1
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Olguín-Orellana GJ, Soldano GJ, Alzate-Morales J, Camarada MB, Mariscal MM. Can graphene improve the thermal conductivity of copper nanofluids? Phys Chem Chem Phys 2023; 25:5489-5500. [PMID: 36734485 DOI: 10.1039/d3cp00064h] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Copper (Cu) nanofluids (NFs) have attracted attention due to their high thermal conductivity, which has conferred a wide variety of applications. However, their high reactivity favors oxidation, corrosion and aggregation, leading them to lose their properties of interest. Copper capped by graphene (Cu@G) core@shell nanoparticles (NPs) have also attracted interest from the medical and industrial sectors because graphene can shield the Cu NPs from undesired phenomena. Additionally, they share some properties that expand the range of applications of Cu NFs. In this work, new Morse potentials are reported to reproduce the behavior of Cu@G NPs through molecular dynamics. Coordination-dependent Morse parameters were fitted for C, H, and Cu based on density functional theory calculations. Then, these parameters were implemented to evaluate the thermal conductivity of Cu@G NFs employing the Green-Kubo formalism, with NPs from 1.5 to 6.1 nm at 100 to 800 K, varying the size, the number of layers and the orientation of the graphene flakes. It was found that Cu@G NFs are stable and have an improved thermal conductivity compared to the Cu NFs, being 3.7 to 18.2 times higher at 300 K with only one graphene layer and above 26.2 times higher for the graphene-trilayered NPs. These values can be higher for temperatures below 300 K. Oppositely, the size, homogeneity and orientations of the graphene flakes did not affect the thermal conductivity of the Cu@G NFs.
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Affiliation(s)
- Gabriel J Olguín-Orellana
- Center for Bioinformatics, Simulation and Modeling (CBSM), Faculty of Engineering, Universidad de Talca, 1 Poniente 1141, Talca, Chile
| | - Germán J Soldano
- INFIQC, CONICET, Departamento de Química Teórica y Computacional, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Argentina.
| | - Jans Alzate-Morales
- Center for Bioinformatics, Simulation and Modeling (CBSM), Faculty of Engineering, Universidad de Talca, 1 Poniente 1141, Talca, Chile
| | - María B Camarada
- Laboratorio de Materiales Funcionales, Departamento de Química Inorgánica, Facultad de Química y de Farmacia, Pontificia Universidad Católica de Chile, Chile.,Centro Investigación en Nanotecnología y Materiales Avanzados, CIEN-UC, Pontificia Universidad Católica de Chile, Santiago, Chile.
| | - Marcelo M Mariscal
- INFIQC, CONICET, Departamento de Química Teórica y Computacional, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Argentina.
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2
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Novel thermal synthesis of ternary Cu-CuO-Cu2O nanospheres supported on reduced graphene oxide for the sensitive non-enzymatic electrochemical detection of pyruvic acid as a cancer biomarker. J Organomet Chem 2023. [DOI: 10.1016/j.jorganchem.2023.122638] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/22/2023]
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3
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Influence of the thermal stability of ammonium perchlorate in presence of heteroleptic copper (I) complexes bearing ethane-1,2-diimine and biphosphines. Inorganica Chim Acta 2023. [DOI: 10.1016/j.ica.2022.121249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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4
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Liu D, Xuan C, Xiao L, Hu Y, Zhang G, Zhao F, Gao H, Jiang W, Hao G. Dense, Three-Dimensional, Highly Absorbent, Graphene Oxide Aerogel Coating on ZnCo 2O 4/ZnO Particles Exerts a Synergistic Catalytic Effect for Ammonium Perchlorate Thermal Decomposition. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:15234-15244. [PMID: 36453942 DOI: 10.1021/acs.langmuir.2c02310] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
