Impact of Atomic Coating on Thermal Conductivity of Nano Materials

Abstract

In the past two decades, with the rapid progress in synthesis of nanoscale materials and manufacturing of low-dimensional structures, it has created a great demand for understanding of thermal transport in nanoscale. The study of heat conduction in nanoscale is beneficial to many applications such as thermal management, thermal protection, thermoelectrics as well as phonon informatics. Here, we provide the reader with insight and an eye-opening review of the impact of atomic coating on the thermal conduction in low-dimensional structures, specially in coherent phonon regime. Typical systems including semiconducting nanowires, carbon nanotubes, two-dimension materials and nanoscale thin film have been considered. This review aims to summarize recent advances with theoretical, experimental and simulative studies toward understanding of thermal conductivity of nano materials with atomic coating. We also report the importance of the top-layer coating on the interfacial thermal conductance in twodimensional devices.

Boron nitride whiskers and nano alumina synergistically enhancing the vertical thermal conductivity of epoxy-cellulose aerogel nanocomposites

“…3c-f), which provides an effective theoretical support for the ideal mechanical support of composite. Especially, when the mass ratio of BNWK to nano-Al 2 O 3 is 1:7, the nano-Al 2 O 3 bound on the surface of BNWK through electrostatic self-assembly begins to connect with each other between adjacent vertical skeleton BNWKs, which is greatly bene cial to the heat dissipation performance [41].…”

Two-dimensional MX2Y4 systems: ultrahigh carrier transport and excellent hydrogen evolution reaction performances

“…12,13 Other popular 2D materials (such as transition metal dichalcogenides (TMDs), 14 antimonene 15 and phosphorene 16 ) have also been synthetized and have been found to have various potential applications. 2,17 MoS 2 monolayers show a moderate bandgap of about 1.6 eV 18 compared to bulk MoS 2 (about 0.3 eV), 19 which makes it possess an excellent optical performance of conversion efficiency of about 5%, 20 making it promising as a potential photocatalyst for water splitting. 21 However, the carrier mobility of TMD monolayers is very low, like MoS 2 (200 cm 2 V À1 s À1 ), 22 WS 2 (542 cm 2 V À1 s À1 ), 23 and MoSSe (193 cm 2 V À1 s À1 ), 24 suggesting an absence of advantages in exciton migration.…”

Hydroxyapatite coatings: a critical review on electrodeposition parametric variations influencing crystal facet orientation towards enhanced electrochemical sensing

“…To mitigate these mechanical and electrical restrictions, HAp is generally coupled as a composite with metallic and metal oxide substrates of Ti, Mg, and carbon-based composites to act as a backbone of sorts in enhancing its mechanical properties 9 and in providing a point of electrical contact and conduction. Nanocomposite coatings are considered an effective strategy in the fabrication of heterogeneous materials 10,11 resulting in improvement in physico-chemical properties, [12][13][14][15][16][17][18] mitigating detrimental degradation, [19][20][21] and in enhancing its applicative aspects towards increased efficacy, [22][23][24][25] in reinforcement, [26][27][28][29] and sustainability. 30 The fabrication of these nanocomposites offers a certain degree of flexibility in their respective field of application.…”