Abstract
Catalyst films for methanol combustion, which could be used as micro heat source to provide energy for micro–nano-scale devices, were fabricated with an inkjet printing method. The inkjet printing was used to prepare catalyst films by optimizing inkjet-printed parameters (voltage: 65–70V; pulse width: 20–30μs; ink viscosity: near 1mPas) and depositing uniform morphologies (substrate temperature: 80°C; water/ethylene glycol (W/EG): 95:5, v/v). The performances of micro catalytic heat source were evaluated by an infrared thermography (IR) camera. The temperature response reached 95% of the steady state temperature in about 150s, the temperature difference reached 100°C on the catalyst surface, and the temperature of catalytic combustion was controlled by adjusting the methanol/air (10% v/v) flow rate.
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