1
|
Zhang S, Wu C, Zhao Z, Xu K. An Electrochemical Immunosensor Based on Chitosan- Graphene Nanosheets for Aflatoxin B1 Detection in Corn. Molecules 2024; 29:1461. [PMID: 38611741 PMCID: PMC11013039 DOI: 10.3390/molecules29071461] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Revised: 03/17/2024] [Accepted: 03/20/2024] [Indexed: 04/14/2024] Open
Abstract
We reported a highly efficient electrochemical immunosensor utilizing chitosan-graphene nanosheets (CS-GNs) nanocomposites for the detection of aflatoxin B1 (AFB1) in corn samples. The CS-GNs nanocomposites, serving as a modifying layer, provide a significant specific surface area and biocompatibility, thereby enhancing both the electron transfer rate and the efficiency of antibody immobilization. The electrochemical characterization was conducted utilizing both differential pulse voltammetry (DPV) and electrochemical impedance spectroscopy (EIS). Moreover, the antibody concentration, pH, antibody immobilization time, and immunoreaction time, were optimized. The results showed that the current change (ΔI) before and after the immunoreaction demonstrated a strong linear relationship (R2=0.990) with the AFB1 concentration, as well as good specificity and stability. The linear range extended from 0.05 to 25 ng/mL, with a detection limit of 0.021 ng/mL (S/N=3). The immunosensor exhibited a recovery rate ranging from 97.3% to 101.4% in corn samples, showing a promising performance using an efficient method, and indicating a remarkable prospect for the detection of fungal toxins in grains.
Collapse
Affiliation(s)
- Shuai Zhang
- Key Laboratory of Grain Information Processing and Control (Henan University of Technology), Ministry of Education, Zhengzhou 450001, China;
- Henan Key Laboratory of Grain Photoelectric Detection and Control, Henan University of Technology, Zhengzhou 450001, China
- College of Electrical Engineering, Henan University of Technology, Zhengzhou 450001, China;
| | - Caizhang Wu
- College of Electrical Engineering, Henan University of Technology, Zhengzhou 450001, China;
| | - Zhike Zhao
- College of Electrical Engineering, Henan University of Technology, Zhengzhou 450001, China;
| | - Kun Xu
- Key Laboratory of Grain Information Processing and Control (Henan University of Technology), Ministry of Education, Zhengzhou 450001, China;
- Henan Key Laboratory of Grain Photoelectric Detection and Control, Henan University of Technology, Zhengzhou 450001, China
- College of Electrical Engineering, Henan University of Technology, Zhengzhou 450001, China;
| |
Collapse
|
2
|
Verma AK, Singh J, Nguyen-Tri P. Gold-Deposited Graphene Nanosheets for Self-Cleaning Graphene Surface-Enhanced Raman Spectroscopy with Superior Charge-Transfer Contribution. ACS Appl Mater Interfaces 2024; 16:10969-10983. [PMID: 38355426 DOI: 10.1021/acsami.3c17303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/16/2024]
Abstract
The interaction of graphene with metals initiates charge-transfer interaction-induced chemical enhancements, which critically depend on the doping effect from deposited metallic configurations. In this paper, we have explored the gold nanoparticle-decorated monolayer graphene nanosheets for the large graphene-induced Raman enhancement of adsorbed analytes, indicating the surface-enhanced Raman spectroscopy (SERS) capabilities of metal-doped graphene (G-SERS). Here, the systematically sputtered Au thickness optimization procedure revealed noticeable modifications in the graphene Raman spectra and photoluminescence (PL) background quenching, which indicated favorable charge transfer through n-type doping of chemical vapor deposition-grown graphene nanosheets. The highly consistent, individually distributed morphology of the gold nanoislands over graphene nanosheets depicted a reproducibly uniform G-SERS signal with excellent relative standard deviation values (<5%), resulting in the strongest Raman intensity enhancement factors of ∼108 (MB) (methylene blue) and 107 (DPA) (2,6-pyridinedicarboxylic acid) composed of the weakest PL background. The combined charge-transfer-induced chemical enhancement and electromagnetic enhancement from individual Au nanoislands result in a lowering of detectability down to 10-16 M (MB) and 10-11 M (DPA) concentrations with efficient time-dependent signal stability. Additionally, the GAu demonstrated its effective (∼94.4%) photocatalytic degradation capabilities by decomposing MB dye molecules from a concentration of 1 μM to 2.52 fM within 60 min. Therefore, the prominent charge-transfer contribution through controlled Au decoration over graphene nanosheets provides a potential strategy for fabricating superior SERS sensors and photocatalysts exhibiting adequate signal consistency, stability, and photodegradation efficiency through overcoming the limitations of the traditional sensing platforms.
Collapse
Affiliation(s)
- Ashwani Kumar Verma
- Department of Physics, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Jaspal Singh
- Laboratory of Advanced Materials for Energy and Environment, Université Du Québec à Trois-Rivières (UQTR), 3351, Boul. des Forges, C.P. 500, Trois-Rivières, Québec G9A 5H7, Canada
| | - Phuong Nguyen-Tri
- Laboratory of Advanced Materials for Energy and Environment, Université Du Québec à Trois-Rivières (UQTR), 3351, Boul. des Forges, C.P. 500, Trois-Rivières, Québec G9A 5H7, Canada
| |
Collapse
|
3
|
Wang C, Zhu X, Fan Y, Liu J, Xie L, Jiang C, Xiao X, Wu P, You X. Microstructure and Properties of Aluminum-Graphene-SiC Matrix Composites after Friction Stir Processing. Materials (Basel) 2024; 17:979. [PMID: 38473452 DOI: 10.3390/ma17050979] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Revised: 02/13/2024] [Accepted: 02/19/2024] [Indexed: 03/14/2024]
Abstract
Enhancing the mechanical properties of conventional ceramic particles-reinforced aluminum (Al 1060) metal matrix composites (AMCs) with lower detrimental phases is difficult. In this research work, AMCs are reinforced with graphene nanosheet (GNS) and hybrid reinforcement (GNS combined with 20% SiC, synthesized by shift-speed ball milling (SSBM), and further fabricated by two-pass friction stir processing (FSP). The effect of GNS content and the addition of SiC on the microstructure and mechanical properties of AMCs are studied. The microstructure, elemental, and phase composition of the developed composite are examined using SEM, EDS, and XRD techniques, respectively. Mechanical properties such as hardness, wear, and tensile strength are analyzed. The experimental results show that the GNS and the SiC are fairly distributed in the Al matrix via SSBM, which is beneficial for the mechanical properties of the composites. The maximum tensile strength of the composites is approximately 171.3 MPa in AMCs reinforced by hybrid reinforcements. The tensile strength of the GNS/Al composites increases when the GNS content increases from 0 to 1%, but then reduces with the further increase in GNS content. The hardness increases by 2.3%, 24.9%, 28.9%, and 41.8% when the Al 1060 is reinforced with 0.5, 1, 2% GNS, and a hybrid of SiC and GNS, respectively. The SiC provides further enhancement of the hardness of AMCs reinforced by GNS. The coefficient of friction decreases by about 7%, 13%, and 17% with the reinforcement of 0.5, 1, and 2% GNS, respectively. Hybrid reinforcement has the lowest friction coefficient (0.41). The decreasing friction coefficient contributes to the self-lubrication of GNSs, the reduction in the contact area with the substrate, and the load-bearing ability of ceramic particles. According to this study, the strengthening mechanisms of the composites may be due to thermal mismatch, grain refinement, and Orowan looping. In summary, such hybrid reinforcements effectively improve the mechanical and tribological properties of the composites.
Collapse
Affiliation(s)
- Chen Wang
- School of Mechanical and Aerospace Engineering, Jilin University, Changchun 130022, China
| | - Xianyong Zhu
- School of Mechanical and Aerospace Engineering, Jilin University, Changchun 130022, China
- Chongqing Research Institute, Jilin University, Chongqing 401123, China
| | - Yuexiang Fan
- School of Mechanical and Aerospace Engineering, Jilin University, Changchun 130022, China
| | - Jiaan Liu
- College of Materials Science and Engineering, Jilin University, Changchun 130022, China
| | - Liangwen Xie
- School of Mechanical and Aerospace Engineering, Jilin University, Changchun 130022, China
| | - Cheng Jiang
- School of Mechanical and Aerospace Engineering, Jilin University, Changchun 130022, China
| | - Xiong Xiao
- School of Mechanical and Aerospace Engineering, Jilin University, Changchun 130022, China
| | - Peng Wu
- Changchun Baoze Technology Co., Ltd., Changchun 130051, China
| | - Xiangmi You
- CISDI Chongqing Iron & Steelmaking Plant Integration Co., Ltd., No.11 Huijin Road North New Zone, Chongqing 401122, China
| |
Collapse
|
4
|
Dang VD, Putikam R, Lin MC, Wei KH. MoS 2 Nanoflowers Grown on Plasma-Induced W-Anchored Graphene for Efficient and Stable H 2 Production Through Seawater Electrolysis. Small 2024; 20:e2305220. [PMID: 37658516 DOI: 10.1002/smll.202305220] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 08/07/2023] [Indexed: 09/03/2023]
Abstract
Herein, it is found that 3D transition metal dichalcogenide (TMD)-MoS2 nanoflowers-grown on 2D tungsten oxide-anchored graphene nanosheets (MoS2 @W-G) functions as a superior catalyst for the hydrogen evolution reaction (HER) under both acidic and alkaline conditions. The optimized weight ratio of MoS2 @W-G (MoS2 :W-G/1.5:1) in 0.5 M H2 SO4 achieves a low overpotential of 78 mV at 10 mA cm-2 , a small Tafel slope of 48 mV dec-1 , and a high exchange current density (0.321 mA cm⁻2 ). Furthermore, the same MoS2 @W-G composite exhibits stable HER performance when using real seawater, with Faradaic efficiencies of 96 and 94% in acidic and alkaline media, respectively. Density functional theory calculations based on the hybrid MoS2 @W-G structure model confirm that suitable hybridization of 3D MoS2 and 2D W-G nanosheets can lower the hydrogen adsorption: Gibbs free energy (∆GH* ) from 1.89 eV for MoS2 to -0.13 eV for the MoS2 @W-G composite. The excellent HER activity of the 3D/2D hybridized MoS2 @W-G composite arises from abundance of active heterostructure interfaces, optimizing the electrical configuration, thereby accelerating the adsorption and dissociation of H2 O. These findings suggest a new approach for the rational development of alternative 3D/2D TMD/graphene electrocatalysts for HER applications using seawater.
Collapse
Affiliation(s)
- Van Dien Dang
- Faculty of Biology and Environment, Ho Chi Minh City University of Industry and Trade, 140 Le Trong Tan, Ho Chi Minh, 700000, Vietnam
| | - Raghunath Putikam
- Department of Applied Chemistry, Center for Interdisciplinary Molecular Science, National Yang Ming Chiao Tung University, Hsinchu, 300, Taiwan
| | - Ming-Chang Lin
- Department of Applied Chemistry, Center for Interdisciplinary Molecular Science, National Yang Ming Chiao Tung University, Hsinchu, 300, Taiwan
| | - Kung-Hwa Wei
- Department of Materials Science and Engineering, National Yang Ming Chiao Tung University, Hsinchu, 30010, Taiwan
| |
Collapse
|
5
|
Chen J, Zhao Y, Wang R, Wang P. Super-Low Friction Electrification Achieved on Polytetrafluoroethylene Films-Based Triboelectric Nanogenerators Lubricated by Graphene-Doped Silicone Oil. Micromachines (Basel) 2023; 14:1776. [PMID: 37763939 PMCID: PMC10536030 DOI: 10.3390/mi14091776] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2023] [Revised: 09/10/2023] [Accepted: 09/14/2023] [Indexed: 09/29/2023]
Abstract
The novel proposal of Wang's triboelectric nanogenerator (TENG) has inspired extensive efforts to explore energy harvesting devices from the living environment for the upcoming low-carbon society. The inevitable friction and wear problems of the tribolayer materials become one of the biggest obstacles for attaining high-performance TENGs. To achieve super-low friction electrification of the TENGs, the tribological and electrical behaviors of the sliding-mode TENGs based on polytetrafluoroethylene (PTFE) films and metallic balls under both dry friction and liquid lubrication conditions were investigated by using a customized testing platform with a ball-on-flat configuration. Most interestingly, a super-low friction coefficient of 0.008 was achieved under graphene-doped silicone oil lubrication. The corresponding wear rate of the PTFE film was drastically decreased to 8.19 × 10-5 mm3/Nm. Simultaneously, the output short-circuit current and open-circuit voltage were enhanced by 6.8 times and 3.0 times, respectively, compared to the dry friction condition. The outstanding triboelectrical performances of the PTFE film when sliding against a steel ball are attributed to the synergistic lubricating effects of the silicone oil and the graphene nanosheets. The current research provides valuable insights into achieving the macro-scale superlubricity of the TENGs in practical industrial applications.
Collapse
Affiliation(s)
| | | | | | - Pengfei Wang
- Institute of Nanosurface Science and Engineering (INSE), State Key Laboratory of Radio Frequency Heterogeneous Integration, College of Mechatronics and Control Engineering, Shenzhen University, Shenzhen 518060, China; (J.C.); (Y.Z.); (R.W.)
| |
Collapse
|
6
|
Guadagno L, Naddeo C, Sorrentino A, Raimondo M. Thermo-Mechanical Performance of Epoxy Hybrid System Based on Carbon Nanotubes and Graphene Nanoparticles. Nanomaterials (Basel) 2023; 13:2427. [PMID: 37686935 PMCID: PMC10489851 DOI: 10.3390/nano13172427] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2023] [Revised: 08/22/2023] [Accepted: 08/24/2023] [Indexed: 09/10/2023]
Abstract
This study focuses on epoxy hybrid systems prepared by incorporating multi-wall carbon nanotubes (MWCNTs) and graphene nanosheets (GNs) at two fixed filler amounts: below (0.1 wt%) and above (0.5 wt%), with varying MWCNT:GN mix ratios. The hybrid epoxy systems exhibited remarkable electrical performance, attributed to the π-π bond interactions between the multi-wall carbon nanotubes and the graphene layers dispersed in the epoxy resin matrix. The material's properties were characterized through dynamic mechanical and thermal analyses over a wide range of temperatures. In addition to excellent electrical properties, the formulated hybrid systems demonstrated high mechanical performance and thermal stability. Notably, the glass transition temperature of the samples reached 255 °C, and high storage modulus values at elevated temperatures were observed. The hybrid systems also displayed thermal stability up to 360 °C in air. By comparing the mechanical and electrical performance, the formulation can be optimized in terms of the electrical percolation threshold (EPT), electrical conductivity, thermostability, and mechanical parameters. This research provides valuable insights for designing advanced epoxy-based materials with multifunctional properties.
Collapse
Affiliation(s)
- Liberata Guadagno
- Department of Industrial Engineering, University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, Italy; (L.G.); (C.N.)
| | - Carlo Naddeo
- Department of Industrial Engineering, University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, Italy; (L.G.); (C.N.)
| | - Andrea Sorrentino
- Institute for Polymers, Composites, and Biomaterials (IPCB-CNR), Via Previati n. 1/E, 23900 Lecco, Italy;
| | - Marialuigia Raimondo
- Department of Industrial Engineering, University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, Italy; (L.G.); (C.N.)
| |
Collapse
|
7
|
Salahandish R, Hyun JE, Haghayegh F, Tabrizi HO, Moossavi S, Khetani S, Ayala-Charca G, Berenger BM, Niu YD, Ghafar-Zadeh E, Nezhad AS. CoVSense: Ultrasensitive Nucleocapsid Antigen Immunosensor for Rapid Clinical Detection of Wildtype and Variant SARS-CoV-2. Adv Sci (Weinh) 2023; 10:e2206615. [PMID: 36995043 DOI: 10.1002/advs.202206615] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Revised: 01/31/2023] [Indexed: 05/27/2023]
Abstract
The widespread accessibility of commercial/clinically-viable electrochemical diagnostic systems for rapid quantification of viral proteins demands translational/preclinical investigations. Here, Covid-Sense (CoVSense) antigen testing platform; an all-in-one electrochemical nano-immunosensor for sample-to-result, self-validated, and accurate quantification of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) nucleocapsid (N)-proteins in clinical examinations is developed. The platform's sensing strips benefit from a highly-sensitive, nanostructured surface, created through the incorporation of carboxyl-functionalized graphene nanosheets, and poly(3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS) conductive polymers, enhancing the overall conductivity of the system. The nanoengineered surface chemistry allows for compatible direct assembly of bioreceptor molecules. CoVSense offers an inexpensive (<$2 kit) and fast/digital response (<10 min), measured using a customized hand-held reader (<$25), enabling data-driven outbreak management. The sensor shows 95% clinical sensitivity and 100% specificity (Ct<25), and overall sensitivity of 91% for combined symptomatic/asymptomatic cohort with wildtype SARS-CoV-2 or B.1.1.7 variant (N = 105, nasal/throat samples). The sensor correlates the N-protein levels to viral load, detecting high Ct values of ≈35, with no sample preparation steps, while outperforming the commercial rapid antigen tests. The current translational technology fills the gap in the workflow of rapid, point-of-care, and accurate diagnosis of COVID-19.
