Surface-mechanical and electrical properties of pulse electrodeposited Cu–graphene oxide composite coating for electrical contacts

Maharana, H.S.; K., P.; Basu, A.

doi:10.1007/s10853-016-0405-7

Cited by 89 publications

(42 citation statements)

References 58 publications

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“…With increase in the graphene content, such graphene-rich films usually become more continuous and get thicker, causing a further decrease of the friction coefficient. However, an increase in the friction coefficient with increase in the graphene content [72,114] has been occasionally observed (Fig. 39).…”

Section: Tribological Propertiesmentioning

confidence: 94%

“…The electrodeposition technique is an easy, cost-effective and scalable method to fabricate Cu/graphene composite coatings [72,[112][113][114] and foils or films [19-21, 24, 31, 33, 48]. In addition, electrodeposition being a low temperature process preserves the properties of graphene during the preparation of the composites, unlike in the conventional sintering processes, which may damage graphene because they may involve temperatures higher than its decomposition temperature ([ 600°C) [31].…”

Section: Electrodepositionmentioning

confidence: 99%

“…To disperse graphene sheets uniformly into the electrolyte is one of the main challenges to synthesise graphene enhanced nanocomposites by electrodeposition [72]. Stirring [24,31,33,48,114] can be used to keep graphene in suspension during electrodeposition. Additions of anionic or polymeric surfactants have also been used to improve the wettability of the substrate to be coated and to prevent agglomeration [31,113,114].…”

Section: Electrodepositionmentioning

confidence: 99%

“…Stirring [24,31,33,48,114] can be used to keep graphene in suspension during electrodeposition. Additions of anionic or polymeric surfactants have also been used to improve the wettability of the substrate to be coated and to prevent agglomeration [31,113,114]. These additions may, however, introduce heterogeneous impurities, that weaken the interfacial bonding of graphene sheets and matrix, adversely affecting the mechanical and physical properties of the composite coatings.…”

Section: Electrodepositionmentioning

confidence: 99%

“…The electrical conductivity of CMC coatings filled with different contents of GO, chemically reduced GO (RGO) and thermally reduced GO (TRGO) is presented in Fig. 31 [114]. It can be observed that the Cu/GO composite coatings show very low conductivity compared to the Cu/RGO and the Cu/TRGO composite coatings, which is due to the insulating nature of GO caused by the presence of a high amount of oxygen.…”

Section: Influence Of Graphene Derivative and Sizementioning

confidence: 99%

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Copper/graphene composites: a review

Hidalgo-Manrique

Lei²,

Xu³

et al. 2019

J Mater Sci

218

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Recent research upon the incorporation of graphene into copper matrix composites is reviewed in detail. An extensive account is given of the large number of processing methods that can be employed to prepare copper/graphene composites along with a description of the microstructures that may be produced. Processing routes that have been employed are described including powder methods, electrochemical processing, chemical vapour deposition, layer-by-layer processing, liquid metal infiltration among a number of others. The mechanical properties of the composites are described in detail along with an account of the structural factors that control mechanical behaviour. The mechanics and mechanisms of deformation are discussed, and the effect of factors such as the graphene content and the type of graphene used, along with processing conditions for the fabrication of the composites, is described. The functional properties of copper/graphene composites are also reviewed including their electrical and thermal properties, and tribological and corrosion behaviour. In each case, the effect of the graphene type and content, and processing conditions are also described. Finally, possible future applications of copper/graphene composites are discussed.

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Section: Tribological Propertiesmentioning

confidence: 94%

Section: Electrodepositionmentioning

confidence: 99%

Section: Electrodepositionmentioning

confidence: 99%

Section: Electrodepositionmentioning

confidence: 99%

Section: Influence Of Graphene Derivative and Sizementioning

confidence: 99%

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Copper/graphene composites: a review

Hidalgo-Manrique

Lei²,

Xu³

et al. 2019

J Mater Sci

218

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Superior ammonia sensing properties of PET‐supported polyaniline/reduced graphene oxide/zinc ferrite ternary nanocomposite thin film at room temperature

Kundu,

Majumder,

Pal Chowdhury

2023

J of Applied Polymer Sci

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This article introduces a ternary nanocomposite‐based flexible thin film ammonia sensor developed on transparent polyethylene terephthalate (PET) substrate in the well‐known in situ chemical oxidative polymerization technique. The nanocomposite consists of three different materials: polyaniline (PANI), reduced graphene oxide (rGO), and zinc ferrite (ZF). Keeping the PANI amount constant, seven PANI/rGO/ZF (PRZ) samples are produced by performing stoichiometric variation between rGO and ZF. Later on, various structural, morphological, and spectroscopic analysis of all the composite materials is accomplished with field emission scanning electron microscopy (FESEM), high‐resolution transmission electron microscopy (HRTEM), X‐ray diffraction (XRD), Raman spectroscopy, Fourier transform infrared spectroscopy (FTIR), and ultraviolet–visible spectroscopy (UV–Vis). The sensing performance of the as‐produced sensors toward ammonia (NH3) is examined in the concentration range from 250 ppb to 100 ppm. The study reveals the excellent sensing ability of the PRZ3 sensor (rGO = 30%, ZF = 20%) achieving minimum and maximum responsivity values of ~51% and ~1052%, respectively, at the lowest (250 ppb) and highest (100 ppm) concentration of ammonia. The sensor also exhibits admirable repeatability, good dynamic responsivity, rapid response (tres ~2.9–5 s), moderately faster recovery (trec ~37.9–69.7 s), superb linearity against ppm variation (R2 ~ 0.989), low detection limit (~123 ppb), and exceptional selectivity toward ammonia. The substrate temperature variation divulges that room temperature (30°C) is the ideal temperature for getting outstanding responsivity of the sensor. The study is further accompanied by humidity variation in the incoming air and bending flexibility test of the substrate. A compulsory and legitimate model regarding the sensing mechanism is presented at the end.

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Ultra‐Sensitive and Highly Stretchable Strain Sensors for Monitoring of Human Physiology

Verma

Sahu

Rathod

et al. 2021

Macro Materials & Eng

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The flexible strain sensors have potential applications in advanced electronics, health monitoring systems, wearable sensors, robotics, and human-machine interfaces. The development of highly sensitive, stretchable, and durable strain sensors is a challenging task for researchers. However, the sensors with a detection range from large strain to minute deflection are imperative for human-interactive applications. This work has demonstrated a facile method of sensor fabrication, which use reduced graphene oxide (rGO) as sensing material and silicone sealant as a flexible substrate. Few-layer rGO is synthesized by electrochemical exfoliation of pencil lead. The fabricated sensors have a gauge factor higher than 4000 and durability longer than 1600 cycles at 100% strain. At the same time, developed strain sensors exhibit detection capability over a wide range of strain (0-120%), which is an essential requirement of wearable sensors. To the best of the authors' knowledge, fewer works have reported strain sensors that have ultra-high gauge factor (≥4000) in combination with high stretchability (>100%). Utilizing the ultra-sensitivity and sub-second response time of the rGO-sealants, these wearable sensors are used to monitor physical activities, heartbeats, and finger touches.

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Surface-mechanical and electrical properties of pulse electrodeposited Cu–graphene oxide composite coating for electrical contacts

Cited by 89 publications

References 58 publications

Copper/graphene composites: a review

Copper/graphene composites: a review

Superior ammonia sensing properties of PET‐supported polyaniline/reduced graphene oxide/zinc ferrite ternary nanocomposite thin film at room temperature

Ultra‐Sensitive and Highly Stretchable Strain Sensors for Monitoring of Human Physiology

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