Spiky Nickel Electrodes for Electrochemical Oxygen Evolution Catalysis by Femtosecond Laser Structuring

Table 1

Processing parameters for the laser-structured samples Ni CLPs 0° and Ni CLPs 45°.

Sample name	Laser pulse energy	Laser peak fluence	Sample movement velocity	Hatch line-to-line distance	Hatch repetitions
Ni CLPs 0°	175 μJ	38.5 J cm^−2	, = 6 mm s^−1	, = 6 μm	8
Ni CLPs 45°	400 μJ	62.3 J cm^−2	= 6 mm s^−1	, , = 6 μm	8
		(on the tilted surface)	= = 3 mm s^−1