Lab celebrates a year of scientific successes, from creating the biggest bits of antimatter to improving qubits, catalysts, batteries, and more!
UPTON, N.Y. — With one-of-a-kind research facilities leveraged by scientists from across the nation and around the world, the U.S. Department of Energy’s (DOE) Brookhaven National Laboratory is a veritable city of science. Each year brings discoveries, from the scale of subatomic particles to the vastness of Earth’s atmosphere and the cosmos, that have the potential to power new technologies and provide solutions to major societal challenges. Here, the Lab presents, in no particular order, its top 10 discoveries of 2024 … plus a few major Brookhaven Lab milestones.
Heaviest antimatter nucleus
Antimatter sounds exotic, but it really does exist — just not for long. This year, scientists studying collisions of atomic nuclei at the Relativistic Heavy Ion Collider (RHIC) — an “atom smasher” that recreates the conditions of the early universe — discovered the heaviest antimatter nucleus ever detected. It’s composed of four antimatter particles: an antiproton, two antineutrons, and a particle called an antihyperon. It lasts only a fraction of a second before decaying into other particles. To find it, physicists from RHIC’s STAR collaboration searched through particles streaming from billions of collisions to find just 16 of the rare “antihyperhydrogen-4” particles. There used to be lots of antimatter, back when the universe first formed, but when antimatter meets ordinary matter, the two self-destruct. The ability to create new antimatter particles today, like these heavy antimatter nuclei, gives scientists new ways to test for matter-antimatter differences that might explain why the universe is made only of matter.
Low-temp, direct conversion of natural gas to liquid fuel
Brookhaven Lab chemists engineered a highly selective catalyst that can convert methane, a major component of natural gas, into methanol, an easily transportable liquid fuel, in a single, one-step reaction. This direct process for methane-to-methanol conversion runs at a temperature lower than required to make tea and exclusively produces methanol without additional byproducts. That’s a big advance over more complex traditional conversions that typically require three separate reactions, each under different conditions, including vastly higher temperatures. The simplicity of the system could make it particularly useful for tapping “stranded” natural gas reserves in isolated rural areas, far from the costly infrastructure of pipelines and chemical refineries, and without the need to transport high-pressure, flammable liquified natural gas. The team made use of tools at two DOE Office of Science user facilities at Brookhaven Lab, the Center for Functional Nanomaterials and the National Synchrotron Light Source II. They are exploring ways to work with entrepreneurial partners to bring the technology to market.
Plants’ sugar-sensing machinery
Proteins are molecular machines, with flexible pieces and moving parts. Understanding how these parts move helps scientists unravel the function that a protein plays in living things — and potentially how to change its effects. This year, a team led by Brookhaven Lab biochemists working with colleagues from DOE’s Pacific Northwest National Laboratory discovered how protein machinery in plants controls whether the plants can grow and make energy-intensive products such as oil — or instead put in place a series of steps to conserve precious resources. The researchers showed how the molecular machinery is regulated by a molecule that rises and falls with the level of sugar, the product of photosynthesis and plants’ main energy source. The research could help identify proteins or parts of proteins that scientists could engineer to make plants that produce more oil for use as biofuels or other oil-based products.
Protecting a promising qubit material
Tantalum is a superconducting material that shows great promise for building qubits, the basis of quantum computers. This year, a team that spans multiple Brookhaven departments discovered that adding a thin layer of magnesium improves tantalum by keeping it from oxidizing. The coating also improves tantalum’s purity and raises the temperature at which it operates as a superconductor. All three effects may increase tantalum’s ability to hold onto quantum information in qubits. This work was carried out as part of the Co-design Center for Quantum Advantage, a Brookhaven-led National Quantum Information Science Research Center, and included scientists from the Lab’s Condensed Matter Physics & Materials Science Department, Center for Functional Nanomaterials, and National Synchrotron Light Source II, as well as theorists at DOE’s Pacific Northwest National Laboratory. It built on earlier work that also included scientists from Princeton University.
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