51
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Efficient removal of the carbon deposits formed during the mixed methane reforming over Ni/Al2O3. KOREAN J CHEM ENG 2020. [DOI: 10.1007/s11814-019-0419-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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52
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Ye L, Ying Y, Sun D, Zhang Z, Fei L, Wen Z, Qiao J, Huang H. Highly Efficient Porous Carbon Electrocatalyst with Controllable N-Species Content for Selective CO 2 Reduction. Angew Chem Int Ed Engl 2020; 59:3244-3251. [PMID: 31814233 DOI: 10.1002/anie.201912751] [Citation(s) in RCA: 65] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2019] [Indexed: 12/22/2022]
Abstract
We report a straightforward strategy to design efficient N doped porous carbon (NPC) electrocatalyst that has a high concentration of easily accessible active sites for the CO2 reduction reaction (CO2 RR). The NPC with large amounts of active N (pyridinic and graphitic N) and highly porous structure is prepared by using an oxygen-rich metal-organic framework (Zn-MOF-74) precursor. The amount of active N species can be tuned by optimizing the calcination temperature and time. Owing to the large pore sizes, the active sites are well exposed to electrolyte for CO2 RR. The NPC exhibits superior CO2 RR activity with a small onset potential of -0.35 V and a high faradaic efficiency (FE) of 98.4 % towards CO at -0.55 V vs. RHE, one of the highest values among NPC-based CO2 RR electrocatalysts. This work advances an effective and facile way towards highly active and cost-effective alternatives to noble-metal CO2 RR electrocatalysts for practical applications.
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Affiliation(s)
- Lin Ye
- Department of Applied Physics, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
| | - Yiran Ying
- Department of Applied Physics, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
| | - Dengrong Sun
- Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Nam-gu, Pohang-Si, Gyungsangbuk-do, 37673, South Korea
| | - Zhouyang Zhang
- School of Materials Science and Engineering, Nanchang University, Nanchang, Jiangxi, 330031, China
| | - Linfeng Fei
- Department of Applied Physics, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China.,School of Materials Science and Engineering, Nanchang University, Nanchang, Jiangxi, 330031, China
| | - Zhenhai Wen
- Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002, P. R. China
| | - Jinli Qiao
- College of Environmental Science and Engineering, State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Donghua University, Shanghai, 201620, China
| | - Haitao Huang
- Department of Applied Physics, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
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53
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Ye L, Ying Y, Sun D, Zhang Z, Fei L, Wen Z, Qiao J, Huang H. Highly Efficient Porous Carbon Electrocatalyst with Controllable N‐Species Content for Selective CO
2
Reduction. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201912751] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Lin Ye
- Department of Applied Physics The Hong Kong Polytechnic University Hung Hom, Kowloon, Hong Kong China
| | - Yiran Ying
- Department of Applied Physics The Hong Kong Polytechnic University Hung Hom, Kowloon, Hong Kong China
| | - Dengrong Sun
- Department of Chemical Engineering Pohang University of Science and Technology (POSTECH) Nam-gu, Pohang-Si Gyungsangbuk-do 37673 South Korea
| | - Zhouyang Zhang
- School of Materials Science and Engineering Nanchang University Nanchang Jiangxi 330031 China
| | - Linfeng Fei
- Department of Applied Physics The Hong Kong Polytechnic University Hung Hom, Kowloon, Hong Kong China
- School of Materials Science and Engineering Nanchang University Nanchang Jiangxi 330031 China
| | - Zhenhai Wen
- Fujian Provincial Key Laboratory of Nanomaterials Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Fuzhou Fujian 350002 P. R. China
| | - Jinli Qiao
- College of Environmental Science and Engineering State Key Laboratory for Modification of Chemical Fibers and Polymer Materials Donghua University Shanghai 201620 China
| | - Haitao Huang
- Department of Applied Physics The Hong Kong Polytechnic University Hung Hom, Kowloon, Hong Kong China
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54
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Abbasnezhad A, Asgharzadeh H, Ansari Hamedani A, Hayat Soytas S. One-pot synthesis of tin chalcogenide-reduced graphene oxide-carbon nanotube nanocomposite as anode material for lithium-ion batteries. Dalton Trans 2020; 49:5890-5897. [DOI: 10.1039/d0dt00857e] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
In this study, a ternary tin chalcogenide (TC)–reduced graphene oxide (RGO)–carbon nanotube (CNT) nanocomposite was synthesized as a lithium-ion battery (LIB) anode by a simple one-step protocol.
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Affiliation(s)
- Azam Abbasnezhad
- Nanostructured and Novel Materials Laboratory (NNML)
- Department of Materials Engineering
- University of Tabriz
- Tabriz 51666-16471
- Iran
| | - Hamed Asgharzadeh
- Nanostructured and Novel Materials Laboratory (NNML)
- Department of Materials Engineering
- University of Tabriz
- Tabriz 51666-16471
- Iran
| | | | - Serap Hayat Soytas
- Sabanci University SUNUM Nanotechnology Research Center
- 34956 Istanbul
- Turkey
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55
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Sánchez Arribas A, Moreno M, González L, Blázquez N, Bermejo E, Zapardiel A, Chicharro M. A comparative study of carbon nanotube dispersions assisted by cationic reagents as electrode modifiers: Preparation, characterization and electrochemical performance for gallic acid detection. J Electroanal Chem (Lausanne) 2020. [DOI: 10.1016/j.jelechem.2019.113750] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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56
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Tan Y, Zhang Y, Wang X, Zeng L, Luo F, Liu A. Amorphous nickel coating on carbon nanotubes supported Pt nanoparticles as a highly durable and active electrocatalyst for methanol oxidation reaction. J Electroanal Chem (Lausanne) 2020. [DOI: 10.1016/j.jelechem.2019.113739] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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57
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Crystallinity and Reinforcement in Poly-L-Lactic Acid Scaffold Induced by Carbon Nanotubes. ADVANCES IN POLYMER TECHNOLOGY 2019. [DOI: 10.1155/2019/8625325] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Poly-L-Lactic Acid (PLLA) is a bioabsorbable implant material due to its favorable biocompatibility and inherent degradability, while the insufficient mechanical strength hinders its further bone repair application. In present work, carbon nanotubes (CNTs) were introduced into PLLA scaffolds fabricated via selective laser sintering. It was found that the crystallinity of PLLA increased considerably since CNTs could promote the orderly stacking of its molecular chains, thereby improving the mechanical strength of PLLA scaffold. Furthermore, the fracture surface analysis revealed that CNTs acted as a bridge across the cracks and hindered their further expansion. Moreover, CNTs pulled out from the matrix to consume a large amount of fracture energy, which enhanced the resistance to external forces. As a consequence, the compressive strength, Vickers hardness and tensile strength of the scaffold were enhanced by 22.7%, 58.8% and 17.6%, respectively. Besides, the cells exhibited good attachment, spreading and proliferation on the scaffold. This study demonstrated that PLLA/CNTs scaffold was a promising candidate as bone implant.
