Recently, the research team of Chen Wei, a researcher at the Institute of Nanotechnology, Chinese Academy of Sciences, prepared graphene-encapsulated silver nanoparticle electrodes, and on this basis, successfully designed a new electrochemically stable nano-composite ion polymer electric drive device. Related research results have recently been published online in the journal Advanced Materials.
It is understood that the metal electrode composite ion polymer is a new type of intelligent material, which can be widely used in the fields of bionic robots, micro-medical devices, micro-fluidics, human-computer interaction and so on.
At present, this smart material is mainly compounded by a cation exchange membrane and electroless plating methods of precious metals such as platinum. The precious metal electrodes used are expensive and the raw materials are rare. Therefore, the search for cheap and large-scale materials that can replace precious metal electrodes has become a hot topic for scholars at home and abroad.
Chen Wei's research group found in the previous research that graphene, as a stable electrode material for electrochemical devices, has obvious advantages in the design of bionic smart materials. In order to utilize the high conductivity of silver while avoiding electrochemical erosion, the researchers creatively designed and prepared two-dimensional graphene-encapsulated silver nanoparticle electrode materials.
According to reports, this method has broad application prospects and value in the development of heterogeneous nanostructured electrochemical drive devices and sensors.
This work was supported by the National Natural Science Foundation of China, the Ministry of Science and Technology, and the Jiangsu Natural Science Foundation.
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