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Gogoi A, Neyts EC, Peeters FM. Reduction-enhanced water flux through layered graphene oxide (GO) membranes stabilized with H 3O + and OH - ions. Phys Chem Chem Phys 2024; 26:10265-10272. [PMID: 38497764 DOI: 10.1039/d3cp04097f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/19/2024]
Abstract
Graphene oxide (GO) is one of the most promising candidates for next generation of atomically thin membranes. Nevertheless, one of the major issues for real world application of GO membranes is their undesirable swelling in an aqueous environment. Recently, we demonstrated that generation of H3O+ and OH- ions (e.g., with an external electric field) in the interlayer gallery could impart aqueous stability to the layered GO membranes (A. Gogoi, ACS Appl. Mater. Interfaces, 2022, 14, 34946). This, however, compromises the water flux through the membrane. In this study, we report on reducing the GO nanosheets as a solution to this issue. With the reduction of the GO nanosheets, the water flux through the layered GO membrane initially increases and then decreases again beyond a certain degree of reduction. Here, two key factors are at play. Firstly, the instability of the H-bond network between water molecules and the GO nanosheets, which increases the water flux. Secondly, the pore size reduction in the interlayer gallery of the membranes, which decreases the water flux. We also observe a significant improvement in the salt rejection of the membranes, due to the dissociation of water molecules in the interlayer gallery. In particular, for the case of 10% water dissociation, the water flux through the membranes can be enhanced without altering its selectivity. This is an encouraging observation as it breaks the traditional tradeoff between water flux and salt rejection of a membrane.
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Affiliation(s)
- Abhijit Gogoi
- PLASMANT, Department of Chemistry, University of Antwerp, Antwerp 2610, Belgium.
- Department of Physics, University of Antwerp, Antwerp 2020, Belgium
| | - Erik C Neyts
- PLASMANT, Department of Chemistry, University of Antwerp, Antwerp 2610, Belgium.
- NANOlab Center of Excellence, University of Antwerp, Belgium
| | - François M Peeters
- Department of Physics, University of Antwerp, Antwerp 2020, Belgium
- Departamento de Fisica, Caixa Postal 6030, Universidade Federal do Ceará, Fortaleza 60455-70, Ceará, Brazil
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Tu Y, Li C, Shi Y, Jiang Y, Xiao W, Zhu S, Lv P, Yan X. Low-temperature molten salt synthesis and catalytic mechanism of CoS 2/NC as an advanced bifunctional electrocatalyst. Dalton Trans 2023. [PMID: 37486320 DOI: 10.1039/d3dt01694c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/25/2023]
Abstract
The development of productive and sustainable bifunctional electrocatalysts for the oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) plays an important role in the commercial evolution of metal-air batteries. In this paper, a low-temperature molten salt template method was adopted to synthesize the composite of CoS2 and nitrogen-doped carbon (CoS2/NC) without the protection of inert gas. The structural characterization studies show that the specific surface area (SSA) and crystal growth kinetics are increased and effectively improved, respectively, by the composite of CoS2 and NC. The as-synthesized CoS2/NC composite demonstrates outstanding bifunctional catalytic activity in alkaline electrolytes and exhibits a half-wave potential (E1/2) of 0.854 V (vs. RHE) and an overpotential of only 220 mV for the OER at a current density of 10 mA cm-2 (η10). Simultaneously, CoS2/NC also exhibits excellent electrochemical stability. Additionally, density functional theory (DFT) calculations have manifested that the synergistic effect of CoS2 and NC results in a remarkable enhancement in the bifunctional catalytic performance of the composite materials. This study offers a new pathway and theoretical guidance for the fabrication of efficient bifunctional electrocatalysts.
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Affiliation(s)
- Yuankun Tu
- College of Chemistry and Environmental Engineering, Yangtze University, Jingzhou, 434023 Hubei, PR China.
| | - Chuanhua Li
- College of Chemistry and Environmental Engineering, Yangtze University, Jingzhou, 434023 Hubei, PR China.
