis of Core(Cr)/Shell(γ-Fe2O3) Nanoparticles. J Am Chem Soc 2005; 127:5730-1. [PMID: 15839638 DOI: 10.1021/ja0443225] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Core(Cr)/shell(gamma-Fe(2)O(3)) nanoparticles were synthesized by mixing Fe(CO)(5) and Cr(CO)(6) in the 9:1 ratio. These particles exhibit narrow size distribution with 13.5 nm as mean diameter and uniform spherical shape. The TEM image, which is in good agreement with the synchrotron powder XRD pattern, reveals the heterogeneous nature (core/shell structure). The analysis of the pattern reveals gamma-Fe(2)O(3) structure and a metal crystal structure. Mossbauer spectra, which support the superparamagnetic behavior determined by H-M measurement, do not show any traceable amount of Fe(0). This suggests that the metal component is Cr. EELS analysis and iron mapping suggest controlled stoichiometry and also confirm a core made of Cr and a shell made of gamma-Fe(2)O(3).
Collapse
Affiliation(s)
- Jriuan Lai
- Othmer Department of Chemical and Biological Sciences and Engineering, Polytechnic University, 6 Metrotech Center Brooklyn, New York 11201, USA
| | | | | | | | | | | | | | | |
Collapse
|
50
|
Shao W, Wang Z, Zhang Y, Cui J, Yu W, Qian Y. Controlled Synthesis of SnO2Hollow Microspheres via a Facile Template-free Hydrothermal Route. CHEM LETT 2005. [DOI: 10.1246/cl.2005.556] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
|