Direct imaging of Pt single atoms adsorbed on TiO2 (110) surfaces

Nano Letters
Teng-Yuan ChangNaoya Shibata

Abstract

Noble metal nanoparticles (e.g., gold and platinum) supported on TiO2 surfaces are utilized in many technological applications such as heterogeneous catalysts. To fully understand their enhanced catalytic activity, it is essential to unravel the interfacial interaction between the metal atoms and TiO2 surfaces at the level of atomic dimensions. However, it has been extremely difficult to directly characterize the atomic-scale structures that result when individual metal atoms are adsorbed on the TiO2 surfaces. Here, we show direct atomic-resolution images of individual Pt atoms adsorbed on TiO2 (110) surfaces using aberration-corrected scanning transmission electron microscopy. Subangstrom spatial resolution enables us to identify five different Pt atom adsorption sites on the TiO2 (110) surface. Combining this with systematic density functional theory calculations reveals that the most favorable Pt adsorption sites are on vacancy sites of basal oxygen atoms that are located in subsurface positions relative to the top surface bridging oxygen atoms.

References

Mar 15, 2003·Science·Alexis T Bell
Oct 12, 2004·The Journal of Chemical Physics·J OviedoJ F Sanz
May 3, 2006·Langmuir : the ACS Journal of Surfaces and Colloids·Yunfeng LuB A Parkinson
Jul 11, 2006·The Journal of Physical Chemistry. B·Akira SasaharaHiroshi Onishi
Oct 25, 2008·Science·N ShibataY Ikuhara
Apr 28, 2009·Physical Review Letters·N ShibataY Ikuhara
Jul 23, 2011·Nature Chemistry·Botao QiaoTao Zhang

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Citations

Dec 8, 2014·The Journal of Chemical Physics·F RieboldtS Wendt
Sep 13, 2014·Journal of the American Chemical Society·Zi-Yu LiSheng-Gui He
Nov 11, 2014·TheScientificWorldJournal·Samira BagheriSharifah Bee Abd Hamid
Aug 19, 2015·Scientific Reports·Takeshi DaioKazunari Sasaki
May 16, 2015·Physical Chemistry Chemical Physics : PCCP·Wei Zhang, Wei Tao Zheng
Mar 10, 2016·Chemistry, an Asian Journal·Yan ZhouWenjie Shen
Nov 2, 2019·Physical Chemistry Chemical Physics : PCCP·Gabriel JeantelotJean-Marie Basset
Nov 2, 2019·Physical Chemistry Chemical Physics : PCCP·Bo WenLi-Min Liu
Jul 10, 2019·Advanced Materials·Xuning LiBin Liu
Apr 2, 2016·Journal of Physics. Condensed Matter : an Institute of Physics Journal·Katsuyuki MatsunagaNaoya Shibata
May 26, 2017·Angewandte Chemie·Chengzhou ZhuYuehe Lin
Oct 11, 2017·Chemical Communications : Chem Comm·Xinyao DaiYadong Li
Mar 23, 2021·Advanced Materials·Shuiping LuoZewei Quan
Nov 21, 2017·The Journal of Physical Chemistry. C, Nanomaterials and Interfaces·Andrew MellorGeoff Thornton
Mar 19, 2020·Chemical Reviews·Chao GaoYujie Xiong
Oct 22, 2020·Chemical Reviews·Selina K KaiserJavier Pérez-Ramírez
Oct 29, 2020·Chemical Reviews·Rui LangTao Zhang

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