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, PR China
- State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering, Ningxia University, Yinchuan 750021, PR China
| | - Yubao Shi
- College of Chemistry and Environmental Engineering, Yangtze University, Jingzhou, 434023 Hubei, PR China.
| | - Yu Jiang
- College of Chemistry and Environmental Engineering, Yangtze University, Jingzhou, 434023 Hubei, PR China.
| | - Wei Xiao
- College of Chemistry and Environmental Engineering, Yangtze University, Jingzhou, 434023 Hubei, PR China.
| | - Shenghua Zhu
- College of Chemistry and Environmental Engineering, Yangtze University, Jingzhou, 434023 Hubei, PR China.
- State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering, Ningxia University, Yinchuan 750021, PR China
| | - Peng Lv
- State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering, Ningxia University, Yinchuan 750021, PR China
| | - Xuemin Yan
- College of Chemistry and Environmental Engineering, Yangtze University, Jingzhou, 434023 Hubei, PR China.
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Li G, Xu C, Xu H, Gan L, Sun K, Yuan B. Tunable graphene oxide for the low-fouling electrochemical sensing of uric acid in human serum. Analyst 2023; 148:2553-2563. [PMID: 37157878 DOI: 10.1039/d3an00291h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
Numerous studies have been reported to improve the selectivity of uric acid (UA) by eliminating the interference from other electroactive species that coexist in biological fluids. However, two main challenges associated with the nonenzymatic electrochemical detection of UA need to be overcome to achieve practical applications in biological samples. Those are the chemical fouling of electrodes caused by the oxidation product of UA and biofouling due to the non-specific absorption of biological macromolecules. It was found that the residual oxo-functional groups and defects on graphene played a crucial part in both electrocatalysis and anti-biofouling. Here, graphene oxide (GO) was tuned by electro-oxidation and electro-reduction and was investigated in antifouling and electrocatalytic performances for the electrochemical sensing of UA by using pristine GO, BSA bound GO, electro-reduction-treated GO and electro-oxidation-treated GO. The electro-oxidation-treated GO was explored in electrochemical sensing for the first time and exhibited the highest sensitivity and low fouling properties. Holey GO might be formed on the electrode surface by the electrochemical oxidation method in a mild and green solution without the use of an acid. The different electrode interfaces as well as the interaction with BSA were investigated by Raman spectroscopy, X-ray photoelectron spectroscopy, contact angle measurements, scanning electron microscopy, electrochemistry, and electrochemical impedance spectroscopy.
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Affiliation(s)
- Gang Li
- School of Chemistry and Materials Science, Ludong University, Yantai 264025, China.
| | - Chunying Xu
- School of Chemistry and Materials Science, Ludong University, Yantai 264025, China.
| | - Hui Xu
- Huzhou Key Laboratory of Green Energy Materials and Battery Cascade Utilization, School of Intelligent Manufacturing, Huzhou College, Huzhou, 313000, P.R. China
| | - Liju Gan
- School of Chemistry and Materials Science, Ludong University, Yantai 264025, China.
| | - Kai Sun
- College of Chemistry and Chemical Engineering, Yantai University, Yantai, Shandong 264005, P. R. China
| | - Baiqing Yuan
- School of Chemistry and Materials Science, Ludong University, Yantai 264025, China.
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Malinský P, Romanenko O, Havránek V, Cutroneo M, Novák J, Štěpanovská E, Mikšová R, Marvan P, Mazánek V, Sofer Z, Macková A. Graphene Oxide and Polymer Humidity Micro-Sensors Prepared by Carbon Beam Writing. Polymers (Basel) 2023; 15. [PMID: 36904307 DOI: 10.3390/polym15051066] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 02/10/2023] [Accepted: 02/16/2023] [Indexed: 02/25/2023] Open
Abstract
In this study, novel flexible micro-scale humidity sensors were directly fabricated in graphene oxide (GO) and polyimide (PI) using ion beam writing without any further modifications, and then successfully tested in an atmospheric chamber. Two low fluences (3.75 × 1014 cm-2 and 5.625 × 1014 cm-2) of carbon ions with an energy of 5 MeV were used, and structural changes in the irradiated materials were expected. The shape and structure of prepared micro-sensors were studied using scanning electron microscopy (SEM). The structural and compositional changes in the irradiated area were characterized using micro-Raman spectroscopy, X-ray photoelectron spectroscopy (XPS), Rutherford back-scattering spectroscopy (RBS), energy-dispersive X-ray spectroscopy (EDS), and elastic recoil detection analysis (ERDA) spectroscopy. The sensing performance was tested at a relative humidity (RH) ranging from 5% to 60%, where the electrical conductivity of PI varied by three orders of magnitude, and the electrical capacitance of GO varied in the order of pico-farads. In addition, the PI sensor has proven long-term sensing stability in air. We demonstrated a novel method of ion micro-beam writing to prepare flexible micro-sensors that function over a wide range of humidity and have good sensitivity and great potential for widespread applications.
