Figure 2.

A gas-sensing device scheme and SEM and TEM images of sensors. (a) A schematic of the random adsorption of gas molecules onto the CNT-Pd sensor. (b) An FE-SEM image of the device prepared by dispersing CNTs with Pd NPs. (c) An HR-TEM image of CNT bundles with Pd NPs. (By Choi et al.)

Choi et al. Nanoscale Research Letters 2011 6:605   doi:10.1186/1556-276X-6-605
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