近日，韩国首尔国立大学Jungwon Park团队研究了强负载铂团簇催化性能与原子数的关系。这一研究成果于2026年5月28日发表在《科学》杂志上。

由数十个原子组成的金属簇结构代表了一类新型催化剂，与传统催化剂相比，它们可能具有更优异的催化活性和耐久性。然而，控制簇中组成原子的数量并在载体上实现高密度负载仍然具有挑战性。

研究组利用甲醇还原 PtCl₄^2-，生成铂原子，并在氧化铝的特定表面上形成锚定牢固、原子数可控的铂簇。研究组解析了铂簇的原子结构，并能够将簇-载体相互作用的强度、催化活性和耐久性与原子数关联起来。通过开发用于环烃氢载体脱氢制氢的铂簇，研究组展示了该方法的潜力——据其所知，这些铂簇在单位铂用量下实现了迄今报道的最高催化性能。

附：英文原文

Title: Dependence of catalytic properties of strongly supported platinum clusters with atom counts

Author: 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

Issue&Volume: 2026-05-28

Abstract: 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 PtCl42 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.

DOI: aeb3087

Source: https://www.science.org/doi/10.1126/science.aeb3087