scholarly journals INVESTIGATION OF THE MECHANICAL PROPERTIES OF TRANSITION METAL CARBIDES AND BORIDES. Final Report.

1967 ◽  
Author(s):  
2021 ◽  
Author(s):  
Yue Zhu ◽  
Qingyu Peng ◽  
Haowen Zheng ◽  
Fuhua Xue ◽  
Pengyang Li ◽  
...  

With the development of multifunction and miniaturization in modern electronics, polymeric films with strong mechanical performance and high thermal conductivity are urgently needed. Two-dimensional transition metal carbides and nitrides (MXenes)...


2019 ◽  
Vol 166 ◽  
pp. 271-280 ◽  
Author(s):  
Tyler J. Harrington ◽  
Joshua Gild ◽  
Pranab Sarker ◽  
Cormac Toher ◽  
Christina M. Rost ◽  
...  

2019 ◽  
Vol 7 (18) ◽  
pp. 10843-10857 ◽  
Author(s):  
Massoud Malaki ◽  
Aziz Maleki ◽  
Rajender S. Varma

MXenes, 2D transition metal carbides/nitrides, with superior electrical, optical, and mechanical properties is a recent discovery and have already been deployed in a variety of fields such as batteries, composites, sensors and medical devices.


2017 ◽  
Vol 114 (52) ◽  
pp. E11082-E11091 ◽  
Author(s):  
Hang Zhang ◽  
Zhongheng Fu ◽  
Ruifeng Zhang ◽  
Qianfan Zhang ◽  
Hongzhen Tian ◽  
...  

Efficient flexible energy storage systems have received tremendous attention due to their enormous potential applications in self-powering portable electronic devices, including roll-up displays, electronic paper, and “smart” garments outfitted with piezoelectric patches to harvest energy from body movement. Unfortunately, the further development of these technologies faces great challenges due to a lack of ideal electrode materials with the right electrochemical behavior and mechanical properties. MXenes, which exhibit outstanding mechanical properties, hydrophilic surfaces, and high conductivities, have been identified as promising electrode material candidates. In this work, taking 2D transition metal carbides (TMCs) as representatives, we systematically explored several influencing factors, including transition metal species, layer thickness, functional group, and strain on their mechanical properties (e.g., stiffness, flexibility, and strength) and their electrochemical properties (e.g., ionic mobility, equilibrium voltage, and theoretical capacity). Considering potential charge-transfer polarization, we employed a charged electrode model to simulate ionic mobility and found that ionic mobility has a unique dependence on the surface atomic configuration influenced by bond length, valence electron number, functional groups, and strain. Under multiaxial loadings, electrical conductivity, high ionic mobility, low equilibrium voltage with good stability, excellent flexibility, and high theoretical capacity indicate that the bare 2D TMCs have potential to be ideal flexible anode materials, whereas the surface functionalization degrades the transport mobility and increases the equilibrium voltage due to bonding between the nonmetals and Li. These results provide valuable insights for experimental explorations of flexible anode candidates based on 2D TMCs.


2019 ◽  
Vol 66 (11) ◽  
pp. 530-535
Author(s):  
Takashi SEKINE ◽  
Akihiro NINO ◽  
Yasushi SUGAWARA ◽  
Shigeaki SUGIYAMA ◽  
Hitoshi TAIMATSU

2019 ◽  
Vol 21 (3) ◽  
pp. 1606-1613 ◽  
Author(s):  
Bingwen Zhang ◽  
Weiyi Zhang ◽  
Qiangqiang Meng ◽  
Lele Fan ◽  
Qinfang Zhang

In this paper, vanadium carbides VC2 and bi-transition-metal carbides V1/2Mn1/2C2 are predicted to be stable metallic nanosheets showing promising mechanical properties.


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