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58
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Han X, Huang Z, He C, Zhang Q, Zhang X, Yang Y. Sonochemical synthesis of Co3O4/graphene/Co3O4 sandwich architecture for high-performance supercapacitors. J APPL ELECTROCHEM 2019. [DOI: 10.1007/s10800-019-01357-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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59
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Niu X, Yang X, Mo Z, Guo R, Liu N, Zhao P, Liu Z, Ouyang M. Voltammetric enantiomeric differentiation of tryptophan by using multiwalled carbon nanotubes functionalized with ferrocene and β-cyclodextrin. Electrochim Acta 2019. [DOI: 10.1016/j.electacta.2018.12.041] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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60
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Li T, Ma S, Yang H, Xu ZL. Preparation of Carbonized MOF/MgCl2 Hybrid Products as Dye Adsorbent and Supercapacitor: Morphology Evolution and Mg Salt Effect. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.8b06437] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Ting Li
- State Key Laboratory of Chemical Engineering, Membrane Science and Engineering R&D Lab, Chemical Engineering Research Center, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Shuai Ma
- State Key Laboratory of Chemical Engineering, Membrane Science and Engineering R&D Lab, Chemical Engineering Research Center, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Hu Yang
- State Key Laboratory of Chemical Engineering, Membrane Science and Engineering R&D Lab, Chemical Engineering Research Center, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Zhen-liang Xu
- State Key Laboratory of Chemical Engineering, Membrane Science and Engineering R&D Lab, Chemical Engineering Research Center, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
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61
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Rathod V, Tripathi R, Joshi P, Jha PK, Bahadur P, Tiwari S. Paclitaxel Encapsulation into Dual-Functionalized Multi-Walled Carbon Nanotubes. AAPS PharmSciTech 2019; 20:51. [PMID: 30617845 DOI: 10.1208/s12249-018-1218-6] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2018] [Accepted: 10/08/2018] [Indexed: 01/31/2023] Open
Abstract
This work reports the synthesis of multi-walled carbon nanotubes (CNTs) from xylene/ferrocene using catalytic chemical vapor deposition technique. Following characterization using transmission electron microscopy (TEM), energy-dispersive X-ray (EDX), and Raman spectroscopy, CNT surface was dual-functionalized using ethylenediamine and phenylboronic acid groups. Average diameter of CNTs was calculated to be 16.5 nm. EDX spectra confirmed the existence of carbonaceous deposits on the tube's surface. Scattered electron diffraction and X-ray peak broadening calculations showed consistent inter-planer distance of the grown CNTs. Chemical functionalization, confirmed from FT-IR and Raman spectra, showed an enhanced dispersibility of CNTs in water. We describe the changes in the first- and second-order regions of the Raman spectra following the encapsulation of an anti-cancer drug, paclitaxel (PLX), into the free volume of functionalized CNTs. High PLX loading, achieved through its non-covalent π-π stacking within the CNT interior, is confirmed through the blue-shifted, softened G band in the Raman spectrum. While not addressed here, we will exploit this dual functionalization tactic to elaborate the relative role of attached moieties in the affinity interaction of CNTs with extra-cellular sialic acid, a biological target showing metastatic stage-dependent over-expression in colon cancer cells.
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62
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Kansara V, Patil R, Tripathi R, Jha PK, Bahadur P, Tiwari S. Functionalized graphene nanosheets with improved dispersion stability and superior paclitaxel loading capacity. Colloids Surf B Biointerfaces 2019; 173:421-428. [DOI: 10.1016/j.colsurfb.2018.10.016] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2018] [Revised: 09/20/2018] [Accepted: 10/08/2018] [Indexed: 01/19/2023]
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63
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DNA and DNA–CTMA composite thin films embedded with carboxyl group-modified multi-walled carbon nanotubes. J IND ENG CHEM 2018. [DOI: 10.1016/j.jiec.2018.07.031] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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64
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Davodi F, Mühlhausen E, Tavakkoli M, Sainio J, Jiang H, Gökce B, Marzun G, Kallio T. Catalyst Support Effect on the Activity and Durability of Magnetic Nanoparticles: toward Design of Advanced Electrocatalyst for Full Water Splitting. ACS APPLIED MATERIALS & INTERFACES 2018; 10:31300-31311. [PMID: 30113811 PMCID: PMC6150642 DOI: 10.1021/acsami.8b08830] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/29/2018] [Accepted: 08/16/2018] [Indexed: 06/08/2023]
Abstract
Earth-abundant element-based inorganic-organic hybrid materials are attractive alternatives for electrocatalyzing energy conversion reactions. Such material structures do not only increase the surface area and stability of metal nanoparticles (NPs) but also modify the electrocatalytic performance. Here, we introduce, for the first time, multiwall carbon nanotubes (MWNTs) functionalized with nitrogen-rich emeraldine salt (ES) (denoted as ES-MWNT) as a promising catalyst support to boost the electrocatalytic activity of magnetic maghemite (γ-Fe2O3) NPs. The latter component has been synthesized by a simple and upscalable one-step pulsed laser ablation method on Ni core forming the core-shell Ni@γ-Fe2O3 NPs. The catalyst (Ni@γ-Fe2O3/ES-MWNT) is formed via self-assembly as strong interaction between ES-MWNT and Ni@γ-Fe2O3 results in NPs' encapsulation in a thin C-N shell. We further show that Ni does not directly function as an active site in the electrocatalyst but it has a crucial role in synthesizing the maghemite shell. The strong interaction between the NPs and the support improves notably the NPs' catalytic activity toward oxygen evolution reaction (OER) in terms of both onset potential and current density, ranking it among the most active catalysts reported so far. Furthermore, this material shows a superior durability to most of the current excellent OER electrocatalysts as the activity, and the structure, remains almost intact after 5000 OER stability cycles. On further characterization, the same trend has been observed for hydrogen evolution reaction, the other half-reaction of water splitting.
