A bifunctional electrocatalyst α-MnO2-LaNiO3/carbon nanotube composite for rechargeable zinc–air batteries

RSC Advances ◽  
2014 ◽  
Vol 4 (86) ◽  
pp. 46084-46092 ◽  
Author(s):  
Hongyun Ma ◽  
Baoguo Wang
Keyword(s):  
Carbon Nanotube ◽  
Bifunctional Electrocatalyst ◽  
Carbon Nanotube Composite ◽  
Zinc Air Batteries

α-MnO2-LaNiO3/CNTs as one integrated hybrid exhibits enhanced reactivity towards ORR and OER. Electrons are directly transferred by the CNT conductor.

A B4C nanowire and carbon nanotube composite as a novel bifunctional electrocatalyst for high energy lithium oxygen batteries

2015 ◽  
Vol 3 (36) ◽  
pp. 18395-18399 ◽  
Author(s):  
Wen-Bin Luo ◽  
Shu-Lei Chou ◽  
Jia-Zhao Wang ◽  
Hua-Kun Liu
Keyword(s):  
Carbon Nanotube ◽  
High Energy ◽  
Round Trip ◽  
Bifunctional Electrocatalyst ◽  
Carbon Nanotube Composite ◽  
Lithium Oxygen Batteries

B4C nanowire, a novel bifunctional electrocatalyst, is used as an electrocatalyst for Li–O2batteries, with favourable rechargeability, and high round-trip efficiency.

scholarly journals Supramolecular ionic polymer/carbon nanotube composite hydrogels with enhanced electromechanical performance

2020 ◽  
Vol 9 (1) ◽  
pp. 478-488 ◽  
Author(s):  
Yun-Fei Zhang ◽  
Fei-Peng Du ◽  
Ling Chen ◽  
Ka-Wai Yeung ◽  
Yuqing Dong ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Ion Mobility ◽  
Artificial Muscles ◽  
Ionic Polymer ◽  
Composite Hydrogels ◽  
The Matrix ◽  
Electromechanical Performance ◽  
Carbon Nanotube Composite ◽  
Robotic Devices

AbstractElectroactive hydrogels have received increasing attention due to the possibility of being used in biomimetics, such as for soft robotics and artificial muscles. However, the applications are hindered by the poor mechanical properties and slow response time. To address these issues, in this study, supramolecular ionic polymer–carbon nanotube (SIPC) composite hydrogels were fabricated via in situ free radical polymerization. The polymer matrix consisted of carbon nanotubes (CNTs), styrene sulfonic sodium (SSNa), β-cyclodextrin (β-CD)-grafted acrylamide, and ferrocene (Fc)-grafted acrylamide, with the incorporation of SSNa serving as the ionic source. On applying an external voltage, the ions accumulate on one side of the matrix, leading to localized swelling and bending of the structure. Therefore, a controllable and reversible actuation can be achieved by changing the applied voltage. The tensile strength of the SIPC was improved by over 300%, from 12 to 49 kPa, due to the reinforcement effect of the CNTs and the supramolecular host–guest interactions between the β-CD and Fc moieties. The inclusion of CNTs not only improved the tensile properties but also enhanced the ion mobility, which lead to a faster electromechanical response. The presented electro-responsive composite hydrogel shows a high potential for the development of robotic devices and soft smart components for sensing and actuating applications.

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