Sentences with phrase «nickel atoms»

The researchers were mixing organic nitrogen - rich compounds with nickel atoms and water.

By scanning an electron probe over the sample, the scientists were able to visualize discrete nickel atoms on the graphene.

Researchers thought that the added nickel atoms were distributed evenly among the rows.

Red spheres represent platinum atoms and green spheres represent nickel atoms.

To make the nickel oxide coating, the researchers used a technique which involves smashing atoms of argon into a pellet of nickel atoms at high speed.

Based on the results from the studies at Harvard, NSLS - II, CFN, and additional institutions, the scientists discovered single nickel atoms catalyzed the CO2 conversion reaction with a maximal of 97 percent efficiency.

«Converting CO2 into usable energy: Scientists show that single nickel atoms are an efficient, cost - effective catalyst for converting carbon dioxide into useful chemicals.»

To get a closer look at the individual nickel atoms within the atomically thin graphene sheet, the scientists used scanning transmission electron microscopy (STEM) at Brookhaven's Center for Functional Nanomaterials (CFN), a DOE Office of Science User Facility.

If that field interacts with itself, then, as the infant universe expanded and cooled, the field may have taken on a value or «phase,» which would be a bit like the direction in which nickel atoms point.

Nickel atoms act like little magnets themselves, and below a certain temperature, neighboring atoms tend to point in the same direction, so that their magnetic fields reinforce one another.

High temperatures caused carbon to diffuse to the surface, where mobile nickel atoms catalyzed graphene growth on the edges of islands.

The researchers discovered that the unique manner in which the platinum and nickel atoms arrange themselves on the surfaces of these particles serves to optimally accelerate the chemical reaction between hydrogen and oxygen to form water.

«On the surface of nickelate, you have one nickel atom at the center of a square of four oxygen atoms,» Cooper said.

«However, we found the individual nickel atoms were distributed uniformly, which accounted for the excellent performance of the conversion reaction.»

Tetrahedra with a nickel atom at their centre are somewhat elongated due to the Jahn - Teller effect (green), while the tetrahedrons with a copper atom at their centre are compressed (blue).

«Photons, or particles of light, interact with the electrons in the nickel atoms to do two things,» Stavitski said.

In addition to the unique energetic properties of single atoms, the CO2 conversation reaction was facilitated by the interaction of the nickel atoms with a surrounding sheet of graphene.

In essence, this provided the scientists with an image of the nickel atoms» local structure.

The scientists could show that during fast charging, manganese and nickel atoms are leached from the crystal structure.

The technique incorporates some nickel atoms into the diamond's crystal structure, forming what is called an «S3 defect center.»

Oxygen from the air dissolves into the liquid and selectively etches away some of the nickel atoms.