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Affiliation(s)
- Fatemeh Davodi
- Electrochemical
Energy Conversion Group, Department of Chemistry and Materials Science,
School of Chemical Engineering, Aalto University, P.O. Box 16100, FI-00076 Aalto, Finland
| | - Elisabeth Mühlhausen
- University
of Duisburg-Essen, Technical Chemistry I and Center for Nanointegration
Duisburg-Essen (CENIDE), Universitätsstr. 7, 45141 Essen, Germany
| | - Mohammad Tavakkoli
- Electrochemical
Energy Conversion Group, Department of Chemistry and Materials Science,
School of Chemical Engineering, Aalto University, P.O. Box 16100, FI-00076 Aalto, Finland
| | - Jani Sainio
- Department
of Applied Physics, School of Science, Aalto
University, P.O. Box 15100, FI 00076 Aalto, Finland
| | - Hua Jiang
- Department
of Applied Physics, School of Science, Aalto
University, P.O. Box 15100, FI 00076 Aalto, Finland
| | - Bilal Gökce
- University
of Duisburg-Essen, Technical Chemistry I and Center for Nanointegration
Duisburg-Essen (CENIDE), Universitätsstr. 7, 45141 Essen, Germany
| | - Galina Marzun
- University
of Duisburg-Essen, Technical Chemistry I and Center for Nanointegration
Duisburg-Essen (CENIDE), Universitätsstr. 7, 45141 Essen, Germany
| | - Tanja Kallio
- Electrochemical
Energy Conversion Group, Department of Chemistry and Materials Science,
School of Chemical Engineering, Aalto University, P.O. Box 16100, FI-00076 Aalto, Finland
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65
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Reipa V, Hanna SK, Urbas A, Sander L, Elliott J, Conny J, Petersen EJ. Efficient electrochemical degradation of multiwall carbon nanotubes. JOURNAL OF HAZARDOUS MATERIALS 2018; 354:275-282. [PMID: 29778037 DOI: 10.1016/j.jhazmat.2018.04.065] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2017] [Revised: 04/23/2018] [Accepted: 04/25/2018] [Indexed: 06/08/2023]
Abstract
As the production mass of multiwall carbon nanotubes (MWCNT) increases, the potential for human and environmental exposure to MWCNTs may also increase. We have shown that exposing an aqueous suspension of pristine MWCNTs to an intense oxidative treatment in an electrochemical reactor, equipped with an efficient hydroxyl radical generating Boron Doped Diamond (BDD) anode, leads to their almost complete mineralization. Thermal optical transmittance analysis showed a total carbon mass loss of over two orders of magnitude due to the electrochemical treatment, a result consistent with measurements of the degraded MWCNT suspensions using UV-vis absorbance. Liquid chromatography data excludes substantial accumulation of the low molecular weight reaction products. Therefore, up to 99% of the initially suspended MWCNT mass is completely mineralized into gaseous products such as CO2 and volatile organic carbon. Scanning electron microscopy (SEM) images show sporadic opaque carbon clusters suggesting the remaining nanotubes are transformed into structure-less carbon during their electrochemical mineralization. Environmental toxicity of pristine and degraded MWCNTs was assessed using Caenorhabditis elegans nematodes and revealed a major reduction in the MWCNT toxicity after treatment in the electrochemical flow-by reactor.
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Affiliation(s)
- Vytas Reipa
- Materials Measurement Laboratory, National Institute of Standards and Technology, Gaithersburg, MD, 20899, USA.
| | - Shannon K Hanna
- Materials Measurement Laboratory, National Institute of Standards and Technology, Gaithersburg, MD, 20899, USA
| | - Aaron Urbas
- Materials Measurement Laboratory, National Institute of Standards and Technology, Gaithersburg, MD, 20899, USA
| | - Lane Sander
- Materials Measurement Laboratory, National Institute of Standards and Technology, Gaithersburg, MD, 20899, USA
| | - John Elliott
- Materials Measurement Laboratory, National Institute of Standards and Technology, Gaithersburg, MD, 20899, USA
| | - Joseph Conny
- Materials Measurement Laboratory, National Institute of Standards and Technology, Gaithersburg, MD, 20899, USA
| | - Elijah J Petersen
- Materials Measurement Laboratory, National Institute of Standards and Technology, Gaithersburg, MD, 20899, USA
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66
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Sohbatzadeh F, Eshghabadi M, Mohsenpour T. Controllable synthesizing DLC nano structures as a super hydrophobic layer on cotton fabric using a low-cost ethanol electrospray-assisted atmospheric plasma jet. NANOTECHNOLOGY 2018; 29:265603. [PMID: 29648547 DOI: 10.1088/1361-6528/aabdae] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The surface modification of cotton samples was carried out using a liquid (ethanol) electrospray-assisted atmospheric pressure plasma jet. X-ray photoelectron spectroscopy (XPS) and Raman analysis confirmed the successful deposition of diamond like carbon (DLC) nano structures on the cotton surface. The super hydrophobic state of the samples was probed by contact angle measurements. The water repellency of the layers was tuned by controlling the voltage applied to the electrospray electrode. An investigation of the morphological and chemical structures of the samples by field emission scanning microscopy, atomic force microscopy (AFM) and XPS indicated that the physical shape, distribution and amorphization of the DLC structures were successfully adjusted and improved by applying a voltage to the electrospray electrode. Finally wash durability of the best sample was tested for 35 cycles. In this work, the use of a well-developed atmospheric pressure plasma jet for DLC nano structures deposition can enable a promising environmentally friendly and low-cost approach for modifying cotton fabrics for super water-repellent fabric applications.
