Modulating three-dimensional porous carbon from paper mulberry juice by a hydrothermal process for a supercapacitor with excellent performance

Xia, Guoyan; Liu, Zhanglin; He, Jinsong; Huang, Mei; Zhao, Li; Zou, Jianmei; Lei, Yongjia; Yang, Qiulin; Liu, Yan; Tian, Dong; Shen, Fei

doi:10.1016/j.renene.2024.120478

Cited by 4 publications

(2 citation statements)

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“…According to the Raman spectrum of the Au NPs/PC nanocomposites (Figure 3b), there are two obvious peaks: one near 1350 cm −1 corresponding to the D band which is attributed to disorder or defects in the carbon atoms band and 1600 cm −1 corresponding to the G band which is attributed to the sp 2 in-plane vibration of carbon atoms [25][26][27], respectively. The intensity ratio of these peaks (I D /I G ) determines the degree of graphitization in carbon materials [28][29][30]. As shown in Figure 3c, the I D /I G values of the Au NPs/PC nanocomposites (0.964-0.981) by the reduced method with different Au 3+ concentrations were obtained in this work, which are significantly higher than the porous carbon (0.85).…”

Section: Characterization Results and Analysismentioning

confidence: 62%

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Enhanced Optical Limiting of Gold Nanoparticles/Porous Carbon Nanocomposites

Gao,

Zhao,

Yang

et al. 2024

Materials

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With the wide application of laser weapons, the requirements of laser protection technology are becoming more and more strict. Therefore, it is important to find ideal optical limiting (OL) materials to protect human eyes and detectors. In this work, the nonlinear optical responses of gold nanoparticles/porous carbon (Au NPs/PC) nanocomposites prepared by the reduction method were studied using the nanosecond Z-scan technique. Compared with porous carbon, the Au NPs/PC nanocomposites show a lower damage threshold, a bigger optical limiting index and a wider absorption spectrum. The interaction between gold nanoparticles and porous carbon enhances the nonlinear scattering effect of suspended bubbles. These results indicate that Au NPs composites have potential applications in the protection of human eyes and detectors.

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Section: Characterization Results and Analysismentioning

confidence: 62%

“…) determines the degree of graphitization in carbon materials [28][29][30]. As shown in Figure 3c, the values of the Au NPs/PC nanocomposites (0.964-0.981) by the reduced method with different Au 3+ concentrations were obtained in this work, which are significantly higher than the porous carbon (0.85).…”

Section: Characterization Results and Analysismentioning

confidence: 63%