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  • 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

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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

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Definition

Barium

Barium Barium () is a chemical element . It has the symbol Ba, and atomic number 56. Barium is a soft silvery metal lic alkaline earth metal . It is never found in nature in its pure form due to i ... more

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