Non-vacuum fabrication of conductive, mechanochemically stable, flexible Ni-Cu alloy electrodes with customizable composition ratios via laser digital patterning
- Authors
- Truong, Phuoc Loc; Lee, Daeho
- Issue Date
- May-2024
- Publisher
- ELSEVIER SCIENCE SA
- Keywords
- Ni-Cu alloy; Laser digital patterning; Customizable composition ratio; High oxidation resistance; Flexible heater
- Citation
- CHEMICAL ENGINEERING JOURNAL, v.487
- Journal Title
- CHEMICAL ENGINEERING JOURNAL
- Volume
- 487
- URI
- https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/91628
- DOI
- 10.1016/j.cej.2024.150565
- ISSN
- 1385-8947
1873-3212
- Abstract
- Nickel-Copper (Ni-Cu) alloys exhibit considerable potential for various applications, leveraging the synergistic advantages of both Ni and Cu elements. This study introduces a rapid, effective method for creating Ni-Cu alloy electrodes via the laser digital patterning process. Diverse shapes of Ni-Cu alloy electrodes were generated on both rigid and flexible substrates with customizable composition ratios by modulating the ratios of CuOx to NiOx nanoparticle inks. The electrodes exhibited 2-4 times lower resistivities than the Ni electrode, along with superior thermal oxidation stability (up to 400 degrees C), excellent corrosion resistance (over 3 h in tap water and seawater), and remarkable long-term stability (over nine months in ambient air). Moreover, the transparent flexible Ni-Cu heater, with a low sheet resistance (21.4 Omega/sq) and high transmittance (85 %) demonstrated excellent mechanical bending resistance, and maintained a uniform temperature distribution at 235 degrees C for 2 h.
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