Collapse
Affiliation(s)
- Razieh Salahandish
- BioMEMS and Bioinspired Microfluidic Laboratory, Department of Biomedical Engineering, University of Calgary, Calgary, AB, T2N 1N4, Canada
- Department of Mechanical and Manufacturing Engineering, University of Calgary, Calgary, AB, T2N 1N4, Canada
- Laboratory of Advanced Biotechnologies for Health Assessments (LAB-HA), Department of Electrical Engineering and Computer Science, Lassonde School of Engineering, York University, Toronto, M3J 1P3, Canada
| | - Jae Eun Hyun
- Department of Ecosystem and Public Health, Faculty of Veterinary Medicine, University of Calgary, Calgary, AB, T2N 1N4, Canada
| | - Fatemeh Haghayegh
- BioMEMS and Bioinspired Microfluidic Laboratory, Department of Biomedical Engineering, University of Calgary, Calgary, AB, T2N 1N4, Canada
- Department of Mechanical and Manufacturing Engineering, University of Calgary, Calgary, AB, T2N 1N4, Canada
| | - Hamed Osouli Tabrizi
- Biologically Inspired Sensors and Actuators (BioSA), Department of Electrical Engineering and Computer Science, Lassonde School of Engineering, York University, Toronto, M3J 1P3, Canada
| | - Shirin Moossavi
- BioMEMS and Bioinspired Microfluidic Laboratory, Department of Biomedical Engineering, University of Calgary, Calgary, AB, T2N 1N4, Canada
- Department of Physiology and Pharmacology, University of Calgary, Calgary, AB, T2N 1N4, Canada
- International Microbiome Centre, Cumming School of Medicine, Health Sciences Centre, University of Calgary, Calgary, AB, T2N 1N4, Canada
| | - Sultan Khetani
- BioMEMS and Bioinspired Microfluidic Laboratory, Department of Biomedical Engineering, University of Calgary, Calgary, AB, T2N 1N4, Canada
| | - Giancarlo Ayala-Charca
- Biologically Inspired Sensors and Actuators (BioSA), Department of Electrical Engineering and Computer Science, Lassonde School of Engineering, York University, Toronto, M3J 1P3, Canada
| | - Byron M Berenger
- Alberta Public Health Laboratory, Alberta Precision Laboratories, 3330 Hospital Drive, Calgary, AB, T2N 4W4, Canada
- Department of Pathology and Laboratory Medicine, Faculty of Medicine, University of Calgary, Calgary, AB, T2N 1N4, Canada
| | - Yan Dong Niu
- Department of Ecosystem and Public Health, Faculty of Veterinary Medicine, University of Calgary, Calgary, AB, T2N 1N4, Canada
| | - Ebrahim Ghafar-Zadeh
- Biologically Inspired Sensors and Actuators (BioSA), Department of Electrical Engineering and Computer Science, Lassonde School of Engineering, York University, Toronto, M3J 1P3, Canada
| | - Amir Sanati Nezhad
- BioMEMS and Bioinspired Microfluidic Laboratory, Department of Biomedical Engineering, University of Calgary, Calgary, AB, T2N 1N4, Canada
- Department of Mechanical and Manufacturing Engineering, University of Calgary, Calgary, AB, T2N 1N4, Canada
- Biomedical Engineering Graduate Program, University of Calgary, Calgary, AB, T2N 1N4, Canada
| |
Collapse
|
8
|
Aparicio-Collado JL, Zheng Q, Molina-Mateo J, Torregrosa Cabanilles C, Vidaurre A, Serrano-Aroca Á, Sabater i Serra R. Engineered Highly Porous Polyvinyl Alcohol Hydrogels with Poly(3-hydroxybutyrate-co-3-hydroxyvalerate) and Graphene Nanosheets for Musculoskeletal Tissue Engineering: Morphology, Water Sorption, Thermal, Mechanical, Electrical Properties, and Biocompatibility. Materials (Basel) 2023; 16:3114. [PMID: 37109950 PMCID: PMC10145967 DOI: 10.3390/ma16083114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 04/12/2023] [Accepted: 04/13/2023] [Indexed: 06/19/2023]
Abstract
Electroactive composite materials are very promising for musculoskeletal tissue engineering because they can be applied in combination with electrostimulation. In this context, novel graphene-based poly(3-hydroxybutyrate-co-3-hydroxyvalerate)/polyvinyl alcohol (PHBV/PVA) semi-interpenetrated networks (semi-IPN) hydrogels were engineered with low amounts of graphene (G) nanosheets dispersed within the polymer matrix to endow them with electroactive properties. The nanohybrid hydrogels, obtained by applying a hybrid solvent casting-freeze-drying method, show an interconnected porous structure and a high water-absorption capacity (swelling degree > 1200%). The thermal characterization indicates that the structure presents microphase separation, with PHBV microdomains located between the PVA network. The PHBV chains located in the microdomains are able to crystallize; even more after the addition of G nanosheets, which act as a nucleating agent. Thermogravimetric analysis indicates that the degradation profile of the semi-IPN is located between those of the neat components, with an improved thermal stability at high temperatures (>450 °C) after the addition of G nanosheets. The mechanical (complex modulus) and electrical properties (surface conductivity) significantly increase in the nanohybrid hydrogels with 0.2% of G nanosheets. Nevertheless, when the amount of G nanoparticles increases fourfold (0.8%), the mechanical properties diminish and the electrical conductivity does not increase proportionally, suggesting the presence of G aggregates. The biological assessment (C2C12 murine myoblasts) indicates a good biocompatibility and proliferative behavior. These results reveal a new conductive and biocompatible semi-IPN with remarkable values of electrical conductivity and ability to induce myoblast proliferation, indicating its great potential for musculoskeletal tissue engineering.
Collapse
Affiliation(s)
- José Luis Aparicio-Collado
- Centre for Biomaterials and Tissue Engineering, Universitat Politècnica de València, 46022 València, Spain; (J.L.A.-C.); (J.M.-M.); (C.T.C.); (A.V.)
| | - Qiqi Zheng
- Centre for Biomaterials and Tissue Engineering, Universitat Politècnica de València, 46022 València, Spain; (J.L.A.-C.); (J.M.-M.); (C.T.C.); (A.V.)
| | - José Molina-Mateo
- Centre for Biomaterials and Tissue Engineering, Universitat Politècnica de València, 46022 València, Spain; (J.L.A.-C.); (J.M.-M.); (C.T.C.); (A.V.)
| | - Constantino Torregrosa Cabanilles
- Centre for Biomaterials and Tissue Engineering, Universitat Politècnica de València, 46022 València, Spain; (J.L.A.-C.); (J.M.-M.); (C.T.C.); (A.V.)
| | - Ana Vidaurre
- Centre for Biomaterials and Tissue Engineering, Universitat Politècnica de València, 46022 València, Spain; (J.L.A.-C.); (J.M.-M.); (C.T.C.); (A.V.)
- Biomedical Research Networking Centre in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), 46022 València, Spain
| | - Ángel Serrano-Aroca
- Biomaterials and Bioengineering Lab, Centro de Investigación Traslacional San Alberto Magno, Universidad Católica de Valencia San Vicente Mártir, 46001 València, Spain
| | - Roser Sabater i Serra
- Centre for Biomaterials and Tissue Engineering, Universitat Politècnica de València, 46022 València, Spain; (J.L.A.-C.); (J.M.-M.); (C.T.C.); (A.V.)
- Biomedical Research Networking Centre in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), 46022 València, Spain
- Department of Electrical Engineering, Universitat Politècnica de València, 46022 València, Spain
| |
Collapse
|
9
|
Liu C, Song J, Zhao G, Yin Y, Ding Q. Improving Thermal Conductivity and Tribological Performance of Polyimide by Filling Cu, CNT, and Graphene. Micromachines (Basel) 2023; 14:616. [PMID: 36985023 PMCID: PMC10053350 DOI: 10.3390/mi14030616] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Revised: 03/02/2023] [Accepted: 03/06/2023] [Indexed: 06/18/2023]
Abstract
The thermal conductivity, mechanical, and tribological properties of polyimide (PI) composites filled by copper (Cu), carbon nanotube (CNT), graphene nanosheet (GNS), or combination were investigated by molecular dynamics simulation (MD). The simulated results suggested that Cu can improve thermal stability and thermal conductivity, but it reduces mechanical properties and tribological properties. CNT and GNS significantly improved the thermal and tribological properties at low content, but they decreased the properties at high content. In this study, the modification mechanism, friction, and wear mechanism of different fillers on polyimide were revealed by observing the frictional interface evolution process from the atomic scale, extracting the atomic relative concentration, the temperature and velocity distribution at the friction interface, and other microscopic information.
Collapse
Affiliation(s)
- Chen Liu
- State Key Laboratory of Mechanics and Control of Mechanical Structures, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
| | - Jingfu Song
- School of Naval Architecture & Ocean Engineering, Jiangsu Maritime Institute, Nanjing 211170, China
| | - Gai Zhao
- State Key Laboratory of Mechanics and Control of Mechanical Structures, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
- State Key Laboratory of Bio-Fibers and Eco-Textiles, Qingdao University, Qingdao 266071, China
| | - Yuhang Yin
- State Key Laboratory of Mechanics and Control of Mechanical Structures, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
| | - Qingjun Ding
- State Key Laboratory of Mechanics and Control of Mechanical Structures, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
| |
Collapse
|
10
|
Dieng M, Sankar S, Ni P, Florea I, Alpuim P, Capasso A, Yassar A, Bouanis FZ. Solution-Processed Functionalized Graphene Film Prepared by Vacuum Filtration for Flexible NO 2 Sensors. Sensors (Basel) 2023; 23:1831. [PMID: 36850429 PMCID: PMC9965048 DOI: 10.3390/s23041831] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Revised: 01/27/2023] [Accepted: 01/31/2023] [Indexed: 06/18/2023]
Abstract
Large-scale production of graphene nanosheets (GNSs) has led to the availability of solution-processable GNSs on the commercial scale. The controlled vacuum filtration method is a scalable process for the preparation of wafer-scale films of GNSs, which can be used for gas sensing applications. Here, we demonstrate the use of this deposition method to produce functional gas sensors, using a chemiresistor structure from GNS solution-based techniques. The GNS suspension was prepared by liquid-phase exfoliation (LPE) and transferred to a polyvinylidene fluoride (PVDF) membrane. The effect of non-covalent functionalization with Co-porphyrin and Fe-phthalocyanines on the sensor properties was studied. The pristine and functionalized GNS films were characterized using different techniques such as Raman spectroscopy, scanning electron microscopy (SEM), transmission electron microscopy (TEM), atomic force microscopy (AFM), X-ray diffraction (XRD), and electrical characterizations. The morphological and spectroscopic analyses both confirm that the molecules (Co-porphyrin and Fe-phthalocyanine) were successfully adsorbed onto the GNSs surface through π-π interactions. The chemiresistive sensor response of functionalized GNSs toward the low concentrations of nitrogen dioxide (NO2) (0.5-2 ppm) was studied and compared with those of the film of pristine GNSs. The tests on the sensing performance clearly showed sensitivity to a low concentration of NO2 (5 ppm). Furthermore, the chemical modification of GNSs significantly improves NO2 sensing performance compared to the pristine GNSs. The sensor response can be modulated by the type of adsorbed molecules. Indeed, Co-Por exhibited negative responsiveness (the response of Co-Por-GNS sensors and pristine GNS devices was 13.1% and 15.6%, respectively, after exposure to 0.5 ppm of NO2). Meanwhile, Fe-Phc-GNSs induced the opposite behavior resulting in an increase in the sensor response (the sensitivity was 8.3% and 7.8% of Fe-Phc-GNSs and pristine GNSs, respectively, at 0.5 ppm NO2 gas).
Collapse
Affiliation(s)
- Mbaye Dieng
- COSYS-IMSE, Univ. Gustave Eiffel, 77454 Marne-la-Vallée, France
- Laboratory of Physics of Interfaces and Thin Films, UMR 7647 CNRS/Ecole Polytechnique, IP Paris, 91128 Palaiseau, France
| | - Siva Sankar
- International Iberian Nanotechnology Laboratory, 4715-330 Braga, Portugal
| | - Pingping Ni
- COSYS-IMSE, Univ. Gustave Eiffel, 77454 Marne-la-Vallée, France
- Laboratory of Physics of Interfaces and Thin Films, UMR 7647 CNRS/Ecole Polytechnique, IP Paris, 91128 Palaiseau, France
| | - Ileana Florea
- Laboratory of Physics of Interfaces and Thin Films, UMR 7647 CNRS/Ecole Polytechnique, IP Paris, 91128 Palaiseau, France
| | - Pedro Alpuim
- International Iberian Nanotechnology Laboratory, 4715-330 Braga, Portugal
- Center of Physics, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal
| | - Andrea Capasso
- International Iberian Nanotechnology Laboratory, 4715-330 Braga, Portugal
| | - Abderrahim Yassar
- Laboratory of Physics of Interfaces and Thin Films, UMR 7647 CNRS/Ecole Polytechnique, IP Paris, 91128 Palaiseau, France
| | - Fatima Zahra Bouanis
- COSYS-IMSE, Univ. Gustave Eiffel, 77454 Marne-la-Vallée, France
- Laboratory of Physics of Interfaces and Thin Films, UMR 7647 CNRS/Ecole Polytechnique, IP Paris, 91128 Palaiseau, France
| |
Collapse
|
11
|
Shi H, Wang X, Li X, Hu X, Gan W, Xu C, Wang G. Thin-Copper-Layer-Induced Early Fracture in Graphene-Nanosheets (GNSs)-Reinforced Copper-Matrix-Laminated Composites. Materials (Basel) 2022; 15:7677. [PMID: 36363268 PMCID: PMC9655900 DOI: 10.3390/ma15217677] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Revised: 10/25/2022] [Accepted: 10/25/2022] [Indexed: 06/16/2023]
Abstract
The strength-ductility trade-off has been a long-standing challenge when designing and fabricating a novel metal matrix composite. In this study, graphene-nanosheets (GNSs)-reinforced copper (Cu)-matrix-laminated composites were fabricated through two methods, i.e., the alternating electrodeposition technique followed by spark plasma sintering (SPS) and direct electrodeposition followed by hot-press sintering. As a result, a Cu-GNS-Cu layered structure formed in the composites with various Cu layer thicknesses. Compared with the pure Cu, the yield strength of the GNS/Cu composites increased. However, the mechanical performance of the GNS/Cu composites was strongly Cu-layer-thickness-dependent, and the GNS/Cu composite possessed a brittle fracture mode when the Cu layer was thin (≤10 μm). The fracture mechanism of the GNS/Cu composites was thoroughly investigated and the results showed that the premature failure of the GNS/Cu composites with a thin Cu layer may be due to the lack of Cu matrix, which can relax the excessive stress intensity triggered by GNSs and delay the crack connection between neighboring GNS layers. This study highlights the soft Cu matrix in balancing the strength and ductility of the GNS/Cu-laminated composites and provides new technical and theoretical support for the preparation and optimization of other laminated metal matrix composites.
