Saman Moniri

Jul 7, 2024 | nature.com | Yao Yang |Jihan Zhou |Zipeng Zhao |Geng Sun |Saman Moniri |Colin Ophus | +9 more

AbstractHeterogeneous nanocatalysts play a crucial role in both the chemical and energy industries. Despite substantial advancements in theoretical, computational and experimental studies, identifying their active sites remains a major challenge. Here we utilize atomic electron tomography to determine the three-dimensional atomic structure of PtNi and Mo-doped PtNi nanocatalysts for the electrochemical oxygen reduction reaction.

Dec 20, 2023 | nature.com | Saman Moniri |Yao Yang |Jun Ding |Long Yang |Liangbing Hu |Peter Ercius

AbstractMedium- and high-entropy alloys (M/HEAs) mix several principal elements with near-equiatomic composition and represent a model-shift strategy for designing previously unknown materials in metallurgy1,2,3,4,5,6,7,8, catalysis9,10,11,12,13,14 and other fields15,16,17,18. One of the core hypotheses of M/HEAs is lattice distortion5,19,20, which has been investigated by different numerical and experimental techniques21,22,23,24,25,26.