近日，复旦大学程晓维团队揭示了三元相互作用平衡实现顺序组装合成层次介孔氢氧化金属纳米颗粒。2025年7月29日出版的《美国化学会志》发表了这项成果。

具有空间正交层次介孔结构的材料由于双峰孔的协同整合而表现出有趣的物理和化学性质。通过多个软模板引入额外尺寸的孔隙度是非常灵活的，但对于金属氢氧化物材料来说，这仍然是一个挑战。

研究组报道了一种三元相互作用平衡的顺序组装（TESA）策略，以构建具有可调形貌的分层介孔氢氧化金属（HM-M）纳米颗粒。这种简单的制造涉及到一个顺序的组装过程，包括异质成核和单束组装，在此过程中，需要在三元界面上对表面张力进行调节。

金属前驱体、小表面活性剂和嵌段共聚物之间的平衡可以扩展到具有各种形态和成分的HM-M纳米颗粒，这些纳米颗粒在催化、传感和能量方面具有巨大的潜力。该研究不仅为新型高分子材料的合成提供了一个通用的平台，还为研究装配过程中的多组分相互作用提供了新的见解和灵感。

附：英文原文

Title: Ternary Interactions Balance Enabled Sequential Assembly toward the Synthesis of Hierarchically Mesoporous Metal Hydroxide Nanoparticles

Author: Yuanzhao Xie, Wenhe Xie, Jiarong Li, Yonghui Deng, Xiaowei Cheng

Issue&Volume: July 29, 2025

Abstract: Materials with spatially orthogonal hierarchically mesoporous structures exhibit intriguing physical and chemical properties due to the synergistic integration of bimodal pores. The introduction of porosity with an extra dimension via multiple soft templates is highly flexible, but it remains a challenge for metal hydroxide materials. Here, we report a ternary interaction balance-enabled sequential assembly (TESA) strategy to construct hierarchically mesoporous metal hydroxide (HM-M) nanoparticles with tunable morphologies. This facile fabrication involves a sequential assembly process, including heterogeneous nucleation and monomicelle assembly, during which ingenious regulations on surface tension at the ternary interface are required. The balance among metal precursors, small surfactants, and block copolymers can be extended to obtain HM-M nanoparticles with various morphologies and compositions that possess enormous potential in catalysis, sensing, and energy. This study not only provides a versatile synthesis platform for novel HM-M materials but also offers new insights and inspiration for investigating multicomponent interactions during the assembly process.

DOI: 10.1021/jacs.5c06417

Source: https://pubs.acs.org/doi/abs/10.1021/jacs.5c06417