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Affiliation(s)
- F Sohbatzadeh
- Atomic and Molecular Physics Department, Faculty of Basic Sciences, University of Mazandaran, Babolsar, Iran
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67
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Charrier G, Kamaleddine H, Barchasz C, Cornut R, Jousselme B, Campidelli S. Sulfur-Containing Molecules Grafted on Carbon Nanotubes as Highly Cyclable Cathodes for Lithium/Organic Batteries. ChemElectroChem 2018. [DOI: 10.1002/celc.201700970] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Gaëlle Charrier
- LICSEN, NIMBE, CEA, CNRS; Université Paris-Saclay, CEA Saclay; 91191 Gif-sur-Yvette Cedex France
| | - Hanine Kamaleddine
- LICSEN, NIMBE, CEA, CNRS; Université Paris-Saclay, CEA Saclay; 91191 Gif-sur-Yvette Cedex France
- LITEN/DEHT/STB; Laboratoire des Matériaux (LM), CEA-Grenoble; 17 rue des Martyrs 38054 Grenoble Cedex 9 France
| | - Céline Barchasz
- LITEN/DEHT/STB; Laboratoire des Matériaux (LM), CEA-Grenoble; 17 rue des Martyrs 38054 Grenoble Cedex 9 France
| | - Renaud Cornut
- LICSEN, NIMBE, CEA, CNRS; Université Paris-Saclay, CEA Saclay; 91191 Gif-sur-Yvette Cedex France
| | - Bruno Jousselme
- LICSEN, NIMBE, CEA, CNRS; Université Paris-Saclay, CEA Saclay; 91191 Gif-sur-Yvette Cedex France
| | - Stéphane Campidelli
- LICSEN, NIMBE, CEA, CNRS; Université Paris-Saclay, CEA Saclay; 91191 Gif-sur-Yvette Cedex France
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68
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Kuche K, Maheshwari R, Tambe V, Mak KK, Jogi H, Raval N, Pichika MR, Kumar Tekade R. Carbon nanotubes (CNTs) based advanced dermal therapeutics: current trends and future potential. NANOSCALE 2018; 10:8911-8937. [PMID: 29722421 DOI: 10.1039/c8nr01383g] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The search for effective and non-invasive delivery modules to transport therapeutic molecules across skin has led to the discovery of a number of nanocarriers (viz.: liposomes, ethosomes, dendrimers, etc.) in the last few decades. However, available literature suggests that these delivery modules face several issues including poor stability, low encapsulation efficiency, and scale-up hurdles. Recently, carbon nanotubes (CNTs) emerged as a versatile tool to deliver therapeutics across skin. Superior stability, high loading capacity, well-developed synthesis protocol as well as ease of scale-up are some of the reason for growing interest in CNTs. CNTs have a unique physical architecture and a large surface area with unique surface chemistry that can be tailored for vivid biomedical applications. CNTs have been thus largely engaged in the development of transdermal systems such as tuneable hydrogels, programmable nonporous membranes, electroresponsive skin modalities, protein channel mimetic platforms, reverse iontophoresis, microneedles, and dermal buckypapers. In addition, CNTs were also employed in the development of RNA interference (RNAi) based therapeutics for correcting defective dermal genes. This review expounds the state-of-art synthesis methodologies, skin penetration mechanism, drug liberation profile, loading potential, characterization techniques, and transdermal applications along with a summary on patent/regulatory status and future scope of CNT based skin therapeutics.
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Affiliation(s)
- Kaushik Kuche
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research (NIPER) - Ahmedabad, Opposite Air Force Station Palaj, Gandhinagar, Gujarat 382355, India.
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69
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Shi X, Peng X, Zhu J, Lin G, Kuang T. Synthesis of DOPO-HQ-functionalized graphene oxide as a novel and efficient flame retardant and its application on polylactic acid: Thermal property, flame retardancy, and mechanical performance. J Colloid Interface Sci 2018; 524:267-278. [PMID: 29655146 DOI: 10.1016/j.jcis.2018.04.016] [Citation(s) in RCA: 80] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2018] [Revised: 04/03/2018] [Accepted: 04/03/2018] [Indexed: 11/24/2022]
Abstract
The fabrication of biodegradable polymer nanocomposites with improved flame retardancy has been an urgent task in practical because of the huge benefits of biodegradable polymers. In this work, 10-(2,5-dihydroxyl phenyl)-9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide (DOPO-HQ)-functionalized graphene oxide (GO) (FGO-HQ) was used as a novel and highly efficient flame retardant (FR) to improve the flame retardancy of polylactide (PLA) nanocomposites. Contributed by the bi-phase flame retardant action, including the physical barrier char in solid phase and the decreased flammable volatiles in gas phase, the resultant PLA/FGO-HQ nanocomposites presented excellent flame resistance at the loading of 6 wt% FR: UL-94 reached V-0 rating; peak heat release rate (PHRR) and total heat release (THR) decreased by 24.0% and 43.0%, respectively; smoke production rate (SPR) and total smoke release (TSR) decreased by 46% and 83%, respectively. For further confirming its flame-resistance mechanism, thermogravimetric analysis/infrared spectrometry (TG-IR) and Fourier transform infrared spectra (FT-IR), scanning electron microscope (SEM), and Raman spectroscopy were employed. Results indicated that the incorporation of FGO-HQ can effectively reduce the evaporation of flammable gaseous product in gas phase through quenching free radicals. Meanwhile, graphitized carbons are formed in the residual char and PLA/FGO-HQ sample can achieve a good thermal stability in the combustion with phosphorus-containing compounds and aromatic structure in the solid phase. Furthermore, the tensile strength of PLA nanocomposites presented good mechanical properties with the addition of FR as well. These results suggested that the incorporation of FGO-HQ FR not only improve the flame retardancy and thermal stability of biodegradable polymer nanocomposites but also without sacrificing their mechanical properties.
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Affiliation(s)
- Xingxing Shi
- The Key Laboratory of Polymer Processing Engineering of Ministry of Education, South China University of Technology, Guangzhou 510640, China; Department of Industrial Equipment and Control Engineering, South China University of Technology, Guangzhou 510640, China
| | - Xiangfang Peng
- The Key Laboratory of Polymer Processing Engineering of Ministry of Education, South China University of Technology, Guangzhou 510640, China; Department of Industrial Equipment and Control Engineering, South China University of Technology, Guangzhou 510640, China
| | - Jingyi Zhu
- The Key Laboratory of Polymer Processing Engineering of Ministry of Education, South China University of Technology, Guangzhou 510640, China; Department of Industrial Equipment and Control Engineering, South China University of Technology, Guangzhou 510640, China
| | - Guangyi Lin
- College of Electro Mechanical Engineering, Qingdao University of Science and Technology, Qingdao 266061, China
| | - Tairong Kuang
- The Key Laboratory of Polymer Processing Engineering of Ministry of Education, South China University of Technology, Guangzhou 510640, China; Department of Industrial Equipment and Control Engineering, South China University of Technology, Guangzhou 510640, China.
