Investigation on Laser Induced Deposition of Cu-Based Materials at [BMIm]BF4/Pt Electrode Interface

Authors

Min-min XU, College of Chemistry，Chemical Engineering and Materials Science，Soochow University，Suzhou 215123, Jiangsu, China;
Jin-hua Mei, College of Chemistry，Chemical Engineering and Materials Science，Soochow University，Suzhou 215123, Jiangsu, China;
Jian-lin YAO, College of Chemistry，Chemical Engineering and Materials Science，Soochow University，Suzhou 215123, Jiangsu, China;Follow
Ren-ao GU, College of Chemistry，Chemical Engineering and Materials Science，Soochow University，Suzhou 215123, Jiangsu, China;

Corresponding Author

Jian-lin YAO(jlyao@suda.edu.cn)

Abstract

By controlling the negative potential, Cu-based materials were deposited at the [BMIm]BF₄/Pt electrode interface under the laser irradiation. The effects of laser power and irradiation time on the yield of deposition products were studied by using different laser powers and different irradiation time. The product yield could be directly determined by the size of deposition point through the observation from the optical microscope. Further mechanism study combined with the formula deduced that the thermal effect of the laser could make the electrode surface temperature rise 110 degrees, which can promote the occurrence of electrodeposition. By SEM characterization, the deposition point was formed from nanoparticle aggregation with the diameter of 50 nm. The EDS and Raman spectra showed that the product was a mixture of Cu and Cu₂O. The sedimentary formation and growth process could be monitored by the changes in the intensity of the SERS signals from 1 mM of mercaptobenzoic acid (MBA). In addition, it was concluded based on the SERS experiments that no deposition products were formed without the laser irradiation.

Graphical Abstract

Keywords

ionic liquids, laser, induced electrodeposition, Copper, surface enhanced Raman spectroscopy

DOI Link

https://doi.org/10.13208/j.electrochem.160567

Publication Date

2016-12-28

Online Available Date

2016-11-24

Revised Date

2016-10-25

Received Date

2016-07-09

Recommended Citation

Min-min XU, Jin-hua Mei, Jian-lin YAO, Ren-ao GU. Investigation on Laser Induced Deposition of Cu-Based Materials at [BMIm]BF4/Pt Electrode Interface[J]. Journal of Electrochemistry, 2016 , 22(6): 577-581.
DOI: 10.13208/j.electrochem.160567
Available at: https://jelectrochem.xmu.edu.cn/journal/vol22/iss6/5