ChemInform Abstract: ROLE OF STRUCTURE AND ELECTRONIC INTERACTIONS IN THE CATALYTIC BEHAVIOR OF NIO‐TIO2 SYSTEM

Abstract

Die Eigenschaften von gleichzeitig gefälltem NiO ‐TiO2 mit NiO‐Gehalten von 0‐100% werden durch Röntgenanalyse, Elektronenmikroskopie, DTA, IR‐Spektren, Messungen der Adsorption, Leitfähigkeit, Austrittsarbeit, magnetischen Suszeptibilität und ESR untersucht.

Au Nanoparticles in Nanocrystalline TiO2−NiO Films for SPR-Based, Selective H2S Gas Sensing

“…In this paper, we report the synthesis and characterization of TiO 2 −NiO thin films containing Au nanoparticles (NPs) and the determination of their optical gas sensing properties toward different gases (H 2 , CO, propane, and H 2 S). While most of the literature concerning TiO 2 −NiO nanocomposite materials deals with catalysis − and photocatalysis, − and other particular applications of these systems are electrochromism, − solar cells, , and supercapacitors, only few gas sensing studies on similar material have been reported so far. − In particular, neither the optical gas sensing properties of TiO 2 −NiO films nor studies on Au NPs dispersed inside TiO 2 −NiO films have been reported. The two specific metal oxide components, i.e., TiO 2 and NiO, were selected for the nanocomposite thin films because of the known catalytic and sensing properties of these materials, and the embedding of Au NPs was performed to enhance the optical sensitivity of the nanocomposites.…”

“…[36][37][38] In this paper, we report the synthesis and characterization of TiO 2 -NiO thin films containing Au nanoparticles (NPs) and the determination of their optical gas sensing properties toward different gases (H 2 , CO, propane, and H 2 S). While most of the literature concerning TiO 2 -NiO nanocomposite materials deals with catalysis [39][40][41][42] and photocatalysis, [43][44][45] and other particular applications of these systems are electrochromism, [46][47][48] solar cells, 44,49 and supercapacitors, 50 only few gas sensing studies on similar material have been reported so far. [51][52][53] In particular, neither the optical gas sensing properties of TiO 2 -NiO films nor studies on Au NPs dispersed inside TiO 2 -NiO films have been reported.…”

The nature of the potassium compound acting as a promoter in iron-alumina catalysts for ammonia synthesis

“…Catalyst 4. This catalyst was prepared from a solution of Fe(NO& and Al(NO,), by coprecipitation by addition of ammonia (26). The precipitate was dried (75-l 10°C) and compressed to tablets (6 X lo8 N me2).…”