#hydroxyl

[er-cryptid]

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[materialsscienceandengineering]

Hybrid nanomaterials bristle with potential

By combining multiple nanomaterials into a single structure, scientists can create hybrid materials that incorporate the best properties of each component and outperform any single substance. A controlled method for making triple-layered hollow nanostructures has now been developed at KAUST. The hybrid structures consist of a conductive organic core sandwiched between layers of electrocatalytically active metals: their potential uses range from better battery electrodes to renewable fuel production.

Although several methods exist to create two-layer materials, making three-layered structures has proven much more difficult, says Peng Wang from the Water Desalination and Reuse Center who co-led the current research with Professor Yu Han, member of the Advanced Membranes and Porous Materials Center at KAUST. The researchers developed a new, dual-template approach, explains Sifei Zhuo, a postdoctoral member of Wang's team.

The researchers grew their hybrid nanomaterial directly on carbon paper—a mat of electrically conductive carbon fibers. They first produced a bristling forest of nickel cobalt hydroxyl carbonate (NiCoHC) nanowires onto the surface of each carbon fiber (image 1). Each tiny inorganic bristle was coated with an organic layer called hydrogen substituted graphdiyne (HsGDY) (image 2).

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[olddailycoffeeandnotes]

[materialsscienceandengineering]

Key question on titanium oxide, water interactions resolved

Researchers resolve key question on titanium oxide, water interactions

When a molecule of water comes in for a landing on the common catalyst titanium oxide, it sometimes breaks up and forms a pair of molecule fragments known as hydroxyls. But scientists had not been able to show how often the breakup happened. Now, researchers have determined that water is only slightly more likely to stay in one piece as it binds to the catalyst surface than it is to form the hydroxyl pairs.

The result -- water's advantage is so small -- might surprise some chemists. But understanding that small advantage has wide-ranging significance for a variety of potential applications in industries that use titanium dioxide. These industries include alternative fuel production, solar energy and food safety, and even self-cleaning windows. It will also help scientists better understand how acids behave and expand their knowledge of how molecules split.

"How water binds was the big question," said chemist Zdenek Dohnalek at the Department of Energy's Pacific Northwest National Laboratory. "Chemists had mixed information from a lot of different methods, and theorists also had ideas. Using a unique combination of instruments, we've finally solved it."

The team reported the work in the Proceedings of the National Academy of Sciences.

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[genomerx]

Aqua Solutions 100C HYDROXYL REAGENT 4L DC993277 #genomirx @#aquasolutio...

[tenth-sentence]

In the same manner as hydroxyl, the nitrate radical is able to add to the double bond of olefins:

"Environmental Chemistry: A Global Perspective", 4e - Gary W. VanLoon & Stephen J. Duffy

[tenth-sentence]

Keep in mind also that hydroxyl production involves two photochemical steps.

"Environmental Chemistry: A Global Perspective", 4e - Gary W. VanLoon & Stephen J. Duffy

[alexanderrogge]

Xinhua - Glasses in Moon's soil preserve water from multiple sources:

BEIJING, May 11 (Xinhua) -- A team of Chinese scientists has discovered that glassy materials within

ChangE5 #Moon #Hydroxyl #Water #Glass #LunarSoil #ProtonImplantation #SolarWind #LunarExploration #SolarSystemScience #Astronomy #Mineralogy #Geology