scholarly journals Thermal transport in planar sp2-hybridized carbon allotropes: A comparative study of biphenylene network, pentaheptite and graphene

Author(s):  
Penghua Ying ◽  
Ting Liang ◽  
Yao Du ◽  
Jin Zhang ◽  
Xiaoliang Zeng ◽  
...  
2010 ◽  
Vol 14 (1) ◽  
pp. 31-38 ◽  
Author(s):  
Sunday Etuk ◽  
Louis Akpabio ◽  
Ita Akpan

Thermal conductivity values at the temperature of 301-303K have been measured for Zea mays straw board as well as Zea mays heartwood (cork) board. Comparative study of the thermal conductivity values of the boards reveal that Zea mays heartwood board has a lower thermal conductivity value to that of the straw board. The study also shows that the straw board is denser than the heartwood board. Specific heat capacity value is less in value for the heartwood board than the straw board. These parameters also affect the thermal diffusivity as well as thermal absorptivity values for the two types of boards. The result favours the two boards as thermal insulators for thermal envelop but with heartwood board as a preferred insulation material than the straw board.


2013 ◽  
Vol 21 (6) ◽  
pp. 472-484 ◽  
Author(s):  
Afsaneh Safavi ◽  
Norooz Maleki ◽  
Farzaneh Aghakhani Mahyari ◽  
Mohammad Mahdi Doroodmand

2021 ◽  
Author(s):  
Penghua Ying ◽  
Ting Liang ◽  
Yao Du ◽  
Jin Zhang ◽  
Xiaoliang Zeng ◽  
...  

The biphenylene network with periodically arranged four-, six-, and eightmembered rings has been successfully synthesized in very recent experiments. This novel two-dimensional (2D) carbon allotrope has potentials in applications of lithium storage and carbon-based circuitry. Understanding the thermal transport properties of biphenylene network is of critical importance for the performance and reliability of its practical applications. To this end, the thermal transport in biphenylene network is comprehensively investigated in this paper with the aid of molecular dynamics simulations together with first-principles calculations. For the sake of comparison, the thermal conductivities of other 2D sp2-hybridized carbon allotropes including graphene and pentaheptite are also investigated using the same method. It is found that the thermal conductivities of biphenylene network and pentaheptite are, respectively, only about one-thirteenth and one-eighth of graphene. Through the analysis of phonon property, mechanical property and electron density distribution, it is demonstrated that the great reduction in the thermal conductivity of biphenylene network and pentaheptite arises from the decline in their structural symmetry, which leads to the decrease of phonon group velocity and the reduction of phonon mean free path.


2021 ◽  
Vol 120 ◽  
pp. 108618
Author(s):  
Liping Shi ◽  
Xiaoliang Ma ◽  
Yesheng Zhong ◽  
Mingwei Li ◽  
Weilong Yin ◽  
...  

2017 ◽  
Vol 95 (8) ◽  
Author(s):  
Sheng-Ying Yue ◽  
Guangzhao Qin ◽  
Xiaoliang Zhang ◽  
Xianlei Sheng ◽  
Gang Su ◽  
...  

2D Materials ◽  
2017 ◽  
Vol 5 (1) ◽  
pp. 015022 ◽  
Author(s):  
Huimin Wang ◽  
Guangzhao Qin ◽  
Guojian Li ◽  
Qiang Wang ◽  
Ming Hu

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