Figure 4.

Plots of real-time electrical resistance responses and their properties for CNT-Pd. Plots of the real-time electrical resistance responses and their properties (response time and sensitivity) for the CNT-Pd after exposure to (a, b) 35 ppm NH₃ within a concentration range of 7 to 35 ppm and (c, d) 80 ppm CO within a concentration range of 20 to 80 ppm. (By Choi et al.)