Collapse
Affiliation(s)
- Hailong Shi
- State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin 150001, China
- GEMS at MLZ, Helmholtz-Zentrum Hereon Lichtenbergstrsasse 1, D-85748 Garching, Germany
| | - Xiaojun Wang
- State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin 150001, China
| | - Xuejian Li
- State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin 150001, China
| | - Xiaoshi Hu
- State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin 150001, China
| | - Weimin Gan
- GEMS at MLZ, Helmholtz-Zentrum Hereon Lichtenbergstrsasse 1, D-85748 Garching, Germany
| | - Chao Xu
- Center for Analysis and Measurement, Harbin Institute of Technology, Harbin 150001, China
| | - Guochao Wang
- 38th Research Institute, China Electronics Technology Group Corporation, Hefei 230000, China
| |
Collapse
|
12
|
Lin P, Zhang Y, Cui Z, Xiong R, Wen C, Wu B, Lin Q, Sa B. Influence of Al-O and Al-C Clusters on Defects in Graphene Nanosheets Derived from Coal-Tar Pitch via Al 4C 3 Precursor. Materials (Basel) 2022; 15:7312. [PMID: 36295377 PMCID: PMC9608267 DOI: 10.3390/ma15207312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Revised: 10/13/2022] [Accepted: 10/17/2022] [Indexed: 06/16/2023]
Abstract
By treating Al4C3 as the precursor and growth environment, graphene nanosheets (GNs) can efficiently be derived from coal-tar pitch, which has the advantages of simple preparation process, high product quality, green environmental protection, low equipment requirements and low preparation cost. However, the defects in the prepared GNs have not been well understood. In order to optimize the preparation process, based on density functional theory calculations, the influence mechanism of Al-O and Al-C clusters on defects in GNs derived from coal-tar pitch via Al4C3 precursor has been systematically investigated. With minute quantities of oxygen-containing defects, Al-O and Al-C clusters have been realized in the prepared GNs from X-ray photoelectron spectroscopy analysis. Therefore, the influences of Al-O and Al-C clusters on graphene with vacancy defects and oxygen-containing defects are systematically explored from theoretical energy, electron localization function and charge transfer analysis. It is noted that the remaining Al-O and Al-C clusters in GNs are inevitably from the thermodynamics point of view. On the other hand, the existence of defects is beneficial for the further adsorption of Al-O and Al-C clusters in GNs.
Collapse
Affiliation(s)
- Peng Lin
- Key Laboratory of Eco-Materials Advanced Technology, College of Materials Science and Engineering, Fuzhou University, Fuzhou 350108, China
| | - Yinggan Zhang
- Fujian Provincial Key Laboratory of Theoretical and Computational Chemistry, College of Materials, Xiamen University, Xiamen 361005, China
| | - Zhou Cui
- Key Laboratory of Eco-Materials Advanced Technology, College of Materials Science and Engineering, Fuzhou University, Fuzhou 350108, China
| | - Rui Xiong
- Key Laboratory of Eco-Materials Advanced Technology, College of Materials Science and Engineering, Fuzhou University, Fuzhou 350108, China
| | - Cuilian Wen
- Key Laboratory of Eco-Materials Advanced Technology, College of Materials Science and Engineering, Fuzhou University, Fuzhou 350108, China
| | - Bo Wu
- Key Laboratory of Eco-Materials Advanced Technology, College of Materials Science and Engineering, Fuzhou University, Fuzhou 350108, China
| | - Qilang Lin
- Key Laboratory of Eco-Materials Advanced Technology, College of Materials Science and Engineering, Fuzhou University, Fuzhou 350108, China
| | - Baisheng Sa
- Key Laboratory of Eco-Materials Advanced Technology, College of Materials Science and Engineering, Fuzhou University, Fuzhou 350108, China
| |
Collapse
|
13
|
El-Kady OA, Yehia HM, Nouh F, Ghayad IM, El-Bitar T, Daoush WM. Enhancement of Physical Properties and Corrosion Resistance of Al-Cu-Al 2O 3/Graphene Nanocomposites by Powder Metallurgy Technique. Materials (Basel) 2022; 15:7116. [PMID: 36295184 PMCID: PMC9605149 DOI: 10.3390/ma15207116] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Revised: 09/25/2022] [Accepted: 10/06/2022] [Indexed: 06/16/2023]
Abstract
In this study, we enhanced the adhesion of graphene nanosheets to achieve homogeneous dispersion, consequently improving the electrical and thermal conductivity, coefficient of thermal expansion, and corrosion resistance with an aluminum matrix containing up to 1.5 wt. % graphene. First, 2.5 wt. % Al2O3 and varying ratios of graphene up to 1.5 wt. % were coated with 5 wt. % silver nanoparticles to metalize their surfaces. Predetermined portions of coated alumina and graphene were mixed with Al/10 wt. % Cu powder for 45 h. Mixed samples were compacted under 600 MPa and sintered at 565 °C in a vacuum furnace for 60 min with a low heating rate of 2 °C/min. The strengthening effect of the added materials on the density, microstructure, electrical and thermal conductivities, thermal expansion, and corrosion behavior of aluminum were investigated. Excellent adhesion and homogeneous dispersion of the investigated reinforcements were achieved. Three phenomena were observed: (1) an improvement in the densification, electrical and thermal conductivity, thermal expansion, and corrosion rate by adding 10 wt. % Cu to the aluminum matrix; (2) deterioration of the properties of Al/10 wt. % Cu with the addition of 2.5 wt. % alumina nanoparticles; and (3) improved properties with the addition of graphene nanosheets up to 1 wt. % and a decrease in property values beyond 1.5 wt. % graphene content due to the formation of agglomerations and pores in the metal matrix.
Collapse
Affiliation(s)
- Omayma A. El-Kady
- Powder Technology Department, Manufacturing Technology Institute, CMRDI, Cairo 11913, Egypt
| | - Hossam M. Yehia
- Production Technology Department, Faculty of Technology and Education, Helwan University, P.O. Box 11795, Cairo 11281, Egypt
| | - Fathei Nouh
- Mechanical Department, Faculty of Engineering, Sinai University, Arish 45511, Egypt
| | - Ibrahim M. Ghayad
- Plastic Deformation Department, Metals Technology Institute, CMRDI, Cairo 11913, Egypt
| | - Taher El-Bitar
- Plastic Deformation Department, Metals Technology Institute, CMRDI, Cairo 11913, Egypt
| | - Walid M. Daoush
- Production Technology Department, Faculty of Technology and Education, Helwan University, P.O. Box 11795, Cairo 11281, Egypt
- Department of Chemistry, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), P.O. Box 90950, Riyadh 11623, Saudi Arabia
| |
Collapse
|
14
|
Kralj M, Krivačić S, Ivanišević I, Zubak M, Supina A, Marciuš M, Halasz I, Kassal P. Conductive Inks Based on Melamine Intercalated Graphene Nanosheets for Inkjet Printed Flexible Electronics. Nanomaterials (Basel) 2022; 12:nano12172936. [PMID: 36079974 PMCID: PMC9457697 DOI: 10.3390/nano12172936] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Revised: 08/19/2022] [Accepted: 08/20/2022] [Indexed: 05/27/2023]
Abstract
With the growing number of flexible electronics applications, environmentally benign ways of mass-producing graphene electronics are sought. In this study, we present a scalable mechanochemical route for the exfoliation of graphite in a planetary ball mill with melamine to form melamine-intercalated graphene nanosheets (M-GNS). M-GNS morphology was evaluated, revealing small particles, down to 14 nm in diameter and 0.4 nm thick. The M-GNS were used as a functional material in the formulation of an inkjet-printable conductive ink, based on green solvents: water, ethanol, and ethylene glycol. The ink satisfied restrictions regarding stability and nanoparticle size; in addition, it was successfully inkjet printed on plastic sheets. Thermal and photonic post-print processing were evaluated as a means of reducing the electrical resistance of the printed features. Minimal sheet resistance values (5 kΩ/sq for 10 printed layers and 626 Ω/sq for 20 printed layers) were obtained on polyimide sheets, after thermal annealing for 1 h at 400 °C and a subsequent single intense pulsed light flash. Lastly, a proof-of-concept simple flexible printed circuit consisting of a battery-powered LED was realized. The demonstrated approach presents an environmentally friendly alternative to mass-producing graphene-based printed flexible electronics.
Collapse
Affiliation(s)
- Magdalena Kralj
- Division of Physical Chemistry, Ruđer Bošković Institute, Bijenička cesta 54, 10000 Zagreb, Croatia
| | - Sara Krivačić
- Faculty of Chemical Engineering and Technology, University of Zagreb, Marulićev trg 19, 10000 Zagreb, Croatia
| | - Irena Ivanišević
- Faculty of Chemical Engineering and Technology, University of Zagreb, Marulićev trg 19, 10000 Zagreb, Croatia
| | - Marko Zubak
- Faculty of Chemical Engineering and Technology, University of Zagreb, Marulićev trg 19, 10000 Zagreb, Croatia
| | - Antonio Supina
- Institute of Physics, Bijenička cesta 46, 10000 Zagreb, Croatia
| | - Marijan Marciuš
- Division of Materials Chemistry, Ruđer Bošković Institute, Bijenička cesta 54, 10000 Zagreb, Croatia
| | - Ivan Halasz
- Division of Physical Chemistry, Ruđer Bošković Institute, Bijenička cesta 54, 10000 Zagreb, Croatia
| | - Petar Kassal
- Faculty of Chemical Engineering and Technology, University of Zagreb, Marulićev trg 19, 10000 Zagreb, Croatia
| |
Collapse
|
15
|
Hu Z, Su H, Zhou M, Liu J, Wan Y, Hu J, Xu Y. Lithiophilic Carbon Nanofiber/Graphene Nanosheet Composite Scaffold Prepared by a Scalable and Controllable Biofabrication Method for Ultrastable Dendrite-Free Lithium-Metal Anodes. Small 2022; 18:e2104735. [PMID: 34837308 DOI: 10.1002/smll.202104735] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2021] [Revised: 10/06/2021] [Indexed: 06/13/2023]
Abstract
Li metal is regarded as a promising anode for high-energy-density Li batteries, while the limited cycle life and fast capacity decay caused by notorious Li dendrite growth seriously impedes its application. Herein, a robust and highly lithiophilic bacterial cellulose-derived carbon nanofiber@reduced graphene oxide nanosheet (BC-CNF@rGO) composite scaffold is fabricated as a host for dendrite-free Li metal anode through an in situ biofabrication method. The abundant lithiophilic functional groups, conductive 3D network, and excellent mechanical property can effectively regulate uniform Li nucleation and deposition, enable fast reaction kinetics, and alleviate volume change. As a result, the BC-CNF@rGO skeleton achieves exceptional Li plating/stripping performance with a high average Coulombic efficiency of 98.3% over 800 cycles, and a long cycle life span of 5000 h at 2 mA cm-2 @1 mAh cm-2 with a low overpotential of ≈15 mV for lithium plating. Furthermore, full cells coupling BC-CNF@rGO-Li anode with LiFePO4 cathode achieves an unprecedented cycling stability with a long cycle life of 3000 cycles at 1 C. This work sheds light on a promising material design and fabrication strategy for realizing high performance Li metal batteries.
Collapse
Affiliation(s)
- Zongmin Hu
- School of Materials Science and Engineering, Key Laboratory of Advanced Ceramics and Machining Technology (Ministry of Education), and Tianjin Key Laboratory of Composite and Functional Materials, Tianjin University, Tianjin, 300072, China
| | - Hai Su
- School of Materials Science and Engineering, Key Laboratory of Advanced Ceramics and Machining Technology (Ministry of Education), and Tianjin Key Laboratory of Composite and Functional Materials, Tianjin University, Tianjin, 300072, China
| | - Mengfan Zhou
- School of Materials Science and Engineering, Key Laboratory of Advanced Ceramics and Machining Technology (Ministry of Education), and Tianjin Key Laboratory of Composite and Functional Materials, Tianjin University, Tianjin, 300072, China
| | - Jinzhi Liu
- Jiangxi Key Laboratory of Nanobiomaterials, Institute of Advanced Materials, East China Jiaotong University, Nanchang, 330013, China
| | - Yizao Wan
- Jiangxi Key Laboratory of Nanobiomaterials, Institute of Advanced Materials, East China Jiaotong University, Nanchang, 330013, China
| | - Jimin Hu
- College of Chemistry, Nankai University, Tianjin, 300071, China
| | - Yunhua Xu
- School of Materials Science and Engineering, Key Laboratory of Advanced Ceramics and Machining Technology (Ministry of Education), and Tianjin Key Laboratory of Composite and Functional Materials, Tianjin University, Tianjin, 300072, China
| |
Collapse
|
16
|
Stavrou M, Stathis A, Papadakis I, Lyuleeva-Husemann A, Koudoumas E, Couris S. Silicon Nanosheets: An Emerging 2D Photonic Material with a Large Transient Nonlinear Optical Response beyond Graphene. Nanomaterials (Basel) 2021; 12:90. [PMID: 35010042 PMCID: PMC8746558 DOI: 10.3390/nano12010090] [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] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Revised: 12/24/2021] [Accepted: 12/26/2021] [Indexed: 11/16/2022]
Abstract
The present work reports on the transient nonlinear optical (NLO) responses of two different types of 2D silicon nanosheets (SiNSs), namely hydride-terminated silicon nanosheets (SiNS-H) and 1-dodecene-functionalized silicon nanosheets (SiNS-dodecene). The main motivation of this study was to extend the knowledge regarding the NLO properties of these Si-based materials, for which very few published studies exist so far. For that purpose, the NLO responses of SiNS-H and SiNS-dodecene were investigated experimentally in the nanosecond regime at 532 and 1064 nm using the Z-scan technique, while the obtained results were compared to those of certain recently studied graphene nanosheets. SiNS-dodecene was found to exhibit the largest third-order susceptibility χ(3) values at both excitation wavelengths, most probably ascribed to the presence of point defects, indicating the importance of chemical functionalization for the efficient enhancement and tailoring of the NLO properties of these emerging 2D Si-based materials. Most importantly, the results demonstrated that the present silicon nanosheets revealed comparable and even larger NLO responses than graphene nanosheets. Undoubtedly, SiNSs could be strong competitors of graphene for applications in 2D-material-based photonics and optoelectronics.
Collapse
Affiliation(s)
- Michalis Stavrou
- Department of Physics, University of Patras, 26504 Patras, Western Greece, Greece; (M.S.); (A.S.); (I.P.)
- Institute of Chemical Engineering Sciences (ICE-HT), Foundation for Research and Technology-Hellas (FORTH), 26504 Patras, Western Greece, Greece
| | - Aristeidis Stathis
- Department of Physics, University of Patras, 26504 Patras, Western Greece, Greece; (M.S.); (A.S.); (I.P.)
- Institute of Chemical Engineering Sciences (ICE-HT), Foundation for Research and Technology-Hellas (FORTH), 26504 Patras, Western Greece, Greece
| | - Ioannis Papadakis
- Department of Physics, University of Patras, 26504 Patras, Western Greece, Greece; (M.S.); (A.S.); (I.P.)
- Institute of Chemical Engineering Sciences (ICE-HT), Foundation for Research and Technology-Hellas (FORTH), 26504 Patras, Western Greece, Greece
| | | | - Emmanouel Koudoumas
- Center of Materials Technology and Photonics, School of Engineering, Hellenic Mediterranean University, 71410 Heraklion, Crete, Greece;
- Department of Electrical and Computer Engineering, School of Engineering, Hellenic Mediterranean University, 71410 Heraklion, Crete, Greece
| | - Stelios Couris
- Department of Physics, University of Patras, 26504 Patras, Western Greece, Greece; (M.S.); (A.S.); (I.P.)