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Gao F, Zhang L, Yang L, Zhou X, Zhang Y. Structural Properties of Graphene Oxide Prepared from Graphite by Three Different Methods and the Effect on Removal of Cr(VI) from Aqueous Solution. Nanomaterials (Basel) 2023; 13:nano13020279. [PMID: 36678032 PMCID: PMC9867312 DOI: 10.3390/nano13020279] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Revised: 12/25/2022] [Accepted: 01/04/2023] [Indexed: 05/27/2023]
Abstract
Herein, three types of graphene oxides (GOs, GO-M1, GO-M2 and GO-M3) have been successfully prepared from graphite by three different methods and utilized for the removal of Cr(VI) from aqueous solutions. Further, the effects of initial concentration and pH, adsorbent dosage, contact time and temperature on the adsorption performance of GOs were investigated by batch adsorption experiments. Furthermore, the adsorption mechanisms for Cr(VI) adsorption by GOs are mainly the redox reaction and electrostatic attraction, while there are also pore filling, ion exchange and complexation involved in these adsorption processes. The adsorption kinetic and isotherm data indicate that these adsorption processes of GOs on Cr(VI) are dominantly monolayer chemisorption and equilibrium can be reached in 30 min. The saturation adsorption capacities (Qm, 298.15 K) of GO-M1, GO-M2 and GO-M3 for Cr(VI) are estimated to be 3.5412 mg⋅g-1, 2.3631 mg⋅g-1 and 7.0358 mg⋅g-1, respectively. Moreover, the adsorption thermodynamic study showed that these adsorption processes of Cr(VI) by the three types of GOs at 298.15 K to 323.15 K are endothermic, entropy-driven and thermodynamically spontaneous and feasible. Overall, these findings provided vital insights into the mechanism and application of Cr(VI) removal by GOs.
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Affiliation(s)
- Feng Gao
- State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China
- Key Laboratory of Yangtze Water Environment for Ministry of Education, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China
- Shanghai Institute of Pollution Control and Ecological Security, Tongji University, Shanghai 200092, China
| | - Lei Zhang
- State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China
- Key Laboratory of Yangtze Water Environment for Ministry of Education, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China
| | - Libin Yang
- State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China
- Key Laboratory of Yangtze Water Environment for Ministry of Education, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China
- Shanghai Institute of Pollution Control and Ecological Security, Tongji University, Shanghai 200092, China
| | - Xuefei Zhou
- State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China
- Key Laboratory of Yangtze Water Environment for Ministry of Education, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China
- Shanghai Institute of Pollution Control and Ecological Security, Tongji University, Shanghai 200092, China
| | - Yalei Zhang
- State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China
- Key Laboratory of Yangtze Water Environment for Ministry of Education, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China
- Shanghai Institute of Pollution Control and Ecological Security, Tongji University, Shanghai 200092, China
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Jovanović Z, Gloginjić M, Mravik Ž, Olejniczak A, Bajuk-bogdanović D, Jovanović S, Pašti I, Skuratov V. Mechanistic insights into ion-beam induced reduction of graphene oxide: An experimental and theoretical study. Radiat Phys Chem Oxf Engl 1993 2022; 199:110355. [DOI: 10.1016/j.radphyschem.2022.110355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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7
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Fan L, Xu J, Hong Y. Defects in graphene-based heterostructures: topological and geometrical effects. RSC Adv 2022; 12:6772-6782. [PMID: 35424609 PMCID: PMC8982235 DOI: 10.1039/d1ra08884j] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Accepted: 01/31/2022] [Indexed: 12/25/2022] Open
Abstract
