Synthesis of Cu–Al layered double hydroxide nanofluid and characterization of its thermal properties

Chakraborty, Samarshi; Sarkar, Ishita; Haldar, Krishnayan; Pal, Surjya K.; Chakraborty, Sudipto

doi:10.1016/j.clay.2015.01.009

Cited by 65 publications

(22 citation statements)

References 49 publications

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“…The addition of Cu-Al LDH nanoparticles displayed no significant effect on the surface tension of the base fluid due to its surface inactive nature, as reported by authors [16]. However, upon the addition of surfactants, the surface tension of nanofluid shows a decrease in comparison to that of base fluid.…”

Section: Surface Tension Analysismentioning

confidence: 52%

“…In the present study, the measurement was carried out by a thermal property analyzer, KD2 (Decagon Devices, USA), which comprises of a sensor needle encompassing a heating element and a thermistor. The instrument can be operated within a temperature range of 253-333 K. It was observed that the thermal conductivity of the base fluid was enhanced upon the addition of Cu-Al LDH nanoparticles [16] and different additives (Tween 20, SDS, CTAB and PVP), the enhancement being more in case of the latter as shown in Table 2. The presence of dispersants attributes to 28% enhancement in thermal conductivity due to elevated nanoparticle interaction.…”

Section: Thermal Conductivity Analysismentioning

confidence: 96%

“…where M 2+ denotes a divalent cation, M 3+ a trivalent cation, A the interlayer anion with charge 'mÀ' and x and y the fraction constants [19]. The preparation of Cu-Al LDH nanofluids via one step method has been described in an earlier study carried out by researchers [16]. The optimum concentration of nanofluids obtained from the study, i.e.…”

Section: Introductionmentioning

confidence: 99%

“…A system which has not been explored much in terms of its thermal properties is layered double hydroxide (LDH). From literature, it was observed that Cu-Al LDH nanofluid exhibited a significant enhancement in thermal conductivity, which made it suitable for use in various heat transfer enhancement methods [16].…”

Section: Introductionmentioning

confidence: 99%

“…120 ppm, has been used as the base coolant along with the different additives at the respective optimized concentrations, as described in Table 1. The size analysis was carried out [16] and it was observed that the addition of surfactants could bring in a uniform distribution of nanoparticles.…”

Section: Introductionmentioning

confidence: 99%

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confidence: 52%

Section: Thermal Conductivity Analysismentioning

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A novel magnetic layered double hydroxide as potent mesoporous recyclable heterogeneous nanocatalyst for the synthesis of 1H‐chromeno[2,3‐b]pyridine‐3‐carbonitrile derivatives

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A magnetically separable cobalt complex of macrocyclic pseudo-crown ether (PCE) immobilized on magnetic Cu/Al-layered double hydroxide (γ-Fe 2 O 3 @Cu 3 Al-layered double hydroxide (LDH)/PCE-Co) was readily fabricated using a simple four-step postsynthetic modification strategy. This newly prepared nanocomposite was characterized by different chemo-physical approaches, including Fourier transform infrared (FT-IR), scanning electron microscopy (SEM), transmission electron microscopy (TEM), inductively coupled plasma optical emission spectroscopy (ICP-OES), vibrating sample magnetometer (VSM), X-ray diffraction (XRD), nitrogen adsorptiondesorption isotherms, energy-dispersive X-ray spectroscopy (EDX), and elemental mapping. The catalytic performance of these nanoparticles (NPs) was explored in the synthesis of diverse 1H-chromeno[2,3-b]pyridine-3-carbonitrile derivatives via one-pot three-component reactions under green reaction conditions. Environmentally benign reaction conditions, simple separation, high yields of the reactions, versatility, easy magnetic separation, and reusability for several runs without significant loss of catalytic performance are the key advantages that make this protocol an ideal alternative method for the synthesis of chromene derivatives.

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Synthesis of Cu–Al layered double hydroxide nanofluid and characterization of its thermal properties

Cited by 65 publications

References 49 publications

Heat transfer in jet impingement on a hot steel surface using surfactant based Cu–Al layered double hydroxide nanofluid

Heat transfer in jet impingement on a hot steel surface using surfactant based Cu–Al layered double hydroxide nanofluid

Design and Synthesis of Nanofluid Fuels

A novel magnetic layered double hydroxide as potent mesoporous recyclable heterogeneous nanocatalyst for the synthesis of 1H‐chromeno[2,3‐b]pyridine‐3‐carbonitrile derivatives

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