期刊
CHEMICAL PHYSICS LETTERS
卷 723, 期 -, 页码 22-27出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.cplett.2019.03.024
关键词
Nanoporous gold; Chemical de-alloying; Amorphous thin film; H2O2 detection
资金
- European Commission, Marie Curie Actions-Initial Training Networks (ITN) [607080 FP7-PEOPLE-2013-ITN]
- BINGO Project [2014_L2_146]
- Compagnia di San Paolo Italy
- Fundamental Research Funds for the Central Universities China [FRF-TP-18-009A1]
- National Key R&D Program of China [2017YFB0203703]
Au-based amorphous thin films prepared by magnetron sputtering were used to fabricate nanoporous gold by chemical de-alloying obtaining three dimensional bicontinuous ligament-nanopore structure. The surface topography and microstructure of the nanoporous thin films were monitored after varying the de-alloying conditions such as de-alloying time and electrolyte concentration. The as-prepared nanoporous gold electrodes were investigated for H(2)O(2 )sensing by CV curves and chronoamperometry techniques. The results demonstrated the nanoporous gold thin film exhibited high sensitivity towards H2O2 sensing under the applied potential of -0.45 V versus SCE, suggesting their use as H2O2 sensor.
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