One-step synthesis of Pt-decorated graphene–carbon nanotubes for the electrochemical sensing of dopamine, uric acid and ascorbic acid

2015 ◽  
Vol 7 (2) ◽  
pp. 779-786 ◽  
Author(s):  
S. Ramakrishnan ◽  
K. R. Pradeep ◽  
A. Raghul ◽  
R. Senthilkumar ◽  
Murali Rangarajan ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Ascorbic Acid ◽  
Uric Acid ◽  
Vapor Deposition ◽  
Chemical Vapor ◽  
Deposition Process ◽  
Single Step ◽  
Electrochemical Sensing ◽  
Platinum Nanoparticle ◽  
One Step

Platinum nanoparticle-decorated graphene and carbon nanotube (Pt-Gr-CNT) nanocomposites synthesized by a single step chemical vapor deposition process, serve as a promising platform for the simultaneous electrochemical sensing of dopamine, uric acid and ascorbic acid.

Single-step synthesis of carbon nanotubes/iron/iron oxide composite films through inert-ambient CVD using ferric acetylacetonate as a precursor

RSC Advances ◽  
2015 ◽  
Vol 5 (73) ◽  
pp. 59463-59471 ◽  
Author(s):  
Pallavi Arod ◽  
S. A. Shivashankar
Keyword(s):  
Thin Film ◽  
Carbon Nanotubes ◽  
Vapor Deposition ◽  
Composite Films ◽  
Chemical Vapor ◽  
Deposition Process ◽  
Single Step ◽  
Deposition Pressure ◽  
Iron Iron ◽  
Synthesis Of Carbon Nanotubes

Fe–Fe3O4–CNT composite thin film was obtained by single step chemical vapor deposition process using Fe(acac)3 as the sole precursor. By changing the deposition pressure, the form of carbon deposited could be changed from amorphous to CNTs.

Fabrication and electrochemical characterization of super-capacitor based on three-dimensional composite structure of graphene and a vertical array of carbon nanotubes

2018 ◽  
Vol 52 (22) ◽  
pp. 3039-3044 ◽  
Author(s):  
Daniel Choi ◽  
Eui-Hyeok Yang ◽  
Waqas Gill ◽  
Aaron Berndt ◽  
Jung-Rae Park ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Vapor Deposition ◽  
Composite Structure ◽  
Graphene Layer ◽  
Three Dimensional ◽  
Chemical Vapor ◽  
Deposition Process ◽  
Silicon Substrates ◽  
Vertical Array ◽  
Pressure Chemical

We have demonstrated a three-dimensional composite structure of graphene and carbon nanotubes as electrodes for super-capacitors. The goal of this study is to fabricate and test the vertically grown carbon nanotubes on the graphene layer acting as a spacer to avoid self-aggregation of the graphene layers while realizing high active surface area for high energy density, specific capacitance, and power density. A vertical array of carbon nanotubes on silicon substrates was grown by a low-pressure chemical vapor deposition process using anodized aluminum oxide nanoporous template fabricated on silicon substrates. Subsequently, a graphene layer was grown by another low-pressure chemical vapor deposition process on top of a vertical array of carbon nanotubes. The Raman spectra confirmed the successful growth of carbon nanotubes followed by the growth of high-quality graphene. The average measured capacitance of the three-dimensional composite structure of graphene-carbon nanotube was 780 µFcm−2 at 100 mVs−1.

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