Dear Ms Es'haghi, I didn't understand your problem very well. But, there is several process of coating. You can use a sputtering, spinner, chemical deposition or some electrochemical process of deposition. I have some literature about these process. Is the nanocomposite resistant to temperature? Maybe, you could sublimate it in inert atmosfere on electrode surface. I would like to help you. New materials and sensors is subject that I have interest in learning, too. Best regards.
Dear Zarrin, I agree with Julio Cesar Bastos Fernandes. How ever if you simply coat on graphite electrode, you may use nafion as a binder or any other suitable binder.