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70
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Shi X, Jiang S, Zhu J, Li G, Peng X. Establishment of a highly efficient flame-retardant system for rigid polyurethane foams based on bi-phase flame-retardant actions. RSC Adv 2018; 8:9985-9995. [PMID: 35540820 PMCID: PMC9078744 DOI: 10.1039/c7ra13315d] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2017] [Accepted: 01/23/2018] [Indexed: 11/21/2022] Open
Abstract
Rigid polyurethane foam (PU), one of the most promising wall insulation materials, exhibits high flammability and fire risk. In this work, PU/EG/HQ composites with highly effective flame retardancy were fabricated by adding two kinds of flame retardants, expandable graphite (EG) and 10-(2,5-dihydroxyphenyl)-10-hydro-9-oxa-10-phosphorylphenanthrene-10-oxide (DOPO-HQ), during the synthesis of polyurethane. Thermal stability and flammability were evaluated using the limiting oxygen index (LOI), thermogravimetric analysis (TGA), UL-94 vertical flame results, and cone colorimeter tests. The as-synthesized PU/EG/HQ composites showed a high LOI value, a maximum peak heat release rate (PHRR) value which was decreased by 58.5% and an increased char yield at 800 °C. They also achieved UL-94 V-0 classification. SEM and Raman spectra indicated that the "worm-like" intumescent char layer with a graphitized structure and the formed viscous liquid film were vital factors in the enhancement of the flame retardancy of polyurethane foam in the condensed phase. TG-IR results show that the release of toxic volatiles and flammable gases from the PU/EG/HQ samples was remarkably decreased compared with the release from pure PU. This work associates a gas-solid biphase flame retardancy mechanism with the incorporation of two types of flame retardant and presents an effective method for the synthesis of bi-phase flame-retardant polymers.
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Affiliation(s)
- Xingxing Shi
- School of Mechanical and Automotive Engineering, South China University of Technology Wushan Road 381 Guangzhou 510641 P. R. China +86-20-22236321 +86-20-87112503 +86-13678970588 +86-20-87111143 +86-18822182920
| | - Saihua Jiang
- School of Mechanical and Automotive Engineering, South China University of Technology Wushan Road 381 Guangzhou 510641 P. R. China +86-20-22236321 +86-20-87112503 +86-13678970588 +86-20-87111143 +86-18822182920
- Tianjin Fire Research Institute of Ministry of Public Security Tianjin 300381 China
| | - Jingyi Zhu
- School of Mechanical and Automotive Engineering, South China University of Technology Wushan Road 381 Guangzhou 510641 P. R. China +86-20-22236321 +86-20-87112503 +86-13678970588 +86-20-87111143 +86-18822182920
| | - Guohui Li
- Tianjin Fire Research Institute of Ministry of Public Security Tianjin 300381 China
| | - Xiangfang Peng
- School of Mechanical and Automotive Engineering, South China University of Technology Wushan Road 381 Guangzhou 510641 P. R. China +86-20-22236321 +86-20-87112503 +86-13678970588 +86-20-87111143 +86-18822182920
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71
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Paoletti C, He M, Salvo P, Melai B, Calisi N, Mannini M, Cortigiani B, Bellagambi FG, Swager TM, Di Francesco F, Pucci A. Room temperature amine sensors enabled by sidewall functionalization of single-walled carbon nanotubes. RSC Adv 2018; 8:5578-5585. [PMID: 30820317 PMCID: PMC6390973 DOI: 10.1039/c7ra13304a] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2017] [Accepted: 01/29/2018] [Indexed: 11/21/2022] Open
Abstract
A new series of sidewall modified single-walled carbon nanotubes (SWCNTs) with perfluorophenyl molecules bearing carboxylic acid or methyl ester moieties are herein reported. Pristine and functionalized SWCNTs (p-SWCNTs and f-SWCNTs, respectively) were characterized by X-ray photoelectron spectroscopy (XPS), Raman spectroscopy and scanning electron microscopy (SEM). The nitrene-based functionalization provided intact SWCNTs with methyl 4-azido-2,3,5,6-tetrafluorobenzoate (SWCNT-N-C6F4CO2CH3) and 4-azido-2,3,5,6-tetrafluorobenzoic acid (SWCNT-N-C6F4CO2H) attached every 213 and 109 carbon atoms, respectively. Notably, SWCNT-N-C6F4CO2H was sensitive in terms of the percentage of conductance variation from 5 to 40 ppm of ammonia (NH3) and trimethylamine (TMA) with a two-fold higher variation of conductance compared to p-SWCNTs at 40 ppm. The sensors are highly sensitive to NH3 and TMA as they showed very low responses (0.1%) toward 200 ppm of volatile organic compounds (VOCs) containing various functional groups representative of different classes of analytes such as benzene, tetrahydrofurane (THF), hexane, ethyl acetate (AcOEt), ethanol, acetonitrile (CH3CN), acetone and chloroform (CHCl3). Our system is a promising candidate for the realization of single-use chemiresistive sensors for the detection of threshold crossing by low concentrations of gaseous NH3 and TMA at room temperature.
