Chitosan-based oxygen-doped activated carbon/graphene composite for flexible supercapacitors

Ren, Ruquan; Zhong, Yan; Ren, Xueyong; Fan, Yongming

doi:10.1039/d2ra03949d

Cited by 13 publications

(2 citation statements)

References 45 publications

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“…Karbon adalah material dengan manfaat dan keunggulan dari perspektif fisika, kimia, biologi dan disiplin ilmu lainnya. Kualitas karbon membuat perbedaan besar berdasarkan morfologi (Acosta Gentoiu et al, 2017), dan sifat optik (Liu, 2020), seperti carbon nanotube, fullerene (Clancy et al, 2018) graphene (Ren et al, 2022) dan nano partikel karbon (Yu et al, 2022) di sintesis dengan metode tertentu (Porto et al, 2020). CNPs adalah material karbon berbentuk morfologi titik-titik dengan sifat yang ringan dan dapat disintesis dari berbagai sumber bahan alami.…”

Section: Pendahuluanunclassified

Analisis Sifat Optik Nano Partikel Karbon Berbahan Daun Pandan Wangi (Pandanus Amaryllifolius) Dengan Metode Sintesis Hidrotermal

Nalwi,

Maddu,

Kurniati

et al. 2023

JoP

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Penelitian ini bertujuan untuk menentukan sifat optik, energi pergeseran Stokes, energi celah pita (Eg), gugus fungsi senyawa kimia dan ukuran karbon nano partikel atau Carbon Nanoparticles (CPNs). Sifat optik terdiri dari absorbansi dan intensitas flouresens yang dihasilkan oleh metode sintesis hidrotermal (150, 160, dan 180) ºC. Panjang gelombang absorbansi dan intensitas flouresens terdeteksi dengan metode spektroskopi UV-Vis (396.31, 399.61, dan 411.24) nm dan eksitasi laser 405 nm untuk emisi flouresens (524.18, 512.04, dan 510.92) nm. Energi pergeseran Stokes diperoleh berdasarkan perbedaan energi foton untuk ekesitasi (absorbansi) dan emisi (flouresen) dengan nilai (0.59, 0.55 dan 0.69) eV. Energi celah pita (Eg) ditentukan dengan mengekstrapolasi grafik ke rentang linier untuk memotong sumbu energi foton. Nilai Eg adalah (2.55, 3.43, dan 2.50) eV. Spektrum dan nilai koefisien ekstensi (k), konduktivitas optik (σopt) meningkat sedangkan indeks bias (n) menurun sering bertambahnya suhu hidrotermal. Spektrum FT-IR dan ukuran CNPs dilakukan dengan menggunakan sampel suhu 180 ºC. Gugus fungsi kimia yang terbentuk adalah C-H, C-N, N=C=S, O=C=O serta senyawa Nitrogen (NO2). Ukuran rata-rata nano partikel karbon adalah 11.09 nm berdasarkan intensitas (%), volume (%) dan nomor (%) partikel pada sampel CNPs.

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Section: Pendahuluanunclassified

Analisis Sifat Optik Nano Partikel Karbon Berbahan Daun Pandan Wangi (Pandanus Amaryllifolius) Dengan Metode Sintesis Hidrotermal

Nalwi,

Maddu,

Kurniati

et al. 2023

JoP

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“… Schematic representation of composite hydrogel synthesis by a hydrothermal reaction. Adapted from reference [ 32 ]. This article is an open-access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY-NC-ND 4.0) license.…”

Section: Figurementioning

confidence: 99%

Biopolymers-Derived Materials for Supercapacitors: Recent Trends, Challenges, and Future Prospects

et al. 2022

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Supercapacitors may be able to store more energy while maintaining fast charging times; however, they need low-cost and sophisticated electrode materials. Developing innovative and effective carbon-based electrode materials from naturally occurring chemical components is thus critical for supercapacitor development. In this context, biopolymer-derived porous carbon electrode materials for energy storage applications have gained considerable momentum due to their wide accessibility, high porosity, cost-effectiveness, low weight, biodegradability, and environmental friendliness. Moreover, the carbon structures derived from biopolymeric materials possess unique compositional, morphological, and electrochemical properties. This review aims to emphasize (i) the comprehensive concepts of biopolymers and supercapacitors to approach smart carbon-based materials for supercapacitors, (ii) synthesis strategies for biopolymer derived nanostructured carbons, (iii) recent advancements in biopolymer derived nanostructured carbons for supercapacitors, and (iv) challenges and future prospects from the viewpoint of green chemistry-based energy storage. This study is likely to be useful to the scientific community interested in the design of low-cost, efficient, and green electrode materials for supercapacitors as well as various types of electrocatalysis for energy production.

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Synthesis and Characterization of Chitosan Functionalized Graphene-Oxide Based Binary Metal Composite for Energy Storage Application

Gaytri,

Kumar,

Khanra

2024

Springer Proceedings in Physics

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Chitosan-based oxygen-doped activated carbon/graphene composite for flexible supercapacitors

Abstract: An activated carbon/graphene hydrogel for supercapacitors was prepared by using chitosan-based activated carbon and graphene oxide via a hydrothermal process.

Cited by 13 publications

References 45 publications

Analisis Sifat Optik Nano Partikel Karbon Berbahan Daun Pandan Wangi (Pandanus Amaryllifolius) Dengan Metode Sintesis Hidrotermal

Analisis Sifat Optik Nano Partikel Karbon Berbahan Daun Pandan Wangi (Pandanus Amaryllifolius) Dengan Metode Sintesis Hidrotermal

Biopolymers-Derived Materials for Supercapacitors: Recent Trends, Challenges, and Future Prospects

Synthesis and Characterization of Chitosan Functionalized Graphene-Oxide Based Binary Metal Composite for Energy Storage Application

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