Dependence of catalytic properties of strongly supported platinum clusters with atom counts
- Chyan Kyung Song
- Junhyeok Jung
- Shyama Charan Mandal
- Sungsu Kang
- Tae Yong Kim
- Chan Kim
- Gyeongrok Jang
- Hyungjoo Kim
- Younhwa Kim
- Kyung Rok Lee
- Ji Soo Kim
- Junjie Chen
- Yongmin Kim
- Chang Won Yoon
- Thomas F. Jaramillo
- Matteo Cargnello
- Frank Abild-Pedersen
- Jungwon Park
2026-05-28
Metal cluster structures composed of tens of atoms represent a new class of catalysts with potentially superior catalytic activity and durability compared with those of other conventional catalysts. However, controlling the number of constituent atoms in clusters and achieving high-density loading on supports remain challenging. We reduce PtCl 4 2− with methanol to create platinum atoms forming strongly anchored platinum clusters with controlled atom counts on selected surfaces of alumina. We resolved the atomic structures of the platinum clusters and could correlate the degree of cluster-support interaction, catalytic activity, and durability with atom counts. We demonstrate the promise of this approach by developing platinum clusters that exhibit the highest catalytic performance per platinum usage reported to date for hydrogen production from the dehydrogenation of cyclic hydrocarbon hydrogen carriers.