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Affiliation(s)
- Clara Paoletti
- Department of Chemistry and Industrial Chemistry, University of PisaVia G. Moruzzi 1356124 PisaItaly
| | - Maggie He
- Department of Chemistry, Institute for Soldier Nanotechnologies, Massachusetts Institute of Technology77 Massachusetts AvenueCambridgeMA 02139USA
| | - Pietro Salvo
- Department of Chemistry and Industrial Chemistry, University of PisaVia G. Moruzzi 1356124 PisaItaly
- Institute of Clinical Physiology, National Council of Research (IFC-CNR)Via G. Moruzzi 1Pisa56124Italy
| | - Bernardo Melai
- Department of Chemistry and Industrial Chemistry, University of PisaVia G. Moruzzi 1356124 PisaItaly
| | - Nicola Calisi
- Department of Chemistry and Industrial Chemistry, University of PisaVia G. Moruzzi 1356124 PisaItaly
- Department of Chemistry “U. Schiff”, University of FlorenceVia della Lastruccia 3-13, 50019 Sesto Fiorentino (FI)Italy
- National Interuniversity Consortium of Materials Science and Technology (INSTM)Via G. Giusti 950121 FirenzeItaly
| | - Matteo Mannini
- Department of Chemistry “U. Schiff”, University of FlorenceVia della Lastruccia 3-13, 50019 Sesto Fiorentino (FI)Italy
- National Interuniversity Consortium of Materials Science and Technology (INSTM)Via G. Giusti 950121 FirenzeItaly
| | - Brunetto Cortigiani
- Department of Chemistry “U. Schiff”, University of FlorenceVia della Lastruccia 3-13, 50019 Sesto Fiorentino (FI)Italy
- National Interuniversity Consortium of Materials Science and Technology (INSTM)Via G. Giusti 950121 FirenzeItaly
| | - Francesca G. Bellagambi
- Department of Chemistry and Industrial Chemistry, University of PisaVia G. Moruzzi 1356124 PisaItaly
| | - Timothy M. Swager
- Department of Chemistry, Institute for Soldier Nanotechnologies, Massachusetts Institute of Technology77 Massachusetts AvenueCambridgeMA 02139USA
| | - Fabio Di Francesco
- Department of Chemistry and Industrial Chemistry, University of PisaVia G. Moruzzi 1356124 PisaItaly
| | - Andrea Pucci
- Department of Chemistry and Industrial Chemistry, University of PisaVia G. Moruzzi 1356124 PisaItaly
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72
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Singh S, Bairagi PK, Verma N. Candle soot-derived carbon nanoparticles: An inexpensive and efficient electrode for microbial fuel cells. Electrochim Acta 2018. [DOI: 10.1016/j.electacta.2018.01.110] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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73
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Chernyak SA, Ivanov AS, Maslakov KI, Egorov AV, Shen Z, Savilov SS, Lunin VV. Oxidation, defunctionalization and catalyst life cycle of carbon nanotubes: a Raman spectroscopy view. Phys Chem Chem Phys 2018; 19:2276-2285. [PMID: 28054674 DOI: 10.1039/c6cp04657f] [Citation(s) in RCA: 94] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Pristine, oxidized and defunctionalized carbon nanotubes (CNTs) were studied by Raman spectroscopy, X-ray diffraction, transmission electron microscopy and low temperature nitrogen adsorption. The Raman spectra of the studied samples in the range of 900-1800 cm-1 were deconvoluted into five components to reveal the CNT oxidation mechanism. It was found that the oxidation resulted in the reduction of graphite components and ordering of both the structured and defect part of CNTs. Acid treatment also led to different types of disorders in the surface layers of CNTs. Polyene-type, polyphenylene-type and turbostratic fragments were detected as a result of partial exfoliation. Investigation of defunctionalized CNTs showed the ordering of edge carbon atoms as well as the invariability of the total amount of defects. The study of CNTs as supports for Co-based catalysts revealed a simultaneous decrease in the number of defect fragments and increase in the number of edge carbon atoms during catalyst preparation and reduction.
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Affiliation(s)
- Sergei A Chernyak
- Department of Chemistry, Lomonosov Moscow State University, 1-3 Leninskiye Gory, Moscow, 119991, Russia. and Department of Physical Chemistry, Kurnakov Institute of General and Inorganic Chemistry of the Russian Academy of Sciences, 31 Leninsky Prospect, Moscow, 119991, Russia
| | - Anton S Ivanov
- Department of Chemistry, Lomonosov Moscow State University, 1-3 Leninskiye Gory, Moscow, 119991, Russia.
| | - Konstantin I Maslakov
- Department of Chemistry, Lomonosov Moscow State University, 1-3 Leninskiye Gory, Moscow, 119991, Russia.
| | - Alexander V Egorov
- Department of Chemistry, Lomonosov Moscow State University, 1-3 Leninskiye Gory, Moscow, 119991, Russia.
| | - Zexiang Shen
- Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore
| | - Serguei S Savilov
- Department of Chemistry, Lomonosov Moscow State University, 1-3 Leninskiye Gory, Moscow, 119991, Russia. and Department of Physical Chemistry, Kurnakov Institute of General and Inorganic Chemistry of the Russian Academy of Sciences, 31 Leninsky Prospect, Moscow, 119991, Russia
| | - Valery V Lunin
- Department of Chemistry, Lomonosov Moscow State University, 1-3 Leninskiye Gory, Moscow, 119991, Russia. and Department of Physical Chemistry, Kurnakov Institute of General and Inorganic Chemistry of the Russian Academy of Sciences, 31 Leninsky Prospect, Moscow, 119991, Russia
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74
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Tailor PM, Wheatley RJ, Besley NA. Simulation of the Raman spectroscopy of multi-layered carbon nanomaterials. Phys Chem Chem Phys 2018; 20:28001-28010. [DOI: 10.1039/c8cp05908j] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A empirical potential based model for simulating the Raman spectroscopy of layered carbon nanomaterials is introduced.
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75
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Efficient Electrocatalytic Reduction of CO2by Nitrogen-Doped Nanoporous Carbon/Carbon Nanotube Membranes: A Step Towards the Electrochemical CO2Refinery. Angew Chem Int Ed Engl 2017; 56:7847-7852. [DOI: 10.1002/anie.201703720] [Citation(s) in RCA: 212] [Impact Index Per Article: 30.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2017] [Indexed: 12/30/2022]
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76
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Wang H, Jia J, Song P, Wang Q, Li D, Min S, Qian C, Wang L, Li YF, Ma C, Wu T, Yuan J, Antonietti M, Ozin GA. Efficient Electrocatalytic Reduction of CO2by Nitrogen-Doped Nanoporous Carbon/Carbon Nanotube Membranes: A Step Towards the Electrochemical CO2Refinery. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201703720] [Citation(s) in RCA: 66] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Hong Wang
- Materials Chemistry and Nanochemistry Research Group, Solar Fuels Cluster; Centre for Inorganic and Polymeric Nanomaterials; Departments of Chemistry, Chemical Engineering and Applied Chemistry, and Electrical and Computing Engineering; University of Toronto; 80 St. George Street Toronto Ontario M5S3H6 Canada
