Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7144898 | Sensors and Actuators B: Chemical | 2016 | 7 Pages |
Abstract
Ultralight and macroporous three-dimensional reduced graphene oxide (rGO) foams are prepared by lyophilization (freeze-drying) technique to avoid a conventional template method. This method allows tailoring the porosity of the foams by varying the weight percentages of graphene oxide dispersions in water. Three different rGO foams of 0.2, 0.5 and 1.0Â wt% are used for NO2 sensing. Sensing response from the tailored structure of rGO is found to be directly related to the density. A maximum of 20% sensing response is observed for a higher porosity of the structure, better than the known results so far on graphene foams in the literature.
Related Topics
Physical Sciences and Engineering
Chemistry
Analytical Chemistry
Authors
Swetha Jayanthi, Anwesha Mukherjee, Kaushik Chatterjee, A.K. Sood, Abha Misra,