Synthesis of high quality gold nanorod using m-phenylenediamine as the reducing agent

Jiang, Suju; Chen, Feifei; Wen, Xiqiong; Huang, Chonghui; Xuan, Yifeng; Yang, Hua; Wu, Zihua; Huang, Guobao; Meng, Lili

doi:10.1016/j.inoche.2023.110426

Cited by 5 publications

(3 citation statements)

References 19 publications

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“…The color of the Au-NW mesh film is brown (Fig. 1 b) because of the characteristic absorption peak of surface plasmon resonance 23 – 25 . The SEM image of the Au-NW mesh film proved little impurities such as Au nanoparticle and nanoplatelet.…”

Section: Resultsmentioning

confidence: 99%

Gold nanowire mesh electrode for electromechanical device

Ikeda

2023

Sci Rep

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Ionic polymer-metal composite (IPMC) actuators were prepared with Nafion film as the ionic polymer and gold nanowire (Au-NW) mesh film as the metal electrodes by hot-pressing, which shortened preparation time within 1 h. As a reference, IPMC actuator consisting of Nafion film and gold foil (Au-foil) was also prepared. Au-NW mesh film can be an electrode with thinner (about 150 nm) and lower surface resistivity (about 0.5 Ω sq−1) than the conventional electrode prepared by electroless plating. Larger contact area of the Au-NW mesh electrode than the Au-foil electrode resulted in better actuation performance (60% larger peak-to-peak displacement in actuation). It was confirmed that the transformation behavior of Au-NWs differed depending on the external stimuli condition. Namely Au-NWs transformed to Au nanoparticles in the case of the heat stimulus only. Meanwhile, Au-NWs transformed to plates in the case of the heat and pressure stimuli. While higher temperature improved the adhesion of Au-NW mesh electrode to the Nafion surface, it induced the transformation of nanowire to plates. The IPMC actuator that the Au-NW mesh electrodes were hot-pressed at 90 ºC exhibited the highest capacitance and the largest peak-to-peak displacement in actuation. This research expanded the application field of gold nanowires to the electromechanical devices.

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Section: Resultsmentioning

confidence: 99%

Gold nanowire mesh electrode for electromechanical device

Ikeda

2023

Sci Rep

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“…1b). [23][24][25] The color of the lm was sensitive to the amounts of impurities such as Au nanoparticle and nanoplatelet.…”

Section: Resultsmentioning

confidence: 99%

Gold Nanowire Mesh Electrode for Electromechanical Device

Ikeda

2023

Preprint

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Ionic polymer-metal composite (IPMC) actuators were prepared with Nafion film as the ionic polymer and gold nanowire (Au-NW) film as the metal electrodes by hot-pressing, which shorten manufacturing time within one hour. As a reference, IPMC actuator consisting of Nafion film and gold foil (Au-foil) was also prepared. Au-NW film afforded the mesh electrode with thinner and lower surface resistivity than the conventional electrode prepared by electroless plating. Larger contact area of the Au-NW mesh electrode than the Au-foil electrode resulted in better actuation performance. It was confirmed that the transformation behavior of Au-NWs differs depending on the external stimuli condition. Namely Au-NWs transformed to Au nanoparticles in the case of the heat stimulus only. Meanwhile, Au-NWs transformed to plates in the case of the heat and pressure stimuli. While higher temperature improved the adhesion of Au-NW mesh electrode to the Nafion surface, it induced the transformation of nanowire to plates. Therefore, the best preparation temperature was 90 ºC. This research expanded the application field of gold nanowires to the electromechanical devices.

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“…Based on the recognition of weak reducing atmosphere on favouring the AuNR growth, reagents with reducibility that is weaker than AA were considered as the reducing agent and many related methods have been reported. [29][30][31] Some kind of aromatic compounds, which show a weak reducibility, were first proposed to be successful in promoting the synthesis of AuNRs. 32 For instance, in 2013, Zubarev et al reported the improved synthesis of AuNRs using hydroquinone as the reducing agent.…”

Section: Introductionmentioning

confidence: 99%