As a new type of carbon material, graphene oxide aerogel (GA) is widely used in catalysis due to its porous structure, high-efficiency adsorption, and superb conductivity. In this study, GA was prepared into a dense coating layer surrounding ZnCo2O4/ZnO particles to form a composite GA-ZnCo2O4/ZnO by means of a hydrothermal, blast drying, and vacuum-freeze-drying approach applied to catalyze the thermal decomposition of ammonium perchlorate (AP). The physicochemical properties of the obtained GA-ZnCo2O4/ZnO were characterized by different analytical methods. Scanning electron microscopy (SEM) analysis exhibited that GA is coated on the surface of ZnCo2O4/ZnO, forming a dense layer. Brunner Emmet Teller (BET) measurement results show that GA-ZnCo2O4/ZnO has a smooth macropore distribution curve and a larger specific surface area. Moreover, The catalytic effect investigation on AP with GA-ZnCo2O4/ZnO: the high temperature decomposition (HTD) peak temperature of AP in the presence of 5 wt % GA-ZnCo2O4/ZnO was reduced from 441 to 294 °C, and the exotherm of AP was expanded from 205 to 1275 J/g at a heating rate of 15 °C/min. Through the calculation, GA-ZnCo2O4/ZnO makes the activation energy and Gibbs free energy of the AP pyrolysis lower so that the reaction is easier to occur. Thermogravimetric-mass (TG-MS) spectrometry revealed that during thermal decomposition of AP, GA-ZnCo2O4/ZnO leveraged the synergistic catalysis of ZnCo2O4/ZnO and GA that boosted the flow of electrons from ClO4- to O2 and increased the absorption of the gas product to accelerate the AP pyrolysis. These results provided a facile strategy to prepare GA-based composite catalysts with extraordinary application prospects in the domain of solid propellants.
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Affiliation(s)
- Dongqi Liu
- National Special Superfine Powder Engineering Research Center of China, School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing210094, China
| | - Chunlei Xuan
- National Special Superfine Powder Engineering Research Center of China, School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing210094, China
| | - Lei Xiao
- National Special Superfine Powder Engineering Research Center of China, School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing210094, China
| | - Yubing Hu
- National Special Superfine Powder Engineering Research Center of China, School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing210094, China
| | - Guangpu Zhang
- National Special Superfine Powder Engineering Research Center of China, School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing210094, China
| | - Fengqi Zhao
- Xi' an Modern Chemistry Research Institute, Xi'an710065, China
| | - Hongxu Gao
- Xi' an Modern Chemistry Research Institute, Xi'an710065, China
| | - Wei Jiang
- National Special Superfine Powder Engineering Research Center of China, School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing210094, China
| | - Gazi Hao
- National Special Superfine Powder Engineering Research Center of China, School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing210094, China
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5
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Ismail NA, Shameli K, Mohamad Sukri SNA, Hara H, Teow SY, Moeini H. Sonochemical synthesis of a copper reduced graphene oxide nanocomposite using honey and evaluation of its antibacterial and cytotoxic activities. Front Mol Biosci 2022; 9:995853. [PMID: 36250022 PMCID: PMC9561822 DOI: 10.3389/fmolb.2022.995853] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2022] [Accepted: 09/09/2022] [Indexed: 11/26/2022] Open
Abstract
The combination of graphene-based materials and inorganic nanoparticles for the enhancement of the nanomaterial properties is extensively explored nowadays. In the present work, we used a sonochemical method to synthesize a copper/reduced graphene oxide (Cu/RGO) nanocomposite using Australian honey and vitamin C as capping and reducing agents, respectively. The honey-mediated copper/reduced graphene oxide (H/Cu/RGO) nanocomposite was then characterized through UV-visible, XRD, HRTEM, and FTIR analysis. The copper nanoparticles (Cu-NPs) in the nanocomposite formed uniform spherical shapes with a size of 2.20 ± 0.70 nm, which attached to the reduced graphene oxide (RGO) layers. The nanocomposite could suppress bacterial growth in both types of bacteria strains. However, in this study, the nanocomposite exhibited good bactericidal activity toward the Gram-positive bacteria than the Gram-negative bacteria. It also showed a cytotoxic effect on the cancer colorectal cell line HCT11, even in low concentrations. These results suggested that the H/Cu/RGO nanocomposite can be a suitable component for biomedical applications.
