Formation of Carbon Nanotubes and Microsilica during the Production of Crystalline Silicon in Three-Phase Ore-Thermal Furnaces

2021 ◽  
Vol 62 (6) ◽  
pp. 771-777
Author(s):  
M. P. Kuz’min ◽  
V. V. Kondratiev ◽  
A. S. Kuz’mina ◽  
A. E. Burdonov ◽  
Jia Q. Ran
Polymers ◽  
2020 ◽  
Vol 12 (8) ◽  
pp. 1821
Author(s):  
Shun Naito ◽  
Jun Koyanagi ◽  
Takuji Komukai ◽  
Toshikazu Uno

In this study, the three-phase structure consisting of epoxy resin, carbon nanotubes (CNTs), and graphene, which is assumed to be the surface of carbon fiber, was simulated using molecular dynamics. Models in which the CNT number and initial position of CNT are varied were prepared in this study. Relaxation calculation for each three-phase model was implemented, and the movement of molecules was investigated. When CNTs are located between the graphene and epoxy at initial, how the epoxy approaches to graphene was discussed. Besides, interaction energies between CNT/graphene, CNT/epoxy, and graphene/epoxy were evaluated after relaxations. The value of the interaction energy between two individual molecules (epoxy resin and graphene, CNTs and graphene, epoxy resin and CNTs) among three-phase structure were obtained, respectively, and those mechanisms were discussed in this study.


2017 ◽  
Vol 21 (1) ◽  
pp. 17-23
Author(s):  
V.N. Petrovskaya ◽  
V.V. Kondratiev ◽  
A.A. Nemarov ◽  
A.A. Petrovsky

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Shaan Bibi Jaffri ◽  
Khuram Shahzad Ahmad ◽  
Khalid Hussain Thebo ◽  
Faisal Rehman

Abstract Perovskite solar cells (PSC) comprising of organic–inorganic lead halide composition have been considered as the future candidates for substituting the costly crystalline silicon-based solar cells if the challenges of efficiency and stability are adequately addressed. PSCs have been known for the employment of costly materials serving as electron transport, hole transport layers and back contact electrode such as gold, silver, or aluminum, needing thermal deposition in high vacuum ambiance. Metallic electrodes have been observed as not robust and thus, prone to quick degradation hindering the overall photovoltaic functionality of PSC devices. Carbon-modified PSCs via utilization of carbon nanotubes (CNTs) have been a favorable choice in terms of longer stability and efficiency. Considering the overpowering potential of CNTs in transforming PSC device functionality, current review has been designed to elucidate the most recent progressions carried out in utilization of CNTs in PSCs. Furthermore, this review focussed a critical view on the utilization of CNTs-based PSCs for lower fill factors and other photovoltaic parameters in addition to the account of ways to solve these concerns. Photovoltaic community researchers need to develop cost effective methods for resolving the lower efficiencies and fill factors associated with use of CNTs and can further explore different novel materials to successfully modify CNTs for employment in PSCs.


2021 ◽  
Vol 2095 (1) ◽  
pp. 012041
Author(s):  
Jifeng Wang ◽  
Liangchao Guan ◽  
Jing Ge

Abstract Aminated Carbon Nanotubes (CNTs) and Carbon Fiber (CF) materials for anticollision intelligent control of Bridge Engineering were used to enhance the properties of Bismaleimide Resin (BMI) matrix resin and then tested the moist heat aging, salt spray aging and erosion resistance in this study. The resulted show that when the aging time was 168h, after wet heat and salt spray, the flexural strength and impact strength of three-phase composites with 1.5wt% MWNTs-NH2 content can reach maximum, and the wet heat aging bending performance is 45% better than that of non-added carbon nanotubes, the impact performance is 41% higher, the salt spray aging bending performance is 43% higher and the salt spray aging impact performance is 32% higher.


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