Almost exactly 200 years ago, French physicist Sadi Carnot determined the maximum efficiency of heat engines. The Carnot ...

For two centuries, students have learned that heat flows and engines work according to rigid limits that no machine can beat.

A joint research team from the Institute of Metal Research (IMR) of the Chinese Academy of Sciences and the Songshan Lake Materials Laboratory has achieved precise control and real-time observation of ...

(Nanowerk Spotlight) At the scale of individual atoms, materials behave in ways that defy everyday intuition. Stretch a metal wire by a few micrometers and its resistance changes only slightly.

Atomic-scale design of platinum catalysts significantly increases fuel cell efficiency, with a new study showcasing record ...

Yue-Hui Li, Rui-Shi Qi, Ruo-Chen Shi, Jian-Nan Hu, Zhe-Tong Liu, Yuan-Wei Sun, Ming-Qiang Li, Ning Li, Can-Li Song, Lai Wang, Zhi-Biao Hao, Yi Luo, Qi-Kun Xue, Xu-Cun Ma, Peng Gao Proceedings of the ...

This schematic illustrates how atomic-scale Ni catalysts embedded in a porous graphene matrix address key challenges in Li–O₂ batteries. By simultaneously enhancing cathode reaction kinetics and ...