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Search for "fuel cells" in Full Text gives 84 result(s) in Beilstein Journal of Nanotechnology.
Ultramicrosensors based on transition metal hexacyanoferrates for scanning electrochemical microscopy
Beilstein J. Nanotechnol. 2013, 4, 649–654, doi:10.3762/bjnano.4.72
- of hydrogen peroxide (H2O2) is of great importance in monitoring of food and the environment [1] as well as clinical [2], biological and chemical studies [3]. For example, hydrogen peroxide is a marker of inflammatory diseases [4]. Moreover, in fuel cells research, hydrogen peroxide is one of the key
- molecules as it is produced in the cathode chamber of the hydrogen–oxygen fuel cells causing degradation of the proton-exchange membranes [5]. Investigations of the local distribution of hydrogen peroxide on the surface of living cells and electrode materials as well as the in vivo analysis requires sensors
AFM as an analysis tool for high-capacity sulfur cathodes for Li–S batteries
Beilstein J. Nanotechnol. 2013, 4, 611–624, doi:10.3762/bjnano.4.68
- fuel cells (GDL), positioned in front of the cathode has led to capacities, in dependence on the discharge rate, of 1000–1200 mA·g(sulfur)−1 [23]. In this work, the aim is to investigate the electrical and morphological stability of lithium–sulfur cathodes manufactured by suspension spraying or doctor
Large-scale atomistic and quantum-mechanical simulations of a Nafion membrane: Morphology, proton solvation and charge transport
Beilstein J. Nanotechnol. 2013, 4, 567–587, doi:10.3762/bjnano.4.65
- dynamics; Introduction The hydrogen-based power engineering is one of the most important technologies of clean energy. The main problem here is to design efficient fuel cells (FC), electrochemical devices that transform hydrogen fuels into electric power avoiding combustion processes that proceed with
- large energy loss [1]. The earliest fuel cells based on proton exchange membrane (PEM), consisting of a copolymer of sulfonated polystyrene and divinylbenzene, served as the power plants for the Gemini space missions in the early 1960s. Now, PEM fuel cells show the greatest, most immediate, and most
- widespread potential applications and are considered as a promising power source for portable devices, home power plants and vehicles. Typically, PEM is a polymer material, which is a key component of polymer electrolyte fuel cells (PEFCs). The polymer membrane provides a conducting medium for transferring
Novel composite Zr/PBI-O-PhT membranes for HT-PEFC applications
Beilstein J. Nanotechnol. 2013, 4, 481–492, doi:10.3762/bjnano.4.57
- , Russian Academy of Sciences, Vavilova St. 28 , GSP-1, Moscow, 119991, Russia 10.3762/bjnano.4.57 Abstract Novel composite membranes for high temperature polymer-electrolyte fuel cells (HT-PEFC) based on a poly[oxy-3,3-bis(4′-benzimidazol-2″-ylphenyl)phtalide-5″(6″)-diyl] (PBI-O-PhT) polymer with small
- were examined by means of SAXS, thermomechanical analysis (TMA), and were tested in operating fuel cells by means of stationary voltammetry and impedance spectroscopy. The new membranes showed excellent stability in a 2000-hour fuel cell (FC) durability test. The modification of the PBI-O-PhT films
- reduced conductivity due to an excessively high degree of crosslinking. Keywords: composite; high temperature polymer-electrolyte fuel cells (HT-PEFC); impedance spectroscopy; polybenzimidazole (PBI); zirconium; Introduction Polymer-electrolyte fuel cells (PEFC) based on polybenzimidazole (PBI
Functionalization of vertically aligned carbon nanotubes
Beilstein J. Nanotechnol. 2013, 4, 129–152, doi:10.3762/bjnano.4.14
Plasmonics-based detection of H2 and CO: discrimination between reducing gases facilitated by material control
Beilstein J. Nanotechnol. 2012, 3, 712–721, doi:10.3762/bjnano.3.81
- sensors for turbine engines, solid-oxide fuel cells, and other high-temperature applications. Keywords: hydrogen detection; nanocomposites gold nanoparticles; optical sensor; plasmonics; physical vapor deposition; surface plasmon resonance; Introduction Sensors based on surface plasmon resonance have
Distribution of functional groups in periodic mesoporous organosilica materials studied by small-angle neutron scattering with in situ adsorption of nitrogen
Beilstein J. Nanotechnol. 2012, 3, 428–437, doi:10.3762/bjnano.3.49
- -groups; such material shows a high proton conductivity [27] and has potential to create proton-conducting hybrid membranes for applications in fuel cells [28][29], electrodialysis for water purification [30], or photoelectrochemical cells for water splitting with solar light in order to separate the
Noncontact atomic force microscopy study of the spinel MgAl2O4(111) surface
Beilstein J. Nanotechnol. 2012, 3, 192–197, doi:10.3762/bjnano.3.21
- ); polar surfaces; reconstructions; spinel; Introduction While the application of metal oxides in, e.g., catalysis, gas sensors, fuel cells, high-k dielectrics and corrosion protection has seen a very strong development, fundamental research on the surface properties of metal oxides has been a topic of
Template-assisted formation of microsized nanocrystalline CeO2 tubes and their catalytic performance in the carboxylation of methanol
Beilstein J. Nanotechnol. 2011, 2, 776–784, doi:10.3762/bjnano.2.86
- ]. Due to its extraordinary thermal and chemical stability, it is a promising material for catalytic, environmental and energy applications, such as in solid oxide fuel cells (SOFCs) [4][5], or for the elimination of pollutants from automobile exhaust gases, or for fluid catalytic cracking or
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