The preparation of CeF3 nanocluster capped with oleic acid by extraction method and application to lithium grease

Wang, Libo; Zhang, Ming; Wang, Xiaobo; Liu, Weimin

doi:10.1016/j.materresbull.2007.08.024

Cited by 62 publications

(23 citation statements)

References 16 publications

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“…The peak at around 1,702 cm -1 in IR spectrum of stearic acid belongs to carbonyl stretch of stearic acid [29], which disappeared in the spectrum of SA-TiO 2 , indicating that the chemical reaction took place between stearic acid and anatase. At the same time, in the spectrum of SA-TiO 2 the peaks at around 1,539 and 1,447 cm -1 are also observed which are ascribed to m(COO) asym and m(COO) sym , respectively [30], resulting from the formation of steareate. However, the spectrum of unmodified TiO 2 nanoparticles shows no evidence of those above-mentioned peaks at around 1,539 and 1,447 cm -1 .…”

Section: Characterizationmentioning

confidence: 80%

Synthesis and Tribological Properties of Stearic Acid-Modified Anatase (TiO2) Nanoparticles

et al. 2010

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Anatase (TiO 2 ) nanoparticles with an average diameter of 10 nm were synthesized by solvothermal method followed by surface modification with stearic acid (SA). As-prepared, the nanoparticles (SA-TiO 2 ) were characterized by X-ray diffraction (XRD), high-resolution transmission electron microscopy (HRTEM), Fourier transform infrared spectroscopy (FT-IR), and thermogravimetry (TGA) and differential scanning calorimetry (DSC). The tribological properties of SA-TiO 2 as an additive of liquid paraffin (LP) were evaluated by a fourball tester. The results show that LP with SA-TiO 2 exhibited good anti-wear and friction-reduction properties under the all applied loads. Comparing LP with LP-containing SA, LP-containing TiO 2 , and LP-containing SA-TiO 2 , the LP-containing SA-TiO 2 had the best load-carrying capacity. It was deduced that the boundary lubricating film was mainly composed of TiO 2 deposits and an adsorbing film of SA which contribute to the excellent lubricating effect of SA-TiO 2 in LP.

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Section: Characterizationmentioning

confidence: 80%

Synthesis and Tribological Properties of Stearic Acid-Modified Anatase (TiO2) Nanoparticles

et al. 2010

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“…In tribology, some nanomaterials were added into lubricating oil/grease to improve extreme pressure, anti-wear and friction-reduction properties [1]. In particular, the tribological properties of metals [2][3][4][5][6][7][8], metal oxides [9][10][11][12][13][14][15], metal sulphides [16][17][18][19], rare earth compounds [20][21][22][23][24], and borides [25][26][27][28] used as lubricating additives have been investigated. They can greatly improve the anti-wear and extreme pressure properties, reduce friction coefficient, and even retard the thermoinduced oxidation of lubricating oil/grease.…”

Section: Introductionmentioning

confidence: 99%

Tribological Properties of CaCO3 Nanoparticles as an Additive in Lithium Grease

et al. 2010

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CaCO 3 nanoparticles with an average size of 45 nm were synthesized via the carbonation method. The tribological properties of the CaCO 3 nanoparticles as an additive in lithium grease were evaluated with a four-ball tester. The results show that these CaCO 3 nanoparticles exhibit good performance in anti-wear and friction-reduction, load-carrying capacity, and extreme pressure properties. The action mechanism was estimated through analysis of the worn surface with X-ray photoelectron spectroscopy (XPS) and scanning electron microscope (SEM). The results indicate that a boundary film mainly composed of CaCO 3 , CaO, iron oxide, and other organic compounds was formed on the worn surface during the friction process.

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“…In tribology, some nanomaterials, such as carbon compound, metal, metal oxide, metal sulfide and metal salt, were added into lubricating oil or grease for friction-reduction and improving anti-wear and extreme pressure properties [13][14][15]. The mechanisms of friction reduction and enhanced load-carrying capacity of nanoparticles in lubricants are summarized as the result of rolling effect, mending effect, protective film and polishing effect [16].…”

Section: Introductionmentioning

confidence: 99%

Tribological properties and tribochemical analysis of nano-cerium oxide and sulfurized isobutene in titanium complex grease

Tiejun

Wang

Yun

et al. 2016

Tribology International

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The preparation of CeF3 nanocluster capped with oleic acid by extraction method and application to lithium grease

Cited by 62 publications

References 16 publications

Synthesis and Tribological Properties of Stearic Acid-Modified Anatase (TiO2) Nanoparticles

Synthesis and Tribological Properties of Stearic Acid-Modified Anatase (TiO2) Nanoparticles

Tribological Properties of CaCO3 Nanoparticles as an Additive in Lithium Grease

Tribological properties and tribochemical analysis of nano-cerium oxide and sulfurized isobutene in titanium complex grease

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