Silver coated and filled carbon nanotubes: Synthesis, electrical and thermal properties, and iodine vapor sensing

2021 ◽  
pp. 108551
Author(s):  
Robin Kumar ◽  
Jagjiwan Mittal ◽  
Monica Jaiswal
2012 ◽  
Vol 51 ◽  
pp. 045101 ◽  
Author(s):  
Hyung Goo Park ◽  
Sukju Hwang ◽  
Juhwan Lim ◽  
Duck-Hwan Kim ◽  
In Sang Song ◽  
...  

2013 ◽  
Vol 115 (1) ◽  
pp. 345-354 ◽  
Author(s):  
Katakam Madhukar ◽  
Annadanam V. Sesha Sainath ◽  
Nampally Bikshamaiah ◽  
Yekkala Srinivas ◽  
Nandru M. Babu ◽  
...  

Author(s):  
Jorge Silva-Yumi ◽  
Telmo Moreno Romero ◽  
Gabriela Chango Lescano

Nanofluids constitute an alternative for the most efficient use of energy as they allow generating or improving thermal properties among others of traditional fluids, they are defined as so-called base fluids, such as: water, ethylene glycol, oils, etc., which contain nanoparticles in suspension , such as: aluminum oxide, silicon oxide, titanium oxide, metal nanoparticles, carbon nanotubes, graphene, carbides, etc. Nanofluids can be synthesized by two methods, the nanoparticles can be obtained separately and then the nanofluid is prepared or both nanoparticles and the nanofluid can be prepared simultaneously, an important factor to consider in obtaining nanofluids is their stability. Stability can be achieved by physical treatment or chemical treatment using surfactants. There are many studies about nanofluids, however, most are obtained with synthetic nanoparticles, leaving the use of natural nanoparticles as a field to be explored, as well as other surfactants to improve their stability. Keywords: nanofluids, hybrid nanofluids, nanoparticles, nano refrigerant. Resumen Los nanofluidos constituyen una alternativa para el uso más eficiente de energía pues permiten generar o mejorar las propiedades térmicas entre otras de los fluidos tradicionales, son definidos como fluidos denominados base, como: agua, etilenglicol, aceites, etc., que contienen nanopartículas en suspensión, como: óxido de aluminio, óxido de silicio, óxido de titanio, nanopartículas metálicas, nanotubos de carbono, grafeno, carburos, etc. Los nanofluidos se pueden sintetizar por dos métodos, se pueden obtener las nanopartículas por separado y luego preparar el nanofluido o se puede preparar simultáneamente las nanopartículas y el nanofluido, un factor importante a considerar en la obtención de nanofluidos es su estabilidad. La estabilidad se puede lograr mediante tratamiento físico o tratamiento químico mediante la utilización de surfactantes. Existen muchos estudios acerca de nanofluidos sin embargo, la mayoría se obtienen con nanopartículas sintéticas, quedando el uso de nanopartículas naturales como un campo por explorar al igual que otros surfactantes para mejorar su estabilidad. Palabras Clave: nanofluidos, nonofluidos híbridos, nanoparticulas, nanorefrigerantes.


2019 ◽  
Vol 54 (8) ◽  
pp. 6227-6237 ◽  
Author(s):  
Weifang Han ◽  
Wei Song ◽  
Yuxiang Shen ◽  
Chunhua Ge ◽  
Rui Zhang ◽  
...  

2020 ◽  
Vol 816 ◽  
pp. 152525
Author(s):  
M.C. Bouleklab ◽  
S. Hamamda ◽  
Y. Naoui ◽  
S. Nedilko ◽  
T. Avramenko ◽  
...  

2015 ◽  
Vol 1727 ◽  
Author(s):  
M. Rifu ◽  
K. Shintani

ABSTRACTThe thermal conductivities of pillared-graphene nanostructures (PGNSs) are obtained using nonequilibrium molecular-dynamics simulation. It is revealed their thermal conductivities are much smaller than the thermal conductivities of carbon nanotubes (CNTs). This fact is explained by examining the density of states (DOS) of the local phonons of PGNSs. It is also found the thermal conductivity of a PGNS linearly decreases with the increase of the inter-pillar distance.


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