The combination of graphene (Gr) and graphene-like materials provides the possibility of using two-dimensional (2D) atomic layer building blocks to create unprecedented architectures. The most attractive characteristics are strongly dependent on the various spatial structures, mainly including in-plane heterostructures butt-joined at the side of an atomic monolayer through covalent bonds, van der Waals (vdW) heterostructures involving a vertically stacked hybrid structure, and their combinations. Heterostructures can not only overcome the limitations inherent to each material but may also obtain new features by appropriate material combination. However, heterostructures made of vdW force superposition or covalent bond splicing are prone to defects. The introduction of external and internal defects causes local deformation and stress in the material, thereby affecting the physical properties of the material, such as its transport properties and mechanical properties. Therefore, research, utilization and control of these defects are highly critical. This paper reviews the vacancy, topological and geometrical effects of defects in modulating the structures and mechanical responses of Gr-based heterostructures. Moreover, the coupling effects of various defects on the Gr-based heterostructures in multi-physics fields are also discussed. This work aims to improve the understanding of the physical mechanism of defective configurations and their association in low dimensions, so as to realize various configurations and to aid the search for new usages. The combination of graphene (Gr) and graphene-like materials provides the possibility of using two-dimensional (2D) atomic layer building blocks to create unprecedented architectures.![]()
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Affiliation(s)
- Lei Fan
- School of Civil Engineering and Architecture, Zhejiang University of Science & Technology, Hangzhou, PR China
| | - Jin Xu
- School of Civil Engineering and Architecture, Zhejiang University of Science & Technology, Hangzhou, PR China
| | - Yihong Hong
- Shanghai Urban Construction Vocational College, Shanghai, China
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Catania F, Marras E, Giorcelli M, Jagdale P, Lavagna L, Tagliaferro A, Bartoli M. A Review on Recent Advancements of Graphene and Graphene-Related Materials in Biological Applications. Applied Sciences 2021; 11:614. [DOI: 10.3390/app11020614] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Graphene is the most outstanding material among the new nanostructured carbonaceous species discovered and produced. Graphene’s astonishing properties (i.e., electronic conductivity, mechanical robustness, large surface area) have led to a deep change in the material science field. In this review, after a brief overview of the main characteristics of graphene and related materials, we present an extensive overview of the most recent achievements in biological uses of graphene and related materials.
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Nebogatikova NA, Antonova IV, Ivanov AI, Demin VA, Kvashnin DG, Olejniczak A, Gutakovskii AK, Kornieieva KA, Renault PLJ, Skuratov VA, Chernozatonskii LA. Fluorinated graphene nanoparticles with 1-3 nm electrically active graphene quantum dots. Nanotechnology 2020; 31:295602. [PMID: 32213679 DOI: 10.1088/1361-6528/ab83b8] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
A new approach to creating a new and locally nanostructured graphene-based material is reported. We studied the electric and structural properties of partially fluorinated graphene (FG) films obtained from an FG-suspension and nanostructured by high-energy Xe ions. Local shock heating in ion tracks is suggested to be the main force driving the changes. It was found that ion irradiation leads to the formation of locally thermally expanded FG and its cracking into nanoparticles with small (∼1.5-3 nm) graphene quantum dots (GQD), embedded in them. The bandgap of GQD was estimated as 1 -1.5 eV. A further developed approach was applied to correct the functional properties of printed FG-based crossbar memristors. Dielectric FG films with small quantum dots may offer prospects in graphene-based electronics due to their stability and promising properties.
