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Mourdikoudis S, Menelaou M, Fiuza-Maneiro N, Zheng G, Wei S, Pérez-Juste J, Polavarapu L, Sofer Z. Oleic acid/oleylamine ligand pair: a versatile combination in the synthesis of colloidal nanoparticles. NANOSCALE HORIZONS 2022; 7:941-1015. [PMID: 35770698 DOI: 10.1039/d2nh00111j] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
A variety of colloidal chemical approaches has been developed in the last few decades for the controlled synthesis of nanostructured materials in either water or organic solvents. Besides the precursors, the solvents, reducing agents, and the choice of surfactants are crucial for tuning the composition, morphology and other properties of the resulting nanoparticles. The ligands employed include thiols, amines, carboxylic acids, phosphines and phosphine oxides. Generally, adding a single ligand to the reaction mixture is not always adequate to yield the desired features. In this review, we discuss in detail the role of the oleic acid/oleylamine ligand pair in the chemical synthesis of nanoparticles. The combined use of these ligands belonging to two different categories of molecules aims to control the size and shape of nanoparticles and prevent their aggregation, not only during their synthesis but also after their dispersion in a carrier solvent. We show how the different binding strengths of these two molecules and their distinct binding modes on specific facets affect the reaction kinetics toward the production of nanostructures with tailored characteristics. Additional functions, such as the reducing function, are also noted, especially for oleylamine. Sometimes, the carboxylic acid will react with the alkylamine to form an acid-base complex, which may serve as a binary capping agent and reductant; however, its reducing capacity may range from lower to much lower than that of oleylamine. The types of nanoparticles synthesized in the simultaneous presence of oleic acid and oleylamine and discussed herein include metal oxides, metal chalcogenides, metals, bimetallic structures, perovskites, upconversion particles and rare earth-based materials. Diverse morphologies, ranging from spherical nanoparticles to anisotropic, core-shell and hetero-structured configurations are presented. Finally, the relation between tuning the resulting surface and volume nanoparticle properties and the relevant applications is highlighted.
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Affiliation(s)
- Stefanos Mourdikoudis
- Department of Inorganic Chemistry, University of Chemistry and Technology Prague, Technicka 5, 16628 - Prague 6, Czech Republic.
| | - Melita Menelaou
- Department of Chemical Engineering, Faculty of Geotechnical Sciences and Environmental Management, Cyprus University of Technology, 3036 Limassol, Cyprus.
| | - Nadesh Fiuza-Maneiro
- CINBIO, Universidade de Vigo, Materials Chemistry and Physics, Department of Physical Chemistry, Campus Universitario Lagoas Marcosende, 36310 Vigo, Spain.
| | - Guangchao Zheng
- School of Physics and Microelectronics, Zhengzhou University, Zhengzhou, 450001, China
| | - Shuangying Wei
- Department of Inorganic Chemistry, University of Chemistry and Technology Prague, Technicka 5, 16628 - Prague 6, Czech Republic.
| | - Jorge Pérez-Juste
- CINBIO, Universidade de Vigo, Departamento de Química Física, Campus Universitario As Lagoas, Marcosende, 36310 Vigo, Spain
- Galicia Sur Health Research Institute (IIS Galicia Sur), 36310 Vigo, Spain
| | - Lakshminarayana Polavarapu
- CINBIO, Universidade de Vigo, Materials Chemistry and Physics, Department of Physical Chemistry, Campus Universitario Lagoas Marcosende, 36310 Vigo, Spain.
| | - Zdeněk Sofer
- Department of Inorganic Chemistry, University of Chemistry and Technology Prague, Technicka 5, 16628 - Prague 6, Czech Republic.
