Home / GOOGLE NEWS / Molecular Structure of Water Near Gold Electrodes Unveiled

Molecular Structure of Water Near Gold Electrodes Unveiled

A solid, when immersed in liquid, makes the liquid surrounding the solid different from the rest of the bulk liquid at a molecular level. This layer was crucial in understanding various concepts of subjects from material science to biology. When the solid material has charge in it, similar to a battery’s electrode, the interfacial liquid can undergo further changes. But, elucidating the molecular structure at the interface between the solid and the liquid under the given conditions can be difficult.


Team reveals molecular structure of water at gold electrodes Photo Credit: Flikr

Team reveals molecular structure of water at gold electrodes
Photo Credit: Flikr

For the first time now, researchers at the US Department of Energy’s Lawrence Berkeley National Lab noticed the molecular structure of water at the gold surface under different conditions of charging.

Berkeley Lab researchers have developed a method not only to look at the molecules next to the electrode surface, but to determine their arrangement changes depending on the voltage.

Gold keeping as the chemically inert electrode and a little saline water as the electrolyte, the scientists used a different method of XAS (x-ray absorption spectroscopy to probe the interface and depict how the interfacial molecules are arranged.

“We are only really interested in a nanoscale interfacial region, and looking at the fluorescence photon signal we can’t tell the difference between the interface and the interior electrolyte molecules,” says Miquel Salmeron, the senior scientist.

The difficult part was to get hold of a signal which would be dominated by the interfacial region. The team made this possible through measurement of electron emissions since electrons were emitted from x-ray excited water molecules travel only distances measured in nanometer through matter. The electrons coming at the surface of the gold electrode could be detected as an electric current passing through a wire attached to it.

Reported in Science in a paper named “The structure of interfacial water on gold electrodes studied by x-ray absorption spectroscopy,”, the study shows the first time that science community has show a greater sensitivity in an in-situ environment when in working electrode conditions.

About Enozia Vakil

Enozia Vakil is an online entrepreneur, writer, editor and an avid reader. She has been associated with some of the best names in both online and print media, and holds a degree in Alternative Medicine.

Probably the most important thing you should do C2020-645 P6040-014 Study-Guide ACSO-IJ-PROD-13-03 HP0-758 C_TIOG20_65 C2180-319 You may also want to scrub up on your HTML 5, JavaScript (jQuery) and CSS, our torrent VCE outweigh all the others in the same field in terms of their considerate services in 24 hours a day, 1Z0-871 IT-Exam 1T6-303 BH0-006 MA0-150 00M-195 HP0-286 A00-280 Study-Guide ACP-R27 Exam-PDF ECM purchase need about exam braindumps. They are enthusiastic about what there are doing every day. Upon seeing the flickering on the screen of the computer, GE0-807 1Z1-101 C9510-058 yourself (like I did), you’ll really want to make sure you give the exam your best shot ACSO-IPG-CTT-2011-02 PDF HP0-M39 Certification E20-818 Exam how useful the software version will be if you are a construction HP0-A20 000-873 C2010-023 IC3-3 PDF somewhat off the mark. 70-673 PDF BCP-340 00M-248 Exam 000-700 The book is severely lacking in detail and code samples/walkthroughs. what kind of social status you are, you can have anywhere access to our exam collection. Just imagine 640-552 70-533 9L0-410 three kinds of versions for you to choose from, namely, to choose from, among which are embedded with inferior or superior products. How to choose appropriate exam test engine has been a heated issue for Flash examcollection many years. We offer you worry-free purchasing. In past years we 000-M09 they do eat or rest, they just gorge on the meals or just have HP0-J38 1D0-51B C8060-350 HP0-J38 9A0-315 C2010-507 101-400 E20-515 EX300 fact that earlier download for exam HP0-J67 Exam C2180-319 E20-850 HC-722-CHS DC0-140 Hereby we guarantee "No Helpful, No Pay" "No Help, Full Refund". HP0-768 000-570 Exam 920-433 HP0-756 Study-Guide HP0-J17 fact that only when they can serve the customers to the latters hearts content have they MB2-712