Browsing by Author "Balun Kayan, Didem"

The activity of PAni-Chitosan composite film decorated with Pt nanoparticles for electrocatalytic hydrogen generation

Balun Kayan, Didem; Koçak, Derya; İlhan, Merve (Pergamon-Elsevier Science Ltd, 2016)

To develop low-cost, highly efficient and stable electrocatalysts is one of the main challenges for hydrogen production from a water electrolysis system. Herein, we describe platinum nanoparticles supported on pencil ...

Altın nanopartiküllerle modifiye edilmiş biyokömür üzerinde elektrokatalitik hidrojen gazı üretimi

Erkol, Hatice (Aksaray Üniversitesi Fen Bilimleri Enstitüsü, 2023)

Bu çalışmada suyun elektrolizi ile hidrojen elde etmek amacıyla katalitik aktivitesi yüksek, düşük maliyetli ve yüksek verimli bir elektrot materyalinin geliştirilmesi amaçlanmıştır. Bu amaçla camsı karbon elektrot (CKE) ...

Bio-reduced GO/Pd nanocomposite as an efficient and green synthesized catalyst for hydrogen evolution reaction

Balun Kayan, Didem; Turunç, Ersan (John Wiley and Sons Ltd, 2021)

In this work, we introduced a green methodology for the production of palladium (Pd) decorated reduced graphene oxide (rGO), using an endemic plant of Onosma malatyana Binzet (OMB) root extract for the first time and used ...

Biyokütleye uygulanan ön işlemlerin piroliz ürünleri üzerine etkisi

Alayont, Şenol (Aksaray Üniversitesi Fen Bilimleri Enstitüsü, 2019)

Biyokütle, termokimyasal dönüşüm yöntemleriyle sıvı, katı ve gaz ürünlere dönüştürülmektedir. Termokimyasal dönüşüm yöntemlerinden biri olan piroliz yönteminde, hammadde yüksek sıcaklıkta oksijensiz ortamda parçalanarak ...

Dinitrogen reduction on a polypyrrole coated Pt electrode under high-pressure conditions: Electrochemical impedance spectroscopy studies

Balun Kayan, Didem; Köleli, Fatih (2015)

The electrochemical impedance spectroscopy (EIS) responses of a polypyrrole (PPy)-coated platinum electrode were investigated during N2 -reduction to ammonia in aqueous medium. Kinetic parameters such as film resistance, ...

Electrocatalytic hydrogen production on a modified pencil graphite electrode

Balun Kayan, Didem; Koçak, Derya; İlhan, Merve; Koca, Atıf (Pergamon-Elsevier Science Ltd, 2017)

The development of Polyaniline (PAni)-Chitosan (Chi) and PAni-Chi/Au conducting composite films coated on pencil graphite and used as electrocatalysts for hydrogen production from water is discussed in this study for the ...

Electrocatalytic hydrogen production on GCE/RGO/Au hybrid electrode

Balun Kayan, Didem; Koçak, Derya; İlhan, Merve (Elsevier Ltd, 2018)

We have prepared a nanocomposite hybrid film to produce a collaborative network of gold (Au) nanoparticles that are highly dispersed on reduced graphene oxide (RGO) sheets, and tested it for electrocatalytic hydrogen ...

Elektrokatalitik hidrojen üretiminde g-C3N4/NiFe2O4/Ni nanokompozit yapısının aktifliğinin incelenmesi

Bozkurt, Pelin (Aksaray Üniversitesi Fen Bilimler Enstitüsü, 2023)

Alternatif bir enerji kaynağı olarak sudan hidrojen üretimi temiz bir enerji kaynağı olarak kabul edilmektedir. Suyun elektrolizi ile hidrojen üretimi yoğun olarak çalışılan bir araştırma konusudur. Literatürde bu konuda ...

Enhancing the performance of unitized regenerative proton exchange membrane fuel cells through microwave-synthesized chitosan based nanocomposites

Yelegen, Nebi; Kümük, Berre; Balun Kayan, Didem; Baran, Talat; Kaplan, Yüksel (Elsevier, 2024)

The membrane electrode assembly (MEA) is a core component of unitized regenerative proton exchange membrane fuel cells (UR-PEMFCs). The studies aimed to improve the cell performance and reduce the cost of the MEAs for the ...

Facile fabrication of Sn/SnOx electrode as an efficient electrocatalyst for CO2 reduction to formate

Rende, Kumru; Balun Kayan, Didem; Çolakerol Arslan, Leyla; Ergenekon, Pınar (Elsevier Ltd, 2023)

Producing valuable hydrocarbons via electrochemical reduction of CO2 has been a promising active research area. In this study, it was aimed to develop a low-cost and efficient Sn-based electrode reducing CO2 to formate ...

Hydrogen production via water electrolysis on an active electrocatalyst: rGO/Ni nanocomposite

Balun Kayan, Didem (İbrahim Demirtaş, 2023)

The development of inexpensive and effective electrocatalyses are all-important for hydrogen production from water electrolysis. In this study, a facile design of a reduced graphene oxide (rGO) based electrocatalyst decorated ...

Improvement of anti-corrosion performance (surface and near the cut edge) and mechanical properties of epoxy coatings modified with nano, micro and hybrid ZnO particles

Kabaoğlu, Emre; Karabörk, Fazliye; Balun Kayan, Didem; Akdemir, Ahmet (SAGE Publications Ltd, 2023)

Composites were formed by incorporating nano, micro and hybrid-ZnO particles into the epoxy matrix at the same loading levels (3%) and applied at 90 μm thickness on the galvanized steel substrate using a film applicator ...

Improvement of electrochemical and structural properties of polycarbazole by simultaneous electrodeposition of chitosan

Balun Kayan, Didem; Polat, Veysel (2017)

Polycarbazole/chitosan composite materials were synthesized electrochemically at various loadings of chitosan (Chi). Their electrochemical, structural, thermal, and morphological characterizations were investigated by ...

İletken polimer/metal nanokompozit yapılarla modifiye edilmiş kalem grafit elektrot üzerinde elektrokatalitik hidrojen üretimi

Koçak, Derya (Aksaray Üniversitesi Fen Bilimleri Enstitüsü, 2017)

Bu çalışmada kalem grafit elektrot yüzeyi, kitosan varlığında polianilin (PAni) ve polipirol (PPy) iletken polimerleriyle modifiye edilmiştir. Elde edilen bu kompozit yapıların suyun elektrolizindeki katalitik aktiviteleri ...