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Al-Senani GM, Al-Saeedi SI. The Use of Synthesized CoO/Co 3O 4 Nanoparticles as A Corrosion Inhibitor of Low-Carbon Steel in 1 M HCl. MATERIALS 2022; 15:ma15093129. [PMID: 35591463 PMCID: PMC9104794 DOI: 10.3390/ma15093129] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/19/2022] [Revised: 04/22/2022] [Accepted: 04/23/2022] [Indexed: 02/04/2023]
Abstract
CoO/Co3O4 nanoparticles (CoO/Co3O4 NPs) were synthesized with egg white. The effectiveness of CoO/Co3O4 NPs to inhibit the corrosion of carbon steel has verified in acidic medium (1 M HCl). It has been found that Langmuir adsorption isotherm is the dominant adsorption process of CoO/Co3O4 NPs on the surface of low-carbon steel. The thermodynamic parameters also demonstrated that the adsorption process of CoO/Co3O4 NPs was a physicochemical, spontaneous, and exothermic process. The electrochemical impedance spectroscopy technique and potentiodynamic polarization were applied. The results obtained in this study showed that CoO/Co3O4 NPs acted as a mixed inhibitor for the anodic reaction and the cathodic reaction, and the efficiency to inhibit the corrosion was 93% at 80 ppm of the inhibitor. The results of scanning electron microscopy (SEM) technique, energy-dispersive X-ray spectroscopy (EDS), and X-ray electron spectroscopy (XPS) confirmed the effectiveness that was obtained using the inhibitor to protect the surface of low carbon steel. Thus, low-carbon steel can be protected against corrosion in acidic medium using CoO/Co3O4 NPs as inhibitors.
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Santos RV, Cabrera-Pasca GA, Costa CS, Bosch-Santos B, Otubo L, Pereira LFD, Correa BS, Effenberger FB, Burimova A, Freitas RS, Carbonari AW. Crystalline and magnetic properties of CoO nanoparticles locally investigated by using radioactive indium tracer. Sci Rep 2021; 11:21028. [PMID: 34697397 PMCID: PMC8546082 DOI: 10.1038/s41598-021-99810-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Accepted: 09/30/2021] [Indexed: 11/17/2022] Open
Abstract
We herein report a comprehensive investigation on the magnetic, structural, and electric properties of CoO nanoparticles with different sizes by local inspection through hyperfine interactions measured in a wide range of temperatures (10–670 K) by using radioactive \documentclass[12pt]{minimal}
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\begin{document}$$^{111}$$\end{document}111Cd) tracers with the perturbed angular correlations technique. Small cobalt oxide nanoparticles with the characteristic size of 6.5 nm have been prepared by the wet chemical route that turned out to be essential to incorporate radioactivity tracers during nucleation and growth of the particles. Nanocrystalline samples with 22.1 nm size were obtained by thermal treatments under low pressure of helium at 670 K. The hyperfine data were correlated with X-ray diffraction, ZFC–FC magnetic measurements, and transmission electron microscopy to describe the structure, magnetic properties, size, and shape of samples. An analysis of the temperature evolution of hyperfine parameters revealed that the structural distortion and the magnetic disorder in the core and on the surface layer play an important role in the magnetic behavior of CoO nanoparticles.
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Affiliation(s)
- Renata V Santos
- Programa de Pós-Graduação em Ciência e Engenharia de Materiais - PPGCEM, Universidade Federal do Pará, Ananindeua, PA, 67130-660, Brazil
| | - Gabriel A Cabrera-Pasca
- Programa de Pós-Graduação em Ciência e Engenharia de Materiais - PPGCEM, Universidade Federal do Pará, Ananindeua, PA, 67130-660, Brazil.,Faculdade de Ciências Exatas e Tecnologia, Universidade Federal do Pará, Abaetetuba, PA, 68440-000, Brazil
| | - Cleidilane S Costa
- Programa de Pós-Graduação em Ciência e Engenharia de Materiais - PPGCEM, Universidade Federal do Pará, Ananindeua, PA, 67130-660, Brazil.,Faculdade de Ciências Exatas e Tecnologia, Universidade Federal do Pará, Abaetetuba, PA, 68440-000, Brazil
| | - Brianna Bosch-Santos
- Instituto de Pesquisas Energéticas e Nucleares, IPEN-CNEN/SP, 05508-000, São Paulo, SP, Brazil
| | - Larissa Otubo
- Instituto de Pesquisas Energéticas e Nucleares, IPEN-CNEN/SP, 05508-000, São Paulo, SP, Brazil
| | - Luciano F D Pereira
- Instituto de Pesquisas Energéticas e Nucleares, IPEN-CNEN/SP, 05508-000, São Paulo, SP, Brazil
| | - Bruno S Correa
- Instituto de Pesquisas Energéticas e Nucleares, IPEN-CNEN/SP, 05508-000, São Paulo, SP, Brazil
| | - Fernando B Effenberger
- Instituto de Pesquisas Energéticas e Nucleares, IPEN-CNEN/SP, 05508-000, São Paulo, SP, Brazil
| | - Anastasia Burimova
- Instituto de Pesquisas Energéticas e Nucleares, IPEN-CNEN/SP, 05508-000, São Paulo, SP, Brazil
| | - Rafael S Freitas
- Instituto de Física, Universidade de São Paulo, São Paulo, SP, 05508-090, Brazil
| | - Artur W Carbonari
- Instituto de Pesquisas Energéticas e Nucleares, IPEN-CNEN/SP, 05508-000, São Paulo, SP, Brazil.