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Affiliation(s)
- Nadezhda A Nebogatikova
- Rzhanov Institute of Semiconductor Physics of the Siberian Branch of the RAS, Novosibirsk, Russia. Novosibirsk State University, Novosibirsk, Russia
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10
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Filip J, Wechsler P, Stastny J, Malkova V, Minarik A, Vinter S, Osicka J. Simplified synthesis of silver nanoparticles on graphene oxide and their applications in electrocatalysis. Nanotechnology 2020; 32:025502. [PMID: 32932247 DOI: 10.1088/1361-6528/abb8a4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
In this work the possibility of synthesizing in situ silver nanoparticles (AgNPs) on graphene oxide (GO) surfaces without commonly used additional reducing or alkalizing agents or increased temperature was investigated. Using diverse microscopic (atomic force microscopy, transmission electron microscopy) and spectroscopic methods, it was proved that very small AgNPs were formed on GO by simple incubation for 2 h in a mixture of GO dispersion and AgNO3. The prepared nanomaterial (GO_Ag) was also assessed using electrochemical methods, and it exhibited electrochemical behavior similar to the GO_Ag nanomaterial prepared with a help of citric acid as a reducing agent. Furthermore, it was found that (i) the electrochemical reduction of the GO_Ag on the electrode surface decreased the voltammetric response even though this step increased the surface conductivity and (ii) GO_Ag can be employed for the sensing of chlorides with a detection limit of 79 μM and a linear range of up to 10 mM. It could also provide an electrochemical response toward the chloroacetanilide herbicide metazachlor. Hence, the reducing capabilities of GO were proved to be applicable for in situ synthesis of metal nanoparticles with the highest possible simplification, and the as-prepared nanomaterials could be employed for fabrication of different electrochemical sensors.
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Affiliation(s)
- Jaroslav Filip
- Department of Environmental Protection Engineering, Faculty of Technology, Tomas Bata University in Zlín, Vavrečkova 275, Zlín 76001, Czech Republic
| | - Philipp Wechsler
- Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir-Prelog-Weg 1, CH-8093, Zürich, Switzerland
| | - Josef Stastny
- Department of Environmental Protection Engineering, Faculty of Technology, Tomas Bata University in Zlín, Vavrečkova 275, Zlín 76001, Czech Republic
| | - Veronika Malkova
- Department of Environmental Protection Engineering, Faculty of Technology, Tomas Bata University in Zlín, Vavrečkova 275, Zlín 76001, Czech Republic
| | - Antonin Minarik
- Department of Physics and Materials Engineering, Faculty of Technology, Tomas Bata University in Zlín, Vavrečkova 275, 76001 Zlín, Czech Republic
- Centre of Polymer Systems, Tomas Bata University in Zlín, Třída Tomáše Bati 5678, 76001 Zlín, Czech Republic
| | - Stepan Vinter
- Department of Environmental Protection Engineering, Faculty of Technology, Tomas Bata University in Zlín, Vavrečkova 275, Zlín 76001, Czech Republic
| | - Josef Osicka
- Centre of Polymer Systems, Tomas Bata University in Zlín, Třída Tomáše Bati 5678, 76001 Zlín, Czech Republic
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Torrisi L, Havranek V, Cutroneo M, Mackova A, Silipigni L, Torrisi A. Characterization of reduced Graphene oxide films used as stripper foils in a 3.0-Mv Tandetron. Radiat Phys Chem Oxf Engl 1993 2019. [DOI: 10.1016/j.radphyschem.2019.108397] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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12
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Romanenko O, Havranek V, Mackova A, Davidkova M, Cutroneo M, Ponomarev AG, Nagy G, Stammers J. Performance and application of heavy ion nuclear microbeam facility at the Nuclear Physics Institute in Řež, Czech Republic. Rev Sci Instrum 2019; 90:013701. [PMID: 30709223 DOI: 10.1063/1.5070121] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2018] [Accepted: 12/12/2018] [Indexed: 06/09/2023]
Abstract
The Tandetron Laboratory of the Nuclear Physics Institute of the Czech Academy of Sciences is equipped with five beam lines associated with a 3 MV tandem electrostatic accelerator model 4130 MC from High Voltage Engineering Europa B.V. This accelerator is coupled with two duoplasmatron sources and a single sputter ion source and provides ions from hydrogen to gold. One of these lines is a nuclear microbeam facility, utilizing ion beams of micro- and sub-micro sizes for materials research by use of particle induced x-ray emission spectroscopy, particle induced gamma emission, Rutherford back-scattering spectroscopy, and scanning transmission ion microscopy methods as well as for ion beam writing. The major advantage of the presented microprobe is a possibility of 3D structure creation not only in polymer materials using light ions but also in other materials such as glass, ceramics, etc. by use of heavy ions. The focusing system allows focusing of charged particles with a maximum rigidity of 11 MeV amu/q2. The usual resolution in high and low current modes is 2 × 3 µm2 for a 100 pA and 0.3 × 0.5 µm2 for the 2000 ions/s of 2 MeV protons, respectively. A detailed facility description is given in the paper. The applications of focused beams of heavy ions as well as examples of light ions utilizing are also presented in the article.
