固态合成无铅过氧化物 Cs3Bi2Br9，用于光催化 O2 参与的醛或醇与酸酐的偶联反应

IF 6.5 1区化学 Q2 CHEMISTRY, PHYSICAL

Journal of Catalysis Pub Date : 2024-09-14 DOI:10.1016/j.jcat.2024.115750

Qiangwen Fan , Dawei Liu , Yuan Hu , Qiuyun Huang , Saijin Xiao , Huijun Ren , Haibo Zhu , Zongbo Xie

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引用次数: 0

摘要

本文开发了一种绿色高效的策略，在温和条件下通过固态机械化学工艺制备无铅包晶 Cs3Bi2Br9，研究了转速、研磨持续时间和球粉比对 Cs3Bi2Br9 动力形成的影响。评估了制备的 Cs3Bi2Br9 功率的光催化性能，以 O2 为唯一氧化剂，催化各种醛或醇与酸酐的氧化偶联。此外，还根据系列活性物种捕获实验提出了可能的反应机理。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Solid-state synthesis of lead-free perovskite Cs3Bi2Br9 for photocatalytic O2-involved coupling of aldehydes or alcohols to anhydrides

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Solid-state synthesis of lead-free perovskite Cs3Bi2Br9 for photocatalytic O2-involved coupling of aldehydes or alcohols to anhydrides

Herein, a green and highly efficient strategy was developed to fabricate lead-free perovskite Cs₃Bi₂Br₉ through solid-state mechanochemical process under mild conditions, wherein the effects of rotation speed, grinding duration and ball-to-powder ratio on the formation of Cs₃Bi₂Br₉ powers were investigated. The photocatalytic performance of the as-prepared Cs₃Bi₂Br₉ powers was evaluated for catalyzing oxidative coupling of various aldehydes or alcohols to anhydrides using O₂ as the sole oxidant. Furthermore, a probable reaction mechanism was proposed basing on series active species capture experiments.

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来源期刊

Journal of Catalysis 工程技术-工程：化工

CiteScore

12.30

自引率

5.50%

发文量

447

审稿时长

31 days

期刊介绍： The Journal of Catalysis publishes scholarly articles on both heterogeneous and homogeneous catalysis, covering a wide range of chemical transformations. These include various types of catalysis, such as those mediated by photons, plasmons, and electrons. The focus of the studies is to understand the relationship between catalytic function and the underlying chemical properties of surfaces and metal complexes. The articles in the journal offer innovative concepts and explore the synthesis and kinetics of inorganic solids and homogeneous complexes. Furthermore, they discuss spectroscopic techniques for characterizing catalysts, investigate the interaction of probes and reacting species with catalysts, and employ theoretical methods. The research presented in the journal should have direct relevance to the field of catalytic processes, addressing either fundamental aspects or applications of catalysis.