- Institute of Chemical Engineering Sciences (ICE-HT), Foundation for Research and Technology-Hellas (FORTH), 26504 Patras, Western Greece, Greece
| |
Collapse
|
17
|
Zhang F, Liu X, Wang B, Wang G, Wang H. Bi@C Nanospheres with the Unique Petaloid Core-Shell Structure Anchored on Porous Graphene Nanosheets as an Anode for Stable Sodium- and Potassium-Ion Batteries. ACS Appl Mater Interfaces 2021; 13:59867-59881. [PMID: 34874168 DOI: 10.1021/acsami.1c16946] [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] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Bismuth (Bi) has emerged as a prospective candidate as Na-ion and potassium-ion battery anodes because of its unique advantages of low cost, high theoretical gravimetric capacity (386 mAh g-1), and superior volumetric capacity (3800 mAh cm-3). However, the low electronic conductivity and the huge volume expansion of Bi during the alloying/dealloying reactions are extremely detrimental to cycling stability, which seriously hinder its practical application. To overcome these issues, we propose a rational design: Bi@C nanospheres with the unique petaloid core-shell structure are synthesized in one step for the first time and then combined with different contents of graphene (GR) nanosheets to form the composites Bi@C@GR. The Bi@C nanospheres with a core-shell structure are beneficial to shortening the transmission path of electrons/ions and reducing the risk from structural rupture of the particles during cycling. In addition, the combination of Bi@C nanospheres and porous GR could greatly improve the conductivity and prevent the aggregation of particles, which is conducive to better cycling stability and rate performance. Consequently, Bi@C@GR-2 presents a superior reversible capacity for sodium storage (300 mAh g-1 over 80 cycles) and potassium storage (200 mAh g-1 over 70 cycles) at 0.1 A g-1. Furthermore, in situ electrochemical impedance spectroscopy and ex situ transmission electron microscopy are carried out to analyze and reflect the kinetic reaction mechanism and the phase change of the Bi@C@GR-2 electrode during the charge/discharge processes.
Collapse
Affiliation(s)
- Fan Zhang
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an 710127, P.R. China
- Shaanxi Joint Lab of Graphene (NWU), Xi'an 710127, P.R. China
| | - Xiaojie Liu
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an 710127, P.R. China
- Shaanxi Joint Lab of Graphene (NWU), Xi'an 710127, P.R. China
| | - Beibei Wang
- State Key Lab Incubation Base of Photoelectric Technology and Functional Materials, International Collaborative Center on Photoelectric Technology and Nano Functional Materials, Institute of Photonics & Photon-Technology, Northwest University, Xi'an 710069, P.R. China
- Shaanxi Joint Lab of Graphene (NWU), Xi'an 710127, P.R. China
| | - Gang Wang
- State Key Lab Incubation Base of Photoelectric Technology and Functional Materials, International Collaborative Center on Photoelectric Technology and Nano Functional Materials, Institute of Photonics & Photon-Technology, Northwest University, Xi'an 710069, P.R. China
- Shaanxi Joint Lab of Graphene (NWU), Xi'an 710127, P.R. China
| | - Hui Wang
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an 710127, P.R. China
- Shaanxi Joint Lab of Graphene (NWU), Xi'an 710127, P.R. China
| |
Collapse
|
18
|
Malik S, Marchesan S. Growth, Properties, and Applications of Branched Carbon Nanostructures. Nanomaterials (Basel) 2021; 11:2728. [PMID: 34685169 PMCID: PMC8540255 DOI: 10.3390/nano11102728] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 10/07/2021] [Accepted: 10/12/2021] [Indexed: 12/19/2022]
Abstract
Nanomaterials featuring branched carbon nanotubes (b-CNTs), nanofibers (b-CNFs), or other types of carbon nanostructures (CNSs) are of great interest due to their outstanding mechanical and electronic properties. They are promising components of nanodevices for a wide variety of advanced applications spanning from batteries and fuel cells to conductive-tissue regeneration in medicine. In this concise review, we describe the methods to produce branched CNSs, with particular emphasis on the most widely used b-CNTs, the experimental and theoretical studies on their properties, and the wide range of demonstrated and proposed applications, highlighting the branching structural features that ultimately allow for enhanced performance relative to traditional, unbranched CNSs.
Collapse
Affiliation(s)
- Sharali Malik
- Karlsruhe Institute of Technology, Institute of Quantum Materials and Technology, Hermann-von-Helmholtz-Platz 1, 76131 Karlsruhe, Germany
| | - Silvia Marchesan
- Department of Chemical and Pharmaceutical Sciences, University of Trieste, Via L. Giorgieri 1, 34127 Trieste, Italy;
| |
Collapse
|
19
|
Thomas DG, De-Alwis S, Gupta S, Pecharsky VK, Mendivelso-Perez D, Montazami R, Smith EA, Hashemi NN. Protein-assisted scalable mechanochemical exfoliation of few-layer biocompatible graphene nanosheets. R Soc Open Sci 2021; 8:200911. [PMID: 34035934 PMCID: PMC8101280 DOI: 10.1098/rsos.200911] [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] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Accepted: 03/01/2021] [Indexed: 05/04/2023]
Abstract
A facile method to produce few-layer graphene (FLG) nanosheets is developed using protein-assisted mechanical exfoliation. The predominant shear forces that are generated in a planetary ball mill facilitate the exfoliation of graphene layers from graphite flakes. The process employs a commonly known protein, bovine serum albumin (BSA), which not only acts as an effective exfoliation agent but also provides stability by preventing restacking of the graphene layers. The latter is demonstrated by the excellent long-term dispersibility of exfoliated graphene in an aqueous BSA solution, which exemplifies a common biological medium. The development of such potentially scalable and toxin-free methods is critical for producing cost-effective biocompatible graphene, enabling numerous possible biomedical and biological applications. A methodical study was performed to identify the effect of time and varying concentrations of BSA towards graphene exfoliation. The fabricated product has been characterized using Raman spectroscopy, powder X-ray diffraction, transmission electron microscopy and scanning electron microscopy. The BSA-FLG dispersion was then placed in media containing Astrocyte cells to check for cytotoxicity. It was found that lower concentrations of BSA-FLG dispersion had only minute cytotoxic effects on the Astrocyte cells.
Collapse
Affiliation(s)
- Deepak-George Thomas
- Department of Mechanical Engineering, Iowa State University, Ames, IA 50011-2030, USA
| | - Steven De-Alwis
- Department of Mechanical Engineering, Iowa State University, Ames, IA 50011-2030, USA
| | - Shalabh Gupta
- The Ames Laboratory, US Department of Energy, Ames, IA 50011-3020, USA
| | - Vitalij K. Pecharsky
- The Ames Laboratory, US Department of Energy, Ames, IA 50011-3020, USA
- Department of Material Science and Engineering, Iowa State University, Ames, IA, 50011-1096, USA
| | - Deyny Mendivelso-Perez
- The Ames Laboratory, US Department of Energy, Ames, IA 50011-3020, USA
- Department of Chemistry, Iowa State University, Ames, IA, 50011-1021, USA
| | - Reza Montazami
- Department of Mechanical Engineering, Iowa State University, Ames, IA 50011-2030, USA
| | - Emily A. Smith
- The Ames Laboratory, US Department of Energy, Ames, IA 50011-3020, USA
- Department of Chemistry, Iowa State University, Ames, IA, 50011-1021, USA
| | - Nicole N. Hashemi
- Department of Mechanical Engineering, Iowa State University, Ames, IA 50011-2030, USA
- Department of Biomedical Sciences, Iowa State University, Ames, IA 50011, USA
| |
Collapse
|
20
|
Caglayan MO. Rheological and tribological characterization of novel modified graphene/oil-based nanofluids using force microscopy. Microsc Res Tech 2020; 84:814-827. [PMID: 33171541 DOI: 10.1002/jemt.23641] [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] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2020] [Revised: 09/14/2020] [Accepted: 10/28/2020] [Indexed: 01/19/2023]
Abstract
In this study, it is aimed to improve the lubrication and anti-wear characteristics of nanofluids produced by the distribution of silane-modified graphene nanosheets into the base oil without any surfactant or dispersant. Nanofluids are among the hottest research topics currently studied in the literature due to their interesting thermal and rheological properties. Graphene nanosheet with unique physicochemical properties is a good alternative as a nanofluid component and a lubricant. In this study, the behavior of nanofluidic films on the material was investigated by using scanning probe techniques, phase-contrast microscopy, and friction force microscopy techniques. Due to stick-slip behavior and rheological properties that are dominant in the studied ranges, problems were encountered in performing tribological analyzes with friction force microscopy. On the other hand, these results have been beneficial in determining tribological factors in nanoscale. The presented nanofluids showed non-Newtonian behavior at high concentrations and shear rates and shown an improved tribological performance up to 43% in friction coefficient, 91% in wear, and 46% in thermal conductivity compared to the base oil.
Collapse
Affiliation(s)
- Mustafa Oguzhan Caglayan
- Faculty of Engineering, Bioengineering Department, Bilecik Seyh Edebali University, Bilecik, Turkey.,Faculty of Engineering, Nanotechnology Department, Cumhuriyet University, Sivas, Turkey
| |
Collapse
|
21
|
Yang W, Yang Z, Fu Y, Yu A, Feng J, Zhan Y. Effect of Graphene Nanosheet Addition on the Wettability and Mechanical Properties of Sn-20Bi-xGNS/Cu Solder Joints. Materials (Basel) 2020; 13:E3968. [PMID: 32911653 DOI: 10.3390/ma13183968] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Revised: 09/03/2020] [Accepted: 09/03/2020] [Indexed: 12/02/2022]
Abstract
Graphene nanosheets (GNSs) have an extensive application in materials modification. In this study, the effects of graphene nanosheets on the wettability of Sn-20Bi lead-free solder on copper (Cu) substrate and the growth behavior of intermetallic compound (IMC) layers at Sn-20Bi-xGNS/Cu solder joints were investigated. The experimental results indicate that the wettability of Sn-20Bi solder firstly diminished and then increased by the addition of GNSs. Meanwhile, a prism-shaped and scallop-shaped Cu6Sn5 IMC layer was clearly observed at the interface of the solder/substrate system. Moreover, it was found that a small amount of GNS addition can significantly inhibit the growth of the IMC layer at the interface as well as refine the microstructure. Additionally, by nano-indentation apparatus, it can be concluded that the hardness and elastic module of IMCs show the same variation trend, which firstly decreased and then increased. Besides, to intuitively demonstrate the reliability of IMCs, the relationship between the hardness and elastic module was established, and the ratio of hardness/elastic module (H/E) was adopted to characterize the reliability of IMCs. The results show that when the addition of GNSs was 0.02 wt%, the value of H/E is the minimum and the solder joint has the highest reliability.
Collapse
|
22
|
Afsharimani N, Durán A, Galusek D, Castro Y. Hybrid Sol-Gel Silica Coatings Containing Graphene Nanosheets for Improving the Corrosion Protection of AA2024-T3. Nanomaterials (Basel) 2020; 10:E1050. [PMID: 32486101 PMCID: PMC7352741 DOI: 10.3390/nano10061050] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Revised: 05/20/2020] [Accepted: 05/27/2020] [Indexed: 12/02/2022]
Abstract
In the present work, nanostructured graphene nanosheets were added to hybrid silica sols and deposited on aluminium alloy A2024-T3 to study the effect on the corrosion behaviour. Sols were prepared using tetraethyl-orthosilicate (TEOS), 3-glycidoxypropyl-trimethoxysilane (GPTMS) and a colloidal silica suspension (LUDOX) as silica precursors with adding chemically modified graphene nanosheets (GN-chem). The graphene nanosheets were modified through a straightforward and simple hydrothermal approach and then, dispersed into a silica sol (SiO2/GN-chem). ATR-FTIR was used to optimize the silica sol-gel synthesis and to confirm the cross-linking of the silica network. The corrosion behaviour of the SiO2/GN-chem coatings was also analysed by electrochemical measurement (potentiodynamic polarization) in 0.05 M NaCl solution. The results showed that the incorporation of modified graphene nanosheets into hybrid silica sol-gel coatings affected the corrosion properties of the substrates. An improvement in the corrosion resistance was observed likely due to the enhanced barrier property and hydrophobic behaviour obtained by incorporation of GN-chem and colloidal silica nanoparticles.
Collapse
Affiliation(s)
- Nasima Afsharimani
- Department of Coating Processes, FunGlass, Alexander Dubček University of Trenčín, Študentská 2, 91150 Trenčín, Slovakia;
| | - Alicia Durán
- Instituto de Cerámica y Vidrio (CSIC), Campus de Cantoblanco, 28049 Madrid, Spain; (A.D.); (Y.C.)
| | - Dušan Galusek
- Department of Coating Processes, FunGlass, Alexander Dubček University of Trenčín, Študentská 2, 91150 Trenčín, Slovakia;
- Joint Glass Centre of the IIC SAS, TnUAD and FChPT STU, 91150 Trenčín, Slovakia
| | - Yolanda Castro
- Instituto de Cerámica y Vidrio (CSIC), Campus de Cantoblanco, 28049 Madrid, Spain; (A.D.); (Y.C.)
| |
Collapse
|
23
|
Huang JB, Patra J, Lin MH, Ger MD, Liu YM, Pu NW, Hsieh CT, Youh MJ, Dong QF, Chang JK. A Holey Graphene Additive for Boosting Performance of Electric Double-Layer Supercapacitors. Polymers (Basel) 2020; 12:polym12040765. [PMID: 32244627 PMCID: PMC7240531 DOI: 10.3390/polym12040765] [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] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Revised: 03/25/2020] [Accepted: 03/27/2020] [Indexed: 11/16/2022] Open
Abstract
We demonstrate a facile and effective method, which is low-cost and easy to scale up, to fabricate holey graphene nanosheets (HGNSs) via ultrafast heating during synthesis. Various heating temperatures are used to modify the material properties of HGNSs. First, we use HGNSs as the electrode active materials for electric double-layer capacitors (EDLCs). A synthesis temperature of 900 °C seems to be optimal, i.e., the conductivity and adhesion of HGNSs reach a compromise. The gravimetric capacitance of this HGNS sample (namely HGNS-900) is 56 F·g−1. However, the volumetric capacitance is low, which hinders its practical application. Secondly, we incorporate activated carbon (AC) into HGNS-900 to make a composite EDLC material. The effect of the AC:HGNS-900 ratio on the capacitance, high-rate performance, and cycling stability are systematically investigated. With a proper amount of HGNS-900, both the electrode gravimetric and volumetric capacitances at high rate charging/discharging are clearly higher than those of plain AC electrodes. The AC/HGNS-900 composite is a promising electrode material for nonaqueous EDLC applications.
Collapse
Affiliation(s)
- Jun-Bin Huang
- Department of Chemical and Materials Engineering, Chung Cheng Institute of Technology, National Defense University, 1000 Xingfeng Road, Taoyuan 335, Taiwan; (J.-B.H.); (M.-H.L.); (Y.-M.L.)
| | - Jagabandhu Patra
- Hierarchical Green-Energy Materials (Hi-GEM) Research Center, National Cheng Kung University, 1 University Road, Tainan 70101, Taiwan;
- Department of Materials Science and Engineering, National Chiao Tung University, 1001 University Road, Hsinchu 30010, Taiwan
| | - Ming-Hsien Lin
- Department of Chemical and Materials Engineering, Chung Cheng Institute of Technology, National Defense University, 1000 Xingfeng Road, Taoyuan 335, Taiwan; (J.-B.H.); (M.-H.L.); (Y.-M.L.)
| | - Ming-Der Ger
- Department of Chemical and Materials Engineering, Chung Cheng Institute of Technology, National Defense University, 1000 Xingfeng Road, Taoyuan 335, Taiwan; (J.-B.H.); (M.-H.L.); (Y.-M.L.)
