Yazar "Burhan, Hakan" seçeneğine göre listele

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    Fuel cell electrochemistry
    (Materials Research Forum Llc, 2019) Ünal, Fatma Aydın; Burhan, Hakan; Karaman, Neslihan; Arıkan, Kubilay; Şimşek, Bahar; Akyıldız, Burcu; Şen, Fatih
    Fuel cells can be defined as devices which convert chemical energy into electrical energy. They have a potential capability for promising energy systems. Especially, as a clean and renewable energy source, fuel cells have very significant importance. There are many types of fuel cells such as alcohol, hydrogen, biofuel cells etc. This chapter examines the general electrochemistry of fuel cells. Furthermore, the basis of a fuel cell, fuel cell chemistry, substrates and potentials, electrochemistry, types of the electrode, potentiostats have been examined in detail. Besides, the electrochemistry characterization techniques, polarisation and power curves, microbial fuel cell and their reactions, limitations of the electrochemical reactions are also described in detail.
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    Ionic Polymer-Metal Composite Actuators Operable in Dry Conditions
    (Springer Science and Business Media B.V., 2019) Ünal, Aydın; Burhan, Hakan; Karakuş, Sümeyye; Karaelioglu, Gizem; Sen, Fatih Gürça?
    Ionic polymer-metal composite (IPMC) have great applications, in terms of being utilized in areas, such as actuators, artificial muscles and more. These composite can also be used for robotics, biomedical and biomimetic applications. Among these applications, ionic polymer metal composite actuators are mostly preferred devices used in some applications, such as biomimetic robotics, biomedical devices, manipulation systems etc. For these types of actuators, ion-exchange polymer-metal composite (IPMC) is very attractive and active materials, and the synthesis and characterization conditions are very important parameters that should be thought. For this reason, this chapter provides information on ionic polymer metal composite actuators that can be operated under dry conditions. © 2019, Springer Nature Switzerland AG.
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    Öğe
    Ionic Polymer-Metal Composite Membranes Methods of Preparation
    (Springer Science and Business Media B.V., 2019) Ünal, Aydın; Burhan, Hakan; Elmusa, Fatima; Hersi, Shukri; Sen, Fatih Gürça?
    The ionic polymer-metal composite membranes are generally perfluorinated membranes such as Nafion and Flemion. These composites are mostly electroactive materials and they can be used as activators and sensors. The electrochemical-mechanical properties of ionic polymer-metal composites depend on many factors, such as the nature of the solvent, the morphology of the electrodes, and also other factors. This chapter provides general information about the preparation methods of the ionic polymer-metal composite membranes. © 2019, Springer Nature Switzerland AG.
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    Öğe
    Microbial fuel cells characterization
    (Materials Research Forum Llc, 2019) Ünal, Fatma Aydın; Çalımlı, Mehmet Harbi; Burhan, Hakan; Şişmanoğlu, Fatma; Yalçın, Büşra; Şen, Fatih
    Microbial fuel cells (MFCs) received considerable interest in recent years and represent a promising technology based on the conversion of chemical energy into electrical energy by microbial catalysis. However, their power output and stability is low due to the influence of the cathode, electrolyte, membrane, microorganism of the anode, and cell configuration. The choice of appropriate characterization techniques and methods to examine these problems, which limit the development of MFCs, is extremely important. For this reason, this chapter focuses on biochemical and electrochemical characterization techniques in order to examine a variety of surface morphology, analytical and spectroscopic details.