Synthesis of water-soluble Cu nanoparticles and evaluation of their tribological properties and thermal conductivity as a water-based additive

Zhao, Junhua; Yang, Guangbin; Zhang, Chunli; Zhang, Yujuan; Zhang, Shengmao; Zhang, Pingyu

doi:10.1007/s40544-018-0209-7

Cited by 32 publications

(22 citation statements)

References 37 publications

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“…Further investigation suggested that such an ultrathick tribofilm dominated by Pd/S compounds is responsible for the superior lubricating behavior, as shown in Fig. 14. Zhao et al [163] prepared water-soluble Cu nanoparticles of size approximately 3 nm at room temperature via in-situ surface modification. The tribological behavior of such Cu nanoparticles as an additive in distilled water can significantly improve the tribological properties of distilled water and the lowest friction coefficient of 0.06 was obtained via lubrication with a concentration of 0.6 wt% of Cu nanoparticles in distilled water, which is a reduction of 80.6% compared with that obtained via lubrication with distilled water alone.…”

Section: Inorganic Additivementioning

confidence: 99%

A review of recent advances in tribology

et al. 2020

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The reach of tribology has expanded in diverse fields and tribology related research activities have seen immense growth during the last decade. This review takes stock of the recent advances in research pertaining to different aspects of tribology within the last 2 to 3 years. Different aspects of tribology that have been reviewed including lubrication, wear and surface engineering, biotribology, high temperature tribology, and computational tribology. This review attempts to highlight recent research and also presents future outlook pertaining to these aspects. It may however be noted that there are limitations of this review. One of the most important of these is that tribology being a highly multidisciplinary field, the research results are widely spread across various disciplines and there can be omissions because of this. Secondly, the topics dealt with in the field of tribology include only some of the salient topics (such as lubrication, wear, surface engineering, biotribology, high temperature tribology, and computational tribology) but there are many more aspects of tribology that have not been covered in this review. Despite these limitations it is hoped that such a review will bring the most recent salient research in focus and will be beneficial for the growing community of tribology researchers.

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Section: Inorganic Additivementioning

confidence: 99%

A review of recent advances in tribology

et al. 2020

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“…Many nanomaterials are beneficial for improving tribological properties of water-based lubricants [6][7][8]. Graphene and graphene oxide [9][10][11], carbon dots [12], hard carbon spheres [13], carbon nanotubes [14], ionic liquids [15], sulfides [16][17][18], oxides [2,7,19], and metal nanocopper [20,21] have been designed and synthesized to improve the performance of water. Furthermore, a number of lubrication mechanisms have been proposed to explain the improvement of tribological performance, including: (a) formation of physical or/and chemical tribofilms.…”

Section: Introductionmentioning

confidence: 99%

“…In addition, Minakov et al [46] used CuO nanoparticles, modified with xanthan gum polymers, as nano-fluid additives and demonstrated a significant increase in the heat transfer coefficient and the coefficient was proportional to the concentration of CuO additive. Previous studies have demonstrated that nanomaterials with good thermal conductivity can accelerate heat transfer and reduce localized high temperatures of frictional surfaces [18,21].…”

Section: Introductionmentioning

confidence: 99%

Controllable synthesis of different morphologies of CuO nanostructures for tribological evaluation as water-based lubricant additives

et al. 2020

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In this study, water soluble CuO nanostructures having nanobelt, nanorod, or spindle morphologies were synthesized using aqueous solutions of Cu(NO 3) 2 3H 2 O and NaOH by adjusting the type of surface modifier and reaction temperature. The effect of morphologies of these various CuO nanostructures as water-based lubricant additives on tribological properties was evaluated on a UMT-2 micro-friction tester, and the mechanisms underlying these properties are discussed. The three different morphologies of CuO nanostructures exhibited excellent friction-reducing and anti-wear properties. Tribological mechanisms differed in the initial stage of frictional interactions, but in the stable stage, a tribochemical reaction film and adsorbed lubricious film on the rubbing surfaces played important roles in hindering direct contact between friction pairs, leading to improved tribological properties.

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“…The results showed that the lowest friction coefficient of 0.06 was obtained via lubrication with a concentration of 0.6 wt% of Cu nanoparticles in distilled water. 13 Unfortunately, the large volume and poor dispersion stability of BN is a severe limitation in the application of water-based lubricant additives. 14,15 Li et al had investigated the nanoscale tribological properties of hexagonal boron nitride nanosheets (BNNS) deposited on a silicon oxide substrate.…”

Section: Introductionmentioning

confidence: 99%

“…For example, Zhao et al had prepared water‐soluble Cu nanoparticles. The results showed that the lowest friction coefficient of 0.06 was obtained via lubrication with a concentration of 0.6 wt% of Cu nanoparticles in distilled water . Unfortunately, the large volume and poor dispersion stability of BN is a severe limitation in the application of water‐based lubricant additives …”

Section: Introductionmentioning

confidence: 99%

Atomically thin hydroxylation boron nitride nanosheets for excellent water‐based lubricant additives

Bai

Wang

et al. 2020

J Am Ceram Soc

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Hexagonal Boron nitride (BN) can be used as a lubricant additive, which can dramatically reduce friction energy. However, due to the accumulation of BN in the water-based lubricants and the difficulty of entering the friction contact area, the tribological performance of BN becomes worse. To address this issue, the atomically thin hydroxylated boron nitride nanosheets (HO-BNNS) were successfully prepared. The thickness of HO-BNNS is only 0.6-0.8 nm. Meanwhile, the HO-BNNS has excellent dispersion stability in water-based lubricants because of the hydroxyl group on the surface of HO-BNNS. The as-prepared HO-BNNS exhibits unique friction properties as a water-based dispersible lubricant additive. Additionally, the average wear scar diameter, average friction coefficient, and mean wear volume of HO-BNNS/water-based (0.05 wt%) drop by about 64.7%, 60%, and 95.73%. Finally, the introduction of HO-BNNS can well control the temperature of water-based lubricant.

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Synthesis of water-soluble Cu nanoparticles and evaluation of their tribological properties and thermal conductivity as a water-based additive

Cited by 32 publications

References 37 publications

A review of recent advances in tribology

A review of recent advances in tribology

Controllable synthesis of different morphologies of CuO nanostructures for tribological evaluation as water-based lubricant additives

Atomically thin hydroxylation boron nitride nanosheets for excellent water‐based lubricant additives

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