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Duke Awards Tenure to Faculty Members | Duke Faculty Advancement

Radiolabeling for the Development of Nanomedicinal Drugs

Samara Polytech participates in the creation of new catalysts

Researchers report first direct observation of anionic redox in a lithium-rich battery material

Conventional Li-ion batteries work by cationic redox, when a metal ion changes its oxidation state as lithium is inserted or removed. Within this insertion framework, only one lithium-ion can be stored per metal ion. Lithium-rich cathodes, however, can store much more. Researchers attribute this to the anionic redox mechanism in this.

Professor Doug Stephan | 2021 Centenary Prize winner

Professor Doug Stephan The pandemic has taught us that when people socially distance, they can still interact with each other, but in ways that are not the same as when they can get together. This same principle is true for molecules. Fifteen years ago, Professor Stephan s research revealed that, by limiting the approach of molecules that normally interact strongly, it is possible to access previously unknown regimes of chemical reactivity. Such combinations of molecules were given the moniker frustrated Lewis pairs (FLPs) . This concept dislodged the long-held chemical dogma that industrial processes hinge on the chemistry of metals and unveiled metal-free catalyst technologies. This opens the door to the greening of chemical and material production processes and has influenced research groups around the world. Professor Stephan s research continues to explore the range of systems that behave as FLPs, targeting new ways to reduce energy consumption, remediate greenhouse gases a