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Updated: Sep 11, 2025

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一个模板方法与相变为单原子和多原子催化剂的定制协调

Zhong-Shuai Zhu¹, Pengtang Wang¹, Haobo Li²

¹School of Chemical Engineering, The University of Adelaide, Adelaide, SA, Australia.

Nature communications

|August 16, 2025

概括

一种新方法使用NaCl作为模板,以创建具有可调节结构的单原子催化剂 (SAC). 这些多功能SAC显示出对环境清洁和能源应用的巨大希望.

科学领域:

材料科学材料科学材料科学
催化剂是一种催化剂.
纳米技术纳米技术

背景情况:

单原子催化剂 (SAC) 具有高活性和选择性,但在可扩展的合成和精确的结构控制方面面临挑战.
目前的方法与大规模生产和为特定的催化需求量身定制原子配置作斗争.

研究的目的:

开发一种简单,可扩展的战略,以大规模生产具有多种分子协调性的单金属和多金属SAC.
为了证明对原子配置的精确控制,包括平面内M-Nx (x=4或6) 和轴心M-Cl位点.
探索这些量身定制的SAC在环境和能源相关反应中的催化性能.

主要方法:

使用低成本,可回收的化 (NaCl) 作为绿色模板.
采用温度诱导的封闭和NaCl的相变来直接3D蜂形态.
通过控制实验和理论计算合成了25个不同的SAC和高性SAC的库.

主要成果:

实现了量身定制的SAC的质量产量,从18.3%到50.9%不等.
通过控制与NaCl点相对的温度,证明了不同协调 (M-Nx和M-Cl) 的SACs的成功合成.
确定了25种不同的单金属和多金属SAC,包括五种金属的高变体.

结论:

开发的NaCl模板方法使各种SAC的可扩展和精确合成成为可能.
这些新型SAC在水性有机氧化和电催化酸盐,二氧化碳和氧降解反应中表现出了显著的催化性能.
这些发现突出了这些定制的SAC在环境修复和能源技术方面取得重大进展的潜力.

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