Figure 1.

The process scheme for preparing CNT fibrous CE by spraying method. Step 1, placing Ti wires on substrate and raising the temperature of substrate to 400°C; step 2, spraying CNT solution for 40 s first, and then spraying FTO precursor on the samples for 3 min. This step was repeated three times, and the temperature was kept at 400°C; step 3, the temperature was cooled down to 300°C, and CNT suspension is continued to be sprayed.

Huang et al. Nanoscale Research Letters 2012 7:222   doi:10.1186/1556-276X-7-222
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