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Scanning electron microphotographs for PEUN1 to PEUN7 films.  

Scanning electron microphotographs for PEUN1 to PEUN7 films.  

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Abstract The Co3O4 films were prepared by using two steps method. Initially, the films were deposited on thoroughly cleaned copper substrates by using pulsed DC electrochemical deposition method from a solution containing Co(NO3)2:6H2O and H3BO3. The films were deposited at different molar concentrations: 0.1, 0.2, 0.3, 0.4, 0.5, 0.6 and 0.7 M of C...

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