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Affiliation(s)
- Oleksandr Romanenko
- Nuclear Physics Institute of the Czech Academy of Sciences, Řež 250 68, Czech Republic
| | - Vladimir Havranek
- Nuclear Physics Institute of the Czech Academy of Sciences, Řež 250 68, Czech Republic
| | - Anna Mackova
- Nuclear Physics Institute of the Czech Academy of Sciences, Řež 250 68, Czech Republic
| | - Marie Davidkova
- Nuclear Physics Institute of the Czech Academy of Sciences, Řež 250 68, Czech Republic
| | - Mariapompea Cutroneo
- Nuclear Physics Institute of the Czech Academy of Sciences, Řež 250 68, Czech Republic
| | - Alexander G Ponomarev
- Institute of Applied Physics, National Academy of Sciences of Ukraine, Sumy 40030, Ukraine
| | - Gyula Nagy
- Institute for Nuclear Research, Hungarian Academy of Sciences (MTA Atomki), Bem tér 18/c, Debrecen H-4026, Hungary
| | - James Stammers
- Nuclear Physics Institute of the Czech Academy of Sciences, Řež 250 68, Czech Republic
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13
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Zhen X, Huang Y, Yang S, Feng Z, Ba D, Zhuang J, Wang Y, Qin X. The effect of proton irradiation on the properties of a graphene oxide paper. RSC Adv 2019; 9:30519-30525. [PMID: 35530247 PMCID: PMC9072190 DOI: 10.1039/c9ra05389a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2019] [Accepted: 08/19/2019] [Indexed: 01/15/2023] Open
Abstract
A graphene oxide paper (GOP) was irradiated with 500 keV proton for total fluence of 2 × 1013 cm−2 to 2 × 1015 cm−2 in a ground-based irradiation simulator. The spacing of layer, surface chemical composition, structural defects, thermal conductivity and electrical property of the GOP before and after irradiation was measured. The results indicated that the spacing of layer decreased after irradiation. The ratio of total carbon atom and total oxygen atom increased from 2.40 to 4.31 as well as the sp2 hybridized carbons obviously increased after 2 × 1015 cm−2 irradiation. The XPS analysis suggested the occurrence of reduction, and the Raman spectra indicated that the defects were produced after proton irradiation. Furthermore, the thermal conductivity of GOP decreased, and then increased smoothly as the irradiation fluences were increased, and the electrical property showed the similar trend. The change in the thermal and electrical properties for GOP could be attributed to the defects and the removal of oxygen-containing functional groups, which lead to the phonon conduct path and scattering centers changed under proton irradiation. This study could promote the application of GOP in future space expeditions. The 500 keV proton irradiaiton effect on a graphene oxide paper was studied in a ground-based irradiation simulator.![]()
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Affiliation(s)
| | | | - Shengsheng Yang
- Lanzhou Institute of Physics
- China
- National Key Laboratory of Materials Behavior and Evaluation Technology in Space Environment
- China
| | - Zhanzu Feng
- National Key Laboratory of Materials Behavior and Evaluation Technology in Space Environment
- China
| | - Dedong Ba
- Lanzhou Institute of Physics
- China
- Science and Technology on Vacuum Technology and Physics Laboratory
- China
| | - Jianhong Zhuang
- Lanzhou Institute of Physics
- China
- Science and Technology on Vacuum Technology and Physics Laboratory
- China
| | - Yi Wang
- Lanzhou Institute of Physics
- China
| | - Xiaogang Qin
- Lanzhou Institute of Physics
- China
- Science and Technology on Vacuum Technology and Physics Laboratory
- China
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14
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Malinský P, Cutroneo M, Macková A, Hnatowicz V, Szökölová K, Bohačová M, Luxa J, Sofer Z. Graphene oxide layers modified by irradiation with 1.0 MeV Au+
