Enhancing the resistance of single-atom and cluster catalysts in CO-SCR to water, sulfur, and oxygen via structural engineering

IF 13.2 1区工程技术 Q1 ENGINEERING, CHEMICAL

Chemical Engineering Journal Pub Date : 2024-11-03 DOI:10.1016/j.cej.2024.157326

Huanli Wang , Dianxing Lian , Mohaoyang Chen , Chenxi Li , Guiyao Dai , Shujun Hou , Botao Liu , Ke Wu , Guofeng Zhao , Weiwei Zhang , Yuxi Liu , Yongjun Ji

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引用次数: 0

Abstract

The selective catalytic reduction of NO by CO (CO-SCR) is regarded as a highly promising technology for the purification of industrial exhaust gas due to its ability to simultaneously eliminate two toxic and harmful gases. This review provides an overview of recent advances in the CO-SCR reaction, firstly exploring the multiple reaction pathways for the reduction of NO to N₂ by CO, and then analyzing in depth the multidimensional influence mechanisms of O₂, SO₂ and H₂O on this reaction. In addition, the structural control strategies to improve the resistance of noble- and non-precious metal-based single-atom and cluster catalysts to O₂, SO₂ and H₂O were discussed from the perspectives of particle size regulation, electronic structure control, and surface/interfacial structure modulation. Finally, the paper summarizes the current challenges of CO-SCR technology and provides detailed suggestions for future research directions, with the objective of enriching the design concepts for high-efficiency denitrification catalysts.

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通过结构工程提高 CO-SCR 中单原子和簇催化剂对水、硫和氧的耐受性

一氧化碳选择性催化还原一氧化氮（CO-SCR）能够同时消除两种有毒有害气体，因此被认为是一种极具前景的工业废气净化技术。本综述概述了 CO-SCR 反应的最新进展，首先探讨了 CO 将 NO 还原成 N2 的多种反应途径，然后深入分析了 O2、SO2 和 H2O 对该反应的多维影响机制。此外，还从粒度调控、电子结构调控、表面/界面结构调控等角度探讨了提高贵金属基和非贵金属基单原子和团簇催化剂抗 O2、SO2 和 H2O 能力的结构调控策略。最后，论文总结了当前 CO-SCR 技术面临的挑战，并对未来的研究方向提出了详细建议，旨在丰富高效脱硝催化剂的设计理念。

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来源期刊

Chemical Engineering Journal 工程技术-工程：化工

CiteScore

21.70

自引率

9.30%

发文量

6781

审稿时长

2.4 months

期刊介绍： The Chemical Engineering Journal is an international research journal that invites contributions of original and novel fundamental research. It aims to provide an international platform for presenting original fundamental research, interpretative reviews, and discussions on new developments in chemical engineering. The journal welcomes papers that describe novel theory and its practical application, as well as those that demonstrate the transfer of techniques from other disciplines. It also welcomes reports on carefully conducted experimental work that is soundly interpreted. The main focus of the journal is on original and rigorous research results that have broad significance. The Catalysis section within the Chemical Engineering Journal focuses specifically on Experimental and Theoretical studies in the fields of heterogeneous catalysis, molecular catalysis, and biocatalysis. These studies have industrial impact on various sectors such as chemicals, energy, materials, foods, healthcare, and environmental protection.