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Affiliation(s)
- Nur Afini Ismail
- Malaysia-Japan International Institute of Technology, Universiti Teknologi Malaysia Jalan Sultan Yahya Petra, Kuala Lumpur, Malaysia
| | - Kamyar Shameli
- Malaysia-Japan International Institute of Technology, Universiti Teknologi Malaysia Jalan Sultan Yahya Petra, Kuala Lumpur, Malaysia
- *Correspondence: Kamyar Shameli, ; Hassan Moeini,
| | - Siti Nur Amalina Mohamad Sukri
- Malaysia-Japan International Institute of Technology, Universiti Teknologi Malaysia Jalan Sultan Yahya Petra, Kuala Lumpur, Malaysia
| | - Hirofumi Hara
- Department of Biotechnology, Graduate School of Agricultural and Life Sciences, University of Tokyo, Tokyo, Japan
| | - Sin-Yeang Teow
- School of Medical and Life Sciences (SMLS), Sunway University, Kuala Lumpur, Malaysia
| | - Hassan Moeini
- School of Medicine, Institute of Virology, Technical University of Munich, Munich, Germany
- *Correspondence: Kamyar Shameli, ; Hassan Moeini,
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6
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Liu X, Li Y, Ma X. Simple synthesis of energetic ferrocene‐based coordination derivatives as attractive multifunctional catalysts for the thermal decomposition of ammonium perchlorate. Appl Organomet Chem 2022. [DOI: 10.1002/aoc.6890] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Xiaoju Liu
- Key Laboratory of Polymer Science and Technology School of Science, Northwestern Polytechnical University Xi’an Shaanxi China
| | - Yang Li
- Key Laboratory of Polymer Science and Technology School of Science, Northwestern Polytechnical University Xi’an Shaanxi China
| | - Xiaoyan Ma
- Key Laboratory of Polymer Science and Technology School of Science, Northwestern Polytechnical University Xi’an Shaanxi China
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7
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Gaete J, Arroyo JL, Norambuena Á, Abarca G, Morales-Verdejo C. Mechanistic Insights into the Thermal Decomposition of Ammonium Perchlorate: The Role of Amino-Functionalized Magnetic Nanoparticles. Inorg Chem 2022; 61:1447-1455. [PMID: 34995064 DOI: 10.1021/acs.inorgchem.1c03121] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
This work reports the characterization and application of two promising nanocatalysts for the thermal decomposition of ammonium perchlorate (AP). To obtain these composite materials, magnetite nanoparticles (Fe3O4 NPs) were functionalized with two different amine derivative groups, tertiary amine (Fe3O4 NPs-A1) and quaternary amine. X-ray photoelectron spectroscopy and differential scanning calorimetry provided mechanistic insights into the thermal decomposition of AP. Furthermore, tertiary and quaternary amine groups play a critical role, where the presence of an extra proton could favor an electron-proton transfer as the rate-determining step. Moreover, Fe3O4 NPs-A1 causes a diminution of the high-temperature decomposition of AP positively to 335 °C, increasing the energy release by 278 J g-1 and consequently affording the lowest activation energy (102 kJ mol-1), indicating a low degree of thermal stability, and accelerating the thermal decomposition of AP.
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Affiliation(s)
- José Gaete
- Universidad Bernardo OHiggins, Facultad de Ciencias de la Salud, Centro Integrativo de Biología y Química Aplicada (CIBQA), General Gana, 1702 Santiago, Chile
| | - Juan Luis Arroyo
- Laboratorio de Materiales Energéticos, Instituto de Investigaciones y Control del Ejército de Chile (IDIC), Av. Pedro Montt, 2136 Santiago, Chile
| | - Ángel Norambuena
- Laboratorio de Materiales Energéticos, Instituto de Investigaciones y Control del Ejército de Chile (IDIC), Av. Pedro Montt, 2136 Santiago, Chile
| | - Gabriel Abarca
- Universidad Bernardo OHiggins, Facultad de Ciencias de la Salud, Centro Integrativo de Biología y Química Aplicada (CIBQA), General Gana, 1702 Santiago, Chile
| | - Cesar Morales-Verdejo
