Merck
  • Home
  • Search Results
  • 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.

MATERIALS
Product Number
Brand
Product Description

Sigma-Aldrich
Potassium hydroxide, free-flowing, Redi-Dri, ACS reagent, ≥85%, pellets
Sigma-Aldrich
Nitric acid, ACS reagent, ≥90.0%
Sigma-Aldrich
Potassium hydroxide on alumina
Sigma-Aldrich
Potassium hydride, in paraffin
Sigma-Aldrich
Potassium, cubes (in mineral oil), 99.5% trace metals basis
Sigma-Aldrich
Potassium phosphate dibasic, reagent grade, ≥98.0%
Sigma-Aldrich
Hydroquinone, ReagentPlus®, ≥99%
Sigma-Aldrich
Sodium phosphate monobasic, BioXtra, ≥99.0%
Sigma-Aldrich
Sodium phosphate monobasic, ReagentPlus®, ≥99.0%
Sigma-Aldrich
Sodium phosphate monobasic, 99.998% trace metals basis
Sigma-Aldrich
Potassium phosphate dibasic, meets USP testing specifications
Sigma-Aldrich
Sodium phosphate monobasic, BioPerformance Certified, suitable for cell culture, suitable for insect cell culture, suitable for plant cell culture, ≥99.0% (titration)
Sigma-Aldrich
Sodium phosphate monobasic, BioReagent, for molecular biology, anhydrous, ≥98%
Sigma-Aldrich
Sodium phosphate monobasic, meets USP testing specifications, anhydrous
Sigma-Aldrich
Hydroquinone, meets USP testing specifications
Sigma-Aldrich
Potassium phosphate dibasic solution, 1.0 M
Sigma-Aldrich
Hydrazine monohydrate, N2H4 64-65 %, reagent grade, 98%
Sigma-Aldrich
Potassium, ingot, 99.95% trace metals basis
Sigma-Aldrich
Potassium, chunks (in mineral oil), 98% trace metals basis
Sigma-Aldrich
Potassium phosphate dibasic, 99.95% trace metals basis
Sigma-Aldrich
Nitric acid, 70%, purified by redistillation, ≥99.999% trace metals basis
Sigma-Aldrich
Hydroquinone, ReagentPlus®, 99%
Sigma-Aldrich
Hexaammineruthenium(III) chloride, 98%
Sigma-Aldrich
Potassium hydride, 30 wt % dispersion in mineral oil
Sigma-Aldrich
Sodium phosphate monobasic solution, BioUltra, 5 M in H2O
Sigma-Aldrich
Potassium phosphate dibasic, anhydrous, for luminescence, for molecular biology, BioUltra, ≥99.0% (T)
Sigma-Aldrich
Potassium hydroxide, technical, ≥85%, powder
Sigma-Aldrich
Sodium phosphate monobasic, anhydrous, free-flowing, Redi-Dri, ≥99.0%
Sigma-Aldrich
Potassium hydroxide, anhydrous, ≥99.95% trace metals basis
Sigma-Aldrich
Potassium hydroxide, ≥85% KOH basis, pellets, white