Nanostructured carbon composites from cigarette filter wastes and graphene oxide suitable as electrodes for 3.4 V supercapacitors

This work reports the successful preparation of nanoporous iron oxide/carbon composites through the in-situ growth of Prussian blue (PB) nanoparticles on the surface of graphene oxide (GO) nanosheets. The applied thermal treatment allows the conversion of PB nanoparticles into iron oxide (Fe2O3) nanoparticles. The resulting iron oxide/carbon composite exhibits higher specific capacitance at all scan rates than pure GO and Fe2O3 electrodes due to the synergistic contribution of electric double-layer capacitance from GO and pseudocapacitance from Fe2O3. Notably, even at a high current density of 20 A g−1, the iron oxide/carbon composite still shows a high capacitance retention of 51%, indicating that the hybrid structure provides a highly accessible path for diffusion of electrolyte ions.

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Removal of Metals from Water Using Platinum Nanostructured Carbon Composites

Analytical Letters ◽

10.1080/00032719.2017.1421959 ◽

2018 ◽

Vol 52 (1) ◽

pp. 201-212

Author(s):

Cezara Voica ◽

Ildiko Lung ◽

Mihaela Diana Lazar ◽

Dana A. Magdas

Keyword(s):

Carbon Composites ◽

Nanostructured Carbon

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Preparation and Electroactivity of Pt Catalysts on Unzipped Multi-Walled Carbon Nanotube and Graphene Oxide

Journal of Nanoscience and Nanotechnology ◽

10.1166/jnn.2020.17834 ◽

2020 ◽

Vol 20 (8) ◽

pp. 4998-5001

Author(s):

JinWon Lee ◽

Sungwook Chung ◽

Seok Kim

Keyword(s):

Graphene Oxide ◽

Carbon Nanotube ◽

3D Structure ◽

Carbon Composite ◽

Carbon Composites ◽

High Catalytic Activity ◽

Carbon Supports ◽

Multi Walled Carbon Nanotube ◽

Ft Ir ◽

Enhanced Surface

We synthesize the Pt-carbon composite which is composed of unzipped multi-walled carbon nanotube (UMWCNT) and graphene oxide (GO). Graphite and multi-walled carbon nanotube (MWCNT) are oxidized by same method that modified Hummer’s method for making GO and UMWCNT. 3D structure could be prepared by polyol process which contains simultaneously reduction GO and UMWCNT. The electrochemical and morphological property of Pt-carbon composites was investigated by Fourier Transform Infrared spectroscopy (FT-IR), Field Emission Scanning Electron Microscopy (FE-SEM), and Cyclic Voltammetry (CV). These results show that Pt-rGO/UMWCNT (8:2) hybrids exhibited high catalytic activity due to the enhanced surface area of carbon supports.

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Thin sandwich graphene oxide@N-doped carbon composites for high-performance supercapacitors

RSC Advances ◽

10.1039/c7ra00909g ◽

2017 ◽

Vol 7 (36) ◽

pp. 22071-22078 ◽

Cited By ~ 3

Author(s):

Cejun Hu ◽

Guoxin Zhang ◽

Haoyuan Li ◽

Cong Zhang ◽

Yingna Chang ◽

...

Keyword(s):

Graphene Oxide ◽

High Performance ◽

Carbon Composites ◽

Ultrathin Layer

An ultrathin layer of ca. ∼1.9 nm N-doped carbon was deposited on GO via dehalogenation of PVDC.

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A comparative study of Ni–Mn layered double hydroxide/carbon composites with different morphologies for supercapacitors

Physical Chemistry Chemical Physics ◽

10.1039/c6cp05119g ◽

2016 ◽

Vol 18 (43) ◽

pp. 30068-30078 ◽

Cited By ~ 33

Author(s):

M. Li ◽

F. Liu ◽

X. B. Zhang ◽

J. P. Cheng

Keyword(s):

Carbon Nanotubes ◽

Graphene Oxide ◽

Comparative Study ◽

Layered Double Hydroxide ◽

Electrode Materials ◽

Carbon Materials ◽

Carbon Composites ◽

Reduced Graphene ◽

Double Hydroxide

A variety of carbon materials varying from 0D to 2D, i.e. 0D nanoparticles, 1D carbon nanotubes (CNTs) and 2D reduced graphene oxide (rGO) are selected to in situ combine with Ni–Mn layered double hydroxide (LDH) to prepare electrode materials for supercapacitors.

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APPLICATIONS OF CHITOSAN–GRAPHENE OXIDE NANOCOMPOSITES IN MEDICAL SCIENCE: A REVIEW

Progress on Chemistry and application of Chitin and its Derivatives ◽

10.15259/pcacd.23.001 ◽

2018 ◽

Vol XXIII ◽

pp. 5-24

Author(s):

Katarzyna Pieklarz ◽

Michał Tylman ◽

Zofia Modrzejewska

Keyword(s):

Graphene Oxide ◽

Biomedical Applications ◽

Carbon Materials ◽

Medical Science ◽

Biological Macromolecules ◽

Nanostructured Carbon ◽

Accelerate Wound Healing ◽

Wide Range ◽

The Subject ◽

Dressing Materials

Combinations of biopolymers with nanostructured carbon materials have been the subject of interest of many scientists in recent years. Particularly significant are nanocomposites made of chitosan, which is a linear aminopolysaccharide obtained in the process of deacetylation of chitin, and graphene oxide (GO). These systems, due to the atypical properties of both components such as non-toxicity, biocompatibility with human tissues and organs as well as bacteriostaticity, are characterised by a wide range of biomedical applications. They may be used in emergency medicine as dressing materials which accelerate wound healing, as well as carriers of drugs/genes and biological macromolecules, for example proteins, peptides and nucleic acids. In addition, CS-GO systems can potentially be used in regenerative medicine as scaffolds for cell culture. For this reason, the current publication presents the possibilities of the application of chitosan–graphene oxide nanocomposites in medicine considering the characteristics of the system components.

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