RRDE and voltammetric study of ORR on pyrolyzed Fe/polyaniline catalyst. On the origins of variable Tafel slopes

J Chlistunoff - The Journal of Physical Chemistry C, 2011 - ACS Publications
Catalytic activity of heat-treated iron and polyaniline-based oxygen reduction catalysts was
studied in aqueous acidic media using the rotating ring disk (RRDE) technique and linear …

Direct electron transfer from glucose oxidase immobilized on polyphenanthroline-modified glassy carbon electrode

Y Oztekin, A Ramanaviciene, Z Yazicigil… - Biosensors and …, 2011 - Elsevier
This study reports direct electron transfer (DET) from immobilized glucose oxidase (GOx) via
grafted and electropolymerized 1, 10-phenanthroline monohydrate (PMH). The layer of poly …

Biofuel cell based on anode and cathode modified by glucose oxidase

V Krikstolaityte, Y Oztekin, J Kuliesius… - …, 2013 - Wiley Online Library
A single compartment biofuel cell (BFC) based on an anode and a cathode powered by the
same fuel glucose is reported. Glucose oxidase (GOx) from Aspergillus niger was applied as …

Determination of iron species in samples of iron-fortified food

P Niedzielski, M Zielinska-Dawidziak, L Kozak… - Food Analytical …, 2014 - Springer
The paper presents the determination of iron forms in food products. The procedure of
sample extraction was developed and optimized, preserving the content of particular forms …

1, 10-Phenanthroline derivatives as mediators for glucose oxidase

Y Oztekin, V Krikstolaityte, A Ramanaviciene… - Biosensors and …, 2010 - Elsevier
This study is focused on possible application of some 1, 10-phenanthroline derivatives
(PDs) in the development of biosensors and biofuel cells. Differently from some other …

Organic ligands unexpectedly increase the toxicity of chromium (III) for luminescent bacteria

W Zhou, W Long, T Xu, L Peng, W Zhang - Environmental Chemistry …, 2019 - Springer
Organic ligands are commonly believed to decrease the toxicity of metal ions, but there is
few experimental evidence, especially for chromium (Cr (III)), which often coexists with …

The tandem analytical method of flow injection diode array spectrophotometry and flame atomic absorption spectrometry (FI-DAD (vis)-FAAS) in iron speciation studies …

L Kozak, P Niedzielski, W Wachowiak - Microchemical Journal, 2013 - Elsevier
The article presents the new analytical method of determination of the content of selected
iron forms in soil and sediment extracts. The presented tandem analytical system uses the …

Camsı karbon elektrot yüzeyine çeşitli fenantrolin türevlerinin modifikasyonu, yüzey karakterizasyonu, elektrokimyasal ve spektroskopik özelliklerinin incelenmesi

Y Öztekin - 2008 - acikerisim.selcuk.edu.tr
Özet Bu tez çalışmasında, 1, 10? Fenantrolin türevlerinin sulu ve susuz ortamda Camsı
karbon elektrot (GC) yüzeyinde elektrokimyasal davranışları dönüşümlü voltametri tekniği ile …

Structural, spectroscopic and theoretical studies on 3, 4, 7, 8-tetramethyl-1, 10-phenantroline complex with picric acid

G Bator, L Sobczyk, W Sawka-Dobrowolska, J Wuttke… - Chemical Physics, 2013 - Elsevier
The almost planar molecular complex, formed by 3, 4, 7, 8-tetramethyl-phenantroline
(Me4phen) and picric acid (2, 4, 6-trinitrophenol, PA), has been investigated by using X-ray …

Surface properties tuning of welding electrode-deposited hardfacings by laser heat treatment

A Oláh, C Croitoru, MH Tierean - Applied Surface Science, 2018 - Elsevier
In this paper, several Cr-Mn-rich hardfacings have been open-arc deposited on S275JR
carbon quality structural steel and further submitted to laser treatment at different powers. An …