ions. SURF INTERFACE ANAL 2018. [DOI: 10.1002/sia.6475] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Petr Malinský
- Institute of Nuclear Physics of CAS; v.v.i., Husinec-Řež 130 250 68 Řež Czech Republic
- Department of Physics, Faculty of Science; J.E. Purkinje University; České mládeže 8 400 96 Usti nad Labem Czech Republic
| | - Mariapompea Cutroneo
- Institute of Nuclear Physics of CAS; v.v.i., Husinec-Řež 130 250 68 Řež Czech Republic
| | - Anna Macková
- Institute of Nuclear Physics of CAS; v.v.i., Husinec-Řež 130 250 68 Řež Czech Republic
- Department of Physics, Faculty of Science; J.E. Purkinje University; České mládeže 8 400 96 Usti nad Labem Czech Republic
| | - Vladimir Hnatowicz
- Institute of Nuclear Physics of CAS; v.v.i., Husinec-Řež 130 250 68 Řež Czech Republic
| | - Kateřina Szökölová
- Department of Inorganic Chemistry; University of Chemistry and Technology Prague; Technická 5 166 28 Prague 6 Czech Republic
| | - Marie Bohačová
- Department of Inorganic Chemistry; University of Chemistry and Technology Prague; Technická 5 166 28 Prague 6 Czech Republic
| | - Jan Luxa
- Department of Inorganic Chemistry; University of Chemistry and Technology Prague; Technická 5 166 28 Prague 6 Czech Republic
| | - Zdeněk Sofer
- Department of Inorganic Chemistry; University of Chemistry and Technology Prague; Technická 5 166 28 Prague 6 Czech Republic
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Cutroneo M, Torrisi L, Badziak J, Rosinski M, Havranek V, Mackova A, Malinsky P, Sofer Z, Luxa J, Cannavò A, Lorincik J. Graphite oxide based targets applied in laser matter interaction. EPJ Web of Conferences 2018. [DOI: 10.1051/epjconf/201816702004] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
In the present work, we propose the production of a hybrid graphene based material suitable to be laser irradiated with the aim to produce quasi-monoenergetic proton beams using a femtosecond laser system. The unique lattice structure of the irradiated solid thin target can affect the inside electron propagation, their outgoing from the rear side of a thin foil, and subsequently the plasma ion acceleration. The produced targets, have been characterized in composition, roughness and structure and for completeness irradiated. The yield and energy of the ions emitted from the laser-generated plasma have been monitored and the emission of proton stream profile exhibited an acceleration of the order of several MeVs/charge state.
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Malinský P, Macková A, Cutroneo M, Siegel J, Bohačová M, Klímova K, Švorčík V, Sofer Z. Laser modification of graphene oxide layers. EPJ Web of Conferences 2018. [DOI: 10.1051/epjconf/201816704010] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
The effect of linearly polarized laser irradiation with various energy densities was successfully used for reduction of graphene oxide (GO). The ion beam analytical methods (RBS, ERDA) were used to follow the elemental composition which is expected as the consequence of GO reduction. The chemical composition analysis was accompanied by structural study showing changed functionalities in the irradiated GO foils using spectroscopy techniques including XPS, FTIR and Raman spectroscopy. The AFM was employed to identify the surface morphology and electric properties evolution were subsequently studied using standard two point method measurement. The used analytical methods report on reduction of irradiated graphene oxide on the surface and the decrease of surface resistivity as a growing function of the laser beam energy density.
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