- Universidad Bernardo OHiggins, Facultad de Ciencias de la Salud, Centro Integrativo de Biología y Química Aplicada (CIBQA), General Gana, 1702 Santiago, Chile
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8
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Molina V, Arroyo JL, MacLeod-Carey D, Muñoz-Castro A, Morales-Verdejo C. Catalytic effect of [trans-Cu(μ-OH)(μ-dmpz)]6 on the thermal decomposition of ammonium perchlorate. Polyhedron 2021. [DOI: 10.1016/j.poly.2021.115464] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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9
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Chang F, Wang H, He S, Gu Y, Zhu W, Li T, Ma R. Simultaneous determination of hydroquinone and catechol by a reduced graphene oxide-polydopamine-carboxylated multi-walled carbon nanotube nanocomposite. RSC Adv 2021; 11:31950-31958. [PMID: 35495507 PMCID: PMC9041607 DOI: 10.1039/d1ra06032e] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Accepted: 09/09/2021] [Indexed: 01/31/2023] Open
Abstract
A reduced graphene oxide–polydopamine–carboxylated multi-walled carbon nanotube (RGO–PDA–cMWCNT) nanocomposite was fabricated via a facile, one-pot procedure and was characterized by a variety of techniques. A novel electrochemical sensor based on RGO–PDA–cMWCNT was constructed to determine hydroquinone (HQ) and catechol (CT) simultaneously. This newly prepared nanocomposite shows excellent electrocatalytic efficacy in the electrode reaction of the two isomers. Specifically, the peak-to-peak potential difference between the two dihydroxybenzenes is 115 mV for oxidation, which is obviously larger than similar electrochemical sensors. The established method displays a wide linear range from 0.5 to 5000 μM with a detection limit (S/N = 3) of 0.066 μM for HQ and 0.073 μM for CT. In addition, this electrochemical approach has been tested to measure the two dihydroxybenzenes in real samples and satisfactory results were recorded. A novel reduced graphene oxide–polydopamine–carboxylated multi-walled carbon nanotube nanocomposite (RGO–PDA–cMWCNT) was fabricated for the sensitive and simultaneous determination of hydroquinone (HQ) and catechol (CT).![]()
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Affiliation(s)
- Fengxia Chang
- School of Chemistry and Environment, Southwest Minzu University Chengdu 610041 P. R. China
| | - Hongyue Wang
- School of Chemistry and Environment, Southwest Minzu University Chengdu 610041 P. R. China
| | - Shuai He
- School of Chemistry and Environment, Southwest Minzu University Chengdu 610041 P. R. China
| | - Yu Gu
- School of Chemistry and Environment, Southwest Minzu University Chengdu 610041 P. R. China
| | - Wenjie Zhu
- School of Chemistry and Environment, Southwest Minzu University Chengdu 610041 P. R. China
| | - Tanwei Li
- School of Chemistry and Environment, Southwest Minzu University Chengdu 610041 P. R. China
| | - Runhui Ma
- School of Chemistry and Environment, Southwest Minzu University Chengdu 610041 P. R. China
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10
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Escobar MA, Morales‐Verdejo C, Arroyo JL, Dreyse P, González I, Brito I, MacLeod‐Carey D, Moreno da Costa D, Cabrera AR. Burning Rate Performance Study of Ammonium Perchlorate Catalyzed by Heteroleptic Copper(I) Complexes with Pyrazino[2,3‐
f
][1,10]phenanthroline‐Based Ligands. Eur J Inorg Chem 2021. [DOI: 10.1002/ejic.202001092] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Manuel A. Escobar
- Departamento de Química Inorgánica Facultad de Química y de Farmacia Pontificia Universidad Católica de Chile Vicuña Mackenna 4860 Macul Santiago Chile
| | - Cesar Morales‐Verdejo
- Universidad Bernardo OHiggins Facultad de Ciencias de la Salud Centro Integrativo de Biología y Química Aplicada (CIBQA) General Gana 1702 Santiago Chile
| | - Juan Luis Arroyo
- Laboratorio de Materiales Energéticos Instituto de Investigaciones y Control del Ejército de Chile, IDIC Av. Pedro Montt 2136 Santiago Chile
| | - Paulina Dreyse
- Departamento de Química Universidad Técnica Federico Santa María Av. España 1680 Valparaíso Chile