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Zhang R, Esposito AM, Thornburg ES, Chen X, Zhang X, Philip MA, Magana A, Gewirth AA. Conversion of Co Nanoparticles to CoS in Metal-Organic Framework-Derived Porous Carbon during Cycling Facilitates Na 2S Reactivity in a Na-S Battery. ACS APPLIED MATERIALS & INTERFACES 2020; 12:29285-29295. [PMID: 32490653 DOI: 10.1021/acsami.0c05370] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Room-temperature sodium-sulfur batteries have attracted wide interest due to their high energy density and high natural abundance. Polysulfide dissolution and irreversible Na2S conversion are challenges to achieving high battery performance. Herein, we utilize a metal-organic framework-derived Co-containing nitrogen-doped porous carbon (CoNC) as a catalytic sulfur cathode host. A concentrated sodium electrolyte based on sodium bis(fluorosulfonyl)imide, dimethoxyethane, and bis(2,2,2-trifluoroethyl) ether is used to mitigate polysulfide dissolution. We tune the amount of Co present in the CoNC carbon host by acid washing. Significant improvement in reversible sulfur conversion and capacity retention is observed with a higher Co content in CoNC, with 600 mAh g-1 and 77% capacity retention for CoNC and 261 mAh g-1 and 56% capacity retention for acid-washed CoNC at cycle 50 at 80 mAh g-1. Post-mortem X-ray photoelectron spectroscopy, transmission electron microscopy, and selected area electron diffraction suggest that CoS is formed during cycling in place of Co nanoparticles and CoN4 sites. Raman spectroscopy suggests that CoS exhibits a catalytic effect on the oxidation of Na2S. Our findings provide insights into understanding the role Co-based catalysts play in sulfur batteries.
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Affiliation(s)
- Ruixian Zhang
- Department of Chemistry, University of Illinois, Urbana, Illinois 61801, United States
| | - Anne Marie Esposito
- Department of Chemistry, University of Illinois, Urbana, Illinois 61801, United States
| | - Eric S Thornburg
- Department of Chemistry, University of Illinois, Urbana, Illinois 61801, United States
| | - Xinyi Chen
- Department of Chemistry, University of Illinois, Urbana, Illinois 61801, United States
| | - Xueyong Zhang
- Department of Chemistry, University of Illinois, Urbana, Illinois 61801, United States
| | - Maria A Philip
- Department of Chemistry, University of Illinois, Urbana, Illinois 61801, United States
| | - Alexis Magana
- Department of Chemistry, University of Illinois, Urbana, Illinois 61801, United States
| | - Andrew A Gewirth
- Department of Chemistry, University of Illinois, Urbana, Illinois 61801, United States
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Dendritic defect-rich palladium-copper-cobalt nanoalloys as robust multifunctional non-platinum electrocatalysts for fuel cells. Nat Commun 2018; 9:3702. [PMID: 30209252 PMCID: PMC6135778 DOI: 10.1038/s41467-018-06043-1] [Citation(s) in RCA: 107] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2018] [Accepted: 08/13/2018] [Indexed: 11/29/2022] Open
Abstract
Recently, the development of high-performance non-platinum electrocatalysts for fuel cell applications has been gaining attention. Palladium-based nanoalloys are considered as promising candidates to substitute platinum catalysts for cathodic and anodic reactions in fuel cells. Here, we develop a facile route to synthesize dendritic palladium–copper–cobalt trimetallic nanoalloys as robust multifunctional electrocatalysts for oxygen reduction and formic acid oxidation. To the best of our knowledge, the mass activities of the dendritic Pd59Cu30Co11 nanoalloy toward oxygen reduction and formic acid oxidation are higher than those previously reported for non-platinum metal nanocatalysts. The Pd59Cu30Co11 nanoalloys also exhibit superior durability for oxygen reduction and formic acid oxidation as well as good antimethanol/ethanol interference ability compared to a commercial platinum/carbon catalyst. The high performance of the dendritic Pd59Cu30Co11 nanoalloys is attributed to a combination of effects, including defects, a synergistic effect, change of d-band center of palladium, and surface strain. Fuel cells are promising for sustainable energy generation, but are limited by the performance of electrocatalysts. Here the authors synthesize dendritic palladium–copper–cobalt nanoalloys with electrocatalytic activity for oxygen reduction and formic acid oxidation as well as alcohol tolerance.