| | - Jia Jia
- Materials Chemistry and Nanochemistry Research Group, Solar Fuels Cluster; Centre for Inorganic and Polymeric Nanomaterials; Departments of Chemistry, Chemical Engineering and Applied Chemistry, and Electrical and Computing Engineering; University of Toronto; 80 St. George Street Toronto Ontario M5S3H6 Canada
| | - Pengfei Song
- College of Chemistry and Chemical Engineering; Northwest Normal University; Lanzhou 730070 China
| | - Qiang Wang
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry; the Chinese Academy of Sciences; Taiyuan 030001 China
| | - Debao Li
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry; the Chinese Academy of Sciences; Taiyuan 030001 China
| | - Shixiong Min
- School of Chemistry and Chemical Engineering; Beifang University of Nationalities; Yinchuan Ningxia China
| | - Chenxi Qian
- Materials Chemistry and Nanochemistry Research Group, Solar Fuels Cluster; Centre for Inorganic and Polymeric Nanomaterials; Departments of Chemistry, Chemical Engineering and Applied Chemistry, and Electrical and Computing Engineering; University of Toronto; 80 St. George Street Toronto Ontario M5S3H6 Canada
| | - Lu Wang
- Materials Chemistry and Nanochemistry Research Group, Solar Fuels Cluster; Centre for Inorganic and Polymeric Nanomaterials; Departments of Chemistry, Chemical Engineering and Applied Chemistry, and Electrical and Computing Engineering; University of Toronto; 80 St. George Street Toronto Ontario M5S3H6 Canada
| | - Young Feng Li
- Materials Chemistry and Nanochemistry Research Group, Solar Fuels Cluster; Centre for Inorganic and Polymeric Nanomaterials; Departments of Chemistry, Chemical Engineering and Applied Chemistry, and Electrical and Computing Engineering; University of Toronto; 80 St. George Street Toronto Ontario M5S3H6 Canada
| | - Chun Ma
- Physical Science and Engineering Division; King Abdullah University of Science & Technology (KAUST); Thuwal 23955-6900 Saudi Arabia
| | - Tom Wu
- Physical Science and Engineering Division; King Abdullah University of Science & Technology (KAUST); Thuwal 23955-6900 Saudi Arabia
| | - Jiayin Yuan
- Department of colloidal chemistry; Max Planck Institute of Colloids and Interfaces; 14476 Potsdam Germany
- Department of Chemistry and Biomolecular Science and Center for Advanced Materials Processing; Clarkson University; Potsdam NY 13699 USA
| | - Markus Antonietti
- Department of colloidal chemistry; Max Planck Institute of Colloids and Interfaces; 14476 Potsdam Germany
| | - Geoffrey A. Ozin
- Materials Chemistry and Nanochemistry Research Group, Solar Fuels Cluster; Centre for Inorganic and Polymeric Nanomaterials; Departments of Chemistry, Chemical Engineering and Applied Chemistry, and Electrical and Computing Engineering; University of Toronto; 80 St. George Street Toronto Ontario M5S3H6 Canada
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77
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Dutta DP, Venugopalan R, Chopade S. Manipulating Carbon Nanotubes for Efficient Removal of Both Cationic and Anionic Dyes from Wastewater. ChemistrySelect 2017. [DOI: 10.1002/slct.201700135] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Dimple P. Dutta
- Chemistry Division; Bhabha Atomic Research Centre; Mumbai 400 085 India
| | - Ramani Venugopalan
- Mechanical Metallurgy Division; Bhabha Atomic Research Centre; Mumbai 400 085 India
| | - Suresh Chopade
- Chemistry Division; Bhabha Atomic Research Centre; Mumbai 400 085 India
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78
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Toader G, Rusen E, Teodorescu M, Diacon A, Stanescu PO, Damian C, Rotariu T, Rotariu A. New polyurea MWCNTs nanocomposite films with enhanced mechanical properties. J Appl Polym Sci 2017. [DOI: 10.1002/app.45061] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Gabriela Toader
- Department of Bioresources and Polymer Science, Faculty of Applied Chemistry and Materials Science; University Politehnica of Bucharest; 1-7 Gh. Polizu Street Bucharest 011061 Romania
- Military Technical Academy; 39-49 George Cosbuc Boulevard Bucharest 050141 Romania
| | - Edina Rusen
- Department of Bioresources and Polymer Science, Faculty of Applied Chemistry and Materials Science; University Politehnica of Bucharest; 1-7 Gh. Polizu Street Bucharest 011061 Romania
| | - Mircea Teodorescu
- Department of Bioresources and Polymer Science, Faculty of Applied Chemistry and Materials Science; University Politehnica of Bucharest; 1-7 Gh. Polizu Street Bucharest 011061 Romania
| | - Aurel Diacon
- Department of Bioresources and Polymer Science, Faculty of Applied Chemistry and Materials Science; University Politehnica of Bucharest; 1-7 Gh. Polizu Street Bucharest 011061 Romania
| | - Paul O. Stanescu
- Department of Bioresources and Polymer Science, Faculty of Applied Chemistry and Materials Science; University Politehnica of Bucharest; 1-7 Gh. Polizu Street Bucharest 011061 Romania
| | - Celina Damian
- Department of Bioresources and Polymer Science, Faculty of Applied Chemistry and Materials Science; University Politehnica of Bucharest; 1-7 Gh. Polizu Street Bucharest 011061 Romania
| | - Traian Rotariu
- Military Technical Academy; 39-49 George Cosbuc Boulevard Bucharest 050141 Romania
| | - Adrian Rotariu
- Military Technical Academy; 39-49 George Cosbuc Boulevard Bucharest 050141 Romania
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79
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Kumar R, Choudhary HK, Pawar SP, Bose S, Sahoo B. Carbon encapsulated nanoscale iron/iron-carbide/graphite particles for EMI shielding and microwave absorption. Phys Chem Chem Phys 2017; 19:23268-23279. [DOI: 10.1039/c7cp03175k] [Citation(s) in RCA: 126] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Dispersed metallic-iron and dielectric-Fe3C nanoparticles in carbon globules facilitate multiple scattering and absorption of EM-waves through large interfacial polarization.
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Affiliation(s)
- Rajeev Kumar
- Materials Research Centre
- Indian Institute of Science
- Bangalore
- India
| | | | | | - Suryasarathi Bose
- Department of Materials Engineering
- Indian Institute of Science
- Bangalore
- India
| | - Balaram Sahoo
- Materials Research Centre
- Indian Institute of Science
- Bangalore
- India
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80
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Van Trinh P, Anh NN, Tam NT, Hong NT, Hong PN, Minh PN, Thang BH. Influence of defects induced by chemical treatment on the electrical and thermal conductivity of nanofluids containing carboxyl-functionalized multi-walled carbon nanotubes. RSC Adv 2017. [DOI: 10.1039/c7ra08552d] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Influence of defects induced by chemical treatment on the electrical and thermal conductivity of nanofluids containing MWCNT–COOH was investigated and presented.
