Table 1.

Experimental conditions and results

Experiment number	CO2 flow rate (kg/h)	Nozzle position	Morphology	Particle size (nm)	δa
1	3	Horizontal	Rod-like	157±48	16.93
2	3	Convex	Globular	210±107	37.13
3	4.5	Horizontal	Filamentous	116±51	18.93
4	4.5	Convex	Rod-like	170±41	13.66
5	6	Horizontal	Filamentous	42±28	9.48
6	6	Convex	Filamentous	81±39	12.12

Note:

^aStandard deviation.