One kind of spongy graphene-based gas sensor stretchable Preparation of
2015
The present invention relates to a sponge-like graphene-based method for preparing a stretchable gas sensor, is first prepared a sponge-like material on the foamed nickel graphene by chemical vapor deposition process, the prepared graphene / nickel foam was immersed in the etching solution , the reaction is slow, so that most of the nickel is replaced with a chemical off the nickel particles into a small nickel metal, and the sponge-like graphene / nickel particles are mixed structural formula fishing method employed Along remove the etching solution from , washing, drying, pre-stretching the elastic substrate gradually returns to its original length or area, both ends of the graphene preparing an electrode / hybrid structure of the nickel particles, a gas sensor is obtained stretchable. The gas sensor of high electrical conductivity, good gas sensing properties, low cost and controllable growth of a large area can be realized.
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