| | - Iván González
- Laboratorio de Química Aplicada Instituto de Investigación y Postgrado Facultad de Ciencias de la Salud Universidad Central de Chile Lord Cochrane 418 Santiago Chile
| | - Iván Brito
- Departamento de Química Facultad de Ciencias Básicas Universidad de Antofagasta Av. Angamos 601 Antofagasta Chile
| | - Desmond MacLeod‐Carey
- Universidad Autónoma de Chile Facultad de Ingeniería Instituto de Ciencias Químicas Aplicadas Inorganic Chemistry and Molecular Materials Center El Llano Subercaseaux 2801 San Miguel Santiago Chile
| | - David Moreno da Costa
- Departamento de Química Inorgánica Facultad de Química y de Farmacia Pontificia Universidad Católica de Chile Vicuña Mackenna 4860 Macul Santiago Chile
| | - Alan R. Cabrera
- Departamento de Química Inorgánica Facultad de Química y de Farmacia Pontificia Universidad Católica de Chile Vicuña Mackenna 4860 Macul Santiago Chile
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11
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Arroyo JL, Norambuena Á, Reyes H, Valdebenito C, Abarca G, MacLeod Carey D, Morales-Verdejo C. Heterobimetallic Catalysts for the Thermal Decomposition of Ammonium Perchlorate: Efficient Burning Rate Catalysts for Solid Rocket Motors and Missiles. Inorg Chem 2021; 60:1436-1448. [PMID: 33444017 DOI: 10.1021/acs.inorgchem.0c02639] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We show the synthesis and characterization of four heterobimetallic compounds derived from s-indacene of general formula [{(CO)3Mn}-s-Ic-{MCp*}]q with M = Fe, Co, Ni, and Ru; q = 0, 1+. The complexes reported here were characterized by 1H and 13C NMR, elemental analysis and FT-IR. Additionally, the X-ray crystal structure of [(CO)3Mn-s-Ic-FeCp*] (1) and Mössbauer spectra are reported. The heterobimetallic compounds exhibit higher quasireversible redox potentials compared with ferrocene and catocene under the same reaction conditions. The complexes were tested as catalysts on the thermal decomposition of ammonium perchlorate examined by a differential scanning calorimetry technique to study their catalytic behavior. Compound (1) causes a decrease of ammonium perchlorate's decomposition temperature to 315 °C, consequently increasing the heat release by 138 J·g-1. Conversely, [{(CO)3Mn}-s-Ic'-{CoCp*}] (2) presents a higher heat release (2462 J·g-1), comparable to catocene.
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Affiliation(s)
- Juan Luis Arroyo
- Laboratorio de Materiales Energéticos, Instituto de Investigaciones y Control del Ejército de Chile (IDIC), Av. Pedro Montt 2136, 8320000 Santiago, Chile
| | - Ángel Norambuena
- Laboratorio de Materiales Energéticos, Instituto de Investigaciones y Control del Ejército de Chile (IDIC), Av. Pedro Montt 2136, 8320000 Santiago, Chile
| | - Héctor Reyes
- Departeamento de Ingeniería, Investigación y Desarrollo (DI2D), División de Mantenimiento del Ejército de Chile (DIVMAN), Manuel Rivas Vicuña 365, 9160000 Estación Central, Santiago, Chile
| | - Cristian Valdebenito
- Universidad Bernardo OHiggins, Centro Integrativo de Biología y Química Aplicada (CIBQA), General Gana 1702, 8320000 Santiago, Chile
| | - Gabriel Abarca
- Universidad Bernardo OHiggins, Centro Integrativo de Biología y Química Aplicada (CIBQA), General Gana 1702, 8320000 Santiago, Chile.,Universidad Bernardo OHiggins, Escuela de Obstetricia y Puericultura, Facultad de Salud, General Gana 1702, 8320000 Santiago, Chile
| | - Desmond MacLeod Carey
- Universidad Autónoma de Chile, Facultad de Ingeniería, Instituto de Ciencias Químicas Aplicadas, Inorganic Chemistry and Molecular Materials Center, El Llano Subercaseaux 2801, 8900000 San Miguel, Santiago, Chile
| | - Cesar Morales-Verdejo
- Universidad Bernardo OHiggins, Centro Integrativo de Biología y Química Aplicada (CIBQA), General Gana 1702, 8320000 Santiago, Chile
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12
