Cryo-imaging lifts the lid on fuel cell catalyst layers

Proton-exchange membrane fuel cells (PEMFC), which are being developed for use in electric vehicles, rely on nanoparticles called catalysts to trigger electricity-producing reactions between hydrogen and oxygen. Most PEMFC catalysts contain platinum—a scarce and precious metal. There is therefore a pressing global need to develop catalysts that can generate the most power while minimizing platinum …

ChatGPT is still no match for humans when it comes to accounting

ChatGPT faced off against students on accounting assessments. Students scored an overall average of 76.7%, compared to ChatGPT’s score of 47.4%. On a 11.3% of questions, ChatGPT scored higher than the student average, doing particularly well on AIS and auditing. But the AI bot did worse on tax, financial, and managerial assessments, possibly because ChatGPT …