Processing and characterization of spark plasma sintered copper/carbon nanotube composites

Nayan, Nafarizal; Shukla, A.K.; Chandran, Prathap; Bakshi, Srinivasa Rao; Murty, S. V. S. Narayana; Pant, Bhanu; Venkitakrishnan, P. V.

doi:10.1016/j.msea.2016.10.114

Cited by 57 publications

(27 citation statements)

References 45 publications

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“…2A. The calculated I D /I G ratios of graphene and CNTs were 0.60 35 and 0.78, 36 respectively. Figure 2A displays a I D /I G ratio of 0.70 for the 3D G/CNT hybrid.…”

Section: Characterizationmentioning

confidence: 89%

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One Step Synthesis of Covalent Connected Three-dimensional Graphene/Carbon Nanotube for Olaquindox Electrochemical Sensor

et al. 2019

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An electrochemical sensor based on a three-dimensional (3D) graphene/carbon nanotube (G/CNT) hybrid was developed for the sensitive detection of olaquindox (OLA). 3D G/CNT hybrid through covalent C-C bonding was fabricated by one-step synthesis using catalytic chemical vapor deposition. To construct the base of the sensor, a novel composite was fabricated by a functionalized 3D G/CNT with poly-(dimethy diallyl ammonium chloride) and Nafion via simple grind and ultrasonication dispersion methods. The electrochemical determination of OLA exhibited an oxidation peak at −0.685 V with a higher current response. Due to the effective surface area and active sites, a good linear relationship was observed between the OLA concentration and peak current over the range of 1.5 × 10 −6 -2.7 × 10 −3 mg mL −1 with a detection limit of 6.12 × 10 −8 mg mL −1 (3σ). The proposed electrochemical sensor was used to detect OLA in swine samples at a recovery ranging from 97.78% to 104.25%, which exhibits a broader prospect to supervise animal products and a high potential for food security applications.

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“…2A. The calculated I D /I G ratios of graphene and CNTs were 0.60 35 and 0.78, 36 respectively. Figure 2A displays a I D /I G ratio of 0.70 for the 3D G/CNT hybrid.…”

Section: Characterizationmentioning

confidence: 89%

“…The I D /I G ratio probably presents the hybrids of graphene and the CNTs and shows an increase in the purity and crystallinity of the CNTs. 36 Figure 2B indicates a typical XRD spectrum of the 3D G/CNT hybrid. The XRD pattern shows two diffraction peaks at approximately 25°and 43°.…”

Section: Characterizationmentioning

confidence: 99%

One Step Synthesis of Covalent Connected Three-dimensional Graphene/Carbon Nanotube for Olaquindox Electrochemical Sensor

et al. 2019

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“…The basic powder metallurgy method processing steps to produce CNT-Cu material can be roughly classified as follows, with the standard process steps typically utilized shown in bold (Daoush et al, 2009;Deng et al 2017;Huang et al 2017;Nayan et al, 2017;Wang et al, 2018):…”

Section: Other Production Methods Of Cnt-cu Compositesmentioning

confidence: 99%

“…Functionalization of CNTs in acids before introduction to Cu salts in an ethanol solution has been shown to achieve a homogeneous mixture of CNTs/Cu, as a precursor to forming CNT/Cu powder for later sintering, by the so called molecular level mixing method (e.g., Cha et al, 2005;Kim et al, 2007Kim et al, , 2008Kim et al, , 2011. However, considerable agglomeration of CNTs is typically reported as a problem of high temperature methods, when the nanotube fraction increases beyond ~1-2 wt% (e.g., Huang et al 2017;Deng et al 2017;Daoush et al, 2009;Nayan et al, 2017), which also leads to increased porosity of the composite (Guiderdoni et al, 2013). Mechanical dispersion of CNTs with copper requires considerable energy, which could deteriorate the CNT quality by shortening and causing curvature of the tubes (Tan et al, 2006;Nayan et al, 2017).…”

Section: Other Production Methods Of Cnt-cu Compositesmentioning

confidence: 99%

“…However, considerable agglomeration of CNTs is typically reported as a problem of high temperature methods, when the nanotube fraction increases beyond ~1-2 wt% (e.g., Huang et al 2017;Deng et al 2017;Daoush et al, 2009;Nayan et al, 2017), which also leads to increased porosity of the composite (Guiderdoni et al, 2013). Mechanical dispersion of CNTs with copper requires considerable energy, which could deteriorate the CNT quality by shortening and causing curvature of the tubes (Tan et al, 2006;Nayan et al, 2017). The properties of CNT-Cu composites and their relation to the production process are discussed in the next section.…”

Section: Other Production Methods Of Cnt-cu Compositesmentioning

confidence: 99%

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Corrosion behaviour of cast and deformed copper-carbon nanotube composite wires in chloride media

Hannula

Masquelier

Lassila

et al. 2018

Journal of Alloys and Compounds

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I never actually seriously considered pursuing a doctoral degree before the opportunity presented itself. But I'm so glad I did. I want to thank my parents, Simo-Pekka and Leena, for always encouraging me to further educate myself. Thanks for always having the time to share your advice, even if I didn't think I needed it. I want to thank my sisters Laura and Krista and my brother-in-law Risto, who have always supported me (and kept me grounded!) in my endeavours. Lukas and Tomas, you are still too young to read this, but I'm so happy for having such awesome nephews in my life. Finally, thank you Tuuli for always being there for me and seeing the best in me.

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Theoretical and experimental studies of nucleation and interface structure between carbon nanotubes and metals

Wang

Zhang²,

Zhu³

et al. 2023

J Mater Sci

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Processing and characterization of spark plasma sintered copper/carbon nanotube composites

Cited by 57 publications

References 45 publications

One Step Synthesis of Covalent Connected Three-dimensional Graphene/Carbon Nanotube for Olaquindox Electrochemical Sensor

One Step Synthesis of Covalent Connected Three-dimensional Graphene/Carbon Nanotube for Olaquindox Electrochemical Sensor

Corrosion behaviour of cast and deformed copper-carbon nanotube composite wires in chloride media

Theoretical and experimental studies of nucleation and interface structure between carbon nanotubes and metals

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