Surface (dis)order sleuthing

IF 42.8 1区化学 Q1 CHEMISTRY, PHYSICAL

Nature Catalysis Pub Date : 2024-11-21 DOI:10.1038/s41929-024-01271-9

Marçal Capdevila-Cortada

引用次数: 0

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表面（不）秩序调查

现在，加州大学欧文分校的 Plamen Atanassov 及其同事介绍了一种基于氧 1s X 射线光电子能谱评估表面结晶程度的简单方法（注意表面区域是由该技术的穿透深度定义的）。研究人员提出了 μ1-O(H) 和 μ2-O(H) 缺陷氧物种峰强度之间的比率作为表面结晶度的描述指标，数值越高，结晶度越低。μ1/μ2描述符得出的结果可以用μ3-O物种的强度来补充，μ3-O物种对应于金红石晶体块体结构中的非缺陷氧。此外，所提出的描述符与更常见的基于 Ir 4f 光谱中 IrIII 和 IrIV 峰比例的描述符具有可比性。最后，研究人员表明，对于目前这组商用催化剂而言，表面结晶度与 0.1 M HClO4 中固有的水氧化活性之间不存在相关性。

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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来源期刊

Nature Catalysis Chemical Engineering-Bioengineering

CiteScore

52.10

自引率

1.10%

发文量

140

期刊介绍： Nature Catalysis serves as a platform for researchers across chemistry and related fields, focusing on homogeneous catalysis, heterogeneous catalysis, and biocatalysts, encompassing both fundamental and applied studies. With a particular emphasis on advancing sustainable industries and processes, the journal provides comprehensive coverage of catalysis research, appealing to scientists, engineers, and researchers in academia and industry. Maintaining the high standards of the Nature brand, Nature Catalysis boasts a dedicated team of professional editors, rigorous peer-review processes, and swift publication times, ensuring editorial independence and quality. The journal publishes work spanning heterogeneous catalysis, homogeneous catalysis, and biocatalysis, covering areas such as catalytic synthesis, mechanisms, characterization, computational studies, nanoparticle catalysis, electrocatalysis, photocatalysis, environmental catalysis, asymmetric catalysis, and various forms of organocatalysis.