通过高熵策略调节晶格应变场,实现过氧化物的保形生长以实现高效的氧进化

IF 20.2 1区 化学 Q1 CHEMISTRY, PHYSICAL Applied Catalysis B: Environmental Pub Date : 2023-12-27 DOI:10.1016/j.apcatb.2023.123668
Zijin Xu , Zhengyan Du , Runlin Zhang , Fanda Zeng , Zeshuo Meng , Xiaoying Hu , Hongwei Tian
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引用次数: 0

摘要

透镜氧化物因其低成本和可定制的特性,在水电解领域大有可为。然而,它们的性能受到晶体团聚的严重制约。本文报告了一种调节晶格应变场的高熵策略,赋予晶体高能垒并优化其表面特性,以实现高活性过氧化物的保形生长。通过一系列表征方法和理论计算,研究了晶格畸变引起的复杂晶格应变场和鸡尾酒效应的有效激活策略。在此基础上,制得的棒状 La(CoFeNiCrAl)O3 (La5B-Al) 在 1 M KOH 中 10 mA cm-2 的过电位仅为 285 mV。这项工作提供了一种利用晶格应变场调节催化剂生长的新策略,并阐明了高熵效应与材料特性之间的关系。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

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Regulating the lattice strain field by high-entropy strategy to realize the conformal growth of perovskites for efficient oxygen evolution

Perovskite oxides show great promise in the field of water electrolysis due to their low cost and tailorable properties. However, their performance is seriously constrained by crystal agglomeration. Herein, a high-entropy strategy is reported to regulate the lattice strain field, endowing the crystal with a high energy barrier and optimizing its surface properties to achieve conformal growth of highly reactive perovskite oxides. A range of characterization methods and theoretical calculations are used to investigate the lattice distortion-induced complex lattice strain field and the effective activation strategy of the cocktail effect. Based on this, the produced rod-like La(CoFeNiCrAl)O3 (La5B–Al) exhibits a low overpotential of 285 mV at 10 mA cm−2 in 1 M KOH. This work provides a novel strategy to use the lattice strain field for regulating the growth of catalysts and clarifies the relationship between high-entropy effects and material properties.

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来源期刊
Applied Catalysis B: Environmental
Applied Catalysis B: Environmental 环境科学-工程:化工
CiteScore
38.60
自引率
6.30%
发文量
1117
审稿时长
24 days
期刊介绍: Applied Catalysis B: Environment and Energy (formerly Applied Catalysis B: Environmental) is a journal that focuses on the transition towards cleaner and more sustainable energy sources. The journal's publications cover a wide range of topics, including: 1.Catalytic elimination of environmental pollutants such as nitrogen oxides, carbon monoxide, sulfur compounds, chlorinated and other organic compounds, and soot emitted from stationary or mobile sources. 2.Basic understanding of catalysts used in environmental pollution abatement, particularly in industrial processes. 3.All aspects of preparation, characterization, activation, deactivation, and regeneration of novel and commercially applicable environmental catalysts. 4.New catalytic routes and processes for the production of clean energy, such as hydrogen generation via catalytic fuel processing, and new catalysts and electrocatalysts for fuel cells. 5.Catalytic reactions that convert wastes into useful products. 6.Clean manufacturing techniques that replace toxic chemicals with environmentally friendly catalysts. 7.Scientific aspects of photocatalytic processes and a basic understanding of photocatalysts as applied to environmental problems. 8.New catalytic combustion technologies and catalysts. 9.New catalytic non-enzymatic transformations of biomass components. The journal is abstracted and indexed in API Abstracts, Research Alert, Chemical Abstracts, Web of Science, Theoretical Chemical Engineering Abstracts, Engineering, Technology & Applied Sciences, and others.
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