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Jacukowicz-Sobala I, Stanisławska E, Baszczuk A, Jasiorski M, Kociołek-Balawejder E. Size-Controlled Transformation of Cu 2O into Zero Valent Copper within the Matrix of Anion Exchangers via Green Chemical Reduction. Polymers (Basel) 2020; 12:E2629. [PMID: 33182309 PMCID: PMC7695298 DOI: 10.3390/polym12112629] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Revised: 11/04/2020] [Accepted: 11/05/2020] [Indexed: 01/17/2023] Open
Abstract
Composite materials containing zero valent copper (ZVC) dispersed in the matrix of two commercially available strongly basic anion exchangers with a macroreticular (Amberlite IRA 900Cl) and gel-like (Amberlite IRA 402OH) structure were obtained. Cu0 particles appeared in the resin phase as the product of the reduction of the precursor, i.e., copper oxide(I) particles previously deposited in the two supporting materials. As a result of a one-step transformation of preformed Cu2O particles as templates conducted using green reductant ascorbic acid and under mild conditions, macroporous and gel-type hybrid products containing ZVC were obtained with a total copper content of 7.7 and 5.3 wt%, respectively. X-ray diffraction and FTIR spectroscopy confirmed the successful transformation of the starting oxide particles into a metallic deposit. A scanning electron microscopy study showed that the morphology of the deposit is mainly influenced by the type of matrix exchanger. In turn, the drying steps were crucial to its porosity and mechanical resistance. Because both the shape and size of copper particles and the internal structure of the supporting solid materials can have a decisive impact on the potential applications of the obtained materials, the results presented here reveal a great possibility for the design and synthesis of functional nanocrystalline solids.
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Affiliation(s)
- Irena Jacukowicz-Sobala
- Department of Industrial Chemistry, Wrocław University of Economics and Business, ul. Komandorska 118/120, 53-345 Wrocław, Poland; (E.S.); (E.K.-B.)
| | - Ewa Stanisławska
- Department of Industrial Chemistry, Wrocław University of Economics and Business, ul. Komandorska 118/120, 53-345 Wrocław, Poland; (E.S.); (E.K.-B.)
| | - Agnieszka Baszczuk
- Department of Mechanics, Materials Science and Engineering, Wrocław University of Science and Technology, ul. Smoluchowskiego 25, 50-370 Wrocław, Poland; (A.B.); (M.J.)
| | - Marek Jasiorski
- Department of Mechanics, Materials Science and Engineering, Wrocław University of Science and Technology, ul. Smoluchowskiego 25, 50-370 Wrocław, Poland; (A.B.); (M.J.)
| | - Elżbieta Kociołek-Balawejder
- Department of Industrial Chemistry, Wrocław University of Economics and Business, ul. Komandorska 118/120, 53-345 Wrocław, Poland; (E.S.); (E.K.-B.)
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13
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Abarca G, Ríos PL, Povea P, Cerda-Cavieres C, Morales-Verdejo C, Arroyo JL, Camarada MB. Nanohybrids of reduced graphene oxide and cobalt hydroxide (Co(OH) 2|rGO) for the thermal decomposition of ammonium perchlorate. RSC Adv 2020; 10:23165-23172. [PMID: 35520353 PMCID: PMC9054725 DOI: 10.1039/d0ra02853c] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2020] [Accepted: 06/08/2020] [Indexed: 01/13/2023] Open
Abstract
The catalytic activity of nanoparticles of cobalt hydroxide supported on reduced graphene oxide, Co(OH)2|rGO, was studied for the decomposition of ammonium perchlorate (AP), the principal ingredient of composite solid propellants. Co(OH)2|rGO was synthesized by an in situ reduction method, which avoided the application of extremely high temperatures and harsh processes. rGO stabilized the nanoparticles effectively and prevented their agglomeration. The performance of Co(OH)2|rGO as a catalyst was measured by differential scanning calorimetry. Co(OH)2|rGO affected the high-temperature decomposition (HTD) of AP positively, decreasing the decomposition temperature of AP to 292 °C, and increasing the energy release to 290 J g-1. The diminution of the HTD of AP by Co(OH)2|rGO is in between the best values reported to date, suggesting its potential application as a catalyst for AP decomposition.
