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  • Electrochemical Fluorographane: Hybrid Electrocatalysis of Biomarkers, Hydrogen Evolution, and Oxygen Reduction.

Electrochemical Fluorographane: Hybrid Electrocatalysis of Biomarkers, Hydrogen Evolution, and Oxygen Reduction.

Chemistry (Weinheim an der Bergstrasse, Germany) (2015-10-08)
Rui Gusmão, Zdeněk Sofer, Filip Šembera, Zbyněk Janoušek, Martin Pumera
ABSTRACT

Fluorographane (C1 Hx F1-x+δ )n is a new member of the graphene family that exhibits hydrophobicity and a large band gap that is tunable based on the level of fluorination. Herein, sensing and energy applications of fluorographane are reported. The results reveal that the carbon-to-fluoride ratio of fluorographane has a great impact on the electrochemical performance of the materials. Lowered oxidation potentials for ascorbic and uric acids, in addition to a catalytic effect for hydroquinone and dopamine redox processes, are obtained with a high fluoride content. Moreover, fluorographane, together with residual copper- and nickel-based doping, acted as a hybrid electrocatalyst to promote hydrogen evolution and oxygen reduction reactions with considerably lower onset potentials than those of graphane (starting material), which makes this a promising material for a broad range of applications.

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Sigma-Aldrich
Acido cloridrico, ACS reagent, 37%
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Acido solforico, ACS reagent, 95.0-98.0%
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Acido nitrico, ACS reagent, 70%
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N,N-dimetilformammide, ACS reagent, ≥99.8%
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Idrossido di potassio, ACS reagent, ≥85%, pellets
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Acido cloridrico, ACS reagent, 37%
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Fosfato di potassio, ACS reagent, ≥98%
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Cloruro di idrogeno, 4.0 M in dioxane
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Idrossido di potassio, reagent grade, 90%, flakes
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Acido nitrico, 70%, purified by redistillation, ≥99.999% trace metals basis
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Acido cloridrico, 1.0 N, BioReagent, suitable for cell culture
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Potassium hydroxide solution, 45 wt. % in H2O
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Acido solforico, 99.999%
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Acido cloridrico, meets analytical specification of Ph. Eur., BP, NF, fuming, 36.5-38%
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Idrossido di potassio, semiconductor grade, pellets, 99.99% trace metals basis (Purity excludes sodium content.)
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Acido cloridrico, 37 wt. % in H2O, 99.999% trace metals basis
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N,N-dimetilformammide, puriss. p.a., ACS reagent, reag. Ph. Eur., ≥99.8% (GC)
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Acido cloridrico, 36.5-38.0%, BioReagent, for molecular biology
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Acido cloridrico, puriss. p.a., ACS reagent, reag. ISO, reag. Ph. Eur., fuming, ≥37%, APHA: ≤10
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Cloruro di idrogeno, 2.0 M in diethyl ether
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Potassium hydroxide solution, volumetric, 8.0 M KOH (8.0N)
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Potassium chlorate, ACS reagent, ≥99.0%
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Acido nitrico, puriss. p.a., reag. ISO, reag. Ph. Eur., for determinations with dithizone, ≥65%
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Fosfato di potassio, puriss. p.a., ACS reagent, anhydrous, ≥99.0% (T)
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Acido nitrico, puriss. p.a., 65.0-67.0%
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Acido solforico, puriss. p.a., for determination of Hg, ACS reagent, reag. ISO, reag. Ph. Eur., 95.0-97.0%
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Idrossido di potassio, ≥85% KOH basis, pellets, white
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N,N-dimetilformammide, ReagentPlus®, ≥99%
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Acido cloridrico, volumetric, 0.1 M HCl (0.1N), endotoxin free
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N,N-dimetilformammide, for molecular biology, ≥99%