Research Article

Catalysis of Methanol-Air Mixture Using Platinum Nanoparticles for Microscale Combustion

Figure 5

(a) and (b) are SEM images of Pt particles deposited on the substrate walls prior to catalysis (precatalysis). (c) Postcatalysis SEM image of Pt nanoparticles with moderate sintering with peak temperatures of 500°C after two cycles (1 hr cycle time). (d) Coalesced spheres of metallic Pt after experiencing peak temperatures of 1120°C over 25 cycles.
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(a)
460790.fig.005b
(b)
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(c)
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(d)