Barium

News Barium

• New material for solid oxide fuel cells

  Scientists have replaced some of the iron atoms in the composition Nd0.5Ba0.5FeO3-δ by cobalt, while simultaneously increasing the conductivity and lowering the thermal expansion of the material. To improve conductivity through the change in the number of defects as a starting point for the study, s more

• Oxidation of sulfides with perovskite catalyst
  

  Researchers at Tokyo Institute of Technology have developed a ruthenium-based perovskite catalyst that shows strong activity even at low temperatures (down to 313 K). The reusable catalyst does not require additives, meaning that it can prevent the formation of toxic by-products. The oxidation of su more

• The apparent inner calm of quantum materials
  

  Transitions between different phases of matter are part of our day-to-day lives: when water freezes, for example, it passes from liquid to solid state. Some of these transitions may be of a different kind, resulting from so-called topological excitations that force all the particles to act in unison more

Videos Barium

Barium

Barium meals (barium sulfate, not toxic barium) are among the topics in our updated video about the element Barium. more

Infographics Barium

Group 2 Elements

The second of a series of infographics on the groups of the periodic table, here some general properties of the group 2 elements are examined. As stated previously, these are primarily aimed at secondary school students, hence the relative simplicity and generality of the information presented. more

The Dark Side of Fireworks

Many of us enjoyed watching spectacular fireworks displays to usher in the new year. However, the vibrant colours of fireworks belie the effects that they can have on the environment. With this graphic, we take a look at some of the issues that they can cause. more

The Chemistry of Sparklers

It’s Fireworks Night here in the UK tomorrow, which means fireworks (obviously), bonfires and sparklers. We’ve looked at fireworks in a previous post, so this time around it’s time to take a look at the chemicals that go into producing sparklers, and their various roles. In sparklers, there are thre more

Publications Barium

• Structural, optical and X-ray attenuation properties of Tb3+:BaxCe1-xF3-x (x=0.18 – 0.48) nanospheres synthesized in polyol medium

  Uniform Ba0.18Ce0.82F2.82 nanospheres have been obtained after aging at 120 ºC for 20 hours a solution of barium and cerium nitrates and sodium tetrafluoroborate in a mixture of ethylene glycol and water. The spheres diameter could be tailored from 65 nm to 80 nm by varying the NaBF4 concentration w more

• Particle Dispersibility and sound propagation of ultrasounds for magnetic soft composites

  Publication date: September 2018 Source:Reactive and Functional Polymers, Volume 130 Author(s): Yuri Tsujiei, Shota Akama, Junko Ikeda, Yoshihiro Takeda, Mika Kawai, Tetsu Mitsumata We measured the sound velocity for magnetic soft composites consisting of a polymeric matrix of poly more

• Synthesis, structure and electronic structure calculation of a new perovskite-type phosphate fluoride K2BaPO4F

  Publication date: July 2018 Source:Inorganic Chemistry Communications, Volume 93 Author(s): Mei-Si Zhang, Li-Xian Chang, Li Wang, Mehriban Hojahmat, Maierhaba Abudoureheman A new barium potassium phosphate fluoride K2BaPO4F has been successfully synthesized by solid-state reaction. S more