- Correspondence: (M.-D.G.); (N.-W.P.); (J.-K.C.); Tel.: +886-3-5712121 (ext. 55320) (J.-K.C.)
| | - Yih-Ming Liu
- Department of Chemical and Materials Engineering, Chung Cheng Institute of Technology, National Defense University, 1000 Xingfeng Road, Taoyuan 335, Taiwan; (J.-B.H.); (M.-H.L.); (Y.-M.L.)
| | - Nen-Wen Pu
- Department of Photonics Engineering, Yuan Ze University, 135 Yuan-Tung Road, Taoyuan 32003, Taiwan
- Correspondence: (M.-D.G.); (N.-W.P.); (J.-K.C.); Tel.: +886-3-5712121 (ext. 55320) (J.-K.C.)
| | - Chien-Te Hsieh
- Department of Mechanical, Aerospace, and Biomedical Engineering, University of Tennessee, Knoxville, TN 37996, USA;
| | - Meng-Jey Youh
- Department of Mechanical Engineering, Ming Chi University of Technology, 84 Gongzhuan Road, Taishan District, New Taipei City 243, Taiwan;
| | - Quan-Feng Dong
- State Key Laboratory for Physical Chemistry of Solid Surfaces, Department of Chemistry, Xiamen University, Xiamen 361005, China;
| | - Jeng-Kuei Chang
- Hierarchical Green-Energy Materials (Hi-GEM) Research Center, National Cheng Kung University, 1 University Road, Tainan 70101, Taiwan;
- Department of Materials Science and Engineering, National Chiao Tung University, 1001 University Road, Hsinchu 30010, Taiwan
- Correspondence: (M.-D.G.); (N.-W.P.); (J.-K.C.); Tel.: +886-3-5712121 (ext. 55320) (J.-K.C.)
| |
Collapse
|
24
|
Zhao J, Li Y, He Y, Luo J. In Situ Green Synthesis of the New Sandwichlike Nanostructure of Mn 3O 4/Graphene as Lubricant Additives. ACS Appl Mater Interfaces 2019; 11:36931-36938. [PMID: 31356745 DOI: 10.1021/acsami.9b08993] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Nanoparticles and two-dimensional (2D) nanosheets are well-investigated as lubricant additives, which can significantly reduce frictional energy consumption. However, the tribological properties of the additives will deteriorate because of the occurrence of aggregation in the lubricant and the difficulty in entering the frictional contact area. In the present work, the new sandwichlike nanostructure of Mn3O4 nanoparticles and graphene nanosheets (Mn3O4@G) has been developed by an in situ green synthesis method; i.e., the impurities of Mn2+ ions in crude graphite oxide as the precursor are directly transferred into Mn3O4 precipitate between the graphene sheets. The graphene has a lamellar structure without folds and wrinkles, and the Mn3O4 nanoparticles are not only uniformly anchored on the graphene surfaces but also intercalated in the layers of the graphene nanosheets. The Mn3O4@G exhibits excellent tribological properties and high stability because of a synergistic lubrication effect between the graphene nanosheets and the Mn3O4 nanoparticles. Even at an ultralow concentration (0.075 wt %) and a high temperature of 125 °C, the friction coefficient and the wear depth have been reduced by 75% and 97% compared with base oil, respectively. The synthesis method and the Mn3O4@G nanocomposite have significant potential in various tribological applications for saving energy.
Collapse
Affiliation(s)
- Jun Zhao
- College of Mechanical and Electrical Engineering , Beijing University of Chemical Technology , Beijing 100029 , China
- State Key Laboratory of Tribology , Tsinghua University , Beijing 100084 , China
| | - Yingru Li
- Institute of Materials , China Academy of Engineering Physics , PO Box 9071-11, Mianyang , Sichuan 621908 , China
| | - Yongyong He
- State Key Laboratory of Tribology , Tsinghua University , Beijing 100084 , China
| | - Jianbin Luo
- State Key Laboratory of Tribology , Tsinghua University , Beijing 100084 , China
| |
Collapse
|
25
|
Tang Y, Guo Q, Chen Z, Zhang X, Lu C, Cao J, Zheng Z. Scalable Manufactured Self-Healing Strain Sensors Based on Ion-Intercalated Graphene Nanosheets and Interfacial Coordination. ACS Appl Mater Interfaces 2019; 11:23527-23534. [PMID: 31252504 DOI: 10.1021/acsami.9b06208] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Desirable mechanical strength and self-healing performance are very important to highly sensitive and stretchable sensors to meet their practical applications. However, balancing these two key performance parameters is still a great challenge. Herein, we present a simple, large-scale, and cost-efficient route to fabricate autonomously self-healing strain sensors with satisfactory mechanical properties. Specifically, ion-intercalated mechanical milling was utilized to realize the large-scale preparation of graphene nanosheets (GNs). Then, a well-organized GN-nanostructured network was constructed in a rubber matrix based on interfacial metal-ligand coordination. The resultant nanocomposites show desirable mechanical properties (∼5 times higher than that of control sample without interfacial coordination), excellent self-healing performance (even healable in various harsh conditions, for example, underwater, at subzero temperature or exposed in acidic and alkaline conditions), and ultrahigh sensitivity (gauge factor ≈ 45 573.1). The elaborately designed strain sensors offer a feasible approach for the scalable production of self-healing strain-sensing devices, making it promising for further applications, including artificial skin, smart robotics, and other electrical devices.
Collapse
Affiliation(s)
- Yumeng Tang
- State Key Laboratory of Polymer Materials and Engineering , Sichuan University , Chengdu 610065 , China
| | - Quanquan Guo
- State Key Laboratory of Polymer Materials and Engineering , Sichuan University , Chengdu 610065 , China
| | - Zhenming Chen
- Guangxi Key Laboratory of Calcium Carbonate Resources Comprehensive Utilization, College of Materials & Environmental Engineering , Hezhou University , Hezhou 542899 , China
| | - Xinxing Zhang
- State Key Laboratory of Polymer Materials and Engineering , Sichuan University , Chengdu 610065 , China
| | - Canhui Lu
- State Key Laboratory of Polymer Materials and Engineering , Sichuan University , Chengdu 610065 , China
| | - Jie Cao
- State Key Laboratory of Polymer Materials and Engineering , Sichuan University , Chengdu 610065 , China
| | - Zhuo Zheng
- State Key Laboratory of Polymer Materials and Engineering , Sichuan University , Chengdu 610065 , China
| |
Collapse
|
26
|
Zhai Z, You Y, Ma L, Jiang D, Li F, Yuan H, Zheng M, Shen W. One-Step In Situ Self-Assembly of Cypress Leaf-Like Cu(OH) 2 Nanostructure/ Graphene Nanosheets Composite with Excellent Cycling Stability for Supercapacitors. Nanoscale Res Lett 2019; 14:167. [PMID: 31101986 PMCID: PMC6525213 DOI: 10.1186/s11671-019-3000-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Accepted: 05/06/2019] [Indexed: 06/09/2023]
Abstract
Transition metal hydroxides and graphene composite holds great promise to be the next generation of high performance electrode material for energy storage applications. Here we fabricate the cypress leaf-like Cu(OH)2 nanostructure/graphene nanosheets composite through one-step in situ synthesis process, employed as a new type of electrode material for high efficiency electrochemical energy storage in supercapacitors. A solution-based two-electrode system is applied to synthesize Cu(OH)2/graphene hybrid nanostructure, where anodic graphene nanosheets firmly anchor cathodic Cu(OH)2 nanostructure due to the electrostatic interaction. The in situ self-assembly of Cu(OH)2/graphene ensures good structural robustness and the cypress leaf-like Cu(OH)2 nanostructure prompt to form the open and porous morphology. The hybrid structure would facilitate charge transport and effectively mitigate the volume changes during long-term charging/discharging cycles. As a consequence, the Cu(OH)2/graphene composite exhibits the highest capacitance of 317 mF/cm2 at the current density of 1 mA/cm2 and superior cyclic stability with no capacitance decay over 20,000 cycles and remarkable rate capability at increased current densities.
Collapse
Affiliation(s)
- Zhihao Zhai
- Key Laboratory of Artificial Structures and Quantum Control (Ministry of Education), School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai, China
| | - Yuxiu You
- Key Laboratory of Artificial Structures and Quantum Control (Ministry of Education), School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai, China
| | - Liguo Ma
- Key Laboratory of Artificial Structures and Quantum Control (Ministry of Education), School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai, China
| | - Dongkai Jiang
- Key Laboratory of Artificial Structures and Quantum Control (Ministry of Education), School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai, China
| | - Fanggang Li
- Key Laboratory of Artificial Structures and Quantum Control (Ministry of Education), School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai, China
| | - Hao Yuan
- Key Laboratory of Artificial Structures and Quantum Control (Ministry of Education), School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai, China
| | - Maojun Zheng
- Key Laboratory of Artificial Structures and Quantum Control (Ministry of Education), School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai, China
- Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, China
| | - Wenzhong Shen
- Key Laboratory of Artificial Structures and Quantum Control (Ministry of Education), School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai, China
| |
Collapse
|
27
|
Wu Z, Xu C, Ma C, Liu Z, Cheng HM, Ren W. Synergistic Effect of Aligned Graphene Nanosheets in Graphene Foam for High-Performance Thermally Conductive Composites. Adv Mater 2019; 31:e1900199. [PMID: 30856289 DOI: 10.1002/adma.201900199] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2019] [Revised: 02/16/2019] [Indexed: 06/09/2023]
Abstract
Graphene shows a great potential for high-performance thermally conductive composite applications because of its extremely high thermal conductivity. However, the graphene-based polymer composites reported so far only have a limited thermal conductivity, with the highest thermal conductivity enhancement (TCE) per 1 vol% graphene less than 900%. Here, a continuous network of graphene foam (GF), filled with aligned graphene nanosheets (GNs), is shown to be an ideal filler structure for thermally conductive composite materials. Compared to previous reports, a clear thermal percolation is observed at a low graphene loading fraction. The GNs/GF/natural rubber composite shows the highest TCE of 8100% (6.2 vol% graphene loading) ever reported at room temperature, which gives a record-high TCE per 1 vol% graphene of 1300%. Further analyses reveal a significant synergistic effect between the aligned GNs and 3D interconnected GF, which plays a key role in the formation of a thermal percolation network to remarkably improve the thermal conductivity of the composites. Additionally, the use of this composite for efficient heat dissipation of light-emitting diode (LED) lamps is demonstrated. These findings provide valuable guidance to design high-performance graphene-based thermally conductive materials, and open up the possibility for the use of graphene in high-power electronic devices.
Collapse
Affiliation(s)
- Zhaohong Wu
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang, 110016, P. R. China
- School of Materials Science and Engineering, University of Science and Technology of China, Shenyang, 110016, P. R. China
| | - Chuan Xu
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang, 110016, P. R. China
| | - Chaoqun Ma
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang, 110016, P. R. China
| | - Zhibo Liu
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang, 110016, P. R. China
| | - Hui-Ming Cheng
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang, 110016, P. R. China
- School of Materials Science and Engineering, University of Science and Technology of China, Shenyang, 110016, P. R. China
- Shenzhen Geim Graphene Center, Tsinghua-Berkeley Shenzhen Institute, Tsinghua University, 1001 Xueyuan Road, Shenzhen, 518055, P. R. China
| | - Wencai Ren
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang, 110016, P. R. China
- School of Materials Science and Engineering, University of Science and Technology of China, Shenyang, 110016, P. R. China
| |
Collapse
|
28
|
Zhou X, Luo B, Kang K, Zhang Y, Jiang P, Lan F, Yi Q, Wu Y. Leukocyte-Repelling Biomimetic Immunomagnetic Nanoplatform for High-Performance Circulating Tumor Cells Isolation. Small 2019; 15:e1900558. [PMID: 30932344 DOI: 10.1002/smll.201900558] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Revised: 03/06/2019] [Indexed: 05/20/2023]
Abstract
Downstream studies of circulating tumor cells (CTCs), which may provide indicative evaluation information for therapeutic efficacy, cancer metastases, and cancer prognosis, are seriously hindered by the poor purity of enriched CTCs as large amounts of interfering leukocytes still nonspecifically bind to the isolation platform. In this work, biomimetic immunomagnetic nanoparticles (BIMNs) with the following features are designed: i) the leukocyte membrane camouflage, which could greatly reduce homologous leukocyte interaction and actualize high-purity CTCs isolation, is easily extracted by graphene nanosheets; ii) facile antibody conjugation can be achieved through the "insertion" of biotinylated lipid molecules into leukocyte-membrane-coated nanoparticles and streptavidin conjunction; iii) layer-by-layer assembly techniques could integrate high-magnetization Fe3 O4 nanoparticles and graphene nanosheets efficiently. Consequently, the resulting BIMNs achieve a capture efficiency above 85.0% and CTCs purity higher than 94.4% from 1 mL blood with 20-200 CTCs after 2 min incubation. Besides, 98.0% of the isolated CTCs remain viable and can be directly cultured in vitro. Moreover, application of the BIMNs to cancer patients' peripheral blood shows good reproducibility (mean relative standard deviation 8.7 ± 5.6%). All results above suggest that the novel biomimetic nanoplatform may serve as a promising tool for CTCs enrichment and detection from clinical samples.
Collapse
Affiliation(s)
- Xiaoxi Zhou
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, 610064, P. R. China
| | - Bin Luo
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, 610064, P. R. China
| | - Ke Kang
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, 610064, P. R. China
| | - Yujia Zhang
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, 610064, P. R. China
| | - Peipei Jiang
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, 610064, P. R. China
| | - Fang Lan
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, 610064, P. R. China
| | - Qiangying Yi
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, 610064, P. R. China
| | - Yao Wu
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, 610064, P. R. China
| |
Collapse
|
29
|
Gao YX, Zou JW, Wang XF, Yang J, Li Z, Zhu YY, Wang HM. An Approach to the Uniform Dispersion of Graphene Nanosheets in Powder Metallurgy Nickel-Based Superalloy. Materials (Basel) 2019; 12:E974. [PMID: 30909633 DOI: 10.3390/ma12060974] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Revised: 03/19/2019] [Accepted: 03/21/2019] [Indexed: 11/17/2022]
Abstract
In this paper, a wet-chemical based method was adopted to acquire the uniform dispersion of graphene nanosheets (GNSs) in a powder metallurgy nickel-based superalloy (FGH96) to fabricate a new GNSs reinforced FGH96 metal matrix composite. The surface of the FGH96 powder was modified using a hydrophilic surfactant named polyvinyl alcohol (PVA), which has good wettability and strong hydrogen bonding between the ⁻OH groups of PVA and oxygen groups of GNSs such as ⁻COOH, ⁻CHO, and ⁻OH. It was shown that the GNSs displayed much better dispersion uniformity on the PVA modified FGH96 powder than the unmodified one. The existence of PVA improved the adsorptive capacity of the GNSs attached on the powder surface and prevented the agglomeration in the following thermal preparation process. Consequently, the micro-hardness of PVA modified composite with 0.1 wt.% GNSs reached 497.9 HV, 3.4% higher than the unmodified FGH96 alloy. Therefore, this preparation process could act as the foundation of a common strategy for the fabrication of GNSs in metal matrix composites with good dispersion uniformity, which may have great potential application in aerospace applications.
Collapse
|
30
|
Chen X, Liu D, Cao G, Tang Y, Wu C. In Situ Synthesis of a Sandwich-like Graphene@ZIF-67 Heterostructure for Highly Sensitive Nonenzymatic Glucose Sensing in Human Serums. ACS Appl Mater Interfaces 2019; 11:9374-9384. [PMID: 30727733 DOI: 10.1021/acsami.8b22478] [Citation(s) in RCA: 61] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Metal-organic frameworks (MOFs) have been extensively studied in recent years due to their tunable porosity, huge specific area, and controllable structure. The rich metal centers and large specific area have endowed MOFs with excellent electrochemical activity due to the multiple valence states, but the poor electronic conductivity of MOFs seriously impedes their electrocatalytic performance. Here, a polyhedral Co-based zeolite imidazole frame [Co(mim)2] n (denoted as ZIF-67, mim = 2-methylimidazole) is in situ loaded on the two sides of physically exfoliated graphene nanosheets (GSs) at room temperature, and sandwich-like GS@ZIF-67 hybrids with an ordered nanostructure are easily obtained. Compared with each individual component, the as-synthesized GS@ZIF-67 hybrids exhibit higher electrochemical activity toward glucose oxidation. Besides, the hierarchical nanocomposites also show better electrocatalytic performance compared with the same ratio of a physical mixture of GSs and ZIF-67, further demonstrating the synergistic effect between ZIF-67 and GSs. Thus, a highly sensitive nonenzymatic glucose electrochemical sensor is proposed with a linear range of 1-805.5 μM, sensitivity of 1521.1 μA Mm-1 cm-2, detection limit of 0.36 μM (S/N = 3), and excellent stability and selectivity. More importantly, the newly fabricated sensor is also successfully applied for glucose determination in human serums with satisfactory results, suggesting its promising potential toward glucose detection in real samples.
