scholarly journals Zn- and Ti-Modified Hydrotalcites for Transesterification of Dimethyl Terephthalate with Ethylene Glycol: Effect of the Metal Oxide and Catalyst Synthesis Method

ACS Omega ◽  
2020 ◽  
Vol 5 (5) ◽  
pp. 2088-2096 ◽  
Author(s):  
Amarsinh L. Jadhav ◽  
Radhika S. Malkar ◽  
Ganapati D. Yadav
2004 ◽  
Vol 14 (4) ◽  
pp. 695 ◽  
Author(s):  
Xuchuan Jiang ◽  
Yuliang Wang ◽  
Thurston Herricks ◽  
Younan Xia

2019 ◽  
Vol 10 (31) ◽  
pp. 7333-7339 ◽  
Author(s):  
Zhao Zheng ◽  
Qianjie Zhou ◽  
Mu Li ◽  
Panchao Yin

PEG–POM nanocomposites are ideal candidates for semi-solid proton conductors with high proton conductivities and devisable mechanical performances.


2020 ◽  
Vol 10 (1) ◽  
Author(s):  
M. C. Mbambo ◽  
M. J. Madito ◽  
T. Khamliche ◽  
C. B. Mtshali ◽  
Z. M. Khumalo ◽  
...  

Abstract We report on the synthesis and thermal conductivity of gold nanoparticles (AuNPs) decorated graphene nanosheets (GNs) based nanofluids. The GNs-AuNPs nanocomposites were synthesised using a nanosecond pulsed Nd:YAG laser (wavelength = 1,064 nm) to ablate graphite target followed by Au in ethylene glycol (EG) base fluid to obtain GNs-AuNPs/EG hybrid nanofluid. The characterization of the as-synthesised GNs-AuNPs/EG hybrid nanofluid confirmed a sheet-like structure of GNs decorated with crystalline AuNPs with an average particle diameter of 6.3 nm. Moreover, the AuNPs appear smaller in the presence of GNs which shows the advantage of ablating AuNPs in GNs/EG. The thermal conductivity analysis in the temperature range 25–45 °C showed that GNs-AuNPs/EG hybrid nanofluid exhibits an enhanced thermal conductivity of 0.41 W/mK compared to GNs/EG (0.35 W/mK) and AuNPs/EG (0.39 W/mK) nanofluids, and EG base fluid (0.33 W/mK). GNs-AuNPs/EG hybrid nanofluid displays superior enhancement in thermal conductivity of up to 26% and this is due to the synergistic effect between AuNPs and graphene sheets which have inherent high thermal conductivities. GNs-AgNPs/EG hybrid nanofluid has the potential to impact on enhanced heat transfer technological applications. Also, this work presents a green synthesis method to produce graphene-metal nanocomposites for various applications.


1984 ◽  
Vol 15 (6) ◽  
pp. 404-408
Author(s):  
P. V. Smirnov ◽  
V. V. Kiselev ◽  
L. P. Repina ◽  
�. M. Aizenshtein ◽  
N. M. Kvasha ◽  
...  

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