Plasmonics-based detection of H₂ and CO: discrimination between reducing gases facilitated by material control

• Gnanaprakash Dharmalingam,
• Nicholas A. Joy,
• Benjamin Grisafe and
• Michael A. Carpenter

Beilstein J. Nanotechnol. 2012, 3, 712–721, doi:10.3762/bjnano.3.81

• -temperature-combustion applications is very important for regulating the discharge of gases such as NO2 and CO as well as unburnt fuel into the environment. This work reports the detection of H2 and CO gases by employing a metal–metal oxide nanocomposite (gold–yttria stabilized zirconia (Au–YSZ)) film

• temperature of 300 °C [15]. For consistent and sensitive detection of H2, CO and NO2, Rogers et al. and Sirinakis et al. used Au–yttria stabilized zirconia (Au–YSZ) films and reported sensing observations through hundreds of hours of laboratory testing between 500 and 800 °C [16][17][18]. While detection of

• overcoat has a crucial role in restricting the growth of the Au NPs during long-term high-temperature exposures, and its thickness has a direct impact on the number of oxygen vacancies in the film. The vacancies are introduced into the film through the yttria dopant in zirconia. YSZ is an excellent oxygen

Self-assembled monolayers and titanium dioxide: From surface patterning to potential applications

• Yaron Paz

Beilstein J. Nanotechnol. 2011, 2, 845–861, doi:10.3762/bjnano.2.94

• grafting density with respect to chemisorption by conventional methods (2.8–3.0 molecules per nm2 versus 4.3–4.8 molecules per nm2). It is worth mentioning that a study on organosilane monolayers formed on the surfaces of zirconia and titania (anatase and rutile), by a gas–phase process employing

Synthesis and catalytic applications of combined zeolitic/mesoporous materials

• Jarian Vernimmen,
• Vera Meynen and
• Pegie Cool

Beilstein J. Nanotechnol. 2011, 2, 785–801, doi:10.3762/bjnano.2.87

• ]. Reprinted from [147][152]. Copyright 2008 and 2009, with permission from Elsevier. Schematic representation of the formation of micro-meso-macroporous metal oxides (zirconia) [154]. Reproduced by permission of The Royal Society of Chemistry. Isolated

Template-assisted formation of microsized nanocrystalline CeO₂ tubes and their catalytic performance in the carboxylation of methanol

• Jörg J. Schneider,
• Meike Naumann,
• Christian Schäfer,
• Armin Brandner,
• Heiko J. Hofmann and
• Peter Claus

Beilstein J. Nanotechnol. 2011, 2, 776–784, doi:10.3762/bjnano.2.86

• ceria and other electron deficient metal oxides, such as zirconia [30][31] and titania [33], are active in direct carboxylation of methanol to DMC, they are also easily deactivated, sometimes already before recycling experiments can be started, resulting in only marginal methanol conversion. It can be

Zirconium nanoparticles prepared by the reduction of zirconium oxide using the RAPET method

• Michal Eshed,
• Swati Pol,
• Aharon Gedanken and
• Mahalingam Balasubramanian

Beilstein J. Nanotechnol. 2011, 2, 198–203, doi:10.3762/bjnano.2.23

• production of explosive materials for munitions. In this paper we report the successful synthesis of metallic Zr nanoparticles. The reaction is carried out by reacting zirconia with magnesium at 750 °C in a closed Let-Lok® cell. We have named this process RAPET (Reaction under Autogenic Pressure at Elevated

• nm. These numbers show that there is no change in the particle size during the reaction that the zirconia undergoes. In addition, TEM measurements were carried out on the precursor (Figure 4a) and the product (Figure 4b). While it is clear that agglomeration takes place as a result of nanoparticle

• zirconium nanoparticles with an average size of 63 nm by reducing zirconia at 750 °C. The TEM images show particles without a specific shape and the XRD measurements indicate that the product was metallic Zr without any traces of the by-product, MgO. Distinct peaks of the starting material, ZrO2, are not