Collapse
Affiliation(s)
- Xuerong Chen
- Faculty of Materials Science & Engineering , Hubei University , Wuhan 430062 , China
- School of Laboratory Medicine , Hubei University of Chinese Medicine , Wuhan 430065 , China
| | - Dan Liu
- College of Chemistry and Chemical Engineering , Hunan Normal University , Changsha 410081 , China
| | - Guojun Cao
- Department of Hepatobiliary Surgery, Union Hospital , Tongji Medical College, Huazhong University of Science and Technology , Wuhan 430022 , China
| | - Yong Tang
- Department of Hepatobiliary Surgery, Union Hospital , Tongji Medical College, Huazhong University of Science and Technology , Wuhan 430022 , China
| | - Can Wu
- Faculty of Materials Science & Engineering , Hubei University , Wuhan 430062 , China
| |
Collapse
|
31
|
Amaro-Gahete J, Benítez A, Otero R, Esquivel D, Jiménez-Sanchidrián C, Morales J, Caballero Á, Romero-Salguero FJ. A Comparative Study of Particle Size Distribution of Graphene Nanosheets Synthesized by an Ultrasound-Assisted Method. Nanomaterials (Basel) 2019; 9:nano9020152. [PMID: 30691102 PMCID: PMC6409618 DOI: 10.3390/nano9020152] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/24/2018] [Revised: 01/20/2019] [Accepted: 01/23/2019] [Indexed: 12/12/2022]
Abstract
Graphene-based materials are highly interesting in virtue of their excellent chemical, physical and mechanical properties that make them extremely useful as privileged materials in different industrial applications. Sonochemical methods allow the production of low-defect graphene materials, which are preferred for certain uses. Graphene nanosheets (GNS) have been prepared by exfoliation of a commercial micrographite (MG) using an ultrasound probe. Both materials were characterized by common techniques such as X-ray diffraction (XRD), Transmission Electronic Microscopy (TEM), Raman spectroscopy and X-ray photoelectron spectroscopy (XPS). All of them revealed the formation of exfoliated graphene nanosheets with similar surface characteristics to the pristine graphite but with a decreased crystallite size and number of layers. An exhaustive study of the particle size distribution was carried out by different analytical techniques such as dynamic light scattering (DLS), nanoparticle tracking analysis (NTA) and asymmetric flow field flow fractionation (AF4). The results provided by these techniques have been compared. NTA and AF4 gave higher resolution than DLS. AF4 has shown to be a precise analytical technique for the separation of GNS of different sizes.
Collapse
Affiliation(s)
- Juan Amaro-Gahete
- Departamento de Química Orgánica, Instituto Universitario de Investigación en Química Fina y Nanoquímica, Facultad de Ciencias, Universidad de Córdoba, 14071 Córdoba, Spain.
| | - Almudena Benítez
- Departamento de Química Inorgánica e Ingeniería Química, Instituto Universitario de Investigación en Química Fina y Nanoquímica, Facultad de Ciencias, Universidad de Córdoba, 14071 Córdoba, Spain.
| | - Rocío Otero
- Departamento de Química Inorgánica e Ingeniería Química, Instituto Universitario de Investigación en Química Fina y Nanoquímica, Facultad de Ciencias, Universidad de Córdoba, 14071 Córdoba, Spain.
| | - Dolores Esquivel
- Departamento de Química Orgánica, Instituto Universitario de Investigación en Química Fina y Nanoquímica, Facultad de Ciencias, Universidad de Córdoba, 14071 Córdoba, Spain.
| | - César Jiménez-Sanchidrián
- Departamento de Química Orgánica, Instituto Universitario de Investigación en Química Fina y Nanoquímica, Facultad de Ciencias, Universidad de Córdoba, 14071 Córdoba, Spain.
| | - Julián Morales
- Departamento de Química Inorgánica e Ingeniería Química, Instituto Universitario de Investigación en Química Fina y Nanoquímica, Facultad de Ciencias, Universidad de Córdoba, 14071 Córdoba, Spain.
| | - Álvaro Caballero
- Departamento de Química Inorgánica e Ingeniería Química, Instituto Universitario de Investigación en Química Fina y Nanoquímica, Facultad de Ciencias, Universidad de Córdoba, 14071 Córdoba, Spain.
| | - Francisco J Romero-Salguero
- Departamento de Química Orgánica, Instituto Universitario de Investigación en Química Fina y Nanoquímica, Facultad de Ciencias, Universidad de Córdoba, 14071 Córdoba, Spain.
| |
Collapse
|
32
|
Haghighi M, Shaeri MH, Sedghi A, Djavanroodi F. Effect of Graphene Nanosheets Content on Microstructure and Mechanical Properties of Titanium Matrix Composite Produced by Cold Pressing and Sintering. Nanomaterials (Basel) 2018; 8:nano8121024. [PMID: 30544792 PMCID: PMC6316666 DOI: 10.3390/nano8121024] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/17/2018] [Revised: 12/04/2018] [Accepted: 12/05/2018] [Indexed: 01/19/2023]
Abstract
The effect of graphene nanosheet (GNS) reinforcement on the microstructure and mechanical properties of the titanium matrix composite has been discussed. For this purpose, composites with various GNS contents were prepared by cold pressing and sintering at various time periods. Density calculation by Archimedes’ principle revealed that Ti/GNSs composites with reasonable high density (more than 99.5% of theoretical density) were produced after sintering for 5 h. Microstructural analysis by X-ray diffraction (XRD) and a field emission scanning electron microscope (FESEM) showed that TiC particles were formed in the matrix during the sintering process as a result of a titanium reaction with carbon. Higher GNS content as well as sintering time resulted in an increase in TiC particle size and volume fraction. Microhardness and shear punch tests demonstrated considerable improvement of the specimens’ mechanical properties with the increment of sintering time and GNS content up to 1 wt. %. The microhardness and shear strength of 1 wt. % GNS composites were enhanced from 316 HV and 610 MPa to 613 HV and 754 MPa, respectively, when composites sintered for 5 h. It is worth mentioning that the formation of the agglomerates of unreacted GNSs in 1.5 wt. % GNS composites resulted in a dramatic decrease in mechanical properties.
Collapse
Affiliation(s)
- Milad Haghighi
- Department of Materials Science and Engineering, Imam Khomeini International University (IKIU), Qazvin 3414916818, Iran.
| | - Mohammad Hossein Shaeri
- Department of Materials Science and Engineering, Imam Khomeini International University (IKIU), Qazvin 3414916818, Iran.
| | - Arman Sedghi
- Department of Materials Science and Engineering, Imam Khomeini International University (IKIU), Qazvin 3414916818, Iran.
| | - Faramarz Djavanroodi
- Mechanical Engineering Department, Prince Mohammad Bin Fahd University, Al Khobar 31952, Saudi Arabia.
- Department of Mechanical Engineering, Imperial Collage London, London SW7, UK.
| |
Collapse
|
33
|
Zhang C, Zhai T, Zhan C, Fu Q, Ma C. Actuation Behavior of Multilayer Graphene Nanosheets/Polydimethylsiloxane Composite Films. Polymers (Basel) 2018; 10:E1243. [PMID: 30961168 PMCID: PMC6401678 DOI: 10.3390/polym10111243] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2018] [Revised: 11/06/2018] [Accepted: 11/07/2018] [Indexed: 11/16/2022] Open
Abstract
The graphene nanosheets (GNS)/polydimethylsiloxane (PDMS) composite films with out-of-plane dielectric actuation behavior were prepared through a layer-by-layer spin coating process. The GNS-PDMS/PDMS composite films with 1~3 layers of GNS-PDMS films were spin coated on top of the PDMS film. The dielectric, mechanical, and electromechanical actuation properties of the composite films were investigated. The dielectric constant of the GNS-PDMS³/PDMS composite film at 1 kHz is 5.52, which is 1.7 times that of the GNS-PDMS¹/PDMS composite film. The actuated displacement of the GNS-PDMS/PDMS composite films is greatly enhanced by increasing the number of GNS-PDMS layers. This study provides a novel alternative approach for fabricating high-performance actuators with out-of-plane actuation behavior.
Collapse
Affiliation(s)
- Chunmei Zhang
- College of Chemistry and Materials Engineering, Guiyang University, Guiyang 550005, China.
| | - Tianliang Zhai
- Guizhou Building Material Quality Supervision Testing Center, Guiyang 550000, China.
| | - Chao Zhan
- Guizhou Building Material Quality Supervision Testing Center, Guiyang 550000, China.
| | - Qiuping Fu
- College of Chemistry and Materials Engineering, Guiyang University, Guiyang 550005, China.
| | - Chao Ma
- College of Chemistry and Materials Engineering, Guiyang University, Guiyang 550005, China.
| |
Collapse
|
34
|
Zhou X, Huang W, Shi C, Wang K, Zhang R, Guo J, Wen Y, Zhang S, Wang Q, Huang L, Li J, Zhou X, Sun S. Enabling Lithium-Metal Anode Encapsulated in a 3D Carbon Skeleton with a Superior Rate Performance and Capacity Retention in Full Cells. ACS Appl Mater Interfaces 2018; 10:35296-35305. [PMID: 30247014 DOI: 10.1021/acsami.8b13506] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Suppressing the formation of lithium (Li) dendrites is central to implementing Li-metal anode, which has gained growing attention due to its ultrahigh specific capacity and low redox potential. Here, a novel approach is adopted to deposit Li-metal within a rigid three-dimensional (3D) carbon paper (3DCP) network, which consists of a cross-link framework of carbon fibers and graphene nanosheets (GNs). This unique structure yields a uniform distribution of Li-nuclei during the preliminary stage of Li-plating and the formation of a stable solid-electrolyte interface. The as-obtained anode can deliver a high areal capacity of 10 mAh cm-2 without the dendritic formation after 1000 cycles in a Li@3DCP/LiFePO4 full cell at 4 C. In addition, the Li@3DCP anode displays low voltage platform (<20 mV at 1 mA cm-2), high plating/stripping efficiency (99.0%), and long lifespan (>1000 h). When coupled with LiNi0.8Co0.15Al0.05O2 cathode, the Li@3DCP electrode exhibits a superior rate capability up to 10 C and high temperature performance (60 °C). The unprecedented performance is attributed to the desirable combination of micro/nanostructures in 3DCP, in which carbon fiber framework provides the mechanical stability for volume change, whereas numerous lithiophilicity sites on GNs enable the suppression of Li-dendrite growth.
Collapse
Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | - XiaoDong Zhou
- Institute for Materials Research and Innovation, Department of Chemical Engineering , University of Louisiana at Lafayette , Lafayette , Louisiana 70504 , United States
| | | |
Collapse
|
35
|
Zhou X, Liu Y, Du C, Ren Y, Li X, Zuo P, Yin G, Ma Y, Cheng X, Gao Y. Free-Standing Sandwich-Type Graphene/Nanocellulose/Silicon Laminar Anode for Flexible Rechargeable Lithium Ion Batteries. ACS Appl Mater Interfaces 2018; 10:29638-29646. [PMID: 30091890 DOI: 10.1021/acsami.8b10066] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Freely deformable and free-standing electrodes together with high capacity are crucial to realizing flexible Li-ion batteries. Herein, a lamellar graphene/nanocellulose/silicon (GN/NC/Si) film assembled by interpenetrated GN nanosheets is synthesized via a facile vacuum-assisted filtration approach accompanied by the covalent cross-linking effect of glutaraldehyde. The hybrid film consists of the highly conductive GN matrix as an effective current collector, hydroxylated silicon nanoparticles (Si NPs) embedded uniformly within GN interlayer and NC as adhesive to cross-link GN and Si NPs. When applied as anode, the GN/NC/Si film exhibits a high reversible capacity of 1251 mA h g-1 at 100 mA g-1 after 100 cycles and superior rate capability. More importantly, in the stress-strain test, this film represents robust mechanical strength, which not only provides good flexibility but also accommodates volume change of Si during cycling. By coupling with lithium cobalt oxide as the cathode, the full cell successfully powers a light-emitting diode, even bended and folded, indicating the deformation-tolerant GN/NC/Si film electrode for flexible Li-ion batteries. Therefore, the design of layered nanocomposites will offer the possibility closer to the application of flexible batteries.
Collapse
|
36
|
Yang R, Wang B, Xiang J, Mu C, Zhang C, Wen F, Wang C, Su C, Liu Z. Fabrication of NiCo 2-Anchored Graphene Nanosheets by Liquid-Phase Exfoliation for Excellent Microwave Absorbers. ACS Appl Mater Interfaces 2017; 9:12673-12679. [PMID: 28346825 DOI: 10.1021/acsami.6b16144] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Graphene nanosheets (GNSs) were prepared by an efficient liquid-phase exfoliation method, and then the NiCo2/GNS nanohybrids were fabricated using the single-mode microwave-assisted hydrothermal technique. The NiCo2/GNS composites with different GNS proportions were investigated as microwave absorbers. Morphology investigation suggested that NiCo2 nanocrystals were uniformly anchored on the GNS without aggregation. The electromagnetic parameters of NiCo2/GNS nanohybrids could be artificially adjusted by changing the GNS proportion, which led to an exceptional microwave-absorbing performance. A reflection loss (RL) exceeding -20 dB was obtained in the frequency range of 5.3-16.4 GHz for the absorber thicknesses of 1.2-3.2 mm, while an optimal RL of -30 dB was achieved at 11.7 GHz for a thickness of 1.6 mm. The enhanced microwave-absorbing performance indicated that the NiCo2/10 wt % GNS composite has great potential for use as an excellent microwave absorber.
Collapse
Affiliation(s)
- Ruilong Yang
- State Key Laboratory of Metastable Materials Science and Technology and ‡School of Science, Yanshan University , Qinhuangdao 066004, People's Republic of China
| | - Bochong Wang
- State Key Laboratory of Metastable Materials Science and Technology and ‡School of Science, Yanshan University , Qinhuangdao 066004, People's Republic of China
| | - Jianyong Xiang
- State Key Laboratory of Metastable Materials Science and Technology and ‡School of Science, Yanshan University , Qinhuangdao 066004, People's Republic of China
| | - Congpu Mu
- State Key Laboratory of Metastable Materials Science and Technology and ‡School of Science, Yanshan University , Qinhuangdao 066004, People's Republic of China
| | - Can Zhang
- State Key Laboratory of Metastable Materials Science and Technology and ‡School of Science, Yanshan University , Qinhuangdao 066004, People's Republic of China
| | - Fusheng Wen
- State Key Laboratory of Metastable Materials Science and Technology and ‡School of Science, Yanshan University , Qinhuangdao 066004, People's Republic of China
| | - Cong Wang
- State Key Laboratory of Metastable Materials Science and Technology and ‡School of Science, Yanshan University , Qinhuangdao 066004, People's Republic of China
| | - Can Su
- State Key Laboratory of Metastable Materials Science and Technology and ‡School of Science, Yanshan University , Qinhuangdao 066004, People's Republic of China
| | - Zhongyuan Liu
- State Key Laboratory of Metastable Materials Science and Technology and ‡School of Science, Yanshan University , Qinhuangdao 066004, People's Republic of China
| |
Collapse
|
37
|
Shen Y, Gong B, Xiao K, Wang L. In Situ Assembly of Ultrathin PtRh Nanowires to Graphene Nanosheets as Highly Efficient Electrocatalysts for the Oxidation of Ethanol. ACS Appl Mater Interfaces 2017; 9:3535-3543. [PMID: 28060480 DOI: 10.1021/acsami.6b09573] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
One-dimensional (1D) anisotropic platinum-based nanowires are promising electrocatalysts in polymer electrolyte membrane fuel cells owing to the inherent structural merits. Herein, we report an in situ growth of ultrathin PtRh nanowires (diameters of 2-3 nm) on graphene nanosheets via the oriented attachment pathway. Mechanistic studies reveal that graphene nanosheets play a critical role in the nucleation and growth of PtRh nanowires. The resulting hybrid of PtRh nanowire decorated graphene nanosheets shows outstanding activity and durability toward ethanol electro-oxidation. It exhibits a specific current density of 2.8 mA cm-2 and a mass-normalized current density of 1 A mg-1 metal, which are 5.4 and 3.1 times those of the state-of-the-art Pt/C catalyst, respectively. After 2000 cyclic tests, it maintains 86% of the initial electrochemically active surface area, which is larger than that of 63% obtained from the Pt/C catalyst. The superior performance is attributed to the combination of the advantageous 1D morphological motif with the synergistic effects of PtRh alloys and graphene nanosheet support.
