Two Cornell faculty members have been elected fellows of the American Association for the Advancement of Science (AAAS), the world’s largest general scientific society.The Cornell electees are Lara Estroff, chair of the Department of Materials Science and Engineering and the Herbert Fisk Johnson Professor of Industrial Chemistry in Cornell Duffield College of Engineering; and Klaas van Wijk, professor in the School of Integrative Plant Science, Plant Biology Section, in the College of Agriculture and Life Sciences.

A high acid environment is great for a snappy hydrogen oxidation reaction – the reaction at the heart of a clean-energy fuel cell. The problem is the only catalysts that won’t dissolve in the high acid of traditional fuel cells are precious metals – platinum, palladium and the like – and they are very expensive. To advance fuel cell technologies and lower their cost, the Abruña and Muller Groups at Cornell and other researchers in the Center for Alkaline-based Energy Solutions (CABES) work on fuel cells in alkaline, or nonacidic, environments. They have developed a nonprecious metal catalyst – nickel coated with carbon – that works well in alkaline media, maintaining a strong hydrogen oxidation reaction activity.

Preserving quantum information is key to developing useful quantum computing systems. But interacting quantum systems are chaotic and follow laws of thermodynamics, eventually leading to information loss. Physicists have long known of a strange exception, called dynamical freezing, when quantum systems shaken at precisely tuned frequencies evade these laws. But how long can this phenomenon postpone thermodynamics? Not forever, but for an astonishingly long time, Cornell physicists have determined, giving the first quantitative answer.

For his contributions to developing the highest resolution electron microscope in the world, David Muller, the Samuel B. Eckert Professor in the School of Applied and Engineering Physics at the Cornell Duffield College of Engineering, has been elected to the National Academy of Engineering.

Kavli co-director David Muller and Lena Kourkoutis devised a new method, called tilt-corrected bright-field scanning transmission electron microscopy (tcBF-STEM), to image thick samples with higher contrast and a fivefold increase in efficiency.The new method, which was conducted at cryogenic temperatures but is not limited to them, can create images inside intact bacterial cells and large organelle up to 500-800 nanometers thick - an improvement of roughly a factor of five. Potential applications could range from discovering the elusive function of proteins to imaging lithium-ion batteries, which, like biological materials, are extremely sensitive to radiation.

For decades, ferromagnetic materials have driven technologies like magnetic hard drives, magnetic random access memories and oscillators. But antiferromagnetic materials, if only they could be harnessed, hold out even greater promise: ultra-fast information transfer and communications at much higher frequencies – a “holy grail” for physicists.

From soft robots crawling through crops to bio-based fertilizers that protect waterways, the future of farming lies at the intersection of scientific disciplines, according to a new study describing how agriculture’s toughest challenges require coordinated breakthroughs in biology, chemistry, engineering and data science.

A team at Cornell has for the first time identified exactly what happens when a microbe receives an electron from a quantum dot: The charge can either follow a direct pathway or be transferred indirectly via the microbe’s shuttle molecules.

An advanced imaging technique developed at Cornell has revealed the first two-dimensional, mechanically interlocked polymer – confirming a breakthrough in both material design and electron microscopy.

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