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Affiliation(s)
- Pham Van Trinh
- Institute of Materials Science
- Vietnam Academy of Science and Technology
- Hanoi
- Vietnam
| | - Nguyen Ngoc Anh
- Institute of Materials Science
- Vietnam Academy of Science and Technology
- Hanoi
- Vietnam
| | - Nguyen Trong Tam
- Graduated University of Science and Technology
- Vietnam Academy of Science and Technology
- Hanoi
- Vietnam
| | - Nguyen Tuan Hong
- Center for High Technology Development
- Vietnam Academy of Science and Technology
- Hanoi
- Vietnam
| | - Phan Ngoc Hong
- Institute of Materials Science
- Vietnam Academy of Science and Technology
- Hanoi
- Vietnam
- Graduated University of Science and Technology
| | - Phan Ngoc Minh
- Institute of Materials Science
- Vietnam Academy of Science and Technology
- Hanoi
- Vietnam
- Graduated University of Science and Technology
| | - Bui Hung Thang
- Institute of Materials Science
- Vietnam Academy of Science and Technology
- Hanoi
- Vietnam
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81
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Wang W, Quan H, Gao W, Zou R, Chen D, Dong Y, Guo L. N-Doped hierarchical porous carbon from waste boat-fruited sterculia seed for high performance supercapacitors. RSC Adv 2017. [DOI: 10.1039/c7ra01043e] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
N-Doped hierarchical porous carbon (NHPC) was obtained from waste boat-fruited sterculia seed by hydrothermal carbonization and KOH activation.
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Affiliation(s)
- Wenxiu Wang
- School of Materials Science and Engineering
- Nanchang Hangkong University
- Nanchang 330063
- China
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle
| | - Hongying Quan
- School of Materials Science and Engineering
- Nanchang Hangkong University
- Nanchang 330063
- China
| | - Weimin Gao
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle
- School of Environmental and Chemical Engineering
- Nanchang Hangkong University
- Nanchang 330063
- China
| | - Ren Zou
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle
- School of Environmental and Chemical Engineering
- Nanchang Hangkong University
- Nanchang 330063
- China
| | - Dezhi Chen
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle
- School of Environmental and Chemical Engineering
- Nanchang Hangkong University
- Nanchang 330063
- China
| | - Yinghu Dong
- School of Materials Science and Engineering
- Nanchang Hangkong University
- Nanchang 330063
- China
| | - Lin Guo
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle
- School of Environmental and Chemical Engineering
- Nanchang Hangkong University
- Nanchang 330063
- China
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82
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Zhang M, Annamalai KP, Liu L, Chen T, Gao J, Tao Y. Multiwalled carbon nanotube-supported CuCo2S4 as a heterogeneous Fenton-like catalyst with enhanced performance. RSC Adv 2017. [DOI: 10.1039/c7ra01269a] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
CuCo2S4/MWCNTs, an enhanced Fenton-like catalyst, exhibited a high catalytic rate, broad pH tolerance and good reusability.
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Affiliation(s)
- Mai Zhang
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences (CAS)
- Fuzhou 350002
- China
| | - K. P. Annamalai
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences (CAS)
- Fuzhou 350002
- China
| | - Lile Liu
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences (CAS)
- Fuzhou 350002
- China
| | - Tianlu Chen
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences (CAS)
- Fuzhou 350002
- China
| | - Jianping Gao
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences (CAS)
- Fuzhou 350002
- China
| | - Yousheng Tao
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences (CAS)
- Fuzhou 350002
- China
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83
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Gao YX, Wu D, Yang YX, Wang WJ, Xie SY, Shiu KK, Shi K. Mechanistic study on the interfacial variation of carbon electrode under electrochemical oxidation. J Electroanal Chem (Lausanne) 2016. [DOI: 10.1016/j.jelechem.2016.11.039] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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84
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Xu M, Huang Q, Sun R, Wang X. Simultaneously obtaining fluorescent carbon dots and porous active carbon for supercapacitors from biomass. RSC Adv 2016. [DOI: 10.1039/c6ra18725k] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
We present a facile and green approach to simultaneously synthesize fluorescent carbon dots and porous active carbon for supercapacitors via a two-step carbonization process from a widely available protein-rich biomass precursor – soybeans.
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Affiliation(s)
- Manman Xu
- State Key Laboratory of Pulp and Paper Engineering
- School of Light Industry Science & Engineering
- South China University of Technology
- Guangzhou
- P. R. China
| | - Quanbo Huang
- State Key Laboratory of Pulp and Paper Engineering
- School of Light Industry Science & Engineering
- South China University of Technology
- Guangzhou
- P. R. China
| | - Runcang Sun
- State Key Laboratory of Pulp and Paper Engineering
- School of Light Industry Science & Engineering
- South China University of Technology
- Guangzhou
- P. R. China
| | - Xiaohui Wang
- State Key Laboratory of Pulp and Paper Engineering
- School of Light Industry Science & Engineering
- South China University of Technology
- Guangzhou
- P. R. China
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85
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Application of Response Surface Methodology for Optimization of Urea Grafted Multiwalled Carbon Nanotubes in Enhancing Nitrogen Use Efficiency and Nitrogen Uptake by Paddy Plants. JOURNAL OF NANOTECHNOLOGY 2016. [DOI: 10.1155/2016/1250739] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Efficient use of urea fertilizer (UF) as important nitrogen (N) source in the world’s rice production has been a concern. Carbon-based materials developed to improve UF performance still represent a great challenge to be formulated for plant nutrition. Advanced N nanocarrier is developed based on functionalized multiwall carbon nanotubes (f-MWCNTs) grafted with UF to produce urea-multiwall carbon nanotubes (UF-MWCNTs) for enhancing the nitrogen uptake (NU) and use efficiency (NUE). The grafted N can be absorbed and utilized by rice efficiently to overcome the N loss from soil-plant systems. The individual and interaction effect between the specified factors of f-MWCNTs amount (0.10–0.60 wt%) and functionalization reflux time (12–24 hrs) with the corresponding responses (NUE, NU) were structured via the Response Surface Methodology (RSM) based on five-level CCD. The UF-MWCNTs with optimized 0.5 wt% f-MWCNTs treated at 21 hrs reflux time achieve tremendous NUE up to 96% and NU at 1180 mg/pot. Significant model terms (pvalue < 0.05) for NUE and NU responses were confirmed by the ANOVA. Homogeneous dispersion of UF-MWCNTs was observed via FESEM and TEM. The chemical changes were monitored by FT-IR and Raman spectroscopy. Hence, this UF-MWCNTs’ approach provides a promising strategy in enhancing plant nutrition for rice.
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