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通过协调聚合物的动态晶体结构过渡,合成具有反应性氧物种清除活性的单原子催化剂

Suo-Su Wei¹, Shengfeng Zhang², Zhong Xu³

¹Department of Scientific Cooperation of Guangxi Academy of Medical Sciences, People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530000, P. R. China.

Materials horizons

|September 18, 2025

概括

一种新的方法通过使用溶剂转化协调聚合物 (CP) 来合成单原子催化剂 (SAC). 这种方法精确地控制了催化剂结构,增强了ROS清理,以加速糖尿病小鼠的伤口愈合.

科学领域:

催化剂是一种催化剂.
材料科学材料科学材料科学
纳米技术纳米技术

背景情况:

单原子催化剂 (SAC) 提供高原子效率,但面临金属聚合等合成挑战.
传统的方法难以精确控制载体结构,通常涉及恶劣的条件.

研究的目的:

开发一种突破性的策略,用于将SAC与受控载体结构合成.
为了克服传统SAC合成方法的局限性.
探索合成SACs在减轻氧化应激和促进伤口愈合方面的应用.

主要方法:

利用由溶剂H2O驱动的协调聚合物 (CPs) 的动态结构转换.
实现了一步合成过程,涉及CP晶体结构转换 (2D到1D) 和形态演变 (批量到纳米片).
控制的Cu-O键断裂和Cu协调中心的减少,以在没有高温处理的情况下将SAC在CP衍生的载体上.

主要成果:

通过一阶段的溶剂驱动工艺,成功合成了在CP衍生载体上固定的单原子催化剂.
精确控制载体结构和形态,避免金属聚合和载体结晶性破坏.
合成的SAC表现出异常的活性氧物种 (ROS) 清理能力.

结论:

拟议的战略通过利用溶剂反应性CP动态为SAC合成提供了一种新且可控的方法.
合成的SAC显示出缓解氧化应激的显著潜力.
这项研究强调了这些SACs在糖尿病小鼠模型中的加速伤口愈合效果.

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