Preparation Of Graphene-based Composite Micromotor And Study On Its Motion Control Mechanism

Micro-nano motor is a device that can realize movement in the field of nanometer or micrometer.In the field of micro-nano,it is not like the engine in life,it is powered by adding fuel,and preparing a micro-nano motor that can realize self-driving is one of the key challenges facing the current micro-nano technology field.The micro-nano motor has the characteristics of self-driving and controllable movement direction.It has wide application prospects in the fields of material transportation,biomedicine,environmental governance,etc.The successful preparation of the micro-nano motor that can realize self-driving has aroused the research interest of scientific researchers.With the efforts of scientific researchers,various micro-nano motors have been successfully designed and prepared.These motors can be divided into linear motors,tubular motors,Janus motors,and indefinite shapes according to their shapes;they can be divided into catalytic drives,magnetic drives,thermal drives,and optical drives.At present,the research on micro-nano motors mainly focuses on tubular motors and Janus motors,and the driving method is mainly catalytic driving.The research content of the micro-nano motor in this article mainly focuses on the following aspects:1.Introduce the development of micro-nano motor,the preparation method of Janus motor,the preparation method of tubular motor,and the application field of micro-nano motor.2.A simple method of preparing Janus metal-drop motor by vibrating mixing is proposed,and the influence factors such as the concentration of aluminum metal particles and surfactant are studied.At the same time,by adding metallic iron particles,the movement direction of the Janus metal-drop motor is controlled by the magnetic field.3.Successfully prepared copper-zinc tubular motor using template-assisted auxiliary electrodeposition.Inquired into the preparation process of copper-zinc tubular motor and its influencing factors.4.Graphene material and platinum metal are combined by template-assisted electrodeposition to prepare a graphene-platinum tubular micro-nano motor.The graphene material has better adsorption performance and mechanical performance,and it is combined with the tubular micro-nano motor to achieve a good expansion application of the micro-nano motor.The tubular motor moves in solution.Graphene is used as the outer layer material to achieve effective adsorption during the movement.At the same time,graphene as the outer layer material has a protective and supporting effect on the inner wall of the micro-nano motor.The graphene-platinum tubular motors were studied accordingly.