Collapse
Affiliation(s)
- Yi Shen
- School of Food Science and Engineering, South China University of Technology , Guangzhou 510640, People's Republic of China
| | - Bin Gong
- School of Food Science and Engineering, South China University of Technology , Guangzhou 510640, People's Republic of China
| | - Kaijun Xiao
- School of Food Science and Engineering, South China University of Technology , Guangzhou 510640, People's Republic of China
| | - Lei Wang
- Shenzhen Key Laboratory of Polymer Science and Technology, College of Materials Science and Engineering, Shenzhen University , Shenzhen 518060, People's Republic of China
| |
Collapse
|
38
|
Song N, Jiao D, Cui S, Hou X, Ding P, Shi L. Highly Anisotropic Thermal Conductivity of Layer-by-Layer Assembled Nanofibrillated Cellulose/ Graphene Nanosheets Hybrid Films for Thermal Management. ACS Appl Mater Interfaces 2017; 9:2924-2932. [PMID: 28045485 DOI: 10.1021/acsami.6b11979] [Citation(s) in RCA: 58] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
An anisotropic thermally conductive film with tailorable microstructures and macroproperties is fabricated using a layer-by-layer (LbL) assembly of graphene oxide (GO) and nanofibrillated cellulose (NFC) on a flexible NFC substrate driven by hydrogen bonding interactions, followed by chemical reduction process. The resulting NFC/reduced graphene oxide (RGO) hybrid film reveals an orderly hierarchical structure in which the RGO nanosheets exhibit a high degree of orientation along the in-plane direction. The assembly cycles dramatically increase the in-plane thermal conductivity (λX) of the hybrid film to 12.6 W·m-1·K-1, while the cross-plane thermal conductivity (λZ) shows a lower value of 0.042 W·m-1·K-1 in the hybrid film with 40 assembly cycles. The thermal conductivity anisotropy reaches up to λX/λZ = 279, which is substantially larger than that of similar polymeric nanocomposites, indicating that the LbL assembly on a flexible NFC substrate is an efficient technique for the preparation of polymeric nanocomposites with improved heat conducting property. Moreover, the layered hybrid film composed of 1D NFC and 2D RGO exhibits synergetic mechnical properties with outstanding flexibility and a high tensile strength (107 MPa). The combination of anisotropic thermal conductivity and superior mechanical performance may facilitate the applications in thermal management.
Collapse
Affiliation(s)
- Na Song
- Research Centre of Nanoscience and Nanotechnology, Shanghai University , 99 Shangda Road, Shanghai 200444, People's Republic of China
| | - Dejin Jiao
- Research Centre of Nanoscience and Nanotechnology, Shanghai University , 99 Shangda Road, Shanghai 200444, People's Republic of China
| | - Siqi Cui
- Research Centre of Nanoscience and Nanotechnology, Shanghai University , 99 Shangda Road, Shanghai 200444, People's Republic of China
| | - Xingshuang Hou
- Research Centre of Nanoscience and Nanotechnology, Shanghai University , 99 Shangda Road, Shanghai 200444, People's Republic of China
| | - Peng Ding
- Research Centre of Nanoscience and Nanotechnology, Shanghai University , 99 Shangda Road, Shanghai 200444, People's Republic of China
| | - Liyi Shi
- Research Centre of Nanoscience and Nanotechnology, Shanghai University , 99 Shangda Road, Shanghai 200444, People's Republic of China
| |
Collapse
|
39
|
Abstract
In recent years, heterogeneous photocatalysis has received much research interest because of its powerful potential applications in tackling many important energy and environmental challenges at a global level in an economically sustainable manner. Due to their unique optical, electrical, and physicochemical properties, various 2D graphene nanosheets-supported semiconductor composite photocatalysts have been widely constructed and applied in different photocatalytic fields. In this review, fundamental mechanisms of heterogeneous photocatalysis, including thermodynamic and kinetics requirements, are first systematically summarized. Then, the photocatalysis-related properties of graphene and its derivatives, and design rules and synthesis methods of graphene-based composites are highlighted. Importantly, different design strategies, including doping and sensitization of semiconductors by graphene, improving electrical conductivity of graphene, increasing eloectrocatalytic active sites on graphene, strengthening interface coupling between semiconductors and graphene, fabricating micro/nano architectures, constructing multi-junction nanocomposites, enhancing photostability of semiconductors, and utilizing the synergistic effect of various modification strategies, are thoroughly summarized. The important applications including photocatalytic pollutant degradation, H2 production, and CO2 reduction are also addressed. Through reviewing the significant advances on this topic, it may provide new opportunities for designing highly efficient 2D graphene-based photocatalysts for various applications in photocatalysis and other fields, such as solar cells, thermal catalysis, separation, and purification.
Collapse
Affiliation(s)
- Xin Li
- College of Materials and Energy, South China Agricultural University, Guangzhou, 510642, P. R. China
- Key Laboratory of Energy Plants Resource and Utilization, Ministry of Agriculture, Institute of New Energy and New Materials, South China Agricultural University, Guangzhou, 510642, P. R. China
| | - Jiaguo Yu
- State Key Laboratory of Advanced Technology for Material Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, P. R. China
- Department of Physics, Faculty of Science, King Abdulaziz University, Jeddah, 21589, Saudi Arabia
| | - S Wageh
- Department of Physics, Faculty of Science, King Abdulaziz University, Jeddah, 21589, Saudi Arabia
| | - Ahmed A Al-Ghamdi
- Department of Physics, Faculty of Science, King Abdulaziz University, Jeddah, 21589, Saudi Arabia
| | - Jun Xie
- Key Laboratory of Energy Plants Resource and Utilization, Ministry of Agriculture, Institute of New Energy and New Materials, South China Agricultural University, Guangzhou, 510642, P. R. China
| |
Collapse
|
40
|
Siontorou CG, Georgopoulos KN, Nikoleli GP, Nikolelis DP, Karapetis SK, Bratakou S. Protein-Based Graphene Biosensors: Optimizing Artificial Chemoreception in Bilayer Lipid Membranes. Membranes (Basel) 2016; 6:E43. [PMID: 27618113 PMCID: PMC5041034 DOI: 10.3390/membranes6030043] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/19/2016] [Revised: 09/02/2016] [Accepted: 09/05/2016] [Indexed: 11/19/2022]
Abstract
Proteinaceous moieties are critical elements in most detection systems, including biosensing platforms. Their potential is undoubtedly vast, yet many issues regarding their full exploitation remain unsolved. On the other hand, the biosensor formats with the higher marketability probabilities are enzyme in nature and electrochemical in concept. To no surprise, alternative materials for hosting catalysis within an electrode casing have received much attention lately to demonstrate a catalysis-coated device. Graphene and ZnO are presented as ideal materials to modify electrodes and biosensor platforms, especially in protein-based detection. Our group developed electrochemical sensors based on these nanomaterials for the sensitive detection of cholesterol using cholesterol oxidase incorporated in stabilized lipid films. A comparison between the two platforms is provided and discussed. In a broader sense, the not-so-remote prospect of quickly assembling a protein-based flexible biosensing detector to fulfill site-specific requirements is appealing to both university researchers and industry developers.
Collapse
Affiliation(s)
- Christina G Siontorou
- Laboratory of Simulation of Industrial Processes, Department of Industrial Management and Technology, School of Maritime and Industry, University of Piraeus, Piraeus 18534, Greece.
| | - Konstantinos N Georgopoulos
- Laboratory of Simulation of Industrial Processes, Department of Industrial Management and Technology, School of Maritime and Industry, University of Piraeus, Piraeus 18534, Greece.
| | - Georgia-Paraskevi Nikoleli
- Laboratory of Inorganic & Analytical Chemistry, School of Chemical Engineering, Department of Chemical Sciences, National Technical University of Athens, Athens 15780, Greece.
| | - Dimitrios P Nikolelis
- Laboratory of Environmental Chemistry, Department of Chemistry, University of Athens, Athens 15771, Greece.
| | - Stefanos K Karapetis
- Laboratory of Inorganic & Analytical Chemistry, School of Chemical Engineering, Department of Chemical Sciences, National Technical University of Athens, Athens 15780, Greece.
| | - Spyridoula Bratakou
- Laboratory of Inorganic & Analytical Chemistry, School of Chemical Engineering, Department of Chemical Sciences, National Technical University of Athens, Athens 15780, Greece.
| |
Collapse
|
41
|
Yang S, Chen F, Shen Q, Lavernia EJ, Zhang L. Microstructure and Electrical Properties of AZO/ Graphene Nanosheets Fabricated by Spark Plasma Sintering. Materials (Basel) 2016; 9:ma9080638. [PMID: 28773759 PMCID: PMC5509084 DOI: 10.3390/ma9080638] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/12/2016] [Revised: 06/17/2016] [Accepted: 07/20/2016] [Indexed: 12/02/2022]
Abstract
In this study we report on the sintering behavior, microstructure and electrical properties of Al-doped ZnO ceramics containing 0–0.2 wt. % graphene sheets (AZO-GNSs) and processed using spark plasma sintering (SPS). Our results show that the addition of <0.25 wt. % GNSs enhances both the relative density and the electrical resistivity of AZO ceramics. In terms of the microstructure, the GNSs are distributed at grain boundaries. In addition, the GNSs are also present between ZnO and secondary phases (e.g., ZnAl2O4) and likely contribute to the measured enhancement of Hall mobility (up to 105.1 cm2·V−1·s−1) in these AZO ceramics. The minimum resistivity of the AZO-GNS composite ceramics is 3.1 × 10−4 Ω·cm which compares favorably to the value of AZO ceramics which typically have a resistivity of 1.7 × 10−3 Ω·cm.
Collapse
Affiliation(s)
- Shuang Yang
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China.
| | - Fei Chen
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China.
| | - Qiang Shen
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China.
| | - Enrique J Lavernia
- Department of Chemical Engineering and Materials Science, University of California, Davis, CA 95616, USA.
| | - Lianmeng Zhang
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China.
| |
Collapse
|
42
|
Sun Q, Wang Z, Zhang Z, Yu Q, Qu Y, Zhang J, Yu Y, Xiang B. Rational Design of Graphene-Reinforced MnO Nanowires with Enhanced Electrochemical Performance for Li-Ion Batteries. ACS Appl Mater Interfaces 2016; 8:6303-6308. [PMID: 26894410 DOI: 10.1021/acsami.6b00122] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Recently, transition metal oxides (TMOs) mixed with carbon materials have attracted attention as lithium-ion battery (LIB) anode materials. However, the aggregation issue in TMOs hinders the development of an ideal encapsulation structure with carbon materials. In this paper, we report graphene reinforced MnO nanowires with enhanced electrochemical performance as an anode in LIB. The graphene nanosheets (GNs)/MnO feature was confirmed by transmission electron microscopy, X-ray diffraction, Raman scattering, and X-ray photoelectron spectroscopy. The GNs/MnO nanowires delivered a highly stable discharge capacity of ∼815 mAh g(-1) at a current density of 100 mA g(-1) after 200 cycles, which is 1.5 times higher than that of pure MnO nanowires. This GNs/MnO structure with a specific capacity of ∼995 mAh g(-1) at a current density of 50 mA g(-1) also exhibited excellent Li storage properties. The superior cycling and high rate capability were attributed to the intimate incorporation between the MnO and GNs. The structure of the GNs/MnO nanowires effectively accommodated the volume change of the MnO nanowires and prevented structure collapse during cycling.
Collapse
Affiliation(s)
- Qi Sun
- Department of Materials Science & Engineering, CAS Key Lab of Materials for Energy Conversion, Synergetic Innovation Center of Quantum Information Quantum Physics, University of Science and Technology of China , Hefei, Anhui 230026, China
| | - Zhijie Wang
- Department of Materials Science & Engineering, CAS Key Lab of Materials for Energy Conversion, Synergetic Innovation Center of Quantum Information Quantum Physics, University of Science and Technology of China , Hefei, Anhui 230026, China
| | - Zijiao Zhang
- Center of Electron Microscopy and State Key Laboratory of Silicon Materials, Department of Materials Science & Engineering, Zhejiang University , Hangzhou, Zhejiang 310027, China
| | - Qian Yu
- Center of Electron Microscopy and State Key Laboratory of Silicon Materials, Department of Materials Science & Engineering, Zhejiang University , Hangzhou, Zhejiang 310027, China
| | - Yan Qu
- The Sixth Element Materials Technology Co. Ltd , Changzhou, Jiangsu 213145, China
| | - Jingyu Zhang
- Molecular Foundry, Lawrence Berkeley National Laboratory , 1 Cyclotron Road, Berkeley, California 94720, United States
| | - Yan Yu
- Department of Materials Science & Engineering, CAS Key Lab of Materials for Energy Conversion, Synergetic Innovation Center of Quantum Information Quantum Physics, University of Science and Technology of China , Hefei, Anhui 230026, China
| | - Bin Xiang
- Department of Materials Science & Engineering, CAS Key Lab of Materials for Energy Conversion, Synergetic Innovation Center of Quantum Information Quantum Physics, University of Science and Technology of China , Hefei, Anhui 230026, China
| |
Collapse
|
43
|
Wang T, Hu P, Zhang C, Du H, Zhang Z, Wang X, Chen S, Xiong J, Cui G. Nickel Disulfide- Graphene Nanosheets Composites with Improved Electrochemical Performance for Sodium Ion Battery. ACS Appl Mater Interfaces 2016; 8:7811-7817. [PMID: 26986716 DOI: 10.1021/acsami.6b00179] [Citation(s) in RCA: 57] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Nickel disulfide-graphene nanosheets (NiS2-GNS) composites were successfully synthesized via a simple and mild hydrothermal method. It was revealed by scanning electron microscopy and transmission electron microscopy images that the spherical NiS2 nanoparticles with a diameter of 200-300 nm were uniformly dispersed on graphene nanosheets. Na(+) electrochemical storage properties including cycling performance and high-rate capability of NiS2-GNS composites were investigated, demonstrating a superior reversible capacity of 407 mAh g(-1) with the capacity retention of 77% over 200 cycles at a current density of 0.1 C. Furthermore, even at a large current density of 2 C, a high capacity of 168 mAh g(-1) can still remain, which is much higher than that of pristine NiS2 materials. The enhancement in electrochemical properties might be attributed to the synergetic effect endowed by high conductivity of graphene and novel structure of the electrode material. Combined with the advantages of low cost and environmental benignity, NiS2-GNS composite would be a potential anode material for sodium ion batteries.
