oxide
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Nanotechnology
The road to new quantum devices: electrically defined quantum dots in zinc oxide
Structure of zinc oxide (ZnO) device. A two-dimensional electron gas (2DEG) is formed at the (Mg, Zn)O/ZnO interface. By applying voltage to the gate electrode, electrons can be confined within the quantum dot. (b) SEM image of the fabricated ZnO quantum dot device. Quantum dots are generated in the circled area. Credit: Quoted from Nature Communications (2024). DOI: 10.1038/s41467-024-53890-2 Researchers…
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Chemistry
Team synthesizes cost-effective and durable non-precious metal alloy as an alternative to iridium oxide anodes
Credit: Yoshikazu Ito Despite the growing importance of hydrogen as a future energy source, transporting gaseous hydrogen safely and on a large scale remains challenging. Researchers are exploring ways to transport hydrogen in the form of liquid methylcyclohexane (MCH) by reacting it with toluene. One such approach is organic hydride electrosynthesis. In this process, toluene is transferred from the cathode…
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Chemistry
Graphene oxide and chitosan sponges found to be 10 times more efficient at removing gold from electronic waste
SEM images of Au3+ extraction and reduction by GO/chitosan sponge. Au3+ is displayed in yellow. Credit: Kou Yan A team of chemists and materials scientists from the National University of Singapore, in collaboration with colleagues from the University of Manchester in the UK and Guangdong University of Technology in China, have developed a type of sponge made of graphene oxide…
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