Could we cool the ocean by reflecting away sunlight to influence hurricanes?
Water has a large thermal capacity. 


  which is why the temperature change between seasons is gradual rather than sudden, especially near the oceans.


For water to lose heat time is required. By changing the albedo of the ocean just prior to a hurricane/cyclone/typhoon passing over a section of water will not give the water enough time to cool down to have any significant effect.

If it were possible to change the temperature of water to minimize the strength of hurricanes/typhoons/cyclones, large sections of ocean would need to have their albedos changed for a long period of time.