Search results for atomic engineering

Analytical Chemistry Sep 1, 2023

Chemical engineers draft a roadmap for research into metallic 'sponges' for clean hydrogen

Metal organic frameworks (MOFs) could deliver a major efficiency boost to the photocatalytic production of clean hydrogen. Chemical engineers have drafted a comprehensive overview of the state of their field and a plan for ...

Analytical Chemistry Aug 28, 2023

Quantum computer unveils atomic dynamics of light-sensitive molecules

Researchers at Duke University have implemented a quantum-based method to observe a quantum effect in the way light-absorbing molecules interact with incoming photons. Known as a conical intersection, the effect puts limitations ...

Biochemistry Aug 27, 2023

Bioactive near-infrared II clusters for 3D imaging and acute inflammation inhibition

The bioactivity of most near-infrared II (NIRII) fluorophores are limited, thereby conflicting the achievement of strong fluorescence and high catalytic activities, due to a lack of free electrons in the method.

General Physics Aug 24, 2023

The race to build the world's smallest atomic clock, again

Yuan-Yu Jau is on a quest to build the world's smallest atomic clock, a device that measures time with extreme accuracy. If successful, he and his team at Sandia will have made one smaller than a sugar cube.

Analytical Chemistry Aug 15, 2023

Constructing PtFe alloy catalysts through hybrid mesoporous Fe-N-C nanostructure

Pt-based intermetallic alloys with high activity and stability are promising for accelerating the cathodic oxygen reduction reaction (ORR) and large-scale application of proton exchange membrane fuel cells.

Space Exploration Aug 14, 2023

An improved radioisotope thermoelectric generator could dramatically reduce the weight of interplanetary missions

Radioisotope thermoelectric generators (RTGs) are the power plants of the interplanetary spacecraft. Or at least they have been for going on 50 years now. But they have significant drawbacks, the primary one being that they're ...

Nanophysics Aug 14, 2023

Uncovering the local atomic structure of zeolite using optimum bright-field scanning transmission electron microscopy

Zeolites have unique porous atomic structures and are useful as catalysts, ion exchangers and molecular sieves. It is difficult to directly observe the local atomic structures of the material via electron microscopy due to ...

Nanophysics Aug 8, 2023

Advancing 2D materials: Achieving the goal with UV-assisted atomic layer deposition

In 2004, the public first became acquainted with graphene- a remarkably thin, flexible, and electrically conductive material possessing considerable strength. However, harnessing graphene's potential as a component has presented ...

Nanophysics Aug 4, 2023

Researchers may have solved the 'mirror twins' defect plaguing the next generation of 2D semiconductors

The next generation of 2D semiconductor materials doesn't like what it sees when it looks in the mirror. Current synthesizing approaches to make single-layer nanosheets of semiconducting material for atomically thin electronics ...

Nanophysics Aug 2, 2023

Nanoelectromechanical resonators based on hafnia–zirconia–alumina superlattices with gigahertz spectrum coverage

Newly developed atomic engineering techniques have opened exciting opportunities for enabling ferroelectric behavior in high-k dielectrics, materials that have a high dielectric constant (i.e., kappa or k) compared to silicon. ...

page 22 from 40