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Atomic Scale Three-Dimensional Au Nanocluster on a Rutile TiO2 (110) Surface Resolved by Atomic Force Microscopy.
The Journal of Physical Chemistry Letters ( IF 4.8 ) Pub Date : 2020-08-11 , DOI: 10.1021/acs.jpclett.0c02042
Yuuki Adachi 1 , Yasuhiro Sugawara 1 , Yan Jun Li 1
Affiliation  

The atomic structure of a three-dimensional Au nanocluster on a TiO2 surface is important for various studies such as photocatalysis and chemical reactions on metal oxide surfaces. However, accessing the atomic structure of a metal nanocluster supported on a metal oxide surface is still challenging possibly because of its small size, complexity, and flexible structure. Here, we report a detuning imaging mode combined with an atomically sharp tip to address these challenges. Using this method, for the first time, we resolve a three-dimensional Au nanocluster on a rutile TiO2 (110) surface. We found that the Au nanocluster was continuously adsorbed at the upper and lower terraces. Our results open up a new methodology for studying subnanometer clusters at various surfaces at an atomic scale.

中文翻译:

通过原子力显微镜解析的金红石型TiO2(110)表面上的原子尺度三维Au纳米簇。

TiO 2表面上的三维Au纳米簇的原子结构对于诸如光催化和金属氧化物表面上的化学反应的各种研究很重要。然而,由于其小尺寸,复杂性和柔性结构,接近负载在金属氧化物表面上的金属纳米团簇的原子结构仍然具有挑战性。在这里,我们报告了一种失谐的成像模式以及原子上尖锐的尖端,可以应对这些挑战。使用这种方法,我们首次在金红石型TiO 2上解析了三维金纳米簇(110)表面。我们发现金纳米团簇被连续吸附在上,下阶地。我们的研究结果开辟了一种新方法,可用于研究原子尺度下不同表面的亚纳米团簇。
更新日期:2020-09-03
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