扫描透射X射线光谱显微镜：一种用于探测太阳水分解赤铁矿纳米棒的纳米工具

IF 1.8 4区物理与天体物理 Q2 SPECTROSCOPY

Journal of Electron Spectroscopy and Related Phenomena Pub Date : 2023-05-01 DOI:10.1016/j.elspec.2023.147334

Stefan Stanescu , Dana Stanescu , Adam Hitchcock

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引用次数: 0

摘要

我们报道了一种扫描透射x射线显微镜(STXM)对赤铁矿纳米棒的研究，赤铁矿纳米棒是用于太阳能水分解的原型光阳极。以FeCl3为前驱体，水热法制备了赤铁矿纳米棒。与通过外延生长获得的赤铁矿光阳极相比，使用这种合成方法产生的水分裂电位更小。STXM显示纳米棒表面存在六水氯化铁相，这与低起始电位值有关。我们详细的量化方法揭示了个别赤铁矿纳米棒的具体微观结构。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Scanning transmission X-ray spectromicroscopy: A nanotool to probe hematite nanorods for solar water splitting

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Scanning transmission X-ray spectromicroscopy: A nanotool to probe hematite nanorods for solar water splitting

We report a scanning transmission X-ray microscopy (STXM) study of hematite nanorods, prototypical photoanode used in solar water splitting. Hematite nanorods were obtained by hydrothermal growth from aqueous solutions using FeCl₃ as precursor. Potentials for onset of water splitting are smaller using this synthesis method, compared to values reported for hematite photoanodes obtained by epitaxial growth. STXM revealed the presence of a hexahydrate iron chloride phase at the surface of the nanorods, which is linked to the low onset potential values. We detail the quantification approach that revealed the specific microstructure of individual hematite nanorods.

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来源期刊

Journal of Electron Spectroscopy and Related Phenomena 物理-光谱学

CiteScore

3.30

自引率

5.30%

发文量

审稿时长

60 days

期刊介绍： The Journal of Electron Spectroscopy and Related Phenomena publishes experimental, theoretical and applied work in the field of electron spectroscopy and electronic structure, involving techniques which use high energy photons (>10 eV) or electrons as probes or detected particles in the investigation.