Journal ArticleDOI
Direct electrochemistry of horseradish peroxidase on graphene-modified electrode for electrocatalytic reduction towards H2O2
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TLDR
In this paper, a Horseradish peroxidase (HRP) immobilized on a graphene film glassy carbon electrode was found to undergo direct electron transfer and exhibited a fast electron transfer rate constant of 4.63 s −1.About:
This article is published in Electrochimica Acta.The article was published on 2011-01-01. It has received 97 citations till now. The article focuses on the topics: Cyclic voltammetry & Enzyme electrode.read more
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Graphene oxide: preparation, functionalization, and electrochemical applications.
Da Chen,Hongbin Feng,Jinghong Li +2 more
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Recent advances in electrochemical sensing for hydrogen peroxide: a review
TL;DR: In this article, the electrocatalytic H(2)O( 2) determinations are mainly focused on because they can provide a superior sensing performance over non-electrocatalysttic ones.
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Recent advances in graphene-based nanomaterials for fabricating electrochemical hydrogen peroxide sensors.
Ruizhong Zhang,Wei Chen +1 more
TL;DR: Graphene-based nanomaterials as immobilization matrix of heme proteins for the fabrication of enzymatic H2O2 electrochemical biosensors and the application of graphene-based electrocatalysts in constructing non-enzymaticH2O 2 electrochemical sensors is discussed in detail.
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Synthesis of graphene–carbon nanotube hybrid foam and its use as a novel three-dimensional electrode for electrochemical sensing
Xiaochen Dong,Xiaochen Dong,Yanwen Ma,Guoyin Zhu,Yinxi Huang,Jing Wang,Mary B. Chan-Park,Lianhui Wang,Wei Huang,Peng Chen +9 more
TL;DR: In this paper, the 3D graphene-CNT hybrid foams were used as novel 3D electrochemical electrodes for sensing applications, and they showed high sensitivity (∼470.7 mA M−1 cm−2) and low detection limit (∲20 nM with S/N ≈ 9.2) for dopamine detection.
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Graphenes in chemical sensors and biosensors
TL;DR: The use of graphenes alone or in composite form can improve the performance of chemical sensors and biosensors, particularly with respect to dynamic ranges, lower limits of detection, selectivity and size of instrumentation as mentioned in this paper.
References
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Electric Field Effect in Atomically Thin Carbon Films
Kostya S. Novoselov,Andre K. Geim,Sergey V. Morozov,Da Jiang,Y. Zhang,S. V. Dubonos,Irina V. Grigorieva,A. A. Firsov +7 more
TL;DR: Monocrystalline graphitic films are found to be a two-dimensional semimetal with a tiny overlap between valence and conductance bands and they exhibit a strong ambipolar electric field effect.
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General expression of the linear potential sweep voltammogram in the case of diffusionless electrochemical systems
TL;DR: In this article, the equation of the linear potential sweep voltammogram is derived for any degree of reversibility of the electrochemical reaction for the following methods: surface voltammetry when both the oxidized and the reduced forms are strongly adsorbed, and a Langmuir isotherm is obeyed, thin layer voltamometry, and linear potential sweeping coulometry.
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Preparation and Characterization of Graphene Oxide Paper
Dmitriy A. Dikin,Sasha Stankovich,Eric Zimney,Richard D. Piner,Geoffrey Dommett,Guennadi Evmenenko,SonBinh T. Nguyen,Rodney S. Ruoff +7 more
TL;DR: Graphene oxide paper is reported, a free-standing carbon-based membrane material made by flow-directed assembly of individual graphene oxide sheets that outperforms many other paper-like materials in stiffness and strength.
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Transparent, Conductive Graphene Electrodes for Dye-Sensitized Solar Cells
TL;DR: Transparent, conductive, and ultrathin graphene films, as an alternative to the ubiquitously employed metal oxides window electrodes for solid-state dye-sensitized solar cells, are demonstrated and show high chemical and thermal stabilities and an ultrasmooth surface with tunable wettability.