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Affiliation(s)
- Gabriel Abarca
- Universidad Bernardo OHiggins, Escuela de Obstetricia y Puericultura, Centro Integrativo de Biología y Química Aplicada (CIBQA) Santiago 8370993 Chile
| | - Paulina L Ríos
- Centro de Nanotecnología Aplicada, Facultad de Ciencias, Universidad Mayor Santiago 8580745 Chile
| | - Paula Povea
- Laboratorio de Materiales Energéticos, Instituto de Investigaciones y Control del Ejército de Chile (IDIC) Av. Pedro Montt 2136 8370899 Santiago Chile
| | | | - Cesar Morales-Verdejo
- Universidad Bernardo OHiggins, Escuela de Obstetricia y Puericultura, Centro Integrativo de Biología y Química Aplicada (CIBQA) Santiago 8370993 Chile
| | - Juan L Arroyo
- Laboratorio de Materiales Energéticos, Instituto de Investigaciones y Control del Ejército de Chile (IDIC) Av. Pedro Montt 2136 8370899 Santiago Chile
| | - María B Camarada
- Centro de Nanotecnología Aplicada, Facultad de Ciencias, Universidad Mayor Santiago 8580745 Chile .,Núcleo de Química y Bioquímica, Facultad de Estudios Interdisciplinarios, Universidad Mayor Santiago 8580745 Chile
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14
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Zhang W, Jiang B, Ma X, Wang J, Liu J, Wu R, Zheng Z, Liu J, Ma K. Controllable synthesis of multi-shelled NiCo 2O 4 hollow spheres catalytically for the thermal decomposition of ammonium perchlorate. RSC Adv 2019; 9:23888-23893. [PMID: 35530635 PMCID: PMC9069533 DOI: 10.1039/c9ra03865e] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2019] [Accepted: 07/17/2019] [Indexed: 12/02/2022] Open
Abstract
The compatible catalytic structure of NiCo2O4 was modified into multi-shelled hollow spheres by one-pot synthesis, followed by heat treatment. X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and Brunauer–Emmet–Teller (BET) and N2 adsorption–desorption approaches were used for the characterizations of nanoparticles and multi-shelled hollow porous structures and the morphologies and crystal structures of these hollow spheres, respectively. Differential scanning calorimetry (DSC) was adopted for comparing the thermal decomposition performances of ammonium perchlorate (AP) catalyzed by adding different contents of multi-shelled NiCo2O4 hollow spheres. Impressively, the experimental results showed that the NiCo2O4 hollow spheres exhibited more excellent catalytic activity than NiCo2O4 nanoparticles as a result of their large specific surface areas, good adsorption capacity and many active reduction sites. The decomposition temperature of AP with multi-shelled NiCo2O4 hollow spheres could be reduced up to 322.3 °C from 416.3 °C. Furthermore, a catalytic mechanism was proposed for the thermal decomposition of AP over multi-shelled NiCo2O4 hollow spheres based on electron transfer processes. Double-shelled NiCo2O4 hollow spheres synthesized by a facile hydro-thermal method showed excellent catalytic properties for the thermal decomposition of AP.![]()
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Affiliation(s)
- Wenchao Zhang
- School of Chemical Engineering, Nanjing University of Science and Technology Nanjing 210094 China
| | - Bin Jiang
- School of Chemical Engineering, Nanjing University of Science and Technology Nanjing 210094 China
| | - Xiaohang Ma
- School of Chemical Engineering, Nanjing University of Science and Technology Nanjing 210094 China
| | - Jiaxin Wang
- School of Chemical Engineering, Nanjing University of Science and Technology Nanjing 210094 China
| | - Jiaqi Liu
- The First Academy of China Aerospace Science and Technology Corporation Beijing 100048 China
| | - Runhui Wu
- National Key Laboratory on Science and Technology on Test Physics and Numerical Mathematics Beijing 100076 China
| | - Zilong Zheng
- School of Chemical Engineering, Nanjing University of Science and Technology Nanjing 210094 China
| | - Jingping Liu
- School of Chemical Engineering, Nanjing University of Science and Technology Nanjing 210094 China
| | - Kefeng Ma
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology Nanjing 210094 China
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