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Zhang Y, Han F, Dai Q, Tang J. Magnetic properties and photovoltaic applications of ZnO:Mn nanocrystals. J Colloid Interface Sci 2018; 517:194-203. [DOI: 10.1016/j.jcis.2018.02.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2017] [Revised: 01/30/2018] [Accepted: 02/01/2018] [Indexed: 11/27/2022]
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Qi Q, Chen Y, Wang L, Zeng D, Peng DL. Phase-controlled synthesis and magnetic properties of cubic and hexagonal CoO nanocrystals. NANOTECHNOLOGY 2016; 27:455602. [PMID: 27727155 DOI: 10.1088/0957-4484/27/45/455602] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
We report facile solution approaches for the phase-controlled synthesis of rock-salt cubic CoO (c-CoO) and wurtzite-type hexagonal CoO (h-CoO) nanocrystals. In the syntheses, the cobalt precursor cobalt (II) stearate is decomposed in 1-octadecene at 320 °C, and the crystalline phase of synthesized products depend critically on the amounts of H2O. While the presence of small amounts of H2O promotes the generation of c-CoO, h-CoO is obtained in the absence of H2O. The as-prepared c-CoO nanocrystals exhibit a multi-branched morphology with several short rods growing on the 〈100〉 direction interlaced together whereas the h-CoO nanocrystals show a multi-rod structure with several rods growing on the same base facet along the c-axis. The formation mechanisms are discussed on the basis of FTIR spectrometry data and color changes of the reaction mixture. Finally the magnetic properties of as-prepared CoO nanocrystals are measured and the results show that c-CoO nanocrystals are intrinsically antiferromagnetic with a Néel temperature of about 300 K but the antiferromagnetic ordering is not distinct for the h-CoO nanocrystals. Weak ferromagnetic contributions are also observed for both c-CoO and h-CoO nanocrystals with obvious magnetic hysteresis at 5 and 300 K. The uncompensated spins that can be induced by crystalline defects such as cation-vacancy may account for the observed weak ferromagnetism.
