Nano-copper and nano-gold combine to form effective CO2 converter


Researchers have combined gold nanoparticles (in light red) with copper nanoparticles (in light green) to form hybrid nanoparticles (dark red), which they turned into powder (foreground) to catalyze carbon dioxide reduction (credit Zhichuan Xu)

Copper — the stuff of pennies and tea kettles — is also one of the few metals that can turn carbon dioxide into hydrocarbon fuels with relatively little energy. When fashioned into an electrode and stimulated with voltage, copper acts as a strong catalyst, setting off an electrochemical reaction with carbon dioxide that reduces the greenhouse gas to methane or methanol.

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Using gold nanoparticles to recover old fingerprints

Fingerprinting is one of the essential techniques of modern-day forensic science. Be that as it may, only a fraction of fingerprints can actually be detected using traditional powdering and cyanoacrylate fuming. But now, using gold nanoparticles, even year-old evidence can … Continue reading