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Ulsan National Institute of Science and Technology(UNIST)


New study reveals charge transfer at interface of spinel oxide and ceria during CO oxidation

A recent study has unveiled a new principle that active charge transfer at the interface between non-noble metals can enhance the catalytic performance of complex oxide catalysts. The researchers found that CeO2-deposited spinel oxide nanocubes exhibited a 12-times higher CO oxidation rate than pristine Co3O4 NCs.

Reactive boride infusion stabilizes ni-rich cathodes for lithium-ion batteries

A new coating technology has been developed to stabilize Ni-rich cathodes in lithium-ion batteries, improving cycling stability and capacity retention. The technique involves infusing a cobalt boride metallic glass into the grain boundaries of the cathode material, resulting in improved electrochemical performance and safety.

Researchers present spontaneous sparse learning for PCM-based memristor neural networks

A team of researchers from UNIST developed a new learning method for PCM-based memristor neural networks, improving their learning ability by about 3% in handwriting classification tasks. The approach leverages the 'resistance drift' property of phase-change memory to update synapses and associate patterns with data.

New study presents stretchable and colorless solar cells, using Si microwire composites

Researchers at UNIST have developed flexible and transparent solar cells that can absorb reflected light, increasing their efficiency. The new solar cell structure takes advantage of the theoretical light absorption mechanism to recycle reflected light, enabling it to maintain over 95% initial efficiency even after bending tests.