Preparation of Palladium/Silver-Coated Polyimide Nanotubes: Flexible, Electrically Conductive Fibers

Kong, Lushi; Rui, Guanchun; Wang, Guangyu; Huang, Rundong; Li, Ran; Yu, Jiajie; Qi, Shengli; Wu, Dezhen

doi:10.3390/ma10111263

Cited by 5 publications

(2 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For the pristine PI film, it can be clearly seen that there are two obvious peaks at 1775 and 1718 cm –1 , which are related to the CO symmetric and antisymmetric vibration of the imide ring, respectively. The peak at 1370 cm –1 related to the axial expansion of C–N on the imide ring ,, can be found as well. In contrast, these peaks disappear after the ion-exchange process for the PI film with Ag + ion loadings.…”

Section: Resultsmentioning

confidence: 75%

Surface Engineering on Polyimide–Silver Films in Low-Cost, Flexible Humidity Sensors

Luo

Liu

Wang

et al. 2022

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

In this work, surface engineering is applied to polyimide (PI) films to fabricate low-cost Ag/PI wireless humidity sensors with a resonant frequency of 2.45 GHz. The sensors were obtained by in situ metallization technique coupled with inkjet printing, where PI plays triple roles as a flexible substrate, ion-exchange surface, and sensing material to moisture. Moreover, the humidity sensitivity can be enhanced by the improvement of hydrophilicity via loading with different ions on the PI surface, which has been demonstrated by Fourier transform infrared (FTIR), X-ray photoelectron spectroscopy (XPS), and contact angle measurements. The wireless humidity sensor loaded with K+ ions has the maximum sensitivity of 97.7 kHz/% RH at a low relative humidity range of 20–65% and 359.7 kHz/% RH at a high relative humidity of 65–90%, respectively. Accordingly, a sensing mechanism of the fabricated humidity sensor has been discussed in detail. On the other hand, the characteristics of the humidity sensor such as response and recovery speed and stability are analyzed. The mechanical performance tests show that the humidity sensor displays excellent flexibility and good mechanical stability. A strong adhesion between the Ag antenna and PI substrate can be found as well. The passive wireless humidity sensor described in this work has the advantages of having a simple structure, low cost, high sensitivity, long-term stability, and good mechanical properties, which has potential applications in automated industry and healthcare with real-time humidity monitoring.

show abstract

Section: Resultsmentioning

confidence: 75%

Surface Engineering on Polyimide–Silver Films in Low-Cost, Flexible Humidity Sensors

Luo

Liu

Wang

et al. 2022

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

show abstract

“…Besides the direct metallurgical alloying, Ag-Pd alloys can also be prepared through electroless plating [ 10 ], e.g., against biofouling [ 11 ], or through DC sputtering, e.g., as a lubricant in high-temperature applications [ 12 ]. Thin films of Ag-Pd can be used to improve the SERS activity [ 13 ] or to prepare flexible electrically conductive fibers [ 14 ].…”

Section: Introductionmentioning

confidence: 99%

Revisiting Electronic Topological Transitions in the Silver–Palladium (AgcPd1−c) Solid Solution: An Experimental and Theoretical Investigation

Reiter,

Marmodoro,

Mardare

et al. 2024

Materials

View full text Add to dashboard Cite

Multiple thick film samples of the AgcPd1−c solid solution were prepared using physical vapour deposition over a borosilicate glass substrate. This synthesis technique allows continuous variation in stoichiometry, while the distribution of silver or palladium atoms retains the arrangement into an on-average periodic lattice with smoothly varying unit cell parameters. The alloy concentration and geometry were measured over a set of sample points, respectively, via energy-dispersive X-ray spectroscopy and via X-ray diffraction. These results are compared with ab initio total energy and electronic structure calculations based on density functional theory, and using the coherent potential approximation for an effective medium description of disorder. The theoretically acquired lattice parameters appear in qualitative agreement with the measured trends. The numerical study of the Fermi surface also shows a variation in its topological features, which follow the change in silver concentration. These were related to the electrical resistivity of the AgcPd1−c alloy. The theoretically obtained variation exhibits a significant correlation with nonlinear changes in the resistivity as a function of composition. This combined experimental and theoretical study suggests the possibility of using resistivity measurements along concentration gradients as a way to gain some microscopic insight into the electronic structure of an alloy.

show abstract

A novel conductive composite gel based on polyvinyl alcohol/polymerizable deep eutectic solvent with superior tear resistance, tensile properties and recyclability

Gao

Wang

Feng

et al. 2023

European Polymer Journal

View full text Add to dashboard Cite

Preparation of Palladium/Silver-Coated Polyimide Nanotubes: Flexible, Electrically Conductive Fibers

Cited by 5 publications

References 26 publications

Surface Engineering on Polyimide–Silver Films in Low-Cost, Flexible Humidity Sensors

Surface Engineering on Polyimide–Silver Films in Low-Cost, Flexible Humidity Sensors

Revisiting Electronic Topological Transitions in the Silver–Palladium (AgcPd1−c) Solid Solution: An Experimental and Theoretical Investigation

A novel conductive composite gel based on polyvinyl alcohol/polymerizable deep eutectic solvent with superior tear resistance, tensile properties and recyclability

Contact Info

Product

Resources

About