Collapse
Affiliation(s)
- Tianshi Wang
- Institute of Materials Science and Engineering, Ocean University of China , Qingdao 266100, Shandong Province, P. R. China
- Qingdao Industrial Energy Storage Research Institute, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences , Qingdao 266101, P. R. China
| | - Pu Hu
- Qingdao Industrial Energy Storage Research Institute, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences , Qingdao 266101, P. R. China
| | - Chuanjian Zhang
- Qingdao Industrial Energy Storage Research Institute, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences , Qingdao 266101, P. R. China
| | - Huiping Du
- Qingdao Industrial Energy Storage Research Institute, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences , Qingdao 266101, P. R. China
| | - Zhonghua Zhang
- Qingdao Industrial Energy Storage Research Institute, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences , Qingdao 266101, P. R. China
| | - Xiaogang Wang
- Qingdao Industrial Energy Storage Research Institute, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences , Qingdao 266101, P. R. China
| | - Shougang Chen
- Institute of Materials Science and Engineering, Ocean University of China , Qingdao 266100, Shandong Province, P. R. China
| | - Junwei Xiong
- Key Laboratory for Liquid-Solid Structural Evolution & Processing of Materials (Ministry of Education), Shandong University , Jinan 250061, P. R. China
| | - Guanglei Cui
- Qingdao Industrial Energy Storage Research Institute, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences , Qingdao 266101, P. R. China
| |
Collapse
|
44
|
Bao J, Hou C, Chen M, Li J, Huo D, Yang M, Luo X, Lei Y. Plant Esterase-Chitosan/Gold Nanoparticles-Graphene Nanosheet Composite-Based Biosensor for the Ultrasensitive Detection of Organophosphate Pesticides. J Agric Food Chem 2015; 63:10319-10326. [PMID: 26554573 DOI: 10.1021/acs.jafc.5b03971] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
As broad-spectrum pesticides, organophosphates (OPs) are widely used in agriculture all over the world. However, due to their neurotoxicity in humans and their increasing occurrence in the environment, there is growing interest in their sensitive and selective detection. This paper reports a new cost-effective plant esterase-chitosan/gold nanoparticles-graphene nanosheet (PLaE-CS/AuNPs-GNs) biosensor for the sensitive detection of methyl parathion and malathion. Highly pure plant esterase is produced from plants at low cost and shares the same inhibition mechanism with OPs as acetylcholinesterase, and then it was used to prepare PLaE-CS/AuNPs-GNs nanocomposites, which were systematically characterized using SEM, TEM, and UV-vis. The PLaE-CS/AuNPs-GNs composite-based biosensor measured as low as 50 ppt (0.19 nM) of methyl parathion and 0.5 ppb (1.51 nM) of malathion (S/N = 3) with a calibration curve up to 200 ppb (760 nM) and 500 ppb (1513.5 nM) for methyl parathion and malathion, respectively. There is also no interference observed from most of common species such as metal ions, inorganic ions, glucose, and citric acid. In addition, its applicability to OPs-contaminated real samples (carrot and apple) was also demonstrated with excellent response recovery. The developed simple, sensitive, and reliable PLaE-CS/AuNPs-GNs composite-based biosensor holds great potential in OPs detection for food and environmental safety.
Collapse
Affiliation(s)
- Jing Bao
- Key Laboratory of Biorheological Science and Technology (Chongqing University), Ministry of Education, Bioengineering College, Chongqing University , Chongqing 400030, China
| | - Changjun Hou
- Key Laboratory of Biorheological Science and Technology (Chongqing University), Ministry of Education, Bioengineering College, Chongqing University , Chongqing 400030, China
| | - Mei Chen
- Key Laboratory of Biorheological Science and Technology (Chongqing University), Ministry of Education, Bioengineering College, Chongqing University , Chongqing 400030, China
| | - Junjie Li
- Key Laboratory of Biorheological Science and Technology (Chongqing University), Ministry of Education, Bioengineering College, Chongqing University , Chongqing 400030, China
| | - Danqun Huo
- Key Laboratory of Biorheological Science and Technology (Chongqing University), Ministry of Education, Bioengineering College, Chongqing University , Chongqing 400030, China
| | - Mei Yang
- Key Laboratory of Biorheological Science and Technology (Chongqing University), Ministry of Education, Bioengineering College, Chongqing University , Chongqing 400030, China
| | - Xiaogang Luo
- Key Laboratory of Biorheological Science and Technology (Chongqing University), Ministry of Education, Bioengineering College, Chongqing University , Chongqing 400030, China
| | - Yu Lei
- Department of Chemical and Biomolecular Engineering, University of Connecticut , 191 Auditorium Road, Unit 3222, Storrs, Connecticut 06269, United States
| |
Collapse
|
45
|
Huang R, Wang L, Zhang Q, Chen Z, Li Z, Pan D, Zhao B, Wu M, Wu CML, Shek CH. Irradiated Graphene Loaded with SnO₂ Quantum Dots for Energy Storage. ACS Nano 2015; 9:11351-11361. [PMID: 26434377 DOI: 10.1021/acsnano.5b05146] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Tin dioxide (SnO2) and graphene are unique strategic functional materials with widespread technological applications, particularly in the areas of solar batteries, optoelectronic devices, and solid-state gas sensors owing to advances in optical and electronic properties. Versatile strategies for microstructural evolution and related performance of SnO2 and graphene composites are of fundamental importance in the development of electrode materials. Here we report that a novel composite, SnO2 quantum dots (QDs) supported by graphene nanosheets (GNSs), has been prepared successfully by a simple hydrothermal method and electron-beam irradiation (EBI) strategies. Microstructure analysis indicates that the EBI technique can induce the exfoliation of GNSs and increase their interlayer spacing, resulting in the increase of GNS amorphization, disorder, and defects and the removal of partial oxygen-containing functional groups on the surface of GNSs. The investigation of SnO2 nanoparticles supported by GNSs (SnO2/GNSs) reveals that the GNSs are loaded with SnO2 QDs, which are dispersed uniformly on both sides of GNSs. Interestingly, the electrochemical performance of SnO2/GNSs indicates that SnO2 QDs supported by a 210 kGy irradiated GNS shows excellent cycle response, high specific capacity, and high reversible capacity. This novel SnO2/GNS composite has potential practical applications in SnO2 electrode materials during Li(+) insertion/extraction.
Collapse
Affiliation(s)
| | | | | | - Zhiwen Chen
- 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
| | - Chan-Hung Shek
- Department of Physics and Materials Science, City University of Hong Kong , Tat Chee Avenue, Kowloon Tong, Hong Kong
| |
Collapse
|
46
|
Wang L, Zhang Y, Cheng C, Liu X, Jiang H, Wang X. Highly Sensitive Electrochemical Biosensor for Evaluation of Oxidative Stress Based on the Nanointerface of Graphene Nanocomposites Blended with Gold, Fe3O4, and Platinum Nanoparticles. ACS Appl Mater Interfaces 2015; 7:18441-18449. [PMID: 26238430 DOI: 10.1021/acsami.5b04553] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
High levels of H2O2 pertain to high oxidative stress and are associated with cancer, autoimmune, and neurodegenerative disease, and other related diseases. In this study, a sensitive H2O2 biosensor for evaluation of oxidative stress was fabricated on the basis of the reduced graphene oxide (RGO) nanocomposites decorated with Au, Fe3O4, and Pt nanoparticles (RGO/AuFe3O4/Pt) modified glassy carbon electrode (GCE) and used to detect the released H2O2 from cancer cells and assess the oxidative stress elicited from H2O2 in living cells. Electrochemical behavior of RGO/AuFe3O4/Pt nanocomposites exhibits excellent catalytic activity toward the relevant reduction with high selection and sensitivity, low overpotential of 0 V, low detection limit of ∼0.1 μM, large linear range from 0.5 μM to 11.5 mM, and outstanding reproducibility. The as-prepared biosensor was applied in the measurement of efflux of H2O2 from living cells including healthy normal cells and tumor cells under the external stimulation. The results display that this new nanocomposites-based biosensor is a promising candidate of nonenzymatic H2O2 sensor which has the possibility of application in clinical diagnostics to assess oxidative stress of different kinds of living cells.
Collapse
Affiliation(s)
- Le Wang
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University , Nanjing 210096, China
| | - Yuanyuan Zhang
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University , Nanjing 210096, China
| | - Chuansheng Cheng
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University , Nanjing 210096, China
| | - Xiaoli Liu
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University , Nanjing 210096, China
| | - Hui Jiang
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University , Nanjing 210096, China
| | - Xuemei Wang
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University , Nanjing 210096, China
| |
Collapse
|
47
|
Zhu C, Yang P, Chao D, Wang X, Zhang X, Chen S, Tay BK, Huang H, Zhang H, Mai W, Fan HJ. All Metal Nitrides Solid-State Asymmetric Supercapacitors. Adv Mater 2015; 27:4566-71. [PMID: 26153405 DOI: 10.1002/adma.201501838] [Citation(s) in RCA: 130] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2015] [Revised: 05/20/2015] [Indexed: 05/26/2023]
Abstract
Two metal nitrides, TiN porous layers and Fe2 N nanoparticles, are grown uniformly with the assistance of atomic layer deposition on vertically aligned graphene nanosheets and used as the cathode and anode for solid-state supercapacitors, respectively. Full cells are constructed and show good flexibility, high-rate capability, and 98% capacitance retention after 20,000 cycles.
Collapse
Affiliation(s)
- Changrong Zhu
- School of Physical and Mathematical Sciences, Nanyang Technological University, 637371, Singapore, Singapore
- Singapore Institute of Manufacturing Technology, 71 Nanyang Drive, 638075, Singapore, Singapore
| | - Peihua Yang
- Department of Physics and Siyuan Laboratory, Jinan University, Guangzhou, 510632, P. R. China
| | - Dongliang Chao
- School of Physical and Mathematical Sciences, Nanyang Technological University, 637371, Singapore, Singapore
| | - Xingli Wang
- School of Electrical and Electronic Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore, Singapore
| | - Xiao Zhang
- School of Materials Science and Engineering, Nanyang Technological University, 639798, Singapore
| | - Shi Chen
- School of Physical and Mathematical Sciences, Nanyang Technological University, 637371, Singapore, Singapore
| | - Beng Kang Tay
- School of Electrical and Electronic Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore, Singapore
| | - Hui Huang
- Singapore Institute of Manufacturing Technology, 71 Nanyang Drive, 638075, Singapore, Singapore
| | - Hua Zhang
- School of Materials Science and Engineering, Nanyang Technological University, 639798, Singapore
| | - Wenjie Mai
- Department of Physics and Siyuan Laboratory, Jinan University, Guangzhou, 510632, P. R. China
| | - Hong Jin Fan
- School of Physical and Mathematical Sciences, Nanyang Technological University, 637371, Singapore, Singapore
| |
Collapse
|
48
|
Taratula O, Patel M, Schumann C, Naleway MA, Pang AJ, He H, Taratula O. Phthalocyanine-loaded graphene nanoplatform for imaging-guided combinatorial phototherapy. Int J Nanomedicine 2015; 10:2347-62. [PMID: 25848255 PMCID: PMC4378304 DOI: 10.2147/ijn.s81097] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
We report a novel cancer-targeted nanomedicine platform for imaging and prospect for future treatment of unresected ovarian cancer tumors by intraoperative multimodal phototherapy. To develop the required theranostic system, novel low-oxygen graphene nanosheets were chemically modified with polypropylenimine dendrimers loaded with phthalocyanine (Pc) as a photosensitizer. Such a molecular design prevents fluorescence quenching of the Pc by graphene nanosheets, providing the possibility of fluorescence imaging. Furthermore, the developed nanoplatform was conjugated with poly(ethylene glycol), to improve biocompatibility, and with luteinizing hormone-releasing hormone (LHRH) peptide, for tumor-targeted delivery. Notably, a low-power near-infrared (NIR) irradiation of single wavelength was used for both heat generation by the graphene nanosheets (photothermal therapy [PTT]) and for reactive oxygen species (ROS)-production by Pc (photodynamic therapy [PDT]). The combinatorial phototherapy resulted in an enhanced destruction of ovarian cancer cells, with a killing efficacy of 90%-95% at low Pc and low-oxygen graphene dosages, presumably conferring cytotoxicity to the synergistic effects of generated ROS and mild hyperthermia. An animal study confirmed that Pc loaded into the nanoplatform can be employed as a NIR fluorescence agent for imaging-guided drug delivery. Hence, the newly developed Pc-graphene nanoplatform has the significant potential as an effective NIR theranostic probe for imaging and combinatorial phototherapy.
Collapse
Affiliation(s)
- Olena Taratula
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, Portland, OR, USA
| | - Mehulkumar Patel
- Department of Chemistry, Rutgers University-Newark, Newark, NJ, USA
| | - Canan Schumann
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, Portland, OR, USA
| | - Michael A Naleway
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, Portland, OR, USA
| | - Addison J Pang
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, Portland, OR, USA
| | - Huixin He
- Department of Chemistry, Rutgers University-Newark, Newark, NJ, USA
| | - Oleh Taratula
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, Portland, OR, USA
| |
Collapse
|
49
|
Benson J, Xu Q, Wang P, Shen Y, Sun L, Wang T, Li M, Papakonstantinou P. Tuning the catalytic activity of graphene nanosheets for oxygen reduction reaction via size and thickness reduction. ACS Appl Mater Interfaces 2014; 6:19726-19736. [PMID: 25334050 DOI: 10.1021/am5048202] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Currently, the fundamental factors that control the oxygen reduction reaction (ORR) activity of graphene itself, in particular, the dependence of the ORR activity on the number of exposed edge sites remain elusive, mainly due to limited synthesis routes of achieving small size graphene. In this work, the synthesis of low oxygen content (<2.5±0.2 at. %), few layer graphene nanosheets with lateral dimensions smaller than a few hundred nanometers were achieved using a combination of ionic liquid assisted grinding of high purity graphite coupled with sequential centrifugation. We show for the first time that the graphene nanosheets possessing a plethora of edges exhibited considerably higher electron transfer numbers compared to the thicker graphene nanoplatelets. This enhanced ORR activity was accomplished by successfully exploiting the plethora of edges of the nanosized graphene as well as the efficient electron communication between the active edge sites and the electrode substrate. The graphene nanosheets were characterized by an onset potential of -0.13 V vs Ag/AgCl and a current density of -3.85 mA/cm2 at -1 V, which represent the best ORR performance ever achieved from an undoped carbon based catalyst. This work demonstrates how low oxygen content nanosized graphene synthesized by a simple route can considerably impact the ORR catalytic activity and hence it is of significance in designing and optimizing advanced metal-free ORR electrocatalysts.
Collapse
Affiliation(s)
- John Benson
- Engineering Research Institute, School of Engineering, University of Ulster , Newtownabbey BT37 0QB, United Kingdom
| | | | | | | | | | | | | | | |
Collapse
|
50
|
Song J, Yu Z, Gordin ML, Hu S, Yi R, Tang D, Walter T, Regula M, Choi D, Li X, Manivannan A, Wang D. Chemically bonded phosphorus/graphene hybrid as a high performance anode for sodium-ion batteries. Nano Lett 2014; 14:6329-35. [PMID: 25354313 DOI: 10.1021/nl502759z] [Citation(s) in RCA: 100] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
Room temperature sodium-ion batteries are of great interest for high-energy-density energy storage systems because of low-cost and natural abundance of sodium. Here, we report a novel phosphorus/graphene nanosheet hybrid as a high performance anode for sodium-ion batteries through facile ball milling of red phosphorus and graphene stacks. The graphene stacks are mechanically exfoliated to nanosheets that chemically bond with the surfaces of phosphorus particles. This chemical bonding can facilitate robust and intimate contact between phosphorus and graphene nanosheets, and the graphene at the particle surfaces can help maintain electrical contact and stabilize the solid electrolyte interphase upon the large volume change of phosphorus during cycling. As a result, the phosphorus/graphene nanosheet hybrid nanostructured anode delivers a high reversible capacity of 2077 mAh/g with excellent cycling stability (1700 mAh/g after 60 cycles) and high Coulombic efficiency (>98%). This simple synthesis approach and unique nanostructure can potentially be applied to other phosphorus-based alloy anode materials for sodium-ion batteries.
Collapse
Affiliation(s)
- Jiangxuan Song
- Department of Mechanical and Nuclear Engineering, The Pennsylvania State University , University Park, Pennsylvania 16802, United States
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|