催化作用
材料科学
热解
热喷涂
化学工程
热分解法
固溶体
Atom(片上系统)
纳米技术
冶金
化学
有机化学
薄膜
计算机科学
工程类
嵌入式系统
涂层
作者
Yaru Zheng,Ling Zhang,Hao Jiang,Chunzhong Li,Yanjie Hu
出处
期刊:Small
[Wiley]
日期:2024-02-02
标识
DOI:10.1002/smll.202311346
摘要
Single-atom catalysts (SACs) exhibit remarkable catalytic activity at each metal site. However, conventionally synthesized single-atom catalysts often possess low metal loading, thereby constraining their overall catalytic performance. Here, a flame spray pyrolysis (FSP) method for the synthesis of a single-atom catalyst with a high loading capacity of up to 1.4 wt.% in practice is reported. CeZrO2 acts as a carrier and provides a large number of anchoring sites, which promotes the high-density generation of Pd, and the strong interaction between the metal and the support avoids atom aggregation. Pd-CeZrO2 series catalysts have excellent CO oxidation performance. When 0.97 wt.% Pd is added, the catalytic activity is the highest, and the temperature can be reduced to 120 °C. This work presented here demonstrates that FSP, as an inherently scalable technique, allows for elevating the single-atom loading to achieve an increase in its catalytic performance. The method presented here more options for the preparation of SACs.
科研通智能强力驱动
Strongly Powered by AbleSci AI