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Affiliation(s)
- Qiongqiong Qi
- Department of Materials Science and Engineering, Collaborative Innovation Center of Chemistry for Energy Materials, College of Materials, Xiamen University, Xiamen 361005, People's Republic of China
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Guan Q, Cheng J, Li X, Ni W, Wang B. Porous CoF2Spheres Synthesized by a One-Pot Solvothermal Method as High Capacity Cathode Materials for Lithium-Ion Batteries. CHINESE J CHEM 2016. [DOI: 10.1002/cjoc.201600229] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Qun Guan
- Institute of Chemical Materials; China Academy of Engineering Physics; Mianyang Sichuan 621900 China
- Sichuan R&D Center of New Materials; Mianyang Sichuan 621900 China
| | - Jianli Cheng
- Institute of Chemical Materials; China Academy of Engineering Physics; Mianyang Sichuan 621900 China
- Sichuan R&D Center of New Materials; Mianyang Sichuan 621900 China
| | - Xiaodong Li
- Institute of Chemical Materials; China Academy of Engineering Physics; Mianyang Sichuan 621900 China
- Sichuan R&D Center of New Materials; Mianyang Sichuan 621900 China
| | - Wei Ni
- Institute of Chemical Materials; China Academy of Engineering Physics; Mianyang Sichuan 621900 China
- Sichuan R&D Center of New Materials; Mianyang Sichuan 621900 China
| | - Bin Wang
- Institute of Chemical Materials; China Academy of Engineering Physics; Mianyang Sichuan 621900 China
- Sichuan R&D Center of New Materials; Mianyang Sichuan 621900 China
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Ruan Z, Zhang Y, Tu J, Qin J, Li Q, Li Z. Dramatically enhancing the yield of carbon nanotubes by simply adding oxygen-containing molecules in solid-state synthesis. Chem Commun (Camb) 2016; 52:2976-9. [DOI: 10.1039/c5cc09219a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Commercially available oxygen-containing molecules are utilized to enhance the yield of carbon nanotubes in the solid-state pyrolysis of organometallic precursors.
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Affiliation(s)
- Zhijun Ruan
- Department of Chemistry
- Hubei Key Lab on Organic and Polymeric Opto-Electronic Materials
- Wuhan University
- Wuhan 430072
- China
| | - Yufan Zhang
- Department of Chemistry
- Hubei Key Lab on Organic and Polymeric Opto-Electronic Materials
- Wuhan University
- Wuhan 430072
- China
| | - Jin Tu
- Department of Chemistry
- Hubei Key Lab on Organic and Polymeric Opto-Electronic Materials
- Wuhan University
- Wuhan 430072
- China
| | - Jingui Qin
- Department of Chemistry
- Hubei Key Lab on Organic and Polymeric Opto-Electronic Materials
- Wuhan University
- Wuhan 430072
- China
| | - Qianqian Li
- Department of Chemistry
- Hubei Key Lab on Organic and Polymeric Opto-Electronic Materials
- Wuhan University
- Wuhan 430072
- China
| | - Zhen Li
- Department of Chemistry
- Hubei Key Lab on Organic and Polymeric Opto-Electronic Materials
- Wuhan University
- Wuhan 430072
- China
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Ruan Z, Rong W, Li Q, Li Z. Synthesis and Solid-State Pyrolysis Behavior of POSS Containing Organometallic Polymer with Dicobalt Hexacarbonyl in the Side Chain. J Inorg Organomet Polym Mater 2014. [DOI: 10.1007/s10904-014-0092-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Guo CX, Chen S, Lu X. Ethylenediamine-mediated synthesis of Mn₃O₄ nano-octahedrons and their performance as electrocatalysts for the oxygen evolution reaction. NANOSCALE 2014; 6:10896-10901. [PMID: 25117715 DOI: 10.1039/c4nr03822c] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Mn₃O₄ octahedrons with well-defined facets exhibit enhanced catalytic activity and sensing characteristics, and have attracted considerable attention in recent years. However, current fabrication methods for Mn₃O₄ octahedrons generally produce particles of micron and sub-micron sizes, and impurities such as MnO₂ and Mn₂O₃ are often found. We present the synthesis of Mn₃O₄ nano-octahedrons with a pure Mn₃O₄ phase and size down to 50 nm based on a hydrothermal method using Mn(NO₃)₂ as the manganese source and ethylenediamine (EDA) as the structure-mediating agent. It is found that EDA plays a crucial role in the formation of Mn₃O₄ nano-octahedrons in regulating both the morphology and the crystal structure of the products. The growth process is proposed to follow a "dissolution-recrystallization" and "capping-molecule assisted growth" mechanism. As electrocatalysts towards the oxygen evolution reaction, the 50 nm Mn₃O₄ nano-octahedrons demonstrate a considerably enhanced activity compared to 160 nm Mn₃O₄ octahedrons.
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Affiliation(s)
- Chun Xian Guo
- Department of Chemical & Biomolecular Engineering, National University of Singapore, Singapore.
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