Rock Chemistry of Worlds That Once Were (Planetary Science)

The analysis of the spectral lines of the gas atmospheres of 23 white dwarfs contaminated by the remains of rocky planets – detected by Keck, Hubble and other telescopes – allowed a US astronomer and geologist to reconstruct the chemical composition of the planets themselves. Composition turned out to be quite different from that encountered in … Continue reading Rock Chemistry of Worlds That Once Were (Planetary Science)

How to Find Hidden Oceans on Distant Worlds? Use Chemistry (Planetary Science)

A new study shows how the chemicals in an exoplanet’s atmosphere can, in some cases, reveal whether or not the temperature on its surface is too hot for liquid water. In our solar system, planets are either small and rocky (like Earth) or large and gaseous (like Neptune). But around other stars, astronomers have found planets … Continue reading How to Find Hidden Oceans on Distant Worlds? Use Chemistry (Planetary Science)

Scientists Discover New Mechanisms of Activity Improvement On Bimetallic Catalysts For Hydrogen Generation & Fuel Cells (Chemistry)

A group of researchers at the Hong Kong University of Science and Technology (HKUST) and Xiamen University has revealed new understandings of how surface ruthenium atoms can improve the hydrogen evolution and oxidation activities of platinum. This discovery opens a new venue for rational design of more advanced catalysts for electrolyzer and fuel cell applications.  Hydrogen is … Continue reading Scientists Discover New Mechanisms of Activity Improvement On Bimetallic Catalysts For Hydrogen Generation & Fuel Cells (Chemistry)

New Solvents To Break Down Plant Cellulose For Bioethanol (Chemistry)

Kanazawa University researchers experimented with different combinations of zwitterionic molecules to produce a solvent that is liquid below 100°C and very effective at breaking down cellulose. This research may lead to much more cost-effective and safe production of biofuels, such as ethanol from switchgrass or plant husks. Scientists from the Institute of Science and Engineering … Continue reading New Solvents To Break Down Plant Cellulose For Bioethanol (Chemistry)

Researchers Report A Fast, Efficient Method For Synthesizing Glycoproteins (Chemistry)

Many processes in the body are regulated by the functions of proteins. For example, almost all molecules—such as DNA, proteins, oligosaccharides, and small bioactive molecules—are generated by enzymes. However, changes in protein functions in response to abnormal conditions cause critical diseases. Researchers from Osaka University have demonstrated a rapid, robust chemical method for preparing the … Continue reading Researchers Report A Fast, Efficient Method For Synthesizing Glycoproteins (Chemistry)

Green Hydrogen: Why Do Certain Catalysts Improve In Operation? (Chemistry)

As a rule, most catalyst materials deteriorate during repeated catalytic cycles – they age. But there are also compounds that increase their performance over the course of catalysis. One example is the mineral erythrite, a mineral compound comprising cobalt and arsenic oxides with a molecular formula of (Co3(AsO4)2∙8H2O). The mineral stands out because of its purple colour. … Continue reading Green Hydrogen: Why Do Certain Catalysts Improve In Operation? (Chemistry)

Chemists Produced An Unusual Organic Pigment, Which is “Switched On” By An Electrical Charge (Chemistry)

In photosynthesis and organic photovoltaics, pigment molecules convert light into electrical charge. A team of chemists have now produced an unusual organic pigment, which is “switched on” by an electrical charge to become a potent dye that absorbs light in the near-infrared range. The team’s study, published in the journal Angewandte Chemie, suggests potential applications in … Continue reading Chemists Produced An Unusual Organic Pigment, Which is “Switched On” By An Electrical Charge (Chemistry)

Proteins Communicating Through the DNA Molecule Constitute A Newly Discovered Genetic “Switch” (Chemistry)

Proteins can communicate through DNA, conducting a long-distance dialogue that serves as a kind of genetic “switch,” according to Weizmann Institute of Science researchers. They found that the binding of proteins to one site of a DNA molecule can physically affect another binding site at a distant location, and that this “peer effect” activates certain … Continue reading Proteins Communicating Through the DNA Molecule Constitute A Newly Discovered Genetic “Switch” (Chemistry)

3D Ordered Channel Enhances Electrocatalysis (Chemistry)

A team led by Prof. YU Shuhong and Prof. HOU Zhonghuai from the University of Science and Technology of China (USTC) of the Chinese Academy of Sciences developed a theory-guided microchemical engineering (MCE) approach to manipulate the reaction kinetics and thus optimize the electrocatalytic performance of methanol oxidation reaction (MOR) in 3D ordered and crossed-linked … Continue reading 3D Ordered Channel Enhances Electrocatalysis (Chemistry)